CN112198199A - Moisture detection equipment and method - Google Patents
Moisture detection equipment and method Download PDFInfo
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- CN112198199A CN112198199A CN202011112127.4A CN202011112127A CN112198199A CN 112198199 A CN112198199 A CN 112198199A CN 202011112127 A CN202011112127 A CN 202011112127A CN 112198199 A CN112198199 A CN 112198199A
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Abstract
The embodiment of the application discloses a moisture detection device and method. The technical scheme that this application embodiment provided is through placing moisture measuring electrode in the detection target that needs carry out moisture detector, capacitance sensor detects and gathers corresponding impedance information to the capacitance value of moisture measuring electrode and detection target, and according to the capacitance value that cereal corresponds under different moisture content, confirm the cereal moisture content that corresponds under the current impedance information, confirm moisture detection information and show, make things convenient for the staff to confirm cereal moisture content fast accurately, improve detection and the control efficiency to cereal moisture.
Description
Technical Field
The embodiment of the application relates to the technical field of detection, in particular to a moisture detection device and method.
Background
During transportation and storage of grains such as wheat, rice, corn, soybean and the like, the control of moisture has important significance on the integrity of the grains. The moisture content of the grains is generally detected in a laboratory, such as a drying weight measuring method, but the drying weight measuring method is more suitable for accurate measurement occasions in the laboratory due to longer measuring time.
At present, the grain moisture is judged mainly by depending on the experience of workers, but the mode is greatly influenced by personal factors and has low accuracy in grain moisture detection.
Disclosure of Invention
The embodiment of the application provides a moisture detection device and method, which are used for rapidly and accurately detecting the moisture of grains.
In a first aspect, an embodiment of the present application provides a moisture detection device, including capacitive sensor, moisture detection processing module and display module, the display module connect in moisture detection processing module, capacitive sensor's sense terminal is connected with moisture measurement electrode, capacitive sensor's data output end connect in moisture detection processing module, wherein:
the capacitance sensor is used for carrying out capacitance detection based on the moisture measuring electrode and acquiring impedance information;
the moisture detection processing module is used for reading the impedance information acquired by the capacitance sensor, determining moisture detection information according to the impedance information, and controlling the display module to display the moisture detection information.
Further, the capacitance sensor is based on an IQ modulation technique, and the capacitance sensor is configured to perform IQ separation on the impedance information to obtain a capacitance component, so that the moisture detection processing module determines moisture detection information according to the capacitance component.
Further, the moisture detection device comprises a temperature sensor, a data output end of the temperature sensor is electrically connected to the moisture detection processing module, wherein:
the temperature sensor is used for detecting the temperature of a detection target and collecting temperature detection information, and the moisture detection processing module is also used for reading the temperature detection information collected by the temperature sensor and carrying out temperature compensation on the impedance information according to the temperature detection information.
Furthermore, the moisture detection equipment further comprises a wireless communication module, the wireless communication module is connected to the moisture detection processing module, and the moisture detection processing module is in communication connection with an external terminal through the wireless communication module.
Furthermore, the moisture detection device further comprises a key input module, the key input module is connected to the moisture detection processing module, and the moisture detection processing module receives control information through the key input module and executes corresponding control actions according to the control information.
In a second aspect, an embodiment of the present application provides a moisture detection method applied to the moisture detection apparatus according to the first aspect, including:
polling and reading impedance information acquired by a capacitance sensor, wherein the impedance information is obtained by capacitance detection of the capacitance sensor based on a moisture measuring electrode, and the moisture measuring electrode is arranged at a detection target;
and determining moisture detection information corresponding to the detection target based on the impedance information, and displaying the moisture detection information.
Further, the impedance information comprises a resistance component and a capacitance component, and is stored in a register of the capacitance sensor;
the polling and reading impedance information collected by the capacitive sensor comprises:
and polling and acquiring a capacitance component obtained by IQ separation of impedance information by the capacitance sensor.
