CN201193948Y - Grain storage situation monitoring system for barn - Google Patents
Grain storage situation monitoring system for barn Download PDFInfo
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- CN201193948Y CN201193948Y CNU2008200800454U CN200820080045U CN201193948Y CN 201193948 Y CN201193948 Y CN 201193948Y CN U2008200800454 U CNU2008200800454 U CN U2008200800454U CN 200820080045 U CN200820080045 U CN 200820080045U CN 201193948 Y CN201193948 Y CN 201193948Y
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Abstract
The utility model discloses a grain storage situation detecting system for a barn, which comprises a remote monitoring terminal and at least a detecting device, and a detecting device is arranged in a barn; wherein, the detecting device comprises a casing which is provided with a gas collecting inlet and a gas collecting outlet, a detecting circuit is arranged in the casing, the detecting circuit is connected with the remote monitoring terminal, at least one electromagnetic valve is arranged beside each casing of the detecting device or in the casing, the valve stem of the electromagnetic valve is connected with the detecting circuit in the corresponding detecting device, one gas flow end of the electromagnetic valve is connected with the gas collecting inlet on the casing of the corresponding detecting device through a gas pipe, the other gas flow end is connected with a gas pipe, and the input end of the gas pipe is arranged at the corresponding collecting point. The grain storage situation detecting system for a barn is suitable for early detecting stored grain eumycete and insects and estimating the ventilation effect to guarantee the safety of the barn managing staffs.
Description
Technical field
The utility model relates to a kind of monitoring system, specifically, relates to a kind of monitoring system of carrying out control survey at the grain that caused by fungi and insect heap humiture and carbon dioxide content situation of change.
Background technology
China is a grain-production big country, and grain yield was more than 9,500 hundred million jin in 2000, and the occupancy volume per person is more than 700 jin, breaks through 10,000 hundred million jin of high pointes in 2007.The grain storage quality safety is concerning Chinese national economy development and social stability, and closely bound up with the people's livelihood, it obtains showing great attention to of the leader of Party and government always.Existing country of China and local grain depot are thousands of at present, are distributed in all parts of the country.Cause that in China the loss of grain storage mainly contains mouse, insect and fungi, in recent years, along with the increase of China's grain depot construction funds invested, the grain storage condition has obtained tangible improvement, some The application of new technique in addition, the harm of China grain storage mouse and insect can obtain effectively controlling in advance.But the harm of grain storage fungi is not resolved always, and it has influenced the stored grain safety of China.At present, China grain depot China Oil and Food Import and Export Corporation feelings detect mainly carries out the prediction of grain feelings with the method for surveying the grain temperature, this method is used for the prediction of grain feelings and has following some deficiency: 1) grain is a kind of poor conductor, predict the grain feelings by the method for grain being carried out thermometric, exist serious lag, make the staff can not in time take measures to handle; 2) some fungi to produce heat in growth course very low, as Aspergillus glaucus, so can't carry out the prediction of comprehensive grain storage fungi harm with present survey grain temperature method; 3) this survey grain temperature method seriously is subjected to such environmental effects, and precision is not high; 4) the mensuration temperature range is little.Therefore, design a kind of fast, accurately, grain condition monitoring system that sensing range is big, to solving the problem that present China grain feelings context of detection exists and reducing the grain storage loss, have crucial meaning.
The utility model content
The purpose of this utility model is to provide a kind of silo grain storage condition monitoring system, this system can carry out carbon dioxide content and humiture in proper order to a plurality of collection points in the silo and detect, the accuracy of detection height, can in time forecast the grain storage situation of whole silo, strong guarantee the grain storage quality, improved China's stored grain safety rank.
In order to achieve the above object, the utility model has adopted following technical scheme:
A kind of silo grain storage condition monitoring system, it is characterized in that: it comprises a remote monitoring terminal and at least one pick-up unit, a pick-up unit is arranged in the silo, wherein: this pick-up unit comprises housing, this housing is provided with gas collecting inlet and gas collecting outlet, be provided with testing circuit in this housing, this testing circuit links to each other with this remote monitoring terminal, in the housing side of each pick-up unit or the housing at least one solenoid valve is set, the valve rod of this solenoid valve links to each other with testing circuit in corresponding this pick-up unit, a gas stream go side of this solenoid valve links to each other with gas collecting inlet on corresponding this pick-up unit housing through tracheae, another gas stream go side of this solenoid valve is connected with tracheae, and the output port of this tracheae is placed on place, corresponding collection point.
