CN109143987A - General control module suitable for Cold Chain Logistics compartment microenvironment - Google Patents
General control module suitable for Cold Chain Logistics compartment microenvironment Download PDFInfo
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- CN109143987A CN109143987A CN201710503834.8A CN201710503834A CN109143987A CN 109143987 A CN109143987 A CN 109143987A CN 201710503834 A CN201710503834 A CN 201710503834A CN 109143987 A CN109143987 A CN 109143987A
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- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000004088 simulation Methods 0.000 claims description 2
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- 230000003321 amplification Effects 0.000 description 4
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- 238000005057 refrigeration Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
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- 210000004369 blood Anatomy 0.000 description 1
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- 229960005486 vaccine Drugs 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of general control modules suitable for Cold Chain Logistics compartment microenvironment, it is characterized in that composition includes: RFID read-write module, sensor interface module, control interface module and microprocessor module；RFID read-write module is used to set the target component of compartment microenvironment, and sensor interface module includes analog sensor interface, digital transducer interface and input terminal, and control interface module includes driving circuit, relay group and output terminal.The present invention quickly and easily can set and change required environmental parameter according to kinds of goods difference, and acquire compartment environmental parameter in real time by configuring a variety of dissimilar sensors, while intelligence adjusts compartment microenvironment, to meet " 3T " principle of Cold Chain Logistics.
Description
Technical field
The present invention relates to the compartment microenvironment information Perceptions of Cold Chain Logistics and intelligent control equipment technical field, and in particular to
A kind of general control module suitable for Cold Chain Logistics compartment microenvironment.
Background technique
Cold Chain Logistics be with science and technology progress, Refrigeration Technique development and what is set up be with refrigerating process
Basis guarantees food quality, reduces a systematic engineering of business of food consumption using Refrigeration Technique as the low temperature logistics of means.Cold chain
Be widely applied in food production, still, at present medically application it is also more and more important, blood, vaccine and permitted
Multiple medicine product require to be transported by cold chain, and the requirement for cold chain is more stringent.
In recent years, as the improvement of people's living standards, people require also increasing year by year for the consumption of cold chain article.
People operate relevant Cold Chain Logistics also more and more concerned.Cold Chain Logistics generally follow " 3T " principle, i.e. product quality
Ultimately depend on storage and currency (Time), temperature (Temperature) and product storability in Cold Chain Logistics
(Tolerance)." 3T " principle mainly indicates that cold chain article quality is kept between permitted time and product temperature
Relationship, but sometimes other environmental parameters also will affect the variation of temperature, the freshness for cold chain article is also to have centainly
Influence.
It is many kinds of due to transport article in Cold Chain Logistics, according to the requirement of the respective characteristic of every kind of article, Ta Mensuo
The compartment microenvironment of demand is also different, this not only needs dedicated vehicle and keeps specific compartment microenvironment, with greater need for
A kind of general control module carries out the real-time detection and control of compartment microenvironment, so that " 3T " that meets Cold Chain Logistics is former
Then.
Although relatively more for the application and research of Cold Chain Logistics at present, currently existing scheme, technology or product are following
There is limitation in three aspects:
1, the setting, change of compartment microenvironment parameter are inconvenient.Since different Cold Chain Logistics articles join compartment microenvironment
Several requirements is different, it is therefore desirable to set reasonable each parameter area, and change parameter in storage and transportation difference article.In existing side
In method, relevant information is typically stored in microprocessor or memory, is unfavorable for setting, the change of compartment microenvironment parameter.
2, compartment microenvironment monitoring lacks versatility.On the one hand, a kind of article needs multiple sensors, some are analog
Sensor has current mode, voltage-type, and signal condition process is different, some are digital transducers, and digital transducer has
Different interface modes；On the other hand, a kind of article is changed to generally require to replace different sensors.Therefore existing specific or special
Monitoring pattern is not able to satisfy convenience, economic and efficient requirement.
3, lack compartment micro environment control means.Current technology scheme is to carry out to the compartment microenvironment of Cold Chain Logistics
Intelligent measurement is only alarmed, plays suggesting effect, cannot intelligently adjust when detection data is not in set range
The environmental parameter surveyed.
