CN114419852A

CN114419852A - Offset judgment and grading early warning method and device for scraper conveyor

Info

Publication number: CN114419852A
Application number: CN202111615676.8A
Authority: CN
Inventors: 潘黎明; 徐刚; 薛吉胜; 黄志增; 范志忠; 赵铁林; 于健浩
Original assignee: Tiandi Science and Technology Co Ltd; CCTEG Coal Mining Research Institute
Current assignee: Tiandi Science and Technology Co Ltd; CCTEG Coal Mining Research Institute
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-29
Anticipated expiration: 2041-12-27
Also published as: CN114419852B

Abstract

The application discloses a method and a device for deviation judgment and grading early warning of a scraper conveyor, and relates to the field of scraper conveyor equipment. The specific implementation scheme is as follows: responding to a starting instruction of the scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance comprises real-time distance information of each measuring point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measuring points; calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally runs; performing offset judgment on the real-time distance based on a preset target threshold range and a safety target distance; determining that the scraper conveyor is offset in response to the real-time distance being greater than the sum of the safe target distance and the target threshold range; and early warning is carried out on the scraper conveyor based on the preset grading early warning threshold distance.

Description

Offset judgment and grading early warning method and device for scraper conveyor

Technical Field

The application relates to the field of scraper conveyor equipment, in particular to a method and a device for deviation judgment and grading early warning of a scraper conveyor.

Background

The scraper conveyor is a conveyor which is dragged by a scraper chain and conveys bulk materials in a groove. In the current coal mining face, the scraper conveyor not only serves to convey coal and materials, but also serves as a running track of a coal mining machine, so that the scraper conveyor becomes an indispensable main device in the modern coal mining process.

Disclosure of Invention

The application provides a method and a device for deviation judgment and grading early warning of a scraper conveyor.

According to a first aspect of the application, a method and a device for judging offset and grading early warning of a scraper conveyor are provided, and the method comprises the following steps:

responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance comprises real-time distance information of each measuring point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measuring points;

calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally runs;

performing offset judgment on the real-time distance based on a preset target threshold range and the safe target distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance;

determining that the face conveyor is deflected in response to the real-time distance being greater than a sum of the safe target distance and a target threshold range;

and early warning is carried out on the scraper conveyor based on a preset grading early warning threshold distance.

According to a second aspect of the present application, there is provided a scraper conveyor deviation determination and grading pre-warning device, comprising:

the acquisition module is used for responding to a starting instruction of the scraper conveyor and acquiring the real-time distance of the scraper conveyor; the real-time distance comprises real-time distance information of each measuring point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measuring points;

the calculation module is used for calculating the safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally runs;

the judging module is used for carrying out deviation judgment on the real-time distance based on a preset target threshold range and the safe target distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance;

a determination module to determine that the face conveyor is offset in response to the real-time distance being greater than a sum of the safe target distance and a target threshold range;

and the early warning module is used for early warning the scraper conveyor based on the preset grading early warning threshold distance.

According to a third aspect of the present application, there is provided an electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect.

According to a fourth aspect of the present application, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of the aforementioned first aspect.

According to a fifth aspect of the present application, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the method according to the preceding first aspect.

According to the technical scheme, the distance range of normal operation of the scraper conveyor at the moment is determined according to the safe target distance and the target threshold range, so that the scraper conveyor is ensured not to deviate when the scraper conveyor operates within the target threshold range; whether the scraper conveyor deviates at the moment is judged according to the real-time distance of the scraper conveyor, so that the running state of the scraper conveyor is judged, and the transportation state of the scraper conveyor is early warned according to the preset grading early warning threshold distance, so that the running state of the scraper conveyor is monitored in real time, the scraper conveyor can be checked and adjusted in the first time when deviating, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and orderly production of coal mining work is ensured.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present application, nor do they limit the scope of the present application. Other features of the present application will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

fig. 1 is a flowchart of a method for determining offset and performing a grading pre-warning on a scraper conveyor according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of another method for determining offset and warning grade of a scraper conveyor according to an embodiment of the present disclosure;

FIG. 3 is a flow chart of another method for determining offset and warning grade of a scraper conveyor according to an embodiment of the present disclosure;

FIG. 4 is a flow chart of another method for determining offset and pre-warning in stages of a scraper conveyor according to an embodiment of the present disclosure;

FIG. 5 is a flow chart of another method for determining offset and pre-warning in stages of a scraper conveyor according to an embodiment of the present disclosure;

fig. 6 is a block diagram illustrating a structure of a scraper conveyor deviation determination and grading early warning device according to an embodiment of the present disclosure;

fig. 7 is a block diagram of another offset determination and classification pre-warning device for a scraper conveyor according to an embodiment of the present disclosure;

FIG. 8 is a block diagram of another offset determination and classification pre-warning device for a scraper conveyor according to an embodiment of the present disclosure;

fig. 9 is a block diagram illustrating a structure of another device for determining deviation and early warning in stages of a scraper conveyor according to an embodiment of the present disclosure;

fig. 10 is a block diagram illustrating a structure of another offset determination and grading pre-warning device for a scraper conveyor according to an embodiment of the present disclosure;

fig. 11 is a block diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

It should be noted that the phenomenon of "up-shifting and down-shifting" is easily generated in the coal mining process of the scraper conveyor, wherein the phenomenon of "up-shifting and down-shifting" refers to that the scraper conveyor moves to the air inlet lane and the air return lane on both sides. The phenomenon of up-shifting and down-shifting can lead to the unreasonable lapping condition of the scraper conveyor and the reversed loader, and can lead to the phenomena of difficult unloading of the scraper conveyor, difficult end support and the like, and mechanical accidents and roof accidents are easily caused, so that potential safety hazards are generated, and the production efficiency is seriously influenced. The up-shifting and down-sliding adjustment treatment period of the scraper conveyor is long, so that the production efficiency is seriously reduced, and the safe and orderly production of coal mining work is seriously influenced. Therefore, the judgment and early warning of the up-shifting and down-shifting of the scraper conveyor are very important, and the early judgment and early warning and the adopted specific measures can avoid most of the up-shifting and down-shifting.

Based on the problems, the application discloses a method and a device for deviation judgment and grading early warning of a scraper conveyor. The real-time distance information, the safe distance information and the safe value range of each measuring point of the scraper conveyor are obtained, and judgment and early warning of the offset state of the scraper conveyor are achieved.