Further, the determining moisture detection information corresponding to the detection target based on the impedance information includes:
and determining moisture detection information corresponding to the detection target based on the capacitance component.
Further, after polling and reading the impedance information collected by the capacitive sensor, the method further includes:
and reading temperature detection information acquired by a temperature sensor, and performing temperature compensation on the impedance information according to the temperature detection information.
In a third aspect, an embodiment of the present application provides a moisture detection apparatus, including a capacitance detection module, a moisture detection module, and an information display module, where:
the capacitance detection module is used for polling and reading impedance information acquired by the capacitance sensor, wherein the impedance information is obtained by capacitance detection of the capacitance sensor based on a moisture measurement electrode, and the moisture measurement electrode is arranged at a detection target;
the moisture detection module is used for determining moisture detection information corresponding to the detection target based on the impedance information;
and the information display module is used for displaying the moisture detection information.
Further, the impedance information comprises a resistance component and a capacitance component, and is stored in a register of the capacitance sensor;
the capacitance detection module is specifically used for polling and acquiring a capacitance component obtained by IQ separation of impedance information by the capacitance sensor.
Further, the moisture detection module is specifically configured to determine moisture detection information corresponding to the detection target based on the capacitance component.
Furthermore, the device further comprises a temperature compensation module, which is used for reading the temperature detection information collected by the temperature sensor after the capacitance detection module polls and reads the impedance information collected by the capacitance sensor, and performing temperature compensation on the impedance information according to the temperature detection information.
In a fourth aspect, an embodiment of the present application provides a computer device, including: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the moisture detection method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the moisture detection method according to the first aspect when executed by a computer processor.
This application embodiment is through placing moisture measuring electrode in the detection target that needs carry out moisture detector, capacitive sensor detects moisture measuring electrode and detection target's capacitance value and gathers corresponding impedance information, and according to the capacitance value that cereal corresponds under different moisture content, confirm the cereal moisture content that corresponds under the current impedance information, confirm moisture detection information and show, make things convenient for the staff to confirm cereal moisture content fast accurately, improve detection and the control efficiency to cereal moisture.
Drawings
Fig. 1 is a block diagram of a moisture detection device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a temperature characteristic of a capacitive sensor according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a method for detecting moisture according to an embodiment of the present disclosure;
FIG. 4 is a flow chart of another method of moisture detection provided by an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a moisture detection device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present application.
Reference numerals: 1. a capacitive sensor; 2. a moisture detection processing module; 3. a display module; 4. a moisture measuring electrode; 5. a temperature sensor; 6. a wireless communication module; 7. a key input module; 8. and a power supply module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings.
In the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 shows a block diagram of a moisture detection apparatus provided in an embodiment of the present application, and as shown in fig. 1, the moisture detection apparatus includes a capacitive sensor 1, a moisture detection processing module 2, a display module 3, a temperature sensor 5, a wireless communication module 6, a key input module 7, and a power module 8, where the capacitive sensor 1, the display module 3, the temperature sensor 5, the wireless communication module 6, and the key input module 7 are all electrically connected to the moisture detection processing module 2.
The power module 8 provided by this embodiment is used to provide power for each electrical appliance in the moisture detection device, for example, by accessing a 5-12V power supply (a built-in battery or an external power supply), converting the 5V power supply into a 5V power supply through a 5V linear voltage regulator circuit (5V LDO), providing a stable 5V power supply, and converting the 3V power supply into a 3.3V power supply through a 3.3V linear voltage regulator circuit (3.3V LDO), providing a stable 3.3V power supply.
Specifically, the detection end of the capacitance sensor 1 is electrically connected to the moisture measurement electrode 4, the moisture measurement electrode 4 can be placed at a detection target (for example, grains such as wheat), and the capacitance sensor 1 is configured to perform capacitance detection and impedance data acquisition based on the moisture measurement electrode 4, and generate impedance information reflecting capacitance values of the moisture measurement electrode 4 and the detection target according to the impedance data.
