CN112697741A - Moisture detection method for boxed tobacco leaves - Google Patents
Moisture detection method for boxed tobacco leaves Download PDFInfo
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Abstract
The invention discloses a moisture detection method for boxed tobacco leaves, which comprises the following steps: conveying the cigarette packages to be tested on a transmission mechanism; in the process of transmitting the box-packed cigarette packets to be detected, respectively utilizing a near-infrared light moisture detection assembly and a microwave moisture detection assembly to detect moisture of the box-packed cigarette packets to be detected so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result; and obtaining a moisture detection result of the cigarette packet to be detected in the case according to the near infrared light moisture detection result and the microwave moisture detection result. According to the moisture detection method for the boxed tobacco leaves, provided by the invention, the moisture condition of the boxed tobacco leaves can be conveniently detected by adopting the near infrared light moisture detection component and the microwave moisture detection component, the detection of the tobacco leaf quality in the tobacco shred production link in the cigarette manufacturing process can be met, the full-line automation of modern cigarette processing enterprises can be met, and the manual use is reduced.
Description
Technical Field
The invention relates to the technical field of cigarette processing quality, in particular to a moisture detection method for case-packed tobacco leaves.
Background
With the rapid development of society, the life rhythm of people also changes greatly, and more smokers can appear in order to relieve the life pressure brought by high-intensity work. The types of cigarettes in the existing market are more and more, and with the appearance of various types of cigarettes, various tobacco companies adopt sophisticated technologies to improve the preparation technology of the cigarettes in order to meet the requirements of users on different types of cigarettes, and the quality of the tobacco has great influence on the taste of the cigarettes.
In the process of changing in four seasons, namely spring, summer, autumn and winter, tobacco leaves are easy to mildew due to large changes of temperature and humidity. At present, in order to prevent the tobacco leaves from mildewing, the moisture content of the boxed tobacco leaves needs to be detected. At present, moisture of boxed tobacco leaves is mainly detected by manual sampling, the moisture condition of the boxed tobacco leaves cannot be completely controlled, and the requirement of dry matter feeding in the future cannot be met.
Therefore, a method for detecting moisture in box-packed tobacco leaves is needed.
Disclosure of Invention
The invention aims to provide a method for detecting moisture in boxed tobacco leaves, which aims to solve the problems in the prior art and can conveniently detect the moisture condition of the boxed tobacco leaves.
The invention provides a moisture detection method for boxed tobacco leaves, which comprises the following steps:
conveying the cigarette packages to be tested on a transmission mechanism;
in the process of transmitting the box-packed cigarette packets to be detected, respectively utilizing a near-infrared light moisture detection assembly and a microwave moisture detection assembly to detect moisture of the box-packed cigarette packets to be detected so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result;
and obtaining a moisture detection result of the cigarette packet to be detected in the case according to the near infrared light moisture detection result and the microwave moisture detection result.
The method for detecting moisture in boxed tobacco leaves as described above, wherein preferably, in the process of transmitting the boxed tobacco packets to be detected, the moisture detection is performed on the boxed tobacco packets to be detected by using the near-infrared light moisture detection assembly and the microwave moisture detection assembly respectively, so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result, and specifically includes:
carrying out moisture detection on the packaged tobacco packages to be detected by utilizing the near-infrared light moisture detection assembly to obtain a near-infrared light moisture detection result;
and carrying out moisture detection on the cigarette packet to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result.
The method for detecting moisture in boxed tobacco leaves as described above, wherein preferably, in the process of transporting the boxed tobacco bale to be detected, the method performs moisture detection on the boxed tobacco bale to be detected by using a near-infrared light moisture detection component and a microwave moisture detection component respectively to obtain a near-infrared light moisture detection result and a microwave moisture detection result, further comprising:
and establishing a connection relation between the near infrared light moisture detection assembly and the microwave moisture detection assembly so as to perform cross processing on a moisture detection result obtained based on the near infrared light moisture detection assembly and a detection result obtained based on the microwave moisture detection assembly.
The method for detecting moisture in boxed tobacco leaves as described above, preferably, the detecting moisture in boxed tobacco leaves by using the near-infrared moisture detecting component to obtain a near-infrared moisture detection result specifically includes:
performing moisture detection on the cigarette packet to be detected by using a first near-infrared light moisture detector arranged at the upper part of the transmission mechanism to obtain a first near-infrared light moisture detection result, wherein the lowest position of the first near-infrared light moisture detector is higher than the highest position of the cigarette packet to be detected on the transmission mechanism;
carrying out moisture detection on the packaged tobacco packages to be detected by using a second near-infrared light moisture detector arranged at the lower part of the transmission mechanism so as to obtain a second near-infrared light moisture detection result;
and obtaining the near-infrared light moisture detection result according to the first near-infrared light moisture detection result and the second near-infrared light moisture detection result.
