CN113640254B - Crop growth information sensor capable of maintaining self-balance - Google Patents
Crop growth information sensor capable of maintaining self-balance Download PDFInfo
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- CN113640254B CN113640254B CN202110919880.2A CN202110919880A CN113640254B CN 113640254 B CN113640254 B CN 113640254B CN 202110919880 A CN202110919880 A CN 202110919880A CN 113640254 B CN113640254 B CN 113640254B
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- reflected light
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- 230000012010 growth Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 103
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000012545 processing Methods 0.000 claims abstract description 44
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000002310 reflectometry Methods 0.000 description 5
- 238000013480 data collection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
Abstract
The application relates to a crop growth information sensor capable of maintaining self-balance, which comprises a shell and a balancing device arranged outside the shell; the data processing circuit board is arranged in the shell and is coaxial with the shell, the data processing circuit board is used as a battery symmetrically arranged on a symmetrical plane, and each center of gravity is positioned on the axis of the shell and is sequentially arranged on the incident light detection mechanism, the incident light signal detection circuit board, the reflected light signal detection circuit board and the reflected light detection mechanism; the receiver in the incident light detection mechanism is electrically connected with the data receiving port of the incident light signal detection circuit board, the receiver in the reflected light detection mechanism is electrically connected with the data receiving port of the reflected light signal detection circuit board, and the data output ports of the incident light signal detection circuit board and the reflected light signal detection circuit board are respectively electrically connected with the data receiving port of the data processing circuit board; the positive and negative poles of the battery are respectively and electrically connected with the positive and negative ports of the data receiving and processing circuit board to form a loop.
Description
Technical Field
The application relates to the field of optical sensor monitoring, in particular to a crop growth information sensor capable of maintaining self-balance.
Background
The real-time lossless acquisition of the crop growth information can provide data support for accurately regulating and controlling the crop growth, and is the basis of intelligent agriculture. The crop growth information sensor which is popularized and applied in production at present is mainly concentrated on field crops such as rice, wheat and the like, but most vegetable crops and oil crops are in urgent need of the growth information sensor which can be applied in production. The sensor obtains the spectral reflectance of crop through receiving sunshine and crop canopy reflected light intensity, can calculate the growth information of obtaining the crop according to the reflectance, the sensor upper surface that receives sunshine in the use is required to be in the horizontality to guarantee the accuracy of collection data, can be furnished with the horizon for this sensor, by the user adjust the horizontality of sensor before the data collection, but the efficiency of manual adjustment horizontality is extremely low, and the required time often is several minutes to ten minutes, and by handheld sensor of hand during data collection moreover, extremely difficult assurance sensor upper surface is the horizontality all the time to influence the accuracy of sensor collection data. For this purpose we have devised the present application.
Disclosure of Invention
According to the application, the balance device is arranged outside the sensor shell, so that the effect of automatically keeping the balance of the sensor is achieved, meanwhile, the detection mechanisms are arranged at the upper end and the lower end of the sensor, the reflectivity of the ground object information to be detected can be obtained through the ratio of the energy data of the ground object reflected light signal to the energy data of the solar incident light signal, and the working efficiency is high.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a crop growth information sensor capable of maintaining self-balance, comprising
A housing;
the balancing device is arranged outside the shell;
a data processing circuit board mounted in the housing coaxially disposed therewith;
the battery mounting cylinders are symmetrically arranged by taking the data processing circuit board as a symmetry plane;
each gravity center is positioned on the axis of the shell and is sequentially provided with an incident light detection mechanism, an incident light signal detection circuit board, a reflected light signal detection circuit board and a reflected light detection mechanism;
the receiver in the incident light detection mechanism is electrically connected with the data receiving port of the incident light signal detection circuit board, the receiver in the reflected light detection mechanism is electrically connected with the data receiving port of the reflected light signal detection circuit board, and the data output ports of the incident light signal detection circuit board and the reflected light signal detection circuit board are respectively electrically connected with the data receiving port of the data processing circuit board; the positive electrode and the negative electrode of the battery are respectively and electrically connected with the positive electrode port and the negative electrode port of the data receiving and processing circuit board to form a loop.