The utility model has the advantages that:
1, according to the actual detected requirement, the utility model silo grain storage condition monitoring system can detect in proper order to a plurality of collection points in the same silo, thereby, make the forecast of grain feelings more accurately and timely with the grain storage situation that the carbon dioxide content and the humiture of the detection of a plurality of collection points are estimated this silo.And the gas collecting of each collection point is controlled by retaining valve, so operating personnel can select the collection point of pre-detection according to the needs that detect.
2, consider that air pump belongs to power component, in the process of impeller high speed rotating suction sample gas, air pump meeting distribute heat, the heat that distributes can exert an influence to the temperature of sample gas, so, the rearmounted mode of pump is adopted in the design of the gas circuit of pick-up unit in the utility model, be about to the least significant end that micro air pump is arranged on gas circuit and (refer to be arranged on air strainer, first detects air chamber, second detects the back of air chamber), adopt the forced-ventilated mode that sample gas is sampled, this gas circuit design not only can reach the purpose of draws sample gas, and can not influence the degree of accuracy that gas temperature detects.
3, detect the probe of the air intake opening of air chamber owing to first away from the Temperature Humidity Sensor that is provided with in it, the probe of Temperature Humidity Sensor is parallel to first air-flow direction that detects in the air chamber and places, and first air intake opening and the gas outlet of detecting air chamber shifts to install, the design that this air chamber structure and probe are put makes that entering first gas flow rate that detects air chamber slows down, Temperature Humidity Sensor fully contacts the gas in the air chamber, thereby makes the detection of Temperature Humidity Sensor more accurate.
4, because fungi or insect can produce a large amount of CO2, water and heat in grain heap growth course, so, the utility model is judged the harm of fungi in the grain heap or insect by the variation that detects CO2, temperature and humidity in the grain heap, there is not hysteresis quality in the result that the utility model dopes, make that the staff can take measures to handle in time, and carry out the grain feelings by the utility model and detect and to be subjected to Effect of Environmental less, sensing range is big.
5, the utility model is applicable to the detection that produces the very low grain storage fungi harm of heat, produces the very low Aspergillus glaucus of heat in the growth course as detecting.
6, the utility model silo grain storage condition monitoring system is easy and simple to handle, and detection speed is fast, and testing result is accurate, can satisfy the needs that China's grain depot grain feelings detect.
The utility model silo grain storage condition monitoring system is applicable to ventilation effect evaluation in grain storage fungi and pest damage early detection, the silo, has ensured grain depot managerial personnel's safety.
Description of drawings
Fig. 1 is the composition synoptic diagram of the utility model silo grain storage condition monitoring system;
Fig. 2 is the composition block diagram of the external devices of testing circuit and connection thereof;
Fig. 3 is the gas circuit connection diagram in the pick-up unit;
Fig. 4 is the structural representation that first in the pick-up unit detects air chamber;
Fig. 5 is the circuit theory diagrams of testing circuit;
Fig. 6 is an embodiment synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model silo grain storage condition monitoring system comprises that a remote monitoring terminal 100 and 300, one pick-up units 300 of at least one pick-up unit are arranged in the silo 500.This pick-up unit 300 comprises the housing (not shown), this housing is provided with gas collecting inlet (not shown) and gas collecting outlet (not shown), be provided with testing circuit in this housing, this testing circuit links to each other with this remote monitoring terminal 100, at least one solenoid valve 400 (shown in Fig. 1 is the other situation that solenoid valve is installed of housing) is set in the housing side of each pick-up unit 300 or the housing, the valve rod of this solenoid valve 400 (is a con end shown in Figure 1, among Fig. 1 only three links to a solenoid valve carried out the symbol mark, the mark of other solenoid valve omits) link to each other with testing circuit in corresponding this pick-up unit 300, a gas stream go side of this solenoid valve 400 (be shown in Figure 1 b end) links to each other with gas collecting inlet on corresponding these pick-up unit 300 housings through tracheae, another gas stream go side of this solenoid valve 400 (being a end shown in Figure 1) is connected with tracheae, and the output port of this tracheae is placed on place, corresponding collection point.As shown in Figure 1, n solenoid valve 400 all installed on pick-up unit 300 sides in each silo 500, a gas stream go side of this n solenoid valve 400 (be shown in Figure 1 b end) is in parallel and is connected to gas collecting porch on pick-up unit 300 housings, another gas stream go side of this n solenoid valve 400 (being a end shown in Figure 1) all is connected with tracheae, and the input port of this tracheae is placed on n different place, collection point in the silo.
