CN103543703A - Real-time food freshness monitor and monitoring method thereof - Google Patents
Real-time food freshness monitor and monitoring method thereof Download PDFInfo
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Abstract
The invention relates to a real-time food freshness monitor and a monitoring method thereof. the real-time food freshness monitor is characterized by comprising a master control module, a data acquiring module, a wired sensor, a wireless sensor, a network communication module and a power source module, wherein the master control module is connected with the data acquiring module, the data acquiring module is respectively connected with the wireless sensor and the wired sensor, the master control module is connected with the network communication module, and the network communication module is connected with a remote monitoring center by means of radio communication. The monitoring method includes steps of building a food freshness calculating model; calculating real-time nutrient of food; online monitoring and adjusting proper food storage environment conditions in real time, and transmitting the conditions to the remote monitoring center. By the real-time food freshness monitor and the monitoring method thereof, food freshness can be monitored online in real time, food storage period can be reliably predicted and transmitted to the remote monitoring center, and accuracy, reliability and timeliness of food freshness monitoring are improved.
Description
Technical field
The invention belongs to Food Monitoring technical field, especially a kind of food fresh keeping degree real-time monitor and monitoring method thereof.
Background technology
As everyone knows, at food transport and lay up period, the nutritive values of food such as fresh fruits and vegetables, meat, aquatic products, market business are worth all closely related with its freshness.And the freshness of food is subject to many impacts of environmental factor, the factors such as gas discharging in temperature, humidity, space all can cause the variation of food fresh keeping degree.At present, very deep for the research of food fresh keeping monitoring technology both at home and abroad, but be also faced with some insoluble problems:
Food variety is various, and corresponding fresh-keeping monitoring technology has difference more.Same fruit, after the improvement replacement, the physical and chemical index of monitoring can change, and has larger difference with general data.The variation of the physical and chemical index that food causes in storage and transportation, if cannot accurately be sent in real time laboratory by environmental parameters such as temperature, humidity, to forecasting inaccuracy storage period.
The collecting location of food material disperses, and Change Law of Quality need to manually go disposal data to go item by item to analyze, and has affected promptness and the accuracy of food material qualitative data.The research of prediction of food storage phase all needs manually to take a sample to research item by item, has lost to a great extent the ageing of prediction.
Food is in storage and transportation, the preservation technique method of taking is relevant with the cost of input, owing to there is no Monitoring Data in real time and accurately, when design preservation method, normally with the semiquantitative form of Semi-qualitative, regulated and controled, reliability is lower, can increase the possibility that food fresh keeping cost rises.
At present, in food transport and storage process, although there is the Related product of monitoring fresh-keeping environments temperature and humidity, but, the temperature that it monitors and humidity are objectively responding of fresh-keeping environments condition, owing to not accessing more food fresh keeping monitoring sensor, do not introduce the data model of the real-time nutrient of food, lack the intelligentized data handling procedure of real-time online, must cause it to lose the meaning of practical application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of reasonable in design, quick and precisely and food fresh keeping degree real-time monitor and monitoring method thereof easy to use.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of food fresh keeping degree real-time monitor, comprise main control module, data acquisition module, wired sensor, wireless senser, network communication module and power module, described power module is connected for its power supply with main control module, data acquisition module, network communication module and wired sensor; Described main control module is connected with data acquisition module, described data acquisition module is connected with wired sensor with wireless senser respectively, described main control module is connected with network communication module, and this network communication module is connected and realizes remote data transmission function with remote monitoring center by wireless mode.
And described main control module is also connected and realizes data exchanging function with display module, locating information module with voice by wired mode; Described network communication module is also connected and realizes data exchanging function with display module, locating information module with voice by wireless mode.
And described main control module comprises ARM core processor, storer, USB interface, GPIO interface and LCD LCD Interface, this ARM core processor is by spi bus, TTL parallel data bus line, I
2c bus or CAN bus connection data acquisition module, by USB interface or RS232 interface, be connected with network communication interface, standard interface by color LCD liquid crystal display can connect display screen and realize corresponding Presentation Function, by GPIO interface or RS485 interface attended operation button.
And, described data acquisition module comprises SOC single-chip microcomputer, wireless coupling matching module, CAN bus driver module, power transfer module, state indication coding setting module, power transfer module is connected with modules to realize 12V power supply is converted to the needed voltage of modules for its power supply, and SOC single-chip microcomputer is connected and is realized the data acquisition control function of wired sensor and wireless senser by CAN bus driver module, wireless coupling matching module.