Further, the capacitive sensor 1 provided in this embodiment is specifically a capacitive sensor based on an IQ modulation technique, and the capacitive sensor 1 is configured to test acquired impedance information, obtain a resistance component (I vector) and a capacitance component (Q vector) through IQ separation, and store the resistance component and the capacitance component in a register of the capacitive sensor 1.
Illustratively, a TX pin of the capacitive sensor 1 transmits a sine wave signal with a frequency of 125KHz, the sine wave signal is transmitted to an RX pin through a detection target, and the returned sine wave signal is processed by an amplifier and a multiplier to obtain an In-phase signal I (In-phase) vector and a Quadrature signal Q (Quadrature phase) vector, where the I vector corresponds to a resistance parameter of the detection target and the Q vector corresponds to a capacitance parameter of the detection target. The capacitance value with the separated impedance value is obtained through the IQ modulation capacitance sensor, the influence of a resistance parameter is effectively eliminated, only the change of the capacitance parameter is reserved, and the precision of capacitance type grain moisture measurement is effectively improved.
Specifically, the capacitive sensor 1 provided in this embodiment is configured to test the received impedance information (the returned sine wave signal), obtain a capacitance component through IQ separation, and store the capacitance component in a register, so that the water content detection processing module 2 reads the capacitance component and determines the water content detection information according to the capacitance component.
Further, a data output end of the temperature sensor 5 provided in this embodiment is electrically connected to the moisture detection processing module 2, and the temperature sensor 5 is configured to perform temperature detection and temperature data acquisition on a detection target or an environment where the capacitance sensor 1 is located, and generate temperature detection information reflecting the temperature of the detection target or the environment where the capacitance sensor 1 is located according to the temperature data.
The moisture detection processing module 2 provided in this embodiment is a processor unit such as a single chip, and the moisture detection processing module 2 is configured to read a capacitance component in the impedance information acquired by the capacitance sensor 1, determine a moisture content corresponding to the capacitance component in the current impedance information according to a capacitance value corresponding to the grain under different moisture contents, and generate moisture detection information reflecting the moisture content.
Further, the display module 3 provided in this embodiment adopts an OLED display screen for displaying moisture detection information and an interactive interface, and after the moisture detection processing module 2 collects a capacitance component in the impedance information, the display module 3 is controlled to display the moisture detection information in the interactive interface, for example, if the moisture content reflected by the moisture detection information is 13%, text information of "moisture content 13%" is displayed in the display module 3.
Optionally, the correspondence between the capacitance component in the impedance information and the moisture content of the grain may be recorded in the moisture detection processing module 2, the moisture content of the grain corresponding to the capacitance component in the impedance information is determined according to the correspondence, and moisture detection information reflecting the moisture content of the grain is generated.
For example, capacitance values corresponding to detection targets (for example, grains such as wheat) with different moisture contents may be detected and recorded, and capacitance values corresponding to detection targets with different moisture contents are recorded through a table, or a calculation formula between capacitance components and grain moisture contents is determined according to capacitance values corresponding to different grain moisture contents, and then a corresponding relationship between capacitance components and grain moisture contents is determined through a table or a calculation formula.
After the capacitance component reflecting the capacitance value is obtained, the moisture content corresponding to the detection target can be determined in a table look-up method or a formula calculation mode. The capacitance component may be recorded by ADC data originally output by the sensor, or may be recorded by a specific capacitance value obtained by linearizing the ADC data, which is not limited in this application.
Further, the key input module 7 is provided with a plurality of control keys electrically connected to the moisture detection processing module 2, and can send a control instruction to the moisture detection processing module 2 by pressing the control keys, and the moisture detection processing module 2 determines whether the key input module 7 is triggered according to the level state of each control key, and executes a corresponding action according to a preset processing mode (for example, calibration, start detection, and the like) corresponding to the triggered control key.
Optionally, a touch screen (a touch OLED screen) may be used as the display module 3, a control interaction button is arranged on an interaction interface of the touch screen, and a control instruction is sent to the moisture detection processing module 2 through the control interaction button.
