CN101441805A - Grain condition monitoring system of sensor - Google Patents
Grain condition monitoring system of sensor Download PDFInfo
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- CN101441805A CN101441805A CNA2007101777991A CN200710177799A CN101441805A CN 101441805 A CN101441805 A CN 101441805A CN A2007101777991 A CNA2007101777991 A CN A2007101777991A CN 200710177799 A CN200710177799 A CN 200710177799A CN 101441805 A CN101441805 A CN 101441805A
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Abstract
The invention provides a sensor network grain situation monitoring system based on a bus and a wireless structure, which can monitor grain situation information in a granary such as temperature, humidity, grain moisture and insect damage in real time. The monitoring system consists of grain situation parameter monitoring nodes which are buried into grains in the granary, relay nodes on a grain surface layer in the granary, and granary main control nodes, wherein a plurality of grain situation parameter monitoring nodes are connected and communicated with each other through a bus-organized structure and the relay nodes which are arranged on the top layer, and the relay nodes are communicated with the main control nodes for managing the granary through a wireless network; and the grain situation monitoring nodes are responsible for acquiring grain situation parameters in the granary such as the temperature, the humidity, the grain moisture and the insect damage, and the grain situation parameter information acquired by various monitoring nodes is transmitted to the granary main control nodes through the relay nodes on the top layer.
Description
Technical field
The present invention relates to the grain storage monitoring technical field, particularly a kind of grain condition monitoring system that combines based on bus and wireless topology.
Background technology
As the saying goes: " bread is the staff of life ", human existence also be unable to do without grain, and food problem is related to the development of society and stabilizing of people's lives.But grain under certain conditions, is easy to mouldyly as environmental baselines such as high temperature, high humiditys, if untimely processing, grain is rotten with regard to mould evil idea.Mouldy grain, the grain that has turned sour, ablastous seed grain has just lost original use value, causes serious economy loss.Therefore, become very important of the storage work of grain.
Grain is in storage process, and grain feelings for example temperature, humidity, moisture content, insect pest etc. change the quality that can influence grain.Monitoring system mostly is temperature monitoring in the grain depot at present, and in fact, the temperature of merely monitoring in the silo is not enough, can not judge and understand the situation of grain in the silo exactly, and therefore present grain condition monitoring system also has many weak points to need to improve.
Have some at present and relate to the system of grain condition monitoring, for example, application number is 200610012130.2 Chinese invention patent " based on the grain information monitoring system of wireless sensor network ", wireless sensor network technology is applied to modern silo management system, become wired into wireless, form a kind of " clout line silo " of new mode, all sensing nodes are evenly distributed in the grain heap, form the wireless monitor network of " three-dimensional ", can accomplish " no dead angle " the detection of grain feelings.This system is applied to wireless sensor network in the grain condition monitoring system of silo, and the traditional wiring form has had very much progress relatively, but all nodes in this system are radio node, and its weak point is arranged.Radiowave is propagated in grain and can be decayed, thereby has influence on the accurate transmission of grain feelings parameter, and does not relate to concrete Design of Sensor in the design of node.
Summary of the invention
In order to solve prior art problems, the objective of the invention is to utilize the mode that combines by bus structure and wireless topology between sensor node to be connected, dirigibility and expansion that the grain condition monitoring grid is laid have been improved, sensor network grain feelings detection system of the present invention is integrated survey sensor or several sensors wherein such as temperature, humidity, moisture content and insect pest, the parameter of grain condition monitoring is many, can understand the storage situation of grain more accurately.
In order to realize described purpose, the technical scheme of grain condition monitoring system of sensor of the present invention is connected by bus and wireless network is formed, wherein:
Have a plurality of grain feelings parameter monitoring nodes, bury in the grain that is placed in the silo, be used to gather silo temperature inside, humidity, grain moisture content, insect pest grain feelings parameter information;
Have a plurality of via nodes, be placed in grain top layer in the silo, gather the grain feelings parameter information that each coupled grain feelings parameter monitoring node is gathered;
Have a silo main controlled node, be in charge of whole silo;
Have bus, be used for intercommunication mutually grain feelings parameter monitoring node and coupled via node;
Have wireless network, the silo main controlled node is communicated by letter with via node by wireless network, sends instruction request to grain feelings parameter monitoring node and gathers the grain condition monitoring data result;
Preferably, described a plurality of grain feelings parameter monitoring nodes connect by the bus structure polyphone respectively, and an end of a plurality of grain feelings parameter monitoring nodes is connected with an end of the via node on the interior grain top layer of silo, and via node links to each other with the silo main controlled node is wireless.
