CN107764948B - Ethylene gas content monitoring device and method - Google Patents
Ethylene gas content monitoring device and method Download PDFInfo
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- CN107764948B CN107764948B CN201711157922.3A CN201711157922A CN107764948B CN 107764948 B CN107764948 B CN 107764948B CN 201711157922 A CN201711157922 A CN 201711157922A CN 107764948 B CN107764948 B CN 107764948B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides an ethylene gas content monitoring device and a method, wherein the device comprises: the device comprises a control unit, an information acquisition unit, an A/D conversion unit, a clock unit and a storage unit; the information acquisition unit is used for acquiring ethylene gas analog signals in real time; the A/D conversion unit is used for converting the ethylene gas analog signal into a digital signal to obtain the ethylene gas content; the clock unit is used for recording the corresponding acquisition time when the information acquisition unit acquires the ethylene gas content; the control unit is used for controlling the acquisition process of the information acquisition unit and the recording process of the clock unit, acquiring the ethylene gas content and the corresponding acquisition time, and sending the ethylene gas content and the corresponding acquisition time to the storage unit. The ethylene gas content generated in the fruit and vegetable cold chain logistics transportation process can be recorded in real time, the change trend of the ethylene gas content along with time in the fruit and vegetable cold chain transportation process is convenient to establish, and a theoretical basis is provided for the fruit and vegetable cold chain transportation and storage technology.
Description
Technical Field
The invention relates to the technical field of cold-chain logistics, in particular to an ethylene gas content monitoring device and method.
Background
Because fruits and vegetables have the characteristics of high water content, easy damage, easy decay and deterioration, physiological phenomena such as respiration, ethylene ripening and the like exist after picking, and in the process of storage or cold-chain logistics transportation, due to the respiration of the fruits and vegetables and the influence of the environment, the ethylene gas generated by the fruits and vegetables can be gradually increased, so that the quality problems such as pulp browning, fruit decay and the like of the fruits and vegetables occur.
Along with the development of economy of developed countries and the increasing quality requirements of people on food, people pay more attention to cold chain transportation, monitoring and management on ethylene gas content in traditional cold chain transportation mainly depends on manual measurement and paper surface recording, although the measurement of the ethylene gas content can be realized, the monitoring and management can only realize manual measurement and recording at a certain time point, real-time monitoring in the cold chain transportation process cannot be realized, problems can only be found after the fact when the problems occur, and the problems cannot be corrected in time when the problems occur. Meanwhile, the workload of the workers is increased, so that the follow-up work is not facilitated.
Disclosure of Invention
To overcome or at least partially solve the above problems, the present invention provides an apparatus and a method for monitoring an ethylene gas content.
In one aspect, the present invention provides an ethylene gas content monitoring device, comprising: the device comprises a control unit, an information acquisition unit, an A/D conversion unit, a clock unit and a storage unit;
the information acquisition unit is used for acquiring ethylene gas analog signals in real time;
the A/D conversion unit is connected with the information acquisition unit and is used for converting the ethylene gas analog signal into a digital signal to obtain the ethylene gas content;
the clock unit is used for recording the acquisition time of the information acquisition unit when the ethylene gas analog signal is acquired;
the information acquisition unit, the A/D conversion unit, the clock unit and the storage unit are respectively in communication connection with the control unit, and the control unit is used for controlling the acquisition process of the information acquisition unit, controlling the conversion process of the A/D conversion unit and controlling the recording process of the clock unit;
the control unit is further used for acquiring the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal, and sending the acquired acquisition time of the ethylene gas content and the corresponding ethylene gas analog signal to the storage unit, so that the storage unit can correspondingly store the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal as one piece of information.
Preferably, the method further comprises the following steps: the GPRS wireless transmission unit is provided with an antenna;
the control unit is further configured to: and sending the ethylene gas content and the corresponding ethylene gas analog signal acquisition time to the storage unit, and meanwhile, sending the ethylene gas content and the corresponding ethylene gas analog signal acquisition time to a cloud server through the GPRS wireless transmission unit.
Preferably, the control unit is further configured to: and after the storage unit reaches the storage capacity, the storage mode set of the storage unit and the acquisition mode set of the information acquisition unit are respectively sent to the terminal through the GPRS wireless transmission unit, and the terminal is prompted to select.
Preferably, the apparatus further comprises: the system comprises a knowledge base unit, a data processing unit and a data processing unit, wherein an ethylene gas content threshold value is stored in the knowledge base unit;
the control unit is further configured to: and sending the gas content threshold value to a cloud server through the GPRS wireless transmission unit.
Preferably, the storage mode set of the storage unit specifically includes: a first mode, a second mode, and a third mode;
in the first mode, the control unit is further used for controlling the storage unit to remove the information which is stored in the storage unit firstly;
in a second mode, the control unit is further configured to control the storage unit to divide all information stored in the storage unit into two groups according to the storage time, and remove one group of information with the storage time earlier;
in a third mode, the control unit is further configured to control the storage unit to remove all information stored in the storage unit.