The method for detecting moisture in boxed tobacco leaves as described above, wherein preferably, the detecting moisture in the boxed tobacco leaf to be detected by using the microwave moisture detecting component to obtain a microwave moisture detecting result includes:
generating a microwave signal by using a microwave generator;
transmitting microwave signals to the packaged tobacco bale to be tested through a microwave output probe and a microwave sensing antenna;
receiving microwave signals containing detected information returned from the cigarette packages to be detected through the microwave sensing antenna and the microwave receiving probe;
and extracting the detected information of the returned microwave signals by using a microwave data processing unit, converting the returned microwave signals into current signals, sampling and processing the current signals to obtain moisture measured values at different positions of the box-packed cigarette packet to be detected, and calculating an average value of the moisture measured values at the different positions to obtain a microwave moisture detection result.
The method for detecting moisture in boxed tobacco leaves as described above, preferably, the method for detecting moisture in boxed tobacco leaves to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result further includes:
controlling the microwave moisture detection assembly to transmit a microwave signal by using an electromagnetic valve connected with the microwave moisture detection assembly;
and controlling the on-off of the electromagnetic valve by using a controller connected with the electromagnetic valve.
The method for detecting moisture in boxed tobacco leaves as described above, preferably, the detecting moisture in the boxed tobacco leaves to be detected by using the microwave moisture detecting assembly to obtain a microwave moisture detecting result specifically includes:
performing moisture detection on the packaged tobacco packet to be detected by using a first microwave moisture detector arranged on one side of the transmission mechanism to obtain a first microwave moisture detection result;
performing moisture detection on the packaged tobacco packages to be detected by using a second microwave moisture detector arranged on the other side of the transmission mechanism to obtain a second microwave moisture detection result;
and obtaining the microwave moisture detection result according to the first microwave moisture detection result and the second microwave moisture detection result.
In the method for detecting moisture in boxed tobacco leaves, preferably, the first microwave moisture detector and the second microwave moisture detector are symmetrically arranged at two sides of the transmission mechanism, and a connecting line between the first microwave moisture detector and the second microwave moisture detector is perpendicular to a moving direction of the boxed tobacco to be detected on the transmission mechanism.
The method for detecting moisture in boxed tobacco leaves as described above, preferably, the method for detecting moisture in boxed tobacco leaves to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result further includes:
and the first microwave moisture detector and the second microwave moisture detector are respectively provided with an external control photoelectric switch so as to timely close the first microwave moisture detector and the second microwave moisture detector in emergency.
The method for detecting moisture in boxed tobacco leaves as described above, wherein preferably, the obtaining of the moisture detection result of the boxed tobacco bale to be detected according to the near-infrared light moisture detection result and the microwave moisture detection result specifically includes:
judging whether the near infrared light moisture detection result and the microwave moisture detection result are abnormal or not based on a preset moisture threshold range;
under the condition that the near-infrared light moisture detection result and/or the microwave moisture detection result are not abnormal, calibrating the near-infrared light moisture detection assembly and/or the microwave moisture detection assembly with the abnormality;
and under the condition that the near infrared light moisture detection result and the microwave moisture detection result are not abnormal, calculating an average value or carrying out weighted summation on the near infrared light moisture detection result and the microwave moisture detection result to obtain a moisture detection result of the box-packed cigarette packet to be detected.
The invention provides a moisture detection method for boxed tobacco leaves, which adopts a near-infrared light moisture detection component and a microwave moisture detection component for detection, can conveniently detect the moisture condition of the boxed tobacco leaves, can meet the detection of the tobacco leaf quality in the tobacco shred production link of cigarette manufacturing, meets the full-line automation of modern cigarette processing enterprises, and reduces the manual use.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a flow chart of an embodiment of a method for detecting moisture in boxed tobacco leaves according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the boxed tobacco leaf moisture detection device provided by the invention in a direction perpendicular to a movement direction of a tobacco bale to be detected.