Fig. 1 is a flowchart of a method for determining deviation and warning in stages of a scraper conveyor according to an embodiment of the present application, and it should be noted that the method for determining deviation and warning in stages of a scraper conveyor according to the embodiment of the present application can be applied to a device for determining deviation and warning in stages of a scraper conveyor according to the embodiment of the present application, and the device for determining deviation and warning in stages of a scraper conveyor can be configured on an electronic device. As shown in fig. 1, the offset determination and grading pre-warning method for the scraper conveyer may include the following steps:

step 101, responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance includes real-time distance information of each measurement point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measurement points.

It should be noted that, the selection of the measuring point on the scraper conveyor needs to satisfy: after the scraper conveyer deflects, the offset of the scraper conveyer to the two side air inlet lanes and the air return lane can be embodied, if a measuring point M is selected on the scraper conveyer, and after the scraper conveyer deflects, the distance change of the measuring point M to the air inlet lanes and the air return lanes on the two sides is not generated in the process of deflection obtained by measurement, the M point can be judged to be not suitable as the measuring point of the scraper conveyer.

It should be noted that the real-time distance information of the measuring points on the scraper conveyor may include, but is not limited to: the first distance may be a distance variation between a head of a current scraper conveyor and a safe pedestrian passageway (a real-time detection distance between the head of the scraper conveyor and a coal pillar side of an air inlet roadway), the second distance may be a distance variation between a tail of the current scraper conveyor and the safe pedestrian passageway (a real-time detection distance between the tail of the scraper conveyor and the coal pillar side of the air return roadway), the third distance may be a lap joint distance variation between the head of the current scraper conveyor and a reversed loader, the fourth distance may be a distance variation between the head of the current scraper conveyor and the central line of the air inlet roadway, and the fifth distance may be a distance variation between the tail of the current scraper conveyor and the central line of the air return roadway.

It should be noted that there are many methods for obtaining the real-time distance, for example, the distance measuring operation is performed by a laser tracker, or the distance measuring operation is performed by an ultrasonic distance measuring device, it can be understood that there are many methods for obtaining the real-time distance information of each measuring point on the scraper conveyor, and two examples are given below to describe specific methods for obtaining the real-time distance information of each measuring point on the scraper conveyor:

as an example, a laser tracker is firstly installed at the head position of a scraper conveyor, a reflector is installed at a safe pedestrian passageway, when laser emitted by the laser tracker is irradiated on the reflector and reflected back to the laser tracker, the total time required from the emission to the reflection of the laser can be obtained, the length of a first distance can be measured according to the emission speed of the laser, and the measuring methods of a second distance, a third distance, a fourth distance and a fifth distance are the same.

As another example, firstly, an ultrasonic distance meter is installed on the head of a scraper conveyor, then ultrasonic distance measurement is carried out to emit ultrasonic waves, timing is started while the emission time is the same, the ultrasonic waves propagate in the air, when the ultrasonic distance meter returns after meeting the edge of a safe pedestrian passageway, the timing is stopped after the ultrasonic distance meter detects a reflection wave, the length of a first distance can be calculated according to the propagation speed of the ultrasonic waves in the air and the recorded time, and the measuring methods of a second distance, a third distance, a fourth distance and a fifth distance are the same.

102, calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally operates.

Note that the safety target distance is an average distance of the respective measurement points of the scraper conveyor during normal operation.

As a display mode of the application, the installation position of the scraper conveyor is determined, the distance information of each measuring point during the normal operation of the scraper conveyor is obtained, and the average distance information of each measuring point during the normal operation of the scraper conveyor is calculated, namely the safety target distance; the safety distance information is the average distance information of each measuring point of the scraper conveyer during the normal operation of the scraper conveyer.

It should be noted that the safety distance information of the measuring point on the scraper conveyor may include, but is not limited to: the first target distance, the second target distance, the third target distance, the fourth target distance, and the fifth target distance, wherein the first distance may be: during normal operation of the scraper conveyor, the distance of the nose of the scraper conveyor from the safe pedestrian passageway may be the average of: during normal operation of the face conveyor, the distance of the tail of the face conveyor from the safe pedestrian walkway may be averaged, and the third distance may be: during normal operation of the scraper conveyor, the average of the lapping distances of the head of the scraper conveyor and the reversed loader can be as follows: during normal operation of the scraper conveyor, the average distance from the head of the scraper conveyor to the central line of the air intake way, and the fifth distance may be: and during the normal operation of the scraper conveyor, the distance from the tail of the scraper conveyor to the central line of the return airway is averaged.

It should be noted that, when the air intake lane and the air return lane have the phenomena of bulging and super-expansion, the value of the safe target distance needs to be adjusted in consideration of the influence caused by the deformation of the air intake lane and the air return lane.

Wherein, the group of the air inlet lane and return airway swells the phenomenon does: because the air inlet lane and the air return lane are arranged below the plane, when the pressure on the inner sides of the air inlet lane and the air return lane changes or the side support of the air inlet lane and the air return lane cannot provide stable support force, the side walls of the air inlet lane and the air return lane can be extruded and deformed inwards, so that the inner spaces of the air inlet lane and the air return lane become small.

The phenomenon of super expansion of the air inlet lane and the air return lane is as follows: and according to the construction requirements, after judging that the internal spaces of the air inlet lane and the air return lane are not enough to meet the construction conditions, performing expansion treatment on the air inlet lane and the air return lane so as to increase the internal spaces of the air inlet lane and the air return lane.

103, carrying out offset judgment on the real-time distance based on a preset target threshold range and a safety target distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance.

It should be noted that the safety value range is based on the safety target distance, and the condition that the normal operation of the scraper conveyor is met is considered, so that the normal operation of the scraper conveyor cannot be influenced within a certain range of the deviation of the scraper conveyor, and at this time, the deviation range of the scraper conveyor is the safety value range.

For example, assuming that a rectangular coordinate system is established with the safe target distance of the scraper conveyor as the origin and the first distance is taken as an example, the upward movement of the scraper conveyor is the positive direction of the X axis, the downward movement of the scraper conveyor is the negative direction of the X axis, it is determined that the normal operation of the scraper conveyor is affected when the upward movement of the scraper conveyor exceeds 1 meter, and it is determined that the normal operation of the scraper conveyor is affected when the downward movement of the scraper conveyor exceeds 1 meter, and it is determined that the safe value range of the scraper conveyor at this time is: (-1,0) to (1,0), for example, when the scraper conveyor moves up by 0.5 meter, the first distance of the scraper conveyor is (0.5,0), it can be determined that the scraper conveyor is located in the safe value range at this time, and the scraper conveyor can normally operate at this time; when the scraper conveyer slides downwards for 1.5 meters, the first distance of the scraper conveyer is (-1.5,0), and it can be determined that the scraper conveyer does not belong to the safety value range at the moment, and the scraper conveyer cannot normally run at the moment.