Preferably, the method further comprises the following steps: the display unit is in communication connection with the control unit, and a switch is further arranged between the display unit and the control unit;
correspondingly, the control unit is further configured to: and sending the ethylene gas content and the corresponding acquisition time to the storage unit, and sending the ethylene gas content and the corresponding acquisition time to the display unit.
In another aspect, the present invention further provides a method for monitoring ethylene gas content, comprising:
s1, acquiring ethylene gas analog signals acquired by an information acquisition unit in real time, converting the ethylene gas analog signals into digital signals to obtain ethylene gas content, and recording the acquisition time of the information acquisition unit when the ethylene gas analog signals are acquired;
and S2, sending the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal to a storage unit, so that the storage unit can correspondingly store the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal as a piece of information.
Preferably, the method further comprises:
and when the ethylene gas content and the corresponding acquisition time of the ethylene gas analog signal are sent to a storage unit, the ethylene gas content and the corresponding acquisition time of the ethylene gas analog signal are sent to a cloud server through the GPRS wireless transmission unit.
Preferably, the method further comprises:
acquiring the ethylene gas content corresponding to the current acquisition time in the cloud server and an ethylene gas content threshold;
and judging whether the ethylene gas content is smaller than the ethylene gas content threshold value or not, if so, predicting the corresponding ethylene gas content at the next moment based on all the ethylene gas contents in the cloud server and the acquisition moments of the corresponding ethylene gas analog signals.
Preferably, after sending the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal to a storage unit, the method further includes:
if the information stored in the storage unit reaches the storage capacity of the storage unit, respectively sending a storage mode set of the storage unit and an acquisition mode set of the information acquisition unit to a terminal, and prompting the terminal to select;
and acquiring the storage mode and the acquisition mode selected by the terminal, controlling the storage process of the storage unit according to the selected storage mode, and controlling the acquisition process of the information acquisition unit according to the selected acquisition mode.
Preferably, the storage mode set of the storage unit specifically includes: a first mode, a second mode, and a third mode;
and if the interval between the time of acquiring the storage mode selected by the terminal and the time of sending the storage mode set of the storage unit to the terminal is judged and known to be larger than a preset time period, or the storage mode selected by the terminal is not acquired, controlling the storage process of the storage unit according to the first mode.
The invention provides an ethylene gas content monitoring device and a method, wherein a clock unit, an A/D conversion unit and a storage unit are arranged in the ethylene gas content monitoring device, an ethylene gas analog signal acquired by an information acquisition unit is converted by the A/D conversion unit to obtain the ethylene gas content, each piece of ethylene gas content information corresponds to an acquisition moment, and the ethylene gas content and the acquisition moment of the corresponding ethylene gas analog signal are stored in the storage unit as one piece of information in real time. The ethylene gas content generated in the fruit and vegetable cold chain logistics transportation process can be recorded in real time, the change trend of the ethylene gas content along with time in the fruit and vegetable cold chain transportation process is convenient to establish, a theoretical basis is provided for the fruit and vegetable cold chain transportation and storage technology, and the problem of data loss caused by the fact that the ethylene gas content acquired in the network communication blocked environment cannot be transmitted in time can be solved.
Drawings
Fig. 1 is a schematic structural diagram of an ethylene gas content monitoring apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ethylene gas content monitoring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for monitoring ethylene gas content according to another embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for monitoring ethylene gas content according to another embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides an ethylene gas content monitoring device, including: the device comprises a control unit 1, an information acquisition unit 2, an A/D conversion unit 9, a clock unit 3 and a storage unit 4;
the information acquisition unit 2 is used for acquiring ethylene gas analog signals in real time;
the A/D conversion unit 9 is connected with the information acquisition unit 2, and the A/D conversion unit 9 is used for converting the ethylene gas analog signal into a digital signal to obtain the ethylene gas content;
the clock unit 3 is used for recording the acquisition time of the information acquisition unit 2 when acquiring the ethylene gas analog signal;
the information acquisition unit 2, the A/D conversion unit 9, the clock unit 3 and the storage unit 4 are respectively in communication connection with the control unit 1, and the control unit 1 is used for controlling the acquisition process of the information acquisition unit 2, controlling the conversion process of the A/D conversion unit 9 and controlling the recording process of the clock unit 3;
the control unit 1 is further configured to obtain the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal, send the obtained acquisition time of the ethylene gas content and the corresponding ethylene gas analog signal to the storage unit 4, and use the acquisition time of the ethylene gas content and the corresponding ethylene gas analog signal as a piece of information to be correspondingly stored by the storage unit 4.
