CN206920874U - A kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things - Google Patents
A kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things Download PDFInfo
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- CN206920874U CN206920874U CN201720704691.2U CN201720704691U CN206920874U CN 206920874 U CN206920874 U CN 206920874U CN 201720704691 U CN201720704691 U CN 201720704691U CN 206920874 U CN206920874 U CN 206920874U
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Abstract
The utility model provides a kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things, including master controller, sensing unit, cool-bag, base station, server and remote terminal.The utility model is for this crucial intermediate links of agricultural product cold chain transportation, the problem of needing to carry out complete monitoring to the external environment condition residing for it, master controller is have developed using technology of Internet of things, the positioning in real time of Cold Chain Logistics car and the real-time monitoring of environmental information can be completed, remote terminal can monitor cold chain information in real time, the real-time monitoring of logistics links environmental information is completed, for a part for agricultural product information retrospect.Using EnOcean energy gathering technique and EnOcean wireless communication technologys, the power supply and main controller charging of sensor are realized, it is low in energy consumption without deployment signal line, power line, flexible arrangement, it is energy-saving.
Description
Technical field
Logistics monitoring field is the utility model is related to, is related to a kind of vehicle-mounted reality of passive and wireless cold chain transportation based on Internet of Things
When monitoring system, especially suitable for requiring transit link higher occasion, such as cold chain transportation car, fresh and live agricultural product, medicine
Deng transport vehicle.
Background technology
With the fast development of China's economy and the continuous improvement of Living consumption, the consumption idea of people is from traditional
Variation, high-speeding of the unification to the modern times change, and not only require fresh fresh agricultural products, hygienic, safety, nutrition, but also
It is required that numerous in variety, dispatching is rapid timely.Cold Chain Logistics refer to producing, process, store, transport, selling, until final consumption
In preceding links, perishable, fresh food is remained at into defined low temperature environment, ensures food with optimal logistics means
Quality, a kind of logistics system of food loss is reduced, is in order to ensure fresh food is safely sent to consumption from production source
A kind of essential safeguard implemented in person's hand.
At present, the year demand of China's fresh agricultural products is about 400,000,000 tons, but due to the born perishable characteristic of agricultural product, and thing
Stream dispatching is generally carried out under normal temperature logistics, causes to be lost in logistics progress excessive.Fresh product is from the producer to finally disappearing
During the person of expense, time for having 80% is that to have 20% loss on logistics transportation occurred in intermediate links.According to correlation
Data shows that, because crop loss rate is more than 20% caused by inappropriate production, transport, storage, direct economic loss is about
For 100,000,000,000 yuan.Therefore, it is also more and more obvious that the effectively demand of cold chain monitoring and tracing management how is carried out to fresh product.
These just promote distributing fresh agricultural products mode to trigger there occurs major transformation and driven the hurried heating of Cold Chain Logistics.
In cold chain transportation process, refrigerator carriage ambient condition determines the length of fresh agricultural products storage period and shelf life, such as
What monitoring refrigerator carriage ambient parameter accurate, in real time, inexpensive is to ensure the pass that fresh agricultural products cold chain transportation is smoothed out
Key.And fresh and alive logistics is generally adopted by having the carrier of refrigerator or similar safety cabinet etc to transport food, if often
The fresh and alive environment that loading space is tantamount to destroy food is opened, the acquisition of logistics information is received serious obstruction, and influence indirectly
The timely acquisition of logistics information, is unfavorable for Logistic Scheduling and grasps the information such as food state, geographical position in time.In addition, these
The medicine of the fresh and alive food of holding, agricultural product and the high-quality that are needed in system is dirty by environment unavoidably in multiple switching loading space
Dye, the reduction of hygienic quality likely result in hardly imaginable consequence.
Lorry scraps the time limit up to 15 years, with the fast development of technology of Internet of things, also has many original vehicles to be engaged in
Logistics works, and most refrigerator cars only have a warm area, are attacked with net purchase spring tide, and the retail vehicle for undertaking cold chain transportation is difficult
For the goods for the same temperature range that gathers together enough, it is necessary to wait the source of goods for a long time, it is rotten that the goods arrived first is easy for heating, it is necessary to enters
Row partition management.And for selecting the client of logistics provider, ensure that article is constantly in the state of temperature of requirement, it is accurate to grasp
Vehicle position information and ambient condition, the monitoring to whole link are highly desirable.
