Grain storage greenhouse water integrated detection system

Abstract

The utility model relates to the technical field of grain pile detection, in particular to a grain storage greenhouse water integrated detection system, which comprises a grain pile temperature and humidity detection parameter acquisition device, a temperature measurement extension set, a communication module and a cloud end, the grain pile temperature and humidity detection parameter acquisition device is used for acquiring temperature and humidity parameters of a grain pile and transmitting the temperature and humidity parameters to the temperature measurement extension set; the temperature measuring extension set is used for processing temperature and humidity parameters acquired by the grain pile temperature and humidity detection parameter acquisition device and transmitting the temperature and humidity parameters to the cloud through the communication module; by arranging the grain storage greenhouse water integrated detection system comprising a grain pile temperature and humidity detection parameter acquisition device, a temperature measurement extension set, a communication module and a cloud end, temperature and humidity information in a grain pile is detected and converted into moisture information of grains, so that online detection and display of the moisture information in the grain pile are realized; the problems that manual sampling on site is needed in most grain pile moisture detection, the operation is very tedious and time-consuming, and the whole process cannot be integrated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain pile detection, in particular to an integrated detection system for grain storage greenhouse water. Background Art

[0002] Food is a major issue related to people's livelihood. In addition to increasing food production, we should also pay attention to the safe storage and circulation of food. The grain balance moisture theory is a theory of the laws of grain moisture absorption and dissipation and their influence on grain properties. It is a basic theory in grain storage, an important parameter for studying grain drying and safe storage, and an important parameter for designing drying machinery and mechanical ventilation.

[0003] my country's grain storage time is longer than that of developed countries. The main way to control the moisture content and temperature through warehouse ventilation is to inhibit the growth of insects and molds, maintain grain activity and delay quality deterioration. In order to describe the grain drying process, the changes in grain pile ventilation and cooling, and improve physical control, it is necessary to understand the relationship between the equilibrium moisture content (EMC) and equilibrium relative humidity (ERH) of grain.

[0004] Developed countries have a history of nearly 100 years of research on the EMC / ERH relationship in grains. There are more than 200 equations describing EMC / ERH, and the best equations have been screened for each type of grain and oilseed. In addition, the grain and oilseed varieties promoted in production are tested for equilibrium moisture every few years to guide grain drying, safe storage and ventilation operations. The data used in the drying, ventilation and other operating processes in my country's grain storage process comes from the Soviet Union. my country's scientific research community has attempted to measure the grain equilibrium moisture data, but due to limited experimental conditions, lack of computer nonlinear regression statistical technology, and the large workload and long cycle of grain equilibrium moisture determination, the grain equilibrium moisture determination has not been systematically carried out.

[0005] Granaries are special buildings for storing grain, in which large amounts of grain are stored. During storage, the grain itself has a certain respiration effect. In order to ensure the quality of storage, it is necessary to uniformly test the temperature and humidity of the grain pile.

[0006] At present, most grain pile moisture detection requires manual sampling on site, which is very cumbersome and time-consuming, and the entire process cannot be integrated. However, both theory and experiment have confirmed that the temperature and humidity at a certain point in the grain pile have a basically corresponding functional relationship with the equilibrium moisture. Therefore, the corresponding equilibrium moisture can be obtained by accurately detecting the temperature and humidity of the grain pile. This provides a simple and easy-to-automate method and approach for the detection of the equilibrium moisture of the grain pile. Utility Model Content

[0007] In view of the above problems, the utility model provides a grain storage greenhouse water integrated detection system.

[0008] The technical solution adopted is the integrated detection system of grain storage greenhouse water, including a grain pile temperature and humidity detection parameter collection device, a temperature measurement extension, a communication module and a cloud;

[0009] The grain pile temperature and humidity detection parameter acquisition device is used to collect the temperature and humidity parameters of the grain pile and transmit them to the temperature measurement extension;

[0010] The temperature measurement extension is used to process the temperature and humidity parameters collected by the grain pile temperature and humidity detection parameter collection device, and transmit them to the cloud through the communication module;

[0011] The cloud is used to store and display the temperature and humidity parameters transmitted by the temperature measurement extension.

[0012] Optionally, the grain pile temperature and humidity detection parameter collection device includes a parameter collection main cable, a parameter collection branch cable and a temperature and humidity sensor fixing line;

[0013] The parameter acquisition main cable is connected to a plurality of parameter acquisition branch cables;

[0014] The parameter acquisition branch cable is arranged horizontally, and the parameter acquisition branch cable is connected to the temperature and humidity sensor fixing line;

[0015] The temperature and humidity sensor fixing line is vertically arranged and can be vertically inserted into the grain pile. A plurality of temperature and humidity collecting terminals are arranged on the temperature and humidity sensor fixing line.

