CN113692055A - Communication system, method and computer storage medium for on-board supervision of ocean-going transportation - Google Patents
Communication system, method and computer storage medium for on-board supervision of ocean-going transportation Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012806 monitoring device Methods 0.000 claims abstract description 48
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- 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
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Abstract
The present application relates to a communication system, method and computer storage medium for on-board supervision of ocean-going transportation. The communication system comprises ship-side control equipment and container-side monitoring equipment. The ship-side control apparatus includes: the system comprises a first positioning module configured to determine a current position of the vessel-side control device, and a first control module configured to determine that an operating frequency band of the wireless network should be switched from a first operating frequency band to a second operating frequency band based on the current position determined by the first positioning module. The container end monitoring device includes: a second control module configured to instruct a second communication module of the container-side monitoring device to switch from the first operating frequency band to a second operating frequency band in response to receiving the operating frequency band switching command.
Description
Technical Field
The present application relates to ocean-going transport, and more particularly to on-board supervision of ocean-going transport.
Background
Ocean shipping is often long in distance and time consuming, and due to the effects of disastrous weather, accidents and the like, the loss of the transported goods is often suffered, so that it is necessary to monitor ocean shipping. However, during ocean transport, the container internet of things for ocean transport monitoring cannot operate normally because of no signals of the mobile base station.
Existing solutions may include two broad categories of delayed transmission and network construction. In the delayed transmission scheme, the container internet of things is applied to data collection at sea and then temporarily stores the data in the container, and after a ship enters an offshore area, the information is transmitted to a data center server in a supplementing mode. The delayed transmission scheme cannot realize real-time monitoring in the ocean transportation process. In the network construction scheme, one of the alternatives is to install a satellite communication module at the data acquisition equipment end, and the equipment directly communicates with the satellite through the satellite communication module. However, the solution has the disadvantages of high equipment cost and high operation cost, so the solution is adopted only by the industry for certain special goods which have ultrahigh value and need real-time monitoring. Another network construction scheme may include deploying a base station of a mobile communication operator at the end of a ship, implementing coverage for LTE or like networks or implementing WiFi-based network coverage. However, this solution is also very costly to implement and difficult to maintain.
Therefore, there is a need for a technique that enables real-time overseas transport on-board at a lower cost.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
To overcome the above-mentioned deficiencies of the prior art, the present application provides a communication system, method and computer storage medium that enables real-time monitoring of shipping containers at a lower cost.
According to a first aspect of the present disclosure there is provided a communication system for on-board supervision of ocean-going transport, comprising: vessel-side control apparatus, comprising: a first positioning module configured to determine a current location of a vessel-side control device, a first communication module configured to communicate with a container-side monitoring device via a wireless network using a first operating frequency band, a first control module configured to determine that an operating frequency band of the wireless network should be switched from the first operating frequency band to a second operating frequency band based on the current location determined by the first positioning module, and to send an operating frequency band switching instruction to the container-side monitoring device via the first communication module, wherein the first positioning module, the first communication module, and the first control module are coupled in the vessel-side control device via a wired connection; a container-side monitoring device communicatively coupled with a vessel-side control device via a wireless network, comprising: a second communication module configured to communicate with the vessel-side control device using the first operating band via the wireless communication network, a second control module configured to instruct the second communication module to execute an operating band switch command in response to the operating band switch command received from the vessel-side control device, wherein the second communication module and the second control module are coupled in the container-side monitoring device via a wired connection.
According to a second aspect of the present disclosure, a method of communication for on-board supervision of ocean-going transport is provided. The method is performed by a vessel-side control device that communicates with a container-side monitoring device via a wireless network using a first frequency band. The method comprises the following steps: determining a current position of the ship; determining that an operating frequency band of a wireless network should be switched from a first frequency band to a second frequency band based on a current location; and instructing the ship end control equipment and the container end monitoring equipment to execute frequency band switching.
According to a third aspect of the present disclosure, there is provided a computer storage medium having stored thereon computer-executable instructions that, when executed by a processor, cause the processor to carry out the method steps as described in the second aspect of the present disclosure.
Compared with the prior art, the communication system for monitoring the shipping container in the ship is realized by a narrow-band communication system in the range of 300MHz-1GHz, so that transparent management of wireless data acquisition of the shipping container in the ocean transportation process can be realized at lower cost. The communication system determines which working frequency band should be used for communication by comparing the current position of the ship with the stored electronic fence, and can automatically switch the working frequency band without manual intervention when detecting that the working frequency band should be changed. In addition, the communication system avoids potential unlicensed band communication by muting the communication module upon detection of an anomaly in the positioning module. The communication system can realize a wireless network which covers the whole ship and meets the radio communication control requirements of all global areas, and can reduce the operation frequency and difficulty of manual inspection of the state of the container by crews.