In response to the real-time distance being greater than the sum of the safe target distance and the target threshold range, a determination is made that the face conveyor is offset, step 104.

As one implementation of the present application, the safe target distance of the scraper conveyor at this time is determined to be X₁Determining the target threshold range of the scraper conveyor at the moment as follows: 0 to X₂Adding the safe target distance to the target threshold range yields the range: x₁To X₁+X₂(ii) a Judging that the real-time distance of the scraper conveyor is X at the moment₃Judgment of X₃Whether or not it is greater than X₁+X₂If X is₃Greater than X₁+X₂This indicates that the scraper conveyor is displaced at this time, and X is₃Less than X₁+X₂This indicates that the scraper conveyor is not deflected at this time.

Note that the offset of the scraper conveyor includes: the upward movement of the scraper conveyor and the downward movement of the scraper conveyor.

In one embodiment of the present application, a rectangular coordinate system is established with a safe target distance as an origin, a direction in which a flight phenomenon occurs in a scraper conveyor is taken as a positive direction of an X axis, a direction in which a slide phenomenon occurs in the scraper conveyor is taken as a negative direction of the X axis, a target threshold range of the scraper conveyor is a value that can ensure normal operation of the scraper conveyor within a range in which the origin imposes a fixed value on the X axis in both directions, at this time, a real-time distance of the scraper conveyor is converted into a coordinate value on a coordinate system, whether a coordinate value of the real-time distance is within the target threshold range is determined, it is determined that the scraper conveyor is not offset at this time if the coordinate value of the real-time distance is within the target threshold range, and it is determined that the scraper conveyor is offset if the coordinate value of the real-time distance is not within the target threshold range. Further, if the real-time distance of the offset scraper conveyer is located in the positive direction of the X axis, the phenomenon that the scraper conveyer moves upwards is determined, and if the real-time distance of the offset scraper conveyer is located in the negative direction of the X axis, the phenomenon that the scraper conveyer slides downwards is determined.

And 105, early warning the scraper conveyor based on the preset grading early warning threshold distance.

It should be noted that the rank warning threshold distance may include, but is not limited to: a first early warning threshold distance, a second early warning threshold distance, a third early warning threshold distance, a fourth early warning threshold distance and a fifth early warning threshold distance; the first early warning threshold distance is an early warning range of the distance between the head of the scraper conveyor and the safe pedestrian passageway during the offset operation of the scraper conveyor, and the second early warning threshold distance is an early warning value of the distance between the tail of the scraper conveyor and the safe pedestrian passageway during the offset operation of the scraper conveyor; the third early warning threshold distance is a lap joint early warning value of the machine head of the scraper conveyor and the reversed loader during the offset operation of the scraper conveyor, and the fourth early warning threshold distance is an early warning value from the machine head of the scraper conveyor to the central line of the air inlet roadway during the offset operation of the scraper conveyor; and the fifth early warning threshold distance is an early warning value from the tail of the scraper conveyor to the central line of the return airway during the offset operation of the scraper conveyor. The first early warning threshold distance, the second early warning threshold distance, the third early warning threshold distance, the fourth early warning threshold distance and the fifth early warning threshold distance are in one-to-one correspondence with the first distance, the second distance, the third distance, the fourth distance and the fifth distance respectively.

As an example, if a first distance, a second distance, a third distance, a fourth distance and a fifth distance of N measurement points in the scraper conveyor are greater than corresponding first warning threshold distance, second warning threshold distance, third warning threshold distance, fourth warning threshold distance and fifth warning threshold distance, where N is greater than or equal to 1, the scraper conveyor is warned at this time.

According to the offset judgment and grading early warning method of the scraper conveyor, the distance range of normal operation of the scraper conveyor at the moment is determined according to the safe target distance and the target threshold range, and the condition that the scraper conveyor does not offset when the scraper conveyor operates within the target threshold range is ensured; whether the scraper conveyor deviates at the moment is judged according to the real-time distance of the scraper conveyor, so that the running state of the scraper conveyor is judged, and the transportation state of the scraper conveyor is early warned according to the preset grading early warning threshold distance, so that the running state of the scraper conveyor is monitored in real time, the scraper conveyor can be checked and adjusted in the first time when deviating, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and orderly production of coal mining work is ensured.

The deviation phenomenon of the scraper conveyor includes a fleeing phenomenon of the scraper conveyor, and in order to determine whether the fleeing phenomenon of the scraper conveyor occurs, the deviation phenomenon of the scraper conveyor can be judged according to a pre-set fleeing early warning threshold range. Alternatively, as shown in fig. 2, fig. 2 is a flowchart of another offset determination and grading pre-warning method for a scraper conveyor provided in an embodiment of the present application, where the method includes the following steps:

step 201, responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance includes real-time distance information of each measurement point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measurement points.

In the embodiment of the present application, step 201 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 202, calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally operates.

In the embodiment of the present application, step 202 may be implemented by any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 203, based on a preset target threshold range and a safety target distance, carrying out offset judgment on the real-time distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance.

In the embodiment of the present application, step 203 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 204, judging whether the real-time distance is within the pre-fleeing early warning threshold range or not based on the pre-set pre-fleeing early warning threshold range and the safe target distance; the fleeing early warning threshold range is the distance range of each measuring point of the scraper conveyor during the fleeing operation.

As an implementation manner of the application, a rectangular coordinate system is established by taking a safe target distance as an original point (0,0), and a direction in which the upward movement phenomenon of the scraper conveyor occurs is taken as the positive direction of an X axis, wherein a target threshold range of the scraper conveyor is a value which can ensure the normal operation of the scraper conveyor in a range of a fixed value of the original point in the positive direction of the X axis, and the value is displayed as (0,0) to (0, X) by coordinate values₄) (ii) a The upward fleeing early warning threshold value range is displayed as (0, X) by coordinate values₄) And when the real-time distance information of each measuring point of the scraper conveyor is within the range of the pre-warning threshold value of the upward fleeing, determining the real-time distance information of each measuring point of the scraper conveyor.

In addition, X is₄The point is to ensure that the offset of the scraper conveyor is less than X at the moment₄The scraper conveyer can normally run, if the offset of the scraper conveyer is more than or equal to X₄In this case, the scraper conveyor moves upward.

As an example, a rectangular coordinate system is established with a safe target distance as an origin (0,0), a direction in which a kickup phenomenon occurs in the blade conveyor is taken as a positive direction of the X axis, a target threshold range of the blade conveyor is (0,0) to (5, 0), and a kickup warning threshold range is displayed as coordinate values of (5, 0) to (+ ∞, 0); determining that the first distance is (2, 0), the second distance is (6, 0), the third distance is (4, 0), the fourth distance is (3, 0) and the fifth distance is (2, 0) in the scraper conveyer at the moment; at this time, the first distance, the third distance, the fourth distance and the fifth distance are all within a target threshold range of the scraper conveyor, and the second distance is within a fleeing early warning threshold range.