Further, the wireless communication module 6 may be a bluetooth module, a WiFi module, a ZigBee module, etc., and the embodiment is described by taking the bluetooth module as an example. The moisture detection processing module 2 can be in communication connection with an external terminal through the wireless communication module 6, wherein the external terminal can be a mobile phone, a tablet, other moisture detection devices and the like with corresponding wireless communication module 6, for example, the mobile phone, the tablet and the moisture detection devices are in communication connection, so that the mobile phone can perform parameter configuration and display of measurement results (moisture detection information) on the moisture detection devices, and a plurality of moisture detection devices can be wirelessly connected and networked to form a mesh network, thereby realizing large-scale online detection of grain moisture.
Further, the moisture detection processing module 2 provides an SPI interface and I2C interface, UART interface and I/O interface, wherein the temperature sensor 5 passes through I2C interface communication connects in moisture detection processing module 2, and capacitive sensor 1 and display module 3 pass through SPI interface communication and connect in moisture detection processing module 2, and wireless communication module 6 passes through UART interface communication and connects in moisture detection processing module 2, and button input module 7 passes through IO interface communication and connects in moisture detection processing module 2.
Further, the moisture detection processing module 2 provided in this embodiment is further configured to read temperature detection information collected by the temperature sensor 5, and perform temperature compensation on the impedance information according to the temperature detection information.
It can be understood that, in different temperature environments, the measurement data of the IQ modulation capacitive sensor has certain regularity under the influence of temperature, and only one component of the capacitive sensor 1 is influenced by temperature, so that the influence of environmental factors on the capacitive sensor 1 can be eliminated through temperature compensation, and the measurement result is close to the true value.
Specifically, the variation of the capacitance component is determined according to the temperature characteristics of the capacitance sensor 1 in different temperature environments, and the temperature compensation is performed on the capacitance component according to the variation. For example, fig. 2 is a schematic diagram of a temperature characteristic of a capacitive sensor 1 provided in an embodiment of the present application, where capacitance measurement is performed on a detection object (for example, wheat with the same moisture content) of the capacitive sensor 1 at different temperatures based on the same capacitance value, so as to obtain impedance information of the same detection object at different temperatures, the impedance information is subjected to IQ separation to obtain a resistance component (I data) and a capacitance component (Q data), values (original ADC values) of the I data (lower line segment in the figure) and the Q data (upper line segment in the figure) separated from the impedance information at different temperatures are recorded, and temperature compensation can be performed on the capacitance component according to the temperature characteristic, so as to obtain a capacitance component closer to a true value.
Through carrying out temperature compensation to the electric capacity component, make the electric capacity component more be close to the capacitance value of detection target, improve the electric capacity detection precision to the detection target, and then improve the precision to cereal moisture content detection.
Above-mentioned, through placing moisture measuring electrode 4 in the detection target that needs carry out moisture detector, capacitive sensor 1 detects and gathers corresponding impedance information to the capacitance value of moisture measuring electrode 4 and detection target, and according to the capacitance value that cereal corresponds under different moisture content, confirm the cereal moisture content that corresponds under the current impedance information, confirm moisture detection information and show, make things convenient for the staff to confirm cereal moisture content fast accurately, improve detection and the control efficiency to cereal moisture. Meanwhile, the IQ modulation capacitance sensor is used for testing impedance information, a capacitance component is obtained through IQ separation, the influence of resistance factors is removed, temperature compensation is carried out on the capacitance component based on the temperature characteristic of the capacitance sensor 1, the influence of the ambient temperature on measurement is reduced, the capacitance component closer to the real capacitance value is obtained, the actual capacitance variation of grains is deduced, the precision of capacitance grain moisture measurement is improved, the grain moisture is rapidly detected, the influence of the temperature, the variety, the compactness and the like on grain moisture detection is effectively reduced, the measurement result is closer to the real value, the scheme that the capacitance sensor 1 and the temperature sensor 5 are combined with the moisture detection processing module 2 is adopted, the influence of the ambient temperature on measurement is reduced, the size of measurement equipment is reduced, and the grain moisture can be conveniently detected at any time and any place. And moisture detection processing module 2 accessible wireless communication module 6 communicates and the network deployment with external terminal, and moisture detection equipment's use is more nimble.
