CN204421832U - Based on the belt material measuring system of laser ranging - Google Patents
Based on the belt material measuring system of laser ranging Download PDFInfo
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- CN204421832U CN204421832U CN201520028151.8U CN201520028151U CN204421832U CN 204421832 U CN204421832 U CN 204421832U CN 201520028151 U CN201520028151 U CN 201520028151U CN 204421832 U CN204421832 U CN 204421832U
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Abstract
The utility model discloses a kind of belt material measuring system based on laser ranging, belong to non-contact strap scale system.Described system mainly comprises laser scanning and ranging equipment, belt speed measuring equipment, data network and statistical server; Above every bar travelling belt, laser scanning and ranging equipment is installed, and on the cylinder of travelling belt, belt speed measuring equipment is installed; By the data of data network transmission, statistical server receives volume and the quality that process data obtain the material that each travelling belt transmits.Described system adopts centralized data processing method, realizes simultaneously to Measurement accuracy and the monitoring of multiple belt.Native system device therefor and original paper are few, and structure is simple, and measuring accuracy is high, safe and reliable to operation, implementation cost is low, are convenient to use in industry at each travelling belt apply.
Description
Technical field
The utility model relates to a kind of belt material measuring system based on laser ranging, and this system relates to laser ranging and the field such as to communicate.
Background technology
Travelling belt is the visual plant of material short-distance transport, is widely used in the production industries such as mine, agricultural, food, tobacco.The quality of Measurement accuracy Belt Conveying material is for the meaning of producing control automatically, output statistics, production control cost have positive important.Belt in current actual production measures main use belted electronic balance and controlled nucleon operated belt conveyor scale.Belted electronic balance utilizes pressure transducer to measure the belt that causes of weight of material to the pressure of sensor, thus realize the measurement to weight of material.Belted electronic balance adopts contact type measurement, and complicated in mechanical structure, comprise carrying roller, lever and various bindiny mechanism, mechanical hook-up is numerous, and the fault of any device all can affect the precision of measurement.So it is low to there is measuring accuracy, the problems such as failure rate is high, maintenance is complicated.Controlled nucleon operated belt conveyor scale is by projecting gamma-rays to the material on belt, gamma-rays is different through the decay caused by different-thickness material, detect through gamma intensity after material, intensity is brought into the material thickness that can to obtain to material component, formula that density is relevant in directions of rays, controlled nucleon operated belt conveyor scale is exactly the measurement realizing material by this ultimate principle.Controlled nucleon operated belt conveyor scale adopts non-contact measurement, overcomes the some drawbacks that belted electronic balance exists, but still there is the problems such as precision is low, Safe Management, demarcation complexity.Also have the principle of some image procossing passed through to carry out the method for belt material measurement at present, but due to precision and exploitativeness aspect, many places, in theory stage, do not form product.
Therefore, a kind of measuring accuracy of needs is high, simple and reliable at present, cost is low, the new method that the travelling belt material being convenient to implement is measured and system.
Summary of the invention
The utility model object is to provide that a kind of measuring accuracy is high, simple and reliable, cost is low, contactless travelling belt measuring system.Described measuring system adopts integrated system framework, can image data simultaneously to multiple travelling belt in disposal system, realizes measuring the volume of the material that multiple travelling belt is carried and the real time remote of quality.
Described measuring system mainly comprises: laser scanning and ranging equipment, belt speed measuring equipment, data network and statistical server; Above every bar travelling belt, laser scanning and ranging equipment is installed, and on the cylinder of travelling belt, belt speed measuring equipment is installed; Statistical server to receive on each bar travelling belt equipment by the data of data network transmission; Statistical server obtains volume and the quality of the material that each travelling belt transmits to data processing.
This system comprises further: laser scanning and ranging equipment is arranged on directly over the axis of symmetry of every bar travelling belt, and setting height(from bottom) should higher than height of materials; The scanning plane of laser scanning and ranging equipment perpendicular to tangent plane bottom the belt axis of symmetry and belt, and should need ensure that scanning finding range is greater than belt width simultaneously.