[0016] Optionally, a first connection terminal and a second connection terminal are respectively provided at both ends of the parameter acquisition branch cable, and adjacent parameter acquisition branch cables are connected via the first connection terminal and the second connection terminal.

[0017] Optionally, a wing is provided at the connection between the temperature and humidity sensor fixing wire and the parameter acquisition branch cable.

[0018] Optionally, a temperature and humidity collector, a first signal transmission line, and a second signal transmission line are provided in the temperature and humidity collection terminal;

[0019] One end of the first signal transmission line and one end of the second signal transmission line are respectively connected to two signal output terminals of the temperature and humidity collector;

[0020] The other end of the first signal transmission line and the other end of the second signal transmission line are inserted into the temperature and humidity sensor fixing line.

[0021] Optionally, a first separator and a second separator are provided in the temperature and humidity collection terminal, and the first separator and the second separator divide the internal space of the temperature and humidity collection terminal into a first cavity, a second cavity and a third cavity;

[0022] The first cavity is close to the parameter acquisition branch cable;

[0023] The third cavity is far away from the parameter acquisition branch cable;

[0024] The second cavity is located between the first cavity and the third cavity.

[0025] Optionally, the temperature and humidity collector is disposed in the first cavity;

[0026] The first signal transmission line and the second signal transmission line pass through the second cavity and the third cavity in sequence.

[0027] Optionally, a collection hole is provided on the surface of the temperature and humidity collection terminal, and the collection hole is connected to the first cavity.

[0028] Optionally, fixing holes are provided at both ends of the temperature and humidity collection terminal, and the temperature and humidity sensor fixing wire is detachably connected via fixing bolts passing through the fixing holes.

[0029] Optional, the model of the temperature and humidity sensor is GXHT3W-2115D01.

[0030] The beneficial effects of the present utility model include at least one of the following:

[0031] 1. By setting up an integrated grain storage greenhouse water detection system including a grain pile temperature and humidity detection parameter collection device, a temperature measurement extension, a communication module and a cloud, the temperature and humidity information in the grain pile is detected and then converted into the moisture information of the grain, thereby realizing online detection and display of the moisture information in the grain pile.

[0032] 2. By setting up a grain pile temperature and humidity detection parameter collection device including a parameter collection main cable, a parameter collection branch cable and a temperature and humidity sensor fixing line, and through the mutual cooperation of multiple cables to form a network, it becomes possible to collect temperature and humidity data at multiple points in the grain pile in the granary, thereby being able to more accurately monitor the temperature and humidity of the grain pile in the granary.

[0033] 3. It solves the problem that most grain pile moisture detection requires manual sampling on site, which is very cumbersome and time-consuming, and the entire process cannot be integrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the integrated detection system for grain storage greenhouse water;

[0035] Figure 2 This is a schematic diagram of the structure of a device for collecting parameters for detecting temperature and humidity in a grain pile;

[0036] Figure 3 This is a schematic diagram of the parameter acquisition cable and the temperature and humidity sensor fixing line structure;

[0037] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0038] Figure 5 This is a schematic diagram of the temperature and humidity collection terminal structure;

[0039] Figure 6 It is the temperature parameter diagram of this embodiment;

[0040] Figure 7 It is the humidity parameter diagram of this embodiment;

[0041] The figure marks are: 1 is the parameter acquisition main cable, 2 is the parameter acquisition branch cable, 3 is the temperature and humidity sensor fixing line, 4 is the first connecting terminal, 5 is the second connecting terminal, 6 is the temperature and humidity acquisition terminal, 7 is the acquisition hole, 8 is the fixing hole, 9 is the first separator, 10 is the second separator, 11 is the first cavity, 12 is the second cavity, 13 is the third cavity, 14 is the first signal transmission line, and 15 is the second signal transmission line. DETAILED DESCRIPTION

[0042] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0044] like Figures 1 to 5 As shown, the integrated detection system for grain storage greenhouse water includes a grain pile temperature and humidity detection parameter collection device, a temperature measurement extension, a communication module and a cloud;

[0045] The grain pile temperature and humidity detection parameter acquisition device is used to collect the temperature and humidity parameters of the grain pile and transmit them to the temperature measurement extension;

[0046] The temperature measurement extension is used to process the temperature and humidity parameters collected by the grain pile temperature and humidity detection parameter collection device, and transmit them to the cloud through the communication module;

[0047] The cloud is used to store and display the temperature and humidity parameters transmitted by the temperature measurement extension.