And, described network communication module adopts GSM communication module, this communication module connects SIM chip by SIM interface, by USB interface or RS232 interface, be connected with main control module, by power interface, be connected with power supply, by audio interface, be connected with microphone and loudspeaker, by UART interface, be connected with RF antenna and realization is connected and realizes GPRS data communication facility with remote monitoring center.
And, between described main control module and data acquisition module, adopt spi bus, I
2c bus, TTL serial communication or TTL parallel port mode are connected and realize data exchanging function; Between described data acquisition module and wireless senser, adopt ZigBee, bluetooth or WIFI wireless communication mode to be connected and realize data exchanging function; Between described data acquisition module and wired sensor, adopt CAN, RS485 or MULTI BUS position bus communication mode to be connected and realize data exchanging function; Between described main control module and network communication module, adopt USB, RS232 interface, spi bus, I
2c bus, TTL serial communication or TTL parallel port mode are connected and realize data exchanging function; Between described network communication module and remote monitoring center, adopt GPRS, CDMA, 2G or 3G WIFI wireless Internet access mode to be connected and realize data exchanging function.
And described wireless senser and wired sensor comprise temperature sensor, humidity sensor and gas sensor, this wireless senser adopts the sensor with RFID recognition function.
A degree method of real-time, comprises the following steps:
Step 1, main control module are set up the computation model of food fresh keeping degree;
Step 2: data acquisition module is according to the environmental data of the food information obtaining on RFID label and Real-time Collection, and main control module calculates the real-time nutrient of food by the computation model of food fresh keeping degree.
Step 3: on-line real time monitoring is adjusted suitable food storing environmental baseline, and network communication module sends the result of calculating monitoring result data to remote monitoring center.
And described step 1 also comprises the step of setting up food storage phase forecast model; Described step 2 also comprises the step that calculates expectation storage number of days by food storage phase forecast model.
And, food fresh keeping degree method of real-time according to claim 9, is characterized in that: the computation model of described food fresh keeping degree and food storage phase forecast model comprise leaf vegetables freshness computation model and storage period forecast model, fish raw material freshness and storage period forecast model.
Advantage of the present invention and good effect are:
The present invention adopts the multiple types sensor fusion techniques in food fresh keeping monitoring field, and by built-in food nutrition freshness computation model algorithm, freshness that can on-line real time monitoring food, estimate out reliably the storage period of food, simultaneously, RFID cognitive function by wireless senser and mobile communication network by above-mentioned data upload to remote monitoring center, thereby real time on-line monitoring, the foodstuff nutriment of having realized food fresh keeping degree calculate, estimate storage period, working site monitoring is instructed, data System reporting functions.Accuracy, the reliability, ageing of the monitoring of food fresh keeping degree have been improved.
Accompanying drawing explanation
Fig. 1 is circuit frame principle figure of the present invention;
Fig. 2 is the circuit block diagram of main control module;
Fig. 3 be data acquisition module circuit frame principle figure;
Fig. 4 is the circuit frame principle figure of network communication module;
Fig. 5 is based on application system connection diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
A degree real-time monitor, as shown in Figure 1, comprises main control module, data acquisition module, wired sensor, wireless senser, network communication module, locating information module, voice and display module and power module.Its concrete annexation is as follows:
Described power module is connected for its power supply with main control module, data acquisition module, network communication module and wired sensor.The input end of this power module comprises that alternating voltage input interface (access 90V to 250V AC power) and reserve battery are as input interface (access single group 24V or single group 12V lead-acid accumulator, but also can access dynamic lithium battery group), power supply output module is exported 12V DC voltage after inter-process, be network communication module, main control module, data acquisition module and wired sensor power supply simultaneously, after each module and wired sensor access DC12V power supply, be directly converted to separately required voltage output.Described wireless senser all adopts inner lithium battery power supply, low power operation, and its inner intelligent chip regularly detects battery status, also it is passed to data acquisition module as data message packing hollow-square.
Between described main control module and data acquisition module, adopt spi bus, TTL parallel data bus line, I
2c bus or CAN bus exchanging data, main control module can access at most 4 data acquisition modules, and main control module completes the collection of data according to the mode of automatic regular polling, and fixed time interval is less than 10 milliseconds.Between main control module and data acquisition module, also can adopt other connected modes, as I
2c bus, TTL serial communication or TTL parallel port (8,16,32 bit data bus) mode is connected and realizes data exchanging function.