Preferably, the identical bus interface circuit of via node design of described grain feelings parameter monitoring node and coupled silo top layer, the via node of silo top layer has identical wireless communication mode with the silo main controlled node.
Preferably, main controlled node disposes:
Control module is connected with wireless transport module, bus interface circuit, storage unit circuit, Temperature Humidity Sensor respectively, is used to export control information;
Wireless transport module, the transfer instruction information of reception control module is used for communicating by letter with via node;
Bus interface circuit, the transfer instruction information of reception control module is used for the download and the transmission of grain condition monitoring data;
Storage unit circuit receives the reading and writing command information of control module, is used for the storage of grain condition monitoring data and reads;
Temperature Humidity Sensor, the data acquisition and the transport of instruction information of reception control module are used to monitor the temperature and humidity of silo environment and transmit Monitoring Data;
Power supply, the feeder ear with wireless transport module, bus interface circuit, storage unit circuit and Temperature Humidity Sensor is connected respectively.
Preferably, via node disposes:
Control module is connected with wireless transport module, bus interface circuit and storage unit respectively, is used to export control information;
Wireless transport module, the transfer instruction information of reception control module is used for the radio communication with main controlled node;
Bus interface circuit, the transfer instruction information of reception control module is used for and grain feelings parameter monitoring node communication;
Storage unit circuit receives the reading and writing command information of control module, is used for the storage of grain condition monitoring data and reads;
Temperature Humidity Sensor, the data acquisition and the transport of instruction information of reception control module are used to monitor the temperature and humidity of silo environment and transmit Monitoring Data;
Power supply, the feeder ear with control module, wireless transport module, bus interface circuit, storage unit and Temperature Humidity Sensor is connected respectively.
Preferably, grain feelings parameter monitoring node M
IjkDispose in temperature sensor, humidity sensor, grain moisture sensor, the insect pest sensor one or more.
Preferably, grain moisture sensor structure is to be made of two electrodes, and deriving by electric capacity between potential electrode or impedance obtains grain moisture content.
Preferably, the humidity sensor of grain feelings parameter monitoring node adopts the polymkeric substance humidity-sensitive material.
Preferably, polymkeric substance and the anti-hydrogen phosphide grain of plastics fumigant structure are adopted in the encapsulation of grain feelings parameter monitoring node.
Description of drawings
Fig. 1 a, Fig. 1 b illustrate the integral layout of grain condition monitoring of the present invention system
Fig. 2 illustrates the node connection diagram of grain condition monitoring of the present invention system
Fig. 3 illustrates grain feelings parameter monitoring node strings synoptic diagram of the present invention
Fig. 4 illustrates silo main controlled node C-structure figure of the present invention
Fig. 5 illustrates via node T of the present invention
IjStructural drawing
Fig. 6 illustrates grain feelings parameter monitoring node M of the present invention
IjkStructural drawing
Fig. 7 illustrates grain feelings parameter monitoring node M of the present invention
IjkThe moisture sensor electrode
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail, be to be noted that described case study on implementation is intended to be convenient to the understanding of the present invention, and it is not played any qualification effect.
Shown in Fig. 1 a, Fig. 1 b grain condition monitoring entire system of the present invention layout: M among Fig. 1 a
IjkBe indicated in a plurality of grain feelings parameter monitoring nodes that bury in the grain in the silo, wherein i, j, k=1,2,3......, i represent grain feelings parameter monitoring node M
IjkAt the residing columns of horizontal coordinate directions X, j represents grain feelings parameter monitoring node M
IjkAt the residing columns of horizontal coordinate Y direction, k represents grain feelings parameter monitoring node M
IjkAt the residing columns of vertical coordinate Z direction, grain feelings parameter monitoring node M
IjkBe distributed in the grain with the three-dimensional matrice form; T
IjBe indicated in a plurality of via nodes on grain top layer in the silo, wherein i, j=1,2,3......, i represent via node T
IjAt the residing columns of horizontal coordinate directions X, j represents via node T
IjAt the residing columns of horizontal coordinate Y direction; Letter C indicates the silo main controlled node.Letter b indicates grain feelings parameter monitoring node M
IjkBetween and with via node T
IjConnecting bus.Described grain feelings parameter monitoring node M
IjkVia node T with coupled silo top layer
IjDesign identical bus interface circuit, the via node T of silo top layer
IjC has identical wireless communication mode with the silo main controlled node.