Reference numerals
1-to-be-tested case-packed cigarette packet 2-transmission mechanism
3-first near infrared moisture detector 4-second near infrared moisture detector
5-first microwave moisture detector 6-second microwave moisture detector
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1, an embodiment of the present invention provides a method for detecting moisture in boxed tobacco, which is implemented based on a device for detecting moisture in boxed tobacco, and as shown in fig. 2, the device for detecting moisture in boxed tobacco includes: the device comprises a transmission mechanism 2, a near infrared light moisture detection assembly, a microwave moisture detection assembly and an external control photoelectric switch arranged on the microwave moisture detection assembly, wherein the cigarette packet 1 to be detected packaged is transmitted on the transmission mechanism 2, and the near infrared light moisture detection assembly is connected with the microwave moisture detection assembly.
As shown in fig. 1, in an actual implementation process, the method for detecting moisture in boxed tobacco specifically includes the following steps:
and step S1, the cigarette packets packaged in the box to be tested are transmitted on the transmission mechanism 2.
And step S2, in the process of transmitting the case-packed cigarette packets to be detected, respectively utilizing the near infrared light moisture detection assembly and the microwave moisture detection assembly to detect moisture of the case-packed cigarette packets 1 to be detected so as to obtain a near infrared light moisture detection result and a microwave moisture detection result.
After boxed tobacco leaves enter an area of a workshop, when the boxed tobacco leaf 1 to be detected (the tobacco leaves are filled in the boxed tobacco leaf 1 to be detected) passes through the boxed tobacco leaf moisture detection device, the near infrared light moisture detection component and the microwave moisture detection component start to work, and the moisture condition of the boxed tobacco leaves can be quickly detected.
Oxygen-hydrogen bonds in water and carbon-hydrogen bonds in organic matter absorb near infrared light of a specific wavelength. At a particular wavelength, the energy of the reflected near-infrared light is inversely proportional to the number of molecules it contains that absorb the near-infrared light. The near infrared moisture meter analyzes the near infrared light energy change of a certain specific wavelength according to the principle that the wavelength of near infrared light can be absorbed by water molecules, and converts the near infrared light energy change into an electric signal through a specific light energy detector to calculate the moisture content of materials. However, the near infrared light detection technology can only detect the moisture on the outer surface of the boxed tobacco leaves, but cannot detect the moisture content inside the boxed tobacco leaves.
Microwaves are electromagnetic waves that are very sensitive to water molecules in a specific frequency range, and when microwaves pass through a material containing water molecules, the water molecules, due to their polarity, absorb energy in the electromagnetic field. While the various spectral characteristics of the energy absorbed by the water molecules remain linear with the water molecule content. The microwave moisture meter can obtain the water content in the measured medium by measuring the linear relation between the spectral characteristics and water molecules and adding a data model and a special algorithm. Microwaves can penetrate through the non-metallic material in a space radiation mode, so that the internal characteristics of the material can be comprehensively known by using a microwave method, the measurement result is not influenced by the surface structure and color of the material, and the measurement precision is high, so that the density and humidity of the material can be quickly, accurately, real-timely and nondestructively measured; meanwhile, the microwave power used for measurement is extremely low, so that the device does not cause pollution and harm to a working site, a measured material and an operator.
In the invention, the near-infrared moisture detection assembly and the microwave moisture detection assembly are adopted to detect moisture, the near-infrared moisture detection assembly is used for roughly detecting moisture, and the microwave moisture detection assembly is used for finely measuring moisture, so that the advantages of the near-infrared moisture detection assembly and the microwave moisture detection assembly can be exerted simultaneously.
In an embodiment of the method for detecting moisture in boxed tobacco leaves, the step S2 may specifically include:
and step S21, performing moisture detection on the cigarette packet 1 to be detected by using the near infrared light moisture detection assembly to obtain a near infrared light moisture detection result.
Considering that the cigarette packet 1 to be detected is heavy (about 200 kg), the density inside the cigarette packet 1 to be detected is different, and the density is higher as the cigarette packet 1 to be detected approaches the center of the cigarette packet 1 to be detected, and the detection data obtained by detecting only by using one near-infrared moisture detector is not accurate enough, so that the accuracy of the detection result can be improved by using two near-infrared moisture detectors for detection.
In an embodiment of the method for detecting moisture in boxed tobacco leaves, the step S21 may specifically include:
step S211, performing moisture detection on the cigarette packet 1 to be detected by using a first near-infrared light moisture detector 3 arranged at the upper part of the transmission mechanism 2 to obtain a first near-infrared light moisture detection result, wherein the lowest position of the first near-infrared light moisture detector 3 is higher than the highest position of the cigarette packet 1 to be detected on the transmission mechanism 2.