Drawings
The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.
Fig. 1 is a schematic diagram illustrating a communication system for supervision on a ship, according to aspects of the present disclosure;
fig. 2 is a block diagram illustrating a structure of a communication system for supervision on a ship, according to aspects of the present disclosure; and
fig. 3 is a flow chart illustrating a communication method for supervision on a ship, according to aspects of the present disclosure.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in connection with the preferred embodiments, there is no intent to limit its features to those embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention.
According to an aspect of the present disclosure, a communication system for on-board supervision of shipping containers is provided. Fig. 1 is a schematic diagram illustrating a communication system for supervision on a ship, according to aspects of the present disclosure. As shown in fig. 1, the communication system 100 may include a vessel-side control device installed on a vessel and a container-side monitoring device installed on a container. In some examples, the vessel-side control device may include a first positioning module, a first communication module, and a first control module (MCU1), as will be further described below with reference to fig. 2. In some examples, the first positioning module, the first communication module, and the first control module (MCU1) may be coupled in the vessel-end control device via a wired connection, e.g., mounted on a circuit board within the vessel-end control device by a cable connection. In some examples, the container-side monitoring device may include a second communication module and a second control module (MCU2), as will be further described below with reference to fig. 2. In some examples, the second communication module and the second control module (MCU2) may be coupled in the container-end monitoring device via a wired connection, for example, mounted on a circuit board within the container-end monitoring device by a cable connection. In some examples, the vessel-side control device and the container-side monitoring device may further include other modules, such as status sensors, power modules, monitors, alarms, and/or any other modules, as will be further described below with reference to fig. 2.
In some examples, the vessel-side control device and the container-side monitoring device may communicate via a wireless network. In some examples, the vessel-side control device and the container-side monitoring device may communicate via a narrowband communication system in the range of 300MHz-1 GHz. More specifically, the ship-side control device and the container-side monitoring device may communicate using a specific frequency band divided into a plurality of frequency bands in the range of 300MHz to 1 GHz. In some examples, the vessel-side control device and the container-side monitoring device may communicate with each other via the first communication module and the second communication module, respectively. In some examples, the first communication module in the vessel-side control device may further be equipped with a satellite communication component for satellite communication in a sea area without network coverage.
A communication system for on-board supervision of shipping containers according to aspects of the present application is further described below with reference to fig. 2. Fig. 2 is a block diagram illustrating a structure of a communication system 200 for supervision on a ship according to aspects of the present disclosure. It should be noted that the in-vessel supervisory communications system 200 may be an example of the in-vessel supervisory communications system 100 described with reference to fig. 1. As shown in fig. 2, the on-board supervisory communication system 200 may include a vessel-side control device 210 and a container-side monitoring device 220. In some examples, the vessel-side control device 210 and the container-side monitoring device 220 may be examples of the vessel-side control device and the container-side monitoring device described with reference to fig. 1.
In some examples, the vessel-side control device 210 may include a first control module (MCU1)211, a first communication module 212, a first storage module 213, a first positioning module 214, a first power source 215, a monitor 216, an alarm 217, and/or optionally other modules coupled to one another via a wired connection.
In some examples, the first positioning module 214 may be configured to determine a current position of the vessel-end control device 210, i.e., a current position of the vessel. In some examples, the first positioning module 214 may utilize various positioning technologies or systems to implement positioning functionality, such as GPS, beidou, GLONASS, and so on.
In some examples, the first communication module 212 may be configured to communicate with the container-end monitoring device 220 using a first operating frequency band via a wireless network. The first communication module 212 may be configured to transceive data using a narrow band in the range of 300MHz-1 GHz. In some examples, the frequency range of 300MHz-1GHz may include a plurality of frequency bands, such as a first frequency band of 433MHz, a second frequency band of 470MHz, a third frequency band of 923MHz, and so on. In some examples, the first communication module 212 may be configured to communicate with the container-end monitoring device 220 using any one of a first frequency band of 433MHz, a second frequency band of 470MHz, and a third frequency band of 923 MHz.