The grain condition monitoring system that is formed with 3 * 3 * 3 grain feelings parameter monitoring nodes, 3 * 3 via nodes and silo main controlled node C is that example specifies its layout below, shown in Fig. 1 b: T
12Expression via node T
12Be arranged in grain top layer horizontal coordinate directions X first row of silo, be positioned at horizontal coordinate Y direction secondary series, T
23Expression via node T
23Be arranged in the grain top layer horizontal coordinate directions X secondary series of silo, be positioned at horizontal coordinate Y direction the 3rd row, other via node T
11, T
21, T
31, T
22, T
32, T
13, T
33Represent that Deng therewith mode is identical; M
313Expression grain feelings parameter monitoring node M
313Be arranged in silo grain horizontal coordinate directions X the 3rd row, be positioned at horizontal coordinate Y direction first row, be positioned at vertical coordinate Z direction the 3rd row, M
322Expression grain feelings parameter monitoring node M
322Be arranged in silo grain horizontal coordinate directions X the 3rd row, be positioned at horizontal coordinate Y direction secondary series, be positioned at vertical coordinate Z direction secondary series, other grain feelings parameter monitoring node M
312, M
311, M
321Represent that Deng therewith mode is identical.B represents T
IjWith M
Ijk(K=1,2,3) connecting bus; C is a main controlled node.
Fig. 2 illustrates the node connection diagram of grain condition monitoring of the present invention system: the via node T on grain top layer in the silo in the grain condition monitoring of the present invention system
IjBe connected by wireless mode between the silo main controlled node C, with grain feelings parameter monitoring node M
IjkBetween connect a plurality of grain feelings parameter monitoring node M by the bus B mode
IjkAn end and silo in the via node T on grain top layer
IjAn end connect.The via node M of silo top layer
IjkAnd form a wireless sensor network W between the main controlled node C, can adopt 802.11b, 802.15.4ZigBee, Bluetooth, UWB, RFID or IrDA agreement to realize radio communication.Grain feelings parameter monitoring node M
IjkVia node T with the silo top layer
IjBetween bus B connect, can be CAN bus, I
2C bus or other bus connecting mode.
This kind syndeton characteristics are the via node T on grain top layer in the silo
Ij, be responsible for collecting in real time grain feelings parameter monitoring node M
IjkMonitoring Data, and these data messages of analyzing and processing are uploaded to silo main controlled node C with result by wireless mode then.Via node T
IjCan periodically upload data, also can upload data at any time according to the command request that silo main controlled node C is sent out.Via node T
IjPower supply can adopt battery, for example separately power supply or external other power supplys power supplies such as lithium ion battery, AA battery.Because the data transmission procedure power consumption is very big, the dirigibility of this data upload can effectively reduce power consumption, as relaying node T
IjWhen adopting battery to power separately, can prolong the serviceable life of node supplying cell.
Fig. 3 illustrates grain feelings parameter monitoring node strings synoptic diagram of the present invention: the grain feelings parameter monitoring node M in this grain condition monitoring system
IjkBetween be connected to form node strings by bus B.This bus B structure can be CAN bus, I
2C bus or other bus structure.All grain feelings parameter monitoring node M on the node strings
IjkAll can adopt battery, for example power supply separately such as lithium ion battery, AA battery also can be passed through connecting bus B centrally connected power supply.In addition, node strings China Oil and Food Import and Export Corporation feelings parameter monitoring node M
IjkAdopt the tension design with the connectivity port of bus B; bus B is also taked the tension safeguard measure; in order to avoid silo is pullled node strings because of the motion of grain when bringing down stocks; it is destroyed; node strings just can repeatedly be used like this, the wasting of resources of also having avoided the disposable use of node in the traditional grain condition monitoring system to bring.In addition, the design of node strings makes wiring simple, flexible.
