CN114509393A - Detection system and detection method - Google Patents

Abstract

The application discloses a detection system, comprising at least one optical detection device, a light source controller and a light source controller, wherein the optical detection device is used for receiving detection light beams with a plurality of wavelengths from a detection object and generating a plurality of image information corresponding to the detection light beams with the plurality of wavelengths; at least one communication device connected to the plurality of optical detection devices; the control device is connected with the communication device and can communicate with the optical detection device through the communication device, and the control device can generate a corresponding control instruction based on the image information received by the communication device from the optical detection device; and the function device is used for receiving the control instruction and executing a corresponding function so as to change the parameter information of the detection object. The application also discloses a detection method. This application is better to crops detection effect.

Description

Detection system and detection method

Technical Field

The application relates to the field of photoelectric technology, in particular to a detection system and a detection method.

Background

With the technological progress, some technical innovations are also introduced into the traditional agricultural operation mode, for example, scientific planting, cultivation and management methods are adopted for crops, and the yield and the quality of the crops are improved. There is an increasing demand for detection and analysis of various indicators of crops.

Disclosure of Invention

The application provides a detection system and a detection method which are good in crop detection effect.

One aspect of the present application provides a detection system comprising:

at least one optical detection device for receiving detection beams having a plurality of wavelengths from a detection object and generating a plurality of image information of the detection object corresponding to the detection beams having the plurality of wavelengths;

at least one communication device connected to the plurality of optical detection devices;

the control device is connected with the communication device and can communicate with the optical detection device through the communication device, the control device can generate a corresponding control instruction based on image information received from the optical detection device through the communication device, and the control device is used for comparing the image information of the detection object generated by the optical detection device with pre-stored image data to acquire parameter information about the detection object and sending the control instruction to the function device according to the parameter information; or: the optical detection device is also used for comparing the image information of the detection object with pre-stored image data and outputting parameter information related to the detection object according to a comparison result, and the control device receives the parameter information and sends a control instruction to the function device; and

and the function device is used for receiving the control instruction and executing a corresponding function on the detection object so as to change the parameter information of the detection object.

In some embodiments of the present application, the optical detection device comprises: a filter unit for selectively allowing detection beams of different wavelengths to pass therethrough; the image unit is used for receiving the detection light beams with different wavelengths returned by the detection object and transmitted through the light filtering unit, and converting the detection light beams into corresponding electric signals so as to generate corresponding image information; a substrate positioned below the image unit.

In some embodiments of the present application, the filter unit includes a resonant cavity, the resonant cavity includes a first optical component and a second optical component which are arranged in parallel and opposite to each other, a distance between the first optical component and the second optical component is adjustable, and a size of the resonant cavity is adjusted by adjusting the distance between the first optical component and the second optical component, so that a detection beam having a wavelength corresponding to a size of the resonant cavity is transmitted through the resonant cavity.

In some embodiments of the present application, the filter unit includes a resonant cavity, the resonant cavity includes a spacer layer located between the first optical component and the second optical component, and a size of the resonant cavity is adjusted by adjusting a thickness of the spacer layer, so that a detection beam having a wavelength corresponding to a size of the resonant cavity is transmitted through the resonant cavity.

In some embodiments of the present application, the filtering unit includes a MEMS filter including a resonant cavity that changes size accordingly in accordance with a voltage change applied thereto.

In some embodiments of the present application, the optical detection apparatus further comprises a light source for emitting the detection beam when a light intensity of the detection beam in the ambient light is lower than a preset threshold.

In some embodiments of the present application, the optical detection device further includes at least one communication device, the control device and the optical detection device are separately disposed, and the communication device is connected to and communicates with the optical detection device and the control device respectively through a wireless and/or wired network protocol.

In some embodiments of the present application, the control device is configured to compare the acquired image information about the detection object with pre-stored image data to generate parameter information about the detection object, and send a control instruction to the function device according to the parameter information; or the optical detection device is also used for comparing the acquired image information about the detection object with the pre-stored image data and outputting the parameter condition about the detection object according to the comparison result, and the control device receives the parameter information and sends a control instruction to the function device.

