阅读说明：本技术 一种土壤参数计 (Soil parameter meter ) 是由 刘昌为 于 2021-01-27 设计创作，主要内容包括：本发明公开了一种土壤参数计,包括竖直土壤参数传感器电路板,传感器电路板与外壳接缝点,土壤参数电路,土壤参数传感器圆柱腔体,防水密封塞,固定柱,水平圆板电路板,立式电池座,纽扣电池,固定孔,立式电池固定孔。本发明基于榫卯结构结合圆柱腔体的固定螺柱,使电路板稳固性大幅增强,不再担心频繁抽插进土壤后导致的松动；使电池可以竖直放入,将需要防水密封的点降为一个,大幅降低了密封防水成本,提高防水等级；使外壳简化为一个单纯圆柱腔体和密封胶塞,大幅降低了参数计体积、模具复杂程度和注塑材料消耗量,大幅降低土壤参数计的综合成本。(The invention discloses a soil parameter meter which comprises a vertical soil parameter sensor circuit board, a joint point of the sensor circuit board and a shell, a soil parameter circuit, a cylindrical cavity of the soil parameter sensor, a waterproof sealing plug, a fixing column, a horizontal circular board circuit board, a vertical battery seat, a button battery, a fixing hole and a vertical battery fixing hole. The fixing stud is combined with the cylindrical cavity based on the mortise and tenon structure, so that the stability of the circuit board is greatly enhanced, and the looseness caused by frequent drawing and inserting into soil is avoided; the battery can be vertically placed, and the number of points needing waterproof sealing is reduced to one, so that the sealing and waterproof cost is greatly reduced, and the waterproof grade is improved; the shell is simplified into a pure cylindrical cavity and a sealing rubber plug, the size of the parameter meter, the complexity of the mould and the consumption of injection molding materials are greatly reduced, and the comprehensive cost of the soil parameter meter is greatly reduced.)

1. A soil parameter meter comprising:

vertical soil parameter sensor circuit board (101), sensor circuit board and shell seam point (102), soil parameter circuit (103), soil parameter sensor cylinder cavity (105), waterproof sealing plug (107), fixed column (201), horizontal plectane circuit board (203), vertical cell seat (205), button cell (209), fixed orifices (301), vertical cell fixed orifices (302), its characterized in that: the outer cavity structure consists of a waterproof sealing plug (107) and a soil parameter sensor cylindrical cavity (105), a vertical soil parameter sensor circuit board (101), a horizontal circular board circuit board (203) and a wireless communication module (207) are combined through a mortise and tenon joint structure, the sensor circuit board penetrating through the soil parameter sensor cylindrical cavity (105) and a shell joint point (102), pass fixed orifices (301) through the screw and combine with fixed column (201), fix circular plate circuit board (203), vertical soil parameter sensor circuit board (101) and soil parameter sensor cylinder cavity (105) for a firm whole, vertical battery seat (205) are fixed through vertical battery fixed orifices (302), button cell (209) alright in vertical insert cavity very conveniently, whole product only has sensor circuit board and shell seam point (102) department to need sealed.

2. A soil parameter meter according to claim 1, wherein said horizontal circular board circuit board (203) provides a vertical soil parameter sensor circuit board (101) with a fixing function while providing a longitudinal space for the vertical battery holder (205).

3. A soil parameter meter according to claim 1, wherein the vertical battery holder (205) provides a vertical insertion cavity for the button battery (209) through the battery fixing hole (302), and an openable sealing cavity is not required to be separately manufactured for battery replacement.

Technical Field

The invention relates to the field of soil parameter measurement, in particular to a low-cost product and a scheme for measuring soil parameters of an internet of things.

Background

At present, the soil parameter meter is mainly used for measuring parameters such as soil fertility, humidity, illumination, temperature and the like during agricultural cultivation. Currently, the soil parameter meters sold on the market are generally divided into the following types: 1. single machine off-net soil parameter meter; 2. a Bluetooth soil parameter meter; and 3, a WIFI soil parameter meter. The first soil parameter meter cannot be used for long-term remote monitoring and is a soil parameter meter for measuring according to needs. The second type of Bluetooth soil parameter meter cannot be used for remote monitoring, can be used for short-distance monitoring, and has high requirements on water resistance and battery replacement, so that the structure is complex; the third WIFI soil parameter meter can be used for remote monitoring, but still has waterproof and battery replacement requirements and is complex in structure. The complicated structure directly influences the waterproof performance and the manufacturing cost of the product, and the soil parameter meter is also mostly used for outdoor long-term monitoring and needs to be used in large quantities, and the high cost greatly limits the product internet of things and popularization and application.