Specifically, the information acquisition unit 2 adopted in the present invention may be an ethylene sensor, the ethylene sensor is used to acquire an ethylene gas analog signal by using an electrochemical detection technology, and the ethylene sensor is respectively connected to the control unit 1 and the a/D conversion unit 9, so that the control unit 1 controls the acquisition process of the ethylene sensor, and the acquired ethylene gas analog signal is converted into a digital signal by the a/D conversion unit 9, thereby obtaining the ethylene gas content. At the same time, the a/D conversion unit 9 is also connected to the control unit 1, so that the control unit 1 controls the conversion process of the a/D conversion unit 9. It should be noted that, in the present invention, the ethylene sensor can be connected to the control unit 1 and the a/D conversion unit 9 in a suitable manner, and a direct plug-in type or a wire-lead type can be adopted. For example, the pins of the ethylene sensor can be directly inserted into dedicated jacks on the control unit 1 and the a/D conversion unit 9, respectively, and the control unit 1 and the a/D conversion unit 9 can be placed together with the ethylene sensor at the position to be monitored. The pins of the ethylene sensor may also be connected to the control unit 1 and the a/D conversion unit 9, respectively, through a length of wire, so that the ethylene sensor may be separated from the control unit 1 and the a/D conversion unit 9 by a certain distance. The ethylene sensor used in the embodiment needs 3.3V DC power supply, the detection range of the ethylene sensor is 0-100ppm, namely the range of the ethylene sensor is 1 mg/L.
The information acquisition unit 2 acquires ethylene gas analog signals in real time, the A/D conversion unit converts the ethylene gas analog signals into digital signals in real time to obtain ethylene gas content, and the clock unit 3 records the acquisition time when the information acquisition unit 2 acquires the ethylene gas analog signals. The acquisition process of the information acquisition unit 2, the conversion process of the A/D conversion unit 9 and the recording process of the clock unit 3 are all controlled by the control unit 1. The a/D conversion unit 9 transmits the obtained ethylene gas content to the control unit 1, and the clock unit 3 transmits the acquisition time of the ethylene gas analog signal corresponding to the ethylene gas content to the control unit 1. The control unit 1 may also actively obtain the above-mentioned ethylene gas content and the corresponding acquisition time. The information acquisition unit 2, the A/D conversion unit 9, the clock unit 3 and the storage unit 4 are all in communication connection with the control unit 1, and the control unit 1 respectively sends a control instruction to control the information acquisition unit 2, the A/D conversion unit 9, the clock unit 3 and the storage unit 4 to start or stop working.
It should be noted here that, since the ethylene gas content is obtained through an ethylene gas analog signal, the acquisition time of the ethylene gas analog signal can be described as the acquisition time of the ethylene gas content, and hereinafter, "the acquisition time of the ethylene gas content and the corresponding ethylene gas analog signal" is described as "the ethylene gas content and the corresponding acquisition time".
The control unit 1 sends the ethylene gas content and the corresponding acquisition time to the storage unit 4 so that the storage unit 4 can store the ethylene gas content and the corresponding acquisition time in real time. When the storage unit 4 stores the ethylene gas content and the corresponding acquisition time as one piece of information, the ethylene gas content and the corresponding acquisition time are simultaneously and correspondingly stored, so that the corresponding acquisition time can be simultaneously called when the ethylene gas content is called later.
It should be noted that the ethylene gas content monitoring device provided by the invention can be applied to dynamic environments, such as transportation of long-distance cold chain automobiles. It can also be used in static environments, such as in storage locations such as shelves or refrigerators.
Preferably, the mobile SD card is selected as a storage unit to realize the function of storing information.
In this embodiment, a clock unit and a storage unit are disposed in the ethylene gas content monitoring device, and after the analog signals of ethylene gas collected by the information collection unit are converted by the a/D conversion unit, the obtained ethylene gas content corresponds to a collection time, and the ethylene gas content and the corresponding collection time are stored in the storage unit as a piece of information in real time. The ethylene gas content generated in the fruit and vegetable cold chain logistics transportation process can be recorded in real time, the change trend of the ethylene gas content along with time in the fruit and vegetable cold chain transportation process is convenient to establish, and a theoretical basis is provided for the fruit and vegetable cold chain transportation and storage technology.
On the basis of the above embodiment, the staff can retrieve the information stored in the storage unit 4 as required and draw a curve of the ethylene gas content changing with time. The staff can also call up the information stored in the storage unit 4 through the control unit 1.
On the basis of the above embodiment, the ethylene gas content monitoring apparatus provided by the present invention further includes: the GPRS wireless transmission unit is provided with an antenna;
the control unit is further configured to: and sending the ethylene gas content and the corresponding acquisition time to the storage unit, and sending the ethylene gas content and the corresponding acquisition time to a cloud server through the GPRS wireless transmission unit. The information stored in the storage unit and the information in the cloud server are enabled to achieve a synchronous updating state, so that a worker can remotely log in the cloud server to obtain the ethylene gas content of the ethylene gas content monitoring device in the environment, and the purpose of real-time monitoring is achieved.
On the basis of the above embodiment, the ethylene gas content monitoring apparatus provided by the present invention further includes: a power supply unit.
Preferably, the power supply unit is a rechargeable lithium ion battery with a capacity of 50000 mAh. This provides sufficient electricity to monitor and store ethylene gas content, whether for long-haul cold chain transportation or for fruit and vegetables in storage locations such as shelves or refrigerators.
