CN113222087A - Two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time and preparation method thereof - Google Patents
Two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time and a preparation method thereof, wherein the system comprises the following steps: respectively printing sensing color-changing inks such as temperature, humidity, gas and pressure on designated subareas of the two-dimensional code pattern to form a two-dimensional code integrated sensing label with multiple physical quantities sensed simultaneously, wherein the color of each subarea of the two-dimensional code integrated sensing label changes according to the change of the temperature, the humidity, the gas and the pressure of the surrounding environment; two-dimensional code APP scans the two-dimensional code through intelligent equipment, utilizes the color model to obtain the color characteristics of each subregion, and identifies real-time physical parameter values such as temperature, humidity, gas and pressure based on regional color change. The color information of the physical parameters acquired during scanning is stored or analyzed by using the two-dimensional code APP, the coding information and the real-time environment parameter values of the two-dimensional code are displayed on the intelligent equipment at the same time, and the neural network technology is used for carrying out perception data integration analysis processing, so that the real-time prompt and early warning function is realized.
Description
Technical Field
The invention relates to the technical field of two-dimensional codes and sensors, in particular to a two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time and a preparation method thereof.
Background
At present, two-dimensional codes are widely applied to packages, but the two-dimensional codes on most packages only have the function of storing simple information, and managers or users cannot acquire environmental information and change information of products from the existing two-dimensional codes for packages. Therefore, how to detect and transmit the change of the environmental parameters in real time in the packaging storage or transportation process with low cost, convenience and quickness is of great importance to the quality monitoring and safety of packaged products. The two-dimensional code is mature in the fields of anti-counterfeiting, traceability and the like. The function of expanding the two-dimensional code will expand the application field of the two-dimensional code.
In the process of transportation, sale and storage, a consumer can know the relevant information about the production date, the quality guarantee period, the storage requirement and the like of the food stored in the two-dimensional code by scanning the two-dimensional code on the relevant package. However, for the consumer or manager, the information is "static", i.e., the information is in a constant state throughout the life of the food product. For special medicines, cold chain foods, fragile products, vacuum packaging products and the like, it is very important to master the real-time quality of the products in the storage and transportation process. Therefore, there is an unmet need for a two-dimensional code integrated sensing tag which can reliably display environmental parameters of a product in a package in real time and has a conventional data storage function.
Disclosure of Invention
The invention aims to solve the technical problem of providing a two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time aiming at the defects in the prior art. The two-dimensional code integrated sensing tag can realize the real-time sensing function of parameters of product environment such as humidity, temperature, pressure, gas and the like on the basis of realizing the traditional function of data storage. Meanwhile, the collection, transmission and prediction of environmental multi-physical-quantity parameter data can be expected to be realized by combining a two-dimensional code APP technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: a two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time comprises: many physical quantities perception print ink that discolours, the integrated sensing label of two-dimensional code of many physical quantities simultaneous perception, the two-dimensional code discernment APP of integrated perception label, wherein:
the multi-physical quantity sensing color-changing printing ink is an environment sensing color-changing printing ink which is made of natural or synthetic sensing materials, and a two-dimensional code subregion of the environment sensing printing ink is set in computer software;
the two-dimensional code integrated sensing label with multiple physical quantities sensing simultaneously is applied to different scenes, and environment sensing color change printing ink is printed on a designated subarea on a substrate through a printer to form a color two-dimensional code pattern with an environment color change function;
two-dimensional code discernment APP, consumer or administrator pass through smart machine scanning colored two-dimensional code pattern, utilize the color model to obtain the color characteristic of each subregion to based on regional color change discernment real-time physical quantity parameter value, the physical parameter value and the color information that will scan and acquire utilize two-dimensional code APP to save and analysis processes, show coding information and real-time environment parameter value simultaneously on smart machine, and carry out new freshness suggestion early warning.
Further, the multiple physical quantities include humidity, temperature, pressure, gas.
