CN111163119A - Marine fridge remote monitering system - Google Patents
Marine fridge remote monitering system Download PDFInfo
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- CN111163119A CN111163119A CN201811322807.1A CN201811322807A CN111163119A CN 111163119 A CN111163119 A CN 111163119A CN 201811322807 A CN201811322807 A CN 201811322807A CN 111163119 A CN111163119 A CN 111163119A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 238000005057 refrigeration Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 235000013622 meat product Nutrition 0.000 description 2
- 235000014102 seafood Nutrition 0.000 description 2
- 229960005486 vaccine Drugs 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Aviation & Aerospace Engineering (AREA)
- Astronomy & Astrophysics (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a ship refrigerator remote monitoring system, which comprises a refrigerator data acquisition and control part, a data transmission part, a user control terminal part and a server, wherein the refrigerator data acquisition and control part is used for acquiring and controlling the refrigerator data; the refrigeration box data acquisition and control part comprises an integrated controller, a data line and an acquisition terminal, wherein the integrated controller simultaneously monitors data of multiple paths of refrigeration boxes and can remotely control the opening and closing of the refrigeration boxes, and the acquisition terminal is connected with the integrated controller through the data line; the data transmission part communicates with the user control terminal part in a wireless transmission mode; each ship is provided with a plurality of centralized controllers; and each ship is provided with a data transmission controller, and the data transmission controller is used for receiving data of all the centralized controllers. The ship in operation is monitored by adopting a data communication mode of the GPS and the satellite wireless communication module, so that the accurate position of the ship and the real-time data of the refrigerating box can be effectively monitored, the transportation management is facilitated, and the monitoring accuracy is improved.
Description
Technical Field
The invention belongs to the field of a remote control system of a refrigerating box, and particularly relates to a remote monitoring system of a refrigerating box for a ship.
Background
The cold storage logistics classification mainly classifies transported goods according to temperature requirements, wherein fresh-keeping goods such as vegetables and fresh flowers, fruits, fresh-keeping vaccines, fresh and live aquatic products and electronic components generally have the temperature requirement of 2-8 ℃, and cold fresh goods such as acid-removing meat products, river seafood products, bean products, vaccine products, medical waste ready for transportation, chocolates and the like. The temperature requirement is generally between 0 ℃ and-5 ℃, and the temperature requirement for freezing articles such as quick-frozen food, quick-frozen seafood fresh products, frozen meat products and the like is generally between-10 ℃ and-18 ℃. Deep-frozen products such as high-grade ice cream, high-risk products and high-grade bread viable bacteria yeast dough generally have the temperature requirement of between 20 ℃ below zero and 45 ℃ below zero.
There are two main categories of refrigerated transport on water, one is a temperature controlled container and the other is a refrigerated ship.
Firstly, a refrigerated container: the compressor is driven by electricity, which is supplied by a generator on board the vessel or by a portable generator. When the containers arrive at the quay they are transferred to the chassis, which are typically equipped with generator sets, as mentioned above. Thus, the refrigerated container mounted on the chassis can be towed by the tow head like a trailer and transported on land.
II, a refrigerated ship: the cargo compartment is a refrigeration compartment and is usually divided into a plurality of compartments, each compartment is an independent closed cargo space, the compartment walls and the compartment doors are airtight and are covered with thermal insulation materials such as foam plastics, aluminum plate polymers and the like, so that adjacent compartments are not mutually thermally conductive, and different requirements of different cargos on temperature are met. The height between the upper deck and the lower deck or between the deck and the bottom of the refrigerated chamber is smaller than that of other cargo ships, so that the cargo is prevented from being piled up too high to crush the lower cargo. The refrigerator ship is provided with a refrigerating device which comprises a refrigerating unit and various pipelines. The refrigeration unit generally consists of a refrigeration compressor, a drive motor and a condenser.
Generally, water transportation needs a long time, particularly cross-water transportation, the requirement on the environment for transporting refrigerated goods to be kept is high, the refrigerating box is basically monitored in the refrigerating process by adopting a manual patrol inspection mode at present, the ship is basically patrolled to the destination by mainly manually at regular time, and the refrigerating state is difficult to effectively monitor at the starting place or the destination after starting.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a fridge remote monitering system for ship has solved the problem that water route transportation refrigerating system does not have effectual remote monitering system among the prior art.