There is patent research as follows:A kind of multi-temperature district refrigerator van railway carriage or compartments of suitable cold chain part load logistics of ZL 201610189225.5,
It is to be changed in itself from car body, solves the function that same compartment includes a variety of warm areas, but temperature can not be supervised in real time
Control, warm area temperature, which is still fallen within, can not trace state.
A kind of fresh and alive logistics Internet of Things monitoring methods of ZL 201510162958.5, are by being installed on transport cases
RFID label tag, and need in stream line mount message harvester in transit, early stage, equipment investment was very big.
A kind of long-distance ice temperature On Transportaion of Live casees of ZL201510107378.6, simply car body and remote server use channel radio
Letter mode, specific sensor and controller are connected by iic bus with the A/D capture cards, and wired mode limits it and laid
Flexibility.
Therefore, in order to overcome problem present in fresh and alive logistics in the prior art, the intelligence degree of logistics net is lifted, is protected
Card food and medicine etc. is with lower O＆M cost and makes us more satisfied effect and is sent to destination, and the utility model proposes one
Passive and wireless cold chain transportation vehicle-mounted real-time monitoring system of the kind based on Internet of Things.
Utility model content
The utility model is for agricultural product cold chain transportation this crucial intermediate links, it is necessary to enter to the external environment condition residing for it
The problem of row complete monitoring.Car-mounted terminal master controller is have developed using technology of Internet of things, it is real-time that Cold Chain Logistics car can be completed
Positioning and the real-time monitoring of environmental information, remote terminal can monitor cold chain information in real time, complete logistics links environmental information
Real-time monitoring, for agricultural product information retrospect a part.And using the collection in transportation to small vibration energy, use
EnOcean wireless energy acquisition techniques, EnOcean wireless communication technologys, realize power supply and the main controller of sensor transmissions module
Charging, without deployment signal line, power line is energy-saving, flexible arrangement.
The utility model adopts the following technical scheme that realization：
A kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things, including car-mounted terminal master controller
101, sensing unit 103, cool-bag 104, base station 106, server 107 and remote terminal 108；Car-mounted terminal master controller
101 are connected with sensing unit 103, base station 106 respectively, and base station 106 and remote terminal 108 are connected with server 107 respectively；
Car-mounted terminal master controller 101 is put in wagon control room, sensing is set in the cool-bag 104 in car body
Unit 103, car-mounted terminal master controller 101 are communicated by EnOcean102 communication protocols with sensing unit 103；
Car-mounted terminal master controller 101 is communicated by wireless network 105 with base station 106；Information is stored in clothes by base station 106
It is engaged in device 107, is conducted interviews and monitoring server 107 by remote terminal 108.
The car-mounted terminal master controller 101 includes central processing unit 212, locating module 201, communication module 202, shows
Show module 203, control drive circuit 204, alarm module 205 of unpacking, ENOCEAN communication modules 207, USB power supply units 208,
Vibration energy collects module 209, energy conservation module 210, memory 211；
The central processing unit 212 is electric with locating module 201, communication module 202, display module 203, control driving respectively
Road 204, unpack alarm module 205, ENOCEAN communication modules 207, energy conservation module 210, memory 211 connect, can source capsule
Manage module 210 to collect module 209 with USB power supply units 208, vibration energy respectively and connect, ENOCEAN communication modules 207 are with passing
Sense unit 103 is connected, and locating module 201, communication module 202 are connected with base station 106 respectively.