Summary of the invention
The present invention is to provide a kind of have universality, multi-functional be suitable in place of overcoming the shortcomings of the prior art
The general control module of Cold Chain Logistics compartment microenvironment, can according to different types of kinds of goods carry out quickly and easily setting and more
Change required environmental parameter, and acquires compartment microenvironment parameter, while intelligence in real time by configuring a variety of dissimilar sensors
Compartment microenvironment is adjusted, to meet " 3T " principle of Cold Chain Logistics.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of the characteristics of general control module suitable for Cold Chain Logistics compartment microenvironment of the invention is that composition includes: RFID
Module for reading and writing, sensor interface module, control interface module and microprocessor module；
The RFID read-write module is used to set the target component of compartment microenvironment and passes to the microprocessor module；
The sensor interface module includes analog sensor interface, digital transducer interface and input terminal, institute
It states analog sensor interface and digital sensor interface passes through the input terminal respectively and accesses respectively different types of mould
Quasi- sensor and digital sensor, to obtain the various parameters signal of the compartment microenvironment, and pass to the microprocessor
Module；
The microprocessor module is made of MCU microprocessor and storage card, and passes through the MCU microcomputer reads institute
Target component is stated, while receiving the various parameters signal of the compartment microenvironment and being stored in the storage card；
The various parameters signal of the compartment microenvironment is compared by the MCU microprocessor with the target component,
If exceeding the setting range of the target component, the duty ratio of PWM square wave is obtained by pid algorithm；And by the PWM square wave
Duty ratio be sent to the control interface module；
The control interface module includes driving circuit, relay group and output terminal；The driving circuit is according to being connect
The duty ratio of the PWM square wave of receipts is big by the power that the relay group controls the electrical equipment that is connected with the output terminal
It is small.
The present invention be suitable for Cold Chain Logistics compartment microenvironment general control module the characteristics of lie also in:
The analog sensor interface is made of multiple selector, programmable amplifier and programmable filter, and being used for will
Various analog sensor analog parameter signals collected are selected, amplified and are filtered.
The digital transducer interface is the wire jumper group being made of 1wire bus, I2C bus and spi bus, and is passed through
The mode of wire jumper obtains various digital transducers digital parameters signal collected.
The composition of the microprocessor module further includes touch screen, and the touch screen is for setting multiple selector, program-controlled
Amplifier and the corresponding parameter of programmable filter or target component, and various parameters signal collected and target component are carried out
Real-time display.
Compared with the prior art, the beneficial effects of the present invention are embodied in:
1, the present invention realizes a kind of design of general control module of compartment microenvironment suitable for Cold Chain Logistics, can be difference
Article provides the Detection & Controling of respectively suitable Cold Chain Logistics compartment microenvironment, has the characteristics that versatility, efficient, to have
Effect solves the problems of existing Cold Chain Logistics compartment microenvironment, provides one kind effectively for the development of modern Cold Chain Logistics
Detection & Controling measure.
2, it by the present invention in that with RFID read-write module, for the setting of the parameter to Cold Chain Logistics compartment microenvironment, mentions
The effective means for having supplied a kind of advanced compartment microenvironment parameter setting, FRID technology and the parameter setting of compartment microenvironment are had
Machine combines, for later the relevant technologies setting provide it is a kind of with reference to method.
3, it by the present invention in that with all kinds of electrical equipments of pid algorithm intelligent control, solves and only alarms in the prior art,
The problem of suggesting effect is played, to more effectively be adjusted to Cold Chain Logistics compartment microenvironment.
It 4, is different analog sensings by the present invention in that with multiple selector, programmable amplifier and programmable filter
Device provides the cutoff frequency of different amplification factor and filtering, improves the range of choice of analog sensor type.
5, by the present invention in that the wire jumper group formed with 1wire bus, I2C bus and spi bus, passes through simple wire jumper
Mode carries out the selection of different digital transducers, has the characteristics that simple, efficient.
6, the present invention can be carried out efficiently quickly parameter setting and change by touch panel device, to reach analog sensed
The optimal acquisition performance of device, while various parameters signal collected can also be carried out to real-time display, it is convenient to track compartment at any time
The Parameters variation situation of microenvironment, it is convenient and intuitive.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is FRID module for reading and writing application schematic diagram of the present invention；
Fig. 3 is inventive sensor interface module schematic diagram；
Fig. 4 is control interface module diagram of the present invention.