For a product with a large dosage in a specific scene, such as a soil parameter meter, the cost is a very critical factor, and the internet of things popularization of the product is directly hindered. The cost is reflected by comprehensive factors, such as the requirements of sealing, water proofing and structural stability, and the cost investment of the initial mould is greatly increased.

First, the increased manufacturing cost associated with the problem of waterproof sealing for outdoor use, such meters typically require at least three sealing points: the battery replacement point, the upper and lower housing seam points, and the sensor circuit board and housing seam points, wherein the seal structure of the battery replacement point, the upper and lower housing seam points increases the housing cost by more than 5-10 times, as it relates to the sealing engagement of the rubber mat and the plastic structure.

Secondly, the cost increase due to structural stability. The soil parameter meter often needs to be pulled out and inserted in soil, and if the fixed structure is unreasonable, frequent use can produce the pine, leads to leaking or the circuit is loose and damages because of the leakproofness reduces. Generally, in order to ensure stability, most of the parameter meters adopt an upper and lower cover closing mode and are fixed through screw holes, so that upper and lower cover closing joint points or screw hole joint points are generated, the sealing problem is introduced, and the leakage-proof cost is greatly increased.

Finally, the addition of battery, because frequently change the problem, can bring sealed demand and the increase of structural cost, if still need compromise structural stability, must sacrifice the convenience that the battery was changed so, overall cost increases by a wide margin.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: under the condition of ensuring the sealing, waterproof and structural stability, the comprehensive cost of the soil parameter meter is greatly reduced.

The technical scheme adopted by the invention for solving the technical problems is as follows: a soil parameter meter comprising:

vertical soil parameter sensor circuit board (101) for the direct contact soil collects fertility, humidity, illumination and temperature parameter in the soil, its characterized in that: the outer cavity structure consists of a waterproof sealing plug (107) and a cylindrical cavity (105) of the soil parameter sensor. The vertical soil parameter sensor circuit board (101), the horizontal circular plate circuit board (203) and the wireless communication module (207) are combined through a mortise and tenon joint structure, the sensor circuit board penetrating through the soil parameter sensor cylindrical cavity (105) and a shell joint point (102) are combined through screws penetrating through fixing holes (301) and fixing columns (201), and the circular plate circuit board (203), the vertical soil parameter sensor circuit board (101) and the soil parameter sensor cylindrical cavity (105) are fixed into a stable whole. The vertical battery seat (205) is fixed through the vertical battery fixing hole (302), the button battery (209) can be vertically inserted into the cavity conveniently, and only one seam point of the whole product needs to be sealed.

Preferably, the horizontal circular plate circuit board (203) provides a longitudinal space for the vertical battery holder (205) and simultaneously provides a fixing function for the vertical soil parameter sensor circuit board (101).

Preferably, the vertical battery holder (205) provides a mounting mode of a vertical insertion cavity for the button battery (209) through the battery fixing hole (302), and an openable sealing cavity does not need to be separately manufactured for replacing the battery.

The tenon-and-mortise structure-based fixing device has the advantages that the fixing stud of the cylindrical cavity is combined based on the tenon-and-mortise structure, so that the stability of the circuit board is greatly enhanced, and the looseness caused by frequent drawing and inserting into soil is avoided; the battery can be vertically placed, and the number of points needing waterproof sealing is reduced to one, so that the sealing and waterproof cost is greatly reduced, and the waterproof grade is improved; the shell is simplified into a pure cylindrical cavity and a sealing rubber plug, the size of the parameter meter, the complexity of the mould and the consumption of injection molding materials are greatly reduced, and the comprehensive cost of the soil parameter meter is greatly reduced.

Drawings

FIG. 1 is a schematic view of a soil parameter meter.

FIG. 2 is a schematic diagram of the internal structure of the soil parameter meter.

FIG. 3 is a schematic diagram of a soil parameter meter circuit board structure.