Fig. 3 is a flowchart of a moisture detection method provided in an embodiment of the present application, which is applied to the moisture detection device provided in the above embodiment and can be executed by a moisture detection device, which can be implemented by hardware and/or software and integrated in a computer device (e.g., a moisture detection processing module).
The following description will be given taking as an example a method of performing moisture detection by a moisture detection device. Referring to fig. 3, the moisture detection method includes:
s101: and polling and reading impedance information collected by the capacitive sensor.
The impedance information is obtained by capacitance detection of a capacitance sensor based on a moisture measuring electrode, and the moisture measuring electrode is arranged at a detection target. For example, the moisture measuring electrode and the common terminal (ground terminal) are placed in opposite sides of the detection target, and the capacitance sensor may measure capacitance values of the moisture measuring electrode and the detection target based on the moisture measuring electrode and collect a capacitance detection signal.
Illustratively, the capacitance sensor detects the capacitance of the grain through a moisture measuring electrode and acquires corresponding impedance information, and the moisture detection processing module polls the working state of the capacitance sensor at regular time and acquires the impedance information acquired by the capacitance sensor at regular time or when the capacitance sensor acquires new impedance information.
The impedance information may be ADC data originally output by the capacitance sensor, or may be a specific capacitance value obtained by linearizing the ADC data, which is not limited in this application.
S102: and determining moisture detection information corresponding to the detection target based on the impedance information.
Illustratively, the corresponding relation between the impedance information and the moisture content of the grains is recorded in the moisture detection processing module in advance. After the impedance information is received, determining the moisture content of the grain corresponding to the impedance information according to the corresponding relation, and generating moisture detection information reflecting the moisture content of the grain.
S103: and displaying the moisture detection information.
For example, after the moisture detection information corresponding to the current detection target is determined, the display module is controlled to display the moisture detection information. For example, when the moisture content reflected by the moisture detection information is 13%, text information of "moisture content 13%" is displayed in the display module.
Above-mentioned, through placing moisture measuring electrode in the detection target that needs carry out moisture detector, capacitive sensor detects moisture measuring electrode and detection target's capacitance value and gathers corresponding impedance information, and according to the capacitance value that cereal corresponds under different moisture content, confirms the cereal moisture content that corresponds under the current impedance information, confirms moisture detection information and shows, makes things convenient for the staff to confirm cereal moisture content fast accurately, improves detection and the control efficiency to cereal moisture.
On the basis of the foregoing embodiments, fig. 4 is a flowchart of another moisture detection method provided in an embodiment of the present application, which is an embodiment of the foregoing moisture detection method. Referring to fig. 4, the moisture detection method includes:
s201: and polling and acquiring a capacitance component obtained by IQ separation of impedance information by the capacitance sensor.
Wherein the impedance information comprises a resistance component and a capacitance component and is stored in a register of the capacitive sensor.
Specifically, the capacitive sensor provided in this embodiment is a capacitive sensor based on an IQ modulation technique, and after capacitance detection is performed on the IQ modulation capacitive sensor based on the moisture detection electrode to obtain impedance information, IQ separation is performed on the impedance information to obtain a resistance component and a capacitance component, that is, the impedance information includes the separated resistance component and capacitance component. Further, after the capacitance sensor separates the resistance component and the capacitance component, the resistance component and the capacitance component are stored in an I register and a Q register.
Illustratively, the moisture detection processing module is in communication connection with the capacitive sensor through the SPI interface, and the moisture detection processing module polls the data update state of the capacitive sensor at regular time and acquires the capacitance component stored in the Q register when the impedance information is updated.
In one possible embodiment, the polling and acquiring the capacitance component obtained by IQ separating impedance information by the capacitance sensor includes: and responding to the moisture detection control instruction, polling and acquiring a capacitance component obtained by IQ separation of impedance information by the capacitance sensor.