On the basis of the above embodiment, the control unit specifically is: STC12C5A60S singlechip. The peripheral control circuit of STC12C5A60S singlechip includes: reset circuit, clock circuit, power and programming circuit. The reset circuit, the clock circuit, the power supply and program programming circuit are electrically connected with corresponding connecting ends of the STC12C5A60S singlechip. The STC12C5A60S single chip microcomputer converts the acquired information from analog signals into digital signals, and then the digital signals are respectively transmitted to the storage unit and the display unit and are transmitted to the cloud server through the GPRS wireless transmission unit. In the present invention, the STC12C5a60S single chip microcomputer is preferably selected, but the present invention is not limited thereto, and any device, unit, or the like that can perform a control function may be used.
On the basis of the above embodiment, the a/D conversion unit is an a/D conversion circuit.
On the basis of the above embodiment, the control unit is further configured to: and after the storage unit reaches the storage capacity, the storage mode set of the storage unit and the acquisition mode set of the information acquisition unit are respectively sent to the terminal through the GPRS wireless transmission unit, and the terminal is prompted to select.
On the basis of the above embodiment, the storage pattern set of the storage unit specifically includes: a first mode, a second mode, and a third mode;
in the first mode, the control unit is further used for controlling the storage unit to remove the information which is stored in the storage unit firstly;
in a second mode, the control unit is further configured to control the storage unit to divide all information stored in the storage unit into two groups according to the storage time, and remove one group of information with the storage time earlier;
in a third mode, the control unit is further configured to control the storage unit to remove all information stored in the storage unit.
It should be noted that, the storage manner of the storage unit provided by the present invention is to allocate a storage location to each piece of information, where the storage location of the information stored before the storage time is before, and the storage location of the information stored after the storage time is after. For example, the storage unit has n +1 storage positions, and the n storage positions are x [0], x [1], … … and x [ n ] from front to back.
When the storage unit stores the information, a storage position is configured for each piece of information. When the information stored in the storage unit reaches the storage capacity of the storage unit, there are no remaining storage locations to store the next incoming information. A removal operation is required for the information already stored in the memory cell. There are three schemes for the removal operation, which correspond to the first mode, the second mode, and the third mode, respectively.
In the first mode, the control unit controls the storage unit to remove a piece of information stored first in the storage unit and move information stored later in time forward in sequence. I.e. the information in the storage location x [0] is deleted, at which time x [0] is released, the information in the storage locations x [1], … …, x [ n ] is moved forward in sequence, so that the last storage location x [ n ] is released. When information is transferred into the storage unit, the newly transferred information can be stored on x [ n ]. The above operation is performed every time a new message is entered later.
In a second mode, the control unit is further configured to control the storage unit to divide all information stored in the storage unit into two groups according to the sequence of storage time, remove a group of information with the previous storage time, and move a group of information with the later storage time to a storage location where a group of information with the previous storage time is located. I.e. deleting the information from the storage location x 0-x n/2, half of the storage locations will be released, and moving the information from x n/2+ 1-x n +1 to x 0-x n/2 in turn, so that x n/2+ 1-x n +1 will be released. When information is transferred into the storage unit, the newly transferred information is stored on x [ n/2+1] -x [ n +1 ]. When x [ n/2+1] -x [ n +1] is occupied, the above operation is repeatedly executed. Wherein n is an even number.
The third mode is to remove all the information stored in the storage unit, i.e. all storage locations are released. When information is transferred into the storage unit, the newly transferred information can be stored in the first storage location. When all the released storage positions are occupied, the above operation is repeatedly performed.
Three storage modes are set for the storage unit, so that the working personnel can select the storage mode at the terminal according to the requirements, and the user experience can be improved.
On the basis of the above embodiment, the collection mode set of the information collection unit specifically includes: a first acquisition mode and a second acquisition mode.
In a first acquisition mode, setting an acquisition time interval, specifically, controlling an information acquisition unit to acquire an ethylene gas analog signal once every a preset time interval by a control unit; the preset time interval can be set as required, and can be specifically set to be 1-5 min.
In a second acquisition mode, setting dynamic storage, specifically, judging whether several pieces of information which are stored recently in the storage unit are the same by the control unit, if so, only retaining one piece of information which is stored recently, and deleting other same information; otherwise, the data is stored continuously without deletion processing. For example, if the staff selects the second acquisition mode at the terminal, the control unit judges whether the 5 pieces of information stored recently in the storage unit are the same, if so, only one piece of information stored recently is retained, and other 4 pieces of information which are the same are deleted; otherwise, the data is stored continuously without deletion processing.
On the basis of the above embodiment, the ethylene gas content monitoring apparatus provided by the present invention further includes: the display unit is in communication connection with the control unit;
correspondingly, the control unit is further configured to: and sending the acquired information to the storage unit and sending the acquired information to the display unit.
Specifically, a display unit is arranged in the ethylene gas content monitoring device, the control unit sends the obtained ethylene gas content and the corresponding acquisition time to the display unit, and the display unit displays the ethylene gas content in the environment at each time, so that workers in the environment where the ethylene gas content monitoring device is applied can observe the ethylene gas content in the environment in real time. Preferably, an LCD12864 liquid crystal panel may be used as the display unit.