Furthermore, the two-dimension code integrated sensing label with the simultaneous perception of multiple physical quantities further comprises a two-dimension code coding region, and data information coded by the two-dimension code coding region comprises the name, price, production date and origin of the monitored object.
Furthermore, the two-dimensional code integrated sensing label capable of sensing multiple physical quantities simultaneously is attached to the inside of the transparent package, and the attaching position of the two-dimensional code integrated sensing label is convenient for a manager or a consumer to scan and identify.
Furthermore, the two-dimension code integrated sensing label capable of sensing multiple physical quantities simultaneously is characterized in that the multi-physical quantity sensing color-changing printing ink is used as a printing raw material, the flexible substrate is used as a printing substrate, an ink-jet printing mode is adopted, original ink in a printer cartridge is replaced by the sensing color-changing printing ink, the environment sensing color-changing printing ink is printed on a designated subarea of the printing substrate through the printer, and after a two-dimension code pattern is formed, the two-dimension code integrated sensing label capable of sensing multiple physical quantities simultaneously is cut.
Furthermore, when the real-time physical quantity parameter value is identified based on the regional color change, a lookup table mapping mode is adopted to obtain the humidity value, the temperature value, the gas value and the pressure value corresponding to the color information.
Furthermore, a freshness prompt early warning is carried out based on a freshness model of humidity and temperature functions, and the specific implementation mode is as follows;
and collecting sample data sets with different humidity and certain temperature and different humidity, training the convolutional neural network to obtain a freshness model based on a temperature and humidity function, and predicting the freshness date of the food.
The invention also provides a preparation method of the two-dimensional code integrated sensing label system for monitoring the multiple physical quantity parameters in real time, which comprises the following steps:
step 1, preparing temperature, humidity, gas and pressure sensing color-changing ink;
step 2, absorbing the original ink in the purchased printer ink box, cleaning the original ink in the ink box by using an ethanol solution and deionized water under an ultrasonic condition, completely cleaning the original ink in the ink box, and drying the ink box in a vacuum drying oven to fully remove the residual ethanol and the residual water solution; after the ink box is dried, filling the prepared color-changing ink with known temperature, humidity, gas and pressure into the cleaned ink box by using a disposable needle tube;
step 3, setting CMYK values of different subregions in computer software, printing environment sensing color change printing ink on a designated subregion on a base material through a printer to form a color two-dimensional code pattern with an environment color change function, and cutting the color two-dimensional code pattern into a two-dimensional code integrated sensing label with multiple physical quantities sensed simultaneously;
step 4, the two-dimensional code sensing label is pasted inside an article or food package, and due to the fact that temperature and humidity inside the package and volatile gas generated by food enable each perception color-changing ink in the two-dimensional code integrated sensing label to generate a series of corresponding color changes, the color of each subarea of the two-dimensional code changes accordingly;
and 5, reading and processing colors of all subregions of the two-dimensional code integrated sensing label, scanning the two-dimensional code integrated sensing label in the article or food package by using the integrated sensing two-dimensional code APP through intelligent equipment by a consumer or a manager, acquiring color information of all subregions in the colored two-dimensional code pattern in real time, acquiring real-time temperature, humidity, gas and pressure of the article or food through the color information of all subregions, simultaneously displaying coded information and real-time environment parameter values on the intelligent equipment, acquiring a freshness model based on humidity and temperature functions by combining a neural network technology, and accurately predicting the freshness date of the article/food in different temperature and humidity environments.