The moisture detection control instruction is sent out by pressing the key input module or touching the display module, or can be sent out by an external terminal such as a mobile phone through a wireless communication module.
S202: and reading temperature detection information acquired by a temperature sensor, and performing temperature compensation on the impedance information according to the temperature detection information.
In this embodiment, the temperature measuring probe of the temperature sensor is disposed at a position close to the moisture measuring electrode or the capacitance sensor of the target device, and measures the temperature of the environment where the moisture measuring electrode or the capacitance sensor is located and outputs corresponding temperature detection information. Further, the moisture detection module passes through I2And the C interface is in communication connection with the temperature sensor.
Specifically, after obtaining the capacitance component, the moisture detection module passes through I2The C interface acquires temperature detection information acquired by the temperature sensor, and performs temperature compensation on impedance information according to the current temperature detection information and the temperature characteristic of the IQ-modulated capacitance sensor, and more specifically, this embodiment performs temperature compensation on the acquired capacitance component.
For example, in combination with the temperature characteristic of the capacitive sensor shown in fig. 2, the current temperature is determined according to the temperature detection information, the offset of the capacitive component of the current temperature with respect to the reference temperature is determined according to the temperature characteristic of the capacitive sensor, and the capacitive component is subjected to temperature compensation according to the offset, so that the capacitive component closer to the real condition is obtained.
S203: and determining moisture detection information corresponding to the detection target based on the capacitance component.
Specifically, after the temperature compensation is performed on the capacitance component, the moisture detection information corresponding to the detection target is determined based on the capacitance component. Optionally, the capacitance component may be directly used as moisture detection information, that is, the capacitance component may be directly output as moisture detection information after the capacitance component is determined, where the capacitance component may be ADC data originally output by the capacitance sensor, or may be a specific capacitance value obtained by linearizing the ADC data, and the application is not limited thereto.
Further, after the capacitance component corresponding to the detection target at present is determined, the grain moisture content corresponding to the current capacitance component is determined according to the corresponding relation between the capacitance component and the grain moisture content, and moisture detection information reflecting the grain moisture content is generated.
In one possible embodiment, the capacitance values corresponding to different types of grains (wheat, rice, corn, soybean, etc.) at different moisture contents can be detected and recorded in advance. For example, the capacitance values corresponding to the detection target at different moisture contents are recorded through a table, or a calculation formula between the capacitance component and the moisture content of the grain is determined according to the capacitance values corresponding to the moisture contents of different grains, and then the corresponding relation between the capacitance component and the moisture content of the grain is determined through the table or the calculation formula.
Before moisture detection information corresponding to the detection target is determined based on the capacitance component, the corresponding type of grain is determined through touch operation in a display module or pressing operation of a key input module, and then the corresponding relation (recorded through a table or a calculation formula) between the corresponding capacitance component and the moisture content of the grain is determined. In addition, the grain type selection operation sent by an external terminal can be received through the wireless communication module, and the corresponding relation between the corresponding capacitance component and the grain moisture content is determined according to the grain type selection operation.
And after the capacitance component reflecting the capacitance value is obtained, determining the moisture content corresponding to the detection target by a table look-up method or a formula calculation mode based on the corresponding relation between the determined capacitance component and the moisture content of the grains.
S204: and displaying the moisture detection information.
For example, after the moisture detection information corresponding to the current detection target is determined, the display module is controlled to display the moisture detection information.
Further, after the moisture detection information corresponding to the detection target is determined, the moisture detection information is sent to an external terminal (a mobile phone, a tablet, a computer) which is in communication connection with each other through a wireless communication module, so that the external terminal displays and records the moisture detection information.
