CN109636267A - A kind of dual power supply management system of mobile cold chain shelter - Google Patents
A kind of dual power supply management system of mobile cold chain shelter Download PDFInfo
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- CN109636267A CN109636267A CN201811348103.1A CN201811348103A CN109636267A CN 109636267 A CN109636267 A CN 109636267A CN 201811348103 A CN201811348103 A CN 201811348103A CN 109636267 A CN109636267 A CN 109636267A
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- battery
- power supply
- shelter
- management system
- voltage
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
- G06Q10/083—Shipping
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention discloses a kind of dual power supply management systems of mobile cold chain shelter, shelter power-supply management system and battery power management system including being electrically connected battery.The shelter power-supply management system includes Switching Power Supply, control mainboard, cloud server and liquid crystal Hall Coulomb meter；The battery is powered by the liquid crystal Hall Coulomb meter to the control mainboard；Alternating current is converted to direct current by the Switching Power Supply, is on the one hand charged by the liquid crystal Hall Coulomb meter to the battery, is on the other hand powered to the control mainboard；The control mainboard obtains the sampled voltage of the battery by the liquid crystal Hall Coulomb meter, and is transmitted to the cloud server；Sampled voltage compared with preset threshold, is sent under-voltage information to predetermined mobile phone user according to comparison result by the cloud server.The invention enables batteries to obtain most intelligent utilization and protection under the duplicate protection of two dual power supply management systems, guarantees to provide burning voltage for shelter.
Description
Technical field
The invention belongs to technical field of power management, more particularly to the dual power supply management system of mobile cold chain shelter.
Background technique
Currently, cold chain shelter in the market does not have power supply system or using traditional electricity supply mode, mentioned only with battery
Power supply source achievees the purpose that the simple square cabin of cooling or even useful ice block cooling for compressor operating.Ice block cooling can not
Control factor causes the deepfreeze of cabinet unstable, it cannot be guaranteed that the safe storage of article and transport.Even if cold using compressor
Solidifying cooling, the power supply instability of compressor with can not monitor be also traditional cold chain shelter a big defect.It is particularly applied to medicine
When transport, if existing defects of powering, it cannot be guaranteed that the stabilization of temperature, can seriously affect the quality of drug.Moreover, data cannot
It is uploaded onto the server by network, only there and then is checked, cannot achieve cloud synchronization, the cloud storage of data and tracking.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of dual power supply management system of mobile cold chain shelter, so that electric
Pond obtains intelligent utilization and protection under the duplicate protection of dual power supply management system, guarantees to provide burning voltage for shelter.
In order to solve the above technical problem, the present invention provides technical solution are as follows: a kind of dual power supply of mobile cold chain shelter
Management system, shelter power-supply management system and battery power management system including being electrically connected battery, the shelter electricity
Management system includes Switching Power Supply, control mainboard, cloud server and liquid crystal Hall Coulomb meter；
The battery is powered by the liquid crystal Hall Coulomb meter to the control mainboard；
The liquid crystal Hall Coulomb meter monitors the electricity of the battery；
Alternating current is converted to direct current by the Switching Power Supply, is on the one hand filled by the liquid crystal Hall Coulomb meter to the battery
On the other hand electricity is powered to the control mainboard；
The control mainboard obtains the sampled voltage of the battery by the liquid crystal Hall Coulomb meter, and is transmitted to the cloud
Server；
Sampled voltage compared with preset threshold, is sent under-voltage information to predetermined mobile phone according to comparison result by the cloud server
User.
The present invention is further arranged to, and the control mainboard includes motherboard hardware circuit and mainboard processor, the mainboard
After hardware circuit is sampled by electric resistance partial pressure, sampled voltage is defeated by mainboard processor, mainboard processor uploads sampled voltage
Cloud server.
The present invention is further arranged to, and the preset threshold includes first threshold and second threshold, and first threshold is electricity
The low voltage value for needing to charge is pressed through, second threshold is that brownout electricity will exhaust, and mainboard has been turned off the confession of shelter compressor
The voltage value of electricity；When sampled voltage is lower than first threshold, cloud server sends under-voltage information to mobile phone；Sampled voltage is lower than the
When two threshold values, the control mainboard cutting shelter compressor power supply, the cloud server sends under-voltage shutdown information to mobile phone.
