CN204359481U - Silo pressure sensitive system, granary storage capacity on-line monitoring and early warning system - Google Patents

Silo pressure sensitive system, granary storage capacity on-line monitoring and early warning system Download PDF

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Publication number
CN204359481U
CN204359481U CN201520047287.3U CN201520047287U CN204359481U CN 204359481 U CN204359481 U CN 204359481U CN 201520047287 U CN201520047287 U CN 201520047287U CN 204359481 U CN204359481 U CN 204359481U
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data
silo
module
early warning
storage capacity
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Inventor
赵巧转
张洪亮
鲁康
陈实
张晓红
吴芳
徐津
黎帮毅
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Beijing Aerospace Jintai Xingce Technology Co.,Ltd.
Aerospace Long March Launch Vehicle Technology Co Ltd
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BEIJING AEROSPACE JINTAI XINGCE TECHNOLOGY CO LTD
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Abstract

The utility model relates to granary storage capacity on-line monitoring and early warning system and pressure sensitive system thereof, pressure sensitive system comprises multiple pressure transducer, the plurality of pressure transducer interval is laid in grain bin bottom, each pressure transducer has an output cable, after this output cable vertically arrives silo sidewall, use RS485 bus mode at silo sidewall, be connected with the data acquisition transmission equipment outside storehouse by through walls after a class ring attaching wall cable connection.Granary storage capacity on-line monitoring and early warning system, comprise silo pressure sensitive system, data acquisition transmission equipment, and data handling system.Data acquisition transmission equipment passes through each pressure sensor communication of RS485 bus and custom protocol and silo pressure sensitive system.Based on digital pressure sensor output, the utility model can detect current grain storage weight in silo in real time, and by data upload to Surveillance center, carries out dynamic supervision and early warning to all grain depots.

