WO2015154638A1 - Material field weight detection method and system - Google Patents
Material field weight detection method and system Download PDFInfo
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- WO2015154638A1 WO2015154638A1 PCT/CN2015/075779 CN2015075779W WO2015154638A1 WO 2015154638 A1 WO2015154638 A1 WO 2015154638A1 CN 2015075779 W CN2015075779 W CN 2015075779W WO 2015154638 A1 WO2015154638 A1 WO 2015154638A1
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- stockyard
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
- G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
Definitions
- the invention mainly relates to the field of inventory monitoring equipment, and particularly relates to a dynamic disk material monitoring method and system based on pressure sensing.
- the conventional laser disk coal measuring device In order to accurately obtain the coal storage capacity of the thermal power plant and save power generation costs, some practitioners have proposed using a laser disk coal measuring device.
- the system has greatly improved the labor intensity of workers, reduced the measurement error caused by human factors, and realized the automatic coal mining of coal yards.
- the conventional laser disk coal measuring device also has the following disadvantages: 1. Low precision.
- the current technology of the laser disk coal meter is more portable than the fixed type of coal pile distribution applicability and measurement range adaptability, the basic technical principle is still the process of taking points, modeling and calculation. In terms of taking points, since the number of points is limited, the number of points is limited, so the systematic error is large; on the other hand, if the number of points is too large, the measurement efficiency is low.
- any theoretical model is just an approximate simulation method.
- the shape and distribution shape of the coal pile are randomly and irregularly varied, and the system also has large errors that cannot be eliminated.
- the error of the calculated volume model can be neglected, there is also a large systematic error in estimating the density of the coal pile. Since the whole system integrates all the above subsystem errors, it directly leads to the lack of precision of the conventional laser disk coal device. Therefore, many power plants found that after the laser disk coal instrument was purchased, the accuracy of the actual inventory results was far from the nominal accuracy of some manufacturers. 2, the reliability is not high.
- the working process of the traditional laser disk coal instrument is complex, including coal pile taking points (including distance measurement, direction angle measurement, vertical angle measurement), data conversion (converted to three-dimensional coordinates), three-dimensional modeling, volume calculation, and cumbersome Work process guide
- the reliability is not high. 3.
- Adaptability is not high. The spread of laser light in the air during rain, snow, dust and haze is easily affected, which affects the measurement of points, distances and angles. Therefore, the measurement results of the laser disk coal meter under the above environmental conditions are very unreliable and the environmental adaptability is not high. 4. Low efficiency.
- the technical problem to be solved by the present invention is that the present invention provides a method for detecting the weight of a stockyard with simple principle, convenient operation, good stability, high precision, wide application range and high efficiency, and the technical problems existing in the prior art. system.
- the present invention adopts the following technical solutions:
- a stockyard weight detecting method is provided with a pressure sensing device on a foundation at a stockyard, wherein the pressure sensing device is used to detect the pressure on the active area in real time and convert the pressure into the weight of the material on the stockyard. .
- the material field is divided into a plurality of detecting units, and the pressure sensing device is arranged in an array form, that is, composed of a plurality of array units, and each array unit corresponds to one detecting unit. .
- thermometer is placed around each pressure sensing device for temperature compensation and correction of measurement data.
- the pressure sensing device is a vibrating wire earth pressure gauge or a fiber optic sensor.
- the invention further provides a stockyard weight detecting system comprising a pressure sensing assembly disposed on a foundation at a stockyard, the pressure sensing assembly detecting a pressure on an active area and converting the pressure into a material on the stockyard weight.
- the pressure sensing assembly includes a plurality of pressure sensors disposed on a foundation; the stock field is divided into a plurality of detecting units, and each pressure sensor corresponds to one detecting unit .
- a flat plate is placed in the center of the detecting unit, the pressure sensor is mounted on the flat plate, and after the pressure sensor is fixed on the flat plate, the particulate matter is backfilled within the detection unit, and the backfilled particulate matter is backfilled.
- the thickness is higher than the pressure sensor; the surface of the backfilled particles is provided with a cover layer.
- the stress sensor is fixed on the foundation by a steel plate, and is filled with a fine sand layer, and the top of the fine sand layer is layered and tamped with a multi-layer coal gangue layer.
- thermometer is installed around each of the pressure sensors for temperature compensation and correction of measurement data.
- a plurality of the pressure sensors are arranged in a lateral or longitudinal direction along a boundary of the material field, and the pressure sensors in each of the lateral or longitudinal directions are connected in series to form one detection line; at least one of each detection line is disposed.
- the thermometer is used as a temperature compensation.
- the invention arranges the pressure sensor at the stockyard, and the changed light signal generated by the same is transmitted back to the computer through the optical fiber for analysis and processing, and the total material quality is accumulated from the local material weight.
- the pressure sensing device can accurately, timely and efficiently grasp the information of the stock quantity at the stockyard, and provides a basis for the inventory intelligent control.
- the system is stable.
- the system of the invention pre-lays the optical fiber network "once" in the stockyard for long-term use, and the system stability and reliability are high in the life cycle, and the rain, snow, dust and haze climate environment factors have no influence on the measurement system, Make accurate measurements around the clock.
- the fiber optic sensor is a passive component that simplifies the system structure.
- the invention improves the precision of collecting data, and greatly reduces the systematic error caused by the data processing of the software system, so that the precision of the technology is improved qualitatively compared with the traditional coal-sizing device. Moreover, the information transmission between the sensor and the software system is continuously performed, which can ensure the real-time performance of the data, and can implement on-line monitoring of materials.
- the system of the invention has the advantages of “one time” system adjustment, “direct” quality acquisition, and “real time” information update, so that the technology is free from the conventional adjustment and debugging of the system in the conventional mode, and the disc circulation period is too long. Such problems have greatly improved the efficiency and can be used for online dynamic monitoring and early warning of total materials, inflow and outflow.
- Figure 1 is a schematic flow diagram of the process of the present invention.
- FIG. 2 is a schematic view showing the principle of the frame structure of the system of the present invention.
- Figure 3 is a schematic illustration of the installation of a fiber optic sensor in the system of the present invention.
- Fig. 4 is a schematic view showing the principle of a frame structure in another example of the present invention.
- Figure 5 is a schematic illustration of another manner of installation of the stress sensor in the system of the present invention.
- Fig. 6 is a schematic view showing the principle of a frame structure in still another example of the present invention.
- the method for detecting the yard weight of the invention is particularly suitable for dynamic real-time monitoring and management of the stockyard.
- a pressure sensing device is placed on the foundation 7 at the stockyard.
- the pressure sensing device is used to detect the pressure on the active area in real time and convert the pressure into the weight of the material 1 on the stockyard.
- the invention can be applied to various stockyards, such as large artificial gravel yards, port warehouses, artificial piles, etc., in order to realize real-time weighing of the stockyard and the stacking hills.
- the pressure sensing device usually has two types of vibrating wire type and fiber optic sensor.