[0048] The purpose of this design is to set up a grain storage greenhouse water integrated detection system including a grain pile temperature and humidity detection parameter collection device, a temperature measurement extension, a communication module and a cloud, and detect the temperature and humidity information in the grain pile and then convert it into the moisture information of the grain, so as to achieve online detection and display of the moisture information in the grain pile. This solves the problem that most grain pile moisture detection requires manual sampling on site, which is very cumbersome and time-consuming, and the entire process cannot be integrated.

[0049] In this embodiment, the grain pile temperature and humidity detection parameter collection device includes a parameter collection main cable 1, a parameter collection branch cable 2 and a temperature and humidity sensor fixing line 3;

[0050] The parameter acquisition main cable 1 is connected to a plurality of parameter acquisition branch cables 2;

[0051] The parameter acquisition branch cable 2 is arranged horizontally, and the parameter acquisition branch cable 2 is connected to a plurality of temperature and humidity sensor fixing wires 3;

[0052] The temperature and humidity sensor fixing wire 3 is vertically arranged and can be vertically inserted into the grain pile. A plurality of temperature and humidity collecting terminals 6 are arranged on the temperature and humidity sensor fixing wire 3 .

[0053] The purpose of this design is to set up a grain pile temperature and humidity detection parameter acquisition device including a parameter acquisition main cable, a parameter acquisition branch cable and a temperature and humidity sensor fixing line, and form a network through the cooperation of multiple cables, so that it is possible to collect temperature and humidity data at multiple points in the grain pile in the granary, thereby being able to more accurately monitor the temperature and humidity of the grain pile in the granary. This solves the problem that the existing grain pile temperature and humidity data collection points are mostly concentrated on the inner wall of the granary, making it difficult to collect temperature and humidity data in the grain pile, that is, only the temperature data of the grain pile measurement point can be detected, but the humidity data of the grain pile cannot be detected, and the balanced moisture data of each point in the grain pile cannot be detected. The function is single, and it cannot fully reflect the comprehensive grain conditions such as the temperature, humidity and water of the grain pile, which brings serious hidden dangers to grain storage safety.

[0054] In this embodiment, the first connection terminal 4 and the second connection terminal 5 are respectively provided at both ends of the parameter acquisition branch cable 2 , and adjacent parameter acquisition branch cables 2 are connected via the first connection terminal 4 and the second connection terminal 5 .

[0055] The purpose of such a design is to enable multiple parameter collection branch cables to be connected end to end by respectively arranging the first connection terminal and the second connection terminal at both ends of the parameter collection branch cable, and the specific connection method can be that the first connection terminal of the parameter collection branch cable located in the middle is connected to the second connection terminal of another parameter collection branch cable, and the second connection terminal of the parameter collection branch cable located in the middle is connected to the first connection terminal of the third parameter collection branch cable, that is, connected in a straight line.

[0056] The parameter acquisition branch cable at the end is connected to the parameter acquisition main cable through the first connecting terminal, so that multiple parameter acquisition branch cables can be connected on one branch line, and a temperature and humidity sensor fixing line is connected below each parameter acquisition branch cable.

[0057] In this embodiment, a wing is provided at the connection between the temperature and humidity sensor fixing wire 3 and the parameter acquisition branch cable 2 .

[0058] The purpose of this design is to improve the connection tightness between the temperature and humidity sensor fixing line and the parameter acquisition support cable by providing the wing.

[0059] In this embodiment, a specific structure of a temperature and humidity collection terminal is provided, wherein a temperature and humidity collector, a first signal transmission line 14 and a second signal transmission line 15 are provided in the temperature and humidity collection terminal 6;

[0060] One end of the first signal transmission line 14 and one end of the second signal transmission line 15 are respectively connected to two signal output terminals of the temperature and humidity collector;

[0061] The other end of the first signal transmission line 14 and the other end of the second signal transmission line 15 are inserted into the temperature and humidity sensor fixing line 3 .

[0062] At the same time, a first separator 9 and a second separator 10 are provided in the temperature and humidity collection terminal 6, and the first separator 9 and the second separator 10 divide the internal space of the temperature and humidity collection terminal 6 into a first cavity 11, a second cavity 12 and a third cavity 13;

[0063] The first cavity 11 is close to the parameter acquisition branch cable 2;

[0064] The third cavity 13 is far away from the parameter acquisition branch cable 2;

[0065] The second cavity 12 is located between the first cavity 11 and the third cavity 13 .