The sensing unit includes Anneta module 301, SOC module 302, clock module 303, reseting module 304, electricity
Source module 305, temperature detecting module 306, Enocean energy acquisitions unit 307；
The voltage input end Vcc_Soc and ground terminal GND of the SOC module 302 and the voltage of power module 305
Output end Vcc and ground terminal GND is corresponding to be connected, and radiofrequency signal positive ends RF_P, the radio-frequency power of SOC module 302 increase
Beneficial voltage RX/TX and radiofrequency signal negative polarity RF_N radiofrequency signal positive ends RF_P, the radio frequency work(with Anneta module 301 respectively
Rate gain voltage end RX/TX and radiofrequency signal negative polarity end RF_N is corresponding to be connected, the RESET input of SOC module 302
Reset is connected with the reset output terminal Reset ends of reseting module 304, the input end of clock CLK and clock of SOC module 302
The output terminal of clock CLK connections of module 303, the AD ends of SOC module 302 and the signal wire of the device of temperature detecting module 306
Connection, the power pins of SOC module and the power pins of temperature detecting module respectively with power module 305 or Enocean
Energy acquisition unit 307 connects.
The central processing unit 212 is realized using core A RM Cortex-M series microprocessors STM32；Locating module
201 are positioned using GPS or the Big Dipper；Communication module 202 is realized using GPRS or 3G or 4G communication modules；Display module 203 is adopted
Use LCDs；Control drive circuit 204 to support the control signal output of multichannel, car can be easy to external control signal
Original refrigeration system Comprehensive Control uses；Alarm module 205 of unpacking then effectively prevent outside artificial disturbance, and can be reported
It is alert；ENOCEAN communication modules 207 realize the transmitting-receiving for the ENOCEAN signals launched sensing unit 103；USB power supply units 208
Vehicular power-bottle is connected, realizes uninterrupted power supply；Vibration energy collection module 209 has collected the shock energy in vehicle operation
Amount, realize that non-transformer is powered；Energy conservation module 210, realize the management and storage of energy；Memory 211 is completed to supervise in real time
The storage of information is controlled, is provided safeguard for information tracing；Car-mounted terminal master controller 101 passes through communication module 202 and base station 106
Communication, the conversion unit of protocol 206 in central processing unit 212 realize the parsing of ENOCEAN agreements and conversion and are processed into base station
The 106 receptible signals of communication of institute, the information received is reached server end in order to remotely access by base station 106.
Compared with prior art, the utility model has advantages below and beneficial effect：
The whole process of Cold Chain Logistics process is traced 1. realizing, realizes the complete monitoring of transportation environmental information.
2. Cold Chain Logistics car, narrow space, being not easy to connect up, the system need not arrange cable, and install simply, without changing
Original fare road is moved, the quick transformation to original haulage vehicle can be achieved.
3. the load that pair needs seal, using wireless communication technology, transfers out temperature signal, it is not required to open i.e. real
Show closed thermometric, realize the management of the subregion of car body.
4. mode (vibration energy collects module 209) is collected using EnOcean energy, by microvibration energy in transportation
Amount collection is got up, and shock energy is converted into electric energy；And it is energy-saving, the shock energy in haulage vehicle is made full use of, is sensor
Energy is provided with transport module.
Brief description of the drawings
Fig. 1 is the integrated stand composition of Tthe utility model system；
Fig. 2 is the structural representation of car-mounted terminal master controller in the utility model；
Fig. 3 is the structural representation (being powered by power supply) of the utility model sensing unit；
Fig. 4 is that the structural representation of the utility model sensing unit embodiment 2 (is supplied by Enocean energy acquisitions unit
Electricity)；
Fig. 5 is the workflow diagram of car-mounted terminal master controller；
Wherein, 101- car-mounted terminals master controller, 102-EnOcean communication protocols, 103- sensing units, 104- insulations
Container, 105- wireless networks, 106- base stations, 107- servers, 108- remote terminals；
201- locating modules, 202- communication modules, 203- display modules, 204- control drive circuits, 205-, which unpacks, to alarm
Module, 206- conversion unit of protocol, 207-EnOcean communication modules, 208-USB power supply units, 209- vibration energy collect mould
Block, 210- energy conservation modules, 211- memories；212- central processing units；
301- Anneta modules, 302-SOC chip modules, 303- clock modules, 304- reseting modules, 305- power modules,
306- temperature detecting modules, 307-EnOcean energy acquisition units.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.