Description

Silo pressure sensitive system, granary storage capacity on-line monitoring and early warning system
Technical field
The utility model relates to silo grain reserves real-time online detection field, specifically, relates to official reserves granary storage capacity on-line monitoring and early warning system and pressure sensitive system thereof.
Background technology
Grain security is the basis of national economy and the guarantee of social stability.Grain security comprises quality safety and Quantity Security.At present, obtain State Grain Reserve Administration quantity and depend on tissue large-scale " taking an inventory of warehouses " work in China, be mainly sampling statistics and calculate, not only the human and material resources of at substantial and fund, and measurement period long (being generally three months), accuracy Shortcomings.Because personal monitoring's measure is difficult to accomplish real-time monitoring, Grain circulation enterprise to do wrong to serve one's friends or relatives etc. behavior time have report, remain incessant after repeated prohibition.Grain Quantity becomes safely the focus that the people pay close attention to, and is more related to national long-term stability.
In granary storage capacity Real-time Measuring Technique, Chinese Patent Application No. be 201310039446.0 " a kind of silo capacity real-time monitoring system " mention, pressure transducer is buried underground at grain outlet, for responding to the change of grain heap pressure, determine whether grain and turnover grain state etc., only need low accuracy pressure sensor, this system calculates granary storage capacity by on-line measurement grain heap volume and grain heap unit weight, although have can remote intelligent control advantage, there is following problem:
One, the measurement of grain face height or volume must be smooth and the prerequisite of not sinking based on silo ground, and in the long-term storage process of grain, land subsidence and local deformation are unavoidable.In addition, for large-scale horizontal warehouse, warehouse length can reach 80m, carrys out accurate Calculation volume difficulty larger based on laser multiple point distance measurement.
Two, (Vibration Condition of surrounding environment is comprised according to storage essential information, the force value etc. of temperature, humidity and pressure transducer in the unit weight that puts in storage of grain, storage time, ventilation time, storehouse) grain heap is put in storage unit weight correction, using the unit weight that revised unit weight is piled as current grain.In above-mentioned storage information, in the vibration of a lot of information such as surrounding environment, ventilation time and storehouse, humiture is be difficult to quantize for the impact of grain moisture content, density etc., and this mode needs the close fit of grain depot custodial staff, cannot prevent lawless person from practising fraud.And the most basic object of the on-line monitoring of Grain Quantity is dynamic supervision, guarantees grain security.
In prior art, although there is the special pressure sensor for on-line checkingi granary storage capacity, as the Chinese utility model patent " a kind of pressure transducer detecting granary storage capacity " that application number is 201020143589.8, can Measurement accuracy grain class granule internal stress, but what it exported is simulating signal, Shortcomings in product cost, pressure calibration and signal transmission form, and the collection of inconvenient data and transmission, also inconvenient construction and installation.
Utility model content
A technical matters to be solved in the utility model is, for the pressure transducer above shortcomings of existing detection granary storage capacity, provides a kind of silo pressure sensitive system.
To achieve these goals, silo pressure sensitive system of the present utility model, comprise multiple pressure transducer, the plurality of pressure transducer interval is laid in grain bin bottom, each pressure transducer has an output cable, after this output cable vertically arrives silo sidewall, use RS485 bus mode at silo sidewall, be connected with the data acquisition transmission equipment outside storehouse by through walls after a class ring attaching wall cable connection.
Above-mentioned silo pressure sensitive system, wherein, each pressure transducer has sensitive element and signal conversion module, and this signal conversion module comprises:
Two-way oscillator, is connected with this sensitive element;
Microcontroller, is connected with this two-way oscillator;
Storer, is connected with this microcontroller; And
Interface chip, is connected with this microcontroller.
Above-mentioned silo pressure sensitive system, wherein, this signal conversion module also comprises a temperature sensor, is connected with this microcontroller.
Another technical matters to be solved in the utility model is, there is provided a kind of fast easy to detect, precision is high, good reliability, cost is low, have excellent long-time stability and anti-corrosion capability, engineering practicability is stronger, is applicable to the extensive installation of grain depot and the granary storage capacity on-line monitoring of use and early warning system.
To achieve these goals, granary storage capacity on-line monitoring of the present utility model and early warning system, comprise above-mentioned silo pressure sensitive system, data acquisition transmission equipment, and data handling system.Data acquisition transmission equipment passes through each pressure sensor communication of RS485 bus and custom protocol and silo pressure sensitive system.Described data handling system comprises data memory module, control module and display module, data memory module is for storing the Various types of data relevant to silo, and described data memory module has an external data storage module be connected with described data acquisition transmission equipment; Control module, according to the difference selecting Controlling model, carries out related operation from described data memory module extracted data; Display module is connected with described control module, the Various types of data relevant to silo is shown.
Above-mentioned granary storage capacity on-line monitoring and early warning system, wherein, described data memory module also comprises the internal data store module of the internal data of a storage setting.
Above-mentioned granary storage capacity on-line monitoring and early warning system, wherein, described display module comprises data display module and numerical value warning module.Data display modules exhibit comprises the real time data of silo data, sensing data.The early warning information of putting out cereal in numerical value warning module display silo.