- a fiber optic sensor is selected as an example.
- the fiber optic sensor can select more than one fiber optic pressure gauge.
- the fiber optic pressure gauge can be completely solved with its high sensitivity, large range, quasi-distribution detection, stable and durable durability, and corrosion resistance suitable for long-term detection. Manual weighing of large stockyards, warehouses, and artificial mountains.
- the fiber optic pressure gauge can adopt Bragg grating FBG structure or Brillouin Brillouin scattering or Raman Raman scattering structure according to actual needs.
- the present embodiment further divides the stock field into a plurality of detecting units 9, and the arrangement of the optical fiber sensing components is in the form of an array, that is, composed of a plurality of array units, and each array unit corresponds to one detecting unit.
- An array unit is a fiber grating pressure gauge, which realizes equalization and equalization of the material yard, and improves the accuracy of the measured value.
- all of the detection units 9 are of equal size.
- a site having a length and a width of 50 m ⁇ 100 m is taken as an example, and a site of 50 m ⁇ 100 m is divided into a plurality of detecting units 9 according to a specification of 5 m ⁇ 5 m.
- an array unit of fiber sensing components eg, fiber optic sensors
- the optical fiber sensor 2 Since the optical fiber sensor 2 is sensitive to temperature, in the long-term stockyard, warehouse, and artificial mountain weight detection, the optical fiber sensor 2 may be subjected to measurement variations due to changes in ambient temperature, and the present invention further provides a temperature compensation scheme to correct the measurement data. That is, an optical fiber thermometer 3 is disposed in the peripheral radius of each of the optical fiber sensors 2 for temperature compensation, and the measurement data is corrected.
- the internal principle structure of the fiber optic thermometer 3 is the same as that of the fiber stress sensor, except that it is not affected by the stress and is only affected by the temperature. Change the wavelength affected by temperature, corresponding to the fiber stress sensor Line compensation.
- other temperature measurement methods can be used to measure the temperature of the fiber stress sensor.
- the present invention further provides a stockyard weight detecting system, comprising a pressure sensing component disposed on a foundation 7 at a stockyard.
- the pressure sensing component generally has two types of vibrating wire earth pressure gauges and fiber optic sensors.
- a fiber optic sensor is selected as an example.
- the fiber optic sensing assembly detects the pressure on the active area in real time and converts the pressure to the weight of material 1 on the stockyard.
- the optical fiber sensing component includes a plurality of optical fiber sensors 2 (eg, a fiber grating earth pressure gauge).
- the fiber optic sensor 2 is disposed on the artificially treated foundation 7 (eg, artificially compacted soil floor, concrete floor).
- a steel plate (for example, 20 cm ⁇ 20 cm ⁇ 3 cm) having a length, a width, and a thickness is placed in the center of the detecting unit 9, and the optical fiber sensor 2 is mounted thereon, and is fixed thereto by means of potting or electric welding.
- the steel plate is placed horizontally in the center of the detecting unit 9.
- the particulate matter is backfilled within the range of the detection unit 9, and the backfilled particulate matter 8 should be thicker than the fiber optic sensor 2.
- the backfilled particulate matter 8 is a sand body.
- a pressure sensor (such as fiber optic sensor 2 or other type) may also be fixed to the foundation 7 by a steel plate 11 filled with a fine sand layer 12, and the top of the fine sand layer 12 is used.
- the multi-layer coal gangue layer 13 is layered and tamped.
- a fiber optic thermometer 3 is disposed in the peripheral radius of each of the optical fiber sensors 2 for temperature compensation and correction measurement data. Since the optical fiber sensor 2 is sensitive to temperature, in the long-term stockyard, warehouse, and artificial mountain weight detection, the optical fiber sensor 2 may be subjected to measurement variations due to changes in ambient temperature, and the present invention further provides a temperature compensation scheme to correct the measurement data.
- a plurality of optical fiber sensors 2 are arranged in the lateral or longitudinal direction of the boundary of the stockyard (warehouse), and the optical fiber sensors 2 in each of the lateral or longitudinal directions are connected in series to form a detecting line 10.
- one fiber optic thermometer 3 is arranged for each detection line 10 as temperature compensation, that is, the corresponding fiber optic thermometer 3 is connected in series to form a temperature compensation line through the optical cable.
- the detection room 5 can also be established according to the scene of the material yard, and the detection line 10 used is led to the detection room 5 by the optical cable lead, and the demodulation device is connected to realize the integration of the detection system.
- the stockyard weight detecting system further includes a signal transmitting unit 16 and a signal receiving unit 17, respectively, and the signal transmitting unit 16 and the signal receiving unit 17 are respectively disposed at opposite ends of a group of optical fiber sensors 2 connected in series, and are respectively connected To the detection chamber 5.
- a plurality of fiber optic sensors 2 are arranged in a lateral or longitudinal direction along the boundary of the stockyard (warehouse), and the last fiber optic sensor after each of the transverse or longitudinal fiber optic sensors 2 are connected in series
- the detection line 10 is directly connected to the detection chamber 5.
- the detection line 10 is a fiber optic cable.
- the pressure sensor is a vibrating wire type earth pressure gauge, and a plurality of vibrating wire earth pressure gauges are arranged along a boundary of a material field (warehouse) in a lateral or longitudinal direction, each The vibrating wire earth pressure gauge is connected to the detection chamber 5 through the detection line 10, respectively.
- the real-time dynamic monitoring of the weight of the stockyard by the system of the present invention includes overall weight dynamic monitoring and local weight dynamic monitoring.
- the minimum area of monitoring of local weight dynamic changes may be one sensor unit area; multiple sensor unit areas may constitute a larger local area; and overall weight dynamic monitoring is based on local weight dynamic monitoring.
- the system of the invention can obtain the dynamic data of the temperature distribution at the bottom of the pile by real-time temperature information collected by the fiber thermometer disposed at the bottom of the pile. This is the basis for real-time temperature correction of the fiber optic pressure sensor, which can improve the measurement accuracy of the fiber pressure sensor, thereby improving the measurement accuracy of the entire system.
- the fiber optic thermometer can also be other types of temperature sensors.
- the pressure sensor is a fiber optic sensor
- the temperature sensor is preferably a fiber optic thermometer.
- the system of the present invention can collect the pressure information of the material on the material by the fiber pressure sensor disposed at the bottom of the pile; calculate the weight of the material carried on the sensor according to the stress-weight calibration function of the sensor; and generate the weight of the yard according to the weight information of each sensor
- the distributed three-dimensional histogram after three-dimensional curve smoothing algorithm and three-dimensional coordinate reconstruction, a three-dimensional map of the weight distribution of the pile can be obtained; according to the specified material reference density, a dynamic three-dimensional volume map of the pile can be generated.
- the system of the invention can record the real-time and continuous material increase/decrease (compared with the previous record) in the time domain in the time domain, and can generate the flow rate statistics of the feed field (increase) and output (decrease) in the unit time.