[0066] And the temperature and humidity collector is arranged in the first cavity 11;

[0067] The first signal transmission line 14 and the second signal transmission line 15 pass through the second cavity 12 and the third cavity 13 in sequence.

[0068] The purpose of this design is to divide the internal space of the temperature and humidity collection terminal into three cavities, wherein the first cavity is used to install a fixed temperature and humidity collector, and the other two cavities are used to place the first signal transmission line and the second signal transmission line. The three cavities are independent of each other and do not interfere with each other.

[0069] It should be pointed out that the existence state of water in the grain referred to in this embodiment can be divided into free water and bound water. Free water is also called free water. It exists in the intercellular spaces and capillaries of grain grains and has the properties of ordinary water. The change in moisture content of grains during drying and storage is mainly the change in free water. The factors affecting the balanced moisture content of grains mainly include relative humidity of the atmosphere, temperature, type of grain, maturity, etc. Due to the relationship between the balanced moisture content of grains, the air humidity in the warehouse and the pores of the grain pile has a great influence on the moisture content of grains. Air humidity affects the humidity in the warehouse, and the humidity in the warehouse affects the humidity of the grain pile. The changes in moisture content of grains are determined by the size of air humidity, warehouse humidity, grain pile humidity and moisture content of grains. The changes in moisture content of grains after warehousing are caused by changes in air humidity, except for reasons such as leaking warehouses, warehouse walls, and floor leakage.

[0070] The annual change of grain moisture mainly shows a certain pattern with the annual change of relative humidity of the air. The annual change of relative humidity of the air varies with the region: it is low in summer and high in winter in the northern region; it is low in autumn and high in spring in the coastal region. From the perspective of the change of moisture in the entire stored grain, the change of moisture in the surface and the outer part is mainly affected by external humidity and warehouse humidity, while the change of moisture in the stored grain is more complicated. The change of moisture in the stored grain throughout the year is more significant in the upper layer, while the change in the middle and lower layers is not significant.

[0071] The multi-point temperature and humidity detection network in this parameter collection device makes up for this defect. It can collect temperature and humidity information of the gaps in the grain pile from multiple points and multiple surfaces from the upper layer to the lower layer. Therefore, it is very important to understand the actual humidity conditions of different areas inside the grain pile more quickly and accurately online for the calculation of moisture balance.

[0072] In this embodiment, a collection hole 7 is provided on the surface of the temperature and humidity collection terminal 6, and the collection hole 7 is connected to the first cavity 11. Fixing holes 8 are provided at both ends of the temperature and humidity collection terminal 6, and the temperature and humidity sensor fixing line 3 is detachably connected through fixing bolts passing through the fixing holes 8.

[0073] The purpose of such a design is that the temperature and humidity sensor probe in the temperature and humidity collection terminal can be in contact with the external environment through the provided collection hole, so as to collect the temperature and humidity data of the area.

[0074] The fixing holes are provided to facilitate the installation of the temperature and humidity collection terminals.

[0075] In this embodiment, the model of the temperature and humidity sensor is GXHT3W-2115D01.

[0076] In this embodiment, Figure 6 and Figure 7As shown, taking the actual scenario as an example, the warehouse is a standard tall square warehouse, the warehouse number is: No. 6 warehouse, the warehouse dimensions are: 41.82 meters long, 23.48 meters wide, and 6.92 meters high. The storage conditions of No. 6 warehouse are:

[0077] Food grade: first class;

[0078] Storage nature: ground level;

[0079] Storage variety: mixed wheat;

[0080] Origin: Henan;

[0081] Harvest year: 2021;

[0082] Storage quantity: 5,500 tons;

[0083] According to the size of the warehouse, there are 60 temperature and humidity sensor fixed wires, and a total of 300 temperature and humidity collection terminals are set up and divided into 10 columns.

[0084] The temperature measurement range of the temperature and humidity sensor is -45℃ to +130℃, the test accuracy in the range of 0℃ to +60℃ can reach ±0.2℃, and the conversion speed can reach 2.5ms. The GXHT3W-2115D01 chip has undergone anti-fumigation and corrosion resistance tests during the research and development and design process, and fully meets the temperature and humidity environment monitoring requirements of the granary; the full-chain multi-point distributed temperature and humidity measurement function can help the brain of smart warehousing to collect data, and the multi-parameter, real-time collection and real-time aggregation of grain data provide reliable data support for real-time changes in different grain storage ecological zones, different grain types, different warehouse types, different storage times, different grain varieties, and temperature and humidity, so as to provide more accurate predictions and early warnings, and provide timely and effective decision-making basis for intelligent operations.

