Device for monitoring volume of material pile in stock bin

Abstract

The utility model relates to a device for monitoring the volume of a material pile in a stock bin. The method is suitable for the technical field of storage measurement. The technical problem to be solved by the utility model is to provide the device for monitoring the volume of the material pile in the stock bin. According to the technical scheme, the device for monitoring the volume of the material pile in the stock bin comprises a plurality of installation assemblies which are arranged above the material pile in the stock bin at intervals, and the connecting ends of the installation assemblies correspond to the positions of the material piles in the stock bin one to one; the multiple radar assemblies are arranged at the connecting ends of the mounting assemblies correspondingly, and the radar assemblies can obtain point cloud data of the material piles within the detection range; the edge intelligent terminal is in communication connection with the multiple radar assemblies and can calculate corresponding volume data based on the point cloud data of the material piles; and the supervision platform is in communication connection with the edge intelligent terminal and is used for acquiring the volume data of all the material piles in the stock bin and displaying the volume data through a display terminal so as to realize real-time supervision of the stock of the material piles in the stock bin.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of warehousing measurement, especially a material pile volume monitoring device in a stock bin. BACKGROUND

[0002] Combined with the production process of the current project factory, most of the stockyards use fully enclosed air film bins, and the dust is large. In summer production, there will be high temperature and high humidity environment, which is not friendly to the on-site operation and maintenance personnel. At the same time, due to the large difference in storage time of semi-finished product stockyard, mixed material stockyard and finished product stockyard, in order to ensure the continuity of the whole chain of corresponding aggregate mining, processing, warehousing and sales, it is necessary to coordinate the mutual relationship between mining, production, warehousing and sales, accurately calculate the storage capacity of the stock bin, prevent the unsmooth and excessive feeding process, cause the material blocking and warehousing explosion, and finally realize the automatic production arrangement of the project.

[0003] At present, the traditional material pile volume measurement mainly adopts manual measurement, which has the following problems:

[0004] (1) Low inventory efficiency: manual measurement has large workload and long time, and the on-site environment is poor, which is harmful to the occupation health;

[0005] (2) Low measurement accuracy: manual measurement needs several workers to spend 1-2 days to complete the measurement, and the measurement result accuracy also depends on whether the operation of the workers is in place, and there are too many manual interference factors;

[0006] (3) Difficult management: manual measurement data can only be recorded by hand, which has the risk of data loss and input error, and it is difficult to archive data and not easy to carry out online digital management. INVENTION CONTENTS

[0007] The technical problem to be solved by the utility model is to provide a material pile volume monitoring device in a stock bin in view of the above problems.

[0008] The technical scheme adopted by the utility model is: a material pile volume monitoring device in a stock bin, comprising:

[0009] A plurality of installation components are arranged above the material pile in the stock bin, and the connection end of the installation component corresponds to the position of the material pile in the stock bin one by one;

[0010] A plurality of radar components are respectively arranged at the connection end of the installation component, and the radar component can obtain the point cloud data of the material pile in the detection range;

[0011] An edge intelligent terminal is in communication connection with the plurality of radar components, and can calculate the corresponding volume data based on the point cloud data of each material pile;

[0012] A supervision platform is in communication connection with the edge intelligent terminal, acquires the volume data of all stockpiles in the stockyard and displays the volume data through a display terminal to realize real-time supervision of stockpiles in the stockyard.

[0013] Through the above technical means, a plurality of installation assemblies are arranged in one-to-one correspondence with the stockpiles in the stockyard, the radar assembly is installed on the installation assembly, so that the plurality of radar assemblies can cover the plurality of stockpiles in the stockyard for detection, the edge intelligent terminal can calculate the volume data of the stockpiles based on the data detected by the radar assembly, and the supervision platform can uniformly manage the volume data of the plurality of stockpiles in the stockyard to realize real-time supervision of the volume of the stockpiles in the stockyard.

[0014] In some embodiments, the radar assembly is installed on the connecting end of the installation assembly through a rotating holder, the rotating holder can drive the radar assembly to rotate for detection, and the radar assembly includes a millimeter wave radar and a laser radar. If the dust concentration in the stockyard is high, the millimeter wave radar is selected, and if the dust concentration in the stockyard is low, the laser radar is selected.

[0015] In some embodiments, if the measured target stockpile is an irregular stockpile, a plurality of radar assemblies are arranged for the stockpile, so that the plurality of radar assemblies can scan the stockpile from different angles to realize mutual blind complementation.