The present invention is further arranged to, and the battery power management system includes:
For acquiring the battery parameter sampling module of all kinds of parameters of battery；
For calculating the state-of-charge estimation block of the ratio of the remaining capacity of battery；
Active equalization control module for energy between balanced each single battery；
The battery failures diagnostic module of battery failures is diagnosed according to battery parameter；And
The battery thermal management control module for cooling down to battery or heating up according to battery temperature.
The present invention is further arranged to, and the battery parameter of the battery parameter sampling module acquisition includes: single battery electricity
Pressure, single battery temperature, whole group cell voltage and whole group battery current.
The present invention is further arranged to, and the state-of-charge estimation block carries out state-of-charge using Kalman filtering method and estimates
It calculates.
The present invention is further arranged to, and the battery failures diagnostic module is by connection host computer or based on the remote of server
Range monitoring platform, electric current, voltage, temperature parameter when the host computer or remote monitoring platform work according to battery, diagnosis electricity
The operating status in pond.
The present invention is further arranged to, the battery failures diagnostic module according to battery temperature compared with given threshold, root
Heating module is controlled according to difference or refrigerating module is heated up or cooled down to battery.
The beneficial effects of the present invention are: the present invention realizes double control and protection by dual power supply management system.Can be
Shelter provides stabilized power supply, guarantees the stable operation of shelter, to guarantee that article is constantly in safe storage environment.Meanwhile
Using technology of Internet of things, equipment end and server platform is made to interconnect and monitor display cell voltage.Pass through effective monitoring and control
The idle energy consumption of square cabin apparatus can be effectively reduced, extend the service life of battery, energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 is the structure chart of shelter power-supply management system in the present invention；
Fig. 2 is battery parameter sampling module structure chart in the present invention；
Fig. 3 is LTC6804-2 chip sampling module architecture diagram in the present invention；
Fig. 4 is the hardware structural diagram of battery power management system in the present invention；
Fig. 5 is battery power management system block diagram in the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1-Fig. 3, the dual power supply management system of mobile cold chain shelter of the invention are please referred to, including is electrically connected electric power storage
The shelter power-supply management system and battery power management system in pond 1.
The shelter power-supply management system includes Switching Power Supply 2, control mainboard 3, cloud server 4 and liquid crystal Hall coulomb
Meter 5.Control mainboard 3 includes motherboard hardware circuit 31 and mainboard processor 32.Wherein, S-750-36 switch can be selected in Switching Power Supply
WLS-PVA050 liquid crystal Hall Coulomb meter can be selected in power supply, liquid crystal Hall Coulomb meter.
Battery 1 is powered by the liquid crystal Hall Coulomb meter 5 to the control mainboard 3.In the situation that battery 1 is under-voltage
Under, alternating current is converted into DC24V by Switching Power Supply 5 and is powered to control mainboard 3.The electricity of the monitoring battery 1 of liquid crystal Hall Coulomb meter 5
Amount.Liquid crystal Hall Coulomb meter 5 can observe battery dump energy percentage (indicating using battery icon lattice number) and residue at any time
Electricity number, liquid crystal Hall Coulomb meter liquid crystal display can show negative current, negative power, burden product electric energy, battery when battery charges
Liquid crystal Hall Coulomb meter can show positive current, positive and just accumulate electric energy when electric discharge, and the understanding for making user clear is worked as
Preceding battery service condition.The also settable superpressure of liquid crystal Hall Coulomb meter, low pressure, supercurrent alarm indication function, to guarantee battery
Stability in use.