Described data acquisition module is to adopt ZigBee wireless communication protocol with being connected of wireless senser, utilizes improved ZigBee networking plan and ZBR routing algorithm, and wireless senser adopts the sensor with RFID recognition function.Between data acquisition module and wireless senser, can also adopt bluetooth or WIFI wireless communication mode to be connected and realize data exchanging function.Described data acquisition module is the communication protocol that adopts CAN bus with being connected of wired sensor.Wired sensor fully digitalization.Data transmit-receive mechanism and antijamming capability that CAN bus is exclusive, make the exchanges data of intermodule quick and precisely, and response rapidly.Above-mentioned wireless senser and wired sensor comprise temperature sensor, humidity sensor, gas sensor etc.Between data acquisition module and wired sensor, can also adopt RS485 or MULTI BUS position bus communication mode to be connected and realize data exchanging function.
The connected mode that adopts USB interface between described main control module and network communication module, plug and play is convenient, flexible; In data exchange process, two modules are carried out data check according to preset Knowledge Verification Model simultaneously, at data high-speed, handle up in transmission, introduce fuzzy control communication mechanism, so that between the efficiency and system resources consumption of exchanges data, find best balance.Between main control module and network communication module, can also adopt RS232 interface, spi bus, I
2c bus, TTL serial communication or TTL parallel port (8,16,32 bit data bus) mode is connected and realizes data exchanging function.
Described network communication module is connected and realizes data exchanging function with remote monitoring center by GPRS, CDMA, 2G or 3G WIFI wireless Internet access mode.
Described locating information module, voice and display module can be connected with main control module, also can be connected with network communication module.That is: locating information module is connected with main control module by RS232 wired mode, voice and display module are connected with main control module by RS485 wired mode, it utilizes line differential transmission mode to carry out exchanges data, above-mentioned two kinds of exchanges data are all by the good baud rate of software set and frame format, adopt CRC check mode, practicality and high efficiency.Locating information module, voice and display module can also be connected with mixed-media network modules mixed-media by wireless mode.Locating information module, voice and display module are realized respectively positioning function, voice play function and Presentation Function.
Below main modular of the present invention is described:
As shown in Figure 2, main control module comprises the RS232 serial ports of the NAND Flash of ARM core processor, 256MB and the DDR SDRAM of 128Mbyte, 2 standards, 2 USB interface, the network interface of 1 ethernet control chip DM9000AE expansion, the standard interface of color LCD liquid crystal display.By MULTBUS, be set to spi bus, for connection data acquisition module.RS232 serial ports by 2 standards is realized and locating information module, the voice function that is connected with display module.Standard interface by color LCD liquid crystal display can connect display screen and realize corresponding Presentation Function.GPIO is as key-press input, by this GPIO interface attended operation button.In the present embodiment, ARM core processor adopts ARM1176JZF-S technical grade high speed processor, and it adopts 64/32 inside bus structure, and internal resource is very abundant, integrated powerful hardware accelerator and multi-format codec.
As shown in Figure 3, data acquisition module comprises SOC single-chip microcomputer, wireless coupling matching module, CAN bus driver module, power transfer module, state indication coding setting module, power transfer module is connected with modules to realize 12V power supply is converted to the needed voltage of modules for its power supply, SOC single-chip microcomputer is by CAN bus driver module, wireless coupling matching module is connected and realizes the data acquisition function of wired sensor and wireless senser, be that data acquisition module is the communication protocol that adopts CAN bus with being connected of wired sensor, data acquisition module is to adopt ZigBee wireless communication protocol with being connected of wireless senser.In notebook data acquisition module, SOC single-chip microcomputer adopts the singlechip chip of ZigBee wireless technology, the SOC ZigBee product that meets IEEE802.15.4 standard, should complete wireless receiving and dispatching communication by transceiver module and each partial node of integrated chip, this chip internal is except comprising radio-frequency (RF) transceiver, also integrated reinforced 51MCU kernel, and comprised FLASH internal memory, RAM, ADC, DMA hardware configuration.This data acquisition module is the routing node of whole sensor network, and the data communication of responsible node, data analysis are processed; Each routing node forms wireless and wired monitoring group with the terminal node (digital sensor) of some as required.According to the feature of food fresh keeping distribution of facilities, for monitoring the network structure of the sensor location of the real-time freshness of food, adopt tree topology structure.Between data acquisition module and main control module, adopt spi bus, TTL parallel data bus line, I
2c bus or CAN bus exchanging data, main control module can access at most 4 data acquisition modules, and main control module completes the collection of data according to the mode of automatic regular polling.