Fig. 4 illustrates silo main controlled node C-structure figure of the present invention: silo main controlled node C disposes control module C1, wireless transport module C2, bus interface circuit C3, storage unit circuit C4, matches Temperature Humidity Sensor C5, power supply C6 as required, and wherein wireless transport module C2 is used for and silo top layer via node T
IjCommunication; Bus B can be CAN bus, I among the bus interface circuit C3
2C bus or other bus are used for downloading with the main controlled node networking or the grain condition monitoring data of other silo.Because the humiture in the silo in airborne humiture and the grain heap has difference usually, so be necessary airborne humiture is monitored, temperature, the humidity sensor C5 of silo main controlled node C configuration are used to monitor airborne humiture in the silo.Control module C1 is connected C5 with wireless transport module C2, bus interface circuit C3, storage unit circuit C4, Temperature Humidity Sensor respectively, is used to export control information; Wireless transport module C2, the transfer instruction information of reception control module C1 is used for and via node T
IjRadio communication; Bus interface circuit C3, the transfer instruction information of reception control module C1 is used for the download and the transmission of grain condition monitoring data; Storage unit circuit C4 receives the reading and writing command information of control module C1, is used for the storage of grain condition monitoring data and reads; Temperature Humidity Sensor C5 is for matching the unit according to demand; Receive data acquisition and the transport of instruction information of control module C1, be used to monitor the temperature and humidity of silo environment and transmit Monitoring Data; Power supply C6 is connected with wireless transport module C2, bus interface circuit C3, storage unit circuit C4 and the feeder ear of Temperature Humidity Sensor C5 respectively.
Fig. 5 illustrates via node T of the present invention
IjStructural drawing: grain top layer via node T in the silo in this grain condition monitoring system
IjDispose control module T1, wireless transport module T2, bus interface circuit T3, storage unit T4, Temperature Humidity Sensor T5 and power supply T6.Control module T1 is connected with storage unit T4 with wireless transport module T2, bus interface circuit T3 respectively, is used to export control information; Wireless transport module T2, the transfer instruction information of reception control module T1 is used for the radio communication with main controlled node C; Bus interface circuit T3, the transfer instruction information of reception control module T1 is used for and grain feelings parameter monitoring node communication; Storage unit circuit T4 receives the reading and writing command information of control module T1, is used for the storage of grain condition monitoring data and reads; Temperature Humidity Sensor T5, data acquisition and the transport of instruction information of reception control module T1 are used to monitor the temperature and humidity of silo environment and transmit Monitoring Data; Power supply T6 is connected with control module T1, wireless transport module T2, bus interface circuit T3, storage unit T4 and the feeder ear of Temperature Humidity Sensor T5 respectively.
Wherein wireless transport module T2 is used for communicating by letter with silo main controlled node C; Bus B can be CAN bus, I among its bus interface circuit T3
2C bus or other bus.Via node Tij configuration temperature, humidity sensor are used to measure airborne humiture in the silo in addition.Humiture in the silo in airborne humiture and the grain heap has very big difference usually, therefore is necessary airborne humiture is monitored.Can select one or two via node T in the silo
IjThe configuration Temperature Humidity Sensor gets final product, in order to avoid all dispose the sensor resource waste that brings.Via node T
IjBe furnished with power supply, can adopt battery, for example power supply or external other power supply power supplies separately such as lithium ion battery, AA battery, but also can give grain feelings parameter monitoring node M by bus B
Ijk, power supply.
Fig. 6 illustrates grain feelings parameter monitoring node M of the present invention
IjkStructural drawing: the grain feelings parameter monitoring node M in this grain condition monitoring system
IjkOn one or more of sensors such as moisture transducer, temperature sensor, humidity sensor, insect pest acquisition sensor can be housed, its profile can be designed to cylindric or rectangular-shaped.Grain feelings parameter monitoring node M
IjkInside is equipped with the signal conditioning circuit of sensor, and deriving by the electric capacity between potential electrode or impedance obtains grain moisture content, can realize the information gathering, data processing of institute's monitoring parameter and by bus B result be passed to the silo top node.Node is the active upload data periodically, and also the command request that can send according to the via node T of silo top layer is uploaded data at any time.Because the data transmission procedure power consumption is very big, the dirigibility of this data upload can effectively reduce power consumption, when node adopts battery to power separately, can prolong the serviceable life of node supplying cell.