In some embodiments of the present application, the control device includes a processor and a memory, the processor is configured to process image information from the optical detection device, the memory is configured to store an image database including pre-entered image data, and the processor performs a comparison analysis between the image information and the image data in the image database, obtains a matching result, and obtains corresponding parameter information about the detection object according to the matching result.

In some embodiments of the present application, the plurality of image information can be used to generate a plurality of images, and the optical detection device acquires the plurality of image information by respectively collecting detection light beams of different wavelengths from the detection object at different time points.

In some embodiments of the present application, the detection object includes a crop, the parameter information includes one or more of insect threat, freshness, maturity, temperature, humidity, growth condition of the crop, and the functional device includes one or more of a lighting controller, a temperature controller, a humidity controller, and an irrigation controller.

In some embodiments of the present application, the communication device includes a radio frequency transceiver unit integrated in the optical detection device, or the radio frequency transceiver unit is separately disposed outside the optical detection device; the communication device is respectively connected with the optical detection device and the control device through a wireless and/or wired network protocol and communicates with the optical detection device and the control device.

One aspect of the present application provides a detection method, which is applied to the detection system described above, and the detection method includes:

establishing an image data model about the detection object;

collecting detection light beams with different wavelengths returned by a detection object to acquire image information;

carrying out algorithm comparison on the acquired image information and the image data model to obtain a comparison result;

and executing corresponding functions according to the comparison result.

Compared with the prior art, the detection system and the detection method of the application use the Fabry-Perot resonant cavity, can continuously collect image information corresponding to light beams with different wavelengths, do not need to arrange a plurality of optical filters aiming at a plurality of different wavelengths, and have small size and low cost. In addition, the size of the resonant cavity is controlled through the voltage, automatic control can be achieved, operation is not needed, accuracy of resonant cavity size adjustment is good, and continuous multispectral filtering can be achieved. Further, by setting up multispectral image information of crops and an image data model related to parameters, various parameter detection can be realized, and corresponding functions can be executed according to the parameters. This application can be towards crops, and the helping hand is in the comprehensive realization of digital agriculture, wisdom agricultural.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive step.

FIG. 1 is a schematic view of one embodiment of the detection system of the present application;

FIG. 2 is a schematic partial cross-sectional view of the optical detection device of FIG. 1;

FIG. 3 is a schematic partial cross-sectional view of the filter unit of FIG. 2;

FIG. 4 is a schematic illustration of filtering of the resonant cavity of FIG. 3;

FIG. 5 is a schematic flow chart diagram of an embodiment of the detection method of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings. With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or," "and/or," "including at least one of the following," and the like, as used herein, are to be construed as inclusive or mean any one or any combination. For example, "includes at least one of: A. b, C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C ", again for example," A, B or C "or" A, B and/or C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C'. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It should be noted that step numbers such as S10 and S20 are used herein for the purpose of more clearly and briefly describing the corresponding contents, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S20 first and then perform S10 in the specific implementation, which should be within the scope of the present application.

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.

Please refer to fig. 1, which is a schematic diagram of an embodiment of a detection system 1 of the present application. The detection system 1 comprises at least one optical detection device 10, at least one communication device 20, a control device 30 and a function device 40. The optical detection device 10 is configured to receive a detection light beam having a plurality of wavelengths from a detection object and generate a plurality of image information corresponding to the detection light beam having the plurality of wavelengths. The communication device 20 is connected to the plurality of optical detection devices 10. The control device 30 is connected to the communication device 20, and the control device 30 can generate a corresponding control instruction based on the image information received from the optical detection device 10 through the communication device 20. The function device 40 is used for receiving the control instruction and executing corresponding functions.