Step 205, responding to the fact that the real-time distance information of N measuring points in the real-time distance is within the fleeing early warning threshold range, the scraper conveyor is in a fleeing running state; wherein N is greater than or equal to 1.

As an implementation manner of the application, according to real-time distance information of each measuring point of the scraper conveyor, each measuring point of the scraper conveyor is judged to be in the upward movement early warning threshold range after the fact that each measuring point is sent, if more than or equal to 1 measuring point is in the upward movement early warning threshold range, the scraper conveyor can be judged to be in the upward movement state, and if no measuring point is in the upward movement early warning threshold range, the scraper conveyor can be judged not to be in the upward movement state.

It should be noted that, based on how many measurement points in the range of the pre-warning threshold value of the upward movement of the actual distance information in the scraper conveyor are, the tendency of the upward movement of the scraper conveyor can be judged, that is, the more measurement points in the range of the pre-warning threshold value of the upward movement of the actual distance information in the scraper conveyor are, the stronger the tendency of the upward movement of the scraper conveyor at this time can be proved. If the number of the measurement points of which the actual distance information is within the upward movement early warning threshold range is smaller, the trend that the upward movement of the scraper conveyor appears at the moment can be proved to be weaker.

As an example, a rectangular coordinate system is established with a safe target distance as an origin (0,0), a direction in which a kickup phenomenon occurs in the blade conveyor is taken as a positive direction of the X axis, a target threshold range of the blade conveyor is (0,0) to (5, 0), and a kickup warning threshold range is displayed as coordinate values of (5, 0) to (+ ∞, 0); determining that the first distance is (2, 0), the second distance is (6, 0), the third distance is (3, 0), the fourth distance is (4, 0) and the fifth distance is (2, 0) in the scraper conveyer at the moment; at the moment, the first distance, the third distance, the fourth distance and the fifth distance are all located in a target threshold range of the scraper conveyor, and the second distance does not belong to the target threshold range of the scraper conveyor and is located in an upward-fleeing early-warning threshold range. At this time, it can be judged that the scraper conveyor is in the upward movement state.

And step 206, early warning is carried out on the scraper conveyor based on the preset grading early warning threshold distance.

In the embodiment of the present application, step 206 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

According to the offset judgment and grading early warning method for the scraper conveyor, whether the scraper conveyor is in the upward-fleeing state or not is judged through the preset upward-fleeing early warning threshold range, the early warning treatment can be carried out in the first time if the scraper conveyor is in the upward-fleeing state, the influence of the upward-fleeing state on the production efficiency of the scraper conveyor is reduced, the phenomena that the scraper conveyor and a reversed loader are unreasonably lapped, the unloading is difficult, the end support is difficult and the like are prevented, and the safe and orderly production of coal mining work is ensured.

It should be noted that the deviation phenomenon of the scraper conveyor includes a slip-down phenomenon of the scraper conveyor, and in order to determine whether the slip-down phenomenon occurs in the scraper conveyor, the determination may be performed according to a preset slip-down warning threshold range. Alternatively, as shown in fig. 3, fig. 3 is a flowchart of another offset determination and grading pre-warning method for a scraper conveyor provided in an embodiment of the present application, where the method includes the following steps:

step 301, responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance includes real-time distance information of each measurement point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measurement points.

In the embodiment of the present application, step 301 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 302, calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally operates.

In the embodiment of the present application, step 302 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 303, based on a preset target threshold range and a safety target distance, performing offset judgment on the real-time distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance.

In the embodiment of the present application, step 303 may be implemented by respectively adopting any one of the embodiments of the present application, and this is not limited in this embodiment of the present application and is not described again.

Step 304, judging whether the real-time distance is within the glide early warning threshold range or not based on the preset glide early warning threshold range and the safety target distance; the range of the glide early warning threshold value is the distance range of each measuring point of the scraper conveyor in the glide operation period.

As an implementation manner of the application, a rectangular coordinate system is established by taking a safe target distance as an original point (0,0), and the direction of the slide-down phenomenon of the scraper conveyor is taken as the negative direction of an X axis, wherein the target threshold range of the scraper conveyor is a value which can ensure the normal operation of the scraper conveyor within the fixed value range of the original point in the negative direction of the X axis, and the target threshold range is displayed as (0,0) to (-X) by coordinate values₅0); the glide-off early warning threshold range is displayed as (-X) by coordinate value₅And 0) to (-infinity, 0), determining real-time distance information of each measuring point of the scraper conveyor, and judging whether the real-time distance information of each measuring point of the scraper conveyor is within a downslide early warning threshold range.

In addition, X is₅The point is to ensure that the offset of the scraper conveyor is less than X at the moment₅The scraper conveyer can normally run, if the offset of the scraper conveyer is more than or equal to X₅When the scraper conveyer slides down, the scraper conveyer slides down.

As an example, a rectangular coordinate system is established with the safe target distance as the origin (0,0), the direction in which the slide-down phenomenon of the blade conveyor occurs is taken as the negative direction of the X axis, the target threshold range of the blade conveyor is (0,0) to (-5,0), and the slide-down warning threshold range is displayed as coordinate values of (-5,0) to (- ∞, 0); determining that the first distance is (-2, 0), the second distance is (-6, 0), the third distance is (-4, 0), the fourth distance is (-3, 0) and the fifth distance is (-2, 0) in the scraper conveyer at the moment; at this time, the first distance, the third distance, the fourth distance and the fifth distance are all within a target threshold range of the scraper conveyor, and the second distance is within a downslide warning threshold range.

305, responding to the fact that the real-time distance information of N measuring points in the real-time distance is within the range of the glide early warning threshold value, and enabling the scraper conveyer to be in a glide running state; wherein N is greater than or equal to 1.

As an implementation manner of the application, according to real-time distance information of each measuring point of the scraper conveyor, it is judged that each measuring point of the scraper conveyor is in a gliding early warning threshold range after the fact that each measuring point is sent, if more than or equal to 1 measuring point is in the gliding early warning threshold range, it can be judged that the scraper conveyor is in a gliding motion state, and if no measuring point is in the gliding early warning threshold range, it can be judged that the scraper conveyor is not in the gliding motion state.

It should be noted that, based on the number of measurement points of the actual distance information in the scraper conveyor within the range of the glide-down warning threshold, the trend of the scraper conveyor in the glide-down phenomenon can be determined, that is, the greater the number of measurement points of the actual distance information in the range of the glide-down warning threshold, the stronger the trend of the scraper conveyor in the glide-down phenomenon can be proved. If the number of the measuring points of the scraper conveyer with the actual distance information within the range of the glide early warning threshold value is less, the trend that the scraper conveyer glides at the moment appears is proved to be weaker.