The invention adopts the following technical scheme for solving the technical problems:
a ship refrigeration box remote monitoring system comprises a refrigeration box data acquisition and control part, a data transmission part, a user control terminal part and a server; the refrigeration box data acquisition and control part comprises an integrated controller, a data line and an acquisition terminal, wherein the integrated controller provides a multi-channel terminal communication interface and a voltage control interface, monitors data of the multi-channel refrigeration box and can remotely control the opening and closing of the refrigeration box, and the acquisition terminal is provided with a data interface matched with the refrigeration box and is connected with the integrated controller through the data line; the data transmission part communicates with the user control terminal part in a wireless transmission mode; each ship is provided with a plurality of centralized controllers, each centralized controller has a unique ID number, and any two centralized controllers can mutually forward data; and each ship is provided with a data transmission controller, and the data transmission controller is used for receiving data of all the centralized controllers and transmitting the collected data to a server through a GPS and satellite wireless communication module.
The user control terminal part comprises a display interface, a control interface, a keyboard input device and an alarm device, wherein the display interface is used for displaying the storage state of the refrigerating box, the control interface is used for controlling the centralized controller, the keyboard input device is used for inputting setting parameters and control data, and the alarm device is used for sending alarm information; the server stores and backups the data and the setting parameters of the refrigerating box.
The centralized controller comprises a box body, a central processing module and a power supply processing module, wherein the central processing module and the power supply processing module are arranged in the box body; the central processing module comprises a control circuit and a wiring terminal which are arranged on a mainboard, and a communication interface which is arranged on a side panel of the box body; the power supply processing module processes the power supply and outputs the power supply to the mainboard of the central processing module.
And 9 or 12 communication interfaces are respectively arranged on two opposite side panels of the box body.
The collecting terminal can collect the data of the freezers of TK, Carrier, Star Cool and DK four manufacturers.
At least one of Zigbee, optical fiber and Ethernet interface is adopted for local area network data transmission on the ship.
The collection terminal is provided with a five-core joint or a three-core joint matched with the refrigerating box.
The centralized controller adopts a 32-bit ARM processor.
The collecting terminal collects information of the refrigerator, such as the number, position, temperature, humidity, voltage and current.
The alarm device comprises a display alarm and an acousto-optic alarm, the display alarm is displayed through colors on a display screen, and the acousto-optic alarm is sent out through an external sound and light emitting device.
Compared with the prior art, the invention has the following beneficial effects:
1. the system consists of two parts of software and hardware, background software runs in a special server and has the functions of data acquisition, storage, backup, inquiry, alarm, remote control, report generation and the like, a software framework adopts a B/S structure, and any computer of a network can realize corresponding operation as long as an authorized user can realize the corresponding operation according to the authority granted by the authorized user.
2. The system can remotely monitor the real-time data of the refrigerating box for the ship in operation, timely master and process the problems in operation and timely feed back the dynamic data of the operation.
3. When the refrigerator is connected to the equipment, the system can immediately identify the information of the type, the box position, the box number, the connection time and the like of the refrigerator and store the information in a system database for subsequent inquiry.
4. The ship in operation is monitored by adopting a data communication mode of the GPS and the satellite wireless communication module, the accurate position of the ship and the real-time data of the cold closet on the ship can be effectively monitored, the transportation management is facilitated, and the monitoring accuracy is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of an 18-port centralized controller according to the present invention.
Fig. 2 is a schematic structural diagram of a 24-port centralized controller according to the present invention.
FIG. 3 is a block diagram of the system control of the present invention.
Wherein, the labels in the figure are: 1-a centralized controller; 2-side panel; 3-interface; 4, a main board; 5-control circuit area; 6-a wiring area; 7-a connecting terminal; 8, a power supply processing module; 9-set screw.
Detailed Description
The structure and operation of the present invention will be further described with reference to the accompanying drawings.
A ship refrigeration box remote monitoring system comprises a refrigeration box data acquisition and control part, a data transmission part, a user control terminal part and a server; the refrigeration box data acquisition and control part comprises an integrated controller, a data line and an acquisition terminal, wherein the integrated controller provides a multi-channel terminal communication interface and a voltage control interface, monitors data of the multi-channel refrigeration box and can remotely control the opening and closing of the refrigeration box, and the acquisition terminal is provided with a data interface matched with the refrigeration box and is connected with the integrated controller through the data line; the data transmission part communicates with the user control terminal part in a wireless transmission mode; each ship is provided with a plurality of centralized controllers, each centralized controller has a unique ID number, and any two centralized controllers can mutually forward data; and each ship is provided with a data transmission controller, and the data transmission controller is used for receiving data of all the centralized controllers and transmitting the collected data to a server through a GPS and satellite wireless communication module.