Above-mentioned granary storage capacity on-line monitoring and early warning system, wherein, described display module also includes human-computer interaction module, and this human-computer interaction module is connected with described data memory module again.
Above-mentioned granary storage capacity on-line monitoring and early warning system, wherein, described data handling system is grain depot Intranet platform.
Above-mentioned granary storage capacity on-line monitoring and early warning system, wherein, described data handling system is Internet Server.
Beneficial functional of the present utility model is: collection and the transmission of silo pressure sensitive system data adopt RS485 wire transmission mode, this mode is relative to wireless transmission method ratio, and hardware configuration is simple, and cost is low, not by the impact of grain heap decay, wall shielding etc., data transmission credibility is high.The quantity of stored grains in granary on-line monitoring that the utility model proposes and early warning system, only need measure a kind of physical quantity, and namely the pressure information of grain heap bottom, in conjunction with warehouse size and grain storage kind, can calculate granary storage weight in real time.Grain heap pressure is only relevant with grain weight change, and the moisture piled with grain, humiture etc., without direct relation, also do not pile the impact of sedimentation, grain face height change and land subsidence etc. by grain.Measuring Time can be set to continuous coverage or determine interval measurement, does not need grain depot personnel to safeguard between the storage life.By the setting of data handling system, measuring command can be sent to any warehouse gateway, current grain storage weight can be obtained.When Grain Quantity is undergone mutation, warehouse gateway reports in time, thus the dynamic supervision realized national granary storage capacity and emergency advance warning.It is good that native system criticizes productivity, fast easy to detect, and precision is high, good reliability, and cost is low, has excellent long-time stability and anti-corrosion capability, and engineering practicability is stronger, is applicable to extensive installation and the use of grain depot.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of silo pressure sensitive system of the present utility model;
Fig. 2 is the structured flowchart of granary storage capacity on-line monitoring of the present utility model and early warning system;
Fig. 3 is the structural drawing of the signal conversion module of pressure transducer in Fig. 1;
Fig. 4 is the data acquisition transmission equipment structured flowchart in Fig. 2;
Fig. 5 is the data handling system structured flowchart in Fig. 2;
Fig. 6 is the functional block diagram of the data handling system in Fig. 2.
Wherein, Reference numeral
100-silo
101-wall-through hole
10-silo pressure sensitive system
11-pressure transducer
111-output cable
112-signal conversion module
12-paste wall cable
20-data acquisition transmission equipment
30-data handling system
31-data memory module
311-internal data store module
312-external data storage module
313-cache module
32-control module
33-display module
331-data display module
332-numerical value warning module
333-human-computer interaction module
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in detail, further to understand the purpose of this utility model, scheme and effect, but not as the restriction of the utility model claims protection domain.
Consult Fig. 1, as shown in the figure, silo pressure sensitive system 10 of the present utility model, comprise multiple pressure transducer 11, the plurality of pressure transducer 11 interval is laid in bottom silo 100, each pressure transducer 11 has an output cable 111, after this output cable 111 vertically arrives silo sidewall, RS485 bus mode is used at silo sidewall, by a class ring attaching wall cable 12 connect rear through walls (specifically, be through the wall-through hole 101 on silo 100) be connected with the data acquisition transmission equipment 20 outside storehouse, it should be noted that, class annular herein refers to the arrangement form pasting wall cable, and the concrete arrangement form pasting wall cable is relevant with the shape of silo, if silo is circle storehouse, namely the layout of pasting wall cable is roughly annular (can be considered class annular), if storehouse, the silo side of being, paste wall cable and be square, but still be considered as class annular.
The concrete structure of Behaviours for Pressure Transducers, can See patent number be 201020143589.8 Chinese utility model patent, pressure transducer in the utility model and the patent No. are that the circuit theory of pressure transducer in the Chinese utility model patent of 201020143589.8 is different: specifically, pressure transducer 11 of the present utility model has signal conversion module 112, as shown in Figure 3, signal conversion module 112 comprises two-way oscillator, microcontroller, storer and interface chip.Sensitive element C1, C2 of two-way oscillator and pressure transducer 11 (it is interior electrode, external electrode in the Chinese utility model patent of 201020143589.8 that sensitive element herein corresponds to the patent No.) are connected; Microcontroller is connected with this two-way oscillator; Storer is connected with this microcontroller; Interface chip is connected with this microcontroller.Preferably, signal conversion module also 112 comprises a temperature sensor, is connected with microcontroller.
The circuit working principle of signal conversion module 112: the sensitive element of pressure transducer forms two capacity plate antennas C1, C2.Sensitive diaphragm (patent No. is the flexible sheet in the Chinese utility model patent of 201020143589.8) compressive deformation causes C1, C2 value to change, C1, C2 are wired to circuit board, two periodic oscillation loops are formed with two-way oscillator (MAX7556), export the square-wave signal (being respectively f1, f2) with capacitance respective frequencies, and accurately measured by microcontroller.During sensor production, special calibration software is utilized to carry out unified parameters configuration and storage, demarcate in different pressures situation, carry out temperature compensation at different temperatures, obtain the mapping relations of inside and outside capacitive differential and actual pressure, and store corresponding mapping parameters to storer (EEROM).And by being demarcated as the unique device coding of each sensor setting and address.