Motherboard hardware circuit 31 obtains the sampled voltage of battery 1 by liquid crystal Hall Coulomb meter 5, is adopted by electric resistance partial pressure
After sample, sampled voltage is defeated by mainboard processor 32, sampled voltage is uploaded cloud server 4 by mainboard processor 32.Cloud clothes
Sampled voltage compared with preset threshold, is sent under-voltage information to predetermined mobile phone user according to comparison result by business device 4.Preset threshold
Including first threshold and second threshold, when sampled voltage is lower than first threshold, cloud server 4 sends under-voltage information to default hand
Machine, user can charge the battery after mobile phone receives under-voltage information, to continue to meet work requirements.Furthermore, it is possible to pass through
Cell phone application accesses server, at any time invoking server information, checks all voltage sample data current and before, clothes at any time
The time interval that business device uploads data can be set as every five minutes once.When sampled voltage is lower than second threshold, control mainboard 3 is cut off
The power supply of shelter compressor, cloud server 4 send under-voltage shutdown information to mobile phone, user of service's shelter compressor are reminded to break
Electricity, battery need to charge.When voltage is lower than second threshold, although shelter compressor has been cut off power supply, control mainboard 3
Shelter temperature and location information can still be uploaded to cloud server 4, control mainboard 3 at least can be small with live line work 24
When, in case user grasps shelter service condition in time.In the present embodiment, first threshold and second threshold can be set as respectively
24.5V and 22V.
When battery 1 is under-voltage, when square cabin apparatus has shut down, Switching Power Supply 2, shelter access switch power supply at this moment can star
2 power supplies, charge mode.Alternating current is converted direct current by Switching Power Supply 2, on the one hand gives the electric power storage by liquid crystal Hall Coulomb meter 5
Pond 1 is charged, and is on the other hand powered to control mainboard 3, to guarantee that shelter is safely and steadily run.Therefore, shelter utilizes Internet of Things
Technology makes equipment end and cloud server that can realize real time inspection battery under the total tune of shelter power-supply management system
Service condition realizes long-range monitoring, achievees the purpose that controlling power supply provides burning voltage.
Battery power management system includes battery parameter sampling module 26, state-of-charge estimation block 27, active equalization control
Molding block 28, battery failures diagnostic module 29, battery thermal management control module 210.
Battery 1 is connected by more piece single battery and is formed.Battery parameter sampling module 26 includes battery monitor, for adopting
All kinds of parameters of set battery, comprising: monomer battery voltage, single battery temperature, whole group cell voltage and whole group battery current.Battery
Parameter sampling is the core of battery management system, SOC(state-of-charge) estimation and the control of equal balance system be all with electricity
Based on the sampled data of pond parameter.Shelter user not only can real time inspection information of voltage beyond the clouds, can also be upper
Machine checks more detailed battery parameter.This all relies on the battery sampling module of battery itself.
The primary structure of battery parameter sampling module 26 acquires electric current, LTC6804-2 including the use of high precision sampling resistance
Chip collection voltages, temperature sensors of high precision temperature collection.High precision sampling resistance is connected in major loop, due to series connection
Resistance affects the electric current of major loop, and actually measured electric current has certain error, in order to which error is reduced to minimum, uses
Very small resistance, resistance value are 0.0001 ohm, due to the linear correlation of voltage and current, measure the voltage at series resistance both ends
Electric current can be extrapolated.It due to the voltage very little at sampling resistor both ends, cannot be acquired by processor, so by this signal difference
Output finally calculates sample rate current by processor analysis to processor after common mode amplifier amplification.
Wherein, single LTC6804-2 chip can at most measure the voltage of concatenated 12 section single battery.Measurement accuracy is very
Height, overall error only have 1.2mV, and measuring speed is also very fast, and the time only needs 290uS, has been internally integrated with programmable frequency
16 increment accumulation type ADC of three rank noise filters.And it has been internally integrated isoSPI interface, using sin-gle twisted pair can
It is transmitted instead of SPI, twisted pair electromagnetic interference susceptibility is very low, so anti-interference ability is more reinforced when transmitting data.
There are four address bits for LTC6804-2 chip, each chip can be parallel to processor, processor can at most differentiate 16 by addressing
A sampling A/D chip, by the time of addressed processors process instruction in parallel than the time needed for daisy chained serial connection process instruction
It is shorter, accelerate the speed of processor processes data.Certainly, two voltage sample chips are only needed in the present invention.The acquisition of temperature is
Using high precision small sensor.Electric current, total voltage sampling period can be set as 20ms, the sampling period of temperature is 16s,
Sampling period be it is optimizable, future can according to need redesign.Moment grasps present battery detail parameters, is conducive to
Electrolytic cell service performance, and help is provided for the subsequent Continuous optimization to battery, so that most permanent effectively use battery, save
Resource.