As shown in Figure 4, network communication module adopts GSM communication module, this communication module connects SIM chip by SIM interface, by USB interface, be connected with main control module, by power interface, be connected with power supply, by audio interface, be connected with microphone and loudspeaker, by UART interface, be connected with RF antenna and realization is connected and realizes GPRS data communication facility with remote monitoring center.
The input voltage of described power module is the alternating voltage of 90V to 250V, and simultaneously with reserve battery input interface, the input interface of this reserve battery can access single group 24V or single group 12V lead-acid accumulator, but also can access dynamic lithium battery group.
Each related functional module of this food fresh keeping degree real-time monitor all adopts industrial standardization Integral design to form.The concrete technical requirement of using according to reality, can be similar to the stacking mode of building blocks, erects fast and neatly equipment, meets the needs of application.Above-mentioned modules is provided with waterproof package casing separately, has the mutual-inserting type interface of standard.The mode that can patch cascade by series connection between data acquisition module is expanded, and data acquisition module leaves the data-interface that main control module can directly be inserted in one end, and the other end of main control module is for incoming communication mixed-media network modules mixed-media.Power module can insert at any side joint of other module both sides.Locating information module, voice and display module belong to optional module, are divided into separately two kinds of specifications, a kind of be can with main control module wired connection, another kind be can with the wireless connections of communication network module.
This food fresh keeping degree real-time monitor can be with remote monitoring center (large-scale data center based on WEB service) by the GPRS network formation real-time monitoring system that links together, as shown in Figure 5.Can Real-Time Monitoring by GPRS network and manages the data that many monitors gather in remote monitoring center, by communicating by letter between built-in monitoring center software and real-time monitor, realize geographic position and upload with information and issue, realize the geographical information query function based on electronic chart.When surpassing preset scope, switching value input warning (being that state changes) and analog input, variation over presetting range, the temperature detecting starts GPRS data transmission.
In food fresh keeping degree real-time monitor inside, be provided with food fresh keeping degree Real-Time Monitoring software, this monitoring of software is except completing necessary monitoring and data-transformation facility, can also be according to the analyzing and processing of institute's image data, set up food inspection database, storage period forecast model, according to storage period forecast model and the food temperature that obtains, the storage period of automatic analysis prediction food, obtain the real-time nutrient of food material, be the required food materials of the nutrition dietary nutrition data that provides the foundation.Can grasp better food storage phase rule, analyze food store with transportation in the situation of change of physical property and nutritional labeling, reduce food store with transportation in the loss of nutritional labeling.
A degree method of real-time, comprises the following steps:
Step 1, main control module are set up the computation model of food fresh keeping degree.The computation model of this food fresh keeping degree and food storage phase forecast model comprise leaf vegetables freshness computation model and storage period forecast model, fish raw material freshness and storage period forecast model.Describe respectively below:
(1) freshness of leaf vegetables and the computation model of storage period
The fresh-keeping identification of leaf vegetables is mainly by finding the relation of leaf vegetables organoleptic quality and physical and chemical quality, thereby identify physical and chemical quality by organoleptic quality, this method has been selected weight-loss ratio, reduced form Vc loss percentage is as the physical and chemical quality index of leaf vegetables, subjective assessment, matter structure, color and luster is as organoleptic quality index, according to the related coefficient of each index of quality and physical and chemical index, Changing Pattern in conjunction with objective evaluation index, the selected sensory evaluation index that can reflect five kinds of leaf vegetables physical and chemical qualities, to subjective scoring, objective indicator and physical and chemical index are set up mathematical model, with this, make the theoretical foundation of fresh-keeping recognition methods.
It is independent variable that the distinguishing indexes of selecting is take in the present invention, take weight-loss ratio, reduced form Vc loss percentage is dependent variable, by computer fitting, obtain the fit equation between fit equation between five kinds of leaf vegetables weight-loss ratios and distinguishing indexes, reduced form Vc loss percentage and corresponding distinguishing indexes, the results are shown in Table 1, table 2.