When the sensor acquires the data of the optical signals, the surfaces at the upper end and the lower end can not always keep a horizontal state in a handheld or clamping state, and the measurement error can be reduced by using the balancing device, so that the quality of the two sides of the data processing circuit board is basically the same by symmetrically arranging the batteries at the two sides of the data processing circuit board, and the balance of the sensor can be effectively helped. The upper end and the lower end of the sensor are respectively provided with an incident light detection mechanism and a reflected light detection mechanism, the central axis of the sensor is in a vertical state when the light signals of the ground object information are measured, the incident light detection mechanism receives the light signals of the sun horizontally and the reflected light detection mechanism receives the light signals of the ground object reflected horizontally and downwards, the two light signals are respectively converted and transmitted to the data processing circuit board through the incident light signal detection circuit board and the reflected light signal detection circuit board, and the ratio of the energy data of the ground object reflected light signals to the energy data of the solar incident light signals is the reflectivity of the ground object to be measured. When the application is used, the sensor can automatically keep a vertical state by only holding the balancing device, and the optical signal data in the good state can be obtained, the reflectivity of the ground object information can be conveniently and rapidly obtained, and the measuring work efficiency is high.
According to a further improvement scheme of the application, the balancing device is a balancing ring, the balancing ring is composed of at least two connecting rings which are movably connected, the balancing ring comprises a first connecting ring of an inner layer and a second connecting ring of an outer layer, and a handle is fixed outside the second connecting ring.
According to the further improved scheme, the first connecting ring is an inner connecting ring, a pair of erection holes are symmetrically formed in two sides of the outer wall of the shell, clamping columns used for being clamped into the erection holes are arranged at the inner periphery of the first connecting ring, the clamping columns are cylindrical, the tops of the clamping columns are hemispherical, and when the balance ring is installed on the shell, the tops of the clamping columns are abutted to the bottoms of the erection holes.
According to a further improvement of the application, friction surfaces are arranged on the outer surfaces of the clamping columns and/or the inner surfaces of the erection holes.
According to a further improvement scheme of the application, the incident light detection mechanism and the reflected light detection mechanism have the same main structure and comprise end covers respectively arranged on the two detection mechanisms, light filter mounting through holes penetrating through the upper surface and the lower surface of the end covers, and light-transmitting hole seats which are coaxially arranged on one surface of the end covers and are provided with upper and lower openings, wherein the light filter mounting through holes are internally provided with light filters and are fixed on the light-transmitting hole seats through light filter end covers, and the light filter end covers are provided with receivers.
According to a further improvement scheme of the application, the incident light detection mechanism comprises a first wave band incident light detection mechanism and a second wave band incident light detection mechanism, and the reflected light detection mechanism comprises a first wave band reflected light detection mechanism and a second wave band reflected light detection mechanism.
According to the further improved scheme, a placing step is arranged on the inner wall of the filter mounting through hole, when the filter is placed on the placing step, the height of the filter is higher than the upper edge of the light hole seat, the filter is fixed through a filter end cover which can be connected in a spiral mode, a light hole and a mounting hole for mounting the receiver are further formed in the filter end cover, and the light hole and the mounting seat are both coaxially arranged with the light hole seat.
According to a further improvement scheme of the application, the data processing circuit board is vertically arranged in the shell, and the incident light signal detection circuit board and the reflected light signal detection circuit board are respectively arranged at the upper end and the lower end of the data processing circuit board through the plug grooves and are electrically connected with the data processing circuit board.
According to the further improved scheme, vertical battery mounting barrels are symmetrically arranged on two sides of the data processing circuit board respectively, batteries are mounted in the battery mounting barrels, the top end of each battery mounting barrel is a positive end, the bottom end of each battery mounting barrel is a negative end, the positive ends are electrically connected with positive power ports of the data processing circuit board, and the negative ends are electrically connected with negative power ports of the data processing circuit board through metal leading-out sheets.
According to the further improved scheme, the battery cover plate is further arranged at the bottom end of the battery mounting cylinder, the metal pressing sheet is fixed on the battery cover plate, and when the battery cover plate is buckled at the bottom end of the battery mounting cylinder, the metal pressing sheet is effectively contacted with the metal leading-out sheet.