[0016] In some embodiments, the incidence angle of the radar assembly is not more than 60°.

[0017] In some embodiments, a power distribution box is arranged in the site of the stockyard, the power distribution box is electrically connected with the radar assembly, and the power distribution box is used for supplying power to the radar assembly.

[0018] In some embodiments, the installation assembly includes a horizontal rod, a telescopic support, a hoop and a standard flange. If the stockyard is a shed structure, the telescopic support is fixed on the horizontal rod through the hoop, the radar assembly is installed at the end of the telescopic support, and the telescopic support can be telescopically adjusted according to the height of the stockpile.

[0019] If the stockyard is a silo or a tank, the radar assembly is installed and fixed through the standard flange.

[0020] In some embodiments, the edge intelligent terminal can also calculate corresponding height data based on the point cloud data of each stockpile, and the edge intelligent terminal is internally provided with a stockpile height threshold. If the height data of the stockpile is greater than the stockpile height threshold, a height overrun warning is given on the display terminal of the supervision platform.

[0021] In some embodiments, the edge intelligent terminal is also capable of image stitching based on the point cloud data of the plurality of radar components, and presenting a three-dimensional modeling effect picture on a display terminal of the supervision platform.

[0022] The utility model discloses the beneficial effects are:

[0023] 1、 through a plurality of installation components cooperate with radar component, make a plurality of radar components with the material pile in the bunker one to one arrangement, utilize radar component detection corresponding material pile data, and the edge intelligent terminal obtains the corresponding material pile volume according to material pair data, utilizes the supervision platform to carry out the unified management to the volume data of a plurality of material piles in the bunker, and a plurality of radar components can update material pile data in real time, so that the supervision platform can realize the real -time supervision to the material pile volume in the bunker, effectively guarantee the data accuracy of the storage capacity in the bunker, be convenient for the supervision personnel to the material pile in the bunker and make timely adjustment to the material feeding, discharge.

[0024] 2、 a plurality of radar components can start detection according to the actual situation of the material pile in the bunker, if the measured target material pile is regular, then the radar component of the material pile is started to obtain material pile data, and the material pile volume is calculated through the edge intelligent terminal, if the measured target material pile is irregular, presents a plurality of peaks, valleys and radar beam mutual shielding, then the radar component of the material pile periphery is started, so that a plurality of radar components scan the material pile from different angles, to realize mutual blind complement, finally splice to reach the effect of accurate imaging. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structural schematic diagram of example one.

[0026] Figure 2 It is the overhead view of the semi-finished product stockyard radar layout in example two.

[0027] Figure 3 It is the overhead view of the mine side mixed material stockyard radar layout in example two.

[0028] Figure 4 It is the first side view of the mine side mixed material stockyard radar layout in example two.

[0029] Figure 5 It is the second side view of the mine side mixed material stockyard radar layout in example two.

[0030] Figure 6 It is the port side mixed material stockyard radar layout in example two.

[0031] Figure 7 It is the layout of the bar mill adjustment material stockyard radar layout in example two.

[0032] Figure 8is the layout diagram of the radar arrangement of the land finished product stockyard in example two.

[0033] Figure 9 is the layout diagram of the radar arrangement of the port-side machine-made sand stockyard in example two.

[0034] Figure 10 is the structural schematic diagram of example three.

[0035] Explanation of reference signs:

[0036] 1, radar assembly; 2, millimeter wave radar; 3, laser radar.

[0037] This specification includes references to“one embodiment” or“an embodiment.” The occurrence of the phrase“in one embodiment” or“in an embodiment” does not necessarily refer to the same embodiment. Particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0038] “includes”, this term is open. As used in the appended claims, this term does not exclude additional structures or steps.

[0039] “first”,“second”, and the like. As used herein, these terms act as labels for nomenclature and do not necessarily connote any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION

[0040] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme of the present application will be further explained in combination with specific embodiments.

[0041] In combination Figure 1 As shown in the drawings, the embodiment is a material pile volume monitoring device in a stockyard, which comprises a plurality of mounting assemblies, a radar assembly 1, an edge intelligent terminal and a supervision platform. The plurality of mounting assemblies are arranged above the material piles in the stockyard at intervals. The connecting ends of the mounting assemblies correspond one-to-one to the positions of the material piles in the stockyard. The connecting ends of the mounting assemblies are each connected with the radar assembly 1. The radar assembly 1 can acquire point cloud data of the material piles in the detection range. The plurality of radar assemblies 1 are each in communication connection with the edge intelligent terminal. The edge intelligent terminal can calculate corresponding volume data based on the point cloud data of each material pile. The edge intelligent terminal is in communication connection with the supervision platform. The supervision platform can acquire the volume data of all the material piles in the stockyard and display the volume data through a display terminal, so as to realize real-time supervision of the material pile inventory in the stockyard.