- the system of the invention performs real-time and continuous monitoring of the total weight of the material in the material yard, compares with the high and low thresholds set by the system, and alarms when the range is exceeded; the optical fiber temperature sensor performs the real-time and continuous bottom temperature of the material yard. The monitoring is compared with the temperature limit set by the system, and an alarm is issued when the range is exceeded.
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Abstract
A material field weight detection method. The method comprises arranging a pressure sensing device (2) on a foundation (7) of a material field, the pressure sensing device (2) being used for detecting the pressure on an action area in real time and converting the pressure into the weight of materials (1) on the material field. A material field weight detection system, comprising a pressure sensing assembly (2) arranged on a foundation (7) of a material field, the pressure sensing assembly (2) being used for detecting the pressure on an action area in real time and converting the pressure into the weight of materials (1) on the material field. The method and system have advantages of simple principle, convenient operation, high stability and precision, wide application range, and high efficiency.
Description
本发明主要涉及到库存监控设备领域，特指一种基于压力传感的动态盘料监控方法及***。The invention mainly relates to the field of inventory monitoring equipment, and particularly relates to a dynamic disk material monitoring method and system based on pressure sensing.
对于仓储、物流等领域而言，如何对库存进行实时监控，是一个至关重要的问题，尤其是对一些不规则物料的库存进行监控，至今都未能有一个合适的办法。如，大型人工砂石料场、港口仓库、人工堆山等，由于体积巨大，无法用常规的检测手段实现料场的人工称重，给货场管理带来不便。For the fields of warehousing, logistics, etc., how to monitor inventory in real time is a crucial issue, especially monitoring the inventory of some irregular materials. So far, there is no suitable way. For example, large artificial sand and gravel yards, port warehouses, artificially piled hills, etc., due to their large size, it is impossible to use conventional testing methods to achieve manual weighing of the stockyard, which brings inconvenience to the yard management.
以电厂用燃煤的库存管理为例，对电厂燃煤的库存进行盘点，作为整个燃料管理***中的一个环节，有着举足轻重的重要性。人们一直在寻求一种方法，可以准确地获得发电厂存煤量。早期人们用推土机将不规则煤堆整形，然后用尺子丈量，计算出煤堆的体积，再乘以煤的比重，得到存煤量，将这样的过程称为“盘煤”。但是，这种方法测量结果误差较大。Taking the inventory management of coal-fired power plants as an example, taking inventory of the coal-fired inventory of power plants is of great importance as a link in the entire fuel management system. People have been looking for a way to accurately obtain the amount of coal stored in a power plant. In the early days, people used bulldozers to shape irregular coal piles, then measured them with a ruler, calculated the volume of the coal piles, and multiplied by the specific gravity of the coal to obtain the amount of coal stored. This process was called “pan coal”. However, this method has a large error in measurement results.
为了准确地获得火电厂存煤量，节省发电成本，有从业者提出了使用激光盘煤测量装置。该***大大改善了工人的劳动强度，减少了人为因素产生的测量误差，实现了煤场的自动化盘煤。但是，现有的激光盘煤测量装置也存在以下不足：1、精度低。目前技术的激光盘煤仪虽然便携式的比固定式的在煤堆分布适用性、测量范围适应性等都有所提高，但是基本的技术原理仍然是取点、建模及计算的过程。在取点方面，由于是间断取点，取点数量又有限，所以***误差较大；另一方面，如果取点数量太大，又会导致测量的效率低下。现存技术只能在以上两方面进行权衡取舍。在建模方面，任何的理论模型都只是一个近似的模拟方法，实际中煤堆的形状和分布形态随机极其不规则，***，***同样存在不可消除的较大的误差。在计算方面，虽然计算体积模型的误差可以忽略，但是对测量煤堆的密度估算同样存在着较大的***误差。由于整个***集合了以上所有的分***误差，直接导致传统的激光盘煤装置精度偏低的不足。所以很多电厂发现，激光盘煤仪买来之后，发现实际盘点结果的精度远远达不到某些厂家标称的精度值。2、可靠性不高。传统激光盘煤仪的工作过程比较复杂，其中包括煤堆取点(包括距离测量、方向角测量、垂直角测量)、数据转换(转换为三维坐标)、三维建模、体积计算环节，繁琐的工作过程导
致可靠性不高。3、适应性不高。激光在雨雪、扬尘及雾霾天气里在空气中的传播容易受到影响，这会影响到取点及距离、角度的等测量。所以激光盘煤仪在以上环境条件下测量结果很不可靠，环境适应性不高。4、效率低。为了使盘煤仪能够达到一定的测量精度，必须在允许条件下尽可能多的取点(每个点测量距离、方向角度、垂直角度)；软件三维建模时也就必须处理大量测量点的数据来建立模型。以上两点都会导致整个盘煤过程的时间延长，使盘煤仪的工作效率低下。In order to accurately obtain the coal storage capacity of the thermal power plant and save power generation costs, some practitioners have proposed using a laser disk coal measuring device. The system has greatly improved the labor intensity of workers, reduced the measurement error caused by human factors, and realized the automatic coal mining of coal yards. However, the conventional laser disk coal measuring device also has the following disadvantages: 1. Low precision. Although the current technology of the laser disk coal meter is more portable than the fixed type of coal pile distribution applicability and measurement range adaptability, the basic technical principle is still the process of taking points, modeling and calculation. In terms of taking points, since the number of points is limited, the number of points is limited, so the systematic error is large; on the other hand, if the number of points is too large, the measurement efficiency is low. Existing technologies can only be traded off in the above two aspects. In terms of modeling, any theoretical model is just an approximate simulation method. In practice, the shape and distribution shape of the coal pile are randomly and irregularly varied, and the system also has large errors that cannot be eliminated. In terms of calculation, although the error of the calculated volume model can be neglected, there is also a large systematic error in estimating the density of the coal pile. Since the whole system integrates all the above subsystem errors, it directly leads to the lack of precision of the conventional laser disk coal device. Therefore, many power plants found that after the laser disk coal instrument was purchased, the accuracy of the actual inventory results was far from the nominal accuracy of some manufacturers. 2, the reliability is not high. The working process of the traditional laser disk coal instrument is complex, including coal pile taking points (including distance measurement, direction angle measurement, vertical angle measurement), data conversion (converted to three-dimensional coordinates), three-dimensional modeling, volume calculation, and cumbersome Work process guide
The reliability is not high. 3. Adaptability is not high. The spread of laser light in the air during rain, snow, dust and haze is easily affected, which affects the measurement of points, distances and angles. Therefore, the measurement results of the laser disk coal meter under the above environmental conditions are very unreliable and the environmental adaptability is not high. 4. Low efficiency. In order to achieve a certain measurement accuracy, it is necessary to take as many points as possible (measuring distance, direction angle, vertical angle at each point); in software three-dimensional modeling, it is necessary to process a large number of measuring points. Data to build the model. The above two points will lead to prolonged time of the entire coal-making process, which makes the working efficiency of the coal-fired instrument low.