Internet of Things is a kind of information technology, is exactly by various information sensing devices, any required monitoring of collection in real time, connects
Connect, the information of the various needs such as interactive object or process, thing and thing, thing and the communication of people are realized, so as to intelligentized progress
Identification, management and control.Realize the connection of people's any time, any place and any object；Allow the mankind with more smart
Thin and dynamic mode manages production and life, lifting people control real-time to physical world and accurate managerial ability, so as to realize
Most optimum distribution of resources and science intelligent decision.
Comprising 3 aspects, first, automatic sensing aspect (using the monitoring needs such as sensor, RFID concern physical message amount,
It is related to information Perception, collection, detection, analysis, processing), (how research is by the original of these data signals second, network transmission aspect
Beginning information carries out remote transmission, network insertion), third, information processing and application (remote control, application, management).
The multi-source information perception terminal being specifically mounted in first on Cold Chain Logistics car is, it is necessary to gather fresh and alive in good time
The external environment condition such as related important information such as temperature, humidity, time, residing address location residing for aquatic products, these information are led to
, will also be by public base station remote transmission extremely while crossing sensor and pass to this car car-mounted terminal master controller and be locally stored
Central server, realize the double copies of the existing ground terminal of initial data and remote port.
Next to that communication system, is disposed using the EnOcean wireless communication technologys for supporting that energy is collected, to remote in logistic car
Public GPRS, 3G, 4G mobile base station of journey server.
Besides server, using terminal remotely read and monitor by Internet of Things.
As shown in figure 1, be system architecture diagram, including car-mounted terminal master controller 101, sensing unit 103, cool-bag
104, base station 106, server 107 and remote terminal 108.
Car-mounted terminal master controller 101 is put in wagon control room, arranges sensing unit as needed in car body
103, car-mounted terminal master controller 101 is communicated by EnOcean communication protocols 102 and sensing unit 103.Because EnOcean exists
30 meters of indoor distances, it may not be necessary to using repeater, directly communicated with main controller, it is simple in construction, and sensing unit 103 can be with
Using passive wireless technologies, it is not necessary to be equipped with battery cables and communication line, lay the guarantor that any sealing flexibly, can be placed into
In warm container 104, so as to realize the zoning monitoring management to compartment.
Car-mounted terminal master controller 101 is communicated by wireless network 105 with base station 106.And information is stored in server
In 107, conduct interviews and monitor by remote terminal 108.
Base station 106 can be GPRS, 3G, 4G mobile base station.
The system employs EnOcean agreements, and on the one hand low in energy consumption, another aspect EnOcean can support energy acquisition
Function, its energy acquisition module can gather energy caused by surrounding environment, such as mechanical energy, indoor luminous energy, temperature difference
Energy etc..These energy are after processing, for supplying the wireless communication module of EnOcean super low-power consumptions, realize real
No data line, Wireless, the communication system of no battery.
Car-mounted terminal master controller is the core of whole system, as shown in Fig. 2 including central processing unit 212, locating module
201, communication module 202, display module 203, drive circuit 204 is controlled, alarm module 205 of unpacking, EnOcean communication modules
207, USB power supply units 208, vibration energy collect module 209, energy conservation module 210, memory 211.Central processing unit
212, core A RM Cortex-M series microprocessors such as stm32 can be used.Locating module 201 uses GPS or the Big Dipper.It is logical
Interrogate module 202 and use GPRS, 3G, 4G communication module.Display module 203 can configure LCDs.Control drive circuit
204 support the control signal output of multichannel, with external control signal the original refrigeration system Comprehensive Control of vehicle can be easy to make
With.Add the control function of monitoring system.Unpacking, (lid monitors out alarm module 205 by press against a point, shake-up of uncapping
Measure pass) outside artificial disturbance is then effectively prevent, and can be alarmed.ENOCEAN communication modules 207 are realized to sensing unit
The transmitting-receiving of the ENOCEAN signals of 103 transmittings.USB power supply units 208 connect vehicular power-bottle, realize uninterrupted power supply.Vibrations
Energy is collected module 209 (ENOCEAN energy acquisition modules, shock energy is converted into electric energy) and collected in vehicle operation
Vibration energy, realize non-transformer power.Energy conservation module 210 (mainly realizing voltage stabilizing function) realize the management of energy with
Storage.Memory 211 completes the storage of real-time monitoring information, is provided safeguard for information tracing.Car-mounted terminal master controller 101 is logical
Cross communication module 202 to communicate with base station 106, conversion unit of protocol 206 is realized the parsing of ENOCEAN agreements and conversion and handled
Into the receptible signal of communication of the institute of base station 106, information is reached into server end in order to remotely access.