As shown in Figure 2, this testing circuit comprises single-chip microcomputer 301, Temperature Humidity Sensor 302, carbon dioxide sensor 303 and micro air pump 304.This Temperature Humidity Sensor 302 all links to each other with single-chip microcomputer 301 with carbon dioxide sensor 303, this single-chip microcomputer 301 links to each other with micro air pump 304 by first power drive unit 305, this single-chip microcomputer 301 links to each other with the valve rod (being con end shown in Figure 1) of solenoid valve 400 by second power drive unit 401, and this single-chip microcomputer 301 links to each other with remote monitoring terminal 100 by RS232 interface or usb 1 01.The single-chip microcomputer 301 main break-make control of solenoid valve 400, the tasks such as extraction collection, data processing and data access of gaseous sample be responsible for, Temperature Humidity Sensor 302 is used for detecting the humiture situation of grain heap air, carbon dioxide sensor 303 is used for detecting the carbon dioxide content of grain heap air, and micro air pump 304 is used for the silo air is drawn in the air chamber, so that each sensor is measured gas.When practical application, single-chip microcomputer 301 can be selected STC series STC12C5410AD microprocessor for use, micro air pump 304 can be selected GMPA-3 type micro air pump for use, Temperature Humidity Sensor 302 can be selected the integrated Temperature Humidity Sensor of SHT7X numeral for use, the detected temperatures scope of this sensor is big, and be the important indicator that characterizes grain respiratory function power because of carbon dioxide content, measuring accuracy to carbon dioxide is had relatively high expectations, so carbon dioxide sensor 303 can be selected the infrared CO2 sensor measurement of the 6004 types module of U.S. GE company for use.For the gas that makes extraction can not flow backwards back in the silo, solenoid valve 400 can be selected retaining valve for use, when solenoid valve 400 is opened, the air at place, collection point is inhaled into from the tracheae input port in the silo, behind two gas stream go sides of solenoid valve 400 (holding end by a), be drawn in the pick-up unit 300 to b, when solenoid valve 400 cut out, the air at place, collection point can not be drawn in the pick-up unit 300.
The utility model silo grain storage condition monitoring system carries out sampled measurements to the gas in the silo, therefore needs the accurate gas circuit of a cover to come gas is extracted.As shown in Figure 3, also be provided with air strainer 306, first in pick-up unit 300 housings and detect the air chamber 307 and the second detection air chamber 308, Temperature Humidity Sensor 302 is located at first and is detected in the air chamber 307, carbon dioxide sensor 303 is located at second and is detected in the air chamber 308, it is continuous that this air strainer 306, first detects air chamber 307, the second detection air chamber 308, micro air pump 304 passes through air flue 309, and be located between gas collecting inlet and the gas collecting outlet.