【发明内容】[Summary of the Invention]
本发明要解决的技术问题就在于：针对现有技术存在的技术问题，本发明提供一种原理简单、操作方便、稳定性好、精度高、适用范围广、效率好的料场重量检测方法及***。The technical problem to be solved by the present invention is that the present invention provides a method for detecting the weight of a stockyard with simple principle, convenient operation, good stability, high precision, wide application range and high efficiency, and the technical problems existing in the prior art. system.
为解决上述技术问题，本发明采用以下技术方案：In order to solve the above technical problems, the present invention adopts the following technical solutions:
一种料场重量检测方法，在料场处的地基上布设压力传感装置，所述压力传感装置用来实时检测作用面积上的压力，并将所述压力换算成料场上物料的重量。A stockyard weight detecting method is provided with a pressure sensing device on a foundation at a stockyard, wherein the pressure sensing device is used to detect the pressure on the active area in real time and convert the pressure into the weight of the material on the stockyard. .
作为本发明方法的进一步改进：将所述料场分割划分成若干个检测单元，所述压力传感装置的布设采用阵列的形式，即由多个阵列单位组成，每个阵列单位对应一个检测单元。As a further improvement of the method of the present invention, the material field is divided into a plurality of detecting units, and the pressure sensing device is arranged in an array form, that is, composed of a plurality of array units, and each array unit corresponds to one detecting unit. .
作为本发明方法的进一步改进：在每个压力传感装置的周围布设安装一个温度计以进行温度补偿、修正测量数据。As a further improvement of the method of the invention: a thermometer is placed around each pressure sensing device for temperature compensation and correction of measurement data.
作为本发明方法的进一步改进：所述压力传感装置为振弦式土压力计或光纤传感器。As a further improvement of the method of the invention: the pressure sensing device is a vibrating wire earth pressure gauge or a fiber optic sensor.
本发明进一步提供一种料场重量检测***，包括布设于料场处地基上的压力传感组件，所述压力传感组件检测作用面积上的压力并将所述压力换算成料场上物料的重量。The invention further provides a stockyard weight detecting system comprising a pressure sensing assembly disposed on a foundation at a stockyard, the pressure sensing assembly detecting a pressure on an active area and converting the pressure into a material on the stockyard weight.
作为本发明***的进一步改进：所述压力传感组件包括多个压力传感器，所述压力传感器布设在地基上；所述料场分割划分成若干个检测单元，每个压力传感器与一个检测单元对应。As a further improvement of the system of the present invention, the pressure sensing assembly includes a plurality of pressure sensors disposed on a foundation; the stock field is divided into a plurality of detecting units, and each pressure sensor corresponds to one detecting unit .
作为本发明***的进一步改进：所述检测单元的中央安放一平板，所述压力传感器安装于平板上，所述压力传感器固接于平板上后，在检测单元范围内回填颗粒物，所述回填颗粒物的厚度高出压力传感器；所述回填颗粒物的表面上设置有覆盖层。As a further improvement of the system of the present invention, a flat plate is placed in the center of the detecting unit, the pressure sensor is mounted on the flat plate, and after the pressure sensor is fixed on the flat plate, the particulate matter is backfilled within the detection unit, and the backfilled particulate matter is backfilled. The thickness is higher than the pressure sensor; the surface of the backfilled particles is provided with a cover layer.
所述应力传感器通过钢板固定于地基上，上面填充有细沙层，所述细沙层的顶部用多层煤矸石层进行分层夯实。The stress sensor is fixed on the foundation by a steel plate, and is filled with a fine sand layer, and the top of the fine sand layer is layered and tamped with a multi-layer coal gangue layer.
作为本发明***的进一步改进：所述每个压力传感器的周围安装有温度计以进行温度补偿、修正测量数据。
As a further improvement of the system of the present invention, a thermometer is installed around each of the pressure sensors for temperature compensation and correction of measurement data.
作为本发明***的进一步改进：多个所述压力传感器沿料场的边界横向或者纵向方向上布置，每一个横向或纵向方向上的压力传感器串联成一条检测线路；每条检测线路布设个至少一个温度计作为温度补偿。As a further improvement of the system of the present invention, a plurality of the pressure sensors are arranged in a lateral or longitudinal direction along a boundary of the material field, and the pressure sensors in each of the lateral or longitudinal directions are connected in series to form one detection line; at least one of each detection line is disposed. The thermometer is used as a temperature compensation.
作为本发明***的进一步改进：还包括检测室，所有检测线路通过光缆引线引至检测室。Further improvements to the system of the present invention include the detection chamber, with all of the test lines being routed through the cable leads to the test chamber.
与现有技术相比，本发明的优点在于：The advantages of the present invention over the prior art are:
1、本发明通过将压力传感器布置在料场处，由其产生的变化光信号通过光纤回传至计算机进行分析处理，由局部物料重量累计出全部的物料质量。压力传感装置能够对料场处库存量的信息进行准确、及时、高效的掌握，给库存智能化管控提供了依据。1. The invention arranges the pressure sensor at the stockyard, and the changed light signal generated by the same is transmitted back to the computer through the optical fiber for analysis and processing, and the total material quality is accumulated from the local material weight. The pressure sensing device can accurately, timely and efficiently grasp the information of the stock quantity at the stockyard, and provides a basis for the inventory intelligent control.
2、***稳定。本发明的***在料场内“一次”预先铺设光纤网络，可供长期使用，寿命周期内***稳定性、可靠性高，雨雪、扬尘、雾霾气候环境因素对测量***无任何影响，可进行全天候精确测量。同时，光纤传感器为无源元件，可简化***结构。2. The system is stable. The system of the invention pre-lays the optical fiber network "once" in the stockyard for long-term use, and the system stability and reliability are high in the life cycle, and the rain, snow, dust and haze climate environment factors have no influence on the measurement system, Make accurate measurements around the clock. At the same time, the fiber optic sensor is a passive component that simplifies the system structure.
3、精度高。本发明提高了采集数据的精度，也大大降低了软件***数据处理产生的***误差，使该技术的精度较传统的盘煤装置有了质的提高。而且，传感器与软件***信息传输不间断进行，可保证数据的实时性，可实施物料在线监测。3. High precision. The invention improves the precision of collecting data, and greatly reduces the systematic error caused by the data processing of the software system, so that the precision of the technology is improved qualitatively compared with the traditional coal-sizing device. Moreover, the information transmission between the sensor and the software system is continuously performed, which can ensure the real-time performance of the data, and can implement on-line monitoring of materials.