Alternatively, in some embodiments, the number of the optical detection devices 10 may be multiple, and the multiple optical detection devices 10 may be disposed near crops, such as, but not limited to, orchards, greenhouses, fields, and other areas where crops are planted. Crops include, but are not limited to, vegetables, fruits and other commercial crops.

Optionally, in some embodiments, the optical detection apparatus 10 may further include at least one communication unit therein, the control apparatus 30 and the optical detection apparatus 10 are separately disposed, and the communication unit is connected to and communicates with the optical detection apparatus 10 and the control apparatus 30 respectively through a wireless and/or wired network protocol.

Optionally, in some embodiments, the communication device 20 may include a wireless communication device and/or a wired communication device, and the optical detection device 10 can communicate with the control device 30 through the communication device 20. Further, one communication device 20 may communicate with another communication device 20, such that the communication distance between the optical detection device 10 and the control device 30 is increased by adding the communication device 20. For example, but not limiting of, in some embodiments, the optical detection device 10 is in turn connected to the control device 30 via a plurality of communication devices 20 and enables communication with the control device 30.

Optionally, in some embodiments, the communication between the communication device 20 and the optical detection device 10, the communication device 20, and the communication device 20 and the control device 30 may communicate using a wireless communication protocol or an internet communication protocol.

Optionally, in some embodiments, the communication device 20 may include a radio frequency unit, and the radio frequency unit may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the received downlink information to a central processing unit. In addition, the uplink data is transmitted to the base station. Typically, the radio frequency units include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit can also communicate with a network and other devices through wireless communication. Thus, the optical detection device 10 can exchange data with a remote host (such as the control device 30) through a network to realize remote control.

Alternatively, in some embodiments, the control device 30 may be located remotely from the crop growing area, and the control device 30 may include one or more servers. A plurality of the optical inspection devices 10 may be disposed adjacent to one another in one area (e.g., the same orchard or greenhouse), or a plurality of the optical inspection devices 10 may be disposed in a plurality of different areas (e.g., different orchards or greenhouses) that are remote from one another.

Referring to fig. 2, a partial cross-sectional view of an embodiment of the optical inspection apparatus 10 is shown. The optical inspection device 10 includes a substrate 13, an image unit 12 disposed on the substrate 13, and a filter unit 11 disposed above the image unit 12.

Fig. 3 is a partial cross-sectional view of an embodiment of the filter unit 11. The filtering unit 11 comprises a resonant cavity 101, and the resonant cavity 101 comprises a first optical component 117 and a second optical component 118 which are arranged in parallel and opposite to each other. The distance between the first optical element 117 and the second optical element 118 is adjustable, and the size of the resonant cavity is adjusted by adjusting the distance between the first optical element 117 and the second optical element 118, so that a detection beam with a wavelength corresponding to the size of the resonant cavity 101 is transmitted through the resonant cavity 101. The spacing between the first optical component 117 and the second optical component 118 is defined as the dimension of the resonant cavity 101.

Specifically, the filter unit 11 includes a second support structure 112 opposite to the first support structure 111, the first optical assembly 117 is disposed on the first support structure 111, and the second optical assembly 118 is disposed on the second support structure 112. The first support structure 111 and the first electrode 114 are electrically connected, and an external power source may apply a first voltage to the first support structure through the first electrode 114. The second support structure 112 is electrically connected to the second electrode 115 and the third electrode 116, and an external power source may apply a second voltage to the second support structure 112 through the second electrode 115 and the third electrode 116. The filter unit 11 further comprises a cantilever beam 116 at the side of the second support structure 112. The cantilever beam 116 is deformed under the action of the electrostatic force between the first support structure 111 and the second support structure 112 to achieve horizontal mixing, so as to drive the second support structure 112 to move downward or upward in parallel to achieve horizontal mixing, thereby changing the distance between the first optical component 117 and the second optical component 118, realizing adjustment of the size of the resonant cavity 101, and further controlling the central wavelength of the detection beam capable of passing through the filter unit 11.