And S212, performing moisture detection on the cigarette packets 1 to be detected by using a second near-infrared moisture detector 4 arranged at the lower part of the transmission mechanism 2 to obtain a second near-infrared moisture detection result.
The specific positions and relative positional relationship of the first near-infrared moisture detector 3 and the second near-infrared moisture detector 4 are not particularly limited in the present invention. In addition, the number of the near-infrared moisture detectors included in the near-infrared moisture detection module is not particularly limited in the present invention.
And step S213, obtaining the near infrared light moisture detection result according to the first near infrared light moisture detection result and the second near infrared light moisture detection result.
In a specific implementation, the near-infrared moisture detection result may be obtained by averaging or weighting and summing the first near-infrared moisture detection result and the second near-infrared moisture detection result.
And step S22, performing moisture detection on the cigarette packet 1 to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result.
In an embodiment of the method for detecting moisture in boxed tobacco leaves, the step S22 may specifically include:
and step S221, generating a microwave signal by using a microwave generator.
And step S222, transmitting microwave signals to the cigarette packet 1 to be tested in the box through the microwave output probe and the microwave sensing antenna.
And step S223, receiving the microwave signal containing the detected information returned from the cigarette packet 1 to be detected through the microwave sensing antenna and the microwave receiving probe.
Wherein, the microwave receiving probe and/or the microwave output probe are made of high-density organic molecular glass. Because the difference between the workshop environment and the laboratory environment is larger, compared with the organic glass adopted by the traditional microwave receiving probe and the traditional microwave output probe, the microwave receiving probe and the microwave output probe which are made of high-density organic molecular glass are adopted, and the influence of dust and vibration of a workshop on the microwave moisture detection process can be avoided.
And S224, extracting the detected information of the returned microwave signals by using the microwave data processing unit, converting the returned microwave signals into current signals, sampling and processing the current signals to obtain moisture measured values at different positions of the box-packed cigarette packet to be detected, and calculating an average value of the moisture measured values at the different positions to obtain a microwave moisture detection result.
Wherein, the microwave data processing unit is connected with the microwave receiving probe.
Further, in an embodiment of the method for detecting moisture in boxed tobacco of the present invention, the step S22 may further include:
step S225, controlling the microwave moisture detection assembly to emit microwave signals by using an electromagnetic valve connected with the microwave moisture detection assembly;
and step S226, controlling the on-off of the electromagnetic valve by using a controller connected with the electromagnetic valve.
Considering that the cigarette packet 1 to be detected is heavy (about 200 kg), the density inside the cigarette packet 1 to be detected is different, and the closer to the center of the cigarette packet 1 to be detected, the higher the density is, the less accurate the detection data obtained by detecting only one microwave moisture detector is, so that the invention adopts two first microwave moisture detectors for detection, thereby improving the accuracy of the detection result.
In a specific implementation manner, in an embodiment of the method for detecting moisture in boxed tobacco leaves, the step S22 may specifically include:
and step S22-1, performing moisture detection on the cigarette packet 1 to be detected by using the first microwave moisture detector 5 arranged on one side of the transmission mechanism 2 to obtain a first microwave moisture detection result.
And step S22-2, performing moisture detection on the cigarette packets to be detected by using a second microwave moisture detector 6 arranged on the other side of the transmission mechanism 2 to obtain a second microwave moisture detection result.
The first microwave moisture detector 5 and the second microwave moisture detector 6 are symmetrically arranged on two sides of the transmission mechanism 2, and a connecting line between the first microwave moisture detector 5 and the second microwave moisture detector 6 is perpendicular to the moving direction of the cigarette packet 1 packaged in the box to be detected on the transmission mechanism 2.
The specific positions and relative positional relationship of the first microwave moisture detector 5 and the second microwave moisture detector 6 are not particularly limited in the present invention. In addition, the number of microwave moisture detectors included in the microwave moisture detecting assembly is not particularly limited in the present invention.
And S22-3, obtaining the microwave moisture detection result according to the first microwave moisture detection result and the second microwave moisture detection result.
In a specific implementation, the microwave moisture detection result may be obtained by averaging or weighting and summing the first microwave moisture detection result and the second microwave moisture detection result.
Further, in an embodiment of the method for detecting moisture in boxed tobacco of the present invention, the step S22 may further include:
and step S22-4, respectively setting an external control photoelectric switch on each of the first microwave moisture detector 5 and the second microwave moisture detector 6, so as to timely turn off the first microwave moisture detector 5 and the second microwave moisture detector 6 in an emergency.