4、效率高。本发明的***具有“一次”***装调、“直接”质量采集、“实时”信息更新的优点，使该技术免去了传统方式中对***经常调整且调试困难、每次盘料周期过长等问题，使效率得到了很大的提高，可以用于物料总量、进出量等的在线动态监测与预警。4. High efficiency. The system of the invention has the advantages of "one time" system adjustment, "direct" quality acquisition, and "real time" information update, so that the technology is free from the conventional adjustment and debugging of the system in the conventional mode, and the disc circulation period is too long. Such problems have greatly improved the efficiency and can be used for online dynamic monitoring and early warning of total materials, inflow and outflow.
图1是本发明方法的流程示意图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic flow diagram of the process of the present invention.
图2是本发明***的框架结构原理示意图。2 is a schematic view showing the principle of the frame structure of the system of the present invention.
图3是本发明***中光纤传感器的安装示意图。Figure 3 is a schematic illustration of the installation of a fiber optic sensor in the system of the present invention.
图4是本发明在另一种实例中的框架结构原理示意图。Fig. 4 is a schematic view showing the principle of a frame structure in another example of the present invention.
图5是本发明***中应力传感器的另一种安装方式示意图。Figure 5 is a schematic illustration of another manner of installation of the stress sensor in the system of the present invention.
图6是本发明在又一种实例中的框架结构原理示意图。Fig. 6 is a schematic view showing the principle of a frame structure in still another example of the present invention.
图例说明：illustration:
1、物料；2、光纤传感器；3、光纤温度计；4、平板；5、检测室；6、覆盖层；7、地基；8、回填颗粒物；9、检测单元；10、检测线路；11、钢板；12、细沙层；13、煤矸石层；16、信号发射单元；17、信号接收单元。1, material; 2, fiber optic sensor; 3, fiber optic thermometer; 4, flat; 5, detection room; 6, cover layer; 7, foundation; 8, backfill particles; 9, detection unit; 10, detection line; ; 12, fine sand layer; 13, coal gangue layer; 16, signal transmission unit; 17, signal receiving unit.
以下将结合说明书附图和具体实施例对本发明做进一步详细说明。
The invention will be further described in detail below in conjunction with the drawings and specific embodiments.
本发明的料场重量检测方法，尤其适用于对料场进行动态的实时监测和管理。在料场处的地基7上布设压力传感装置。压力传感装置用来实时检测作用面积上的压力，并将所述压力换算成料场上物料1的重量。本发明可以适用于各种料场，例如大型人工砂石料场、港口仓库、人工堆山等等，以实现料场、堆山的实时称重。所述压力传感装置通常有振弦式和光纤传感器两种，本实例中选用光纤传感器为例。光纤传感器可以选择一个以上的光纤压力计，光纤压力计以其灵敏度高、量程大、准分布检测、稳定耐久性好、抗腐蚀适用于长期检测的特点，结合一定的检测布设方式，可完全解决大型料场、仓库、人工堆山的人工称重问题。The method for detecting the yard weight of the invention is particularly suitable for dynamic real-time monitoring and management of the stockyard. A pressure sensing device is placed on the foundation 7 at the stockyard. The pressure sensing device is used to detect the pressure on the active area in real time and convert the pressure into the weight of the material 1 on the stockyard. The invention can be applied to various stockyards, such as large artificial gravel yards, port warehouses, artificial piles, etc., in order to realize real-time weighing of the stockyard and the stacking hills. The pressure sensing device usually has two types of vibrating wire type and fiber optic sensor. In this example, a fiber optic sensor is selected as an example. The fiber optic sensor can select more than one fiber optic pressure gauge. The fiber optic pressure gauge can be completely solved with its high sensitivity, large range, quasi-distribution detection, stable and durable durability, and corrosion resistance suitable for long-term detection. Manual weighing of large stockyards, warehouses, and artificial mountains.
光纤压力计可以根据实际需要采用布拉格光栅FBG结构或布里渊Brillouin散射或拉曼Raman散射结构。The fiber optic pressure gauge can adopt Bragg grating FBG structure or Brillouin Brillouin scattering or Raman Raman scattering structure according to actual needs.
以下以所述压力传感装置采用光纤传感器组成光纤传感组件为例对本发明的料场重量检测方法加以说明。Hereinafter, the method for detecting the weight of the stockyard of the present invention will be described by taking the optical sensor assembly of the pressure sensing device as an example.
作为较佳的实施例，本实例中进一步将料场分割划分成若干个检测单元9，光纤传感组件的布设采用阵列的形式，即由多个阵列单位组成，每个阵列单位对应一个检测单元，一个阵列单位即为一个光纤光栅压力计，从而实现了料场的均分细化等效称重，提高了测量数值的准确度。优选地，所有检测单元9均为大小相等。As a preferred embodiment, the present embodiment further divides the stock field into a plurality of detecting units 9, and the arrangement of the optical fiber sensing components is in the form of an array, that is, composed of a plurality of array units, and each array unit corresponds to one detecting unit. An array unit is a fiber grating pressure gauge, which realizes equalization and equalization of the material yard, and improves the accuracy of the measured value. Preferably, all of the detection units 9 are of equal size.
以下通过长宽为50m×100m大小的场地为例，将50m×100m大小的场地，按5m×5m的规格划分为若干检测单元9。结合图1所示，在每一检测单元9内布设一个光纤传感组件的阵列单位(如：光纤传感器)，从而构建成完整的光纤传感组件来检测整个料场的重量应力大小。当料场堆放库料达到稳定后，某检测单元9对应的阵列单位i测量到上覆应力大小为δi，则检测单元9内料场重力为:gi＝δiAi，Ai为检测单元9的有效重力面积。因而料场整体的库料重力Gn为所有检测单元9的重力之和，即：
其中，有效重力面积Ai可视具体料场堆放情况进行一定修正。对于料场边界检测单元9，其上覆料体部分覆盖检测单元9，面积Ai进行等效修正。中心内部检测单元9上部完全覆盖料体，面积大小为Ai的大小为25m2。For example, a site having a length and a width of 50 m×100 m is taken as an example, and a site of 50 m×100 m is divided into a plurality of detecting units 9 according to a specification of 5 m×5 m. As shown in FIG. 1, an array unit of fiber sensing components (eg, fiber optic sensors) is disposed in each of the detecting units 9, thereby constructing a complete fiber sensing assembly to detect the weight stress of the entire yard. After the stockyard stacking material has stabilized, the array unit i corresponding to a detecting unit 9 measures the overlying stress magnitude as δ i , and the stockyard gravity in the detecting unit 9 is: g i =δ i A i , A i is The effective gravity area of the detection unit 9. Therefore, the bulk material gn of the stockyard is the sum of the gravity of all the detecting units 9, ie: Among them, the effective gravity area A i can be corrected according to the specific stockyard stacking situation. For the stock field boundary detecting unit 9, the upper covering body portion covers the detecting unit 9, and the area A i is equivalently corrected. The upper part of the central internal detecting unit 9 completely covers the material body, and the size of the area A i is 25 m 2 .