In the gas circuit design, the installation of micro air pump can have dual mode: first kind is that micro air pump 304 is installed in gas circuit foremost, promptly be installed in air strainer 306 and first and detect between the air chamber 307, it is responsible for the gas suction is equipped with in the air chamber of sensor; Second kind is the least significant end that micro air pump 304 is installed in gas circuit, promptly second detects after the air chamber 308, and it is responsible for gas suction gas circuit, and the gas in the gas circuit is forced to discharge whole gas circuit.When practical application, consider that micro air pump 304 belongs to power component, it mainly is the impeller that leans on high speed rotating that air pump extracts gas, impeller can generate heat in rotary course, and the heat that distributes may make the gas temperature of suction rise, will certainly influence the measurement of gas temperature, therefore, in the utility model, micro air pump 304 in the pick-up unit 300 adopts the second way to install, as shown in Figure 3, the gas collecting inlet links to each other through the air intake opening of air flue 309 with air strainer 306, the gas outlet of air strainer 306 links to each other with first air intake opening that detects air chamber 307 through air flue 309, first gas outlet of detecting air chamber 307 links to each other with second air intake opening that detects air chamber 308 through air flue 309, second gas outlet of detecting air chamber 308 links to each other through the input port of air flue 309 with micro air pump 304, and the corresponding gas collecting outlet of the delivery outlet of micro air pump 304 is placed.As seen, micro air pump 304 has been arranged on the least significant end of gas circuit, sample gas by each sensor measurement after just through the housing of micro air pump 304 delivery detection devices 300, we are called forced-ventilated gas circuit form with this gas circuit.
The purpose that air chamber is connected in the gas circuit mainly is to be used for cushioning mobile sample gas, thereby provides a stable sampled measurements environment for the sensor in the air chamber.6004 type carbon dioxide sensors 303 itself have air chamber (being the second detection air chamber 308 shown in Figure 3), and SHT7X Temperature Humidity Sensor 302 itself does not have air chamber, so in the utility model, the first detection air chamber 307 that Temperature Humidity Sensor 302 is installed in it has been carried out structural design.Consider that air-flow is bigger to the influence of temperature and humidity measurement, therefore, as shown in Figure 4, detect the probe 3021 of the air intake opening 3071 of air chamber 307 with first, and make the probe 3021 of Temperature Humidity Sensor 302 be parallel to first air-flow directions that detect in the air chamber 307 to place away from the Temperature Humidity Sensor 302 that is provided with in it.For gas is stopped in air chamber for a long time, first air intake opening 3071 that detects air chamber 307 is shifted to install with gas outlet 3072, as Fig. 4, air intake opening 3071 is lower, and gas outlet 3072 is higher, and air intake opening 3071 is not oppositely arranged with gas outlet 3072.
As shown in Figure 5, in testing circuit, the IO pin P1.0/ADC0 of single-chip microcomputer U1 (being the single-chip microcomputer 301 of Fig. 2) and the output terminals A VOUT of carbon dioxide sensor 303 join, and two the IO pin P2.5 in addition of single-chip microcomputer U1 and PCA3/P2.4 join with serial clock input end SCK, the serial data input/output terminal DATA of Temperature Humidity Sensor 302 respectively.Generally, sensor has requirement to gas flow, and therefore excessive the or too small measuring accuracy that all can influence sensor of gas flow, has designed the scalable flow and micro air pump 304 has been carried out first power drive unit 305 of power drive in testing circuit.First power drive unit 305 is a PMOS transistor V1, the grid of this PMOS transistor V1 is gone up an IO pin P3.7/PCA0 corresponding with it through a resistance R 2 with single-chip microcomputer U1 and is joined, the source ground of this PMOS transistor V1, the drain electrode of this PMOS transistor V1 and the control end MOTOR of micro air pump 304 join.Single-chip microcomputer U1 is the rotating speed of voltage-regulation air pump by control first power drive unit 305, thus the size of gas flow in the control gas circuit.Second power drive unit 401 is made up of chip for driving U2 (selecting the ULN2803 chip for use), and the input end of this chip for driving U2 and single-chip microcomputer U1 go up IO pin corresponding with it and join, and the output terminal of this chip for driving U2 and the valve rod CON of solenoid valve 400 join.Fig. 5 shows the situation that is provided with 6 road acquisition channels for pick-up unit, and promptly a pick-up unit 300 is provided with 6 solenoid valves 400, and the valve rod CON0～CON5 of solenoid valve 400 joins by IO pin P1.6～P1.1 of chip for driving U2 and single-chip microcomputer U1.
As depicted in figs. 1 and 2, each pick-up unit 300 also is equipped with LCDs 200, this LCDs 200 is provided with button 202, and this LCDs 200 and button 202 link to each other by the single-chip microcomputer 301 in the testing circuits in interface circuit 201 and the pick-up unit 300.Single-chip microcomputer 301 can link to each other with grain condition monitoring master station 600 by RS485 interface or CAN bus 601.In addition, can be battery and set battery charge control chip (as the BQ2057W chip), also Clock management chip (as DS1302) can be set in circuit, so that the time accuracy that shows on the LCDs 200 is not influenced by power down.Pick-up unit 300 can set emergency warning lamp, in time to inform staff's silo present situation.