On the basis of the above embodiment, a switch is further provided between the display unit and the control unit, and the switch is controlled by the control unit.
Specifically, the timing of the control unit controlling the switch to be turned on or off can be set according to specific situations. For example, when ethylene gas content generated by fruits and vegetables in the cold-chain logistics transportation process needs to be monitored, in order to save electric energy, the control unit can be set to control the switch to be in the off state, the control unit can also be set to control the switch to be in the on state at preset intervals, and certain duration time is set for the on state. For example, the control switch may be set to be in an on state every 10min, and the duration of the on state may be set to 5 min. When the fruits and vegetables are on the goods shelf or stored in the refrigerator, the device can control the switch to be in the on state when measuring the ethylene gas content generated by the fruits and vegetables, so that the ethylene gas content can be monitored in real time, and the freshness of the fruits and vegetables can be mastered in real time.
On the basis of the above embodiment, the apparatus further includes: the system comprises a knowledge base unit, a data processing unit and a data processing unit, wherein an ethylene gas content threshold value is stored in the knowledge base unit;
the control unit is further configured to: the GPRS wireless transmission unit sends the ethylene gas content threshold to the cloud server so as to judge whether the ethylene gas content corresponding to the current acquisition time on the cloud server is smaller than the ethylene gas content threshold, and if the ethylene gas content is smaller than the ethylene gas content threshold, the ethylene gas content in the environment at the next time can be predicted according to historical data.
It should be noted that the ethylene gas content threshold in this embodiment refers to the maximum value of the ethylene gas content that can be generated by the fruits and vegetables.
In this embodiment, by providing the knowledge base unit, a judgment condition can be provided for predicting the ethylene gas content. And because the staff can predict according to the historical data on the high in the clouds server, then can know ethylene gas content in advance, and then can in time avoid the rotten condition of fruit vegetables to take place.
On the basis of the embodiment, APP can be further arranged at the terminal, so that a user can log in the cloud server through the APP on the terminal anytime and anywhere to monitor the ethylene gas content in real time. Meanwhile, the system can remotely use a computer to log in a cloud server, so that a worker can check the variation trend of the ethylene gas content generated in the whole fruit and vegetable storage process or transportation process, and all information on the cloud server can be downloaded for subsequent processing.
As shown in fig. 2, a schematic view of a complete structure of an ethylene gas content monitoring device provided by the present invention specifically includes: the intelligent control system comprises a control unit 1, an information acquisition unit 2, an A/D conversion unit 9, a clock unit 3, a storage unit 4, a GPRS wireless transmission unit 5, a power supply unit 6, an LCD display unit 7 and a knowledge base unit 10, wherein an antenna 8 is arranged on the GPRS wireless transmission unit 5. The connection relationship and information transmission among the components in the device are the same as those in the above embodiments, and are not described again here.
As shown in fig. 3, on the basis of the above embodiment, another embodiment of the present invention provides an ethylene gas content monitoring method, including:
s1, acquiring ethylene gas analog signals acquired by an information acquisition unit in real time, converting the ethylene gas analog signals into digital signals to obtain ethylene gas content, and recording the acquisition time of the information acquisition unit when the ethylene gas analog signals are acquired;
and S2, sending the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal to a storage unit, so that the storage unit can correspondingly store the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal as a piece of information.
Specifically, the execution main body of this embodiment is a control unit, and the specific monitoring process corresponds to the embodiments of the apparatus one to one, which is not described herein again.
In this embodiment, the ethylene gas analog signal acquired by the information acquisition unit is converted into the ethylene gas content, and the ethylene gas content and the corresponding acquisition time recorded by the clock unit are stored in the storage unit as a piece of information. The ethylene gas content generated in the fruit and vegetable cold chain logistics transportation process can be recorded in real time, the change trend of the ethylene gas content along with time in the fruit and vegetable cold chain transportation process can be conveniently established, a theoretical basis is provided for the fruit and vegetable cold chain transportation and storage technology, and the problem of data loss caused by the fact that the ethylene gas content acquired in the network communication blocked environment cannot be transmitted in time can be solved.
On the basis of the above embodiment, the ethylene gas content monitoring method further includes:
and when the ethylene gas content and the corresponding acquisition time are sent to a storage unit, the ethylene gas content and the corresponding acquisition time are sent to a cloud server through the GPRS wireless transmission unit. The information stored in the storage unit and the information in the cloud server are enabled to achieve a synchronous updating state, so that a worker can remotely log in the cloud server to obtain the ethylene gas content of the ethylene gas content monitoring device in the environment, and the purpose of real-time monitoring is achieved.
On the basis of the above embodiment, the ethylene gas content monitoring method further includes:
will ethylene gas content and corresponding collection constantly send to the memory cell when, will ethylene gas content and corresponding collection constantly pass through GPRS wireless transmission unit send to with the display element, make the display element show the ethylene gas content in the environment at every moment, make the staff in the environment that ethylene gas content monitoring devices used can observe the ethylene gas content in the environment in real time.