Optionally, in some embodiments, the first electrode 114, the second electrode 115, and the third electrode 116 are disposed on a third support structure 113, which is electrically connected to the first support structure 111 or the second support structure 112 by soldering, wire connection, or the like.

Optionally, in some embodiments, the first optical assembly 117 and the second optical assembly 118 are reflective films. The first optical assembly 117 and the second optical assembly 118 have a high reflectivity for at least the detection light beam within a predetermined wavelength range, such as, but not limited to, the reflectivity of the first optical assembly 117 and the second optical assembly 118 for at least the detection light beam within the predetermined wavelength range is greater than or equal to 80% or 85% or 90% or 95% or 98% or 99%. The detection light beam with the preset wavelength range can be a light beam with the wavelength of 700nm (nanometer) to 1000 nm. Alternatively, in some embodiments, the detection light beam in the preset wavelength range may be a light beam with a wavelength between 700nm and 3000 nm.

Referring also to fig. 4, the resonant cavity 101 is shown for filtering the detection beam 1000. The resonant cavity 101 forms a fabry-perot resonant cavity (F-P cavity) with a size D, a detection beam 1000 from a detection object enters from the second optical component 118, and the detection beam 1000 with a wavelength satisfying an interference maximum condition after multiple reflections between the first optical component 117 and the second optical component 118 can penetrate from the first optical component 117 and reach the image unit 12 located below the filtering unit 11. Typically, the detection beam is transmitted through the cavity 101 only if the cavity dimension D is an integer multiple of the wavelength of the detection beam. By adjusting the dimension D of the cavity 101, detection beams 1000 of different wavelengths may be allowed to pass through the cavity 101. It should be noted that the detection beam 1000 here may be a beam reflected or transmitted by the detection object.

Optionally, in some embodiments, the surfaces of the sides of the first support structure 111 and the second support structure 112 facing away from each other are respectively provided with an optical antireflection film 119, 1110 for improving the transmittance of the detection light beam.

Generally, the detection beam is filtered to allow only a fixed wavelength of the detection beam to pass through. In the present application, the filter unit 11 includes the resonant cavity 101, and can optionally allow detection beams with different wavelengths to pass through, and the optical detection device 10 can collect the detection beams with different wavelengths returned by the detection object, so as to obtain a plurality of image information about the detection object at different wavelengths.

Optionally, in some embodiments, the plurality of image information includes information that can be used to generate at least N images about the detection object, N being a positive integer greater than or equal to 3.

Optionally, in some embodiments, the wavelength difference between the detection beams with the multiple wavelengths is any value between 0 and 100 nm.

Optionally, in some embodiments, the wavelength difference between the plurality of wavelengths of the detection beam may be a fixed value or variable.

Alternatively, in some embodiments, the resonant cavity 101 may be, for example, a micro-electromechanical (MEMS) tunable resonant cavity, such as a fabry-perot optical resonant cavity (F P resonant cavity). The resonant cavity 101 may include a spacer made of a piezoelectric material, which may cause deformation due to a reverse piezoelectric effect when a voltage is applied to a surface electrode of the piezoelectric material. Therefore, when a voltage is applied to the spacer made of the piezoelectric material, the height of the spacer changes. The dimensions of the resonator 101 are adjusted by adjusting the height of the spacer, thereby adjusting the wavelength of the detection beam that can pass through the resonator.

Optionally, in some embodiments, the optical detection device 10 may include a memory. The memory may be used to store software programs as well as various data. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

Optionally, in some embodiments, the optical detection device 10 may include a processor. The processor is a control center of the electronic equipment, is connected with various parts of the whole electronic equipment by various interfaces and lines, and executes various functions and processes data of the electronic equipment by operating or executing software programs and/or modules stored in the memory and calling the data stored in the memory, thereby carrying out the overall monitoring of the electronic equipment. A processor may include one or more processing units; preferably, the processor may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor.