In the utility model, pick-up unit 300 can adopt wall-hanging structure, be about to that this pick-up unit 300 is installed in well-ventilated in the silo, on the wall being convenient to operate and observe, and LCDs 200 be set in that pick-up unit 300 is other, so that operating personnel check at any time.The quantity of the solenoid valve 400 that pick-up unit 300 sets can be for arbitrarily, and is general, and according to detecting needs, configurable have solenoid valves (i.e. 16 passages, 24 passages, 32 passages, 64 passages or 128 passages etc.) such as 16,24,32,64,128.
At present, the grain storage storehouse type of China mainly contains chamber storehouse, silo, silo, and chamber storehouse quantity is maximum.Being applied to chamber storehouse with the utility model below is example, describes the course of work of the present utility model.
This chamber storehouse is the large storehouse of 36m * 24m * 6m, for each horizontal warehouse 700,9 groups of collection positions 800 are set in horizontal warehouse altogether, 9 groups of collection positions are evenly distributed in the storehouse with 3 * 3 matrix forms, as shown in Figure 6, the collection position 800 that is positioned at east, west, the outside, the north respectively apart from horizontal warehouse east, 4 meters in west, north interior wall, be positioned at collection position 800 outside the south apart from 2 meters of horizontal warehouse south interior walls.Every group of collection position 800 is provided with 3 collection points, and these 3 collection points are vertical distribution from low to high, and they are surperficial at a distance of 200mm, 1700mm, 3200mm with grain respectively.An outside is set in each horizontal warehouse is furnished with the pick-up unit 300 of 27 acquisition channels, each pick-up unit 300 side is provided with a LCDs 200, and the pick-up unit 300 in all storehouses links to each other with the remote monitoring terminal 100 that is positioned at the strange land.For each pick-up unit 300, a gas stream go side of all solenoid valves 400 (being b end shown in Figure 1) is connected in the gas collecting porch of pick-up unit 300 by tracheae, another gas stream go side of all solenoid valves 400 (be shown in Figure 1 a end) all is connected with tracheae, and with the output port of these tracheaes respectively correspondence be placed on place, above-mentioned 27 collection points.
During use, on LCDs 200, press " machine open/close " key, the pick-up unit start, LCDs 200 shows main interface, battery is to all components and parts power supplies, operating personnel carry out initial setting up (if do not carry out initial setting up, then detecting by default setting) by 202 pairs of pick-up units of button 300.After setting completed, by " test " key, pick-up unit 300 begins to detect.Single-chip microcomputer 301 makes micro air pump 304 start and fast turn-around, residual air in the gas circuit is carried out emptying, after residual gas is drained, control micro air pump 304 turns round with suitable speed, and simultaneously, single-chip microcomputer 301 makes 27 solenoid valves 400 be independent open mode successively, as the solenoid valve that makes 1 passage is for opening, the solenoid valve that then makes other 26 passages is for closing, and therefore, the gas circuits that the tracheae of the air at each place, collection point by separately enters in the pick-up unit 300 in proper order detect.For each passage, the air of grain heap is drawn in the air flue 309 from the gas collecting inlet with the low discharge form, then pass through air strainer 306, the airborne impurity of 306 pairs of suction of air strainer carries out filtering, reduce the influence of impurity to the sensor measurement precision, the air of suction enters first successively and detects the air chamber 307 and the second detection air chamber 308 then.Detect in the air chamber 307 first, 302 pairs of gases of Temperature Humidity Sensor carry out the measurement of temperature and humidity, in measuring process, single-chip microcomputer U1 (being the single-chip microcomputer 301 of Fig. 2) is to the serial clock input end SCK of Temperature Humidity Sensor 302 input clock control signal, allow the clock synchronised of Temperature Humidity Sensor 302 and single-chip microcomputer U1, and single-chip microcomputer U1 is to the serial data input/output terminal DATA input control order of Temperature Humidity Sensor 302 and the measurement of control moisture temperature sensor 302, after Temperature Humidity Sensor 302 measurements finish, it gives single-chip microcomputer U1 by serial data input/output terminal DATA with the humiture data transmission that records, and single-chip microcomputer U1 stores and handles these humiture data.Detect in the air chamber 308 second, 303 pairs of gases of carbon dioxide sensor carry out the measurement of carbon dioxide content, carbon dioxide sensor 303 is given single-chip microcomputer U1 by output terminals A VOUT with the carbon dioxide content data transmission that records, and single-chip microcomputer U1 stores and handles these carbon dioxide content data.After the measurement of gas in two air chambers finished, the rotating speed of single-chip microcomputer U1 control micro air pump 304, gas in the air flue 309 is discharged from the gas collecting outlet through micro air pump 304, thereby a passage is finished detection, continue next passage is detected.After single-chip microcomputer U1 handles humiture data and carbon dioxide content data, single-chip microcomputer U1 with the humiture that records and carbon dioxide content data presentation on LCDs 200, and the testing result according to a plurality of passages demonstrates a final silo grain storage situation evaluation result, checks for operating personnel.
