阅读说明：本技术 一种筒仓堆料高度监测的装置、系统和方法 (Device, system and method for monitoring silo stacking height ) 是由 张石 刘志文 李亚锋 鲁佶 陈俊麟 于 2020-06-30 设计创作，主要内容包括：本发明涉及自动监测领域,特别是涉及一种筒仓堆料高度监测的装置、系统和方法。主要包括：至少一个数据处理模块和至少一组监测模块；每组监测模块包括至少一个激光探测组件和外壳,激光探测组件气密封装在外壳之内,激光探测组件的电气接口作为监测模块的外部电气接口使用,外壳上包括透光窗口和阀门,透光窗口和激光探测组件的监测光出口及反射光接收口位置对应,阀门位于透光窗口外侧,阀门关闭时透光窗口被阀门全部遮盖,阀门开启时透光窗口暴露于外部；数据处理模块与每组监测模块的外部电气接口的相应端口耦合。本发明可以通过多个激光测距模块方便准确的获取堆料顶端不同位置的高度,从而对堆料的整体高度进行监测。(The invention relates to the field of automatic monitoring, in particular to a device, a system and a method for monitoring silo stacking height. The method mainly comprises the following steps: at least one data processing module and at least one group of monitoring modules; each group of monitoring modules comprises at least one laser detection assembly and a shell, the laser detection assembly is hermetically sealed in the shell, an electrical interface of the laser detection assembly is used as an external electrical interface of the monitoring module, the shell comprises a light-transmitting window and a valve, the light-transmitting window corresponds to a monitoring light outlet and a reflected light receiving opening of the laser detection assembly in position, the valve is positioned outside the light-transmitting window, the light-transmitting window is completely covered by the valve when the valve is closed, and the light-transmitting window is exposed to the outside when the valve is opened; the data processing module is coupled with a respective port of the external electrical interface of each set of monitoring modules. The invention can conveniently and accurately acquire the heights of different positions of the top end of the stacking material through a plurality of laser ranging modules, thereby monitoring the whole height of the stacking material.)

1. A silo windrow height monitoring device, characterized in that:

comprises at least one data processing module (10) and at least one group of monitoring modules (20);

each group of monitoring modules (20) comprises at least one laser detection assembly (21) and a shell (22), the laser detection assembly (21) is hermetically sealed in the shell (22), an electrical interface of the laser detection assembly (21) is used as an external electrical interface of the monitoring module (20), the shell (22) comprises a light-transmitting window (22-1) and a valve (22-2), the positions of a monitoring light outlet and a reflected light receiving port of the light-transmitting window (22-1) and the laser detection assembly (21) correspond to each other, the valve (22-2) is positioned outside the light-transmitting window (22-1), the light-transmitting window (22-1) is completely covered by the valve (22-2) when the valve (22-2) is closed, and the light-transmitting window (22-1) is exposed to the outside when the valve (22-2) is opened;

the data processing modules (10) are coupled to respective ports of the external electrical interface of each set of monitoring modules (20).

2. The apparatus of claim 1, wherein the apparatus comprises:

the device also comprises a light source (30) and a light splitter (40);

the optical splitter (40) comprises an input port and at least one output port, wherein the number of the output ports is not less than that of the laser detection assemblies (21);

the emergent light of the light source (30) is coupled with the input port light path of the optical splitter (40);

the laser detection assembly (21) comprises a light emitting component (21-1) and a light receiving component (21-2), wherein an input port of the light emitting component (21-1) of each laser detection assembly (21) is optically coupled with one output port of the optical splitter (40) to serve as an optical path input port of the laser detection assembly (21), the light receiving component (21-2) is optically coupled with a reflection optical path of light emitted by the light emitting component (21-1), and an electrical interface of the light receiving component (21-2) serves as an electrical interface of the laser detection assembly (21).

3. The apparatus of claim 1, wherein the apparatus comprises:

the laser detection assembly (21) further comprises a cleaning component (22-3), wherein the cleaning component (22-3) is movably fixed on the outer side of the light-transmitting window (22-1) and is in translational motion close to the light-transmitting window (22-1) so as to clean the outer side of the light-transmitting window (22-1).

4. A system for monitoring silo windrow height, comprising:

monitoring device (1), monitoring control device (2) and silo (3) comprising a device design for silo stockpiling height monitoring as set forth in any one of claims 1 to 3;

a monitoring module (20) in the monitoring device (1) is arranged at the top in the silo (3), and a light-transmitting window (22-1) of the monitoring module (20) faces to the top surface of the stockpile in the silo (3);

the monitoring control device (2) and the data processing module (10) in the monitoring device (1) carry out interaction of data signals and control signals, so that the stockpiling height of the silo (3) can be analyzed and monitored through the data obtained by the monitoring device (1).

5. The system of silo windrow height monitoring of claim 4, wherein:

the shape of the distribution region of the monitoring modules (20) is consistent with that of the top of the silo (3), and the distance between every two monitoring modules (20) positioned in the range of the preset central region is smaller than that between every two monitoring modules (20) positioned outside the range of the preset central region.