Further, the preparation process of the temperature, humidity, gas and pressure sensing color-changing ink in the step 1 is as follows;
preparing temperature sensing color-changing ink, namely nano vanadium oxide ink, wherein the color of the ink changes along with the change of temperature;
configuring a humidity sensitive color-changing ink using a cobalt chloride configuration that transitions from an anhydrous form to a hydrated form at a relative humidity level from blue to pink for cobalt chloride;
preparing gas sensing ink, and using anthocyanin ink, wherein the anthocyanin is a non-toxic and harmless natural pigment and can present different colors along with the change of pH value;
and configuring pressure sensing ink, wherein the pressure sensing ink is prepared from thymol blue serving as a dye, is green in ambient air, is bright blue under high vacuum and is bright yellow under high air pressure.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention aims to monitor the environmental parameters of different packaged articles in real time by using a low-cost two-dimensional code integrated sensing tag and a smart phone, and realize accurate and rapid acquisition, transmission and prediction of article quality data.
2. The invention provides a wireless passive two-dimensional code integrated sensing tag for detecting the environment of a packaged object, which has the traditional data storage function of a two-dimensional code and can report the environment of a monitored object in real time through the color change of each subarea of the two-dimensional code.
3. The invention provides a two-dimensional code integrated sensing label printing technology, wherein the label is printed by a simple ink-jet printing technology, and original ink in an ink box of a printer is replaced by environment-sensing color-changing printing ink; each printing subarea for sensing color-changing ink is set in computer software.
4. The invention provides a two-dimensional code integrated sensing APP technology for simultaneously identifying colors and patterns of all subregions of a two-dimensional code. The consumer or the manager scans the two-dimensional code through the intelligent device, matches the color information of the two-dimensional code obtained during scanning with the relevant environmental parameter values and carries out data analysis and processing, and the acquisition, transmission and prediction of environmental parameter data can be realized.
5. The wireless passive two-dimensional code integrated sensing tag provided by the invention has the functions of traditional data storage, traceability and the like of the two-dimensional code, and also displays the environmental parameters of the monitored object in real time through the color change of each subregion of the two-dimensional code, so that the application function of the two-dimensional code is expanded, and managers and consumers can know the 'static' information about the monitored object and the 'dynamic' information about storage and transportation environments by scanning the two-dimensional code.
6. The physical quantity parameters that the two-dimensional code integrated sensing tag can monitor include but are not limited to: humidity, temperature, pressure, freshness, atmosphere, etc.
7. Compared with the prior art, the wireless passive two-dimensional code integrated sensing label provided by the invention can effectively avoid complex steps and circuits in the preparation process of an integrated sensor system, the preparation method of each sensing color-changing ink is simple, the ink-jet printing technology is utilized, the two-dimensional code integrated sensing label for monitoring multiple physical quantity parameters in real time can be simply and rapidly prepared, and the realization of large-scale production is facilitated. Besides, the produced two-dimensional code integrated sensing label system has static functions such as data storage of the existing two-dimensional code, real-time sensing and data acquisition, analysis and processing can be carried out on the environment of the monitored object in the transportation and storage processes, and the functions of the existing two-dimensional code are expanded. In conclusion, the two-dimension code integrated sensing label system provided by the invention is simple in process, low in cost, convenient and quick, and has a wide prospect in the field of Internet of things.
Drawings
Fig. 1 is a two-dimensional code integrated sensing tag designed according to an embodiment of the invention.
Fig. 2 is a diagram of a manufacturing process of a two-dimensional code integrated sensor tag according to an embodiment of the present invention.
Fig. 3 is a flowchart of a process of identifying APP information by two-dimensional code identification for real-time multiple physical quantity parameter monitoring according to an embodiment of the present invention.