In actual measurement, the staff can idle running flow and the parameters such as sampling flow, idle period to air pump be provided with by " setting " key on the LCDs 200, thereby makes pick-up unit carry out sampled measurements according to parameter value is set to gas.And the staff can be provided with the collection point quantity that detects in advance as required, for example, the air of 20 collection points in 27 collection points is detected.In addition, when pick-up unit is in open state, the staff can be at any time by " consulting " key and up and down key all measurement result information are consulted, as detection time, detection site, grain variety etc.
In the utility model, the staff can be in remote monitoring terminal control and the grain storage detection case of checking all silos 500, and all pick-up units 300 also can be reported testing result information to grain condition monitoring master station 600 by RS485 interface or CAN bus 601.
The utility model has the advantages that:
1, according to actual testing requirement, the utility model grain storage situation monitoring system for barn can be to same grain A plurality of collection points in the storehouse are detected in proper order, thus the carbon dioxide content and the temperature that detect with a plurality of collection points Humidity is estimated the grain storage situation of this silo, so that the forecast of grain feelings more accurately and timely. And, each collection The gas collecting of point is controlled by check valve, so operating personnel can select according to the needs that detect Select the collection point of pre-detection.
2, consider that air pump belongs to power component, in the process of impeller High Rotation Speed suction sample gas, Air pump meeting distribute heat, the heat that distributes can exert an influence to the temperature of sample gas, so this practicality is new The rearmounted mode of pump is adopted in the design of the gas circuit of checkout gear in the type, is about to the least significant end that micro air pump is arranged on gas circuit (refer to be arranged on air cleaner, first and detect the back that air chamber, second detects air chamber), adopt forced-ventilated side Formula is sampled to sample gas, and this gas circuit design not only can reach the purpose of draws sample gas, and And can not affect the accuracy that gas temperature detects.
3, detect the air inlet of air chamber away from the probe of the Temperature Humidity Sensor that arranges in it, temperature owing to first The probe of humidity sensor is parallel to first air-flow direction that detects in the air chamber to be placed, and first detects gas Air inlet and the gas outlet of chamber shift to install, and the design that this air chamber structure and probe are put is so that enter first The gas flow rate that detects air chamber slows down, and Temperature Humidity Sensor fully contacts the gas in the air chamber, thereby makes warm and humid The detection of degree sensor is more accurate.
4, because fungi or insect can produce a large amount of CO2, water and heat in grain heap growth course, so, The utility model is judged fungi or insect in the grain heap by the variation that detects CO2, temperature and humidity in the grain heap Harm, there is not hysteresis quality in the result that the utility model dopes, so that the staff can take in time Measure is processed, and carries out the grain feelings by the utility model and detect and be subjected to the impact of environmental factor littler, detects model Enclose big.
4, the utility model is applicable to the detection that produces the very low grain storage fungi harm of heat, as detecting growth Produce the very low Aspergillus glaucus of heat in the process.