6. The system of silo windrow height monitoring of claim 4, wherein:

the wiring between the monitoring device (1) and the monitoring control device (2) is an explosion-proof cable.

7. A method of monitoring silo windrow height, characterized by:

the system for silo stockpiling height monitoring as set forth in any one of claims 4-6 deploying a monitoring module (20) in the silo (3);

the monitoring module (20) sends a monitoring optical signal to the top of the stockpile;

the monitoring module (20) acquires a reflected light signal obtained by reflecting the monitoring light signal by the top of the stockpile;

the data processing module (10) obtains the height data of the top of the stockpile according to the reflected light signal data of all the monitoring modules (20);

the monitoring control device (2) judges the state of the top height of the stockpile according to the top height data of the stockpile obtained by the data processing module (10).

8. A method of silo pile height monitoring as defined in claim 7 wherein the obtaining of pile top height data comprises:

and fitting the morphology of the top of the stockpile according to the horizontal positions of the different monitoring modules (20) and the acquired reflected light signal data to acquire three-dimensional data of the morphology of the top of the stockpile.

9. The method of silo windrow height monitoring of claim 7, wherein the data processing module (10) obtains reflected light signal data for all monitoring modules (20) including:

the data processing module (10) respectively calculates the stacking height of the corresponding position of each monitoring module (20) according to the time difference between the sending time of the monitoring light of each monitoring module (20) and the returning time of the reflected light.

10. The method of silo windrow height monitoring of claim 7, further comprising:

when the monitoring module (20) is required to send a monitoring optical signal to the top of the stockpile and the monitoring module (20) is required to acquire a reflected optical signal, the monitoring control device (2) starts a valve (22-2) on the monitoring module (20).

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of automatic monitoring, in particular to a device, a system and a method for monitoring silo stacking height.

[ background of the invention ]

The closed silo is adopted to store the materials, so that the secondary pollution to the surrounding environment in the storage process can be effectively reduced, the material waste in the turnover link can be reduced, and the problems of material quality reduction, large occupied area, difficult management and the like in the open-air stacking process are solved. However, when the materials are stored in the closed silo, potential safety hazards may occur if the stacking height is too high. In order to realize safe storage and production of materials, the silo stacking height needs to be monitored in real time, and the stored information is fed back to a control system.

At present, the main silo stockpiling monitoring technical methods comprise a capacitance type measuring method, a weight type measuring method, a nuclear radiation type measuring method, an ultrasonic type measuring method, an electrode type measuring method and the like. The capacitance type measuring method is simple in structure, but requires stable dielectric constant of materials, electrodes are easy to adhere to the materials and are damaged, and the capacitance type measuring method is only suitable for silos with small water content, stable chemical properties and small size. The heavy hammer type measurement method requires that the surface of the material must be contacted with a heavy hammer in the measurement process, and has poor reliability, high failure rate and low automation degree. The nuclear radiation type measurement method has high protection requirement due to the existence of radiation, and is expensive when continuously measuring. The ultrasonic measurement method has the advantages of large measurement blind area, limited measurement depth, easy influence of dust, easy influence of factors such as temperature, sound pressure and wind power and poor reliability. The electrode type measurement method is easy to cause the instability of the system due to the complex material components and inconsistent resistivity.

In view of this, how to overcome the defects existing in the prior art and solve the defects of poor reliability and the like existing in the existing various measurement methods is a problem to be solved in the technical field.

[ summary of the invention ]

Aiming at the defects or improvement requirements of the prior art, the invention solves the problems of higher requirements on material characteristics, poor measurement stability and the like in the existing measurement method.

The embodiment of the invention adopts the following technical scheme:

in a first aspect, the present invention provides a device for monitoring the silo stacking height, which specifically comprises: comprises at least one data processing module 10 and at least one group of monitoring modules 20; each group of monitoring modules 20 comprises at least one laser detection assembly 21 and a shell 22, the laser detection assembly 21 is hermetically sealed in the shell 22, an electrical interface of the laser detection assembly 21 is used as an external electrical interface of the monitoring module 20, the shell 22 comprises a light-transmitting window 22-1 and a valve 22-2, the light-transmitting window 22-1 corresponds to a monitoring light outlet and a reflected light receiving port of the laser detection assembly 21 in position, the valve 22-2 is positioned outside the light-transmitting window 22-1, the light-transmitting window 22-1 is completely covered by the valve 22-2 when the valve 22-2 is closed, and the light-transmitting window 22-1 is exposed to the outside when the valve 22-2 is opened; the data processing module 10 is coupled to a respective port of the external electrical interface of each set of monitoring modules 20.

Preferably, the device further comprises a light source 30 and a light splitter 40; the optical splitter 40 comprises an input port and at least one output port, wherein the number of the output ports is not less than the number of the laser detection assemblies 21; the emergent light of the light source 30 is coupled with the input port optical path of the optical splitter 40; the laser detection assembly 21 comprises a light emitting component 21-1 and a light receiving component 21-2, wherein an input port of the light emitting component 21-1 of each laser detection assembly 21 is optically coupled with an output port of the optical splitter 40 to serve as an input port of the optical path of the laser detection assembly 21, the light receiving component 21-2 is optically coupled with a reflected optical path of light emitted by the light emitting component 21-1, and an electrical interface of the light receiving component 21-2 serves as an electrical interface of the laser detection assembly 21.