The weight-loss ratio of table 1 leaf vegetables and the fit equation of its distinguishing indexes
The reduced form Vc loss percentage of table 2 leaf vegetables and the fit equation of distinguishing indexes
This method is by the relation of the research acceptability of food quality and storage temperature, period of storage.By T.T.T.(Time-Temperature Tolerance) method know food quality stability with the relation of storage temperature, period of storage, can calculate the food quality rate of descent certain temperature-time experience from T.T.T. method simultaneously, the storage period of prediction food, instruct the setting of storage temperature under specific storage period of condition.
The practical storage period of table 3 leaf vegetables and the relation of temperature
As can be seen from Table 3, along with the rising of temperature, the practical storage period of leaf vegetables is shorter and shorter, and the quality stability of leaf vegetables reduces along with the rising of temperature; By curve, obtained the practical storage period of five kinds of leaf vegetables and the relational model of temperature, can be for the prediction of the calculating of leaf vegetables quality rate of descent and leaf vegetables storage period with this.
The present invention draws by research storage period to five kinds of leaf vegetables:
1. the subjective scoring of leaf vegetables, weight-loss ratio, reduced form Vc loss percentage index terminal all shorten along with the raising of storage temperature, and under different temperatures, the sequencing that each index is reached home is different;
2. along with the raising of temperature, shorten the practical storage period of leaf vegetables, and practical storage period and temperature are exponential relationship, and related coefficient is better;
3. by the matching to data and curves, obtained model storage period of five kinds of leaf vegetables, can be for the prediction of the calculating of leaf vegetables quality rate of descent and leaf vegetables storage period, for food fresh keeping degree Real-Time Monitoring provides foundation with this.
(2) freshness of fish raw material and the computation model of storage period
This method is by having detected the basic nutrient content of crucian, silver carp, as basic data.Then, under 5 ℃ of environment temperatures, apply respectively 50%, 100%, 150%, 200%(take crucian weight as benchmark) with the fresh-keeping fish of ice amount, the relation of ice amount and fish body quality for research, pass through organoleptic quality evaluations, the detection of total volatile basic nitrogen, pH value transitivity index, determines that the most applicable ice amount of crucian is 150%.Next wrap and take crucian, the silver carp of the most applicable ice amount and in environment temperature, under 5 ℃, 15 ℃, 25 ℃, 35 ℃ conditions, store respectively, the indexs such as results of regular determination organoleptic quality, total volatile basic nitrogen, pH value transitivity, research duration of storage crucian, silver carp Change Law of Quality, analyze the correlativity of each index of quality, and set up respectively on this basis crucian, silver carp freshness and storage period forecast model.
Under the different reserve temperatures of table 4, the TVB-N value of crucian, silver carp is with the function of storage time
The crucian Arrhenius reaction kinetics equation expression formula obtaining by matching is:
Lnk=-4208.5 (1/T)+15.599(R
2=0.9957) formula 1
The silver carp Arrhenius reaction kinetics equation expression formula obtaining by matching is:
Lnk=-4017.4 (1/T)+15.109(R
2=0.9926) formula 2
(P
0-P
1)/2=k θ formula 3
In formula: P
0for sample initial quality; P
1the quality of sample when reaching shelf life; θ is sample shelf life.In conjunction with the Arrhenius reaction kinetics equation of crucian, silver carp, obtain their shelf life forecasting model:
Crucian: ln θ=4208.5 * (1/T)-13.4472 formula 4
Silver carp: ln θ=4017.4 * (1/T)-12.7807 formula 5
Table 5 crucian, silver carp storage period under different temperatures
In computation model involved in the present invention, each index of quality all have a good correlativity, related coefficient is all 0.8～0.9.
Step 2, data acquisition are according to the environmental data of the food information obtaining on RFID label and Real-time Collection, master control collection calculates the real-time nutrient of food by the computation model of food fresh keeping degree, by food storage phase forecast model, calculated and estimated to store number of days.
Main control module is according to storage period forecast model and the food temperature that obtains, the storage period of automatic analysis prediction food, obtains the real-time nutrient of food material, is the required food materials of the nutrition dietary nutrition data that provides the foundation.
Step 3, on-line real time monitoring are adjusted suitable food storing environmental baseline, and network communication module sends the result of calculating monitoring result data to remote monitoring center.
Interconnected wireless communication networks is moved in the utilization of this monitoring method, can be joined seamlessly to remote monitoring center (large-scale data center based on WEB service), by network service, is conducive to each party in request and grasps timely and accurately food information.