In some examples, the first communication module 212 may be configured to transmit the operating band switch instruction to the container-side monitoring device 220. In some examples, the operating band switching instruction may be implemented using an extended reception band range. In this case, the operating band switching instruction may include an instruction to switch the transmitting operating band from the first operating band to the second operating band, and to extend the receiving operating band from the first operating band to the first operating band plus the second operating band. In this case, the first communication module 212 is configured to switch the transmission operating frequency band from the first operating frequency band to the second operating frequency band and extend the reception operating frequency band from the first operating frequency band to the first operating frequency band plus the second operating frequency band after the transmission operating frequency band switching command.
In some examples, the first communication module 212 may be equipped with a satellite communication component for satellite communication in a sea area without network coverage.
In some examples, the first storage module 213 is configured to store longitude and latitude electronic fences of different countries and their corresponding authorized frequency bands.
TABLE 1
As shown in table 1, a polygon formed by connecting the respective longitude and latitude coordinate points in the first column represents an area to which the regulated frequency band of the corresponding country or region is applicable. In one example, once the position of the vessel is monitored to fall within the polygon, the communication band of the vessel is adjusted to the corresponding operating band.
In some examples, the first control module 211 may be configured to determine that the operating frequency band of the wireless network should be switched from the first operating frequency band to the second operating frequency band based on the current location of the vessel determined by the first positioning module 214. The first control module 211 may be configured to determine that the first operating frequency band should be switched to the second operating frequency band based on a comparison of the current location of the vessel with the electronic fence data stored in the first storage module 213. The first control module 211 may be configured to send an operating band switching instruction to the container side monitoring device 220 via the first communication module 213. The first control module 211 may be configured to monitor the status of the first positioning module 214 and to cause the alarm 217 to send a warning message and instruct the first communication module 212 to remain silent when it is determined that the first positioning module 214 is not operating properly.
In some examples, the vessel end control device 210 may further include a first power source 215, an alarm 217, an optional monitor 216, and/or optional other modules. The first power source 215 may be configured to power the vessel-side control device 210. For example, the first power source 215 may be implemented with an active crystal. The alarm 217 may be configured to issue alarm information under the control of the first control module 211. For example, the alarm 217 may be implemented as a buzzer and provide a warning message by sounding a buzzer. The optional monitor 216 may be configured to display any information and data associated with the vessel-side control device 210 and/or the container-side monitoring device 220, including, for example and without limitation, the current location of the vessel, electronic fence information, a first operating band, a second operating band, warning information, status information of the first and/or second positioning modules, container status information, container location information, and the like.
It should be understood by those skilled in the art that the specific implementations of the first control module 211, the first communication module 212, the first storage module 213, the first positioning module 214, the first power source 215, the monitor 216, and the alarm 217 described above are merely exemplary, and any other suitable implementations are within the scope of the present application. Further, those skilled in the art will also appreciate that the vessel end control device 210 may include any other suitable modules without departing from the spirit and scope of the present application.
In some examples, the container-side monitoring device 220 may include a second control module (MCU2)221, a second location module 222, a second storage module 223, a second communication module 224, a second power supply 225, a status sensor 226, and/or optionally other modules coupled to each other via wired connections.
In some examples, the second location module 222 may be configured to determine a current location of the container-end monitoring device 220, i.e., a current location of the container. In some examples, the second location module 222 may utilize various location technologies or systems to implement location functionality, such as GPS, beidou, GLONASS, and so on. The first control module 211 may be configured to monitor the status of the second location module 222 and cause the alarm 217 to send a warning message and instruct the second communication module 222 to remain silent when it is determined that the second location module 222 is not functioning properly.
In some examples, the status sensor 226 may be configured to collect status data of the container. The status data of the container may include one or more of: the temperature in the container and the door state of the container.
In some examples, the second communication module 224 may be configured to communicate with the vessel-side control device 210 via a wireless network using a first operating frequency band. The second communication module 224 may be configured to transceive data using a narrow band in the range of 300MHz-1 GHz. In some examples, the frequency range of 300MHz-1GHz may include a plurality of frequency bands, such as a first frequency band of 433MHz, a second frequency band of 470MHz, a third frequency band of 923MHz, and so on. In some examples, the second communication module 224 may be configured to communicate with the vessel-side control device 210 using any one of a first frequency band of 433MHz, a second frequency band of 470MHz, and a third frequency band of 923 MHz.
In some examples, the second communication module 224 may be configured to receive an operating band switching instruction from the vessel-side control device 210. In some examples, the operating band switching instruction may be implemented using an extended reception band range. In this case, the operating band switching instruction may include an instruction to switch the transmitting operating band from the first operating band to the second operating band, and to extend the receiving operating band from the first operating band to the first operating band plus the second operating band. In this case, the second communication module 224 is configured to switch the transmission operating frequency band from the first operating frequency band to the second operating frequency band and extend the reception operating frequency band from the first operating frequency band to the first operating frequency band plus the second operating frequency band after receiving the operating frequency band switching instruction from the ship-side control device 210.