The beneficial effects brought by the application are as follows:
(1) When the sensor acquires the data of the optical signals, the surfaces at the upper end and the lower end can not always keep a horizontal state in a handheld or clamping state, and the measuring error can be reduced by using the balancing device. The upper end and the lower end of the sensor are respectively provided with an incident light detection mechanism and a reflected light detection mechanism, the central axis of the sensor is in a vertical state when the light signals of the ground object information are measured, the incident light detection mechanism receives the light signals of the sun light in an upward horizontal direction, the reflected light detection mechanism receives the light signals of the ground object reflection in a downward horizontal direction, the two light signals are respectively converted by an incident light signal detection circuit board and a reflected light signal detection circuit board and transmitted to a data processing circuit board, and the ratio of the energy data of the ground object reflected light signals to the energy data of the sun incident light signals is the reflectivity of the ground object to be measured. When the application is used, the sensor can be automatically kept vertical only by holding the handle of the balance ring, so that the surfaces of the upper end and the lower end of the sensor, which receive sunlight and crop reflected light, are automatically in a horizontal state, and the optical signal data in a good state are obtained, thereby conveniently and rapidly obtaining the reflectivity of ground object information, ensuring the accuracy of measurement and improving the efficiency of measurement work.
(2) The balance ring is simple and easy to obtain, at least two connecting rings are arranged, the number of the connecting rings can be increased continuously in the same structural mode outside the second connecting ring, the effect of automatic balance of the sensor can be achieved only by being held by hands, and the operation is very simple and convenient.
(3) The clamping column is cylindrical, the top of the clamping column is semicircular, and when the sensor sinks under the gravity of the sensor, the contact surface between the clamping column and the erection hole is small, so that the balance ring is sensitive when being erected on the sensor shell, the top of the clamping column is propped against the inner wall of the erection hole when being mutually propped against the erection hole, and the phenomenon that the sensor swings for a long time due to the fact that the balance ring is too sensitive is prevented from entering a stable state is effectively avoided.
(4) The friction surface is arranged on the inner surface of the clamping column or the outer surface of the erection hole or both, so that the contact friction between the clamping column and the erection hole is increased, and the phenomenon that the long-time swing caused by oversensitivity does not enter a stable state is further reduced.
(5) The main structures of the incident light detection mechanism and the reflected light detection mechanism at the two ends of the sensor are the same, and the measurement mode is kept at the same standard, so that the measurement error can be reduced, and the data accuracy is improved.
(6) Two sets of detection mechanisms are arranged according to actual demands, and different wave bands are selected among the sets of detection mechanisms according to crop information so as to meet the demands of research and use.
(7) For better pressfitting, the high light trap seat that is higher than when the light filter was shelved can make the fixed effect of light filter better, and spiral connection's mounting means is convenient for dismouting light filter, convenient installation and maintenance to repeatedly usable light filter.
(8) The incident light signal detection circuit board and the reflected light signal detection circuit board are connected with the data processing circuit board through the plug grooves respectively, so that transmission connection on signals can be realized, convenient mechanical connection is realized, and the structure is simple and the effect is good.
(9) The negative electrode end is electrically connected to the data processing circuit board through the metal leading-out sheet, and forms a loop for supplying power to the data processing circuit board in cooperation with the positive electrode end; wherein the battery positive terminal is protruding, and the negative pole terminal then is the plane, sets up the negative pole terminal and carries out effective contact through the metal preforming on the battery apron and the metal leading-out piece in the bottom, compares in setting up the positive pole terminal here, and its effective contact area is bigger, and the contact effect is good, and the power supply effect is more stable.
Drawings
FIG. 1 is a schematic view of the whole structure of the present application
FIG. 2 is a schematic cross-sectional view of a retaining post and a mounting hole of the balance ring according to the present application
FIG. 3 is a schematic view of the structure of the present application in the housing
FIG. 4 is a schematic view showing the configuration of the combination of the reflected light detecting mechanism and the battery mounting cylinder according to the present application
FIG. 5 is a schematic cross-sectional view of the present application
FIG. 6 is a side cross-sectional view of the state of FIG. 4
Fig. 7 is a schematic view of the internal structure of the battery mounting cylinder
FIG. 8 is a schematic view illustrating the installation of an end cap of a filter according to embodiment 2 of the present application
FIG. 9 is a cross-sectional view of a filter end cap and a filter and end cap according to embodiment 2 of the application
In the figure: 1-a housing; 2-incident light detection mechanism: 201-a first-band incident light detection mechanism and 202-a second-band incident light detection mechanism; 3-reflected light detection mechanism: 31-a first band incident light detection mechanism, 32-a second band incident light detection mechanism; 4-an optical filter mounting through hole; 41-resting steps; a 5-filter; 6-a light hole seat; 7-end caps; 8-an optical filter end cover; 9-mounting seats; 10-a first sealing ring; 11-a second sealing ring; 12-a battery mounting cylinder; 13-battery: 131-positive terminal, 132-negative terminal; 14-battery cover plate; 15-metal tabletting; 16-metal lead-out sheets; 17-balancing ring: 171-first connection ring, 172-second connection ring; 18-an incident light signal detection circuit board; 19-a reflected light signal detection circuit board; 20-a data processing circuit board; 21-a handle; 22-mounting holes; 23-clamping columns; 24-light holes; 25-the light filter light inlet.