The constructive embodiment 1 of sensing unit 103 using SOC as shown in figure 3, mainly realized, simple in construction, power consumption
It is low.The voltage input end Vcc_Soc and ground terminal GND of SOC module 302 and the voltage output end Vcc of power module 305 and
Ground terminal GND is corresponding to be connected, radiofrequency signal positive ends RF_P, the radio-frequency power gain voltage RX/TX of SOC module 302
With radiofrequency signal negative polarity RF_N the radiofrequency signal positive ends RF_P with Anneta module 301, radio-frequency power gain voltage respectively
Hold RX/TX and radiofrequency signal negative polarity end RF_N is corresponding to connect, the RESET input Reset of SOC module 302 is with resetting mould
The reset output terminal Reset ends connection of block 304, the input end of clock CLK of SOC module 302 and clock module 303 when
The CLK connections of clock output end.The AD ends of SOC module 302 connect with the signal wire of the device of temperature detection 306, power supply and power supply
Module is connected, very low using EnOcean wireless communication technologys, power consumption.
The constructive embodiment 2 of sensing unit 103 is not as shown in figure 4, directly using power module 305 but use
EnOcean energy acquisitions unit 307, other structures are identical with Fig. 3, have been achieved in that without battery powered, non-maintaining.
Specific workflow waits ENOCEAN sensings to be received as shown in figure 5, the initialization of car-mounted terminal master controller
Device information, information is parsed after receiving, if temperature exceedes limit value, alarmed immediately, if opening auxiliary automatic control function then
Actively open respective execution mechanisms (being probably refrigeration system, air-conditioning etc. typically to original vehicle remoulding), while and store letter
Breath, if having arrived report cycle, show and reported data is to server, there is provided remote monitoring.
The system employs EnOcean agreements, and on the one hand low in energy consumption, another aspect EnOcean can support energy acquisition
Function, EnOcean energy acquisitions module can gather energy caused by surrounding environment, such as mechanical energy, indoor luminous energy, temperature
Energy of difference etc..These energy are after processing, real for supplying the EnOcean communication modules of EnOcean super low-power consumptions
Now real no data line, Wireless, the communication system of no battery.
Sensing unit detection temperature, by EnOcean wireless energies acquisition technique and wireless communication technology, by temperature information
It is aggregated into main controller, main controller uploads onto the server information end by GPRS/3G/4G networks.Collected using EnOcean energy
Technology, utilize the collection in transportation to small vibration energy, it is possible to achieve the supply of sensor and main controller electric energy, use
EnOcean wireless communication technologys, it is low in energy consumption, the power supply and main controller charging of sensor are realized, without deployment signal line, power supply
Line, energy-saving, flexible arrangement.
Claims (4)
- A kind of 1. vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things, it is characterised in that：Including vehicle-mounted end Hold master controller (101), sensing unit (103), cool-bag (104), base station (106), server (107) and remote terminal (108)；Car-mounted terminal master controller (101) is connected with sensing unit (103), base station (106) respectively, base station (106) and long-range Terminal (108) is connected with server (107) respectively；Car-mounted terminal master controller (101) is put in wagon control room, sensing is set in the cool-bag (104) in car body Unit (103), car-mounted terminal master controller (101) are communicated by EnOcean communication protocols (102) with sensing unit (103)；Car-mounted terminal master controller (101) is communicated by wireless network (105) with base station (106)；Base station (106) stores information In server (107), conducted interviews and monitoring server (107) by remote terminal (108).