As an example, a rectangular coordinate system is established with the safe target distance as the origin (0,0), the direction in which the slide-down phenomenon occurs on the blade conveyor is taken as the negative direction of the X axis, the target threshold range of the blade conveyor is (0,0) to (-5,0), and the slide-down warning threshold range is displayed as coordinate values: (-5,0) to (- ∞, 0); determining that the first distance is (-2, 0), the second distance is (-6, 0), the third distance is (-4, 0), the fourth distance is (-3, 0) and the fifth distance is (-2, 0) in the scraper conveyer at the moment; at the moment, the first distance, the third distance, the fourth distance and the fifth distance are all located within a target threshold range of the scraper conveyor, and the second distance does not belong to the target threshold range of the scraper conveyor and is within a gliding early warning threshold range. At this time, the scraper conveyor can be judged to be in a downward sliding motion state.

And step 306, early warning the scraper conveyor based on the preset grading early warning threshold distance.

In the embodiment of the present application, step 306 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

According to the method for judging the offset and grading the early warning of the scraper conveyor, whether the scraper conveyor is in the gliding state or not is judged through the range of the gliding early warning threshold value which is preset, the early warning treatment can be carried out in the first time if the scraper conveyor is in the gliding state, the influence of the gliding state on the production efficiency of the scraper conveyor is reduced, the phenomena that the scraper conveyor and a reversed loader are unreasonable in lap joint, the unloading is difficult, the end support is difficult and the like are prevented, and the safe and orderly production of coal mining work is ensured.

It should be noted that the grading early warning threshold distance includes a plurality of fleeing grade ranges; in order to carry out grading early warning when the upward movement phenomenon of the scraper conveyor occurs, the upward movement phenomenon can be graded according to the upward movement grade range, and grading early warning of the upward movement phenomenon of the scraper conveyor is realized. Alternatively, as shown in fig. 4, fig. 4 is a flowchart of another offset determination and grading pre-warning method for a scraper conveyor provided in the embodiment of the present application, where the method may include the following steps:

step 401, responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance includes real-time distance information of each measurement point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measurement points.

In the embodiment of the present application, step 401 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 402, calculating a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally operates.

In the embodiment of the present application, step 402 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 403, performing offset judgment on the real-time distance based on a preset target threshold range and a safety target distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance.

In the embodiment of the present application, step 403 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

In response to the real-time distance being greater than the sum of the safe target distance and the target threshold range, a determination is made that the face conveyor is offset 404.

In the embodiment of the present application, step 404 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

And step 405, responding to the upward movement running state of the scraper conveyor, and determining the upward movement grade range corresponding to each measuring point from a plurality of upward movement grade ranges on the basis of the real-time distance information and the target threshold value range of each measuring point.

It should be noted that the upward movement grade range can be divided into four grades, from low to high, in order of 1, 2, 3 and 4, and the four grades represent 4 different degrees of general, heavier, serious and particularly serious respectively. Wherein the four levels are judged according to the deviation degree of the scraper conveyer from the target threshold range in the upward-fleeing operation state, the deviation degree of the scraper conveyer from the target threshold range in the upward-fleeing operation state is minimum in the level 1 state, the deviation degree of the scraper conveyer from the target threshold range in the upward-fleeing operation state is maximum in the level 4 state,

as an example, when the phenomenon of the blade conveyor getting up is assumed, the getting-up grade range corresponding to each measuring point in the blade conveyor is determined according to the real-time distance information and the getting-up grade range of each measuring point in the blade conveyor.

And step 406, determining the final fleeing early warning level of the scraper conveyor according to the highest fleeing grade range in the fleeing grade ranges corresponding to the measuring points respectively.

For example, a rectangular coordinate system is established with the safe target distance as the origin (0,0), the direction in which the kickup phenomenon occurs in the scraper conveyor is taken as the positive direction of the X axis, the target threshold range of the scraper conveyor is (0,0) to (5, 0), and the kickup warning threshold range is displayed as coordinate values of (5, 0) to (+ ∞, 0); assuming that the scraper conveyor has a fleeing phenomenon at the moment, setting a fleeing grade range, wherein the 1-level early warning means that the real-time distance information of the measuring point is within the range from (5, 0) to (6, 0) and comprises the point (6, 0); level 2 is that the real-time distance information for the measurement points is in (6, 0) to (7, 0), including point (7, 0); level 3 is that the real-time distance information for the measurement points is in (7, 0) to (8, 0), including point (8, 0); level 4 is the real-time range information for the measurement point at (8, 0) to (+ ∞,0), including the point (+ ∞, 0). And the first distance (2, 0), the second distance (6, 0), the third distance (7.5, 0), the fourth distance (4, 0) and the fifth distance (2, 0) in the scraper conveyor at this time are determined. According to the data, the second distance is determined to be a level 1 early warning, and the third distance is determined to be a level three early warning. And determining that the final stage of the upward movement early warning of the scraper conveyor at the moment is three stages if the third stage of the early warning corresponding to the third distance is the highest upward movement stage range.

It should be noted that different colors are set for display according to the pre-warning level of the upward movement, wherein the pre-warning level of the upward movement at each level corresponds to one color, and no repeated color exists in the color corresponding to the pre-warning level of the upward movement.

As an embodiment, assuming that the fleeing level range can be divided into four levels, which are 1, 2, 3 and 4 levels from low to high, by setting the four colors of blue, yellow, orange and red to correspond to different fleeing level ranges, respectively, it can be obtained: level 1 corresponds to blue, level 2 corresponds to yellow, level 3 corresponds to orange, and level 4 corresponds to red. After the final upleap early warning level of the scraper conveyor is determined, early warning operation can be performed by displaying different colors.

It should be noted that there are many methods for embodying the warning color, for example, by installing a warning light, after the up-fleeing warning level of the scraper conveyor is finally determined, the warning light flashes the corresponding level color; for example, if it is finally determined that the final fleeing early warning level of the scraper conveyor is four, the warning lamp flashes orange light, or stroboflash with a corresponding color is performed on an operation screen of the scraper conveyor at the time; for example, assuming that it is finally determined that the final stage of the pre-warning of the kickup of the scraper conveyor is four, the operation screen of the scraper conveyor at this time is strobed orange.

According to the offset judgment and grading early warning method of the scraper conveyor, the upward movement degree of the scraper conveyor can be rapidly judged by setting the upward movement grade range, the rapid and convenient upward movement condition early warning operation is realized, an operator can rapidly master the offset condition of the scraper conveyor, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and ordered production of coal mining work is ensured.