Grain feelings parameter monitoring node M in this grain condition monitoring system
IjkOn the temperature of temperature sensor in can monitoring grain heap, can also provide temperature compensation for the humidity detection of monitoring of the grain moisture content of moisture sensor and humidity sensor, wherein, P1, P2 are the electrode of moisture sensor, connect the internal signal modulate circuit, Sr is one or more of temperature sensor, humidity sensor, insect pest sensor, connects the internal signal modulate circuit, and bus B links to each other with the internal signal modulate circuit.As shown in Figure 6.
Fig. 7 illustrates grain feelings parameter monitoring node M i moisture sensor electrode of the present invention: grain feelings parameter monitoring node M of the present invention
IjkOn moisture sensor be to realize the grain moisture measurement by electric capacity or the resistance value of measuring P1, P2 between two electrodes.Two electrodes can be the shapes of two parallel-plate electrode P3, P4, can be circular ring electrode P1, P2, also can be the electrodes of other form.
Grain feelings parameter monitoring node M in this grain condition monitoring system
IjkOn humidity sensor can adopt the manufacturing of MEMS technology based on polymkeric substance humidity-sensitive material sense moor reason or other principle design, be characterized in low in energy consumption, volume is little, cost is low.
Grain feelings parameter monitoring node M in this grain condition monitoring system
IjkAdopted anti-hydrogen sulfide fumigant design,, metallic copper has been had stronger corrosive attack because the fumigant in the present silo mostly is hydrogen phosphide.Therefore, at first from material, avoid using metallic copper during design of node as far as possible, secondly structurally the part of being corroded is easily handled as seal protection.
Concrete implementation step
1. according to the area of silo and the height of grain heap, determine to connect grain feelings parameter monitoring node M
IlkNumber, according to certain interval M is set
IjkSuppose that silo is rectangle (rectangle or square), i had both represented one side distribution number of rectangle, j represents another side distribution number, k is the height profile number of silo, for example, the volume of grain is long 45 meters, wide 30 meters, high 6 meters in the silo, if arrange grain feelings parameter monitoring node M according to 1.5 meters equidistant intervals
Ijk, then to get maximal value be 29 to i, and it is 19 that j gets maximal value, and it is 3 that K gets maximal value.By bus B with grain feelings parameter monitoring node M
Ijk(K=1,2,3 ...), and then the via node T of connection silo top layer
IjForm in the node grain heap, as shown in Figures 2 and 3.
With the node strings that connects according to the interval that rectangle plane is provided with, utilize special instrument to insert the grain, via node T from the silo top layer
IjBe placed on top layer, make the grain condition monitoring node M in the grain heap
Ijk, silo top layer via node T
IjConstitute the grain condition monitoring network of a solid with silo main controlled node C, monitoring range covers whole silo.
3. silo main controlled node C is arranged in the silo porch, makes itself and silo top layer via node T
IjForm wireless network, realize real-time monitoring silo.
4. the grain feelings parameter monitoring node M of silo inside
IjkAll can periodically enter grain feelings parameter acquisition state, and grain feelings information is passed to silo top layer via node T from dormant state
Ij, by top layer via node T
IjPass to silo main controlled node C by wireless mode; On the other hand, silo main controlled node C can pass through silo top layer via node T at any time
IjTo grain feelings parameter monitoring node M
IjkSend instruction request and gather grain feelings information.
The above; only be the embodiment among the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the present invention; can understand conversion or the replacement expected; all should be encompassed in of the present invention comprising within the scope, therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1, a kind of grain condition monitoring system of sensor is characterized in that, comprising:
Have a plurality of grain feelings parameter monitoring nodes, bury in the grain that is placed in the silo, be used to gather silo temperature inside, humidity, grain moisture content, insect pest grain feelings parameter information;
Have a plurality of via nodes, be placed in grain top layer in the silo, gather the grain feelings parameter information that each coupled grain feelings parameter monitoring node is gathered;
Have a silo main controlled node and be in charge of whole silo;
Have bus, be used for intercommunication mutually grain feelings parameter monitoring node and coupled via node;
Silo main controlled node with wireless network is communicated by letter with via node by wireless, sends instruction request to grain feelings parameter monitoring node and gathers the grain condition monitoring data result.
2, grain condition monitoring according to claim 1 system, it is characterized in that: described a plurality of grain feelings parameter monitoring nodes connect by the bus structure polyphone respectively, one end of a plurality of grain feelings parameter monitoring nodes is connected with an end of the via node on the interior grain top layer of silo, and via node links to each other with the silo main controlled node is wireless.