This system comprises further: each scan period of laser scanning and ranging equipment can obtain one group of data, and each data representation laser head is to the distance value on material surface, and these group data are the cross section shaped upper part data of belt and material.
This system comprises further: described statistical server mainly comprises communication unit, storage unit, data processing unit; Communication unit is responsible for gathering the output data receiving laser scanning and ranging equipment and the belt speed measuring equipment come by data network transmission, and the data of data processing unit process are sent to miscellaneous equipment; Storage unit is responsible for the real-time of the quality of material storing all belts and historical data, and each belt associated parameter data; Data processing unit is responsible for the data processing communication unit reception, obtains volume and the quality of the material that each travelling belt transmits.
This system comprises further: described statistical server stores the scan-data of laser scanning and ranging equipment when belt is unloaded.
This system comprises further: the data processing unit of described statistical server comprises multiplication process module and addition process module; Scan-data and the unloaded scan-data of pre-recorded belt are carried out difference process by addition process module in charge, obtain material cross-section data on belt; Multiplication process module in charge, by quadrature process interval time of material cross-section data, belt speed and image data, obtains instantaneous mass volume, by result and material density quadrature process again, obtains instantaneous mass quality; Addition process module is also responsible for, by instantaneous mass volume or quality summation, obtaining cumulative volume and the quality of the material that belt transmits.
Accompanying drawing explanation
Fig. 1 is based on the belt material measuring system schematic diagram of laser ranging.
Fig. 2 laser scanning and ranging equipment and belt speed measuring equipment scheme of installation.
Fig. 3 statistical server function system structural representation.
Fig. 4 material measuring process schematic diagram.
Fig. 5 laser scanning and ranging demarcates the cross-section data schematic diagram gathered.
Fig. 6 laser scanning and ranging measures the instantaneous cross-section data schematic diagram gathered.
The process of Fig. 7 difference obtains the instantaneous cross-section data schematic diagram of material.
The instantaneous schematic cross-section of Fig. 8.
Embodiment
As shown in Figure 1 in exemplifying embodiment, described measuring system composition comprises:
1. statistical server (101), be responsible for the data that in receiving system, all laser scanning and ranging equipment and belt speed measuring equipment are uploaded, and process volume of material and the quality of material that data obtain the transmission of each belt, then send to miscellaneous equipment by processing the data obtained.
2. monitoring host computer (102), production management personnel check the situation of belt operation and transported material by monitor terminal, and the opertaing device that can connect belt realizes the control to belt.
3. core switching device (103), the hard core control of data network and switching equipment, be responsible for all management and exchanges data having access to the equipment of spider lines, as network range is large, select Ethernet networking, as network within the specific limits, also can select fieldbus mode building network.
4. access switching equipment (104), the access device of data network, be responsible for equipment access network and exchanges data.
5. laser scanning and ranging equipment (105), can adopt the laser scanning and ranging instrument with network interface, connects access switch; Laser scanning and ranging instrument as selected does not have network interface, need increase communications switching unit by laser scanning and ranging instrument access network.
6. belt speed measuring equipment (106), comprise data acquisition and data processing communication two parts, photoelectric coding speed probe is adopted to carry out data acquisition, directly or indirectly be connected with the axle of belt speed measuring cylinder, the rotating speed of real-time measurement cylinder, can produce and the pulse signal asking drum rotation speed to be directly proportional; Data processing communication part is responsible for pulse signal to obtain belt speed in conjunction with diameter of cylinder computing, and sends belt speed to statistical server by network.
The installation site of laser scanning and ranging equipment and belt speed measuring equipment is with reference to figure 2:
1., directly over the axis of symmetry of the every bar travelling belt of laser scanning and ranging instrument (105), setting height(from bottom) should higher than height of materials; The scanning plane of laser scanning and ranging equipment perpendicular to tangent plane (202) bottom belt Runtime Infrastructure (201) and belt, and should need ensure that scanning finding range is greater than belt width simultaneously.