Fig. 4 is a diagram of a method for using a two-dimensional code integrated sensor tag according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a two-dimensional code integrated sensing tag system for real-time multi-physical quantity parameter monitoring provided in an embodiment of the present invention includes: sensing color-changing printing ink such as temperature, humidity, gas and pressure, simultaneously sensing multiple physical quantities by using a two-dimensional code integrated sensing tag, and identifying APP (application) based on the two-dimensional codes of the multiple physical quantity sensing tag; wherein:
sensing color-changing printing ink of temperature, humidity, gas, pressure and the like, wherein natural or synthetic sensing materials are used for preparing environment sensing color-changing printing ink, and a two-dimensional code subregion of the environment sensing printing ink is set in computer software;
the two-dimensional code integrated sensing label prints environment perception color-changing printing ink on a designated subarea on a substrate through a printer to form a color two-dimensional code pattern. Each subarea corresponds to the physical quantities of environmental parameters such as humidity, temperature, pressure, gas and the like one by one, and the color of each subarea changes along with the change of the external environment;
two-dimensional code discernment APP, consumer or administrator pass through smart machine scanning two-dimensional code, utilize the color model of computer to obtain the color characteristic of each subregion to physical parameter values such as real-time temperature, humidity, gas, pressure are discerned based on regional color change. The color information of the physical parameters acquired during scanning is analyzed and processed by using a neural network technology, and the environmental information of the product is accurately, quickly and sensitively acquired, transmitted and predicted.
Fig. 2 discloses a preparation process of a two-dimensional code integrated sensing tag for real-time multi-physical quantity parameter monitoring. The natural or synthetic sensing color-changing ink is prepared into ink suitable for ink-jet printing and filled into an ink box of a printer, ink components and areas are set by computer software and printed on a suitable base material to prepare the two-dimensional code integrated sensing label.
Fig. 3 discloses an integrated sensing two-dimensional code recognition APP information recognition process.
Fig. 4 discloses a use method of the wireless and passive two-dimensional code integrated sensing tag. In the storage and transportation process, due to the environmental change of food/medicine, different color changes are generated in each subarea of the two-dimensional code integrated sensing label, the two-dimensional code pattern is scanned by combining the two-dimensional code APP technology, and real-time color information is acquired, so that the environmental parameter information of the product is acquired, and the environmental information of the product is acquired and the quality is judged and predicted.
In another embodiment of the invention:
in the embodiment, the monitoring of the inner packaging environment of cold chain articles/food is taken as an example, and a preparation method of the two-dimensional code integrated sensing tag is shown. As shown, the method comprises the following steps:
1. preparing temperature, humidity, gas and pressure sensing color-changing ink: preparing temperature-sensitive printing ink such as nano vanadium oxide ink and the like, wherein the color of the ink changes along with the change of temperature; inorganic salts such as cobalt (ii) chloride are used in humidity sensitive color change inks to convert from anhydrous to hydrated forms at Relative Humidity (RH) levels, ranging from blue (anhydrous) to pink (hydrated) for cobalt chloride. The perception of food freshness is also largely a perception of gases, such as fish spoilage, and the production of a large amount of amine gases, which can cause anthocyanin to change from rose-red to light blue, and in dairy and fermented products, CO2 is a major metabolite in the growth process of microorganisms, and therefore, an increase in the content of CO2 marks a decrease in food freshness. The gas sensing ink uses, for example, anthocyanidin, which is a non-toxic and harmless natural pigment and exhibits different colors according to the change of pH. The pressure sensing ink was formulated with the dye Thymol Blue (TB), green in ambient air (1 atmosphere), bright blue under high vacuum (<0.01 atmosphere), and bright yellow under high pressure (>10 atmosphere).
2. Ink box filling: the original ink in the purchased printer cartridge is sucked out, washed by ethanol solution and deionized water under the ultrasonic condition, the original ink in the cartridge is thoroughly washed, and the cartridge is dried in a vacuum drying oven to fully remove the residual ethanol and the water solution. After the ink cartridge is dried, the prepared thermochromic ink with temperature, humidity, freshness and pressure sensations is filled into the cleaned ink cartridge with a disposable syringe. For example, the thermochromic ink, the humidity-sensitive color-changing ink, the freshness indicating ink, and the pressure-sensitive color-changing ink may be filled in the ink storage positions of the original Y ink, the original M ink, the original K ink, and the original C ink in the color ink cartridge, respectively.
3. Printing of a two-dimensional code integrated sensor: the CMYK values of the different sub-areas are set in computer software and the two-dimensional code integrated sensor label is printed on a suitable printing substrate.