In some examples, the second communication module 224 may be configured to send information associated with the container-side monitoring device 220 to the vessel-side control device 210. The second communication module 224 may be configured to send the status data collected by the status sensor 226 and/or the current position of the container determined by the second location module 222 to the vessel-side control device 210. In this case, the first control module 211 may be further configured to determine the status of the container based on the received status data and/or the current location of the container, and determine whether to send warning information based on the status of the container. In one example of this scenario, the state of the container includes an abnormal operating state. The abnormal operation state may include an abnormal temperature in the refrigerator (for example, a temperature in the refrigerator deviated from a set temperature by 3 ℃) or an open state of the door. In one example of this situation, the first control module 211 may be further configured to determine that the state of the container is abnormal in response to an in-box temperature abnormality or a box door state being an open state, and cause the alarm 217 to send a warning message based on the state of the container being abnormal.
In some examples, the second storage module 223 may be configured to store information associated with the container-side monitoring device, such as including, but not limited to, status data collected by the status sensor 226 and/or the current location of the container determined by the second location module 222.
In some examples, the second control module 221 may be configured to instruct the second communication module 224 to execute the operating band switch command in response to the operating band switch command received from the vessel-side control device 210.
In some examples, the second power source 225 may be configured to power the container-end monitoring device 220. For example, the second power supply 225 may be implemented with an active crystal.
In some examples, the first control module 211 may be further configured to determine whether the second communication module 224 currently uses the first operating frequency band or the second operating frequency band as the transmission operating frequency band based on data received from the container end monitoring device 220 via the second communication module 224. In some examples, the first control module 211 may be further configured to re-transmit the operating band switching instruction to the container side monitoring device 220 via the first communication module 212 in response to determining that the second communication module 224 currently uses the first operating band as the transmission operating band. In some examples, the first control module 211 may repeat the above operations until the second communication module 224 completes the operating band switch.
Those skilled in the art will appreciate that the specific implementations of the second control module 221, the second location module 222, the second storage module 223, the second communication module 224, the second power supply 225, and the status sensor 226 described above are merely exemplary, and any other suitable implementations are within the scope of the present application. Further, those skilled in the art will also appreciate that the container end monitoring device 220 may comprise any other suitable modules without departing from the spirit and scope of the present application.
According to another aspect of the present disclosure, a method of communication for on-board supervision of a shipping container is provided. Referring next to fig. 3, a flow diagram of a communication method 300 for on-board custody is illustrated, in accordance with aspects of the present disclosure. In some examples, the method 300 is described in the context of a ship oversight communication system as described with reference to fig. 1 and 2. In some examples, the method 300 may be performed by a vessel-side control device in a vessel oversight communication system as described with reference to fig. 1 and 2.
The method 300 may include: in step 305, the current position of the vessel is determined. In some examples, step 305 may be implemented by the first positioning module 214 as described with reference to fig. 2, as described above. The method 300 may include: at step 310, it is determined that the operating band of the wireless network should be switched from the first band to the second band based on the current location of the vessel. In some examples, step 310 may be implemented by the first control module 211 described with reference to fig. 2. For example, the first control module 211 may determine that the operating frequency band of the wireless network should be switched from the first frequency band to the second frequency band based on the current location of the vessel determined by the first positioning module 214. For example, the first control module 211 may determine that the operating frequency band of the wireless network should be switched from the first frequency band to the second frequency band based on a comparison between the current location of the vessel determined by the first positioning module 214 and the stored electronic fence. The method 300 may include: in step 315, the ship-side control device and the container-side monitoring device are instructed to perform frequency band switching. In some examples, step 315 may be implemented by the first control module 211 described with reference to fig. 2, for example. For example, the first control module 211 may send an operating band switching instruction to the container side monitoring device 220 via the first communication module 212.
According to yet another aspect of the invention, an embodiment of a computer-readable medium is provided. The present embodiment provides the above-mentioned computer-readable medium having stored thereon instructions that, when executed by a processor, implement the communication method for supervision on a ship provided by any of the above-mentioned embodiments.