2. the part of data acquisition of belt speed measuring equipment (106) connects the axle of cylinder (203).
With reference to figure 3, statistical server comprises:
1. communication unit (301), be responsible for the input and output of statistical server data, function realizes primarily of interface chip (302), be connected with data network by port (303), interface chip should meet data network standard requirement, can network card chip be used, also can use fieldbus chip.
2. storage unit (304), comprise data management module (305) and memory element (306), data management module is responsible for managing the storage space resource of memory element, comprises and stores data address management and the management of data retrieval inquiry service.
3. data processing unit (307), comprises addition process module (308) and multiplication process module (309), the totalizer that most processor can be utilized built-in and multiplier, and FPGA also can be used to realize.Addition process module is for performing the data processing work of addition and subtraction, and multiplication process module is for performing the data processing work of multiplication.
The specific works step that material is measured is as follows:
1. during first use, need advanced line space to carry demarcation (401)), timing signal need use laser scanning and ranging equipment scan to unloaded belt, obtains the cross section shaped upper part data A of unloaded belt
b, as shown in Figure 5, be recorded in statistical server.
2. when (402) are measured, statistical server receives the cross section shaped upper part data A that laser scanning and ranging device scan obtains material on belt
i, as shown in Figure 6, receive the real-time belt movement speed v that belt speed measuring equipment is uploaded simultaneously
i,
3. the unloaded scan-data of belt of scan-data and timing signal record is carried out difference process, S by (403)
i=A
b-A
i, as shown in Figure 7; Instantaneous mass cross-section data S is obtained after process
i, as shown in Figure 8.
4. (404) instantaneous cross section profile data are multiplied with the belt speed of acquisition and are multiplied by Δ t interval time of image data again
i, obtain the instantaneous mass measurement volumes V that in this interval time, travelling belt transmits
i, V
i=S
iv
iΔ t
i; Instantaneous mass volume is multiplied by material density q, namely obtains instantaneous mass mass M
i, M
i=V
iq.
5. (405) are by the instantaneous mass mass M in this belt period
icumulative, the quality of material Z transmitted in this period of this belt can be obtained
t,
in formula N be in time period T statistical server to the image data number of times of laser scanning and ranging device scan data, Δ t
ithe larger measuring accuracy of less then N is higher.
Claims (6)
1. based on a belt material measuring system for laser ranging, it is characterized in that: system mainly comprises laser scanning and ranging equipment, belt speed measuring equipment, data network and statistical server; Above every bar travelling belt, laser scanning and ranging equipment is installed, and on the cylinder of travelling belt, belt speed measuring equipment is installed; Statistical server to receive on each bar travelling belt equipment by the data of data network transmission; Statistical server obtains volume and the quality of the material that each travelling belt transmits to data processing.
2. measuring system as claimed in claim 1, is characterized in that: laser scanning and ranging equipment is arranged on directly over the axis of symmetry of every bar travelling belt, and setting height(from bottom) should higher than height of materials; The scanning plane of laser scanning and ranging equipment perpendicular to tangent plane bottom the belt axis of symmetry and belt, and should need ensure that scanning finding range is greater than belt width simultaneously.
3. measuring system as claimed in claim 1, is characterized in that: laser scanning and ranging equipment should select the equipment with network or bus interface; As equipment does not have network or bus interface, communications switching unit need be increased by laser scanning and ranging equipment access data network.
4. measuring system as claimed in claim 1, is characterized in that: described statistical server mainly comprises communication unit, storage unit, data processing unit; Communication unit is responsible for gathering the output data receiving laser scanning and ranging equipment and the belt speed measuring equipment come by data network transmission, and the data of data processing unit process are sent to miscellaneous equipment; Storage unit is responsible for the real-time of the quality of material storing all belts and historical data, and each belt associated parameter data; Data processing unit is responsible for the data processing communication unit reception, obtains volume and the quality of the material that each travelling belt transmits.