In the first embodiment, as shown in fig. 1:
a ship refrigeration box remote monitoring system comprises a refrigeration box data acquisition and control part, a data transmission part, a user control terminal part and a server; the refrigerating box data acquisition and control part comprises an integrated controller 1, a data line and an acquisition terminal, wherein the integrated controller 1 comprises a box body, and a central processing module and a power supply processing module 8 which are arranged in the box body; the central processing module comprises a control circuit area 5 and a wiring area 6 which are arranged on a mainboard 4, and a plurality of interfaces 3 which are arranged on side panels 2 of the box body, wherein each interface 3 integrates a terminal communication interface and a voltage control interface, simultaneously monitors data of a plurality of paths of refrigerating boxes and can remotely control the opening and closing of the refrigerating boxes, and nine interfaces 3 are respectively arranged on two opposite side panels 2 of the box body in the embodiment; the control circuit area 5 is used for welding a control circuit, and the wiring area 6 is used for welding a wiring terminal 7; the power supply processing module processes the power supply and outputs the power supply to the mainboard 4 of the central processing module, and the mainboard 4 is fixed at the bottom of the box body through a positioning screw 9.
The data transmission part communicates with the user control terminal part in a wireless transmission mode; each ship is provided with a plurality of centralized controllers, each centralized controller has a unique ID number, and any two centralized controllers can mutually forward data; and each ship is provided with a data transmission controller, and the data transmission controller is used for receiving data of all the centralized controllers and transmitting the collected data to a server through a GPS and satellite wireless communication module.
The user control terminal part comprises a display interface, a control interface, a keyboard input device and an alarm device, wherein the display interface is used for displaying the storage state of the refrigerating box, the control interface is used for controlling the centralized controller, the keyboard input device is used for inputting setting parameters and control data, and the alarm device is used for sending alarm information; the server stores and backups the data and the setting parameters of the refrigerating box.
The centralized controller comprises a box body, a central processing module and a power supply processing module, wherein the central processing module and the power supply processing module are arranged in the box body; the central processing module comprises a control circuit and a wiring terminal which are arranged on a mainboard, and a communication interface which is arranged on a side panel of the box body; the power supply processing module processes the power supply and outputs the power supply to the mainboard of the central processing module.
In the second embodiment, as shown in fig. 2:
the structure of this embodiment is similar to that of the first embodiment, except that 12 communication interfaces are respectively arranged on two opposite side panels of the box body of this embodiment.
The collecting terminal can collect the data of the freezers of TK, Carrier, Star Cool and DK four manufacturers.
At least one of Zigbee, optical fiber and Ethernet interface is adopted for local area network data transmission on the ship.
The collection terminal is provided with a five-core joint or a three-core joint matched with the refrigerating box.
The centralized controller adopts a 32-bit ARM processor.
The collecting terminal collects information of the refrigerator, such as the number, position, temperature, humidity, voltage and current.
The alarm device comprises a display alarm and an acousto-optic alarm, the display alarm is displayed through colors on a display screen, and the acousto-optic alarm is sent out through an external sound and light emitting device.
The control of the system is shown in fig. 3, and the specific working principle and working process are as follows:
the data acquisition and control system of the refrigerated container is composed of software and hardware, background software runs in a special server and has the functions of data acquisition, storage, backup, query, alarm, remote control, report generation and the like, a software framework adopts a B/S structure, and corresponding operation can be realized on any computer of a network by an authorized user according to the authority granted by the authorized user.
The hardware part consists of an integrated controller and a parameter acquisition terminal. The integrated controller is controlled by a high-performance ARM 32-bit MCU, provides a multi-path terminal communication interface and a multi-path voltage control interface, can monitor data of a plurality of paths of cold boxes simultaneously and can remotely control the starting and the closing of the cold boxes; the equipment provides GPS and satellite wireless communication to realize remote data transmission and control, and realizes the transmission of local area network data through Zigbee, optical fibers, Ethernet interfaces and the like. Each ship is provided with a data transmission controller for realizing data transmission with a remote server, the data transmission controller receives data of all the integrated controllers on the ship and transmits the data after processing, the integrated controllers on the ship and the data transmission controller are transmitted in a wireless or wired mode, the wireless mode can adopt one-point-to-multiple-point transmission and can also adopt relay mode transmission, namely, each integrated controller not only can send own data, but also can forward data of other integrated controllers, and the correct transmission rate of the data is ensured.
The background monitoring equipment is generally a server, can backup the received data of the refrigerating box and provides the functions of real-time display, alarm, inquiry, setting, power on and power off and the like. The manager can clearly and intuitively know the storage condition of the refrigerating box and the running state of the refrigerating box.
The power supply of the refrigerating box adopts a steamship power supply line, the refrigerating box controller is controlled by the integrated controller to control the power distribution cabinet to provide power for the refrigerating box, and remote control is achieved.
The above example merely illustrates the solution as a specific example and is not limited to the operations described as examples, and the modifications made according to the solution belong to the field to which the solution relates.