The Real-Time Monitoring fresh-keeping of vegetables degree system in Transporting Vegetables process of now take is example, and the course of work of the present invention is described:
Before lorry arrives dress vegetable plot point, install food fresh keeping degree real-time monitor equipment; When lorry reaches after dress main dishes and pastries, take out antistaling box, open the power supply of wireless humiture sensor, wireless senser effectively reads after the information in the RFID label on vegetables, wireless senser can send " serge, serge, serge " three sound and pipe, again wireless senser is placed on the sidewall of antistaling box, in antistaling box, puts into vegetables.RFID information exchange is crossed wireless senser, is automatically forwarded in food fresh keeping degree real-time monitor.After installing vegetables, can manually directly press the Real-Time Monitoring key on main control module panel, also can allow food fresh keeping degree real-time monitor automatically enter monitoring state (automatic decision can have more the time delay of 3 minutes than manual operation).
When monitor enters after Real-Time Monitoring state, by mobile network, set up and be connected with remote monitoring center immediately, start to upload loaded vegetables RFID information, the status informations such as humiture in fresh-keeping environments.Because time interval of default exchanges data is 15 minutes, so at interval of 15 minutes, food fresh keeping degree real-time monitor can be uploaded a secondary data.
From monitor enters Real-Time Monitoring state, food fresh keeping degree real-time monitor is according to the original useful data message obtaining on RFID, the environment parameter real-time monitoring, according to built-in data model, calculate in real time vegetables real-time nutrient, calculate and estimate the number of days stored.
Vegetables arrive behind destination, press the end monitoring key on main control module.Related data can deposit in food fresh keeping degree real-time monitor automatically.Then the wireless senser on antistaling box sidewall is taken off, close its power supply.
The watchdog routine at remote monitoring center can real time record monitoring point humiture data go forward side by side storage, analysis and the printing of line correlation data, the in the situation that of superscalar data, can notify related personnel by SMS alarm, food fresh keeping degree real-time monitor carries hummer and rings.During remote monitoring center shutdown, storehouse is when have a power failure, field data is kept in food fresh keeping degree real-time monitor always automatically, after all recover normally, humiture data during abnormal conditions can upload in remote monitoring in the heart automatically, can obliterated data, guarantee integrality, the continuity of data.On the DAP at remote monitoring center relevant for parameters such as the retention cycles of all kinds of vegetables, humiture requirements, this DAP can carry out statistical study the humiture information of collecting, the data that the client such as judge whether vegetables are fresh, whether humiture is qualified, how long the edible phase also has is concerned about.
See that the vegetables in application example detect data form, the time that exceeds threshold values refers to that humiture does not meet vegetables and preserves the time requiring, Surveillance center can send to supermarket person in charge these alarm prompts, and the staff in supermarket can according to circumstances improve the condition that vegetables are deposited.
When the edible number of days of vegetables approaches critical value, alarm prompt also can be sent in remote monitoring center, and supermarket staff can handle it in time according to these information.System also can, targetedly for client provides humanized service, as client is relatively concerned about edible number of days, can just be known the information of this respect before a week.The alarm time limit ，Rang data center that we can also reset system sends alarm prompt in the situation that edible number of days is less than or equal to certain day.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (10)
1. a food fresh keeping degree real-time monitor, it is characterized in that: comprise main control module, data acquisition module, wired sensor, wireless senser, network communication module and power module, described power module is connected for its power supply with main control module, data acquisition module, network communication module and wired sensor; Described main control module is connected with data acquisition module, described data acquisition module is connected with wired sensor with wireless senser respectively, described main control module is connected with network communication module, and this network communication module is connected and realizes remote data transmission function with remote monitoring center by wireless mode.
2. food fresh keeping degree real-time monitor according to claim 1, is characterized in that: described main control module is also connected and realizes data exchanging function with display module, locating information module with voice by wired mode; Described network communication module is also connected and realizes data exchanging function with display module, locating information module with voice by wireless mode.
3. food fresh keeping degree real-time monitor according to claim 1 and 2, it is characterized in that: described main control module comprises ARM core processor, storer, USB interface, GPIO interface and LCD LCD Interface, this ARM core processor is by spi bus, TTL parallel data bus line, I
2c bus or CAN bus connection data acquisition module, by USB interface or RS232 interface, be connected with network communication interface, standard interface by color LCD liquid crystal display can connect display screen and realize corresponding Presentation Function, by GPIO interface or RS485 interface attended operation button.