Optionally, in some embodiments, the optical detection apparatus 10 or the detection system 1 may further include a light source for emitting a detection light beam when the light intensity of the detection light beam in the ambient light is lower than a preset light intensity threshold. By way of illustration and not limitation, the detection beam used herein may be an invisible infrared light, such as an infrared beam having a wavelength of 700nm to 1000 nm. When the sunshine condition is better daytime, the infrared light in the ambient light can be used as the detection light beam, and when the ambient light is weaker evening, the light source can be used for providing the detection light beam. The optical detection device 10 can collect the detection beams with different wavelengths returned by the detection object to acquire different image information about the detection object. It is noted that the detection object may include, but is not limited to, agricultural related species, such as: vegetables, melons, fruits and other crops, plant stems, leaves and the like, soil and the like. At night or when the ambient light is dark, the light source can be used for emitting detection light beams to the detection object, and the optical detection device 10 can collect the detection light beams with different wavelengths returned by the detection object. It is understood that the light source may be disposed inside or outside the optical detection device 10, or the light source may be used to form part or all of the functional device 40.

Alternatively, in some embodiments, the image information about the detection object acquired by the optical detection device 10 is transmitted to the control device 30 through the communication device 20. The control device 30 compares the image information with pre-stored image data or a pre-established image data model to acquire parameter information about the inspection object. The metric parameter information may include, but is not limited to, one or more of the following: maturity, temperature, humidity, growth (e.g., good, average, poor), insect threat (e.g., low threat level, medium threat level, high threat level) … …, and the like.

Optionally, in some embodiments, the optical detection apparatus 10 may further be configured to compare the acquired image information about the detection object with pre-stored image data or a pre-established image data model, and output parameter information about the detection object according to a comparison result, and the control apparatus 30 receives the parameter information and sends a control instruction to the function apparatus.

The image data model can be established in advance by carrying out image information acquisition, analysis, labeling and the like on a large number of samples. A large number of crops of specific varieties are used as samples for image information acquisition, and each sample correspondingly adopts a plurality of detection light beams with different wavelengths for image information acquisition. For example, if the parameter values of the maturity-related parameter information are defined as consecutive positive integers from 1 to 10 from completely immature to completely mature, it is ensured that each maturity parameter has image information of a corresponding sample by a large number of samples, and the image information at all wavelengths corresponding to each maturity is associated.

Alternatively, the image data model may be stored in a storage unit (e.g., a disk, a memory, etc.) of the control device 30. Alternatively, the image data model may be stored in a storage space of a cloud, and the control device 30 is connected to the storage space of the cloud and may be invoked and/or rewritten.

It can be understood that the penetration degree of the detection beams with different wavelengths to the same detection object may be different, and in addition, the penetration degree of the detection beams with the same wavelength to the detection objects with different materials may be different. Therefore, the above-described image information collection for a large number of samples may need to be repeated for each different variety of crop, eventually summarized into an image database, and from this modeled image data including associated image information and parameter values.

Alternatively, in some embodiments, the function device 40 may be a device capable of performing a specific function on the detection object. The function device 40 may perform some or all of the above specific functions in a single time, continuously, repeatedly with a certain frequency, randomly, or in a designated programming manner according to the control instruction of the control device 30. The function device 40 may be generally disposed at a position adjacent to the detection object, so as to perform the above-mentioned specific function for the detection object, so as to change the parameter information of the detection object. After the function device 40 is executed, the optical detection device 10 may acquire image information about the detection object again after a first preset time elapses, and then the optical detection device 10 or the control device 30 may acquire parameter information about a change of the detection object.

Optionally, the function device 40 may be an irrigator, the control device 30 may send a control instruction for starting irrigation when detecting that the humidity of the detected object is too low, and under the control instruction of the control device 30, the detected object may be irrigated, and the function device 40 may perform irrigation for a second preset time lasting once, or for a second preset time repeating multiple times, or according to a preprogrammed design.