Specific embodiment
General control module of the invention, which is mainly to provide, a kind of easy to use is suitable for Cold Chain Logistics compartment microenvironment
Measurement and intelligent control different transport articles is ensured to transport object by using different sensor and electrical equipment
The environmental parameter of product is in suitable environment.
In the technology of existing Cold Chain Logistics compartment microenvironment, typically just for different transport articles using proprietary
Haulage vehicle ensure that the environmental parameter for this time transporting article is in suitable environmental field plus proprietary electrical equipment.And it is right
It is to configure different sensor and electrical equipment with different transport articles in general special module of the invention, no longer office
It is dedicated to limit special train.
As shown in Figure 1, in the present embodiment, a kind of composition of the general control module suitable for Cold Chain Logistics compartment microenvironment
It include: RFID read-write module, sensor interface module, control interface module and microprocessor module, wherein microprocessor module
Control other three modules；Have by microprocessor module to RFID read-write module, sensor module and control interface module
Effect controls and connects and composes this general control module, to meet the Cold Chain Logistics compartment micro-loop for being suitable for different shipped goods
Border.
As shown in Fig. 2, RFID read-write module is used to set the target component and cargo letter of compartment microenvironment in the present embodiment
It ceases and passes to microprocessor module；The convenient change to environmental parameter needed for different cargos；In the present embodiment, RFID read-write mould
Block uses Thingmagic M5e RFID reader.Acquisition for reading writing information involved in RFID reader is by special
RFID reader is connected to a computer, by the method for host computer by the information for the kinds of goods to be transported with it is required
Vehicle environment information is written in RFID card, wherein simple des encryption algorithm can be used for RFID card, it is ensured that its information
Safety.
In the prior art, for sensor type required for a kind of transport article, if to replace a certain sensing,
Hardware circuit involved in needing replacing and software program, the cost of the human and material resources spent are bigger.The present embodiment
Involved in all kinds of universal sensor interfaces can effectively avoid problems.
And in the monitoring process of the compartment microenvironment of present Cold Chain Logistics, microenvironment parameter in compartment detected is general only
It is related to temperature, humidity, intensity of illumination, the content of the gases such as methane, carbon dioxide or sulfur dioxide, the strong journey of compartment vibration
Degree etc..The various kinds of sensors related generally to, can be according to practical need nothing more than being analog sensor or digital transducer
All kinds of suitable sensors of selection are asked to require to realize.
As shown in figure 3, sensor interface module includes analog sensor interface, digital transducer interface and input terminal
By input terminal access, respectively different types of simulation is passed respectively for son, analog sensor interface and digital sensor interface
Sensor and digital sensor, to obtain the various parameters signal of compartment microenvironment, and the microprocessor module passed to；It is analog
Sensor interface is made of multiple selector, programmable amplifier and programmable filter, is used for various analog sensor institutes
The analog parameter signal of acquisition is selected, amplified and is filtered.MCU micro process is passed through for different types of analog sensor
The touch screen of device control obtains analog biography to multiple selector, programmable amplifier and the corresponding parameter setting of programmable filter
The optimum Working of sensor.In the present embodiment, analog sensor interface be by CD4052B multiple selector,
What PGA205 programmable amplifier and TLC14 programmable filter were realized, for analog sensor interface, first by mould collected
Analog quantity carries out switch selection by CD4052B multiple selector, then carries out signal amplification by PGA205 programmable amplifier, most
The A/D mouth conversion that analog parameter signal is connected to microprocessor is obtained after TLC14 programmable filter is filtered afterwards
For digital signal；The cutoff frequency filtered for amplification factor, the TLC14 programmable filter of PGA205 programmable amplifier can lead to
The selection that TFTLCD touch screen amplifies multiple and cutoff frequency is crossed, to effectively meet the amplification of different analog sensors
With filtering parameter requirement.