由于光纤传感器2对温度敏感，在长期料场、仓库、人工堆山重量检测时，光纤传感器2受环境温度变化有可能而产生测量偏差，本发明进一步提供温度补偿方案，对测量数据进行修正。即，在每个光纤传感器2的周围半径范围内布设安装一个光纤温度计3用来进行温度补偿，修正测量数据。光纤温度计3的内部原理结构与光纤应力传感器一样，只是让其不受应力影响，只受温度影响。把受温度影响的波长变化，对应光纤应力传感器进
行补偿。另外也可以用其他测温的方法，对光纤应力传感器部分进行测温。Since the optical fiber sensor 2 is sensitive to temperature, in the long-term stockyard, warehouse, and artificial mountain weight detection, the optical fiber sensor 2 may be subjected to measurement variations due to changes in ambient temperature, and the present invention further provides a temperature compensation scheme to correct the measurement data. That is, an optical fiber thermometer 3 is disposed in the peripheral radius of each of the optical fiber sensors 2 for temperature compensation, and the measurement data is corrected. The internal principle structure of the fiber optic thermometer 3 is the same as that of the fiber stress sensor, except that it is not affected by the stress and is only affected by the temperature. Change the wavelength affected by temperature, corresponding to the fiber stress sensor
Line compensation. In addition, other temperature measurement methods can be used to measure the temperature of the fiber stress sensor.
如图2所示，本发明进一步提供一种料场重量检测***，包括布设于料场处地基7上的压力传感组件，压力传感组件通常有振弦式土压力计和光纤传感器两种，本实例中选用光纤传感器为例。光纤传感组件实时检测作用面积上的压力并将所述压力换算成料场上物料1的重量。As shown in FIG. 2, the present invention further provides a stockyard weight detecting system, comprising a pressure sensing component disposed on a foundation 7 at a stockyard. The pressure sensing component generally has two types of vibrating wire earth pressure gauges and fiber optic sensors. In this example, a fiber optic sensor is selected as an example. The fiber optic sensing assembly detects the pressure on the active area in real time and converts the pressure to the weight of material 1 on the stockyard.
本实施例中，如图3所示，光纤传感组件包括多个光纤传感器2(如：光纤光栅土压力计)。光纤传感器2布设在人工处理地基7上(如：人工压密土体地面、水泥地面上)。检测单元9的中央安放长、宽、厚为一定值的钢板(如20cm×20cm×3cm)，在其上安装光纤传感器2，并通过灌胶或电焊等方式固定在其上。优选地，钢板呈水平状安放于检测单元9的正中心。接着，在检测单元9范围内回填颗粒物，回填颗粒物8厚度应高出光纤传感器2。优选地，回填颗粒物8采用砂体。In this embodiment, as shown in FIG. 3, the optical fiber sensing component includes a plurality of optical fiber sensors 2 (eg, a fiber grating earth pressure gauge). The fiber optic sensor 2 is disposed on the artificially treated foundation 7 (eg, artificially compacted soil floor, concrete floor). A steel plate (for example, 20 cm × 20 cm × 3 cm) having a length, a width, and a thickness is placed in the center of the detecting unit 9, and the optical fiber sensor 2 is mounted thereon, and is fixed thereto by means of potting or electric welding. Preferably, the steel plate is placed horizontally in the center of the detecting unit 9. Next, the particulate matter is backfilled within the range of the detection unit 9, and the backfilled particulate matter 8 should be thicker than the fiber optic sensor 2. Preferably, the backfilled particulate matter 8 is a sand body.
在其他实施例中，如图5所示，还可以将压力传感器(如光纤传感器2或其他类型)通过钢板11固定于地基7上，上面填充有细沙层12，细沙层12的顶部用多层煤矸石层13进行分层夯实。In other embodiments, as shown in FIG. 5, a pressure sensor (such as fiber optic sensor 2 or other type) may also be fixed to the foundation 7 by a steel plate 11 filled with a fine sand layer 12, and the top of the fine sand layer 12 is used. The multi-layer coal gangue layer 13 is layered and tamped.
本实施例中，在每个光纤传感器2的周围半径范围内布设安装一个光纤温度计3用来进行温度补偿，修正测量数据。由于光纤传感器2对温度敏感，在长期料场、仓库、人工堆山重量检测时，光纤传感器2受环境温度变化有可能而产生测量偏差，本发明进一步提供温度补偿方案，对测量数据进行修正。In the present embodiment, a fiber optic thermometer 3 is disposed in the peripheral radius of each of the optical fiber sensors 2 for temperature compensation and correction measurement data. Since the optical fiber sensor 2 is sensitive to temperature, in the long-term stockyard, warehouse, and artificial mountain weight detection, the optical fiber sensor 2 may be subjected to measurement variations due to changes in ambient temperature, and the present invention further provides a temperature compensation scheme to correct the measurement data.
本实施例中，如图2所示，多个光纤传感器2沿料场(仓库)的边界横向或者纵向方向上布置，每一个横向或纵向方向上的光纤传感器2串联成一条检测线路10。在具体应用时，为每条检测线路10布设个一个光纤温度计3作为温度补偿，即将对应的光纤温度计3通过光缆串联成温度补偿线路。In the present embodiment, as shown in Fig. 2, a plurality of optical fiber sensors 2 are arranged in the lateral or longitudinal direction of the boundary of the stockyard (warehouse), and the optical fiber sensors 2 in each of the lateral or longitudinal directions are connected in series to form a detecting line 10. In the specific application, one fiber optic thermometer 3 is arranged for each detection line 10 as temperature compensation, that is, the corresponding fiber optic thermometer 3 is connected in series to form a temperature compensation line through the optical cable.
本实施例中，还可以根据料场现场情况，建立检测室5，利用光缆引线将所用的检测线路10引至检测室5，接入解调设备，实现检测***集成。所述料场重量检测***还包括信号发射单元16和信号接收单元17，所述信号发射单元16和信号接收单元17分别设置在串联在一起的一组光纤传感器2的相对两端，且分别连接至所述检测室5。In this embodiment, the detection room 5 can also be established according to the scene of the material yard, and the detection line 10 used is led to the detection room 5 by the optical cable lead, and the demodulation device is connected to realize the integration of the detection system. The stockyard weight detecting system further includes a signal transmitting unit 16 and a signal receiving unit 17, respectively, and the signal transmitting unit 16 and the signal receiving unit 17 are respectively disposed at opposite ends of a group of optical fiber sensors 2 connected in series, and are respectively connected To the detection chamber 5.
在另一实施例中，如图4所示，多个光纤传感器2沿料场(仓库)的边界横向或者纵向方向上布置，每一个横向或纵向上的光纤传感器2串联后的最后一个光纤传感器经检测线路10直接接入检测室5。具体地，所述检测线路10为光纤光缆。
In another embodiment, as shown in FIG. 4, a plurality of fiber optic sensors 2 are arranged in a lateral or longitudinal direction along the boundary of the stockyard (warehouse), and the last fiber optic sensor after each of the transverse or longitudinal fiber optic sensors 2 are connected in series The detection line 10 is directly connected to the detection chamber 5. Specifically, the detection line 10 is a fiber optic cable.