Alternatively, the function device 40 may be a pesticide sprayer, and the control device 30 may control the function device 40 to start agricultural spraying for pest killing when pest coercion of the detected object is detected.

Alternatively, the function device 40 may be a fertilizer adder, and when the control device 30 detects that the growth condition of the detection object is poor, the control device 40 may be controlled to start fertilizer addition to supplement nutrients required for crop growth.

Alternatively, the function device 40 may be a soil turning device, and when the control device 30 detects that the soil to be detected is hardened, the soil turning device may perform soil turning to improve the soil texture.

Optionally, in some embodiments, the functional device 40 may include one or more of a lighting controller, a temperature controller, a humidity controller, an irrigation controller.

Optionally, in some embodiments, the detection system 1 may further include a gas sensor, a temperature sensor, a humidity sensor, and the like. The control device 30 may acquire sensing data of the above-described sensors through the communication device 20. The detection system 1 may also be preset with a temperature data model relating to temperature and a detection object parameter, an air pressure data model relating to air pressure and a detection object parameter, a humidity data model … … relating to humidity and a detection object parameter, and the like. It will be understood by those skilled in the art that the present application is not limited thereto.

The image data model of the present application may be combined with the other types of data models to perform parameter evaluation of the detection object to obtain better control instructions, so that the function device 40 performs the corresponding function better.

Referring to fig. 5, a flow chart of an embodiment of the detection method of the present application is shown. The detection method can be applied to the detection system 1 of the present application. The detection method comprises the following steps:

s10, establishing an image data model of the detection object;

s20, collecting detection beams with different wavelengths returned by the detection object to acquire image information;

s30, carrying out algorithm comparison on the acquired image information and the image data model to obtain a comparison result;

and S40, executing corresponding functions according to the comparison result to change the parameter information of the detection object.

Wherein, the step S10 may include:

s11, setting parameters of the detection object and the wavelength range of the detection light beam according to detection requirements, preparing samples of the detection object capable of covering all parameter value ranges in advance, and collecting the detection light beam returned by each sample under a plurality of different wavelengths in the wavelength range to acquire image information of the samples;

and S12, correlating the image information of the samples with the parameters of the detection object, and establishing an image data model with the image information of the detection object and the parameter values correlated.

Wherein, the step S20 may include:

s21, using a resonant cavity to selectively transmit a plurality of detection beams with different wavelengths returned by the detection object;

s22, converting the collected detection beams with different wavelengths into electric signals respectively using an image sensor to obtain a plurality of image information.

Wherein, the step S30 may include:

s31, comparing each image information of the detection object with the image data model to obtain the parameter value of the corresponding detection object;

and S32, calculating a parameter value weight algorithm according to the parameter values corresponding to the plurality of image information to obtain a comparison result.

Wherein, the step S40 may include:

s41, when the comparison result meets the first preset condition, executing corresponding function to the detected object, and returning to the step S10;

and S42, when the comparison result meets the second preset condition, the corresponding function is not executed, and the step S10 is returned.

Alternatively, in some embodiments, the optical detection device 10 may be used to collect detection beams of different wavelengths returned by the detection object to acquire image information.

Optionally, in some embodiments, the optical detection device 10 or the control device 30 may be configured to perform an algorithmic comparison of the acquired image information and the image data model to obtain a comparison result.

Optionally, in some embodiments, the function device 40 may be configured to perform a corresponding function according to the comparison result to change the parameter information of the detection object.

Optionally, in some embodiments, the function may be crop irrigation, the parameter is humidity, the comparison result is a comprehensive humidity value obtained by performing a weighting algorithm on the comprehensive image information, and the first preset condition may be that the comprehensive humidity of the detection object is lower than a first preset threshold, and at this time, the detection object is irrigated to increase the moisture content of the detection object. The irrigation may be performed for a single duration of time, or repeated multiple times, or according to a preprogrammed design. Alternatively, the second preset condition may be that the integrated humidity value is greater than or equal to a first preset threshold value.