On the basis of the above embodiment, the ethylene gas content monitoring method further includes:
acquiring the ethylene gas content corresponding to the current acquisition time in the cloud server and an ethylene gas content threshold;
and judging whether the ethylene gas content is smaller than the ethylene gas content threshold value or not, if so, predicting the corresponding ethylene gas content at the next moment based on all the ethylene gas contents in the cloud server and the acquisition moments of the corresponding ethylene gas analog signals.
Specifically, the embodiment provides a method for predicting the ethylene gas content corresponding to the next moment according to the historical information stored in the cloud server. Whether prediction is carried out or not is judged by judging whether the ethylene gas content corresponding to the current acquisition time is smaller than the ethylene gas content threshold value or not, and if so, the ethylene gas content at the next time is possibly increased, so that the prediction is needed. During prediction, a Back Propagation (BP) neural network is adopted in the embodiment, the BP neural network is trained through all ethylene gas contents in the cloud server and corresponding acquisition moments, and the trained BP neural network is used for predicting the ethylene gas content at the next moment. And if the ethylene gas content corresponding to the current acquisition moment is greater than the ethylene gas content threshold, the cloud server sends an alarm message to the terminal.
And if the ethylene gas content at the next moment obtained by prediction is smaller than the ethylene gas content threshold, continuing to predict the ethylene gas content corresponding to the subsequent moment. And if the predicted ethylene gas content at the next moment is greater than the ethylene gas content threshold, the cloud server sends an alarm message to the terminal. Specifically, the alarm message may be sent through the APP or may be sent in a form of a short message, which is not specifically limited herein.
In this embodiment, for predicting ethylene gas content and providing the judgement condition, because the staff can predict according to the historical data on the high in the clouds server, then can know ethylene gas content in advance, and then can in time avoid the rotten condition of fruit vegetables to take place.
On the basis of the above embodiment, after sending the ethylene gas content and the corresponding acquisition time to the storage unit, the method further includes:
if the information stored in the storage unit reaches the storage capacity of the storage unit, respectively sending a storage mode set of the storage unit and an acquisition mode set of the information acquisition unit to a terminal, and prompting the terminal to select;
and acquiring the storage mode and the acquisition mode selected by the terminal, controlling the storage process of the storage unit according to the selected storage mode, and controlling the acquisition process of the information acquisition unit according to the selected acquisition mode.
On the basis of the above embodiment, the storage mode set of the storage unit in the ethylene gas content monitoring method specifically includes: a first mode, a second mode, and a third mode;
in a first mode, removing a piece of information stored first in the storage unit;
in a second mode, dividing all information stored in the storage unit into two groups according to the sequence of storage time, and removing one group of information with the previous storage time;
in the third mode, all information stored in the storage unit is removed.
On the basis of the embodiment, if the interval between the time of acquiring the storage mode selected by the terminal and the time of sending the storage mode set of the storage unit to the terminal is judged to be larger than the preset time period or the storage mode selected by the terminal is not acquired, the storage process of the storage unit is controlled according to the first mode.
Specifically, the first mode, the second mode, and the third mode in this embodiment correspond to the first mode, the second mode, and the third mode in the above device type embodiments one to one, and are not described herein again in this embodiment.
On the basis of the above embodiment, the collection mode set of the information collection unit specifically includes: a first acquisition mode and a second acquisition mode.
In a first acquisition mode, setting an acquisition time interval, specifically, controlling an information acquisition unit to acquire an ethylene gas analog signal once every a preset time interval by a control unit; the preset time interval can be set as required, and can be specifically set to be 1-5 min.
In a second acquisition mode, setting dynamic storage, specifically, judging whether several pieces of information which are stored recently in the storage unit are the same by the control unit, if so, only retaining one piece of information which is stored recently, and deleting other same information; otherwise, the data is stored continuously without deletion processing. For example, if the staff selects the second acquisition mode at the terminal, the control unit judges whether the 5 pieces of information stored recently in the storage unit are the same, if so, only one piece of information stored recently is retained, and other 4 pieces of information which are the same are deleted; otherwise, the data is stored continuously without deletion processing.
As shown in fig. 4, on the basis of the foregoing embodiment, another embodiment of the present invention provides an ethylene gas content monitoring method, which specifically includes:
initializing the STC12C5A60S single chip microcomputer and each unit;
setting 3 storage modes, namely a first mode, a second mode and a third mode, for the storage unit;
the process enters a main cycle step of monitoring and storing:
firstly, judging whether the information stored in the storage unit reaches the storage capacity of the storage unit: and if so, respectively sending a first short message prompt and a second short message prompt to the terminal through the GPRS wireless transmission unit and waiting for a terminal selection result. For the first prompt of the short message, if the terminal does not select within 1 minute, the terminal defaults to enter a first mode of a storage unit; and if the terminal makes a selection within 1 minute, entering a corresponding mode of the storage unit according to the selection of the terminal. And after the storage mode is determined, performing zero clearing and subsequent steps of the LCD screen. And aiming at the second prompt of the short message, entering a first acquisition mode or a second acquisition mode according to the selection of the terminal. If the terminal does not select, the default terminal selects the first acquisition mode. And after the acquisition mode is determined, performing zero clearing and subsequent steps of the LCD screen.