Preferably, the laser detection assembly 21 further comprises a cleaning member 22-3, wherein the cleaning member 22-3 is movably fixed outside the light-transmissive window 22-1 and moves in a translational manner close to the light-transmissive window 22-1 so as to clean the outside of the light-transmissive window 22-1.

In a second aspect, the present invention also provides a system for monitoring silo windrow height, comprising: the monitoring device 1, the monitoring control device 2 and the silo 3 are designed according to the device for monitoring the silo stockpiling height provided by the first aspect; the monitoring module 20 in the monitoring device 1 is arranged at the top in the silo 3, and the light-transmitting window 22-1 of the monitoring module 20 faces the top surface of the stockpile in the silo 3; the monitoring control device 2 interacts with the data processing module 10 in the monitoring device 1 to perform data signal and control signal interaction, so that the stockpiling height of the silo 3 can be analyzed and monitored through the data acquired by the monitoring device 1.

Preferably, the shape of the distribution region of the monitoring modules 20 is the same as the shape of the top of the silo 3, and the distance between every two monitoring modules 20 located within the preset central region is smaller than the distance between every two monitoring modules 20 located outside the preset central region.

Preferably, the connection between the monitoring device 1 and the monitoring control device 2 is an explosion-proof cable.

In a third aspect, the present invention also provides a method of monitoring silo windrow height, comprising: the system for silo stockpiling height monitoring proposed according to the second aspect deploys a monitoring module 20 in the silo 3; the monitoring module 20 sends a monitoring optical signal to the top of the stacking material; the monitoring module 20 acquires a reflected light signal obtained by reflecting the monitoring light signal by the top of the stockpile; the data processing module 10 obtains the height data of the top of the piled material according to the reflected light signal data of all the monitoring modules 20; the monitoring control device 2 judges the state of the top height of the pile according to the top height data of the pile obtained by the data processing module 10.

Preferably, obtaining the windrow top height data comprises: and fitting the shape of the top of the piled material according to the horizontal positions of the different monitoring modules 20 and the acquired reflected light signal data to acquire three-dimensional data of the shape of the top of the piled material.

Preferably, the data processing module 10 acquires the reflected light signal data of all the monitoring modules 20, including: the data processing module 10 calculates the stacking height of the corresponding position of each monitoring module 20 according to the time difference between the emitting time of the monitoring light and the returning time of the reflected light of each monitoring module 20.

Preferably, the method further comprises the following steps: when the monitoring module 20 is required to send a monitoring optical signal to the top of the stockpile and the monitoring module 20 is required to acquire a reflected optical signal, the monitoring control device 2 opens a valve 22-2 on the monitoring module 20.

Compared with the prior art, the embodiment of the invention has the beneficial effects that: the utility model provides a device of monitoring of silo windrow height, the height of the convenient accurate acquisition windrow top different positions of through a plurality of laser rangefinder modules to monitor the whole height of windrow. Still through carrying out airtight encapsulation to laser rangefinder module to set up valve and cleaning brush in airtight encapsulated light-transmitting window department, reduce the influence of external environment to the monitoring accuracy.

Furthermore, the invention provides a system for monitoring the height of the silo stockpile, which combines the device for monitoring the height of the silo stockpile with a main control system, arranges the distance measuring module at a proper position in the silo, and more accurately fits the three-dimensional shape of the surface of the stockpile to obtain more accurate monitoring data.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an apparatus for monitoring the height of a silo dump according to an embodiment of the present invention;

fig. 2 is a schematic system structure diagram of a data processing module in a silo stockpiling height monitoring device according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of another apparatus for monitoring the silo material level according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of another apparatus for monitoring the silo material level according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of another apparatus for monitoring the silo windrow height according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of another apparatus for monitoring the silo windrow height according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a system for monitoring the height of a silo dump according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a manner of monitoring modules in a silo stockpiling height monitoring system according to an embodiment of the present invention;

fig. 9 is a schematic diagram of another monitoring module in a silo stockpiling height monitoring system according to an embodiment of the present invention;

figure 10 is a flow chart of a method of monitoring silo windrow height according to an embodiment of the present invention;

wherein the reference numbers are as follows:

1: a monitoring device; 2: monitoring a control device; 3: a silo;

10: data processing module, 11: processor, 12: a memory; 20: monitoring module, 21: laser detection assembly, 21-1: light emitting part, 21-2 light receiving part, 22: housing, 22-1 light transmissive window, 22-2: valve, 22-3: cleaning member, 22-4: an electric motor; 30: a light source; 40: a light splitter.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention is a system structure of a specific function system, so the functional logic relationship of each structural module is mainly explained in the specific embodiment, and the specific software and hardware implementation is not limited.

In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The invention will be described in detail below with reference to the figures and examples.