The wire jumper group that digital transducer interface is made of 1wire bus, I2C bus and spi bus, and pass through wire jumper
Whether mode determines the connection of digital transducer, to obtain various digital transducers digital quantity collected；It passes simultaneously
Pass microprocessor module；In specific implementation, due to the digital biography of the digital sensor ratio 1wire monobus of I2C bus type
Sensor application is more extensive, therefore the input terminal of I2C bus can be arranged more.
As shown in Figure 1, microprocessor module is made of MCU microprocessor, touch screen and storage card, microprocessor module
By the target component in MCU microcomputer reads RFID read-write module, while receiving the various parameters signal of compartment microenvironment
And it is stored in storage card；The compartment microenvironment analog quantity received is converted to digital signal amount by the A/D mouth of microprocessor, then
Microprocessor will receive that treated analog quantity is converted into corresponding ambient parameter information with digital quantity to be deposited together with goods information
Enter in storage card, true and reliable data source is provided for subsequent data analysis.For lacking the vehicle of RFID card in transport goods
When product, it can also be configured by target component of the touch screen to compartment microenvironment, and the parameter information of setting is deposited
In card storage, to be not limited to a kind of parameter setting mode.
In the present embodiment, microprocessor module uses STM32F103ZET6MCU processor, TFTLCD touch screen and Jin Shi
Pause SD card 4G storage card to realize.The information being stored in SD storage card can be read by TFTLCD touch screen, or
It is communicated by RS232 Serial Port Line with computer, obtains the information in SD storage card, can also be filled by dedicated SD card reader
Information in intermediate medium acquisition SD card provides effective data information source for later data information analysis；Next makes
It is exactly that different storage capacity requirements can be realized by simply replacing SD card with another use of SD card, and nothing
Any hardware environment and software program need to be changed.
In practical projects, the adjuster control law being most widely used is ratio, integral, differential control, abbreviation PID
Control.PID controller is simple with its structure, stability is good, reliable operation, major technique easy to adjust and becoming Industry Control
One of.When the structure and parameter of controlled device cannot be grasped completely, or cannot get accurate mathematical model, control theory other
Technology is also difficult to use, and the structure and parameter of system controller when determining, must be controlled by experience and field adjustable using PID
Technology processed is the most convenient.The parameter tuning of PID controller is the core content of Control System Design.It is according to controlled process
Characteristic asks the size with derivative time when determining the proportionality coefficient of PID controller, integral.
The various parameters signal of compartment microenvironment is compared by MCU microprocessor with compartment microenvironment target component, if
Range beyond compartment microenvironment target component then obtains the duty ratio of PWM square wave by pid algorithm；And accounting for PWM square wave
Empty ratio is sent to control interface module；Pid algorithm can be by the difference of the environmental parameter of collection in worksite and the target component of setting
It brings increment type PID algorithm formula into, the duty ratio of PWM square wave is determined by formula output quantity, subsequent driving circuit is according to this PWM
The duty ratio size of square wave determines the power of each regulated quantity, if the compartment microenvironment parameter of field real-time acquisition and target component
Then duty ratio is big greatly for deviation, and the output power of driving circuit becomes larger, so that the deviation of measured value and setting value be made to reduce rapidly；Instead
It, duty ratio reduces if the deviation of the two is small, and the output power of driving circuit is reduced, until target value it is equal with measured value or
Person is within the scope of allowable error, to achieve the purpose that automatic control.
As shown in figure 4, control interface module includes driving circuit, relay group and output terminal；Driving circuit can lead to
It crosses output terminal to be connected with external heavy current installation, to reach the function that forceful electric power separated and controlled external control devices with light current
Can, circuit uses relay as switch control device, and relay group is made of various types of electromagnetic relay；By
It is limited in the driving capability of MCU microprocessor, can not directly drive relay, therefore the present invention use ULN2003 chip as
The driving chip of relay, relay group can configure different relays according to the electrical equipment demand of electrical equipment group；
Driving circuit according to the duty ratio of received PWM square wave be connected with output terminal electricity by the control of relay group
The watt level of device equipment.During the intelligent control of the compartment microenvironment of Cold Chain Logistics, the electrical equipment related generally to is
Humidifier, dehumidifier, fluorescent lamp, heater, exhaust fan, air-conditioning etc., their opering characteristic of electric apparatus is different, required relay
Type is also different, and can be equipped with according to actual cargo requirement.Related control parameter is controlled using pid algorithm
It needs effectively to be arranged by TFTLCD touch screen according to actual needs.In vehicle operation, when detecting that compartment is micro-
When environmental parameter changes, asks when by changing the proportionality coefficient of pid algorithm, integrating with derivative time parameter and control difference
The watt level of electrical equipment realize intelligent control so that compartment microenvironment reaches suitable environmental parameter range
Purpose.