Optionally, in some embodiments, the function may be pesticide spraying, the parameter is a pest threat degree, the comparison result is a pest threat degree value calculated by performing a weight algorithm on the integrated image information, and the first preset condition may be that the integrated pest threat degree value of the detection object is lower than a second preset threshold, at which time pesticide spraying is performed on the detection object to kill and eliminate pests. The above-described pesticide spraying may be performed for a single duration of time, or for a period of time that is repeated multiple times, or according to a preprogrammed schedule.

Optionally, in some embodiments, the function may be fertilizer addition, the parameter is a growth condition, the comparison result is a growth condition value obtained by performing a weighting algorithm on a plurality of pieces of image information, and the first preset condition may be that the integrated growth condition value of the detection object is lower than a third preset threshold, and at this time, fertilizer addition is performed on the detection object to promote growth thereof. The above-described fertilizer addition may be performed for a period of time of a single duration, or repeated multiple times, or according to a preprogrammed schedule.

Optionally, the function may be soil excavation, the parameter is soil looseness, the comparison result is a soil looseness value calculated by performing a weighting algorithm on the plurality of image information, the first preset condition may be that the comprehensive soil looseness value of the detection object is lower than a fourth preset threshold, and at this time, soil excavation is performed on the detection object to improve soil texture. The soil excavation described above may be performed for a period of time that is a single duration, or for a period of time that is repeated multiple times, or according to a preprogrammed schedule.

Compared with the prior art, the detection system and the detection method of the application use the Fabry-Perot resonant cavity, can continuously collect image information corresponding to light beams with different wavelengths, do not need to arrange a plurality of optical filters aiming at a plurality of different wavelengths, and have small size and low cost. In addition, the size of the resonant cavity is controlled through the voltage, automatic control can be achieved, operation is not needed, accuracy of resonant cavity size adjustment is good, and continuous multispectral filtering can be achieved. Further, by setting up multispectral image information of crops and an image data model related to parameters, detection of various parameters can be achieved, and corresponding functions can be executed according to the parameters. This application can be towards crops, and the helping hand is in the comprehensive realization of digital agriculture, wisdom agricultural.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device in the embodiment of the application can be merged, divided and deleted according to actual needs.

In the present application, the same or similar term concepts, technical solutions and/or application scenario descriptions will be generally described only in detail at the first occurrence, and when the description is repeated later, the detailed description will not be repeated in general for brevity, and when understanding the technical solutions and the like of the present application, reference may be made to the related detailed description before the description for the same or similar term concepts, technical solutions and/or application scenario descriptions and the like which are not described in detail later.

In the present application, each embodiment is described with emphasis, and reference may be made to the description of other embodiments for parts that are not described or illustrated in any embodiment.

The technical features of the technical solution of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present application should be considered as being described in the present application.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (12)

1. A detection system, comprising:

at least one optical detection device for receiving detection beams having a plurality of wavelengths from a detection object and generating a plurality of image information of the detection object corresponding to the detection beams having the plurality of wavelengths;

at least one communication device connected to the plurality of optical detection devices;

the control device is connected with the communication device and can communicate with the optical detection device through the communication device, the control device can generate a corresponding control instruction based on image information received from the optical detection device through the communication device, and the control device is used for comparing the image information of the detection object generated by the optical detection device with pre-stored image data to acquire parameter information about the detection object and sending the control instruction to the function device according to the parameter information; or: the optical detection device is also used for comparing the image information of the detection object with pre-stored image data and outputting parameter information related to the detection object according to a comparison result, and the control device receives the parameter information and sends a control instruction to the function device; and

and the function device is used for receiving the control instruction and executing a corresponding function on the detection object so as to change the parameter information of the detection object.

2. The detection system according to claim 1, wherein the optical detection device comprises:

a filter unit for selectively allowing detection beams of different wavelengths to pass therethrough;

the image unit is used for receiving the detection light beams with different wavelengths returned by the detection object and transmitted through the light filtering unit, and converting the detection light beams into corresponding electric signals so as to generate corresponding image information;

a substrate positioned below the image unit.