It should be noted that the graded pre-warning threshold distance includes a plurality of downslide grade ranges; in order to carry out grading early warning when the scraper conveyer slips, the grade division can be carried out on the slip according to the slip grade range, so that the grading early warning of the slip phenomenon of the scraper conveyer is realized. Alternatively, as shown in fig. 5, fig. 5 is a flowchart of another offset determination and grading pre-warning method for a scraper conveyor provided in the embodiment of the present application, where the method may include the following steps:

step 501, responding to a starting instruction of a scraper conveyor, and acquiring a real-time distance of the scraper conveyor; the real-time distance includes real-time distance information of each measurement point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measurement points.

In the embodiment of the present application, step 501 may be implemented by any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 502, calculating to obtain a safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally operates.

In the embodiment of the present application, step 502 may be implemented by any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

Step 503, based on the preset target threshold range and the safe target distance, performing offset judgment on the real-time distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance.

In the embodiment of the present application, step 503 may be implemented by using any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

In response to the real-time distance being greater than the sum of the safe target distance and the target threshold range, a determination is made that the face conveyor is offset, step 504.

In the embodiment of the present application, step 504 may be implemented by any one of the embodiments of the present application, which is not limited in this embodiment and is not described again.

And 505, in response to the fact that the scraper conveyor is in the downward sliding running state, determining a downward sliding grade range corresponding to each measuring point from a plurality of downward sliding grade ranges on the basis of the real-time distance information and the target threshold range of each measuring point.

It should be noted that the range of the glide level can be divided into four levels, which are 1, 2, 3 and 4 levels from low to high, and the four levels represent 4 different degrees of normal, heavy, severe and particularly severe. The four levels are judged according to the deviation degree of the scraper conveyer from the target threshold range in the downward sliding operation state, the deviation degree of the scraper conveyer from the target threshold range in the downward sliding operation state is the minimum in the level 1 state, and the deviation degree of the scraper conveyer from the target threshold range in the downward sliding operation state is the maximum in the level 4 state.

As an example, when the scraper conveyer slips down, determining a slip-down grade range corresponding to each measurement point in the scraper conveyer according to real-time distance information and the slip-down grade range of each measurement point in the scraper conveyer.

And step 506, determining the final glide early warning level of the scraper conveyor according to the highest glide level range in the corresponding glide level ranges of the measurement points.

For example, a rectangular coordinate system is established with the safe target distance as the origin (0,0), the direction in which the slide-down phenomenon occurs on the scraper conveyor is taken as the negative direction of the X axis, the target threshold range of the scraper conveyor is (0,0) to (-5,0), and the slide-down warning threshold range is displayed as coordinate values of (-5,0) to (∞, 0); assuming that the scraper conveyer slips at the moment, setting a slip grade range, wherein the 1-level early warning means that the real-time distance information of the measuring point is within (-5,0) to (-6, 0) and comprises a point (-6, 0); the 2-level real-time distance information of the measuring points is between (-6, 0) and (-7, 0), and comprises the points (-7, 0); the 3-level real-time distance information of the measuring points is between (-7, 0) and (-8, 0), and comprises points (-8, 0); the real-time distance information for the measurement points at level 4 is between (-8, 0) and (- ∞,0), including the point (- ∞, 0). And the first distance (-2, 0), the second distance (-6, 0), the third distance (-7.5, 0), the fourth distance (-4, 0) and the fifth distance (-2, 0) in the scraper conveyor at this time were determined. According to the data, the second distance is determined to be a level 1 early warning, and the third distance is determined to be a level three early warning. And determining that the final grade of the downward sliding early warning of the scraper conveyor at the moment is three grades if the third grade of the early warning corresponding to the third distance is the highest downward sliding grade range.

It should be noted that different colors are set for displaying according to the downslide early warning level, wherein the downslide early warning level of each level corresponds to one color, and no repeated color exists in the color corresponding to the downslide early warning level.

As an embodiment, assuming that the downslide level range can be divided into four levels, which are 1, 2, 3 and 4 levels from low to high, by setting four colors of blue, yellow, orange and red to respectively correspond to different downslide level ranges, it can be obtained: level 1 corresponds to blue, level 2 corresponds to yellow, level three corresponds to orange, and level four corresponds to red. After the final glide early warning level of the scraper conveyor is determined, early warning and alarming can be performed by displaying different colors.

It should be noted that there are many methods for embodying the warning color, for example, by installing a warning light, after the glide warning level of the scraper conveyor is finally determined, the warning light flashes the corresponding level color; for example, if it is finally determined that the final glide warning level of the scraper conveyor is four, the warning light flashes orange light, or stroboflash of a corresponding color is performed on an operation screen of the scraper conveyor at the time; for example, assuming that the final down-slide warning level of the scraper conveyor is finally determined to be four levels, the operation screen of the scraper conveyor at this time is strobed orange.

According to the scraper conveyor deviation judging and grading early warning method provided by the embodiment of the application, through setting the downward sliding grade range, the downward sliding degree of the scraper conveyor can be rapidly judged, the rapid and convenient downward sliding condition early warning operation is realized, an operator can rapidly master the deviation condition of the scraper conveyor, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and orderly production of coal mining work is ensured.

In order to realize the embodiment, the application also provides a deviation judging and grading early warning device of the scraper conveyor.

Fig. 6 is a block diagram of a structure of a scraper conveyor deviation determination and classification warning device according to an embodiment of the present application, and as shown in fig. 6, the scraper conveyor deviation determination and classification warning device may include: an acquisition module 610, a calculation module 620, a judgment module 630, a determination module 640, and an early warning module 650.

The acquiring module 610 is configured to respond to a start instruction of the scraper conveyor and acquire a real-time distance of the scraper conveyor; the real-time distance comprises real-time distance information of each measuring point of the scraper conveyor, wherein the scraper conveyor is provided with a plurality of measuring points;

the calculation module 620 is used for calculating the safe target distance according to the installation position of the scraper conveyor; the safe target distance comprises safe distance information of each measuring point when the scraper conveyor normally runs;

a judging module 630, configured to perform offset judgment on the real-time distance based on a preset target threshold range and a safety target distance; the target threshold range is a safety value range obtained after the difference value operation is carried out on the real-time distance and the safety distance;

a determination module 640 for determining that the face conveyor is offset in response to the real-time distance being greater than the sum of the safe target distance and the target threshold range;

and the early warning module 650 is used for early warning the scraper conveyor based on the preset grading early warning threshold distance.