Under emergency, the first microwave moisture detector 5 and the second microwave moisture detector 6 can be turned off through the external control photoelectric switch, and the influence of microwave signals on surrounding personnel is avoided.
Further, in an embodiment of the method for detecting moisture in boxed tobacco of the present invention, the step S2 may further include:
and step S23, establishing a connection relation between the near infrared light moisture detection assembly and the microwave moisture detection assembly so as to perform cross processing on a moisture detection result obtained based on the near infrared light moisture detection assembly and a detection result obtained based on the microwave moisture detection assembly.
In a specific implementation, the connection between the near infrared moisture detection assembly and the microwave moisture detection assembly may be achieved by a hose.
And step S3, obtaining a moisture detection result of the cigarette packet to be detected in the case according to the near infrared light moisture detection result and the microwave moisture detection result.
In an embodiment of the method for detecting moisture in boxed tobacco leaves, the step S3 may specifically include:
and step S31, judging whether the near infrared light moisture detection result and the microwave moisture detection result are abnormal or not based on a preset moisture threshold range.
The preset moisture threshold range corresponds to a moisture low limit value and a moisture high limit value. In specific implementation, whether the near-infrared moisture detection result and the microwave moisture detection result are abnormal or not can be monitored by using designed monitoring software.
Step S32, when the near-infrared light moisture detection result and/or the microwave moisture detection result are/is not abnormal, calibrating the near-infrared light moisture detection assembly and/or the microwave moisture detection assembly in which an abnormality occurs.
In specific implementation, designed calibration software can be used for monitoring whether the near infrared light moisture detection result and the microwave moisture detection result are abnormal or not.
And step S33, under the condition that the near infrared light moisture detection result and the microwave moisture detection result are not abnormal, calculating an average value or carrying out weighted summation on the near infrared light moisture detection result and the microwave moisture detection result to obtain a moisture detection result of the packaged cigarette packet of the box to be detected.
According to the moisture detection method for the boxed tobacco leaves, provided by the embodiment of the invention, the moisture condition of the boxed tobacco leaves can be conveniently detected by adopting the near-infrared light moisture detection assembly and the microwave moisture detection assembly, the detection of the tobacco leaf quality in the tobacco shred production link in the cigarette manufacturing process can be met, the full-line automation of modern cigarette processing enterprises can be met, and the manual use is reduced.
Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. A moisture detection method for boxed tobacco leaves is characterized by comprising the following steps:
conveying the cigarette packages to be tested on a transmission mechanism;
in the process of transmitting the box-packed cigarette packets to be detected, respectively utilizing a near-infrared light moisture detection assembly and a microwave moisture detection assembly to detect moisture of the box-packed cigarette packets to be detected so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result;
and obtaining a moisture detection result of the cigarette packet to be detected in the case according to the near infrared light moisture detection result and the microwave moisture detection result.
2. The method for detecting moisture in boxed tobacco leaves according to claim 1, wherein in the process of transmitting the boxed tobacco packets to be detected, moisture detection is performed on the boxed tobacco packets to be detected by using a near-infrared light moisture detection assembly and a microwave moisture detection assembly respectively so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result, and the method specifically comprises the following steps:
carrying out moisture detection on the packaged tobacco packages to be detected by utilizing the near-infrared light moisture detection assembly to obtain a near-infrared light moisture detection result;
and carrying out moisture detection on the cigarette packet to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result.
3. The method for detecting moisture in boxed tobacco leaves according to claim 2, wherein in the process of transmitting the boxed tobacco packets to be detected, moisture detection is performed on the boxed tobacco packets to be detected by using a near-infrared light moisture detection component and a microwave moisture detection component respectively so as to obtain a near-infrared light moisture detection result and a microwave moisture detection result, and the method further comprises the following steps:
and establishing a connection relation between the near infrared light moisture detection assembly and the microwave moisture detection assembly so as to perform cross processing on a moisture detection result obtained based on the near infrared light moisture detection assembly and a detection result obtained based on the microwave moisture detection assembly.