在又一实施例中，如图6所示，所述压力传感器采用振弦式土压力计，多个振弦式土压力计沿料场(仓库)的边界横向或者纵向方向上布置，每个振弦式土压力计分别通过检测线路10连接到检测室5。In still another embodiment, as shown in FIG. 6, the pressure sensor is a vibrating wire type earth pressure gauge, and a plurality of vibrating wire earth pressure gauges are arranged along a boundary of a material field (warehouse) in a lateral or longitudinal direction, each The vibrating wire earth pressure gauge is connected to the detection chamber 5 through the detection line 10, respectively.
本发明的***对料场的重量实时动态监测包括整体重量动态监测和局部重量动态监测。局部重量动态变化的监测最小区域可以为一个传感器单元区域；多个传感器单元区域可以组成较大的局部区域；而整体重量动态监测是建立在局部重量动态监测的基础之上的。The real-time dynamic monitoring of the weight of the stockyard by the system of the present invention includes overall weight dynamic monitoring and local weight dynamic monitoring. The minimum area of monitoring of local weight dynamic changes may be one sensor unit area; multiple sensor unit areas may constitute a larger local area; and overall weight dynamic monitoring is based on local weight dynamic monitoring.
本发明的***通过料堆底部布置的光纤温度计采集的实时温度信息，可以获得料堆底部温度分布动态数据。这是对光纤压力传感器进行实时温度修正的依据，可以提高光纤压力传感器的测量精度，从而提高整个***的测量精度。可以理解，所述光纤温度计也可为其他类型的温度传感器，当所述压力传感器为光纤传感器时，所述温度传感器对应采用光纤温度计为佳。The system of the invention can obtain the dynamic data of the temperature distribution at the bottom of the pile by real-time temperature information collected by the fiber thermometer disposed at the bottom of the pile. This is the basis for real-time temperature correction of the fiber optic pressure sensor, which can improve the measurement accuracy of the fiber pressure sensor, thereby improving the measurement accuracy of the entire system. It can be understood that the fiber optic thermometer can also be other types of temperature sensors. When the pressure sensor is a fiber optic sensor, the temperature sensor is preferably a fiber optic thermometer.
本发明的***可以通过布置在料堆底部的光纤压力传感器采集其上物料的压力信息；根据传感器应力-重量校定函数计算其上承载的物料重量；根据每个传感器的重量信息生成料场重量分布的三维柱状图；经过三维曲线平滑算法处理后进行三维坐标重建可得到料堆重量分布三维图；根据指定的物料参考密度可以生成料堆动态三维体积图。The system of the present invention can collect the pressure information of the material on the material by the fiber pressure sensor disposed at the bottom of the pile; calculate the weight of the material carried on the sensor according to the stress-weight calibration function of the sensor; and generate the weight of the yard according to the weight information of each sensor The distributed three-dimensional histogram; after three-dimensional curve smoothing algorithm and three-dimensional coordinate reconstruction, a three-dimensional map of the weight distribution of the pile can be obtained; according to the specified material reference density, a dynamic three-dimensional volume map of the pile can be generated.
本发明的***可以在时间域上进行料场实时、连续的物料增、减(与前一记录比较)记录，可以生成单位时间料场进(增)、出(减)料流量统计。The system of the invention can record the real-time and continuous material increase/decrease (compared with the previous record) in the time domain in the time domain, and can generate the flow rate statistics of the feed field (increase) and output (decrease) in the unit time.
本发明的***进行料场实时、连续的物料总重量监测，与***设定的储量高、低阀值进行比较，超出范围时进行报警；光纤温度传感器进行料场实时、连续的料场底部温度监测，与***设定的温度限值进行比较，超出范围时进行报警。The system of the invention performs real-time and continuous monitoring of the total weight of the material in the material yard, compares with the high and low thresholds set by the system, and alarms when the range is exceeded; the optical fiber temperature sensor performs the real-time and continuous bottom temperature of the material yard. The monitoring is compared with the temperature limit set by the system, and an alarm is issued when the range is exceeded.
以上仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，应视为本发明的保护范围。
The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, and all the technical solutions under the inventive concept belong to the protection scope of the present invention. It should be noted that a number of improvements and modifications without departing from the principles of the invention are considered to be within the scope of the invention.
Claims (11)
- 一种料场重量检测方法，其特征在于，在料场处的地基上布设压力传感装置，所述压力传感装置用来检测作用面积上的压力，并将所述压力换算成料场上物料的重量。A stockyard weight detecting method, characterized in that a pressure sensing device is arranged on a foundation at a stockyard, the pressure sensing device is used for detecting a pressure on an active area, and converting the pressure into a stockyard The weight of the material.
- 根据权利要求1所述的料场重量检测方法，其特征在于，将所述料场分割划分成若干个的检测单元，所述压力传感装置的布设采用阵列的形式，即由多个阵列单位组成，每个阵列单位对应一个检测单元。The material yard weight detecting method according to claim 1, wherein the material field is divided into a plurality of detecting units, and the pressure sensing device is arranged in an array form, that is, by a plurality of array units. Composition, each array unit corresponds to one detection unit.
- 根据权利要求2所述的料场重量检测方法，其特征在于，在每个阵列单位的周围布设安装一个温度计以进行温度补偿、修正测量数据。The stockyard weight detecting method according to claim 2, wherein a thermometer is disposed around each array unit for temperature compensation and correction measurement data.
- 根据权利要求1或2或3所述的料场重量检测方法，其特征在于，所述压力传感装置为振弦式土压力计或光纤传感器。The stockyard weight detecting method according to claim 1 or 2 or 3, wherein the pressure sensing device is a vibrating wire earth pressure gauge or a fiber optic sensor.
- 一种料场重量检测***，其特征在于，包括布设于料场处地基上的压力传感组件，所述压力传感组件检测作用面积上的压力并将所述压力换算成料场上物料的重量。A stockyard weight detecting system, comprising: a pressure sensing assembly disposed on a foundation at a stockyard, the pressure sensing assembly detecting a pressure on an active area and converting the pressure into a material on a stockyard weight.
- 根据权利要求5所述的料场重量检测***，其特征在于，所述压力传感组件包括多个压力传感器，所述压力传感器布设在地基上；所述料场分割划分成若干个检测单元，每个压力传感器与一个检测单元对应。The stockyard weight detecting system according to claim 5, wherein the pressure sensing assembly comprises a plurality of pressure sensors, the pressure sensor is disposed on a foundation; the material field is divided into a plurality of detecting units, Each pressure sensor corresponds to a detection unit.