Above-mentioned, through placing moisture measuring electrode in the detection target that needs carry out moisture detector, capacitive sensor detects moisture measuring electrode and detection target's capacitance value and gathers corresponding impedance information, and according to the capacitance value that cereal corresponds under different moisture content, confirms the cereal moisture content that corresponds under the current impedance information, confirms moisture detection information and shows, makes things convenient for the staff to confirm cereal moisture content fast accurately, improves detection and the control efficiency to cereal moisture. Meanwhile, the impedance information is tested by using an IQ modulation capacitance sensor, a capacitance component is obtained through IQ separation, the influence of resistance factors is removed, temperature compensation is carried out on the capacitance component based on the temperature characteristic of the capacitance sensor, the influence of the ambient temperature on measurement is reduced, the capacitance component closer to the real capacitance value is obtained, the actual capacitance variation of the grain is deduced, the precision of capacitance grain moisture measurement is improved, the grain moisture is rapidly detected, the influence of the temperature, the variety, the compactness and the like on the grain moisture detection is effectively reduced, the measurement result is closer to the real value, the scheme that the capacitance sensor and the temperature sensor are combined with a moisture detection processing module is adopted, the influence of the ambient temperature on the measurement is reduced, the volume of measurement equipment is also reduced, and the grain moisture can be conveniently detected at any time and any place. And moisture detection processing module accessible wireless communication module communicates and the network deployment with external terminal, and moisture detection equipment's use is more nimble.
Fig. 5 is a schematic structural diagram of a moisture detection device according to an embodiment of the present application. Referring to fig. 5, the moisture detection apparatus includes a capacitance detection module 51, a moisture detection module 52, and an information display module 53.
The capacitance detection module 51 is configured to poll and read impedance information acquired by a capacitance sensor, where the impedance information is obtained by performing capacitance detection on the capacitance sensor based on a moisture measurement electrode, and the moisture measurement electrode is disposed at a detection target; a moisture detection module 52, configured to determine moisture detection information corresponding to the detection target based on the impedance information; and an information display module 53, configured to display the moisture detection information.
Above-mentioned, through placing moisture measuring electrode in the detection target that needs carry out moisture detector, capacitive sensor detects moisture measuring electrode and detection target's capacitance value and gathers corresponding impedance information, and according to the capacitance value that cereal corresponds under different moisture content, confirms the cereal moisture content that corresponds under the current impedance information, confirms moisture detection information and shows, makes things convenient for the staff to confirm cereal moisture content fast accurately, improves detection and the control efficiency to cereal moisture.
In one possible embodiment, the impedance information includes a resistance component and a capacitance component, and is stored in a register of the capacitive sensor;
the capacitance detection module 51 is specifically configured to poll and acquire a capacitance component obtained by performing IQ separation on impedance information by a capacitance sensor.
In one possible embodiment, the moisture detection module 52 is specifically configured to determine moisture detection information corresponding to the detection target based on the capacitance component.
In a possible embodiment, the apparatus further includes a temperature compensation module, configured to, after the capacitance detection module 51 polls and reads the impedance information collected by the capacitance sensor, read temperature detection information collected by the temperature sensor, and perform temperature compensation on the impedance information according to the temperature detection information.
The embodiment of the application also provides computer equipment which can be integrated with the moisture detection device provided by the embodiment of the application. Fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present application. Referring to fig. 6, the computer apparatus includes: an input device 63, an output device 64, a memory 62, and one or more processors 61; the memory 62 for storing one or more programs; when executed by the one or more processors 61, cause the one or more processors 61 to implement the moisture detection method as provided in the embodiments above. Wherein the input device 63, the output device 64, the memory 62 and the processor 61 may be connected by a bus or other means, as exemplified by the bus connection in fig. 6.
The memory 62, as a storage medium readable by a computing device, can be used for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the moisture detection method described in any embodiment of the present application (for example, the capacitance detection module 51, the moisture detection module 52, and the information display module 53 in the moisture detection apparatus). The memory 62 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 for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 62 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 non-volatile solid state storage device. In some examples, the memory 62 may further include memory located remotely from the processor 61, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 63 is operable to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 64 may include a display device such as a display screen.
The processor 61 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 62, that is, implements the above-described moisture detection method.