Claims (4)
1. a kind of general control module suitable for Cold Chain Logistics compartment microenvironment, it is characterized in that composition includes: RFID read-write mould
Block, sensor interface module, control interface module and microprocessor module；
The RFID read-write module is used to set the target component of compartment microenvironment and passes to the microprocessor module；
The sensor interface module includes analog sensor interface, digital transducer interface and input terminal, the mould
Quasi- formula sensor interface and digital sensor interface pass through the input terminal access respectively, and respectively different types of simulation passes
Sensor and digital sensor to obtain the various parameters signal of the compartment microenvironment, and pass to the microprocessor module；
The microprocessor module is made of MCU microprocessor and storage card, and passes through mesh described in the MCU microcomputer reads
Parameter is marked, while receiving the various parameters signal of the compartment microenvironment and being stored in the storage card；The MCU microprocessor
The various parameters signal of the compartment microenvironment is compared with the target component, if exceeding the setting of the target component
Range then obtains the duty ratio of PWM square wave by pid algorithm；And the duty ratio of the PWM square wave is sent to the control and is connect
Mouth mold block；
The control interface module includes driving circuit, relay group and output terminal；The driving circuit is received according to institute
The duty ratio of PWM square wave controls the watt level for the electrical equipment that is connected with the output terminal by the relay group.
2. the general control module according to claim 1 suitable for Cold Chain Logistics compartment microenvironment, it is characterized in that: described
Analog sensor interface is made of multiple selector, programmable amplifier and programmable filter, is used for various analog biographies
Sensor analog parameter signal collected is selected, amplified and is filtered.
3. the general control module according to claim 1 suitable for Cold Chain Logistics compartment microenvironment, it is characterized in that: described
Digital transducer interface is the wire jumper group being made of 1wire bus, I2C bus and spi bus, and is obtained by way of wire jumper
Take various digital transducers digital parameters signal collected.
4. the general control module according to claim 2 suitable for Cold Chain Logistics compartment microenvironment, it is characterized in that: described
The composition of microprocessor module further includes touch screen, and the touch screen is for setting multiple selector, programmable amplifier and program-controlled
The corresponding parameter of filter or target component, and various parameters signal collected and target component are subjected to real-time display.
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| CN201710503834.8A CN109143987A (en) | 2017-06-28 | 2017-06-28 | General control module suitable for Cold Chain Logistics compartment microenvironment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710503834.8A CN109143987A (en) | 2017-06-28 | 2017-06-28 | General control module suitable for Cold Chain Logistics compartment microenvironment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197621A (en) * | 2013-03-04 | 2013-07-10 | 李代万 | Cold chain monitor, cold chain monitoring system and control method of cold chain monitoring system |
| CN103777557A (en) * | 2014-02-28 | 2014-05-07 | 安徽农业大学 | Common measurement and control module applicable to carriage microenvironment of cold-chain logistic |
| CN206039230U (en) * | 2016-09-23 | 2017-03-22 | 广东海洋大学 | Aquatic products cold chain logistics storage environment remote monitering system based on thing networking |
-
2017
- 2017-06-28 CN CN201710503834.8A patent/CN109143987A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197621A (en) * | 2013-03-04 | 2013-07-10 | 李代万 | Cold chain monitor, cold chain monitoring system and control method of cold chain monitoring system |
| CN103777557A (en) * | 2014-02-28 | 2014-05-07 | 安徽农业大学 | Common measurement and control module applicable to carriage microenvironment of cold-chain logistic |
| CN206039230U (en) * | 2016-09-23 | 2017-03-22 | 广东海洋大学 | Aquatic products cold chain logistics storage environment remote monitering system based on thing networking |
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