If the information stored in the storage unit does not reach the storage capacity of the storage unit, entering the following steps;
clearing the LCD screen, recording real-time (the real-time is the acquisition time corresponding to the content of the ethylene gas acquired later) by using a clock unit, printing the real-time to a serial port of an STC12C5A60S single chip microcomputer, and then sending the real-time to a display unit, an SD card and a GPRS wireless transmission unit;
the control unit controls the ethylene sensor to collect ethylene gas content, the collected ethylene gas content is printed to a serial port of an STC12C5A60S single chip microcomputer, then the ethylene gas content is sent to the display unit, the SD card and the GPRS wireless transmission unit, the storage unit stores the obtained ethylene gas content and corresponding time in real time, and the GPRS wireless transmission unit uploads the received ethylene gas content and the corresponding time to the cloud server in real time;
and repeating the main circulation steps until the control unit controls the clock unit and the ethylene sensor to stop working.
The ethylene gas content monitoring device and the method provided by the invention can effectively monitor the ethylene gas content generated by fruits and vegetables in the cold-chain logistics transportation process and the ethylene gas content generated by the fruits and vegetables in storage places such as a shelf or a refrigerator for a long time, and the ethylene gas content monitoring device is small in size, convenient to carry, low in power consumption, low in cost and suitable for popularization and use.
Finally, the method of the present invention is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An ethylene gas content monitoring device, comprising: the device comprises a control unit, an information acquisition unit, an A/D conversion unit, a clock unit and a storage unit;
the information acquisition unit is used for acquiring ethylene gas analog signals in real time;
the A/D conversion unit is connected with the information acquisition unit and is used for converting the ethylene gas analog signal into a digital signal to obtain the ethylene gas content;
the clock unit is used for recording the acquisition time of the information acquisition unit when the ethylene gas analog signal is acquired;
the information acquisition unit, the A/D conversion unit, the clock unit and the storage unit are respectively in communication connection with the control unit, and the control unit is used for controlling the acquisition process of the information acquisition unit, controlling the conversion process of the A/D conversion unit and controlling the recording process of the clock unit;
the control unit is also used for acquiring the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal, sending the acquired ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal to the storage unit, and correspondingly storing the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal as a piece of information by the storage unit;
further comprising: the GPRS wireless transmission unit is provided with an antenna; the control unit is further configured to: after the storage unit reaches the storage capacity, the storage mode set of the storage unit and the acquisition mode set of the information acquisition unit are respectively sent to a terminal through the GPRS wireless transmission unit, and the terminal is prompted to select;
the collection mode set of the information collection unit specifically includes: a first acquisition mode and a second acquisition mode;
in the first acquisition mode, an acquisition time interval is set, and specifically, the control unit controls the information acquisition unit to acquire an ethylene gas analog signal every the acquisition time interval;
in the second acquisition mode, setting dynamic storage, specifically, judging whether several pieces of information which are stored recently in the storage unit are the same or not by the control unit, if so, only retaining one piece of information which is stored recently, and deleting other same information; otherwise, continuing to store the data and not deleting the data;
the storage mode set of the storage unit specifically includes: a first mode, a second mode, and a third mode;
in the first mode, the control unit is further used for controlling the storage unit to remove the information which is stored in the storage unit firstly;
in a second mode, the control unit is further configured to control the storage unit to divide all information stored in the storage unit into two groups according to the storage time, and remove one group of information with the storage time earlier;
in a third mode, the control unit is further used for controlling the storage unit to remove all the information stored in the storage unit;
the control unit is further configured to: and if the interval between the time of acquiring the storage mode selected by the terminal and the time of sending the storage mode set of the storage unit to the terminal is judged and known to be larger than a preset time period, or the storage mode selected by the terminal is not acquired, controlling the storage process of the storage unit according to the first mode.
2. The apparatus of claim 1, wherein the control unit is further configured to: and sending the ethylene gas content and the corresponding ethylene gas analog signal acquisition time to the storage unit, and meanwhile, sending the ethylene gas content and the corresponding ethylene gas analog signal acquisition time to a cloud server through the GPRS wireless transmission unit.
3. The apparatus of claim 2, further comprising: the system comprises a knowledge base unit, a data processing unit and a data processing unit, wherein an ethylene gas content threshold value is stored in the knowledge base unit;
the control unit is further configured to: and sending the ethylene gas content threshold to a cloud server through the GPRS wireless transmission unit.