Those of skill in the art would appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The various illustrative logical modules, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A communication system for on-board supervision of ocean-going transportation, comprising:
vessel-side control apparatus, comprising:
a first positioning module configured to determine a current position of the vessel-end control device,
a first communication module configured to communicate with a container-end monitoring device via a wireless network using a first operating frequency band,
a first control module configured to determine that an operating frequency band of the wireless network should be switched from a first operating frequency band to a second operating frequency band based on the current location determined by the first positioning module, and to transmit an operating frequency band switching instruction to the container-side monitoring device via the first communication module,
wherein the first positioning module, the first communication module, and the first control module are coupled in the vessel-side control device via a wired connection;
a container-side monitoring device communicatively coupled with the vessel-side control device via the wireless network, comprising:
a second communication module configured to communicate with the vessel-side control device via the wireless communication network using a first operating frequency band,
a second control module configured to instruct the second communication module to execute an operating band switch command in response to the operating band switch command received from the vessel-side control device,
wherein the second communication module and the second control module are coupled in the container-end monitoring device via a wired connection.
2. The system of claim 1, wherein the vessel-side control device further comprises a first storage module coupled to the first positioning module, the first communication module, and the first control module via wired connections, configured to store longitude and latitude electronic fences of different countries and their corresponding authorized frequency bands;
the first control module is further configured to determine that the first operating frequency band should be switched to the second operating frequency band based on a comparison of the current location of the vessel-side control device with the stored electronic fence and to send an operating frequency band switching instruction to the container-side monitoring device via the first communication module.
3. The system of claim 1, wherein the operating band switch instruction comprises:
the method comprises the steps of switching a transmitting working frequency band from a first working frequency band to a second working frequency band, and expanding a receiving working frequency band from the first working frequency band to the first working frequency band plus the second working frequency band.
4. The system of claim 3,
the first control module is further configured to:
determining, based on data received from the container end monitoring device via a second communication module, whether the second communication module currently uses a first operating frequency band or a second operating frequency band as a transmission operating frequency band; and
and in response to the determination that the second communication module currently uses the first working frequency band as the sending working frequency band, sending a working frequency band switching instruction to the container end monitoring equipment again through the first communication module.
5. The system of claim 1, wherein the wireless communication system comprises a narrowband system in the frequency range of 300MHz to 1 GHz.
6. The system as recited in claim 1, wherein said first control module is further configured to monitor a status of said first positioning module and/or said second positioning module and to send a warning message and instruct said first communication module and said second communication module to remain silent upon a determination that said first positioning module and/or said second positioning module is not functioning properly.
7. The system of claim 1, wherein the container-side monitoring device further comprises one or more status sensors coupled to the second communication module and the second control module via a wired connection configured to collect status data of the container, wherein the status data includes one or more of: the temperature in the container and the state of the container door.
8. The system of claim 7,
the container side monitoring apparatus further comprises: a second location module coupled to the second communication module and the second control module via wired connections configured to determine a current location of the container-end monitoring device, and a second storage module coupled to the second communication module, the second control module, and the second location module via wired connections configured to store the status data and the current location of the container-end monitoring device;
the second communication module is further configured to transmit the status data and the current location of the container-side monitoring device to the vessel-side control device; and is
The first control module is further configured to determine a status of the container based on the received status data and a current location of the container-side monitoring device, and determine whether to send a warning message based on the status of the container.
9. The system of claim 8, wherein the first control module is further configured to determine that the status of the container is abnormal in response to one or both of the in-box temperature abnormality or the door status being an open status, and to send a warning message based on the status of the container being abnormal.
10. A communication method for on-board supervision of ocean-going transport, the method being performed by a vessel-side control device, the vessel-side control device and a container-side monitoring device communicating via a wireless network using a first frequency band, the method comprising:
determining a current position of the ship;
determining that an operating frequency band of the wireless network should be switched from a first frequency band to a second frequency band based on the current location; and
and instructing the ship end control equipment and the container end monitoring equipment to execute frequency band switching.
11. The method of claim 10, wherein determining that an operating frequency band of a wireless network should be switched from a first frequency band to a second frequency band based on the current location further comprises:
comparing the current location to the stored electronic fence; and
determining that an operating frequency band of the wireless network should be switched from a first operating frequency band to a second operating frequency band based on the comparison.
12. The method of claim 10, wherein instructing the vessel-side control device and the container-side monitoring device to perform a band switch further comprises:
and instructing the ship end control device and the container end monitoring device to switch the sending working frequency band from the first working frequency band to the second working frequency band and expand the receiving working frequency band from the first working frequency band to the first working frequency band plus the second working frequency band.
13. A computer storage medium having stored thereon computer-executable instructions that, when executed by a processor, cause the processor to implement the operations of the method of any of claims 10-13.
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