The moisture detection device, the equipment and the computer provided by the above can be used for executing the moisture detection method provided by any of the above embodiments, and have corresponding functions and beneficial effects.
Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the moisture detection method provided in the above embodiments, the moisture detection method including: polling and reading impedance information acquired by a capacitance sensor, wherein the impedance information is obtained by capacitance detection of the capacitance sensor based on a moisture measuring electrode, and the moisture measuring electrode is arranged at a detection target; and determining moisture detection information corresponding to the detection target based on the impedance information, and displaying the moisture detection information.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the moisture detection method described above, and may also perform related operations in the moisture detection method provided in any embodiments of the present application.
The moisture detection device, the apparatus and the storage medium provided in the above embodiments may perform the moisture detection method provided in any embodiments of the present application, and the technical details not described in the above embodiments may be referred to the moisture detection method provided in any embodiments of the present application.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. The utility model provides a moisture check out test set, its characterized in that, includes capacitive sensor, moisture detection processing module and display module, display module connect in moisture detection processing module, capacitive sensor's sense terminal is connected with moisture measurement electrode, capacitive sensor's data output end connect in moisture detection processing module, wherein:
the capacitance sensor is used for carrying out capacitance detection based on the moisture measuring electrode and acquiring impedance information;
the moisture detection processing module is used for reading the impedance information acquired by the capacitance sensor, determining moisture detection information according to the impedance information, and controlling the display module to display the moisture detection information.
2. The moisture detection device according to claim 1, wherein the capacitance sensor is an IQ modulation technology-based capacitance sensor, and the capacitance sensor is configured to perform IQ separation on the impedance information to obtain a capacitance component, so that the moisture detection processing module determines moisture detection information according to the capacitance component.
3. The moisture detection apparatus according to claim 1, characterized in that the moisture detection apparatus comprises a temperature sensor, a data output of which is electrically connected to the moisture detection processing module, wherein:
the temperature sensor is used for detecting the temperature of a detection target and collecting temperature detection information, and the moisture detection processing module is also used for reading the temperature detection information collected by the temperature sensor and carrying out temperature compensation on the impedance information according to the temperature detection information.
4. The moisture detection device according to claim 1, further comprising a wireless communication module connected to the moisture detection processing module, wherein the moisture detection processing module is in communication connection with an external terminal through the wireless communication module.
5. The moisture detection device according to claim 1, further comprising a key input module, wherein the key input module is connected to the moisture detection processing module, and the moisture detection processing module receives control information through the key input module and executes a corresponding control action according to the control information.
6. A moisture detection method applied to the moisture detection apparatus according to any one of claims 1 to 5, comprising:
polling and reading impedance information acquired by a capacitance sensor, wherein the impedance information is obtained by capacitance detection of the capacitance sensor based on a moisture measuring electrode, and the moisture measuring electrode is arranged at a detection target;
and determining moisture detection information corresponding to the detection target based on the impedance information, and displaying the moisture detection information.
7. The moisture detection method according to claim 6, wherein the impedance information includes a resistance component and a capacitance component, and is stored in a register of the capacitance sensor;
the polling and reading impedance information collected by the capacitive sensor comprises:
and polling and acquiring a capacitance component obtained by IQ separation of impedance information by the capacitance sensor.
8. The moisture detection method according to claim 7, wherein the determining moisture detection information corresponding to the detection target based on the impedance information includes:
and determining moisture detection information corresponding to the detection target based on the capacitance component.
9. The moisture detection method of claim 6, further comprising, after polling and reading impedance information collected by the capacitive sensor:
and reading temperature detection information acquired by a temperature sensor, and performing temperature compensation on the impedance information according to the temperature detection information.
10. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the moisture detection apparatus and method of any of claims 6-9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343336A (en) * | 2022-07-18 | 2022-11-15 | 佛冈明阳机械有限公司 | Method and device for measuring moisture of grains, moisture meter and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343336A (en) * | 2022-07-18 | 2022-11-15 | 佛冈明阳机械有限公司 | Method and device for measuring moisture of grains, moisture meter and storage medium |
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