State-of-charge estimation block 27 is used to calculate the ratio of the remaining capacity of battery.In host computer or display screen display
Battery dump energy ratio.State-of-charge estimation is carried out using Kalman filtering method, than the electrical measurement of liquid crystal Hall Coulomb meter
Accuracy is higher.The Ah counting method of liquid crystal Hall Coulomb meter is directly integrated to the time to output electric current, needs one
Accurately initial SOC value, and practical accurately SOC value hardly results in, since the error that initial value generates can be filled with lithium battery
The passage accumulation of discharge time is gone down, and the precision of measurement can be thus reduced.But Kalman filtering method is by previous moment
Value predicts the value of subsequent time, and is compensated by observation to predicted value, is estimated by the least square to error variance
Meter is to determine compensation weighted value.It is very insensitive to initial value, and convergence is relatively good, with iterations going on, value
It can move closer to true value.By more accurately measuring battery dump energy, monitoring of the user by host computer is allowed, more accurately
Grasp shelter battery service condition.To guarantee the stability of power supply power supply.
Battery 1 is connected by more piece single battery and is formed, due to monomer material, technique or the unequal some factors of charging,
Cause the energy of any one single battery all may be higher or lower, thus when the energy of a single battery is higher it
Energy can be produced and give other batteries, when single battery energy is lower, it can also obtain energy from other batteries.It is this
The mutual conversion of energy realizes that the composition of active equalization module is mainly LTC3300-1 core by active equalization control module 28
Piece, battery monitor and MCU, the equalization algorithm of equal balance system relies on the estimation and sampling system of SOC, using LTC3300-1
Chip carries out Balance route.LTC3300-1 is suitable for carrying out the battery pack of multiple batteries the two-way active based on transformer flat
Weighing apparatus, the device are integrated with built in all relevant gate driving circuits, high accuracy battery sensing, fault detection circuit and a band
The firm serial line interface of WatchDog Timer.The framework that LTC3300-1 chip is realized is bi-directional synchronization inverse-excitation type, each
LTC3300-1 balance chip can at most connect 6 single batteries, include 6 independent synchronous flyback controllers, 8 section monomers
Battery can carry out Balance route using two LTC3300-1 chips.Its balanced operation is sent by SPI interface by MCU and is ordered
Controlled, i.e. MCU according to respectively saved in collected battery pack voltage swing with certain equalization algorithm control particular transducer work
Make in (time, direction), to realize the electric voltage equalization of entire battery pack.Active equalization circuit, with general common passive balanced phase
The utilization rate of specific energy is higher.If the energy of each single battery can obtain sufficient utilization as far as possible, the use to battery is improved
There is great help in service life, this also allows the use of shelter can be more longlasting, because entire, shelter is most important, is easiest to the portion of damage
Part is exactly battery, and the service life of battery directly determines the practical efficiency of shelter.
Battery parameter can be understood in more detail by the dual power supply management system of battery itself, do not needed most importantly
There is network, cloud platform has biggish help to mobile subscriber to the monitoring of voltage, and mobile subscriber can check at any time by mobile phone
The voltage status of battery.In the case where no network, user shines in the host computer display screen or LED(communicated with battery
Diode) on display screen it can be observed that more detailed battery parameter.Host computer can also be arranged overcharge, over-discharge, overcurrent, mistake
Temperature, the parameter threshold for owing temperature.When there are above-mentioned abnormal conditions, host computer or display screen will appear alarm early warning and used with reminding
Person.
The parameters such as electric current, voltage, temperature when the record battery work in real time of battery failures diagnostic module 29, and these are joined
Number passes through connection host computer or the remote monitoring platform based on server, electric current, voltage when human observer works according to battery, temperature
Parameter is spent, the operating status of battery is diagnosed.Find that battery exception and breakdown judge have not the Sustainable and highly-efficient use of shelter in advance
Big help.This is for logistics cold chain shelter with the meaning of milestone.
Battery thermal management control module 210 compared with given threshold, controls heating module according to difference according to battery temperature
Or refrigerating module is heated up or is cooled down to battery, to prevent excess temperature and owe the abnormal conditions of temperature.Battery temperature adjusting is arrived
In suitable working range, to extend the service life of battery, guarantee shelter stable operation.Fig. 4 is battery power management system
The hardware structural diagram of system.