4. food fresh keeping degree real-time monitor according to claim 1 and 2, it is characterized in that: described data acquisition module comprises SOC single-chip microcomputer, wireless coupling matching module, CAN bus driver module, power transfer module, state indication coding setting module, power transfer module is connected with modules to realize 12V power supply is converted to the needed voltage of modules for its power supply, and SOC single-chip microcomputer is connected and is realized the data acquisition control function of wired sensor and wireless senser by CAN bus driver module, wireless coupling matching module.
5. food fresh keeping degree real-time monitor according to claim 1 and 2, it is characterized in that: described network communication module adopts GSM communication module, this communication module connects SIM chip by SIM interface, by USB interface or RS232 interface, be connected with main control module, by power interface, be connected with power supply, by audio interface, be connected with microphone and loudspeaker, by UART interface, be connected with RF antenna and realization is connected and realizes GPRS data communication facility with remote monitoring center.
6. food fresh keeping degree real-time monitor according to claim 1 and 2, is characterized in that: between described main control module and data acquisition module, adopt spi bus, I
2c bus, TTL serial communication or TTL parallel port mode are connected and realize data exchanging function; Between described data acquisition module and wireless senser, adopt ZigBee, bluetooth or WIFI wireless communication mode to be connected and realize data exchanging function; Between described data acquisition module and wired sensor, adopt CAN, RS485 or MULTI BUS position bus communication mode to be connected and realize data exchanging function; Between described main control module and network communication module, adopt USB, RS232 interface, spi bus, I
2c bus, TTL serial communication or TTL parallel port mode are connected and realize data exchanging function; Between described network communication module and remote monitoring center, adopt GPRS, CDMA, 2G or 3G WIFI wireless Internet access mode to be connected and realize data exchanging function.
7. food fresh keeping degree real-time monitor according to claim 1 and 2, it is characterized in that: described wireless senser and wired sensor comprise temperature sensor, humidity sensor and gas sensor, this wireless senser adopts the sensor with RFID recognition function.
8. a monitoring method for the food fresh keeping degree real-time monitor as described in claim 1 to 7 any one, is characterized in that: comprise the following steps:
Step 1, main control module are set up the computation model of food fresh keeping degree;
Step 2: data acquisition module is according to the environmental data of the food information obtaining on RFID label and Real-time Collection, and main control module calculates the real-time nutrient of food by the computation model of food fresh keeping degree.
Step 3: on-line real time monitoring is adjusted suitable food storing environmental baseline, and network communication module sends the result of calculating monitoring result data to remote monitoring center.
9. food fresh keeping degree method of real-time according to claim 8, is characterized in that: described step 1 also comprises the step of setting up food storage phase forecast model; Described step 2 also comprises the step that calculates expectation storage number of days by food storage phase forecast model.
10. food fresh keeping degree method of real-time according to claim 9, is characterized in that: the computation model of described food fresh keeping degree and food storage phase forecast model comprise leaf vegetables freshness computation model and storage period forecast model, fish raw material freshness and storage period forecast model.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020744A (en) * | 2014-06-13 | 2014-09-03 | 天津商业大学 | Fresh food sensor based on Internet of things and cold insulation supply chain monitoring method |
| CN106091568A (en) * | 2016-06-29 | 2016-11-09 | 合肥华凌股份有限公司 | A kind of intelligent refrigerator food control method based on parallel multithread, system and intelligent refrigerator |
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| CN108304970A (en) * | 2018-02-05 | 2018-07-20 | 西北农林科技大学 | The method for quick predicting and system of Apple, air conditioned storage monitoring system |