According to the offset judgment and grading early warning device of the scraper conveyor, the distance range of normal operation of the scraper conveyor at the moment is determined according to the safe target distance and the target threshold range, and the condition that the scraper conveyor does not offset when the scraper conveyor operates within the target threshold range is ensured; whether the scraper conveyor deviates at the moment is judged according to the real-time distance of the scraper conveyor, so that the running state of the scraper conveyor is judged, and the transportation state of the scraper conveyor is early warned according to the preset grading early warning threshold distance, so that the running state of the scraper conveyor is monitored in real time, the scraper conveyor can be checked and adjusted in the first time when deviating, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and orderly production of coal mining work is ensured.

In some embodiments of the present application, as shown in fig. 7, fig. 7 is a block diagram of another scraper conveyor deviation determination and grading pre-warning device provided in the embodiments of the present application. In this embodiment, the determining module 740 in the scraper conveyor deviation determination and grading early warning device may include: a first judgment unit 741 and a first determination unit 742.

The first judging unit 741 is configured to judge whether the real-time distance is within a pre-fleeing early warning threshold range based on the pre-set pre-fleeing early warning threshold range and the safety target distance; the fleeing early warning threshold range is the distance range of each measuring point of the scraper conveyor during the fleeing operation.

A first determining unit 742, configured to respond that the real-time distance information of N measurement points in the real-time distance is within the pre-warning threshold range of the upward movement, and the scraper conveyor is in an upward movement running state; wherein N is greater than or equal to 1.

Wherein, 710, 730, 750 in FIG. 7 and 610, 630, 650 in FIG. 6 have the same functions and structures.

According to scraper conveyor skew judgement and hierarchical early warning device of this application embodiment, through the early warning threshold value scope of scurrying on presetting, judge whether scraper conveyor is in the state of scurrying on, guaranteed to be in if scraper conveyor scurrying the state can make early warning processing the very first time, reduce the influence of the state of scurrying to scraper conveyor production efficiency, it is unreasonable to prevent scraper conveyor and elevating conveyor overlap joint, the uninstallation difficulty, phenomenons such as the difficulty is strutted to the end, guarantee coal mining work safety orderly production.

In some embodiments of the present application, as shown in fig. 8, fig. 8 is a block diagram of another scraper conveyor deviation determination and grading pre-warning device provided in the embodiments of the present application. In this embodiment of the present application, the determining module 840 in the offset determination and classification early warning device of the scraper conveyor may further include: a second determination unit 843 and a second determination unit 844.

The second judging unit 843 is configured to judge whether the real-time distance is within a glide early warning threshold range based on a preset glide early warning threshold range and a safety target distance; the range of the glide early warning threshold value is the distance range of each measuring point of the scraper conveyor in the glide operation period;

a second determining unit 844, configured to respond that the real-time distance information of N measurement points in the real-time distance is within the range of the downslide warning threshold, and the scraper conveyor is in a downslide operation state; wherein N is greater than or equal to 1.

Wherein 810, 830, 850 in fig. 8 and 710, 730, 750 in fig. 7 have the same functions and structures.

According to scraper conveyor skew judgement and hierarchical early warning device of this application embodiment, through the gliding early warning threshold value scope that sets up in advance, judge whether scraper conveyor is in the gliding state, guaranteed to make early warning processing the very first time if scraper conveyor is in the gliding state, reduce the influence of gliding state to scraper conveyor production efficiency, it is unreasonable to prevent scraper conveyor and elevating conveyor overlap joint, the uninstallation difficulty, phenomenon such as end support difficulty, guarantee coal mining work safety orderly production.

In some embodiments of the present application, as shown in fig. 9, fig. 9 is a block diagram of another scraper conveyor deviation determination and grading pre-warning device provided in the embodiments of the present application. In this embodiment, the graded pre-warning threshold distance includes a plurality of fleeing grade ranges, and the pre-warning module 950 in the scraper conveyor deviation determination and graded pre-warning apparatus may include: a third determination unit 951 and a fourth determination unit 952.

Wherein, the third determining unit 951 is used for responding to the upward movement running state of the scraper conveyor, and determining the upward movement grade range corresponding to each measuring point from a plurality of upward movement grade ranges on the basis of the real-time distance information and the target threshold value range of each measuring point.

And a fourth determining unit 952, configured to determine a final upstream warning level of the scraper conveyor according to a highest upstream level range in the upstream level ranges corresponding to the measurement points, respectively.

Wherein 910-940 in FIG. 9 and 810-840 in FIG. 8 have the same functions and structures.

According to scraper conveyor skew judgement and hierarchical early warning device of this application embodiment, scurry the grade scope on through setting up, guarantee that can be quick judgement scraper conveyor's the degree of scurrying on, realize more quick convenient scurrying the condition early warning operation on, let operating personnel's quick grasp scraper conveyor's the skew condition more, reduced the influence to scraper conveyor production efficiency, guaranteed coal mining work's safe orderly production.

In some embodiments of the present application, as shown in fig. 10, fig. 10 is a block diagram of another offset determination and grading pre-warning device for a scraper conveyor according to an embodiment of the present application. Wherein, in this application embodiment, hierarchical early warning threshold distance includes a plurality of gliding grade scopes, and early warning module 1050 in this scraper conveyor skew is judged and hierarchical early warning device can include: a fifth determining unit 1053 and a sixth determining unit 1054.

The fifth determining unit 1053 is configured to determine, in response to that the scraper conveyor is in the downward-sliding operation state, a downward-sliding grade range corresponding to each of the measurement points from the plurality of downward-sliding grade ranges based on the real-time distance information of each of the measurement points and the target threshold range.

A sixth determining unit 1054, configured to determine a final glide warning level of the scraper conveyor according to a highest glide level range in the respective corresponding glide level ranges of the measurement points.

Wherein, 1010-1040 in FIG. 10 and 910-940 in FIG. 9 have the same functions and structures.

According to scraper conveyor skew is judged and hierarchical early warning device of this application embodiment, through setting up glide grade scope, guarantee can be quick to distinguish scraper conveyor's glide degree, realize more quick convenient gliding condition early warning operation, let operating personnel's quick understanding scraper conveyor's skew condition more, reduced the influence to scraper conveyor production efficiency, guaranteed coal mining work's safe orderly production.

Based on the embodiments of the present application, a computer-readable storage medium is also provided, wherein computer instructions are used for causing a computer to execute the scraper conveyor offset determination and grading early warning method according to any one of the foregoing embodiments provided by the embodiments of the present application.

As shown in fig. 11, the present disclosure is a block diagram of an electronic device for determining offset of a scraper conveyor and performing a level-difference warning method according to an embodiment of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.

As shown in fig. 11, the electronic apparatus includes: one or more processors 1101, a memory 1102, and interfaces for connecting the various components, including a high speed interface and a low speed interface. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple electronic devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 11, a processor 1101 is taken as an example.