When pressure transducer 11 works, microcontroller calculates current pressure according to mapping parameters, and exports the pressure signal of RS485 mode.The effect of temperature sensor is for the temperature survey in the temperature compensation of pressure transducer and storehouse.In order to ensure antijamming capability, power unit have employed isolation module and linear voltage stabilization chip to obtain stable voltage.
As can be seen from content above, the pressure transducer adopted in the utility model is digital pressure sensor output, exports as RS485 mode, adopts RS485 bus to be connected between sensor.Compare original analog pressure sensor output, demarcation, production efficiency significantly can improve, and can reduce cable use amount and construction workload.Digital pressure sensor output of the present utility model possesses the advantages such as low-power consumption, low cost, high sensitivity, excellent long-time stability, constructability installation.
Consult Fig. 2, granary storage capacity on-line monitoring of the present utility model and early warning system, comprise above-mentioned silo pressure sensitive system 10, data acquisition transmission equipment 20, and data handling system 30.Data acquisition transmission equipment 20 is communicated with each pressure transducer 11 of silo pressure sensitive system by RS485 bus and custom protocol.In system of the present utility model, collection and the transmission of storehouse pressure sensor data adopt wire transmission mode.This mode is relative to wireless transmission method ratio, and hardware configuration is simple, and cost is low, and not by the impact of grain heap decay, wall shielding etc., data transmission credibility is high.Inner sensor 485 bus modes in storehouse are connected with Data Data collect and transmit equipment 20 (i.e. data acquisition gateway) outside storehouse.Between pressure transducer 11 and gateway, communication adopts custom protocol.By gateway as main frame, timing sends reading command to sensor, and current pressure is uploaded to gateway by pressure transducer, after reading pressure information, calculates warehouse grain storage quantity, is then uploaded to data handling system 30.Data handling system in the utility model can be grain depot Intranet platform, also can be Internet Server, as preferably embodiment, the warehouse grain storage quantity that data acquisition transmission equipment 20 calculates is by access in radio grain depot Intranet platform or be uploaded to Internet Server by CDMA module.
The effect of data acquisition transmission equipment 20 is pressure informations that timing acquiring is arranged on silo inside, for gathering the pressure information of all the sensors in storehouse, and transmits it to grain depot Intranet or Internet Server.Possess the functions such as data are preserved, abnormal judgement simultaneously.In conjunction with consulting Fig. 4, the MCU of data acquisition transmission equipment 20 adopts Rabbit 3000 microprocessor of Rabbit company; Be characterized in without electromagnetic interference (EMI), maximum clock speed 55M Hz, 6 serial ports (band IrDA), 56 digital I/O, integration scrambler, width modulation exports, pulse capture and measurement capability, with the real time clock of backup battery, integrated interface, ultralow electric source modes.Data acquisition transmission equipment 20 is communicated with bottom pressure transducer 11 by RS485 module and custom protocol, and provides 5V power supply for pressure transducer.Communicated with top service device by GPRS module, or by trawl performance module access grain depot LAN (Local Area Network), with center host communication.Meanwhile, external ROM is used for saving historical data, and is convenient to long-term observation, analyzes the change of grain heap loss in weight.When cell pressure signal is undergone mutation at short notice, report early warning in time.
In conjunction with consulting Fig. 5, data handling system 30 (no matter being grain depot Intranet platform or Internet Server) comprises data memory module 31, control module 32 and display module 33.Data memory module 31 is for storing the Various types of data relevant to silo, and data memory module 31 has internal data store module 311, external data storage module 312 and cache module 313, internal data store module 311 is for storing the internal data of setting (as alarm parameters, run configuration etc.), external data storage module 312 is connected with data acquisition transmission equipment 20, is mainly used in pressure store sensing data.Control module 32 is for the difference according to selection Controlling model, and carry out related operation from data memory module 31 extracted data, control module 32 uses xlm to organize different Controlling model.Display module 33 is connected 32 with control module, for the Various types of data relevant to silo is shown, display module 33 comprises data display module 331, numerical value warning module 332 and human-computer interaction module 333, data display module 331 comprises the real time data of silo data, sensing data for showing, numerical value warning module 332 is for showing the early warning information of putting out cereal in silo, human-computer interaction module 333 is connected with data memory module 31 again, to facilitate man-machine interactive operation.
In conjunction with consulting Fig. 6, can find out, data handling system 30 major function has 2 points:
(1) be responsible for analyzing the data collected between each storehouse for grain, etc., and according to certain Grain Quantity computation model, in conjunction with warehouse size, grain variety etc., calculate the grain storage quantity between each storehouse for grain, etc.
(2) all Data Integrations are analyzed, the different rights of country, province, city, county, district and different user roles etc. is set respectively, provides corresponding data to different supvrs, in time early warning is carried out to abnormal grain feelings.
Comprehensively above-mentionedly can to find out, granary storage capacity on-line monitoring of the present utility model and early warning system are a kind of granary storage capacity on-line monitoring systems based on pressure transducer, current grain storage weight in silo can be detected in real time, and by data upload to Surveillance center, finally realize data national network, dynamic supervision and early warning are carried out to all grain depots.Compare " taking an inventory of warehouses " mode based on complicate statistics sampling, this system data is real-time, and measuring accuracy is higher, can save a large amount of manpower and materials.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.