3, grain condition monitoring according to claim 1 system, it is characterized in that: the identical bus interface circuit of via node design of described grain feelings parameter monitoring node and coupled silo top layer, the via node of silo top layer has identical wireless communication mode with the silo main controlled node.
4, grain condition monitoring according to claim 1 system, it is characterized in that: main controlled node disposes:
Control module is connected with wireless transport module, bus interface circuit, storage unit circuit, Temperature Humidity Sensor respectively, is used to export control information;
Wireless transport module, the transfer instruction information of reception control module is used for communicating by letter with via node;
Bus interface circuit, the transfer instruction information of reception control module is used for the download and the transmission of grain condition monitoring data;
Storage unit circuit receives the reading and writing command information of control module, is used for the storage of grain condition monitoring data and reads;
Temperature Humidity Sensor, the data acquisition and the transport of instruction information of reception control module are used to monitor the temperature and humidity of silo environment and transmit Monitoring Data;
Power supply, the feeder ear with wireless transport module, bus interface circuit, storage unit circuit and Temperature Humidity Sensor is connected respectively.
5, grain condition monitoring according to claim 1 system, it is characterized in that: via node disposes:
Control module is connected with wireless transport module, bus interface circuit and storage unit respectively, is used to export control information;
Wireless transport module, the transfer instruction information of reception control module is used for the radio communication with main controlled node;
Bus interface circuit, the transfer instruction information of reception control module is used for and grain feelings parameter monitoring node communication;
Storage unit circuit receives the reading and writing command information of control module, is used for the storage of grain condition monitoring data and reads;
Temperature Humidity Sensor, the data acquisition and the transport of instruction information of reception control module are used to monitor the temperature and humidity of silo environment and transmit Monitoring Data;
Power supply, the feeder ear with control module, wireless transport module, bus interface circuit, storage unit and Temperature Humidity Sensor is connected respectively.
6, grain condition monitoring according to claim 1 system, it is characterized in that: grain feelings parameter monitoring node configuration has one or more in temperature sensor, humidity sensor, grain moisture sensor, the insect pest sensor.
7, grain condition monitoring according to claim 6 system, it is characterized in that: grain moisture sensor structure is to be made of two electrodes, deriving by electric capacity between potential electrode or impedance obtains grain moisture content.
8, grain condition monitoring according to claim 6 system is characterized in that: the humidity sensor of grain feelings parameter monitoring node adopts the polymkeric substance humidity-sensitive material.
9, grain condition monitoring according to claim 6 system is characterized in that: polymkeric substance and the anti-hydrogen phosphide grain of plastics fumigant structure are adopted in the encapsulation of grain feelings parameter monitoring node.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101777991A CN101441805B (en) | 2007-11-21 | 2007-11-21 | Grain condition monitoring system of sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101777991A CN101441805B (en) | 2007-11-21 | 2007-11-21 | Grain condition monitoring system of sensor |
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| CN101441805A true CN101441805A (en) | 2009-05-27 |
| CN101441805B CN101441805B (en) | 2010-09-22 |
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| CN2007101777991A Expired - Fee Related CN101441805B (en) | 2007-11-21 | 2007-11-21 | Grain condition monitoring system of sensor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102200763A (en) * | 2010-03-23 | 2011-09-28 | 佳木斯大学 | Grain status monitoring system based on fieldbus |
| CN102419572A (en) * | 2010-09-27 | 2012-04-18 | 佳木斯大学 | Field-bus-based granary temperature-humidity measurement and control terminal |