The memory 1102 is a non-transitory computer readable storage medium as provided herein. The memory stores instructions executable by the at least one processor to cause the at least one processor to perform the offset determination and the grading pre-warning method of the scraper conveyor provided by the present application. The non-transitory computer readable storage medium of the present application stores computer instructions for causing a computer to perform the scraper conveyor offset determination and grade pre-warning method provided herein.

The memory 1102, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules (e.g., the acquisition module 610, the calculation module 620, the determination module 630, the determination module 640, and the warning module 650 shown in fig. 6) corresponding to the scraper conveyor offset determination and the hierarchical warning method in embodiments of the present application. The processor 1101 executes various functional applications of the server and data processing, i.e., implementing the scraper conveyor offset determination and hierarchical warning method in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 1102.

The memory 1102 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by use of the electronic equipment of the scraper conveyor deviation determination and classification warning method, and the like. Further, the memory 1102 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 1102 optionally includes memory remotely located from the processor 1101, and these remote memories may be connected over a network to electronics of the apron conveyor offset determination and grading pre-warning method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The electronic equipment of the offset judgment and grading early warning method of the scraper conveyer can also comprise: an input device 1103 and an output device 1104. The processor 1101, the memory 1102, the input device 1103 and the output device 1104 may be connected by a bus or other means, and are exemplified by being connected by a bus in fig. 11.

The input device 1103 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device of the screed conveyor offset determination and grade pre-warning method, such as a touch screen, keypad, mouse, track pad, touch pad, pointer, one or more mouse buttons, track ball, joystick, or other input device. The output devices 1104 may include a display device, auxiliary lighting devices (e.g., LEDs), tactile feedback devices (e.g., vibrating motors), and the like. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.

Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.

These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), the internet, and blockchain networks.

The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The Server can be a cloud Server, also called a cloud computing Server or a cloud host, and is a host product in a cloud computing service system, so as to solve the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service ("Virtual Private Server", or simply "VPS"). The server may also be a server of a distributed system, or a server incorporating a blockchain.

According to the technical scheme of the embodiment of the application, the distance range of normal operation of the scraper conveyor at the moment is determined according to the safe target distance and the target threshold range, so that the scraper conveyor is ensured not to deviate when the scraper conveyor operates within the target threshold range; whether the scraper conveyor deviates at the moment is judged according to the real-time distance of the scraper conveyor, so that the running state of the scraper conveyor is judged, and the transportation state of the scraper conveyor is early warned according to the preset grading early warning threshold distance, so that the running state of the scraper conveyor is monitored in real time, the scraper conveyor can be checked and adjusted in the first time when deviating, the influence on the production efficiency of the scraper conveyor is reduced, and the safe and orderly production of coal mining work is ensured.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, and the present invention is not limited thereto as long as the desired results of the technical solutions disclosed in the present application can be achieved.

The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A deviation judging and grading early warning method for a scraper conveyor is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining that the face conveyor is offset in response to the real-time distance being greater than the safe target distance plus a target threshold range comprises:

judging whether the real-time distance is within the pre-set fleeing early warning threshold range or not based on the pre-set fleeing early warning threshold range and the safety target distance; the fleeing early warning threshold range is the distance range of each measuring point of the scraper conveyor during the fleeing operation period;

responding to the real-time distance information of N measuring points in the real-time distance to be within the upward movement early warning threshold range, and enabling the scraper conveyor to be in an upward movement running state; wherein N is greater than or equal to 1.

3. The method of claim 1, wherein the determining that the face conveyor is offset in response to the real-time distance being greater than the safe target distance plus a target threshold range comprises:

judging whether the real-time distance is within the range of the glide early warning threshold value or not based on the preset range of the glide early warning threshold value and the distance of the safe target; the range of the glide early warning threshold value is the distance range of each measuring point of the scraper conveyor in the glide operation period;

responding to the real-time distance information of N measuring points in the real-time distance within the range of the glide early warning threshold value, and enabling the scraper conveyer to be in a glide running state; wherein N is greater than or equal to 1.

4. The method of claim 1, wherein the graduated forewarning threshold distance comprises a number of fleeing grade ranges; based on the hierarchical early warning threshold value distance that sets up in advance, right scraper conveyor carries out the early warning, include:

determining a fleeing grade range corresponding to each measuring point from the plurality of fleeing grade ranges on the basis of the real-time distance information of each measuring point and the target threshold range in response to the scraper conveyor being in a fleeing operation state;

and determining the final upstream warning level of the scraper conveyor according to the highest upstream grade range in the upstream grade ranges corresponding to the measuring points.

5. The method of claim 1, wherein the graduated pre-alarm threshold distance comprises a number of downslide level ranges; based on the hierarchical early warning threshold value distance that sets up in advance, right scraper conveyor carries out the early warning, still includes:

determining a respective corresponding downward sliding grade range of each measuring point from the plurality of downward sliding grade ranges on the basis of the real-time distance information of each measuring point and the target threshold range in response to the scraper conveyor being in a downward sliding running state;

and determining the final glide early warning level of the scraper conveyor according to the highest glide grade range in the glide grade ranges corresponding to the measurement points respectively.

6. The utility model provides a scraper conveyor skew is judged and hierarchical early warning device which characterized in that includes:

7. The apparatus of claim 6, wherein the determining module comprises:

the first judgment unit is used for judging whether the real-time distance is within the pre-fleeing early warning threshold range or not based on the pre-set pre-fleeing early warning threshold range and the safety target distance; the fleeing early warning threshold range is the distance range of each measuring point of the scraper conveyor during the fleeing operation period;

the first determining unit is used for responding to the fact that real-time distance information of N measuring points in the real-time distance is within the fleeing early warning threshold range, and then the scraper conveyor is in a fleeing running state; wherein N is greater than or equal to 1.

8. The apparatus of claim 6, wherein the tiered warning threshold distance comprises a number of fleeing level ranges, and wherein the warning module comprises:

a third determining unit, configured to determine, in response to the scraper conveyor being in a fleeing operation state, a fleeing grade range corresponding to each of the measurement points from the fleeing grade ranges based on the real-time distance information of each of the measurement points and the target threshold range;

and the fourth determining unit is used for determining the final upstream warning level of the scraper conveyor according to the highest upstream grade range in the upstream grade ranges corresponding to the measuring points respectively.

9. An electronic device, comprising:

at least one processor; and

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the scraper conveyor offset determination and grade pre-warning method of any one of claims 1-5.

10. A computer-readable storage medium, wherein the computer instructions are configured to cause the computer to perform the method of scraper conveyor offset determination and grade pre-warning of any one of claims 1 to 5.