Detailed Description
The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various modifications of the application, which are equivalent to those skilled in the art upon reading the application, will fall within the scope of the application as defined in the appended claims.
The application is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the application easy to understand.
Example 1:
the crop growth information sensor capable of maintaining self-balance comprises a shell 1, a balance ring 17 erected outside the shell 1, a data processing circuit board 20 arranged in the shell 1 and coaxially with the shell, a battery mounting cylinder 12 symmetrically arranged by taking the data processing circuit board 20 as a symmetry plane, an incident light detection mechanism 2, an incident light signal detection circuit board 18, a reflected light signal detection circuit board 19 and a reflected light detection mechanism 3, wherein the centers of gravity of the incident light detection mechanism 2, the incident light signal detection circuit board 18, the reflected light signal detection circuit board 19 and the reflected light detection mechanism 3 are all positioned on the axis of the shell 1 and are sequentially arranged up and down; the receiver in the incident light detection mechanism 2 is electrically connected with the data receiving port of the incident light signal detection circuit board 18, the receiver in the reflected light detection mechanism 3 is electrically connected with the data receiving port of the reflected light signal detection circuit board 19, and the data output ports of the incident light signal detection circuit board 18 and the reflected light signal detection circuit board 19 are respectively electrically connected with the data receiving port of the data processing circuit board 20; the positive and negative poles of the battery 13 are respectively and electrically connected with the positive and negative ports of the data receiving and processing circuit board to form a loop.
In this solution, the two sides of the data processing circuit board 20 are symmetrically provided with the vertical battery mounting barrels 12, in this solution, since the sensor housing 1 is also provided with the balancing device, the battery mounting barrels 12 are provided with two battery mounting barrels and correspondingly provided on two sides of the data processing circuit board 20, it should be understood that the core idea in this solution is to keep the balance of two sides of the data processing circuit board 20, and the mass of the battery 13 is the largest, so that the shape or corners of the battery mounting barrels 12 with other structures such as two sides are not identical, but the values of the left and right mass differences are negligible relative to the battery 13, so that the above design requirements are met. In addition, the other structures can be symmetrically arranged by taking the data processing circuit board 20 as a symmetrical plane on the basis of the principle so as to reduce the interference on automatic balance.
In this scheme, balancing unit is balancing ring 17, and balancing ring 17 comprises two at least swing joint's go-between, including the first go-between 171 of inlayer and outer second go-between 172, wherein first go-between 171 is the inner go-between, has seted up on the casing 1 and has erect hole 22, and first go-between 171 inner periphery is equipped with and is used for the card to go into erect hole 22's card post 23, the card post 23 is cylindrical, the top is established to hemispherical, when balancing ring 17 installs on casing 1 the top of card post 23 with erect hole 22 bottom and contradict. In addition, the outer surface of the clamping column 23 or the inner surface of the erection hole 22 or both the outer surface of the clamping column 23 and the inner surface of the erection hole 22 are provided with friction surfaces, so that the friction of contact between the clamping column 23 and the erection hole is increased, and the problem that the sensor is not in a stable state due to long-time swinging caused by oversensitivity is further reduced. The handle 21 is fixed to the outside of the second connecting ring 172. In use, the handle 21 is held, and under the condition that the angle is properly deviated, even if the second connecting ring 172 presents a skew angle, the sensor can be automatically reset and kept in a vertical state under the action of gravity.
In this embodiment, the rear end of the handle 21 may be provided with a threaded pattern to facilitate threaded connection to the device for use according to the application requirements.
It should be appreciated that the balancing apparatus requires at least two connection rings, namely a first connection ring 171 and a second connection ring 172, but the number of connection rings, namely the third connection ring, the fourth connection ring … …, the nth connection ring, etc., may still be increased.
In this scheme, incident light detection mechanism 2 is the same with the main structure of reflected light detection mechanism 3, including establish respectively at the end cover 7 of two detection mechanisms, run through-hole 4 and the installation of upper and lower surface of end cover 7 are in the coaxial upper and lower open-ended light trap seat 6 that sets up of end cover 7 one side and light filter installation through-hole 4, install light filter 5 in the through-hole 4 and fix on light trap seat 6 through light filter end cover 8, install the receiver on the light filter end cover 8. The incident light detecting means 2 comprises a first band incident light detecting means 201 and a second band incident light detecting means 202, the reflected light detecting means 3 comprises a first band reflected light detecting means 31 and a second band reflected light detecting means 32, wherein the first band and the second band are determined by the band range of the optical filter 5.