3. The detection system according to claim 2, wherein the filter unit comprises a resonant cavity, the resonant cavity comprises a first optical component and a second optical component which are arranged in parallel and opposite to each other, the distance between the first optical component and the second optical component is adjustable, and the size of the resonant cavity is adjusted by adjusting the distance between the first optical component and the second optical component, so that a detection beam with a wavelength corresponding to the size of the resonant cavity is transmitted through the resonant cavity.

4. The detection system according to claim 2, wherein the filter unit comprises a resonant cavity, the resonant cavity comprises a spacer layer between the first optical component and the second optical component, and the size of the resonant cavity is adjusted by adjusting the thickness of the spacer layer, so that the detection beam with the wavelength corresponding to the size of the resonant cavity is transmitted through the resonant cavity.

5. The detection system according to claim 2, wherein the filtering unit comprises a MEMS filter comprising a resonant cavity that changes size accordingly in response to a change in voltage applied thereto.

6. The detection system according to claim 2, wherein the optical detection device further comprises a light source for emitting a detection light beam when the light intensity of the detection light beam in the ambient light is below a preset light intensity threshold.

7. The inspection system of claim 1, wherein the optical inspection device further comprises at least one communication unit, the control device and the optical inspection device are separately disposed, and the communication unit is connected to and communicates with the optical inspection device and the control device via a wireless and/or wired network protocol, respectively.

8. The inspection system of claim 1, wherein the control device comprises a processor and a memory, the processor is used for processing the image information from the optical inspection device, the memory is used for storing an image database comprising pre-recorded image data, the processor performs comparison analysis on the image information and the image data of the image database to obtain a matching result, and corresponding parameter information about the inspection object is obtained according to the matching result.

9. The detection system according to claim 1, wherein the plurality of image information can be used to generate a plurality of images, and the optical detection device acquires the plurality of image information by respectively collecting detection beams of different wavelengths from the detection object at different points in time.

10. The inspection system of claim 1, wherein the communication device comprises a radio frequency transceiver unit integrated within the optical inspection device or separately disposed outside the optical inspection device; the communication device is respectively connected with the optical detection device and the control device through a wireless and/or wired network protocol and communicates with the optical detection device and the control device.

11. A detection method applied to the detection system according to claims 1 to 10, comprising:

step S10, establishing an image data model about the detection object;

step S20, the optical detection device collects the detection beams with different wavelengths returned by the detection object to obtain image information;

step S30, the control device or the optical detection device carries out algorithm comparison on the collected image information and the image data model to obtain a comparison result;

step S40, the function device executes a corresponding function according to the comparison result to change the parameter information of the detection object.

12. The detection method according to claim 11, wherein step S10 includes:

s11, setting parameters of the detection object and the wavelength range of the detection light beam according to detection requirements, preparing samples of the detection object capable of covering all parameter value ranges in advance, and collecting the detection light beam returned by each sample under a plurality of different wavelengths in the wavelength range to acquire image information of the samples;

s12, correlating the image information of a large number of samples with the parameters of the detection object, and establishing an image data model with the correlated image information and parameter values of the detection object;

step S20 includes:

s21, using a resonant cavity to selectively transmit a plurality of detection beams with different wavelengths returned by the detection object;

s22, converting the collected detection light beams with different wavelengths into electric signals by using an image sensor respectively to obtain a plurality of image information;

step S30 includes:

s31, comparing each image information of the detection object with the image data model to obtain the parameter value of the corresponding detection object;

s32, calculating a parameter value weight algorithm according to the parameter values corresponding to the image information to obtain a comparison result;

step S40 includes:

s41, when the comparison result meets the first preset condition, executing corresponding function to the detected object, and returning to the step S10;

and S42, when the comparison result meets the second preset condition, the corresponding function is not executed, and the step S10 is returned.

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