4. An ethylene gas content monitoring method, comprising:
s1, acquiring ethylene gas analog signals acquired by an information acquisition unit in real time, converting the ethylene gas analog signals into digital signals to obtain ethylene gas content, and recording the acquisition time of the information acquisition unit when the ethylene gas analog signals are acquired;
s2, sending the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal to a storage unit, so that the storage unit can correspondingly store the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal as a piece of information;
after the ethylene gas content and the acquisition time of the corresponding ethylene gas analog signal are sent to a storage unit, the method further comprises the following steps:
if the information stored in the storage unit reaches the storage capacity of the storage unit, respectively sending a storage mode set of the storage unit and an acquisition mode set of the information acquisition unit to a terminal, and prompting the terminal to select;
acquiring a storage mode and an acquisition mode selected by the terminal, controlling the storage process of the storage unit according to the selected storage mode, and controlling the acquisition process of the information acquisition unit according to the selected acquisition mode;
the collection mode set of the information collection unit specifically includes: a first acquisition mode and a second acquisition mode;
in the first acquisition mode, setting an acquisition time interval, specifically controlling the information acquisition unit to acquire an ethylene gas analog signal every the acquisition time interval;
in the second acquisition mode, setting dynamic storage, specifically judging whether several pieces of information which are stored recently in the storage unit are the same, if so, only retaining one piece of information which is stored recently, and deleting other same information; otherwise, continuing to store the data and not deleting the data;
the storage mode set of the storage unit specifically includes: a first mode, a second mode, and a third mode;
in the first mode, the control unit is further used for controlling the storage unit to remove the information which is stored in the storage unit firstly;
in a second mode, the control unit is further configured to control the storage unit to divide all information stored in the storage unit into two groups according to the storage time, and remove one group of information with the storage time earlier;
in a third mode, the control unit is further used for controlling the storage unit to remove all the information stored in the storage unit;
and if the interval between the time of acquiring the storage mode selected by the terminal and the time of sending the storage mode set of the storage unit to the terminal is judged and known to be larger than a preset time period, or the storage mode selected by the terminal is not acquired, controlling the storage process of the storage unit according to the first mode.
5. The method of claim 4, further comprising:
and sending the ethylene gas content and the corresponding acquisition time of the ethylene gas analog signal to a storage unit, and sending the ethylene gas content and the corresponding acquisition time of the ethylene gas analog signal to a cloud server through a GPRS wireless transmission unit.
6. The method of claim 5, further comprising:
acquiring the ethylene gas content corresponding to the current acquisition time in the cloud server and an ethylene gas content threshold;
and judging whether the ethylene gas content is smaller than the ethylene gas content threshold value or not, if so, predicting the corresponding ethylene gas content at the next moment based on all the ethylene gas contents in the cloud server and the acquisition moments of the corresponding ethylene gas analog signals.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056442A (en) * | 2007-05-28 | 2007-10-17 | 中兴通讯股份有限公司 | SMS processing method and mobile terminal using same |
| CN101159963A (en) * | 2007-11-09 | 2008-04-09 | 深圳华为通信技术有限公司 | Method of erasing terminal data and terminal equipment |
| CN101923514A (en) * | 2010-08-27 | 2010-12-22 | 深圳市江波龙电子有限公司 | Management method and system of flash memory equipment |
| CN104359565A (en) * | 2014-10-17 | 2015-02-18 | 中国农业大学 | Cold-chain transport temperature monitoring and early warning method and system |
| CN105182849A (en) * | 2015-08-31 | 2015-12-23 | 中国农业大学 | Gas recording device facing fruit cold-chain logistics and method |
| CN105606653A (en) * | 2016-02-01 | 2016-05-25 | 浙江大学 | Wireless electronic nose system and method for monitoring quality of fruits and vegetables in transportation process |
| CN107146050A (en) * | 2017-04-24 | 2017-09-08 | 南京农业大学 | A kind of cold chain transportation environmental forecasting method and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227927A (en) * | 2015-10-15 | 2016-01-06 | 桂林电子科技大学 | A kind of monitor video date storage method and device |
| CN105373605A (en) * | 2015-11-11 | 2016-03-02 | 中国农业大学 | Batch storage method and system for data files |
| CN107205137A (en) * | 2017-07-07 | 2017-09-26 | 广东中星电子有限公司 | One kind monitoring recognition methods and device |
-
2017
- 2017-11-20 CN CN201711157922.3A patent/CN107764948B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056442A (en) * | 2007-05-28 | 2007-10-17 | 中兴通讯股份有限公司 | SMS processing method and mobile terminal using same |
| CN101159963A (en) * | 2007-11-09 | 2008-04-09 | 深圳华为通信技术有限公司 | Method of erasing terminal data and terminal equipment |
| CN101923514A (en) * | 2010-08-27 | 2010-12-22 | 深圳市江波龙电子有限公司 | Management method and system of flash memory equipment |
| CN104359565A (en) * | 2014-10-17 | 2015-02-18 | 中国农业大学 | Cold-chain transport temperature monitoring and early warning method and system |
| CN105182849A (en) * | 2015-08-31 | 2015-12-23 | 中国农业大学 | Gas recording device facing fruit cold-chain logistics and method |
| CN105606653A (en) * | 2016-02-01 | 2016-05-25 | 浙江大学 | Wireless electronic nose system and method for monitoring quality of fruits and vegetables in transportation process |
| CN107146050A (en) * | 2017-04-24 | 2017-09-08 | 南京农业大学 | A kind of cold chain transportation environmental forecasting method and system |
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|---|---|
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