[0085] The sensor chip used in this application is a single-bus temperature and humidity measurement unit with a wide range of temperature and humidity measurements.

[0086] The module has a temperature measurement range of -45℃~125℃, with a measurement accuracy of ±0.3℃, and a humidity measurement range of 0-100%RH, with a measurement accuracy of ±3%. It uses a single bus interface to communicate with the outside world, and can be used in a long-distance distributed network. It is fully suitable for the field of grain temperature measurement, especially for flat warehouse applications. It is fully compatible with the current grain measurement and control system and can be used in combination with a single bus temperature sensor.

[0087] In order to verify the entire detection effect, measurements are performed using a grain moisture meter. The principle is that the grain moisture rapid meter uses the drying loss method to detect the moisture content of grains. The sample is quickly heated by a heating system to allow the moisture in the sample to completely evaporate in a short time. Therefore, the moisture content of the sample can be monitored in a short time.

[0088] The rapid grain moisture meter can realize automatic detection without excessive human participation, which greatly improves the accuracy of data detection and work efficiency.

[0089] Use a commonly used moisture detection tool: a grain moisture meter to compare the moisture in the grain pile measured by the system. The error between the actual moisture and the moisture detected by the system is within ±0.5%, and the accuracy rate is over 95%.

[0090] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Grain storage greenhouse water integrated detection system, characterized by: It includes a grain pile temperature and humidity detection parameter collection device, a temperature measurement extension, a communication module and a cloud; The grain pile temperature and humidity detection parameter acquisition device is used to collect the temperature and humidity parameters of the grain pile and transmit them to the temperature measurement extension; The temperature measurement extension is used to process the temperature and humidity parameters collected by the grain pile temperature and humidity detection parameter collection device, and transmit them to the cloud through the communication module; The cloud is used to store and display the temperature and humidity parameters transmitted by the temperature measurement extension; The grain pile temperature and humidity detection parameter collection device comprises a parameter collection main cable (1), a parameter collection branch cable (2) and a temperature and humidity sensor fixing line (3); The parameter collection main cable (1) is connected to a plurality of parameter collection branch cables (2); The parameter collection branch cable (2) is arranged horizontally, and the parameter collection branch cable (2) is connected to the temperature and humidity sensor fixing line (3); The temperature and humidity sensor fixing wire (3) is arranged vertically and can be vertically inserted into the grain pile, and a plurality of temperature and humidity collection terminals (6) are arranged on the temperature and humidity sensor fixing wire (3); The two ends of the parameter acquisition branch cable (2) are respectively provided with a first connection terminal (4) and a second connection terminal (5), and adjacent parameter acquisition branch cables (2) are connected via the first connection terminal (4) and the second connection terminal (5); A wing is provided at the connection between the temperature and humidity sensor fixing wire (3) and the parameter acquisition branch cable (2); The temperature and humidity collection terminal (6) is provided with a temperature and humidity collector, a first signal transmission line (14) and a second signal transmission line (15); One end of the first signal transmission line (14) and one end of the second signal transmission line (15) are respectively connected to two signal output terminals of the temperature and humidity collector; The other end of the first signal transmission line (14) and the other end of the second signal transmission line (15) are inserted into the temperature and humidity sensor fixing line (3); A first separator (9) and a second separator (10) are provided in the temperature and humidity collection terminal (6), and the first separator (9) and the second separator (10) divide the internal space of the temperature and humidity collection terminal (6) into a first cavity (11), a second cavity (12) and a third cavity (13); The first cavity (11) is close to the parameter acquisition branch cable (2); The third cavity (13) is far away from the parameter acquisition branch cable (2); The second cavity (12) is located between the first cavity (11) and the third cavity (13).

2. The integrated grain storage greenhouse water detection system according to claim 1 is characterized in that: The temperature and humidity collector is arranged in the first cavity (11); The first signal transmission line (14) and the second signal transmission line (15) pass through the second cavity (12) and the third cavity (13) in sequence.

3. The integrated grain storage greenhouse water detection system according to claim 2 is characterized in that: A collection hole (7) is provided on the surface of the temperature and humidity collection terminal (6), and the collection hole (7) is in communication with the first cavity (11).

4. The integrated grain storage greenhouse water detection system according to claim 3 is characterized in that: The temperature and humidity collection terminal (6) is provided with fixing holes (8) at both ends, and is detachably connected to the temperature and humidity sensor fixing wire (3) via fixing bolts passing through the fixing holes (8).

5. The integrated grain storage greenhouse water detection system according to any one of claims 1 to 4, characterized in that: The model of the temperature and humidity sensor is GXHT3W-2115D01.

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