Both the above dual power supply management system makes battery be monitored, be protected to the greatest extent with equipment end beyond the clouds respectively
With utilization.Sampled voltage can be uploaded cloud server by the whole dual power supply management system of equipment shelter, convenient for users to
Any place for having network is by mobile phone access server, to grasp the voltage status of battery, plays a fabulous prevention and makees
With.The management system of power supply itself can by more detailed battery parameter by with Hostlink in display screen display, side
Just the user on equipment periphery checks detail parameters at any time, parameter information can be also analyzed in advance, to diagnose battery health in advance
Situation.Battery detail parameters also upload server can be realized to real remote technical support system.In this way, shelter is really realized
Comprehensive, intelligentized power management.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or modification, therefore all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (8)
1. a kind of dual power supply management system of mobile cold chain shelter, which is characterized in that the shelter including being electrically connected battery
Power-supply management system and battery power management system, the shelter power-supply management system include Switching Power Supply, control mainboard, cloud
Server and liquid crystal Hall Coulomb meter；
The battery is powered by the liquid crystal Hall Coulomb meter to the control mainboard；
The liquid crystal Hall Coulomb meter monitors the electricity of the battery；
Alternating current is converted to direct current by the Switching Power Supply, is on the one hand filled by the liquid crystal Hall Coulomb meter to the battery
On the other hand electricity is powered to the control mainboard；
The control mainboard obtains the sampled voltage of the battery by the liquid crystal Hall Coulomb meter, and is transmitted to the cloud
Server；
Sampled voltage compared with preset threshold, is sent under-voltage information to predetermined mobile phone according to comparison result by the cloud server
User.
2. the dual power supply management system of mobile cold chain shelter according to claim 1, which is characterized in that the control mainboard
It is after the motherboard hardware circuit is sampled by electric resistance partial pressure, sampled voltage is defeated including motherboard hardware circuit and mainboard processor
Mainboard processor is given, sampled voltage is uploaded cloud server by mainboard processor.
3. the dual power supply management system of mobile cold chain shelter according to claim 1, which is characterized in that the default threshold
Value includes first threshold and second threshold, and first threshold is the voltage value that brownout needs to charge, and second threshold is voltage mistake
Low battery will exhaust, and mainboard has been turned off the voltage value of shelter compressor power supply；When sampled voltage is lower than first threshold, cloud clothes
Business device sends under-voltage information to mobile phone；When sampled voltage is lower than second threshold, the control mainboard cutting shelter compressor power supply,
The cloud server sends under-voltage shutdown information to mobile phone.
4. the dual power supply management system of mobile cold chain shelter according to claim 1, which is characterized in that the battery supply
Management system includes:
For acquiring the battery parameter sampling module of all kinds of parameters of battery；
For calculating the state-of-charge estimation block of the ratio of the remaining capacity of battery；
Active equalization control module for energy between balanced each single battery；
The battery failures diagnostic module of battery failures is diagnosed according to battery parameter；And
The battery thermal management control module for cooling down to battery or heating up according to battery temperature.
5. the dual power supply management system of mobile cold chain shelter according to claim 4, which is characterized in that the battery parameter
The battery parameter of sampling module acquisition includes: monomer battery voltage, single battery temperature, whole group cell voltage and whole group battery electricity
Stream.
6. the dual power supply management system of mobile cold chain shelter according to claim 4, which is characterized in that the state-of-charge
Estimation block carries out state-of-charge estimation using Kalman filtering method.
7. the dual power supply management system of mobile cold chain shelter according to claim 4, which is characterized in that the battery failures
Diagnostic module by connection host computer or the remote monitoring platform based on server, the host computer or remote monitoring platform according to
Electric current, voltage, temperature parameter when battery works, diagnose the operating status of battery.
8. the dual power supply management system of mobile cold chain shelter according to claim 7, which is characterized in that the battery failures
Diagnostic module compared with given threshold, controls heating module or refrigerating module according to difference and carries out to battery according to battery temperature
Heating or cooling.
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| CN112910075A (en) * | 2021-01-21 | 2021-06-04 | 合肥美的智能科技有限公司 | Power failure prompting method and device, retail device and readable storage medium |
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