The data processing circuit board 20 is vertically installed in the housing 1 and is coaxial with the housing 1, and the incident light signal detection circuit board 18 and the reflected light signal detection circuit board 19 are respectively installed at the upper end and the lower end of the data processing circuit board 20 through the plugging slots to form electrical connection with the same.
The battery 13 is installed in the battery installation barrel 12, the top end of the battery installation barrel 12 is an anode end 131, the bottom end is a cathode end 132, the anode end 131 is electrically connected with a power anode port of the data processing circuit board 20, an axial through hole for penetrating the metal lead-out sheet 16 is further formed in the battery installation barrel 12, one end of the metal lead-out sheet 16 is led out of the upper end of the through hole and electrically connected to the power anode port of the data processing circuit board 20, the other end of the metal lead-out sheet is led out of the lower end of the through hole and effectively contacts with the cathode of the battery 13, the bottom end of the battery installation barrel 12 is further provided with a battery cover plate 14, a metal pressing sheet 15 is fixed on the battery cover plate 14, and when the battery cover plate 14 is buckled at the bottom end of the battery installation barrel 12, the metal pressing sheet 15 is effectively contacted with the metal lead-out sheet 16 and the cathode of the battery 13.
The incident light detection mechanism 2 and the reflected light detection mechanism 3 are respectively positioned at two ends of the shell 1, the filter mounting through hole 4 penetrates through the detection mechanism end cover 7, and since the filter 5 purchased in the market has the thickness h1, the filter mounting through hole 4 also has the depth, the inner wall of the filter mounting through hole 4 is provided with a placing step 41, when the filter 5 is placed on the placing step 41, the height of the filter 5 is higher than the upper edge of the light hole seat 6, the filter end cover 8 is also provided with a mounting seat 9 for mounting a receiver and a light hole 24, the mounting seat 9 and the light hole 24 are coaxially arranged with the light hole seat 6, external threads are carved on the periphery of the light hole seat 6, the external threads are matched with the internal threads of the filter end cover 8, and when the filter 5 is mounted in the filter mounting through hole 4, the filter end cover 8 can be rotationally connected on the light hole seat 6 for fixing.
In this scheme, the light trap seat 6 internal diameter is the same with light filter installation through-hole 4, and light filter 5 obtains through the mode of purchasing from market, can form different angle of view theta through setting up radius r and the degree of depth h of different light trap 24, for the acquisition that is fit for plant growth information, the range of angle of view theta in the reflection light detection mechanism is 25~30, and the ratio scope of r and h is set to tan12.5 to tan15 promptly. The gap between the two side rest steps 41 is the filter light inlet 25, the radius of the filter light inlet 25 is R, and R is required to meet R/(h1+h) equal to or greater than R/h, wherein h1 is the thickness of the filter. The depth h of the light transmitting hole 24 of the incident light detecting means is 0.
Example 2:
in this embodiment 2, on the basis of the above embodiment 1, the sealing relationship between the filter end cover 8 and the filter 5 is further improved, and the periphery of the light hole seat 6 is tightly sleeved with the first sealing ring 10, so that the filter end cover 8 can be in interference fit with the first sealing ring 10 when screwed onto the light hole seat 6. In addition, when the optical filter 5 is placed on the placing step, the height of the optical filter is higher than the upper edge of the light-transmitting hole seat 6, the second sealing ring 11 is placed on the optical filter 5, and when the optical filter end cover 8 rotates to be in contact with the first sealing ring 10, the optical filter end cover presses the second sealing ring 11 and the optical filter 5, so that the optical filter 5 is fixed.
The rest is the same as the above embodiment, and will not be repeated here.