Claims (9)

1. a silo pressure sensitive system, comprise multiple pressure transducer, it is characterized in that, the plurality of pressure transducer interval is laid in grain bin bottom, each pressure transducer has an output cable, after this output cable vertically arrives silo sidewall, use RS485 bus mode at silo sidewall, be connected with the data acquisition transmission equipment outside storehouse by through walls after a class ring attaching wall cable connection.
2. silo pressure sensitive system according to claim 1, it is characterized in that, each pressure transducer has sensitive element and signal conversion module, and this signal conversion module comprises:
Two-way oscillator, is connected with this sensitive element;
Microcontroller, is connected with this two-way oscillator;
Storer, is connected with this microcontroller; And
Interface chip, is connected with this microcontroller.
3. silo pressure sensitive system according to claim 2, it is characterized in that, this signal conversion module also comprises a temperature sensor, is connected with this microcontroller.
4. granary storage capacity on-line monitoring and an early warning system, is characterized in that, comprising:
Silo pressure sensitive system in claim 1-3 described in any one;
Data acquisition transmission equipment, by each pressure sensor communication of RS485 bus and custom protocol and silo pressure sensitive system; And
Data handling system;
Wherein, described data handling system comprises:
Data memory module, stores the Various types of data relevant to silo, and described data memory module has an external data storage module be connected with described data acquisition transmission equipment;
Control module, according to the difference selecting Controlling model, carries out related operation from described data memory module extracted data; And
Display module, is connected with described control module, the Various types of data relevant to silo is shown.
5. granary storage capacity on-line monitoring according to claim 4 and early warning system, is characterized in that, described data memory module also comprises the internal data store module of the internal data of a storage setting.
6. granary storage capacity on-line monitoring according to claim 4 and early warning system, is characterized in that, described display module comprises:
Data display module, shows the real time data comprising silo data, sensing data; And
Numerical value warning module, the early warning information of putting out cereal in display silo.
7. granary storage capacity on-line monitoring according to claim 6 and early warning system, is characterized in that, described display module also includes human-computer interaction module, and this human-computer interaction module is connected with described data memory module again.
8. granary storage capacity on-line monitoring according to claim 4 and early warning system, is characterized in that, described data handling system is grain depot Intranet platform.
9. granary storage capacity on-line monitoring according to claim 4 and early warning system, is characterized in that, described data handling system is Internet Server.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105300490A (en) * 2015-11-16 2016-02-03 南京财经大学 Weight measuring method of wheat in horizontal warehouse
CN105606286A (en) * 2016-03-14 2016-05-25 山东华建仓储装备科技有限公司 Large warehousing equipment material pressure test method and large warehousing equipment
CN105865683A (en) * 2015-01-23 2016-08-17 航天长征火箭技术有限公司 Grain bin pressure sensing system and grain bin reserve online monitoring and early warning system
CN108845847A (en) * 2018-05-03 2018-11-20 山东浪潮通软信息科技有限公司 A kind of method and device showing measurement data
CN109462658A (en) * 2018-12-10 2019-03-12 江苏科技大学 A kind of silo monitoring management system and its implementation
CN110823346A (en) * 2018-08-10 2020-02-21 河南工业大学 Granary detection method and system based on bottom surface single-circle standard deviation index model
CN112461665A (en) * 2020-12-02 2021-03-09 华北科技学院 High-precision measurement device and test method for interface pressure distribution of silo test model

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865683A (en) * 2015-01-23 2016-08-17 航天长征火箭技术有限公司 Grain bin pressure sensing system and grain bin reserve online monitoring and early warning system
CN105300490A (en) * 2015-11-16 2016-02-03 南京财经大学 Weight measuring method of wheat in horizontal warehouse
CN105606286A (en) * 2016-03-14 2016-05-25 山东华建仓储装备科技有限公司 Large warehousing equipment material pressure test method and large warehousing equipment
CN105606286B (en) * 2016-03-14 2018-07-10 山东华建仓储装备科技有限公司 A kind of large warehoused equipment material pressure test method and a kind of large warehoused equipment
CN108845847A (en) * 2018-05-03 2018-11-20 山东浪潮通软信息科技有限公司 A kind of method and device showing measurement data
CN110823346A (en) * 2018-08-10 2020-02-21 河南工业大学 Granary detection method and system based on bottom surface single-circle standard deviation index model
CN110823346B (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 index model
CN109462658A (en) * 2018-12-10 2019-03-12 江苏科技大学 A kind of silo monitoring management system and its implementation
CN112461665A (en) * 2020-12-02 2021-03-09 华北科技学院 High-precision measurement device and test method for interface pressure distribution of silo test model

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20151230

Address after: 100176, Beijing economic and Technological Development Zone, Yizhuang, Fairview street, No. 6, block A, six

Patentee after: Aerospace Long March Launch Vehicle Technology Co.ltd.

Patentee after: Beijing Aerospace Jintai Xingce Technology Co.,Ltd.

Address before: 100176, Beijing economic and Technological Development Zone, Daxing District, Fairview street, No. 6, block A, nine

Patentee before: Beijing Aerospace Jintai Xingce Technology Co.,Ltd.

C41 Transfer of patent application or patent right or utility model