4. The method for detecting moisture in boxed tobacco leaves according to claim 2, wherein the moisture detection of the boxed tobacco leaves to be detected by using the near-infrared light moisture detection assembly is performed to obtain a near-infrared light moisture detection result, and the method specifically comprises the following steps:
performing moisture detection on the cigarette packet to be detected by using a first near-infrared light moisture detector arranged at the upper part of the transmission mechanism to obtain a first near-infrared light moisture detection result, wherein the lowest position of the first near-infrared light moisture detector is higher than the highest position of the cigarette packet to be detected on the transmission mechanism;
carrying out moisture detection on the packaged tobacco packages to be detected by using a second near-infrared light moisture detector arranged at the lower part of the transmission mechanism so as to obtain a second near-infrared light moisture detection result;
and obtaining the near-infrared light moisture detection result according to the first near-infrared light moisture detection result and the second near-infrared light moisture detection result.
5. The method for detecting moisture in boxed tobacco leaves according to claim 2, wherein the step of detecting moisture in the boxed tobacco leaf to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result comprises the following steps:
generating a microwave signal by using a microwave generator;
transmitting microwave signals to the packaged tobacco bale to be tested through a microwave output probe and a microwave sensing antenna;
receiving microwave signals containing detected information returned from the cigarette packages to be detected through the microwave sensing antenna and the microwave receiving probe;
and extracting the detected information of the returned microwave signals by using a microwave data processing unit, converting the returned microwave signals into current signals, sampling and processing the current signals to obtain moisture measured values at different positions of the box-packed cigarette packet to be detected, and calculating an average value of the moisture measured values at the different positions to obtain a microwave moisture detection result.
6. The method for detecting moisture in boxed tobacco leaves according to claim 5, wherein the moisture detection is performed on the boxed tobacco bale to be detected by using the microwave moisture detection assembly so as to obtain a microwave moisture detection result, and the method further comprises the following steps:
controlling the microwave moisture detection assembly to transmit a microwave signal by using an electromagnetic valve connected with the microwave moisture detection assembly;
and controlling the on-off of the electromagnetic valve by using a controller connected with the electromagnetic valve.
7. The method for detecting moisture in boxed tobacco leaves according to claim 2, wherein the method for detecting moisture in the boxed tobacco leaves to be detected by using the microwave moisture detection assembly to obtain a microwave moisture detection result specifically comprises the following steps:
performing moisture detection on the packaged tobacco packet to be detected by using a first microwave moisture detector arranged on one side of the transmission mechanism to obtain a first microwave moisture detection result;
performing moisture detection on the packaged tobacco packages to be detected by using a second microwave moisture detector arranged on the other side of the transmission mechanism to obtain a second microwave moisture detection result;
and obtaining the microwave moisture detection result according to the first microwave moisture detection result and the second microwave moisture detection result.
8. The method for detecting moisture in boxed tobacco leaves according to claim 7, wherein the first microwave moisture detector and the second microwave moisture detector are symmetrically arranged on two sides of the transmission mechanism, and a connecting line between the first microwave moisture detector and the second microwave moisture detector is perpendicular to the movement direction of the boxed tobacco to be detected on the transmission mechanism.
9. The method for detecting moisture in boxed tobacco leaves according to claim 7, wherein the moisture detection is performed on the boxed tobacco bale to be detected by using a microwave moisture detection assembly so as to obtain a microwave moisture detection result, and the method further comprises the following steps:
and the first microwave moisture detector and the second microwave moisture detector are respectively provided with an external control photoelectric switch so as to timely close the first microwave moisture detector and the second microwave moisture detector in emergency.
10. The method for detecting moisture in boxed tobacco leaves according to claim 1, wherein the step of obtaining the moisture detection result of the boxed tobacco bale to be detected according to the near-infrared light moisture detection result and the microwave moisture detection result specifically comprises the steps of:
judging whether the near infrared light moisture detection result and the microwave moisture detection result are abnormal or not based on a preset moisture threshold range;
under the condition that the near-infrared light moisture detection result and/or the microwave moisture detection result are not abnormal, calibrating the near-infrared light moisture detection assembly and/or the microwave moisture detection assembly with the abnormality;
and under the condition that the near infrared light moisture detection result and the microwave moisture detection result are not abnormal, calculating an average value or carrying out weighted summation on the near infrared light moisture detection result and the microwave moisture detection result to obtain a moisture detection result of the box-packed cigarette packet to be detected.
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| CN202011312012.XA CN112697741A (en) | 2020-11-20 | 2020-11-20 | Moisture detection method for boxed tobacco leaves |
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| CN114428083A (en) * | 2021-12-17 | 2022-05-03 | 中国电子科技集团公司第四十一研究所 | On-line raw material cigarette packet mildew composite detection method |
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