4. The two-dimensional code integrated sensor detects the environmental parameters of the cold chain articles/foods: the two-dimensional code sensing label is pasted inside an article/food package, and due to the fact that the temperature and the humidity inside the package, volatile gas and atmospheric pressure are generated with food, a series of corresponding color changes are generated by sensing color-changing inks in the two-dimensional code integrated sensing label, and the color of each subarea of the two-dimensional code changes accordingly.
5. Reading and processing the colors of all sub-areas of the two-dimensional code integrated sensing label: the consumer or manager can scan the inside two-dimensional code integrated sensing label of article/food package at any time with the help of smart machine, obtain real-time each subregion colour information of two-dimensional code, utilize integrated perception two-dimensional code APP, each subregion colour's RGB (or Lab) when accurately reading the scanning obtains many physical quantity parameters such as cold chain article/food real-time temperature, humidity, combine neural network technique to obtain the freshness model based on humidity and temperature function, the valid period/the fresh-keeping date of cold chain package article/food in the environment such as accurate prediction different temperatures, humidity. Through a large amount of experimental data detection, such as an experimental data set of the change of food freshness with time at a certain humidity and at 4 ℃ and an experimental data set of the change of food freshness with time at 20 ℃; and when the temperature is constant, an experimental data set of the change of the freshness of the food under different humidities along with the time and the like are used as input data of the neural network to train the neural network, and then a freshness model based on a temperature and humidity function is obtained, so that the freshness period of the food is predicted. The data information of the two-dimensional code comprises the real-time environmental parameters of the article/food: temperature, humidity, freshness, etc., expiration/freshness of the cold-chain packaged item/food, name, price, date of production, place of origin, detailed data skip link, etc.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time is characterized by comprising: many physical quantities perception print ink that discolours, the integrated sensing label of two-dimensional code of many physical quantities simultaneous perception, the two-dimensional code discernment APP of integrated perception label, wherein:
the multi-physical quantity sensing color-changing printing ink is an environment sensing color-changing printing ink which is made of natural or synthetic sensing materials, and a two-dimensional code subregion of the environment sensing printing ink is set in computer software;
the two-dimensional code integrated sensing label with multiple physical quantities sensing simultaneously is applied to different scenes, and environment sensing color change printing ink is printed on a designated subarea on a substrate through a printer to form a color two-dimensional code pattern with an environment color change function;
two-dimensional code discernment APP, consumer or administrator pass through smart machine scanning colored two-dimensional code pattern, utilize the color model to obtain the color characteristic of each subregion to based on regional color change discernment real-time physical quantity parameter value, physical parameter value and the colour information that will scan and acquire utilize two-dimensional code discernment APP to save and analysis processes, show coding information and real-time environment parameter value simultaneously on smart machine, and carry out new freshness suggestion early warning.
2. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 1, characterized in that: the multiple physical quantities include humidity, temperature, pressure, gas.
3. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 1, characterized in that: the two-dimensional code integrated sensing label capable of sensing multiple physical quantities simultaneously further comprises a two-dimensional code coding region, and data information coded by the two-dimensional code coding region comprises the name, price, production date and origin of the monitored object.
4. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 1, characterized in that: the two-dimensional code integrated sensing label capable of sensing multiple physical quantities simultaneously is attached to the inside of the transparent package, and the attaching position of the two-dimensional code integrated sensing label is convenient for a manager or a consumer to scan and identify.
5. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 1, characterized in that: the integrated sensing label of two-dimensional code of perception simultaneously is perceived with many physics volume and discolours printing ink as printing raw materials to flexible substrate is printing the substrate, adopts the inkjet printing mode, and the original dress ink in the printer ink cartridge is replaced with perception discolour printing ink, prints the appointed subregion on printing the substrate with environment perception discolour printing ink through the printer, after forming the two-dimensional code pattern, cuts out the integrated sensing label of two-dimensional code for perception simultaneously of many physics volume.
6. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 2, characterized in that: when the real-time physical quantity parameter values are identified based on the regional color change, a lookup table mapping mode is adopted to obtain humidity, temperature, gas and pressure values corresponding to the color information.
7. The two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time according to claim 2, characterized in that: carrying out freshness prompt early warning based on a freshness model of humidity and temperature functions, and specifically realizing the following mode;
and collecting sample data sets with different humidity and certain temperature and different humidity, training the convolutional neural network to obtain a freshness model based on a temperature and humidity function, and predicting the freshness date of the food.
8. A preparation method of a two-dimensional code integrated sensing label system for monitoring multiple physical quantity parameters in real time is characterized by comprising the following steps:
step 1, preparing temperature, humidity, gas and pressure sensing color-changing ink;
step 2, absorbing the original ink in the purchased printer ink box, cleaning the original ink in the ink box by using an ethanol solution and deionized water under an ultrasonic condition, completely cleaning the original ink in the ink box, and drying the ink box in a vacuum drying oven to fully remove the residual ethanol and the residual water solution; after the ink box is dried, filling the prepared color-changing ink with known temperature, humidity, gas and pressure into the cleaned ink box by using a disposable needle tube;
step 3, setting CMYK values of different subregions in computer software, printing environment sensing color change printing ink on a designated subregion on a base material through a printer to form a color two-dimensional code pattern with an environment color change function, and cutting the color two-dimensional code pattern into a two-dimensional code integrated sensing label with multiple physical quantities sensed simultaneously;
step 4, the two-dimensional code sensing label is pasted inside an article or food package, and due to the fact that temperature and humidity inside the package and volatile gas generated by food enable each perception color-changing ink in the two-dimensional code integrated sensing label to generate a series of corresponding color changes, the color of each subarea of the two-dimensional code changes accordingly;
and 5, reading and processing colors of all subregions of the two-dimensional code integrated sensing label, identifying the two-dimensional code integrated sensing label inside the scanned article or food package by the integrated sensing two-dimensional code recognition APP by a consumer or a manager through intelligent equipment, acquiring color information of all subregions in the colored two-dimensional code pattern in real time, acquiring real-time temperature, humidity, gas and pressure of the article or food through the color information of all subregions, simultaneously displaying coded information and real-time environment parameter values on the intelligent equipment, acquiring a freshness model based on humidity and temperature functions by combining a neural network technology, and accurately predicting the freshness period of the article or food in different temperature and humidity environments.
9. The method for manufacturing a two-dimensional code integrated sensor tag system for monitoring multiple physical quantity parameters in real time according to claim 8, wherein the method comprises the following steps: the preparation process of the temperature, humidity, gas and pressure sensing color-changing ink in the step 1 is as follows;
preparing temperature sensing color-changing ink, namely nano vanadium oxide ink, wherein the color of the ink changes along with the change of temperature;
configuring a humidity sensitive color-changing ink using a cobalt chloride configuration that transitions from an anhydrous form to a hydrated form at a relative humidity level from blue to pink for cobalt chloride;
preparing gas sensing ink, and using anthocyanin ink, wherein the anthocyanin is a non-toxic and harmless natural pigment and can present different colors along with the change of pH value;
and configuring pressure sensing ink, wherein the pressure sensing ink is prepared from thymol blue serving as a dye, is green in ambient air, is bright blue under high vacuum and is bright yellow under high air pressure.
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| CN108615065A (en) * | 2018-03-29 | 2018-10-02 | 江苏大学 | A method of intelligence indicates three-dimension code and its is monitored to food quality |
| CN109948765A (en) * | 2019-02-26 | 2019-06-28 | 江苏大学 | A kind of preparation and its application of the tractability three-dimension code that crab grade of freshness differentiates |
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| CN108615065A (en) * | 2018-03-29 | 2018-10-02 | 江苏大学 | A method of intelligence indicates three-dimension code and its is monitored to food quality |
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