| CN102486389A (en) * | 2010-12-06 | 2012-06-06 | 沈阳理工大学 | Grain bin temperature and humidity measuring device of wireless sensor network |
| CN102589749A (en) * | 2012-03-12 | 2012-07-18 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN104777859A (en) * | 2014-05-22 | 2015-07-15 | 胡祖国 | System for detecting and processing temperature and humidity of grain storehouse |
| CN105043446A (en) * | 2015-07-07 | 2015-11-11 | 深圳市东大恒丰科技有限公司 | Grain bulk temperature, humidity and balance moisture detection method and detection system |
| CN105785828A (en) * | 2016-05-06 | 2016-07-20 | 安徽贝通智能科技有限公司 | Grain collection and storage integrated application technology |
| CN106197754A (en) * | 2016-06-30 | 2016-12-07 | 湖南万通科技股份有限公司 | Layout designs map generalization method, grain feelings detection terminal and system in silo |
| CN106212747A (en) * | 2016-08-04 | 2016-12-14 | 保山市365生态产业研究所 | Become the late protection method sampled tea |
| CN106600928A (en) * | 2016-11-24 | 2017-04-26 | 广西大学 | Wireless grain situation monitoring system |
| CN109612530A (en) * | 2018-12-28 | 2019-04-12 | 南京艾龙信息科技有限公司 | A kind of monitoring device of the comprehensive many reference amounts of grain storage environmental perspective |
| CN110083101A (en) * | 2019-05-08 | 2019-08-02 | 浙江万胜智能科技股份有限公司 | A kind of silo humiture observation system based on UWB location technology |
| CN110766561A (en) * | 2019-09-11 | 2020-02-07 | 河南工业大学 | Abnormal grain condition detection method based on wireless tomography technology |
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| CN2088244U (en) * | 1990-11-23 | 1991-11-06 | 福建师范大学高分子研究所 | Multi-point temp measuring apparatus for use in the granary |
| CN1027922C (en) * | 1992-02-01 | 1995-03-15 | 陕西省电子技术研究所 | Multi-point temp. moisture centralization mornitoring system |
| CN1139890C (en) * | 2001-08-18 | 2004-02-25 | 贺贵明 | Intelligent monitor system and method for grain insects in grain depot |
| DE202006000768U1 (en) * | 2006-01-13 | 2006-05-24 | Steckermeier, Johann | Temperature monitoring plant, especially for use in grain silos, comprising temperature sensors operated via central units, from which measured values are transmitted by radio to data collector |
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| CN102200763A (en) * | 2010-03-23 | 2011-09-28 | 佳木斯大学 | Grain status monitoring system based on fieldbus |
| CN102419572A (en) * | 2010-09-27 | 2012-04-18 | 佳木斯大学 | Field-bus-based granary temperature-humidity measurement and control terminal |
| CN102486389A (en) * | 2010-12-06 | 2012-06-06 | 沈阳理工大学 | Grain bin temperature and humidity measuring device of wireless sensor network |
| CN102589749A (en) * | 2012-03-12 | 2012-07-18 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN102589749B (en) * | 2012-03-12 | 2014-09-10 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN104777859A (en) * | 2014-05-22 | 2015-07-15 | 胡祖国 | System for detecting and processing temperature and humidity of grain storehouse |
| CN105043446A (en) * | 2015-07-07 | 2015-11-11 | 深圳市东大恒丰科技有限公司 | Grain bulk temperature, humidity and balance moisture detection method and detection system |
| CN105785828A (en) * | 2016-05-06 | 2016-07-20 | 安徽贝通智能科技有限公司 | Grain collection and storage integrated application technology |
| CN106197754A (en) * | 2016-06-30 | 2016-12-07 | 湖南万通科技股份有限公司 | Layout designs map generalization method, grain feelings detection terminal and system in silo |
| CN106197754B (en) * | 2016-06-30 | 2018-10-23 | 湖南万通科技股份有限公司 | Layout designs map generalization method, grain feelings detection terminal and system in silo |
| CN106212747A (en) * | 2016-08-04 | 2016-12-14 | 保山市365生态产业研究所 | Become the late protection method sampled tea |
| CN106212747B (en) * | 2016-08-04 | 2020-05-05 | 云南拾然科技服务有限公司 | Later-period protection method of finished tea |
| CN106600928A (en) * | 2016-11-24 | 2017-04-26 | 广西大学 | Wireless grain situation monitoring system |
| CN109612530A (en) * | 2018-12-28 | 2019-04-12 | 南京艾龙信息科技有限公司 | A kind of monitoring device of the comprehensive many reference amounts of grain storage environmental perspective |
| CN110083101A (en) * | 2019-05-08 | 2019-08-02 | 浙江万胜智能科技股份有限公司 | A kind of silo humiture observation system based on UWB location technology |
| CN110766561A (en) * | 2019-09-11 | 2020-02-07 | 河南工业大学 | Abnormal grain condition detection method based on wireless tomography technology |
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