- 2. a kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things according to claim 1, its It is characterised by：The car-mounted terminal master controller (101) includes central processing unit (212), locating module (201), communication module (202), display module (203), control drive circuit (204), alarm module (205) of unpacking, ENOCEAN communication modules (207), USB power supply units (208), vibration energy collect module (209), energy conservation module (210), memory (211)；The central processing unit (212) is driven with locating module (201), communication module (202), display module (203), control respectively Dynamic circuit (204), unpack alarm module (205), ENOCEAN communication modules (207), energy conservation module (210), memory (211) connecting, energy conservation module (210) collects module (209) connection with USB power supply units (208), vibration energy respectively, ENOCEAN communication modules (207) are connected with sensing unit (103), locating module (201), communication module (202) respectively with base station (106) connect.
- 3. a kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things according to claim 2, its It is characterised by：The sensing unit includes Anneta module (301), SOC module (302), clock module (303), reset mould Block (304), power module (305), temperature detecting module (306), Enocean energy acquisitions unit (307)；The voltage input end Vcc_Soc and ground terminal GND and power module (305) of the SOC module (302) voltage are defeated Go out to hold Vcc and ground terminal GND is corresponding to connect, radiofrequency signal positive ends RF_P, the radio-frequency power of SOC module (302) increase Beneficial voltage RX/TX and radiofrequency signal negative polarity RF_N radiofrequency signal positive ends RF_P, the radio frequencies with Anneta module (301) respectively Power gain voltage end RX/TX and radiofrequency signal negative polarity end RF_N is corresponding to be connected, the reset input of SOC module (302) End Reset is connected with the reset output terminal Reset ends of reseting module (304), the input end of clock CLK of SOC module (302) It is connected with the output terminal of clock CLK of clock module (303), the AD ends of SOC module (302) and temperature detecting module (306) Signal wire connection, the power pins of SOC module (302) and the power pins of temperature detecting module respectively with power module (305) or Enocean energy acquisitions unit (307) connects.
- 4. a kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things according to claim 3, its It is characterised by：The central processing unit (212) is realized using core A RM Cortex-M series microprocessors STM32；Positioning mould Block (201) is positioned using GPS or the Big Dipper；Communication module (202) is realized using GPRS or 3G or 4G communication modules；Display module (203) LCDs is used；Control drive circuit (204) to support the control signal output of multichannel, can be believed with external control Number, it is easy to the original refrigeration system Comprehensive Control of vehicle to use；Alarm module (205) of unpacking then effectively prevent outside artificial dry Disturb, and can be alarmed；ENOCEAN communication modules (207) realize the receipts of the ENOCEAN signals to sensing unit (103) transmitting Hair；USB power supply units (208) connect vehicular power-bottle, realize uninterrupted power supply；Vibration energy is collected module (209) and collected Vibration energy in vehicle operation, realize that non-transformer is powered；Energy conservation module (210) realizes the management of energy with depositing Storage；Memory (211) completes the storage of real-time monitoring information, is provided safeguard for information tracing；Car-mounted terminal master controller (101) Communicated by communication module (202) with base station (106), the conversion unit of protocol (206) in central processing unit (212) is realized The parsing and conversion of ENOCEAN agreements are simultaneously processed into the receptible signal of communication of base station (106) institute, and base station (106) will receive Information reach server end in order to remotely access.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065710A (en) * | 2017-06-16 | 2017-08-18 | 浙江科技学院 | A kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things |
| CN108827378A (en) * | 2018-05-28 | 2018-11-16 | 江苏理工学院 | A kind of cold chain vehicle remote monitoring system based on STM32 single-chip microcontroller |
| CN111044105A (en) * | 2019-12-31 | 2020-04-21 | 武汉工程大学 | Environmental data monitoring system and method applied to logistics vehicle |
-
2017
- 2017-06-16 CN CN201720704691.2U patent/CN206920874U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065710A (en) * | 2017-06-16 | 2017-08-18 | 浙江科技学院 | A kind of vehicle-mounted real-time monitoring system of passive and wireless cold chain transportation based on Internet of Things |
| CN108827378A (en) * | 2018-05-28 | 2018-11-16 | 江苏理工学院 | A kind of cold chain vehicle remote monitoring system based on STM32 single-chip microcontroller |
| CN111044105A (en) * | 2019-12-31 | 2020-04-21 | 武汉工程大学 | Environmental data monitoring system and method applied to logistics vehicle |
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