5, the utility model grain storage situation monitoring system for barn is easy and simple to handle, and detection speed is fast, detects knot Fruit accurately can be satisfied the needs that China's grain conditions in grain depot detects.
The utility model grain storage situation monitoring system for barn be applicable to grain storage fungi and pest damage earlier detection, Ventilation effect evaluation in the silo has ensured grain depot management personnel's safety.
Claims (10)
1. silo grain storage condition monitoring system, it is characterized in that: it comprises a remote monitoring terminal and at least one pick-up unit, a pick-up unit is arranged in the silo, wherein: this pick-up unit comprises housing, this housing is provided with gas collecting inlet and gas collecting outlet, be provided with testing circuit in this housing, this testing circuit links to each other with this remote monitoring terminal, in the housing side of each pick-up unit or the housing at least one solenoid valve is set, the valve rod of this solenoid valve links to each other with testing circuit in corresponding this pick-up unit, a gas stream go side of this solenoid valve links to each other with gas collecting inlet on corresponding this pick-up unit housing through tracheae, another gas stream go side of this solenoid valve is connected with tracheae, and the input port of this tracheae is placed on place, corresponding collection point.
2. silo grain storage condition monitoring according to claim 1 system, it is characterized in that: described testing circuit comprises single-chip microcomputer, Temperature Humidity Sensor, carbon dioxide sensor and micro air pump, this Temperature Humidity Sensor all links to each other with single-chip microcomputer with carbon dioxide sensor, this single-chip microcomputer links to each other with micro air pump by first power drive unit, this single-chip microcomputer links to each other with the valve rod of described solenoid valve by second power drive unit, and this single-chip microcomputer links to each other with described remote monitoring terminal by RS232 interface or USB interface.
3. silo grain storage condition monitoring according to claim 2 system, it is characterized in that: described solenoid valve is a retaining valve.
4. silo grain storage condition monitoring according to claim 2 system, it is characterized in that: also be provided with air strainer, first in the described pick-up unit housing and detect the air chamber and the second detection air chamber, described Temperature Humidity Sensor is located at first and is detected in the air chamber, described carbon dioxide sensor is located at second and is detected in the air chamber, this air strainer, the first detection air chamber, second detect air chamber, described micro air pump links to each other by air flue, and are located between described gas collecting inlet and the outlet of described gas collecting.
5. silo grain storage condition monitoring according to claim 4 system, it is characterized in that: described gas collecting inlet links to each other with the air intake opening of described air strainer through air flue, the gas outlet of described air strainer links to each other with described first air intake opening that detects air chamber through air flue, described first gas outlet of detecting air chamber links to each other with described second air intake opening that detects air chamber through air flue, described second gas outlet of detecting air chamber links to each other with the input port of described micro air pump through air flue, and the corresponding described gas collecting outlet of the delivery outlet of described micro air pump is placed.
6. silo grain storage condition monitoring according to claim 5 system, it is characterized in that: described first detects the probe of the air intake opening of air chamber away from the described Temperature Humidity Sensor that is provided with in it, and the probe of described Temperature Humidity Sensor is parallel to described first air-flow direction that detects in the air chamber and places.
7. silo grain storage condition monitoring according to claim 6 system is characterized in that: described first air intake opening and the gas outlet of detecting air chamber shifts to install.
8. according to the described silo grain storage condition monitoring of in the claim 2 to 7 each system, it is characterized in that: in the described testing circuit: an IO pin of described single-chip microcomputer and the output terminal of described carbon dioxide sensor join, and in addition two IO pins of described single-chip microcomputer join with serial clock input end, the serial data input/output terminal of described Temperature Humidity Sensor respectively; Described first power drive unit is a PMOS transistor, and the transistorized grid of this PMOS IO pin corresponding with it on resistance and described single-chip microcomputer joins, and the control end of this PMOS transistor drain and described micro air pump joins; Described second power drive unit is made up of chip for driving, and IO pin corresponding with it joins on the input end of this chip for driving and the described single-chip microcomputer, and the output terminal of this chip for driving and the valve rod of described solenoid valve join.
9. silo grain storage condition monitoring according to claim 2 system, it is characterized in that: each described pick-up unit also is equipped with LCDs, this LCDs is provided with button, and this LCDs and button link to each other by the single-chip microcomputer in the testing circuit in interface circuit and the described pick-up unit.