[0042] In some embodiments, the radar assembly 1 is mounted on the connecting end of the mounting assembly through a rotating holder, which can drive the radar assembly 1 to rotate. The radar assembly 1 includes a millimeter wave radar 2 and a laser radar 3. If the dust concentration in the silo is high, the millimeter wave radar 2 is selected. If the dust concentration in the silo is low, the laser radar 3 is selected.

[0043] Further, in the embodiment, the plurality of radar assemblies 1 are started according to the formation of the material pile. If the measured target material pile is a regular material pile, the radar assembly 1 corresponding to the material pile is started, and the remaining radar assemblies 1 do not need to be started, so as to reduce the monitoring power consumption. If the measured target material pile is an irregular material pile, the plurality of radar assemblies 1 arranged on the periphery of the material pile are started, so that the plurality of radar assemblies 1 can scan the material pile from different angles to realize mutual blind complement. Specifically, the incidence angle of the radar assembly 1 is suggested to be less than 60°, and the on-site material pile height needs to be considered. The radar installation height and the effective detection area are shown in the following table:

[0044] Radar mounting height Effective detection range (radius) 10m 12m 12m 15m 14m 18m 16m 20m 18m 22m 20m 25m 25m 28m 30m 30m

[0045] Table 1: Radar installation height and effective detection area

[0046] Further, the millimeter wave radar 2 used in the embodiment is composed of a transmitter, a receiver, a motor and the like. By transmitting electromagnetic waves, the electromagnetic waves are reflected by the target object, the radar receives the target reflection signal for data processing, the distance and azimuth information between the target and the radar are obtained, the 360° scanning is realized through the motor rotation, the high-density point cloud data is generated to realize target imaging. The millimeter wave radar 2 adopts 80GHz FMCW technology, has high resolution, reliable environmental adaptability and high-precision detection capability, is not affected by dust, light, rain and the like, and has good imaging effect.

[0047] Further, the laser radar 3 used in the embodiment can realize static target detection in a space range, can accurately measure the material type, volume and material level of bulk solid, powder and the like in real time, and can be used in a scene with low dust concentration. The laser detection method has high detection accuracy, and through two-dimensional axial scanning, target high-precision imaging is realized, the farthest imaging radius is 110m@10% reflectivity, point cloud data is quickly formed and output.

[0048] In some embodiments, a power distribution box is provided in the site of the silo, the power distribution box is electrically connected with the radar assembly 1, and the power distribution box is used to supply power to the radar assembly 1. Specifically, the radar assembly 1 is connected with a switch through a network cable, and is in communication connection with the edge intelligent terminal through the switch. The 24V power supply line is directly connected with the radar assembly 1 on the silo site, and the power distribution box is provided with an adapter, which can convert 220V alternating current power into 24V direct current power, and then the radar is connected through the adapter. The power distribution box can be placed at a position convenient for installation, and it is recommended that the connection line between the power distribution box and the radar assembly 1 is less than 100 meters.

[0049] In some embodiments, the installation assembly includes a horizontal rod, a telescopic support, a hoop and a standard flange. If the silo is a shed structure, the telescopic support is fixed on the horizontal rod through a plurality of hoops, and the radar assembly 1 is installed at the end of the telescopic support. The telescopic support can be adjusted in length according to the height of the material pile. If there is a load-bearing beam or a metal frame blocking the installation position, the radar assembly 1 can be lowered by telescoping to achieve better testing results. If the silo is a silo or a tank, the radar assembly 1 is installed and fixed through the standard flange, and the standard flange directly adapts to the DN250 flange hole.

[0050] In some embodiments, the edge intelligent terminal can also calculate the corresponding height data based on the point cloud data of each material pile. The edge intelligent terminal is internally provided with a material pile height threshold. If the height data of the material pile is greater than the material pile height threshold, a height overrun early warning is performed on the display terminal of the supervision platform.

[0051] Further, the edge intelligent terminal can also perform image stitching based on the point cloud data of a plurality of radar assemblies 1, and present a three-dimensional modeling effect diagram on the display terminal of the supervision platform.