Claims (10)
1. The utility model provides a fridge remote monitering system for ship which characterized in that: the refrigerator comprises a refrigerator data acquisition and control part, a data transmission part, a user control terminal part and a server; the refrigeration box data acquisition and control part comprises an integrated controller, a data line and an acquisition terminal, wherein the integrated controller provides a multi-channel terminal communication interface and a voltage control interface, monitors data of the multi-channel refrigeration box and can remotely control the opening and closing of the refrigeration box, and the acquisition terminal is provided with a data interface matched with the refrigeration box and is connected with the integrated controller through the data line; the data transmission part communicates with the user control terminal part in a wireless transmission mode; each ship is provided with a plurality of centralized controllers, each centralized controller has a unique ID number, and any two centralized controllers can mutually forward data; and each ship is provided with a data transmission controller, and the data transmission controller is used for receiving data of all the centralized controllers and transmitting the collected data to a server through a GPS and satellite wireless communication module.
2. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the user control terminal part comprises a display interface, a control interface, a keyboard input device and an alarm device, wherein the display interface is used for displaying the storage state of the refrigerating box, the control interface is used for controlling the centralized controller, the keyboard input device is used for inputting setting parameters and control data, and the alarm device is used for sending alarm information; the server stores and backups the data and the setting parameters of the refrigerating box.
3. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the centralized controller comprises a box body, a central processing module and a power supply processing module, wherein the central processing module and the power supply processing module are arranged in the box body; the central processing module comprises a control circuit and a wiring terminal which are arranged on a mainboard, and a communication interface which is arranged on a side panel of the box body; the power supply processing module processes the power supply and outputs the power supply to the mainboard of the central processing module.
4. The remote refrigerator monitoring system for ship as set forth in claim 3, wherein: and 9 or 12 communication interfaces are respectively arranged on two opposite side panels of the box body.
5. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the collecting terminal can collect the data of the freezers of TK, Carrier, Star Cool and DK four manufacturers.
6. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: at least one of Zigbee, optical fiber and Ethernet interface is adopted for local area network data transmission on the ship.
7. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the collection terminal is provided with a five-core joint or a three-core joint matched with the refrigerating box.
8. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the centralized controller adopts a 32-bit ARM processor.
9. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the collecting terminal collects information of the refrigerator, such as the number, position, temperature, humidity, voltage and current.
10. The remote refrigerator monitoring system for ship as set forth in claim 1, wherein: the alarm device comprises a display alarm and an acousto-optic alarm, the display alarm is displayed through colors on a display screen, and the acousto-optic alarm is sent out through an external sound and light emitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322807.1A CN111163119A (en) | 2018-11-08 | 2018-11-08 | Marine fridge remote monitering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322807.1A CN111163119A (en) | 2018-11-08 | 2018-11-08 | Marine fridge remote monitering system |
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| Publication Number | Publication Date |
|---|---|
| CN111163119A true CN111163119A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811322807.1A Pending CN111163119A (en) | 2018-11-08 | 2018-11-08 | Marine fridge remote monitering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200880A (en) * | 2021-12-07 | 2022-03-18 | 苏州迪芬德物联网科技有限公司 | Self-powered wireless monitoring system for refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300025A (en) * | 2015-11-26 | 2016-02-03 | 苏州迪芬德物联网科技有限公司 | Refrigerator monitoring system |
| CN105911945A (en) * | 2016-06-30 | 2016-08-31 | 上海海事大学 | Wired remote monitoring system and method for refrigerated container |
| CN107784819A (en) * | 2017-11-23 | 2018-03-09 | 苏州迪芬德物联网科技有限公司 | A kind of refrigerating box electric power carrier wave remote monitoring system |
| CN108563269A (en) * | 2018-04-11 | 2018-09-21 | 广州中国科学院沈阳自动化研究所分所 | A kind of full ship powered balance control system of refrigerated container ship and control method |
-
2018
- 2018-11-08 CN CN201811322807.1A patent/CN111163119A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300025A (en) * | 2015-11-26 | 2016-02-03 | 苏州迪芬德物联网科技有限公司 | Refrigerator monitoring system |
| CN105911945A (en) * | 2016-06-30 | 2016-08-31 | 上海海事大学 | Wired remote monitoring system and method for refrigerated container |
| CN107784819A (en) * | 2017-11-23 | 2018-03-09 | 苏州迪芬德物联网科技有限公司 | A kind of refrigerating box electric power carrier wave remote monitoring system |
| CN108563269A (en) * | 2018-04-11 | 2018-09-21 | 广州中国科学院沈阳自动化研究所分所 | A kind of full ship powered balance control system of refrigerated container ship and control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200880A (en) * | 2021-12-07 | 2022-03-18 | 苏州迪芬德物联网科技有限公司 | Self-powered wireless monitoring system for refrigerator |
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