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| CN111159831A (en) * | 2018-10-18 | 2020-05-15 | 珠海格力电器股份有限公司 | Method and device for predicting freshness of food materials and household appliance |
| CN111861307A (en) * | 2020-06-16 | 2020-10-30 | 北京农业信息技术研究中心 | Fruit multivariate quality space-time distribution sensing method and system |
| CN113311748A (en) * | 2021-05-18 | 2021-08-27 | 南京有物信息科技有限公司 | Expiration date management and control system based on intelligent expiration date paste |
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| CN114543417A (en) * | 2022-03-06 | 2022-05-27 | 湖南嘉盛保鲜科技有限公司 | Food material dormancy fresh-keeping refrigerator |
| US11388325B2 (en) | 2018-11-20 | 2022-07-12 | Walmart Apollo, Llc | Systems and methods for assessing products |
| US11393082B2 (en) | 2018-07-26 | 2022-07-19 | Walmart Apollo, Llc | System and method for produce detection and classification |
| US11448632B2 (en) | 2018-03-19 | 2022-09-20 | Walmart Apollo, Llc | System and method for the determination of produce shelf life |
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Cited By (24)
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|---|---|---|---|---|
| CN104020744A (en) * | 2014-06-13 | 2014-09-03 | 天津商业大学 | Fresh food sensor based on Internet of things and cold insulation supply chain monitoring method |
| US11070895B2 (en) | 2014-12-31 | 2021-07-20 | Walmart Apollo, Llc | System and method for monitoring gas emission of perishable products |
| US10009667B2 (en) | 2014-12-31 | 2018-06-26 | Walmart Apollo, Llc | System and method for monitoring gas emission of perishable products |
| US10466111B2 (en) | 2016-05-05 | 2019-11-05 | Walmart Apollo, Llc | Systems and methods for monitoring temperature or movement of merchandise |
| CN106091568A (en) * | 2016-06-29 | 2016-11-09 | 合肥华凌股份有限公司 | A kind of intelligent refrigerator food control method based on parallel multithread, system and intelligent refrigerator |
| WO2018000980A1 (en) * | 2016-06-29 | 2018-01-04 | 合肥华凌股份有限公司 | Parallel multi-thread based food management method and system for intelligent refrigerator, and intelligent refrigerator |
| US11836674B2 (en) | 2017-05-23 | 2023-12-05 | Walmart Apollo, Llc | Automated inspection system |
| US11138554B2 (en) | 2017-05-23 | 2021-10-05 | Walmart Apollo, Llc | Automated inspection system |
| CN108304970A (en) * | 2018-02-05 | 2018-07-20 | 西北农林科技大学 | The method for quick predicting and system of Apple, air conditioned storage monitoring system |
| CN108304970B (en) * | 2018-02-05 | 2021-09-10 | 西北农林科技大学 | Method and system for rapidly predicting storage period of apples and controlled atmosphere storage monitoring system |
| US11448632B2 (en) | 2018-03-19 | 2022-09-20 | Walmart Apollo, Llc | System and method for the determination of produce shelf life |
| US11393082B2 (en) | 2018-07-26 | 2022-07-19 | Walmart Apollo, Llc | System and method for produce detection and classification |
| US11734813B2 (en) | 2018-07-26 | 2023-08-22 | Walmart Apollo, Llc | System and method for produce detection and classification |
| US11715059B2 (en) | 2018-10-12 | 2023-08-01 | Walmart Apollo, Llc | Systems and methods for condition compliance |
| CN111159831A (en) * | 2018-10-18 | 2020-05-15 | 珠海格力电器股份有限公司 | Method and device for predicting freshness of food materials and household appliance |
| US11388325B2 (en) | 2018-11-20 | 2022-07-12 | Walmart Apollo, Llc | Systems and methods for assessing products |
| US11733229B2 (en) | 2018-11-20 | 2023-08-22 | Walmart Apollo, Llc | Systems and methods for assessing products |
| CN109885115A (en) * | 2019-01-21 | 2019-06-14 | 宁波大红鹰学院 | One kind intelligent antistaling box control system Internet-based and method |
| US11810029B2 (en) | 2019-06-04 | 2023-11-07 | International Business Machines Corporation | Predictive forecasting of food allocation |
| CN110389120A (en) * | 2019-07-22 | 2019-10-29 | 云霄县食品快检中心 | A kind of detection data method for uploading based on fast inspection vehicle |
| CN111861307A (en) * | 2020-06-16 | 2020-10-30 | 北京农业信息技术研究中心 | Fruit multivariate quality space-time distribution sensing method and system |
| CN111861307B (en) * | 2020-06-16 | 2023-12-05 | 北京农业信息技术研究中心 | Fruit multi-element quality space-time distribution sensing method and system |
| CN113311748A (en) * | 2021-05-18 | 2021-08-27 | 南京有物信息科技有限公司 | Expiration date management and control system based on intelligent expiration date paste |
| CN114543417A (en) * | 2022-03-06 | 2022-05-27 | 湖南嘉盛保鲜科技有限公司 | Food material dormancy fresh-keeping refrigerator |
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