[0052] Further, the edge intelligent terminal in this embodiment is a high-performance material pile volume measurement host, which is responsible for reading the point cloud data of the imaging radar detector and processing the data using high-performance algorithms to output the volume of the material pile and a three-dimensional modeling effect diagram. The edge intelligent terminal supports 8 radar access and supports position calibration of each radar.

[0053] Embodiment two:

[0054] This embodiment is a layout structure of a material pile volume monitoring device in a silo, which applies the material pile volume monitoring device in embodiment one to a semi-finished product material pile yard, a mine side mixed material pile yard, a wharf side mixed material pile yard, a rod mill adjustment material pile yard, a land finished product material pile yard and a wharf side machine-made sand pile yard.

[0055] (1) Semi-finished product material pile yard

[0056] For example, Figure 2As shown, in this embodiment, the semi-finished product storage yard is 119m long and 60m wide. The material throwing height of the A03 / A04 belt conveyors is 30m. The entire scene requires two millimeter-wave radars 2 for imaging and stitching. The millimeter-wave radars 2 are powered by a 220V to 24V adapter and connected to a switch via a network cable. The millimeter-wave radars 2 are vertically suspended downwards, ensuring the radars are mounted horizontally as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, it can also be placed in the on-site weak current box under special operating conditions.

[0057] (2) Mine-side mixed material stockpile

[0058] like Figures 3 to 5 As shown, in this embodiment, the mine-side mixed material stockpile has a long, narrow structure, measuring 220m x 105m, with two rows of material placement platforms in the middle, each 26m high. Ten millimeter-wave radars (2) are needed for imaging and stitching to cover the entire area. The radars are installed in two rows on either side of the middle material placement platform. Since the platform may partially obstruct the view, the radars are installed in a crisscross pattern on the left and right sides of the platform. The radars are powered via a 220V to 24V adapter and connected to a network switch via a network cable. The millimeter-wave radars (2) are vertically suspended downwards, ensuring a horizontal installation as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, in special circumstances, it can also be placed in the on-site low-voltage distribution box.

[0059] (3) Mixed material storage yard on the side of the wharf

[0060] like Figure 6 As shown, in this embodiment, the mixed material storage yard on the wharf side has a long, narrow structure, measuring 262m x 83m, with two rows of material placement platforms in the middle, each 26m high. Five millimeter-wave radars (2) are used for imaging and stitching to cover the entire area. Two rows of material placement tracks are used on site, with the radars installed on both sides of the tracks. Since the material placement platforms may partially obstruct the view, the radars need to be installed in a crisscross pattern on the platforms. The radars are powered via a 220V to 24V adapter and connected to a network switch via a network cable. The millimeter-wave radars (2) are suspended vertically downwards, ensuring a horizontal installation as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, under special circumstances, it can also be placed in the on-site low-voltage distribution box.

[0061] (4) Rod mill conditioning stockpile

[0062] like Figure 7As shown, in this embodiment, the rod mill conditioning material stockpile is a long strip structure, with dimensions of 103m x 63m, and a material placing trolley in the middle. The material placing platform is 22.5m high. Two LiDARs 3 are required for imaging and stitching to cover the entire area. A row of material placing tracks is used on site, with the LiDARs installed on both sides of the platform. Since the material placing platform may partially obstruct the view, the LiDARs need to be installed in a crisscross pattern on the platform. The LiDARs are powered via a 220V to 24V adapter and connected to a network switch via a network cable. The LiDARs 3 are suspended vertically downwards, ensuring a horizontal installation as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, under special circumstances, it can also be placed in the on-site low-voltage distribution box.

[0063] (5) Land-based finished material storage yard

[0064] like Figure 8 As shown, in this embodiment, the land-based finished material storage yard consists of two long, narrow structures. One structure measures 144m x 70m with a 25m high placement platform; the other measures 275m x 156m with three placement platform heights: 25m, 28m, and 30m. Thirteen LiDAR units (3) are required for imaging and stitching to cover the entire area. The LiDARs are mounted on both sides of the track. Due to potential obstructions from the placement platform, the LiDARs need to be installed in a crisscross pattern on the platform. The LiDARs are powered via a 220V to 24V adapter and connected to a network switch via a network cable. The LiDARs (3) are suspended vertically downwards, ensuring a horizontal installation as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, in special circumstances, it can also be placed in an on-site low-voltage distribution box.