10. silo grain storage condition monitoring according to claim 2 system is characterized in that: described single-chip microcomputer also links to each other with grain condition monitoring master station by RS485 interface or CAN bus.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200800454U CN201193948Y (en) | 2008-04-18 | 2008-04-18 | Grain storage situation monitoring system for barn |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200800454U CN201193948Y (en) | 2008-04-18 | 2008-04-18 | Grain storage situation monitoring system for barn |
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| CN201193948Y true CN201193948Y (en) | 2009-02-11 |
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| CN103149899A (en) * | 2013-02-01 | 2013-06-12 | 华迪计算机集团有限公司 | Grain bin intelligent sensor integration terminal |
| CN103335927A (en) * | 2013-05-02 | 2013-10-02 | 华南农业大学 | Grain porosity measurement apparatus and measurement method thereof |
| CN103344742A (en) * | 2013-07-16 | 2013-10-09 | 河南工业大学 | Method for predicting criticality of entomophthora in grains stored in granary |
| CN103605324A (en) * | 2013-05-30 | 2014-02-26 | 湖北叶威智能科技有限公司 | Grain condition monitoring system used for grain bin |
| CN105700420A (en) * | 2015-04-08 | 2016-06-22 | 华中科技大学 | Grain condition monitoring network terminal machine and grain condition monitoring system |
| CN108346268A (en) * | 2018-03-23 | 2018-07-31 | 郑州工大粮安科技有限公司 | A kind of grain depot personnel safety production alarm system |
| CN108669228A (en) * | 2018-04-27 | 2018-10-19 | 中储粮成都储藏研究院有限公司 | Nitrogen air-conditioning storing grain method |
| CN109596172A (en) * | 2018-12-10 | 2019-04-09 | 江苏科技大学 | A kind of warm and humid monitoring unit of silo and its implementation |
| CN109600435A (en) * | 2018-12-10 | 2019-04-09 | 江苏科技大学 | It is a kind of with turn over storehouse prompt monitoring unit and its implementation |
-
2008
- 2008-04-18 CN CNU2008200800454U patent/CN201193948Y/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149899A (en) * | 2013-02-01 | 2013-06-12 | 华迪计算机集团有限公司 | Grain bin intelligent sensor integration terminal |
| CN103149899B (en) * | 2013-02-01 | 2015-10-21 | 华迪计算机集团有限公司 | Grain bin intelligent sensor integration terminal |
| CN103335927A (en) * | 2013-05-02 | 2013-10-02 | 华南农业大学 | Grain porosity measurement apparatus and measurement method thereof |
| CN103335927B (en) * | 2013-05-02 | 2015-07-29 | 华南农业大学 | A kind of cereal porosity measurement device and measuring method thereof |
| CN103605324A (en) * | 2013-05-30 | 2014-02-26 | 湖北叶威智能科技有限公司 | Grain condition monitoring system used for grain bin |
| CN103344742A (en) * | 2013-07-16 | 2013-10-09 | 河南工业大学 | Method for predicting criticality of entomophthora in grains stored in granary |
| CN105700420A (en) * | 2015-04-08 | 2016-06-22 | 华中科技大学 | Grain condition monitoring network terminal machine and grain condition monitoring system |
| CN108346268A (en) * | 2018-03-23 | 2018-07-31 | 郑州工大粮安科技有限公司 | A kind of grain depot personnel safety production alarm system |
| CN108669228A (en) * | 2018-04-27 | 2018-10-19 | 中储粮成都储藏研究院有限公司 | Nitrogen air-conditioning storing grain method |
| CN109596172A (en) * | 2018-12-10 | 2019-04-09 | 江苏科技大学 | A kind of warm and humid monitoring unit of silo and its implementation |
| CN109600435A (en) * | 2018-12-10 | 2019-04-09 | 江苏科技大学 | It is a kind of with turn over storehouse prompt monitoring unit and its implementation |
| CN109596172B (en) * | 2018-12-10 | 2020-12-15 | 江苏科技大学 | Granary temperature and humidity monitoring unit and implementation method thereof |
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