The foregoing has shown and described the basic principles and main features of the present application and the advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (9)
1. A crop growth information sensor capable of maintaining self-balance, characterized in that: comprising
A housing (1);
a balancing device arranged outside the shell (1); the balance device is a balance ring (17), the balance ring (17) is composed of at least two connecting rings which are movably connected, the balance ring comprises a first connecting ring (171) of an inner layer and a second connecting ring (172) of an outer layer, the first connecting ring (171) is an inner connecting ring, a pair of erection holes (22) are symmetrically formed in two sides of the outer wall of the shell (1), a pair of clamping columns (23) used for being clamped into the erection holes (22) are arranged on the inner periphery of the first connecting ring (171), and when the balance ring (17) is installed on the shell (1), the top of the clamping columns (23) is abutted to the bottom of the erection holes (22);
a data processing circuit board (20) which is arranged coaxially with the housing (1) and is arranged in the housing,
a battery mounting cylinder (12) symmetrically arranged by taking the data processing circuit board (20) as a symmetry plane, wherein a battery (13) is mounted in the battery mounting cylinder (12);
the incident light detection mechanism (2), the incident light signal detection circuit board (18), the reflected light signal detection circuit board (19) and the reflected light detection mechanism (3) are sequentially arranged on the axis of the shell (1) from top to bottom in each gravity center;
the receiver in the incident light detection mechanism (2) is electrically connected with the data receiving port of the incident light signal detection circuit board (18), the receiver in the reflected light detection mechanism (3) is electrically connected with the data receiving port of the reflected light signal detection circuit board (19), and the data output ports of the incident light signal detection circuit board (18) and the reflected light signal detection circuit board (19) are respectively electrically connected with the data receiving port of the data processing circuit board (20); the positive electrode and the negative electrode of the battery (13) are respectively and electrically connected with the positive electrode port and the negative electrode port of the data processing circuit board to form a loop;
the incident light detection mechanism (2) and the main structure of the reflected light detection mechanism (3) are the same, and the light detection mechanism comprises end covers (7) which are respectively arranged on the two detection mechanisms, an optical filter installation through hole (4) which penetrates through the upper surface and the lower surface of the end covers (7) and a light transmission hole seat (6) which is arranged on one surface of the end covers (7) and is coaxial with the optical filter installation through hole (4) and is provided with an upper opening and a lower opening, an optical filter (5) is installed in the optical filter installation through hole (4) and is fixed on the light transmission hole seat (6) through an optical filter end cover (8), and a receiver is installed on the optical filter end cover (8).
2. The self-balancing crop growth information sensor of claim 1, wherein: the second connecting ring (172) is externally fixed with a handle (21).
3. The self-balancing crop growth information sensor of claim 2, wherein: the clamping column (23) is cylindrical, and the top of the clamping column is hemispherical.
4. A self-balancing crop growth information sensor according to claim 3, wherein: the outer surface of the clamping column (23) and/or the inner surface of the erection hole (22) are provided with friction surfaces.
5. The self-balancing crop growth information sensor of claim 4, wherein: the incident light detection mechanism (2) comprises a first-band incident light detection mechanism (201) and a second-band incident light detection mechanism (202), and the reflected light detection mechanism (3) comprises a first-band reflected light detection mechanism (31) and a second-band reflected light detection mechanism (32).
6. The self-balancing crop growth information sensor of claim 5, wherein: the filter mounting through hole (4) inner wall is equipped with and sheds step (41), when light filter (5) are shelved on shelve step (41), its height is higher than the upper edge of light trap seat (6), but light filter (5) are fixed through screwed connection's light filter end cover (8), but light trap (24) and be used for installing on light filter end cover (8) mount pad (9) of receiver, just light trap (24) with mount pad (9) all with light trap seat (6) coaxial setting.
7. The self-balancing crop growth information sensor of claim 6, wherein: the data processing circuit board (20) is vertically arranged in the shell (1), and the incident light signal detection circuit board (18) and the reflected light signal detection circuit board (19) are respectively arranged at the upper end and the lower end of the data processing circuit board (20) through the plug grooves and are electrically connected with the data processing circuit board.
8. The self-balancing crop growth information sensor of claim 7, wherein: the data processing circuit board (20) both sides symmetry respectively are provided with vertical battery installation section of thick bamboo (12), the top of battery installation section of thick bamboo (12) is anodal end (131), and the bottom is negative pole end (132), anodal end (131) with the positive port electric connection of power of data processing circuit board (20), negative pole end (132) through metal leading-out sheet (16) with the negative port electric connection of power of data processing circuit board (20).
9. The self-balancing crop growth information sensor of claim 8, wherein: the bottom of the battery installation cylinder (12) is also provided with a battery cover plate (14), a metal pressing sheet (15) is fixed on the battery cover plate (14), and when the battery cover plate (14) is buckled at the bottom of the battery installation cylinder (12), the metal pressing sheet (15) is in effective contact with the metal leading-out sheet (16).
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