[0065] (6) Manufactured sand storage yard on the side of the wharf

[0066] like Figure 9 As shown, in this embodiment, the manufactured sand storage yard on the wharf side has a long, narrow structure, measuring 280m x 65m and 22m in height. The entire scene requires five LiDAR units 3 for imaging and stitching. The LiDARs are powered via 220V to 24V adapters and connected to a switch via network cables. The LiDAR units 3 are vertically suspended downwards, ensuring horizontal mounting as much as possible. It is recommended that the edge intelligent terminal be placed in a server room; however, under special circumstances, it can also be placed in the on-site low-voltage distribution box.

[0067] Example 3:

[0068] like Figure 10As shown, the embodiment is a stockpile volume monitoring system in a stockyard, which comprises a plurality of stockpile yards, and the installation assembly, the radar assembly 1 and the edge intelligent terminal of the embodiment one are correspondingly arranged in the plurality of stockpile yards, and the edge intelligent terminals of the stockpile yards are connected to the production supervision platform through the switch, so that the production supervision platform is used for real-time supervision of the stockyard storage capacity of each stockpile yard. Specifically, the plurality of stockpile yards comprises the semi-finished product stockpile yard, the mine side mixed stockpile yard, the wharf side mixed stockpile yard, the rod grinding adjustment stockpile yard, the land finished product stockpile yard and the wharf side machine-made sand stockpile yard as described in the embodiment two.

[0069] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for monitoring the volume of material piles inside a silo, characterized in that, The application relates to a material yard volume monitoring system. A plurality of installation assemblies are arranged above material piles in a stockyard, and the connecting ends of the installation assemblies correspond to the positions of the material piles in the stockyard; A plurality of radar assemblies (1) are arranged at the connecting ends of the installation assemblies, and the radar assemblies (1) can obtain point cloud data of the material piles in a detection range; An edge intelligent terminal is in communication connection with the radar assemblies (1), and can calculate corresponding volume data based on the point cloud data of each material pile; A supervision platform is in communication connection with the edge intelligent terminal, obtains the volume data of all the material piles in the stockyard, and displays the volume data on a display terminal to realize real-time supervision of the stockyard material pile inventory.

2. A material pile volume monitoring apparatus in a silo according to claim 1, characterized in that: The radar assemblies (1) are installed at the connecting ends of the installation assemblies through rotating gimbals, the rotating gimbals can drive the radar assemblies (1) to rotate and detect, the radar assemblies (1) comprise millimeter wave radars (2) and laser radars (3), if the dust concentration in the stockyard is high, the millimeter wave radars (2) are selected, and if the dust concentration in the stockyard is low, the laser radars (3) are selected.

3. A device for monitoring the volume of a material pile in a silo according to claim 2, characterised in that: If the measured target material pile is an irregular material pile, a plurality of radar assemblies (1) are arranged on the material pile, so that the plurality of radar assemblies (1) can scan the material pile from different angles to realize mutual blind complementation.

4. A material pile volume monitoring apparatus in a silo according to claim 2, characterized in that: The incidence angle of the radar assemblies (1) is not more than 60 degrees.

5. A material pile volume monitoring apparatus in a silo according to claim 1, characterized in that: A power distribution box is arranged in the site of the stockyard, the power distribution box is in electrical connection with the radar assemblies (1), and the power distribution box is used for supplying power to the radar assemblies (1).

6. A material pile volume monitoring apparatus in a silo according to claim 1, characterized in that: The installation assembly comprises a horizontal rod, a telescopic support, a hoop and a standard flange, if the stockyard is a shed structure, the telescopic support is fixed on the horizontal rod through the hoop, the radar assemblies (1) are installed at the end of the telescopic support, and the telescopic support can be telescopically adjusted according to the height of the material pile; If the stockyard is a silo or a tank, the radar assemblies (1) are installed and fixed through the standard flange.

7. A material pile volume monitoring apparatus in a silo according to claim 1, characterized in that: The edge intelligent terminal can also calculate corresponding height data based on the point cloud data of each material pile, a material pile height threshold is arranged in the edge intelligent terminal, if the height data of the material pile is greater than the material pile height threshold, a height overrun early warning is given on the display terminal of the supervision platform.

8. A material pile volume monitoring apparatus in a silo according to claim 1, characterized in that: The edge intelligent terminal can also image splice based on the point cloud data of the plurality of radar assemblies (1), and a three-dimensional modeling effect picture is presented on the display terminal of the supervision platform.

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