- 根据权利要求6所述的料场重量检测***，其特征在于，所述检测单元的中央安放一平板，所述压力传感器安装于平板上，所述压力传感器固接于平板上后，在检测单元范围内回填颗粒物，所述回填颗粒物的厚度高出所述压力传感器；所述回填颗粒物的表面上设置有覆盖层。The stockyard weight detecting system according to claim 6, wherein a flat plate is placed in the center of the detecting unit, the pressure sensor is mounted on the flat plate, and the pressure sensor is fixed on the flat plate in the detecting unit. The particulate matter is backfilled within the range, the backfilled particulate matter having a thickness higher than the pressure sensor; and the surface of the backfilled particulate matter is provided with a cover layer.
- 根据权利要求6所述的料场重量检测***，其特征在于，所述压力传感器通过钢板固定于地基上，上面填充有细沙层，所述细沙层的顶部用多层煤矸石层进行分层夯实。The stockyard weight detecting system according to claim 6, wherein the pressure sensor is fixed to the foundation by a steel plate, and is filled with a fine sand layer, and the top of the fine sand layer is divided by a multi-layer coal gangue layer. The layer is solid.
- 根据权利要求5～8中任意一项所述的料场重量检测***，其特征在于，所述每个压力传感器的周围安装有温度计以进行温度补偿、修正测量数据。The stockyard weight detecting system according to any one of claims 5 to 8, characterized in that a thermometer is installed around the pressure sensor to perform temperature compensation and correction measurement data.
- 根据权利要求9所述的料场重量检测***，其特征在于，多个所述压力传感器沿料场的边界横向或者纵向方向上布置，每一个横向或纵向方向上的压力传感器串联成一条检测线路；每条检测线路布设至少一个温度计作为温度补偿。A stockyard weight detecting system according to claim 9, wherein a plurality of said pressure sensors are arranged in a lateral or longitudinal direction along a boundary of the stockyard, and each of the pressure sensors in the lateral or longitudinal direction is connected in series to form a detecting line. At least one thermometer is arranged for each detection line as temperature compensation.
- 根据权利要求10所述的料场重量检测***，其特征在于，还包括检测室，所有检测线路通过光缆引线引至检测室。 A stockyard weight detecting system according to claim 10, further comprising a detection chamber, all of which are led to the detection chamber through the cable leads.
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| CN201410142259.X | 2014-04-10 | ||
| CN201410142259.XA CN104977070A (en) | 2014-04-10 | 2014-04-10 | Stock yard weight detection method and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634636A (en) * | 2020-05-19 | 2020-09-08 | 大连华锐重工集团股份有限公司 | Full-automatic material taking control system of bucket wheel machine |
| CN112362227A (en) * | 2020-11-18 | 2021-02-12 | 中国铁道科学研究院集团有限公司 | Pressure acquisition system and pressure acquisition method |
| CN114018440A (en) * | 2021-11-05 | 2022-02-08 | 华能(福建漳州)能源有限责任公司 | Closed strip-shaped coal yard monitoring device |
| CN115839757A (en) * | 2022-12-01 | 2023-03-24 | 武汉煜炜光学科技有限公司 | Material management method and system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547911A (en) * | 2016-02-01 | 2016-05-04 | 许帅 | Device and method for measuring density of coal stack of coal storage yard |
| CN110823338B (en) * | 2018-08-10 | 2021-05-18 | 河南工业大学 | Granary detection method and system based on bottom surface single-circle standard deviation logarithm model |
| CN113592266A (en) * | 2021-07-20 | 2021-11-02 | 中国建筑土木建设有限公司 | Stock ground electronic management system capable of monitoring excess material amount in real time and use method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62238421A (en) * | 1986-04-10 | 1987-10-19 | Takaaki Nagao | Apparatus for detecting weight of particulate material |
| CN1089353A (en) * | 1993-12-31 | 1994-07-13 | 西安交通大学 | Intelligent weighing instrument for liquid tank |
| CN1963377A (en) * | 2006-10-30 | 2007-05-16 | 朱阳明 | Measuring method for amount of grain reserve in grain depot |
| CN101907481A (en) * | 2010-07-29 | 2010-12-08 | 河南工业大学 | Method for detecting quantity of stored grains in granary based on pressure sensor |
| CN102706417A (en) * | 2012-05-14 | 2012-10-03 | 河南工业大学 | Grain storage quantity detection method for horizontal warehouse and shallow silo |
| CN204101149U (en) * | 2014-04-10 | 2015-01-14 | 湖南三德科技股份有限公司 | A kind of stock ground weight detection system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684297A (en) * | 1994-11-17 | 1997-11-04 | Alcatel Cable | Method of detecting and/or measuring physical magnitudes using a distributed sensor |
| CN101614602B (en) * | 2009-08-03 | 2012-04-18 | 电子科技大学 | Method and device for monitoring power transmission line |
| CN103271741A (en) * | 2013-06-19 | 2013-09-04 | 华中科技大学 | Sleeping posture monitor |
-
2014
- 2014-04-10 CN CN201410142259.XA patent/CN104977070A/en active Pending
-
2015
- 2015-04-02 WO PCT/CN2015/075779 patent/WO2015154638A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62238421A (en) * | 1986-04-10 | 1987-10-19 | Takaaki Nagao | Apparatus for detecting weight of particulate material |
| CN1089353A (en) * | 1993-12-31 | 1994-07-13 | 西安交通大学 | Intelligent weighing instrument for liquid tank |
| CN1963377A (en) * | 2006-10-30 | 2007-05-16 | 朱阳明 | Measuring method for amount of grain reserve in grain depot |
| CN101907481A (en) * | 2010-07-29 | 2010-12-08 | 河南工业大学 | Method for detecting quantity of stored grains in granary based on pressure sensor |
| CN102706417A (en) * | 2012-05-14 | 2012-10-03 | 河南工业大学 | Grain storage quantity detection method for horizontal warehouse and shallow silo |
| CN204101149U (en) * | 2014-04-10 | 2015-01-14 | 湖南三德科技股份有限公司 | A kind of stock ground weight detection system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634636A (en) * | 2020-05-19 | 2020-09-08 | 大连华锐重工集团股份有限公司 | Full-automatic material taking control system of bucket wheel machine |
| CN111634636B (en) * | 2020-05-19 | 2024-04-02 | 大连华锐重工集团股份有限公司 | Full-automatic material taking control system of bucket wheel machine |
| CN112362227A (en) * | 2020-11-18 | 2021-02-12 | 中国铁道科学研究院集团有限公司 | Pressure acquisition system and pressure acquisition method |
| CN114018440A (en) * | 2021-11-05 | 2022-02-08 | 华能(福建漳州)能源有限责任公司 | Closed strip-shaped coal yard monitoring device |
| CN114018440B (en) * | 2021-11-05 | 2023-06-13 | 华能(福建漳州)能源有限责任公司 | Closed strip-shaped coal yard monitoring device |
| CN115839757A (en) * | 2022-12-01 | 2023-03-24 | 武汉煜炜光学科技有限公司 | Material management method and system |
| CN115839757B (en) * | 2022-12-01 | 2023-08-22 | 武汉煜炜光学科技有限公司 | Material management method and system |
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