Fig. 4 is a soil parameter meter and thing networking logic block diagram.

FIG. 5 is a diagram of soil parameter meter water tightness test data.

FIG. 6 is a normalized analysis chart of batch production cost of soil parameter meter.

In the figure: 101-vertical soil parameter sensor circuit board, 102-joint point of sensor circuit board and shell, 103-soil parameter circuit, 105-cylindrical cavity of soil parameter sensor, 107-waterproof sealing plug; 201-fixed column, 203-horizontal circular board circuit board, 205-vertical battery holder, 207-wireless communication module, 209-button battery; 301-fixing hole, 302-vertical battery fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the implementation of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the invention lowers the points to be sealed to one point (only the joint points between the sensor circuit board and the housing) through the ingenious structural design, and combines the vertical soil parameter sensor circuit board 101 and the horizontal circular board circuit board 203 together through the tenon-and-mortise structure of the circuit boards, so that the horizontal circular board circuit board 203 provides a longitudinal space for the vertical battery holder 205 and also provides a fixing function for the vertical soil parameter sensor circuit board 101. The mortise and tenon structure is combined with the fixing stud of the cylindrical cavity, so that the stability of the vertical soil parameter sensor circuit board 101 can be greatly enhanced, the looseness caused by frequent drawing and inserting into soil is avoided, and only the joint point 102 between the sensor circuit board and the shell needs to be sealed, so that the production cost is greatly reduced. Among the sealing devices, the circular sealing method is the most reliable and the most cost-effective.

As shown in fig. 2 and 3, the external cavity structure of the invention is composed of a waterproof sealing plug 107 and a soil parameter sensor cylindrical cavity 105. The combined circuit board structure (the wireless communication module 207, the horizontal circular board circuit board 203 and the vertical soil parameter sensor circuit board 101) penetrates through the joint point 102 between the sensor circuit board of the soil parameter sensor cylindrical cavity 105 and the shell, and screws penetrate through the fixing holes 301 to be combined with the fixing columns 201, so that the horizontal circular board circuit board 203, the vertical soil parameter sensor circuit board 101 and the cylindrical cavity 105 are fixed into a stable whole. The vertical battery seat 205 is fixed through the vertical battery fixing hole 302, so that the button battery 209 can be vertically inserted into the cavity conveniently and conveniently without independently manufacturing an openable sealed cavity for replacing the battery.

As shown in fig. 4, the soil parameter meter overall circuit logic converts relevant information in soil into signals according to the capacitive reactance component, the signals are converted into data through the converter, a quantifiable parameter value is obtained through processing of the processor model, finally the wireless radio frequency component interacts with the local area gateway cloud server, and the relevant data can be transmitted to a mobile phone terminal, a PC terminal or a webpage terminal, so that a user can remotely check the relevant parameter information of the soil.

As shown in fig. 5, the mortise and tenon structure is combined with the fixing stud of the cylindrical cavity, so that the battery can be vertically placed, the number of points needing waterproof sealing is reduced to one, the cost of sealing and waterproofing is greatly reduced, and the waterproof grade is improved. The soil parameter meter based on the structure is used for sealing test underwater, water seepage and pressure relief can only occur at the depth of 5.0 m, the overall sealing performance reaches IPx7, and the conventional soil parameter meter for the internet of things can only reach the IPx4 grade due to too many seams.

As shown in fig. 6, the mortise and tenon structure is combined with the fixing stud of the cylindrical cavity, so that the shell is simplified into a pure cylindrical cavity and a sealing rubber plug, and the volume of the parameter meter, the complexity of the mold and the consumption of the injection molding material are greatly reduced. The cost is a result of the effect of a comprehensive factor (assembly, material consumption, structural complexity, sealing performance, mold opening quantity, manpower and the like), and can not be analyzed independently, so that the comprehensive production cost of the soil parameter meter adopting the scheme is only 1/3 of a conventional product according to the normalized analysis, the general shell of the conventional product is 4-6 times of the cost of internal hardware, the shell cost of the soil parameter meter is less than 1/2 of the hardware cost, and the great reduction of the comprehensive cost greatly promotes the process of the internet of things of the soil parameter meter, so that more farmers and planting enthusiasts benefit.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.