5. measuring system as claimed in claim 4, is characterized in that: described statistical server stores the scan-data of laser scanning and ranging equipment when belt is unloaded.
6. measuring system as claimed in claim 4, is characterized in that: the data processing unit of described statistical server comprises multiplication process module and addition process module; Scan-data and the unloaded scan-data of pre-recorded belt are carried out difference process by addition process module in charge, obtain material cross-section data on belt; Multiplication process module in charge, by quadrature process interval time of material cross-section data, belt speed and image data, obtains instantaneous mass volume, by result and material density quadrature process again, obtains instantaneous mass quality; Addition process module is also responsible for, by instantaneous mass volume or quality summation, obtaining cumulative volume and the quality of the material that belt transmits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520028151.8U CN204421832U (en) | 2015-01-13 | 2015-01-13 | Based on the belt material measuring system of laser ranging |
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|---|---|---|---|
| CN201520028151.8U CN204421832U (en) | 2015-01-13 | 2015-01-13 | Based on the belt material measuring system of laser ranging |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534990A (en) * | 2015-01-13 | 2015-04-22 | 中国矿业大学(北京) | Belt material measuring system based on laser ranging |
| CN105841614A (en) * | 2016-04-13 | 2016-08-10 | 太原理工大学 | Visual scanning and distance measuring method for coal quantity passing belt conveyer |
| CN109870386A (en) * | 2019-04-03 | 2019-06-11 | 浙江省工程物探勘察院 | Geotechnical investigation test specimen density measurement system |
| CN110514553A (en) * | 2019-09-24 | 2019-11-29 | 中国烟草总公司郑州烟草研究院 | The online test method of pipe tobacco material accumulation density on a kind of conveyer belt |
| CN113003148A (en) * | 2021-02-23 | 2021-06-22 | 中国烟草总公司郑州烟草研究院 | Tobacco material mass flow measurement and control method based on laser scanning |
| CN116022524A (en) * | 2022-12-12 | 2023-04-28 | 秦皇岛燕大滨沅科技发展有限公司 | Method for detecting blocking of transfer funnel |
| CN109870386B (en) * | 2019-04-03 | 2024-06-07 | 浙江省工程物探勘察设计院有限公司 | Sample density testing system for rock-soil investigation test |
-
2015
- 2015-01-13 CN CN201520028151.8U patent/CN204421832U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534990A (en) * | 2015-01-13 | 2015-04-22 | 中国矿业大学(北京) | Belt material measuring system based on laser ranging |
| CN105841614A (en) * | 2016-04-13 | 2016-08-10 | 太原理工大学 | Visual scanning and distance measuring method for coal quantity passing belt conveyer |
| CN109870386A (en) * | 2019-04-03 | 2019-06-11 | 浙江省工程物探勘察院 | Geotechnical investigation test specimen density measurement system |
| CN109870386B (en) * | 2019-04-03 | 2024-06-07 | 浙江省工程物探勘察设计院有限公司 | Sample density testing system for rock-soil investigation test |
| CN110514553A (en) * | 2019-09-24 | 2019-11-29 | 中国烟草总公司郑州烟草研究院 | The online test method of pipe tobacco material accumulation density on a kind of conveyer belt |
| CN110514553B (en) * | 2019-09-24 | 2021-10-22 | 中国烟草总公司郑州烟草研究院 | On-line detection method for bulk density of tobacco shred materials on conveying belt |
| CN113003148A (en) * | 2021-02-23 | 2021-06-22 | 中国烟草总公司郑州烟草研究院 | Tobacco material mass flow measurement and control method based on laser scanning |
| CN116022524A (en) * | 2022-12-12 | 2023-04-28 | 秦皇岛燕大滨沅科技发展有限公司 | Method for detecting blocking of transfer funnel |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |