JP7208471B2 - Refrigerator management system, Refrigerator management method, program for main terminal unit, and program for sub-terminal unit - Google Patents

Description

The present disclosure relates to a refrigerator management system, a refrigerator management method, a program for a main terminal unit, and a program for a sub terminal unit.

Patent Literature 1 discloses a management system for a reefer container. In this management system, wireless communication is performed between a refrigerator controller provided in a refrigerated container and a mobile terminal operated by a worker. Information such as the temperature inside the refrigerator and the set temperature transmitted from the controller is displayed on the mobile terminal. Also, when an operator operates a mobile terminal to input a set temperature, etc., the input set temperature is transmitted from the mobile terminal to the controller of the refrigerator.

JP 2016-217621 A

Here, there is a risk that the mobile terminal that constitutes the refrigerated container management system will fall into the hands of a third party other than the parties involved in the management of the refrigerated container. If all the portable terminals that make up the management system can unconditionally perform operations on the refrigerator (for example, changing the set temperature), a third party can use the obtained portable terminal to There is a possibility of operating the refrigerator of the container.

An object of the present disclosure is to reduce the possibility of a third party operating a refrigerator to be managed.

A first aspect of the present disclosure is directed to a management system for managing chillers (10) mounted one by one in a plurality of shipping containers (5). A wireless communication unit (31) provided for each refrigerator (10), and a main terminal unit (32) and a sub terminal unit (35), each of which wirelessly communicates with the wireless communication unit (31). and each of the main terminal unit (32) and the sub terminal unit (35) provides the refrigerator (10) corresponding to the wireless communication unit (31) with respect to the wireless communication unit (31). The wireless communication unit (31) is configured to be capable of transmitting an operation command for operation, and the wireless communication unit (31) transmits the received above to the controller (11) of the refrigerator (10) corresponding to the wireless communication unit (31). The main terminal unit (32) is configured to transmit an operation command, and the main terminal unit (32) transmits the operation command to the plurality of wireless communication units (31) only inside a preset permitted area (90). The secondary terminal unit (35) is configured to allow only one wireless communication unit (31) corresponding to the secondary terminal unit (35) both inside and outside the permitted area (90). It is configured so as to be able to transmit the above-described operation command to it.

In the management system (30) of the first aspect, the main terminal unit (32) and the sub terminal unit (35) are different from each other in terms of targets to which operation commands can be sent and conditions for sending operation commands.

In the first aspect, the main terminal unit (32) can transmit operation commands to a plurality of wireless communication units (31), but the area in which the operation commands can be transmitted is limited inside the permitted area (90). . In other words, for the main terminal unit (32) capable of operating a plurality of refrigerators (10), the area in which operation instructions can be transmitted is restricted. Therefore, even if a third party other than the party engaged in the management of the refrigerator (10) acquires the main terminal unit (32), the refrigerator can be operated using the main terminal unit (32) obtained by the third party. (10) can be reduced and the security of the management system (30) can be increased.

Further, in the first aspect, the sub terminal unit (35) can transmit the operation command only to one corresponding wireless communication unit (31), but the area in which the operation command can be transmitted is not limited. In other words, for the sub terminal unit (35) in which the area to which the operation command can be transmitted is not limited, the number of operable refrigerators (10) is limited to one. Therefore, even if a third party other than the party engaged in the management of the refrigerator (10) obtains the sub-terminal unit (35), the sub-terminal unit (35) obtained by the third party can be used for operation. The refrigerator (10) can be limited to only one refrigerator (10) corresponding to the sub-terminal unit (35) obtained by a third party. Therefore, it is possible to limit the number of refrigerators (10) operated by a third party, thereby enhancing the security of the management system (30).

In a second aspect of the present disclosure, in the first aspect, the main terminal unit (32) provides permission information (95) permitting transmission of the operation command to the sub terminal unit (35). The secondary terminal unit (35) is configured to perform a permission operation, and sends the operation command to the wireless communication unit (31) only after obtaining the permission information (95) from the main terminal unit (32). It is configured so that it can be sent to

In the management system (30) of the second aspect, the sub terminal unit (35) sends the operation command to the wireless communication unit (31) unless after obtaining the permission information (95) from the main terminal unit (32). Cannot send. Therefore, according to this aspect, the conditions for the sub terminal unit (35) to transmit the operation command to the wireless communication unit (31) become stricter, further enhancing the security of the management system (30).

A third aspect of the present disclosure is the second aspect, wherein the main terminal unit (32) is configured to execute an operation of displaying the permission information (95) as the permission operation, The terminal unit (35) is configured to read and acquire the permission information (95) displayed on the main terminal unit (32).

In the management system (30) of the third aspect, the sub terminal unit (35) reads the permission information (95) displayed on the main terminal unit (32), thereby reading the permission information ( 95). In order to cause the sub terminal unit (35) to read the permission information (95) displayed on the main terminal unit (32), the user of the sub terminal unit (35) meets the user of the main terminal unit (32). There is a need. Therefore, according to this aspect, the user of the main terminal unit (32) can see and confirm the user of the sub terminal unit (35), further increasing the security of the management system (30).

According to a fourth aspect of the present disclosure, in the third aspect, the main terminal unit (32) is configured to convert the permission information (95) into a matrix type two-dimensional code and display it. be.

In the management system (30) of the fourth aspect, the main terminal unit (32) displays the permission information (95) converted into matrix type two-dimensional code.

According to a fifth aspect of the present disclosure, in any one of the second to fourth aspects, the main terminal unit (32) acquires the permission information (95) and the sub terminal unit (35) acquires the above Communication information for identifying one wireless communication unit (31) capable of transmitting an operation command is included in the permission information (95).

In the management system (30) of the fifth aspect, the main terminal unit (32) incorporates communication information into the authorization information (95) given to the sub terminal unit (35). Therefore, the sub terminal unit (35) can perform wireless communication with one corresponding wireless communication unit (31) using the communication information included in the acquired permission information (95).

According to a sixth aspect of the present disclosure, in any one of the first to fifth aspects, the main terminal unit (32) and the sub terminal unit (35) are attached with the refrigerator (10). The container identification symbol unique to the shipping container (5) and the number plate (3) of the shipping vehicle (2) carrying the shipping container (5) with the refrigerator (10) attached. It is configured to acquire and display one or both of vehicle registration information.

In the management system (30) of the sixth aspect, each of the main terminal unit (32) and the sub-terminal unit (35) has a container identification symbol for the shipping container (5) and a vehicle registration for the shipping vehicle (2). Retrieve and display information and/or For this reason, the user of the main terminal unit (32) is requested to allow the main terminal unit (32) to perform wireless communication based on one or both of the container identification symbol and the vehicle registration information displayed on the main terminal unit (32). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed. Further, the user of the sub terminal unit (35) performs wireless communication with the sub terminal unit (35) based on one or both of the container identification symbol and the vehicle registration information displayed on the sub terminal unit (35). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed.

In a seventh aspect of the present disclosure, in any one of the first to sixth aspects, the sub terminal unit (35) sends the wireless communication unit (31) to the wireless communication unit (31) only during a preset permission period. It is configured to be able to transmit an operation command.

In the management system (30) of the seventh aspect, the sub terminal unit (35) cannot transmit the operation command to the wireless communication unit (31) except during the permitted period. Therefore, according to this aspect, the conditions under which the sub terminal unit (35) can transmit the operation command to the wireless communication unit (31) become stricter, further increasing the security of the management system (30).

In an eighth aspect of the present disclosure, in any one of the first to seventh aspects, the wireless communication unit (31), when communicating with the main terminal unit (32), (35) and configured to communicate with the sub-terminal unit (35) when not communicating with the main terminal unit (32).

In the management system (30) of the eighth aspect, the wireless communication unit (31) preferentially communicates with the main terminal unit (32) out of the main terminal unit (32) and the sub terminal unit (35).

In a ninth aspect of the present disclosure, in any one of the first to eighth aspects, the wireless communication unit (31) operates the refrigerator (10) corresponding to the wireless communication unit (31). The main terminal unit (32) and the sub terminal unit (35) are configured to acquire operating information about the state and transmit the acquired operating information to the main terminal unit (32) and the sub terminal unit (35). ) is configured to display the received driving information.

In the management system (30) of the ninth aspect, the wireless communication unit (31) transmits the operating information acquired from the refrigerator (10) to the main terminal unit (32) and the sub terminal unit (35). Each of the main terminal unit (32) and the sub-terminal unit (35) displays the received operational information. Therefore, users of the main terminal unit (32) and the sub-terminal unit (35) can know the operating information regarding the operating state of the refrigerator (10) even at a place away from the refrigerator (10).

A tenth aspect of the present disclosure is a wireless communication unit (31) provided in each of the refrigerators (10) attached to a plurality of shipping containers (5) one by one. and a management method using a main terminal unit (32) and a sub terminal unit (35) that communicate wirelessly with the wireless communication unit (31). Then, each of the main terminal unit (32) and the sub terminal unit (35) operates the refrigerator (10) corresponding to the wireless communication unit (31) with respect to the wireless communication unit (31). and causes the wireless communication unit (31) to transmit the received operation command to the controller (11) of the refrigerator (10) corresponding to the wireless communication unit (31). On the other hand, the main terminal unit (32) permits transmission of the operation command to the plurality of wireless communication units (31) only inside the preset permission area (90), and the sub terminal unit (35) ) permits transmission of the operation command to only one wireless communication unit (31) corresponding to the sub terminal unit (35) both inside and outside the permitted area (90).

In the management method of the tenth aspect, the main terminal unit (32) and the sub terminal unit (35) transmit the operation command and the target to which the operation command can be sent, as in the management system (30) of the first aspect. The conditions for doing so are different from each other. As in the management system (30) of the first aspect, since the main terminal unit (32) capable of operating a plurality of refrigerators (10) has a limited area in which operation instructions can be transmitted, the management system (30) (30) can increase security. Further, as in the management system (30) of the first aspect, the sub-terminal unit (35), in which the area to which the operation command can be transmitted is not limited, is limited to one refrigerator (10) that can be operated. , the security of the management system (30) can be increased.

According to the eleventh aspect of the present disclosure, in the tenth aspect, for giving permission information (95) for permitting transmission of the operation command to the main terminal unit (32) to the sub terminal unit (35). Only the sub terminal unit (35) that has executed the permission operation and has acquired the permission information (95) from the main terminal unit (32) is permitted to transmit the operation command to the wireless communication unit (31). be.

In the management method of the eleventh aspect, the sub terminal unit (35) cannot transmit the operation command to the wireless communication unit (31) until after obtaining the permission information (95) from the main terminal unit (32). Therefore, according to this aspect, the conditions for allowing the sub terminal unit (35) to transmit the operation command to the wireless communication unit (31) can be tightened, and the security of the management system (30) can be further enhanced.

A twelfth aspect of the present disclosure is, in the eleventh aspect, causing the main terminal unit (32) to execute an operation of displaying the permission information (95) as the permission operation, and ) to read and acquire the permission information (95) displayed on the main terminal unit (32).

In the management method of the twelfth aspect, the sub terminal unit (35) obtains permission information (95) from the main terminal unit (32) by reading the permission information (95) displayed on the main terminal unit (32). get. Therefore, according to this aspect, as in the management system (30) of the third aspect, the user of the main terminal unit (32) can see and confirm the user of the sub terminal unit (35). , further increases the security of the management system (30).

A thirteenth aspect of the present disclosure, in the twelfth aspect, causes the main terminal unit (32) to convert the permission information (95) into a matrix type two-dimensional code and display it.

In the management method of the thirteenth aspect, the main terminal unit (32) displays the permission information (95) converted into matrix type two-dimensional code.

A fourteenth aspect of the present disclosure is, in any one of the eleventh to thirteenth aspects, the secondary terminal unit (35) that has acquired the permission information (95) is connected to the main terminal unit (32). Communication information for identifying one wireless communication unit (31) capable of transmitting an operation command is included in the permission information (95).

In the management method of the fourteenth aspect, the main terminal unit (32) incorporates communication information into the authorization information (95) given to the sub terminal unit (35). Therefore, the sub terminal unit (35) can perform wireless communication with one corresponding wireless communication unit (31) using the communication information included in the acquired permission information (95).

A fifteenth aspect of the present disclosure is, in any one of the tenth to fourteenth aspects, a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached, One or both of the vehicle registration information on the license plate (3) of the transport vehicle (2) carrying the transport container (5) with the machine (10) attached to the main terminal unit (32 ) and the sub terminal unit (35) to acquire and display.

In the management method of the fifteenth aspect, each of the main terminal unit (32) and the sub-terminal unit (35) stores the container identification symbol of the transportation container (5) and the vehicle registration information of the transportation vehicle (2). Get and display one or both. For this reason, the user of the main terminal unit (32) is requested to allow the main terminal unit (32) to perform wireless communication based on one or both of the container identification symbol and the vehicle registration information displayed on the main terminal unit (32). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed. Further, the user of the sub terminal unit (35) performs wireless communication with the sub terminal unit (35) based on one or both of the container identification symbol and the vehicle registration information displayed on the sub terminal unit (35). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed.

According to a sixteenth aspect of the present disclosure, in any one of the tenth to fifteenth aspects, the sub terminal unit (35) is provided with the wireless communication unit (31) only during a preset permission period. This permits the transmission of operation commands.

In the management method of the sixteenth aspect, the sub terminal unit (35) cannot transmit the operation command to the wireless communication unit (31) except during the permitted period. Therefore, according to this aspect, the conditions under which the sub terminal unit (35) can transmit the operation command to the wireless communication unit (31) become stricter, further increasing the security of the management system (30).

A seventeenth aspect of the present disclosure is, in any one of the tenth to sixteenth aspects, when the wireless communication unit (31) is communicating with the main terminal unit (32), (31) to refuse communication with the sub terminal unit (35), and when the radio communication unit (31) is not communicating with the main terminal unit (32), the radio communication unit (31) It allows communication with the sub-terminal unit (35).

In the management method of the seventeenth aspect, the radio communication unit (31) preferentially communicates with the main terminal unit (32) out of the main terminal unit (32) and the sub terminal unit (35).

According to an eighteenth aspect of the present disclosure, in any one of the tenth to seventeenth aspects, the wireless communication unit (31) is instructed to operate the refrigerator (10) corresponding to the wireless communication unit (31). Acquisition of operation information about the state, transmission of the acquired operation information to the main terminal unit (32) and the sub terminal unit (35), and transmission of the main terminal unit (32) and the sub terminal unit (35), respectively , the received operation information is displayed.

In the management method of the eighteenth aspect, the wireless communication unit (31) transmits the operating information acquired from the refrigerator (10) to the main terminal unit (32) and the sub terminal unit (35). Each of the main terminal unit (32) and the sub-terminal unit (35) displays the received operational information. Therefore, users of the main terminal unit (32) and the sub-terminal unit (35) can know the operating information regarding the operating state of the refrigerator (10) even at a place away from the refrigerator (10).

A nineteenth aspect of the present disclosure configures a management system (30) for managing refrigerators (10) attached one by one to a plurality of shipping containers (5), The target is a program installed in a main terminal unit (32) that wirelessly communicates with a wireless communication unit (31) provided for each. a transmission process of transmitting an operation command for operating the refrigerator (10) to the wireless communication unit (31) corresponding to the refrigerator (10); and the main terminal unit in which the program is installed. Position determination processing for determining whether or not the position of (32) is inside a preset permitted area (90), and execution of the transmission processing are performed by the main terminal unit (32) in the position determination processing. The main terminal unit (32) is caused to execute area restriction processing for restricting only when it is determined that the position of is inside the permitted area (90).

The main terminal unit (32) installed with the program of the nineteenth aspect executes area restriction processing. Therefore, although the main terminal unit (32) can transmit operation commands to a plurality of wireless communication units (31), the area in which the operation commands can be transmitted is limited to the inside of the permitted area (90). In other words, the area in which the operation command can be transmitted is restricted for the main terminal unit (32) capable of operating the plurality of refrigerators (10). Therefore, as in the first aspect, it is possible to reduce the possibility of a third party using the main terminal unit (32) to operate the refrigerator (10), thereby enhancing the security of the management system (30). .

A twentieth aspect of the present disclosure is, in the nineteenth aspect, a sub terminal unit (35) that configures the management system (30) together with the main terminal unit (32) and wirelessly communicates with the wireless communication unit (31). ), the main terminal unit (32 ) is executed.

The main terminal unit (32) in which the program of the twentieth aspect is installed executes authorization processing. In the permission information (95) given to the sub terminal unit (35), the main terminal unit (32) specifies "transmission of an operation command to one wireless communication unit (31) corresponding to the sub terminal unit (35)". to approve. Therefore, the sub terminal unit (35) is limited to operating only one refrigerator (10). Therefore, according to this aspect, similarly to the management system (30) of the first aspect, the number of refrigerators (10) operated by a third party can be limited, and the security of the management system (30) can be enhanced. can be done.

Also, the sub terminal unit (35) constituting the management system (30) together with the main terminal unit (32) in which the program of the twentieth aspect is installed acquires the permission information (95) from the main terminal unit (32). Only later can the operation command be sent to the wireless communication unit (31). Therefore, according to this aspect, the conditions for allowing the sub terminal unit (35) to transmit the operation command to the wireless communication unit (31) can be tightened, and the security of the management system (30) can be further enhanced.

A twenty-first aspect of the present disclosure is, in the twentieth aspect, causing the main terminal unit (32) to execute a process of displaying the permission information (95) as the permission process.

The main terminal unit (32) in which the program of the twenty-first aspect is installed displays permission information (95) in its permission processing.

A twenty-second aspect of the present disclosure is, in the twenty-first aspect, executing a process of converting the permission information (95) into a matrix type two-dimensional code and displaying it in the main terminal unit (32) in the permission process. It is something that makes

The main terminal unit (32) installed with the program of the twenty-second aspect displays the permission information (95) converted into the matrix type two-dimensional code.

A twenty-third aspect of the present disclosure is, in any one of the twentieth to twenty-second aspects, the one wireless terminal unit (35) that has acquired the permission information (95) can transmit the operation command. In the permission process, the main terminal unit (32) is caused to execute a process of including communication information for specifying the communication unit (31) in the permission information (95).

The main terminal unit (32) in which the program of the twenty-third aspect is installed inserts information for communication into the permission information (95) given to the sub terminal unit (35). Therefore, the main terminal unit (32) can give communication information to the sub terminal unit (35) together with permission to transmit an operation command to the wireless communication unit (31).

A twenty-fourth aspect of the present disclosure is, in any one of the nineteenth to twenty-third aspects, a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached; Acquire and display one or both of the vehicle registration information listed on the license plate (3) of the transportation vehicle (2) carrying the above transportation container (5) with the machine (10) attached. , is executed by the main terminal unit (32).

The main terminal unit (32) installed with the program of the twenty-fourth aspect acquires and displays at least one of the container identification symbol and the vehicle registration information. For this reason, the user of the main terminal unit (32) is requested to allow the main terminal unit (32) to perform wireless communication based on one or both of the container identification symbol and the vehicle registration information displayed on the main terminal unit (32). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed.

A twenty-fifth aspect of the present disclosure is, in any one of the nineteenth to twenty-fourth aspects, the refrigerator ( 10) The main terminal unit (32) is caused to execute the operation information acquisition process of acquiring the operation information related to the operation state and the operation information display process of displaying the acquired operation information.

The main terminal unit (32) installed with the program of the twenty-fifth aspect displays the driving information acquired from each of the plurality of wireless communication units (31). Therefore, the user of the main terminal unit (32) can easily know the operating information regarding the operating states of the plurality of refrigerators (10).

A twenty-sixth aspect of the present disclosure constitutes a management system (30) for managing refrigerators (10) attached one by one to a plurality of shipping containers (5), A program to be installed in a sub-terminal unit (35) that wirelessly communicates with a wireless communication unit (31) provided for each is targeted. Then, transmission of an operation command for operating the refrigerator (10) corresponding to the wireless communication unit (31) to only one wireless communication unit (31) corresponding to the sub terminal unit (35). a permission acquisition process of acquiring permission information (95) to be permitted from a main terminal unit (32) constituting the management system (30) together with the sub terminal unit (35); and after obtaining the permission information (95), causing the sub terminal unit (35) to execute transmission processing of transmitting the operation command to one of the wireless communication units (31) permitted to transmit the operation command by the permission information (95). is.

The sub terminal unit (35) in which the program of the twenty-sixth aspect is installed executes permission acquisition processing. The sub terminal unit (35) acquires permission information (95) from the main terminal unit (32) by performing permission acquisition processing. A sub terminal unit (35) that has obtained permission information (95) can transmit an operation command only to one wireless communication unit (31) corresponding to that sub terminal unit (35).

The sub-terminal unit (35) installed with the program of the twenty-sixth aspect is limited to operating only one refrigerator (10). Therefore, according to this aspect, similarly to the management system (30) of the first aspect, the number of refrigerators (10) operated by a third party can be limited, and the security of the management system (30) can be enhanced. can be done.

The sub terminal unit (35) in which the program of the twenty-sixth aspect is installed cannot transmit the operation command to the wireless communication unit (31) until after obtaining the permission information (95) from the main terminal unit (32). . Therefore, according to this aspect, the conditions for allowing the sub terminal unit (35) to transmit the operation command to the wireless communication unit (31) can be tightened, and the security of the management system (30) can be further enhanced.

A twenty-seventh aspect of the present disclosure is the twenty-sixth aspect, wherein the process of reading and acquiring the permission information (95) displayed on the main terminal unit (32) is performed by the sub terminal unit as the permission acquisition process. (35) is executed.

The sub terminal unit (35) in which the program of the twenty-seventh aspect is installed reads the permission information (95) displayed on the main terminal unit (32), thereby reading the permission information (95) from the main terminal unit (32). to get Therefore, according to this aspect, as in the management system (30) of the third aspect, the user of the main terminal unit (32) can see and confirm the user of the sub terminal unit (35). , further increases the security of the management system (30).

A twenty-eighth aspect of the present disclosure is, in the twenty-sixth or twenty-seventh aspect, communication information for specifying one of the wireless communication units (31) to which the sub terminal unit (35) can transmit the operation command. The sub terminal unit (35) is caused to execute the process of acquiring the permission information (95) including from the main terminal unit (32) in the permission acquisition process.

The sub terminal unit (35) in which the program of the twenty-eighth aspect is installed acquires permission information (95) including communication information from the main terminal unit (32) in the permission acquisition process. Therefore, the sub terminal unit (35) can perform wireless communication with one corresponding wireless communication unit (31) using the communication information included in the acquired permission information (95).

A twenty-ninth aspect of the present disclosure is, in any one of the twenty-sixth to twenty-eighth aspects, a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached, Acquire and display one or both of the vehicle registration information listed on the license plate (3) of the transportation vehicle (2) carrying the above transportation container (5) with the machine (10) attached. , to be executed by the sub-terminal unit (35).

A sub terminal unit (35) in which the program of the twenty-ninth aspect is installed acquires and displays at least one of the container identification symbol and the vehicle registration information. For this reason, the user of the sub terminal unit (35) can use the sub terminal unit (35) to perform wireless communication based on one or both of the container identification symbol and the vehicle registration information displayed on the sub terminal unit (35). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed.

A thirtieth aspect of the present disclosure is, in any one of the twenty-sixth to twenty-ninth aspects, performing a time limit process that permits execution of the transmission process only during a preset permission period in the sub terminal unit (35). is executed by

The sub terminal unit (35) in which the program of the thirtieth aspect is installed cannot transmit an operation command to the wireless communication unit (31) unless it is during the permitted period. Therefore, according to this aspect, the conditions under which the sub terminal unit (35) can transmit the operation command to the wireless communication unit (31) become stricter, further increasing the security of the management system (30).

A thirty-first aspect of the present disclosure is, in any one of the twenty-sixth to thirtieth aspects, from the wireless communication unit (31) corresponding to the sub-terminal unit (35) to the wireless communication unit (31) The sub terminal unit (35) is caused to execute an operation information acquisition process of acquiring operation information relating to the operation state of the corresponding refrigerator (10) and an operation information display process of displaying the acquired operation information. .

In the thirty-first aspect, the sub terminal unit (35) in which the program of (35) is installed displays the driving information acquired from the wireless communication unit (31) corresponding to the sub terminal unit (35). Therefore, the user of the sub terminal unit (35) can obtain the operating information about the operating state of the refrigerator (10) that can be operated using the sub terminal unit (35) even at a place away from the refrigerator (10). , it becomes possible to know

FIG. 1 is a system configuration diagram showing a management system according to an embodiment and a trailer provided with a refrigerator, which is managed by the management system. FIG. 2 is a schematic side view of a trailer equipped with a refrigerator and a tractor that pulls the trailer, which are managed by the management system of the embodiment. FIG. 3 is a map showing an example of the permitted area. FIG. 4 is a block diagram showing the configuration of the management system of the embodiment and the configuration of the controllers of the refrigerators managed by the management system. FIG. 5 is a block diagram showing the configuration of the wireless LAN adapter of the embodiment. FIG. 6 is a block diagram showing the configuration of the administrator terminal according to the embodiment; FIG. 7 is a block diagram showing the configuration of the driver terminal according to the embodiment. FIG. 8 is a flowchart showing the operation of the administrator terminal according to the embodiment; FIG. 9 is a diagram showing a GPS information acquisition screen displayed by the administrator terminal according to the embodiment. FIG. 10 is a diagram showing a password input screen displayed by the administrator terminal according to the embodiment. FIG. 11 is a diagram showing a trailer selection screen displayed by the administrator terminal according to the embodiment. FIG. 12 is a diagram showing a monitor screen displayed by the administrator terminal according to the embodiment while the refrigerator is in operation. FIG. 13 is a diagram showing a monitor screen displayed by the administrator terminal according to the embodiment while the refrigerator is stopped. FIG. 14 is a diagram showing a driving history acquisition screen displayed by the administrator terminal according to the embodiment; FIG. 15 is a diagram showing a driver authentication screen displayed by the administrator terminal according to the embodiment; FIG. 16 is a flowchart showing the operation of the driver terminal according to the embodiment; FIG. 17 is a diagram showing a permission information acquisition screen displayed by the driver terminal according to the embodiment. FIG. 18 is a diagram showing a monitor screen displayed by the driver terminal according to the embodiment;

This embodiment is a management system (30) for managing a plurality of refrigerators (10). This management system (30) executes a management method for managing a plurality of refrigerators (10).

－Management target of the management system－
As shown in FIG. 1, the management system (30) of this embodiment manages four refrigerators (10a to 10d). The number of refrigerators (10) managed by the management system (30) is merely an example.

<Refrigerators, shipping containers, trailers>
As shown in FIG. 1, each chiller (10a-10d) is installed one by one in a shipping container (5a-5d). That is, the first refrigerator (10a) is attached to the first shipping container (5a), the second refrigerator (10b) is attached to the second shipping container (5b), and the third refrigerator (10c) is Attached to the third shipping container (5c), the fourth refrigerator (10d) is attached to the fourth shipping container (5d). Shipping containers (5a-5d) are a type of storehouse for storing goods.

Each shipping container (5a-5d) is secured to the undercarriage of the corresponding trailer (2a-2d). That is, the first shipping container (5a) is attached to the first trailer (2a), the second shipping container (5b) is attached to the second trailer (2b) and the third shipping container (5c) is attached to the second trailer. 3 trailers (2c) and a fourth shipping container (5d) is attached to the fourth trailer (2d). The shipping containers (5a-5d) are fixed to the undercarriage of the trailers (2a-2d) in such a way that they cannot be easily attached or detached.

Each trailer (2a-2d) is fitted with a license plate (3a-3d). The license plate (3a-3d) of each trailer (2a-2d) carries vehicle registration information unique to that trailer (2a-2d).

As shown in FIG. 2, each trailer (2a-2d) is individually connected to a tractor (1) and towed by the tractor (1) to travel.

<Composition of refrigerator>
Although not shown, each refrigerator (10a to 10d) has a refrigerant circuit that performs a refrigeration cycle. A refrigerant circuit is provided with a compressor, a condenser, an expansion valve, and an evaporator. The refrigerator (10) also includes an outside fan for sending outside air to the condenser and an inside fan for sending inside air to the evaporator. When the compressor is actuated, refrigerant circulates in the refrigerant circuit to perform a vapor compression refrigeration cycle. The refrigerator (10) sucks air inside the shipping container (5), cools it in the evaporator, and blows the cooled air out into the space inside the shipping container (5).

Each refrigerator (10a-10d) has a controller (11). As shown in FIG. 4, the controller (11) of each refrigerator (10a-10d) comprises an arithmetic processing unit (12), a memory unit (16) and a communication unit (19). The controller (11) of each refrigerator (10a-10d) adjusts the temperature inside the shipping container (5) to the set temperature. control driving.

The arithmetic processing unit (12) is, for example, a microprocessor comprising an integrated circuit. The arithmetic processing unit (12) functions as a compressor control section (13), an expansion valve control section (14), and a fan control section (15). The compressor control section (13) controls the rotational speed of a compressor provided in the refrigerant circuit of the refrigerator (10). The expansion valve control section (14) controls the degree of opening of an expansion valve provided in the refrigerant circuit of the refrigerator (10). The fan control section (15) controls the rotation speed of the inside fan and the outside fan provided in the refrigerator (10).

The memory unit (16) is, for example, a semiconductor memory comprising an integrated circuit. The memory unit (16) functions as a set temperature storage section (17) and an operation history storage section (18). The set temperature storage unit (17) stores the set value (set temperature) of the internal temperature of the shipping container (5). The operation history storage unit (18) stores a data log regarding the internal temperature of the shipping container (5). This data log is data obtained by recording the internal temperature of the shipping container (5) every predetermined time (for example, every 30 minutes) while the refrigerator (10) is in operation.

The memory unit (16) also stores refrigerator identification information for specifying the refrigerator (10) provided with the controller (11) having the memory unit (16). This memory unit (16) stores a container identification symbol assigned to a transport container (5) to which a corresponding refrigerator (10) is attached, and refrigerator identification information. The container identification code is a code given individually to each shipping container (5) based on the international standard ISO6346.

The communication unit (19) is a unit for communicating with a wireless LAN adapter (31) of a management system (30), which will be described later. The communication unit (19) is connected to the wireless LAN adapter (31) via a signal line and performs wired communication with the wireless LAN adapter (31).

－Outline of management system－
As shown in FIG. 1, the management system (30) includes the same number of wireless LAN adapters (31a to 31d) as the refrigerator (10), one administrator terminal (32), and the refrigerator (10). The same number of driver terminals (35a-35d) are provided. The management system (30) uses wireless LAN adapters (31a to 31d), administrator terminals (32), driver terminals (35a to 35d), and management methods for managing a plurality of refrigerators (10). ) and

<Wireless LAN adapter>
The wireless LAN adapter (31) is a wireless communication unit that wirelessly communicates with the administrator terminal (32) and the driver terminal (35). One wireless LAN adapter (31a-31d) is provided for each refrigerator (10a-10d). That is, the first wireless LAN adapter (31a) is provided in the first refrigerator (10a), the second wireless LAN adapter (31b) is provided in the second refrigerator (10b), and the third wireless LAN adapter (31c) is provided. is provided in the third refrigerator (10c), and the fourth wireless LAN adapter (31d) is provided in the fourth refrigerator (10d).

Each wireless LAN adapter (31a-31d) performs wired communication with the controller (11) of the corresponding refrigerator (10a-10d). Although details will be described later, each wireless LAN adapter (31a-31d) sends an operation command for operating the corresponding refrigerator (10a-10d) to the administrator terminal (32) or the corresponding driver terminal (35a). ~ 35d) and transmits to the controller (11) of the corresponding refrigerator (10a ~ 10d).

<Administrator terminal>
The administrator terminal (32) is a main terminal unit that wirelessly communicates with the wireless LAN adapter (31). This administrator terminal (32) is a smart phone or a tablet terminal in which an application program (33) for an administrator terminal is installed. The administrator terminal (32) has a touch panel display (34) that serves as both a display device and an input device.

The administrator terminal (32) is used by an administrator who manages the operation of the trailer (2) at the distribution center (91) where cargo is loaded into and unloaded from the trailer (2). It is a terminal that is assumed to be used.

An application program (33) installed in the administrator terminal (32) is configured to allow the administrator terminal (32) to wirelessly communicate with all the wireless LAN adapters (31a-31d). Therefore, the administrator terminal (32) can wirelessly communicate with the wireless LAN adapters (31a to 31d) provided in all the refrigerators (10) managed by the management system (30). Then, the administrator terminal (32) performs an operation for operating the refrigerators (10a to 10d) corresponding to each wireless LAN adapter (31a to 31d) for all the wireless LAN adapters (31a to 31d). Can send commands.

The administrator terminal (32) receives a command to start each refrigerator (10a to 10d), a command to stop each refrigerator (10a to 10d), and a controller (11) for each refrigerator (10a to 10d). ) can be sent to the wireless LAN adapters (31a to 31d) as operation commands.

In addition, the application program (33) installed in the administrator terminal (32) is installed on the administrator terminal (32) only when the administrator terminal (32) is located within the predetermined permitted area (90). 32) to execute a predetermined process. As shown in FIG. 3, an area including the entire distribution center (91) is usually set as the permitted area (90). Therefore, the administrator terminal (32) can receive communication radio waves emitted by the wireless LAN adapters (31a to 31d), and the administrator terminal (32) is located within the permitted area (90). Communication with the wireless LAN adapters (31a to 31d) can be performed only when

<Driver terminal>
The driver terminal (35) is a sub terminal unit that wirelessly communicates with the wireless LAN adapter (31). This driver terminal (35) is a smart phone or tablet terminal in which an application program (36) for the driver terminal is installed. The driver terminal (35) has a touch panel display (37) that serves as both a display device and an input device. The driver terminal (35) also includes a camera unit (38) having a lens section and an imaging device. The lens portion of the camera unit (38) is exposed to the rear surface of the driver terminal (35) (that is, the surface opposite to the display (37)).

The driver terminal (35) is a terminal intended to be used by the driver of the tractor (1) that pulls the trailer (2).

An application program (36) installed in the driver terminal (35) enables the driver terminal (35) to wirelessly communicate only with one wireless LAN adapter (31) corresponding to the driver terminal (35). configured as For this reason, each driver terminal (35a-35d) is connected to the wireless LAN adapter (31a ~31d) can communicate wirelessly. Then, each driver terminal (35a-35d) operates a refrigerator (10a-10d) corresponding to each wireless LAN adapter (31a-31d) for one corresponding wireless LAN adapter (31a-31d). It is possible to send an operation command for

Therefore, the first driver terminal (35a) can transmit an operation command for operating the first refrigerator (10a) of the first trailer (2a) only to the first wireless LAN adapter (31a). be. Also, the second driver terminal (35b) can transmit an operation command for operating the second refrigerator (10b) of the second trailer (2b) only to the second wireless LAN adapter (31b). be. Also, the third driver terminal (35c) can transmit an operation command for operating the third refrigerator (10c) of the third trailer (2c) only to the third wireless LAN adapter (31c). be. Further, the fourth driver terminal (35d) can transmit an operation command for operating the fourth refrigerator (10d) of the fourth trailer (2d) only to the fourth wireless LAN adapter (31d). be.

Each driver terminal (35a-35d) sends a command to change the "set temperature stored in the controller (11) of the corresponding refrigerator (10a-10d)" as an operation command to the wireless LAN adapter (31a-31d). can be sent to Unlike the administrator terminal (32), the driver terminals (35a-35d) issue commands to start the corresponding refrigerators (10a-10d) and to stop the refrigerators (10a-10d). It cannot be sent to the wireless LAN adapter (31a to 31d) as an operation command.

In addition, the application program (36) installed in the driver terminal (35) allows the driver terminal (35) to be connected to the corresponding wireless terminal only for a predetermined permission period after receiving permission from the administrator terminal (32). It is configured to be communicable with a LAN adapter (31).

Here, the driver terminal (35) used by the driver of the tractor (1) travels with the tractor (1) pulling the trailer (2) to a place far away from the distribution center (91). Therefore, the application program (36) installed in the driver terminal (35) is configured not to limit the area in which the driver terminal (35) can wirelessly communicate with the corresponding wireless LAN adapter (31).

－Wireless LAN Adapter－
As shown in FIG. 5, the wireless LAN adapter (31) includes an arithmetic processing unit (40), a memory unit (45), and a communication unit (48). The wireless LAN adapter (31) mediates the transfer of information between the administrator terminal (32) and the corresponding driver terminal (35) and the controller (11) of the corresponding refrigerator (10).

The arithmetic processing unit (40) is, for example, a microprocessor comprising an integrated circuit. By executing a program installed in the wireless LAN adapter (31), the arithmetic processing unit (40) performs a communication target identification section (41), an operation command transmission section (42), a driving information transmission section (43), and It functions as a driving history transmission unit (44).

The memory unit (45) is, for example, a semiconductor memory comprising an integrated circuit. The program installed in the wireless LAN adapter (31) is recorded in the memory unit (45). The memory unit (45) also functions as a refrigerator identification information storage section (46) and a communication information storage section (47).

The communication unit (48) is a communication module that wirelessly communicates with the administrator terminal (32) and the corresponding driver terminal (35). Further, the communication unit (48) can perform wired communication with the controller (11) of the refrigerator (10) compatible with the wireless LAN adapter (31).

<Communication target identification part>
A communication target identification unit (41) causes the communication unit (48) to preferentially communicate with the administrator terminal (32) out of the administrator terminal (32) and the driver terminal (35).

Specifically, when the communication unit (48) receives a connection request from the driver terminal (35) while the communication unit (48) is communicating with the administrator terminal (32), the communication target identification unit (41) sends the communication unit (48) Deny the connection request from the driver terminal (35). Further, when the communication unit (48) receives a connection request from the administrator terminal (32) while the communication unit (48) is communicating with the driver terminal (35), the communication target identification unit (41) sends the communication unit (48) the driver terminal. (35) and communicate with the administrator terminal (32).

In this way, the communication target identification unit (41) is configured to detect when the communication unit (48) is not communicating with the administrator terminal (32) and when the administrator terminal (32) is in contact with the communication unit (48). The communication unit (48) is permitted to communicate with the driver terminal (35) while no connection request has been sent.

<Operation command transmitter>
The operation command transmission unit (42) transmits the operation command received from the manager terminal (32) or the corresponding driver terminal (35) from the communication unit (48) to the controller (11) of the corresponding refrigerator (10). ).

<Operation information transmission part>
The operation information transmission unit (43) transmits the operation information about the operation state of the corresponding refrigerator (10) to the controller ( 11) and send it to the administrator terminal (32) or the corresponding driver terminal (35). In the present embodiment, the operation information transmitter (43) transmits the set temperature stored in the controller (11) of the corresponding refrigerator (10) and the transport container (5) to which the corresponding refrigerator (10) is attached. ) are acquired as operation information.

<Operating history transmission part>
The operation history transmission unit (44) is recorded in the operation history storage unit (18) of the controller (11) of the refrigerator (10) from the refrigerator (10) designated by the manager terminal (32). In addition, it acquires the "data log on the temperature inside the shipping container (5)" and transmits the acquired data log to the administrator terminal (32).

<Refrigerator identification information storage unit>
The refrigerator identification information storage unit (46) stores refrigerator identification information for specifying the refrigerator (10) to which the wireless LAN adapter (31) is attached. The refrigerator identification information is recorded in the refrigerator identification information storage section (46) when the wireless LAN adapter (31) is attached to the refrigerator (10).

The refrigerator identification information storage unit (46) of the present embodiment stores the container identification symbol assigned to the transportation container (5) to which the refrigerator (10) compatible with the wireless LAN adapter (31) is attached, and the transportation Vehicle registration information written on the license plate (3) of the trailer (2) loaded with the container (5) is stored as refrigerator identification information. The container identification symbol is obtained from the controller (11) of the refrigerator (10) by the wireless LAN adapter (31). Vehicle registration information is acquired from the administrator terminal (32) by the wireless LAN adapter (31).

<Communication information storage unit>
The communication information storage unit (47) stores communication information for identifying the wireless LAN adapter (31). This communication information is information necessary for the administrator terminal (32) and the driver terminal (35) to communicate with the wireless LAN adapter (31).

Specifically, the communication information storage unit (47) stores an SSID (Service Set Identifier) and an encryption key as communication information. SSID is a character string for identifying a wireless LAN access point. The communication information storage section (47) stores an SSID for identifying the wireless LAN adapter (31) having the memory unit (45) having the communication information storage section (47). The encryption key is a password required when the administrator terminal (32) and driver terminal (35) communicate with the wireless LAN adapter (31). A communication information storage section (47) stores an encryption key set for a wireless LAN adapter (31) having a memory unit (45) having the communication information storage section (47).

- Configuration of administrator terminal -
As shown in FIG. 6, the administrator terminal (32) comprises an arithmetic processing unit (50), a memory unit (60), and a communication unit (68). The administrator terminal (32) wirelessly communicates with all the wireless LAN adapters (31) that make up the management system (30).

The arithmetic processing unit (50) is, for example, a microprocessor comprising an integrated circuit. An arithmetic processing unit (50) executes an application program (33) installed in an administrator terminal (32) to obtain a location information acquisition section (51), a permitted area setting section (52), a location determination section ( 53), a user identification unit (54), an operation command unit (55), a permission granting unit (56), a driving information acquisition unit (57), an information display unit (58), and a driving history acquisition unit (59). do.

The memory unit (60) is, for example, a semiconductor memory comprising an integrated circuit. An application program (33) installed in the administrator terminal (32) is recorded in the memory unit (60). The memory unit (60) includes an allowed area storage section (61), a position information storage section (62), a communication information storage section (63), a user identification information storage section (64), and a refrigerator identification information storage section. (65), a driving information storage unit (66), and a driving history storage unit (67).

The communication unit (68) is a communication module that wirelessly communicates with the wireless LAN adapter (31). The communication unit (68) selects one wireless LAN adapter (31) for wireless communication from among a plurality of wireless LAN adapters (31) with which the administrator terminal (32) can communicate. It is specified using the stored SSID.

<Location information acquisition part>
A location information acquisition unit (51) acquires location information indicating the location of an administrator terminal (32). The location information acquisition unit (51) uses information received from GPS (Global Positioning System) satellites to determine the location of the administrator terminal (32) (specifically, the location of the administrator terminal (32)). latitude and longitude of the point to be measured). In this way, the positional information acquisition unit (51) acquires "the latitude and longitude of the point where the administrator terminal (32) exists" as "positional information of the administrator terminal (32)".

A position information acquisition unit (51) acquires "position information of the administrator terminal (32)" every time a predetermined time (for example, one minute) elapses and stores the position information in the memory unit (60). Record in (62). The "location information of the administrator terminal (32)" recorded in the location information storage unit (62) is updated every time the location information acquisition unit (51) acquires the "location information of the administrator terminal (32)". Updated.

<Permitted area setting part>
A permitted area setting unit (52) performs area setting processing for defining a permitted area (90). The permission area (90) is an area where the administrator terminal (32) can execute processing based on the application program (33). As shown in FIG. 3, the allowable area setting unit (52) of the present embodiment defines a circular area centered at the reference position CP and having a reference radius Ra as the allowable area (90).

The permitted area setting unit (52) requests the user of the administrator terminal (32) to identify the reference position. For example, the permitted area setting section (52) displays a message "Do you want to set the current position as the reference position?" on the display (34). Then, when the user of the administrator terminal (32) taps the "OK" button displayed on the display (34) together with the message, the allowed area setting unit (52) sets the administrator terminal (32) at that time. ) as the reference position. In other words, the permitted area setting unit (52) converts the “latitude and longitude of the point where the administrator terminal (32) is present” acquired by the position information acquiring unit (51) at that time into the “latitude of the reference location”. and longitude”.

Also, the permitted area setting unit (52) requests the user of the administrator terminal (32) to input a reference radius. For example, the permitted area setting unit (52) displays on the display (34) "a message prompting the user of the administrator terminal (32) to input a reference radius", and the user of the administrator terminal (32) A numerical value (eg, 50 m) input by is obtained as the reference radius.

The permitted area setting section (52) records the acquired reference position and reference radius in the permitted area storage section (61) of the memory unit (60) as permitted area identification information for identifying the permitted area (90). .

<Position determination part>
A position determination unit (53) performs position determination processing for determining whether or not the position of the administrator terminal (32) is inside the permitted area (90). A position determination unit (53) performs position determination processing each time the position information acquisition unit (51) acquires “position information of the administrator terminal (32)”.

Specifically, the position determination section (53) reads out the permitted area specifying information from the permitted area storage section (61) of the memory unit (60), and reads "Administrator Read out the location information of the terminal (32). Then, the position determination section (53) determines whether or not the "position of the administrator terminal (32)" is inside the "allowed area (90) specified by the allowed area specifying information".

The position determination section (53) also performs area restriction processing. Specifically, when the position determination unit (53) determines that the “position of the administrator terminal (32)” is inside the permitted area (90), the application program (33 ) to continue execution. On the other hand, when the position determination unit (53) determines that the "position of the administrator terminal (32)" is outside the permitted area (90), the application program (33) is sent to the administrator terminal (32). terminate execution.

<User identification part>
The user identification unit (54) requests the "user of the administrator terminal (32)" to input "user identification information indicating that the user of the administrator terminal (32) is a specific person". User identification information request processing is performed. Specifically, the user identification unit (54) causes the display (34) to display a password input screen (105), which will be described later, and provides the user identification information to the user of the administrator terminal (32). Prompt for password.

The user identification section (54) stores the password (input password) entered by the user on the password entry screen (105) and the password (registered password) stored in the user identification information storage section (64) of the memory unit (60). password). If the input password matches the registered password, the user identification section (54) causes the arithmetic processing unit (50) to continue execution of the application program (33). On the other hand, if the input password does not match the registered password, the user identification section (54) causes the arithmetic processing unit (50) to interrupt the execution of the application program (33), and the password matching the registered password is entered by the user. waits for input by

<Operation command unit>
The operation command section (55) performs transmission processing. That is, when the user of the administrator terminal (32) inputs an "operation command for operating the refrigerator (10)", the operation command unit (55) sends the input operation command to the wireless LAN adapter. Send to (31).

The operation command unit (55) sends information about the specified refrigerator (10) to the wireless LAN adapter (31) corresponding to the refrigerator (10) specified by the user of the administrator terminal (32). Send an operation command. Specifically, the operation command unit (55) commands to start each refrigerator (10a to 10d), to stop each refrigerator (10a to 10d), and to control each refrigerator (10a to 10d). A command to change the set temperature stored in the device (11) can be sent as an operation command to the wireless LAN adapters (31a to 31d).

<Licensing Department>
The permission granting section (56) performs permission processing for giving the permission information (95) to the driver terminal (35). The permission information (95) is information for permitting wireless communication with one wireless LAN adapter (31) to the driver terminal (35). The permission granting section (56) performs processing for creating permission information (95) and displaying it on the display (34) as permission processing.

A permission granting unit (56) permits communication with a wireless LAN adapter (31) provided in a refrigerator (10) specified by a user of an administrator terminal (32). Create permission information for permitting the driver terminal (35). The permission granting unit (56) stores communication information about the wireless LAN adapter (31) provided in the "refrigerating machine (10) specified by the user of the administrator terminal (32)" in the memory unit (60). ).

The communication information is the SSID and encryption key stored in the communication information storage section (63) of the memory unit (60). This information for communication is information necessary for wireless communication with the wireless LAN adapter (31) corresponding to the "driver terminal (35) to which the permission information (95) is given by the administrator terminal (32)". be.

The permission granting section (56) prepares permission information (95) by arranging the communication information about one wireless LAN adapter (31) read from the memory unit (60) and the time at that time. The permission information (95) contains the SSID and encryption key for one wireless LAN adapter (31), and the time when the permission granting section (56) performed the processing for creating the permission information (95) in a predetermined order. It is information arranged by .

A permission granting section (56) encrypts the created permission information and converts the encrypted permission information (95) into a matrix type two-dimensional code. The permission granting unit (56) of this embodiment converts the encrypted permission information (95) into a QR code (registered trademark) defined in the international standard ISO/IEC18004. Then, the permission granting section (56) displays the permission information (95) converted into the QR code on the display (34) of the administrator terminal (32).

<Driving information acquisition part>
The driving information obtaining section (57) performs driving information obtaining processing. The operation information acquisition unit (57) acquires operation information of the refrigerator (10) corresponding to each wireless LAN adapter (31) from all wireless LAN adapters (31) with which the administrator terminal (32) can communicate. get.

Specifically, the operation information acquisition unit (57) receives the information from the refrigerator (10) corresponding to each wireless LAN adapter (31) via the operation information transmission unit (43) of each wireless LAN adapter (31). The set temperature stored by the controller (11) of the refrigerator (10) and the measured temperature inside the shipping container (5) to which the refrigerator (10) is attached are acquired as operation information. The driving information acquisition section (57) records the acquired driving information in the driving information storage section (66) of the memory unit (60).

The operation information acquisition section (57) acquires operation information regarding each refrigerator (10) each time a predetermined time period (for example, one minute) elapses. The driving information acquisition section (57) updates the driving information recorded in the driving information storage section (66) every time it acquires the driving information.

<Information display>
The information display section (58) performs operation information display processing. The information display section (58) displays the operating information of each refrigerator (10) recorded in the operating information storage section (66) of the memory unit (60) on the display (34) of the administrator terminal (32). indicate. Further, the information display section (58) displays the refrigerator identification information of each refrigerator (10) recorded in the refrigerator identification information storage section (65) of the memory unit (60) to the administrator terminal (32). display on the display (34).

<Driving history acquisition part>
The operation history acquisition unit (59) obtains the operation history of the controller (11) of the refrigerator (10) via the operation history transmission unit (44) of the arithmetic processing unit (40) provided in the wireless LAN adapter (31). Acquire the "data log regarding the temperature inside the shipping container (5)" recorded in the history storage unit (18). The driving history acquisition section (59) records the acquired data log in the driving history storage section (67) of the memory unit (60).

<Permitted area memory>
A permitted area storage unit (61) stores the reference position and the reference radius acquired by the permitted area setting unit (52) as permitted area identification information for identifying the permitted area (90).

Note that the application program (33) installed in the administrator terminal (32) of this embodiment performs the process of changing the permitted area identification information recorded in the permitted area storage unit (61) on the administrator terminal (32). ) does not run. Therefore, unless the application program (33) is erased from the administrator terminal (32) and installed again, the permitted area specifying information recorded in the permitted area storage unit (61) cannot be changed.

<Position information memory>
The location information storage unit (62) stores the “location information of the administrator terminal (32)” acquired by the location information acquisition unit (51). As described above, the "location information of the administrator terminal (32)" recorded in the location information storage unit (62) is acquired by the location information acquisition unit (51) from the "location information of the administrator terminal (32)". is updated to the latest "location information of the administrator terminal (32)".

<Communication information storage unit>
A communication information storage unit (63) stores, as communication information, SSIDs and encryption keys relating to each wireless LAN adapter (31) with which the administrator terminal (32) can communicate. This communication information is information for identifying the wireless LAN adapter (31) of the communication partner.

The administrator terminal (32) acquires the SSID and encryption key from each wireless LAN adapter (31). A communication information storage unit (63) stores the SSID and encryption key acquired by the administrator terminal (32) in association with the wireless LAN adapter (31) to which the SSID and encryption key are assigned.

<User identification information storage unit>
A user identification information storage unit (64) stores user identification information indicating that the user of the administrator terminal (32) is a specific person. The user identification information storage section (64) of this embodiment stores a pre-registered password.

<Refrigerator identification information storage unit>
A refrigerator identification information storage unit (65) stores refrigerator identification information of a refrigerator (10) corresponding to each wireless LAN adapter (31) with which an administrator terminal (32) can communicate.

Here, the arithmetic processing unit (50) of the administrator terminal (32) reads from the refrigerator identification information storage section (46) of the memory unit (45) of each wireless LAN adapter (31) to the wireless LAN adapter (31). ) to acquire the container identification symbol given to the transport container (5) to which the refrigerator (10) corresponding to the ) is attached.

In addition, the arithmetic processing unit (50) of the administrator terminal (32) transfers the vehicle registration information written on the license plate (3) of the trailer (2) on which each shipping container (5) is loaded to the administrator. Acquisition processing is performed by making the user of the terminal (32) input. The vehicle registration information acquired by the arithmetic processing unit (50) is transmitted to the wireless LAN adapter (31) corresponding to each trailer (2), and the refrigerator identification information is stored in the memory unit (45) of the wireless LAN adapter (31). Recorded in part (46).

The refrigerator identification information storage unit (65) stores the container identification symbol and vehicle registration information acquired by the above-described processing (refrigerator identification information acquisition processing) of the arithmetic processing unit (50) as the container identification symbol and vehicle registration information. is stored in association with the wireless LAN adapter (31) corresponding to the refrigerator (10) specified by.

<Driving information storage unit>
The operating information storage section (66) stores the operating information of each refrigerator (10) acquired by the operating information acquiring section (57). The operation information storage unit (66) associates the chiller (10) corresponding to each wireless LAN adapter (31) with which the administrator terminal (32) can communicate, and the operation information about each chiller (10). Remember. As described above, the "operation information of the refrigerator (10)" recorded in the operation information storage unit (66) is obtained every time the operation information acquisition unit (57) acquires the "operation information of the refrigerator (10)". , it is updated to the latest "operation information of the refrigerator (10)".

<Operating history memory unit>
The driving history storage unit (67) acquires the "data log regarding the internal temperature of the shipping container (5)" acquired by the driving history acquisition unit (59). The driving history storage unit (67) stores the acquired "data log regarding the temperature inside the shipping container (5)" in association with the refrigerator (10) from which the data log is acquired.

- Operation of administrator terminal -
The operation of the administrator terminal (32) will be described with reference to the flowchart of FIG.

<Step ST11>
When the user of the administrator terminal (32) inputs an instruction to execute the application program (33), the administrator terminal (32) starts executing the application program (33) in step ST11.

<Step ST12>
In the next step ST12, the administrator terminal (32) displays the GPS information acquisition screen (100) shown in FIG. 9 on the display (34). In addition, in the administrator terminal (32), the location information acquisition unit (51) acquires "location information of the administrator terminal (32)". Specifically, the location information acquisition unit (51) uses information received from GPS satellites to identify the location of the administrator terminal (32). The GPS information acquisition screen (100) continues to be displayed on the display (34) until acquisition of the "location information of the administrator terminal (32)" by the location information acquisition unit (51) is completed.

When the position information acquisition section (51) acquires the "position information of the administrator terminal (32)", the position determination section (53) performs position determination processing. Then, when the position determining section (53) determines that "the position of the administrator terminal (32)" is inside the permitted area (90), the administrator terminal (32) proceeds to the next step ST13. do. On the other hand, when the position determination unit (53) determines that the "position of the administrator terminal (32)" is outside the permitted area (90), the administrator terminal (32) executes the application program (33). End execution.

<Step ST13>
In the next step ST13, the user identification section (54) of the administrator terminal (32) performs user identification information request processing. Specifically, the user identification unit (54) displays the password input screen (105) shown in FIG. identification information). The user identification section (54) also reads the password (registered password) stored in the user identification information storage section (64) of the memory unit (60).

When the user of the administrator terminal (32) enters a password into the administrator terminal (32), the user identification unit (54) compares the password (input password) entered by the user with the registered password. do. Then, only when the input password matches the registered password, the user identification section (54) permits the application program (33) to continue executing. In other words, the administrator terminal (32) moves from step ST13 to step ST14 only when the input password matches the registered password, and otherwise stays at step ST13.

<Step ST14>
At step ST14, the administrator terminal (32) displays the trailer selection screen (110) shown in FIG. 11 on the display (34). This trailer selection screen is a screen for the user of the administrator terminal (32) to specify the wireless LAN adapter (31) with which the administrator terminal (32) wirelessly communicates.

As shown in FIG. 11, the trailer selection screen (110) is provided with a plurality of trailer display areas (111) and one connection button (113). The refrigerator identification information of the refrigerator (10) corresponding to each trailer (2) is displayed in each trailer display area (111). That is, each trailer display area (111) displays the vehicle registration information of the corresponding trailer (2) and the container identification symbol of the shipping container (5) attached to the corresponding trailer (2). In addition, one check box (112) is displayed in each trailer display area (111).

The user of the administrator terminal (32) puts a check mark in the check box (112) in the trailer display area (111) displaying the chiller identification information related to the trailer (2) to be selected, and presses the connection button ( 113), the administrator terminal (32) proceeds to the next step ST15.

<Step ST15>
In step ST15, the communication unit (68) of the administrator terminal (32) connects to the wireless communication provided in the refrigerator (10) corresponding to the trailer (2) selected by the user of the administrator terminal (32). Wireless communication with the LAN adapter (31) is started. At that time, in the administrator terminal (32), the arithmetic processing unit (50) is selected from the communication information storage section (63) of the memory unit (60) by the user of the administrator terminal (32). Read out the SSID and encryption key for the wireless LAN adapter (31) corresponding to the trailer (2). Then, the arithmetic processing unit (50) causes the communication unit (68) to start wireless communication with the wireless LAN adapter (31) using the SSID and encryption key read from the communication information storage section (63).

<Step ST16>
In the next step ST16, the driving information acquisition section (57) of the administrator terminal (32) performs a driving information acquisition process.

In the operation information acquisition process, the operation information acquisition section (57) acquires the operation information of the refrigerator (10) corresponding to the wireless LAN adapter (31) from the wireless LAN adapter (31) that started wireless communication in step ST15. get. Specifically, the operation information acquisition unit (57) obtains the set temperature stored by the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31) that started wireless communication in step ST15, Measured temperature inside the shipping container (5) to which the machine (10) is attached is acquired as operation information.

The driving information acquisition section (57) records the acquired driving information in the driving information storage section (66) of the memory unit (60).

<Step ST17>
In the next step ST17, the administrator terminal (32) displays the monitor screen (120) shown in FIG. 12 on the display (34).

As shown in FIG. 12, the monitor screen (120) is provided with a trailer display area (121), a driving information display area (122), and an alarm display area (123). A set temperature change button (124) is displayed on the monitor screen (120), and one of a freezer stop button (125) and a freezer start button (126) is selectively displayed.

The trailer display area (121) displays the refrigerator identification information of the refrigerator (10) corresponding to the trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110). . That is, in the trailer display area (121), the vehicle registration information of the trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110) and the information attached to the trailer (2) are displayed. The container identification symbol of the shipping container (5) is displayed.

The operation information display area (122) displays the operation information of the refrigerator (10) corresponding to the trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110). That is, in the operation information display area (122), the controller (11) of the refrigerator (10) corresponding to the trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110) and the measured value of the internal temperature of the shipping container (5) to which the refrigerator (10) is attached are displayed.

The alarm display area (123) displays information (warning information) necessary to notify the user of the administrator terminal (32) of the operating state of the refrigerator (10). This warning information includes, for example, an indication that the refrigerator (10) is stopped, and a warning that the temperature inside the shipping container (5) is out of the set range (for example, set temperature ±0.5°C). display to the effect that the

FIG. 13 shows a monitor screen (120) displaying "indication that the refrigerator (10) is stopped" in the alarm display area (123). In this case, the monitor screen (120) displays a freezer start button (126) instead of the freezer stop button (125).

When the user of the administrator terminal (32) taps the set temperature change button (124), the administrator terminal (32) enters a state of accepting the input of the change value of the set temperature. When the user of the administrator terminal (32) inputs the changed value of the set temperature, the operation command unit (55) of the administrator terminal (32) converts the input changed value of the set temperature into "freezing It is transmitted to the wireless LAN adapter (31) as an operation command for operating the machine (10). At that time, the operation command unit (55) selects a wireless device corresponding to the refrigerator (10) attached to the "trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110)". An operation command is transmitted to the LAN adapter (31).

The operation command transmission unit (42) of the wireless LAN adapter (31) transmits the operation command received from the administrator terminal (32) to the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31). ).

The controller (11) of the refrigerator (10) receives the operation command from the wireless LAN adapter (31), stores the "changed value of the set temperature" received as the operation command in the memory unit (16) as the updated set temperature. Record in the set temperature storage section (17). Then, the controller (11) stores the measured value of the internal temperature of the shipping container (5) to which the refrigerator (10) is attached in the set temperature storage unit (17) as "updated set temperature ”, the operation of the refrigerator (10) is controlled.

When the user of the administrator terminal (32) taps the freezer stop button (125), the administrator terminal (32) sends a signal (stop signal) for stopping the freezer to the "freezer (10 ) to the wireless LAN adapter (31) as an operation command for operating ). Further, when the user of the administrator terminal (32) taps the refrigerator activation button (126), the administrator terminal (32) sends a signal (activation signal) for activating the refrigerator as "refrigerator (10) is transmitted to the wireless LAN adapter (31) as an operation command for operating (10).

The operation command transmission unit (42) of the wireless LAN adapter (31) transmits the operation command received from the administrator terminal (32) to the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31). ).

The controller (11) of the refrigerator (10) stops the refrigerator (10) when receiving the stop signal as the operation command from the wireless LAN adapter (31). Further, the controller (11) of the refrigerator (10) activates the refrigerator (10) when receiving the activation signal as the operation command from the wireless LAN adapter (31).

<Step ST18>
The administrator terminal (32) can shift between steps ST17, ST18 and ST19. In step ST18, the administrator terminal (32) displays the driving history acquisition screen (130) shown in FIG. 14 on the display (34).

As shown in FIG. 14, the driving history acquisition screen (130) is provided with a trailer display area (121) and a driving history selection area (131). A driving history acquisition button (132) is also displayed on the driving history acquisition screen (130).

Similar to the monitor screen (120), the trailer display area (121) displays the chiller (10) corresponding to the trailer (2) selected by the user of the administrator terminal (32) on the trailer selection screen (110). refrigerator identification information is displayed. The driving history selection area (131) displays options for selecting a period for which driving history is to be obtained.

When the user of the administrator terminal (32) selects the "driving history target period" in the driving history selection area (131) and taps the driving history acquisition button (132), the driving history acquisition unit (59) Predetermined processing is performed. That is, the driving history acquisition unit (59) stores the driving history of the refrigerator (10) in the "driving history target period" selected in the driving history selection area (131) as the "trailer selection screen (110). It is obtained from the controller (11) of the refrigerator (10) corresponding to the trailer (2)'' selected by the user of the terminal (32). The operation history acquisition section (59) records the acquired operation history of the refrigerator (10) in the operation history storage section (67) of the memory unit (60).

<Step ST19>
In step ST19, the administrator terminal (32) displays the driver authentication screen (135) shown in FIG. 15 on the display (34). The driver authentication screen (135) is a screen for giving permission information (95) to the driver terminal (35).

As shown in FIG. 15, the driver authentication screen (135) is provided with a trailer display area (121) and a permission information display area (136). A trailer selection button (137) is also displayed on the driver authentication screen (135).

Similar to the monitor screen (120), the trailer display area (121) displays the refrigerator ( 10) refrigerator identification information is displayed. The permission information display area (136) displays permission information (95) created by the permission granting section (56) and converted into a QR code.

When the user of the administrator terminal (32) taps the trailer selection button (137), the administrator terminal (32) returns to step ST14 to continue processing.

－Configuration of driver terminal－
As shown in FIG. 7, the driver terminal (35) comprises an arithmetic processing unit (70), a memory unit (80) and a communication unit (85). The driver terminal (35) performs wireless communication with one wireless LAN adapter (31) corresponding to the driver terminal (35).

The arithmetic processing unit (70) is, for example, a microprocessor comprising an integrated circuit. The arithmetic processing unit (70) executes an application program (36) installed in the administrator terminal (32) to obtain a permission acquisition section (71), a permission period setting section (72), a permission period determination section ( 73), an operation command section (74), a driving information acquisition section (75), and an information display section (76).

The memory unit (80) is, for example, a semiconductor memory comprising an integrated circuit. The memory unit (80) stores an application program (36) installed in the driver terminal (35). The memory unit (80) also functions as a permission information storage section (81), a permission period storage section (82), an operation information storage section (83), and a refrigerator identification information storage section (84).

The communication unit (68) is a communication module that wirelessly communicates with the wireless LAN adapter (31). The communication unit (68) performs wireless communication only with the wireless LAN adapter (31) having the SSID stored in the memory unit (60) (ie, one wireless LAN adapter (31) corresponding to the driver terminal (35)). conduct.

<Permit Acquisition Department>
The permission acquisition unit (71) performs permission acquisition processing for acquiring permission information from the administrator terminal (32).

As described above, the permission granting unit (56) of the administrator terminal (32) displays the permission information (95) converted into the QR code on the display (34) of the administrator terminal (32). The permission acquisition unit (71) reads and acquires the permission information (95) displayed on the display (34) of the administrator terminal (32) as permission acquisition processing.

Specifically, the permission acquisition unit (71) activates the camera unit (38) of the driver terminal (35) and provides the user of the driver terminal (35) with the display of the administrator terminal (32). Prompt to read the QR code (permission information (95)) displayed in (34). When the user of the driver terminal (35) holds the lens of the camera unit (38) of the driver terminal (35) over the display (34) of the administrator terminal (32), the camera unit (38) captures an image. The device takes an image of the QR code displayed on the administrator terminal (32). Then, the permission obtaining section (71) obtains permission information (95) by decoding the QR code obtained from the camera unit (38).

As described above, the permission information (95) includes the SSID and encryption key, which are communication information, and the time when the administrator terminal (32) created the permission information (95). Information arranged in order. The permission obtaining section (71) records the obtained permission information (95) in the permission information storage section (81) of the memory unit (80).

<Permission period setting part>
A permission period setting section (72) sets a permission period during which the driver terminal (35) can communicate with the wireless LAN adapter (31). The permission period setting section (72) of this embodiment sets the permission period to be 24 hours from the time when the driver terminal (35) acquires the permission information (95). Note that the length of the permitted period (24 hours) shown in the present embodiment is merely an example.

Specifically, the permission period setting section (72) sets the time when the permission acquisition section (71) acquires the permission information (95) as the start time of the permission period to the permission period storage section (82) of the memory unit (80). to record. The permission period setting section (72) also records the time 24 hours after the start time of the permission period in the permission period storage section (82) of the memory unit (80) as the end time of the permission period.

<Permitted period judgment unit>
The permitted period determination section (73) performs period limit processing. The time limit process is a process of permitting wireless communication between the driver terminal (35) and the wireless LAN adapter (31) only within the permitted period.

Specifically, the permitted period determination section (73) acquires the current time. The permitted period determining section (73) also reads the end time of the permitted period from the permitted period storage section (82) of the memory unit (80). Then, the permitted period determining section (73) compares the current time with the "end time of the permitted period". If the permitted period determination unit (73) determines that the current time is before the "permitted period end time", it causes the driver terminal (35) to continue executing the application program (36). On the other hand, when the permitted period determining section (73) determines that the current time is later than the "end time of the permitted period", the driver terminal (35) terminates the execution of the application program (36).

<Operation command unit>
The operation command section (74) performs transmission processing. That is, when the user of the driver terminal (35) inputs an "operation command for operating the refrigerator (10)", the operation command unit (74) transmits the input operation command to the wireless LAN adapter ( 31). The operation command unit (74) issues an operation command for the refrigerator (10) corresponding to the wireless LAN adapter (31) to one wireless LAN adapter (31) with which the driver terminal (35) can communicate. Send.

The operation command section (74) can transmit, as an operation command, a command to change the set temperature stored in the controller (11) of the refrigerator (10) to the wireless LAN adapter (31). Unlike the operation command unit (55) of the manager terminal (32), the operation command unit (74) of the driver terminal (35) issues a command to start the refrigerator (10) and a command to start the refrigerator (10). A stop command cannot be sent to the wireless LAN adapter (31).

<Driving information acquisition unit>
The driving information obtaining section (75) performs driving information obtaining processing. The operation information acquisition unit (75) acquires the operation information of the refrigerator (10) corresponding to the wireless LAN adapter (31) from one wireless LAN adapter (31) with which the driver terminal (35) can communicate. do.

Specifically, the operation information acquisition unit (75) obtains information from the refrigerator (10) corresponding to the wireless LAN adapter (31) via the operation information transmission unit (43) of the wireless LAN adapter (31). The set temperature stored by the controller (11) of the refrigerator (10) and the measured temperature inside the shipping container (5) to which the refrigerator (10) is attached are acquired as operation information. The driving information acquisition section (75) records the acquired driving information in the driving information storage section (83) of the memory unit (80).

The operating information acquisition section (75) acquires operating information regarding the refrigerator (10) each time a predetermined time period (for example, one minute) elapses. The driving information acquisition section (75) updates the driving information recorded in the driving information storage section (83) every time it acquires the driving information.

<Information display>
The information display section (76) performs identification information display processing. The information display section (76) displays the refrigerator identification information of the refrigerator (10) recorded in the refrigerator identification information storage section (84) of the memory unit (80) on the display (37) of the driver terminal (35). to display.

The information display section (76) also performs a driving information display process. The information display section (76) displays the operating information of the refrigerator (10) recorded in the operating information storage section (83) of the memory unit (80) on the display (37) of the driver terminal (35).

<Permission information storage unit>
The permission information storage section (81) stores the permission information (95) acquired by the permission acquisition section (71). Specifically, the permission information storage unit (81) stores the SSID and encryption key, which are communication information related to the wireless LAN adapter (31) with which the driver terminal (35) can communicate, and the administrator terminal (32). It stores the time when the processing for creating permission information (95) was performed. The communication information stored in the permission information storage unit (81) is information for identifying one wireless LAN adapter (31) with which the driver terminal (35) can communicate.

<Permission period storage part>
The permitted period storage section (82) stores the permitted period set by the permitted period setting section (72). Specifically, the permitted period storage section (82) stores the start time and end time of the permitted period set by the permitted period setting section (72).

<Driving information storage unit>
The operating information storage section (83) stores the operating information of the refrigerator (10) acquired by the operating information acquisition section (75). Specifically, the driving information storage unit (83) stores the set temperature for the refrigerator (10) corresponding to the wireless LAN adapter (31) with which the driver terminal (35) can communicate, and the temperature to which the refrigerator (10) is attached. Measured temperature inside the shipping container (5) obtained is stored as operation information. As described above, the "operating information of the refrigerator (10)" recorded in the operating information storage unit (83) is stored every time the "operating information of the refrigerator (10)" is acquired by the operating information storage unit (83). , it is updated to the latest "operation information of the refrigerator (10)".

<Refrigerator identification information storage unit>
The refrigerator identification information storage unit (84) stores refrigerator identification information of the refrigerator (10) corresponding to the wireless LAN adapter (31) with which the driver terminal (35) can communicate.

Here, the arithmetic processing unit (70) of the driver terminal (35) performs refrigerator information acquisition processing. Specifically, the arithmetic processing unit (70) stores the refrigerator identification information storage section (46) in the memory unit (45) of the wireless LAN adapter (31) corresponding to the wireless LAN adapter (31). Acquire the container identification code given to the transport container (5) to which the transport container (10) is attached and the vehicle registration information given to the trailer (2) to which the transport container (5) is attached.

The refrigerator identification information storage section (84) stores the container identification symbol and the vehicle registration information obtained by the refrigerator information obtaining process of the arithmetic processing unit (70).

- Operation of the driver terminal -
The operation of the driver terminal (35) will be described with reference to the flowchart of FIG.

<Step ST21>
When the user of the driver terminal (35) inputs an instruction to execute the application program (36), the driver terminal (35) starts executing the application program (36) in step ST21.

When the driver terminal (35) starts executing the application program (36), first, the permission period determination section (73) performs period limitation processing. When the permission period determining section (73) determines that the current time is earlier than the "end time of the permission period", the driver terminal (35) proceeds to step ST22. On the other hand, when the permission period determination section (73) determines that the current time is later than the "end time of the permission period", the driver terminal (35) terminates execution of the application program (36).

<Step ST22>
In the next step ST22, the driver terminal (35) determines whether permission information (95) has been obtained from the administrator terminal (32). If the permission information (95) has already been acquired, the driver terminal (35) proceeds to step ST23. On the other hand, if the permission information (95) has not yet been acquired, the driver terminal (35) proceeds to step ST24.

<Step ST23>
At step ST23, the arithmetic processing unit (70) of the driver terminal (35) reads the permission information (95) stored in the permission information storage section (81) of the memory unit (80). That is, the arithmetic processing unit (70) acquires the SSID and the encryption key, which are communication information related to the wireless LAN adapter (31) with which the driver terminal (35) can communicate, from the permission information storage section (81). . Thereafter, the driver terminal (35) proceeds to step ST26.

<Step ST24>
In step ST24, the driver terminal (35) activates the camera unit (38) and displays the permission information acquisition screen (140) shown in FIG. 17 on the display (37). The permission information acquisition screen (140) is a screen in which a rectangular reading frame (141) is superimposed on the image captured by the camera unit (38) of the driver terminal (35). The user of the driver terminal (35) takes a picture of the display (34) of the administrator terminal (32) with the camera unit (38) of the driver terminal (35), and the display (32) of the administrator terminal (32) 34) enters the reading frame (141), the permission acquisition unit (71) reads the QR code.

<Step ST25>
In the next step ST25, the permission acquisition section (71) acquires permission information (95) by decoding the QR code read in step ST24. As described above, this permission information (95) includes the SSID and encryption key, which are communication information relating to the wireless LAN adapter (31) with which the driver terminal (35) can communicate. The permission obtaining section (71) records the obtained permission information (95) in the permission information storage section (81) of the memory unit (80). Thereafter, the driver terminal (35) proceeds to step ST26.

<Step ST26>
In step ST26, the communication unit (85) of the driver terminal (35) starts wireless communication with the wireless LAN adapter (31) specified by the permission information (95) acquired by the driver terminal (35). . That is, in the driver terminal (35), the arithmetic processing unit (70) uses the SSID and the encryption key read from the permission information storage section (81) to transmit the wireless LAN adapter (31) to the communication unit (85). to start wireless communication.

In the driver terminal (35) that has started wireless communication with the wireless LAN adapter (31), the arithmetic processing unit (70) performs refrigerator information acquisition processing. In other words, the arithmetic processing unit (70) receives from the corresponding wireless LAN adapter (31) the container attached to the shipping container (5) to which the refrigerator (10) corresponding to the wireless LAN adapter (31) is attached. An identification symbol and vehicle registration information given to the trailer (2) to which the shipping container (5) is attached are obtained.

<Step ST27>
In the next step ST27, the driving information obtaining section (75) of the driver terminal (35) performs driving information obtaining processing.

In the operation information acquisition process, the operation information acquisition section (75) acquires the operation information of the refrigerator (10) corresponding to the wireless LAN adapter (31) from the wireless LAN adapter (31) that started wireless communication in step ST26. get. Specifically, the operation information acquiring section (75) acquires the set temperature stored by the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31) that started wireless communication in step ST26, Measured temperature inside the shipping container (5) to which the machine (10) is attached is acquired as operation information.

The driving information acquisition section (75) records the acquired driving information in the driving information storage section (83) of the memory unit (80).

<Step ST28>
In step ST28, the arithmetic processing unit (70) of the driver terminal (35) performs refrigerator identification information display processing and operation information display processing. Then, the driver terminal (35) displays the monitor screen (150) shown in FIG. 18 on the display (37).

As shown in FIG. 18, the monitor screen (150) is provided with a trailer display area (151), a driving information display area (152), and an alarm display area (153). A set temperature change button (154) is also displayed on the monitor screen (150). Unlike the monitor screen (120) of the administrator terminal (32), neither the freezer stop button (125) nor the freezer start button (126) are displayed on the monitor screen (150) of the driver terminal (35). Do not show.

The refrigerator identification information of the refrigerator (10) corresponding to the wireless LAN adapter (31) with which the driver terminal (35) can communicate is displayed in the trailer display area (151). That is, in the trailer display area (151), the container identification symbol of the shipping container (5) provided with the refrigerator (10) corresponding to the driver terminal (35) and the shipping container (5) are attached. The vehicle registration information of the trailer (2) obtained is displayed. This refrigerator identification information is displayed in the trailer display area (151) by performing refrigerator identification information display processing by the arithmetic processing unit (70) of the driver terminal (35).

The operation information display area (152) displays the operation information of the refrigerator (10) corresponding to the wireless LAN adapter (31) with which the driver terminal (35) can communicate. That is, in the driving information display area (152), the setting temperature stored by the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31) with which the driver terminal (35) can communicate, and the Measured temperature inside the shipping container (5) to which the refrigerator (10) is attached is displayed. This driving information is displayed in the driving information display area (152) by the driving information display processing performed by the arithmetic processing unit (70) of the driver terminal (35).

The alarm display area (153) displays information (warning information) necessary to notify the user of the administrator terminal (32) of the operating state of the refrigerator (10). This warning information includes, for example, an indication that the refrigerator (10) is stopped, and a warning that the temperature inside the shipping container (5) is out of the set range (for example, set temperature ±0.5°C). display to the effect that the

When the user of the driver terminal (35) taps the set temperature change button (154), the driver terminal (35) enters a state of accepting input of a change value for the set temperature. When the user of the driver terminal (35) inputs the changed value of the set temperature, the operation command unit (74) of the driver terminal (35) converts the input changed value of the set temperature into the "chiller ( 10) to the wireless LAN adapter (31).

The operation command transmitter (42) of the wireless LAN adapter (31) transmits the operation command received from the driver terminal (35) to the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31). Send to

The controller (11) of the refrigerator (10) receives the operation command from the wireless LAN adapter (31), stores the "changed value of the set temperature" received as the operation command in the memory unit (16) as the updated set temperature. Record in the set temperature storage section (17). Then, the controller (11) stores the measured value of the internal temperature of the shipping container (5) to which the refrigerator (10) is attached in the set temperature storage unit (17) as "updated set temperature ”, the operation of the refrigerator (10) is controlled.

- Feature (1) of the embodiment -
A management system (30) of the present embodiment is a management system (30) for managing refrigerators (10) attached one by one to a plurality of shipping containers (5). It comprises a wireless LAN adapter (31) provided one by one, and an administrator terminal (32) and a driver terminal (35), each of which wirelessly communicates with the wireless LAN adapter (31). Each of the administrator terminal (32) and the driver terminal (35) sends an operation command to the wireless LAN adapter (31) to operate the refrigerator (10) corresponding to the wireless LAN adapter (31). is configured to allow the transmission of The wireless LAN adapter (31) is configured to transmit the received operation command to the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31). The administrator terminal (32) is configured to be able to transmit operation commands to a plurality of wireless LAN adapters (31) only within a preset permitted area (90). The driver terminal (35) can transmit an operation command to only one wireless LAN adapter (31) corresponding to the driver terminal (35) both inside and outside the permitted area (90). Configured.

The management method performed by the management system (30) of the present embodiment is that the refrigerators (10) attached to a plurality of shipping containers (5) are provided one by one for each refrigerator (10). This management method uses a wireless LAN adapter (31), and an administrator terminal (32) and a driver terminal (35) that wirelessly communicate with the wireless LAN adapter (31). In this management method, each of the administrator terminal (32) and the driver terminal (35) operates the refrigerator (10) corresponding to the wireless LAN adapter (31) for the wireless LAN adapter (31). to send an operation command to Further, in this management method, the wireless LAN adapter (31) is caused to transmit the received operation command to the controller (11) of the refrigerator (10) corresponding to the wireless LAN adapter (31). In this management method, the administrator terminal (32) is permitted to transmit the operation command to the plurality of wireless LAN adapters (31) only within the preset permitted area (90). Also, in this management method, the driver terminal (35) can operate only one wireless LAN adapter (31) corresponding to the driver terminal (35) both inside and outside the permitted area (90). Transmission of commands is permitted.

In the management system (30) and the management method of the present embodiment, the administrator terminal (32) and the driver terminal (35) are configured so that the target to which the operation command can be transmitted and the conditions for transmitting the operation command are different from each other. different.

In the management system (30) and management method of this embodiment, the administrator terminal (32) can transmit operation instructions to a plurality of wireless LAN adapters (31). Constrained inside (90). In other words, for the administrator terminal (32) capable of operating a plurality of refrigerators (10), the area in which the operation command can be transmitted is restricted. Therefore, even if a third party other than the party engaged in the management of the refrigerator (10) obtains the administrator terminal (32), the administrator terminal (32) obtained by the third party can be used to The possibility of manipulating the refrigerator (10) can be reduced and the security of the management system (30) can be increased.

In addition, in the management system (30) and the management method of this embodiment, the driver terminal (35) can transmit an operation command only to one corresponding wireless LAN adapter (31), but can transmit an operation command. Area is not restricted. In other words, for the driver terminal (35) in which the area to which the operation command can be transmitted is not limited, the number of operable refrigerators (10) is limited to one. Therefore, even if a third party other than the party engaged in the management of the refrigerator (10) obtains the driver terminal (35), the driver terminal (35) obtained by the third party can be used for operation. The refrigerator (10) can be limited to only one refrigerator (10) corresponding to the driver terminal (35) obtained by a third party. Therefore, it is possible to limit the number of refrigerators (10) operated by a third party, thereby enhancing the security of the management system (30).

- Feature (2) of the embodiment -
In the management system (30) of the present embodiment, the administrator terminal (32) executes a permission operation for giving permission information (95) permitting transmission of operation instructions to the driver terminal (35). Configured. Also, the driver terminal (35) is configured to be able to transmit an operation command to the wireless LAN adapter (31) only after obtaining permission information (95) from the administrator terminal (32).

The management method performed by the management system (30) of the present embodiment is a permission operation for giving permission information (95) for permitting transmission of an operation command to the manager terminal (32) to the driver terminal (35). to run. Also, this management method permits transmission of operation instructions to the wireless LAN adapter (31) only to the driver terminal (35) that has acquired the permission information (95) from the administrator terminal (32).

In the management system (30) and management method of the present embodiment, the driver terminal (35) issues an operation command to the wireless LAN adapter ( 31) cannot be sent. Therefore, according to the management system (30) of the present embodiment, the conditions for the driver terminal (35) to transmit the operation command to the wireless LAN adapter (31) are stricter, and the security of the management system (30) is further improved. increase.

- Feature (3) of the embodiment -
In the management system (30) of this embodiment, the administrator terminal (32) is configured to execute the operation of displaying the permission information (95) as the permission operation. Also, the driver terminal (35) is configured to read and acquire the permission information (95) displayed on the administrator terminal (32).

In the management method performed by the management system (30) of the present embodiment, the administrator terminal (32) is caused to execute the operation of displaying the permission information (95) as the permission operation, and the driver terminal (35) is instructed to display the management The permission information (95) displayed on the personal terminal (32) is read and obtained.

In the management system (30) and management method of this embodiment, the driver terminal (35) reads the permission information (95) displayed on the administrator terminal (32), Get permission information (95) from In order for the driver terminal (35) to read the permission information (95) displayed on the administrator terminal (32), the user of the driver terminal (35) must be the user of the administrator terminal (32). I need to meet you. Therefore, according to this embodiment, the user of the manager terminal (32) can see and confirm the user of the driver terminal (35), further enhancing the security of the management system (30).

- Feature (4) of the embodiment -
In the management system (30) of this embodiment, the administrator terminal (32) is configured to convert the permission information (95) into a matrix type two-dimensional code and display it. Moreover, the management method performed by the management system (30) of this embodiment causes the administrator terminal (32) to convert the permission information (95) into a matrix-type two-dimensional code and display it. The administrator terminal (32) of this embodiment displays the permission information (95) converted into the matrix type two-dimensional code.

- Feature (5) of the embodiment -
In the management system (30) of the present embodiment, the administrator terminal (32) is "one wireless LAN adapter (31) to which the driver terminal (35) that has acquired the permission information (95) can transmit an operation command". Communication information for identifying the permission information (95) is configured to be included.

The management method performed by the management system (30) of this embodiment is to send the administrator terminal (32) "one wireless LAN to which the driver terminal (35) that has acquired the permission information (95) can transmit an operation command. Communication information for identifying the adapter (31)'' is included in the authorization information (95).

In the management system (30) and management method of this embodiment, the administrator terminal (32) inserts communication information into the permission information (95) given to the driver terminal (35). Therefore, the driver terminal (35) can perform wireless communication with one corresponding wireless LAN adapter (31) using the communication information included in the acquired permission information (95).

Thus, in the management system (30) and management method of the present embodiment, the administrator terminal (32) provides communication information necessary for the driver terminal (35) to communicate with the wireless LAN adapter (31). (Specifically, the SSID and encryption key) are included in the authorization information (95). Therefore, by having the driver terminal (35) read the permission information (95), it becomes possible to cause the driver terminal (35) to acquire the information for communication, which is convenient for the user of the driver terminal (35). improve sexuality.

- Feature (6) of the embodiment -
In the management system (30) of the present embodiment, the administrator terminal (32) and the driver terminal (35) have a unique container identification code for the shipping container (5) to which the refrigerator (10) is attached, It is configured to acquire and display vehicle registration information written on a license plate (3) of a transportation vehicle (2) carrying a transportation container (5) to which a refrigerator (10) is attached.

In the management method performed by the management system (30) of the present embodiment, the administrator terminal (32) and the driver terminal (35) use A container identification symbol and vehicle registration information written on a license plate (3) of a transportation vehicle (2) carrying a transportation container (5) with a refrigerator (10) are acquired and displayed.

In the management system (30) and the management method of this embodiment, the administrator terminal (32) and the driver terminal (35) each have the container identification symbol of the transportation container (5) and the vehicle of the trailer (2). Retrieve and display registration information and/or Therefore, the user of the administrator terminal (32) must confirm that the administrator terminal (32) is The refrigerator (10) compatible with the wireless LAN adapter (31) for wireless communication can be easily confirmed. Further, the user of the driver terminal (35) performs wireless communication with the driver terminal (35) based on one or both of the container identification symbol displayed on the driver terminal (35) and the vehicle registration information. The refrigerator (10) compatible with the wireless LAN adapter (31) can be easily confirmed.

- Feature (7) of the embodiment -
In the management system (30) of this embodiment, the driver terminal (35) is configured to be able to transmit an operation command to the wireless LAN adapter (31) only during a preset permission period.

In the management method performed by the management system (30) of this embodiment, the driver terminal (35) is allowed to transmit operation instructions to the wireless LAN adapter (31) only during a preset permission period.

In the management system (30) and management method of the present embodiment, the driver terminal (35) cannot transmit an operation command to the wireless LAN adapter (31) unless it is during the permitted period. Therefore, even if the driver terminal (35) falls into the hands of a third party, the third party may operate the refrigerator (10) using the driver terminal (35) after the permitted period has passed. I can't. Therefore, according to the present embodiment, the conditions for allowing the driver terminal (35) to transmit the operation command to the wireless LAN adapter (31) become stricter, further enhancing the security of the management system (30).

- Feature (8) of the embodiment -
In the management system (30) of this embodiment, the wireless LAN adapter (31) refuses communication with the driver terminal (35) while communicating with the administrator terminal (32), It is configured to communicate with the driver terminal (35) when not communicating with (32).

In the management method performed by the management system (30) of this embodiment, when the wireless LAN adapter (31) is communicating with the administrator terminal (32), the driver terminal (35) is connected to the wireless LAN adapter (31). ) and allows the wireless LAN adapter (31) to communicate with the driver terminal (35) when the wireless LAN adapter (31) is not communicating with the administrator terminal (32).

In the management system (30) and management method of the present embodiment, the wireless LAN adapter (31) preferentially connects to the administrator terminal (32), out of the administrator terminal (32) and the driver terminal (35). connect.

-Feature of Embodiment (9)-
In the management system (30) of the present embodiment, the wireless LAN adapter (31) acquires operation information regarding "the operation state of the refrigerator (10) corresponding to the wireless LAN adapter (31)", and the acquired operation information to the administrator terminal (32) and the driver terminal (35). Also, each of the administrator terminal (32) and the driver terminal (35) is configured to display the received driving information.

In the management method performed by the management system (30) of the present embodiment, the wireless LAN adapter (31) is caused to acquire operating information regarding the operating state of the refrigerator (10) corresponding to the wireless LAN adapter (31), The acquired driving information is transmitted to the administrator terminal (32) and the driver terminal (35). Also, in this management method, the received driving information is displayed on each of the manager terminal (32) and the driver terminal (35).

In the management system (30) and management method of this embodiment, the wireless LAN adapter (31) transmits the operation information acquired from the refrigerator (10) to the administrator terminal (32) and the driver terminal (35). do. Each of the manager terminal (32) and the driver terminal (35) displays the received driving information. Therefore, the user of the administrator terminal (32) and the driver terminal (35) can know the operation information regarding the operation state of the refrigerator (10) even at a place away from the refrigerator (10). .

- Feature (10) of the embodiment -
The application program (33) of the present embodiment constitutes a management system (30) for managing the refrigerators (10) attached one by one to a plurality of shipping containers (5), and each refrigerator (10) It is a program installed in the administrator terminal (32) that wirelessly communicates with the wireless LAN adapters (31) provided one by one. This application program (33) includes transmission processing for transmitting an operation command for operating the refrigerator (10) to the wireless LAN adapter (31) corresponding to the refrigerator (10), and the application program (33). Position determination processing for determining whether or not the location of the administrator terminal (32) on which is installed is inside a preset permitted area (90), and execution of transmission processing are managed in the location determination processing. The manager terminal (32) is made to execute area restriction processing for restricting only when it is determined that the position of the manager terminal (32) is inside the permitted area (90).

The administrator terminal (32) in which the application program (33) of this embodiment is installed executes area restriction processing. Therefore, although the administrator terminal (32) can transmit operation commands to a plurality of wireless LAN adapters (31), the area where the operation commands can be transmitted is limited inside the permitted area (90). In other words, the area in which the operation command can be transmitted is restricted for the administrator terminal (32) capable of operating the plurality of refrigerators (10). Therefore, according to the present embodiment, it is possible to reduce the possibility of a third party using the administrator terminal (32) to operate the refrigerator (10), thereby enhancing the security of the management system (30). .

- Feature (11) of the embodiment -
The application program (33) installed in the administrator terminal (32) of this embodiment is a driver that configures the management system (30) together with the administrator terminal (32) and wirelessly communicates with the wireless LAN adapter (31). Permission processing for giving the terminal (35) permission information (95) permitting "transmission of an operation command to one wireless LAN adapter (31) corresponding to the driver terminal (35)" is performed by an administrator. Let the terminal (32) execute.

The administrator terminal (32) in which the application program (33) of this embodiment is installed executes permission processing. In the permission information (95) given to the driver terminal (35), the administrator terminal (32) "sends an operation command to one wireless LAN adapter (31) corresponding to the driver terminal (35)". allow Therefore, the driver terminal (35) is limited to operating only one refrigerator (10). Therefore, according to this embodiment, the number of refrigerators (10) operated by a third party can be limited, and the security of the management system (30) can be enhanced.

In addition, the driver terminal (35), which composes the management system (30) together with the administrator terminal (32) in which the application program (33) of the present embodiment is installed, receives permission information ( 95), the operation command cannot be sent to the wireless LAN adapter (31). Therefore, according to this embodiment, the conditions for allowing the driver terminal (35) to transmit the operation command to the wireless LAN adapter (31) can be tightened, and the security of the management system (30) can be further enhanced.

-Feature of Embodiment (12)-
The application program (33) installed in the administrator terminal (32) of this embodiment causes the administrator terminal (32) to execute the process of displaying the permission information (95) as permission processing. The administrator terminal (32) in which this application program (33) is installed displays permission information (95) in the permission process.

-Feature of Embodiment (13)-
The application program (33) installed in the administrator terminal (32) of this embodiment converts the permission information (95) into a matrix-type two-dimensional code and displays it in the permission process on the administrator terminal ( 32) to execute. The administrator terminal (32) in which this application program (33) is installed displays the permission information (95) converted into matrix type two-dimensional code.

-Feature of Embodiment (14)-
The application program (33) installed in the administrator terminal (32) of the present embodiment is "a single wireless LAN adapter (31 )” is included in the permission information (95) by the administrator terminal (32) in the permission process.

The administrator terminal (32) in which this application program (33) is installed inserts communication information into the permission information (95) given to the driver terminal (35). For this reason, the administrator terminal (32) is required to allow the driver terminal (35) to communicate with the wireless LAN adapter (31) together with permission to transmit operation commands to the wireless LAN adapter (31). communication information (specifically, SSID and encryption key) can be given to the driver terminal (35).

-Feature of Embodiment (15)-
The application program (33) installed in the administrator terminal (32) of this embodiment includes a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached, and the refrigerator (10) The process of acquiring and displaying the vehicle registration information written on the license plate (3) of the transportation vehicle (2) loaded with the transportation container (5) to which the let it run.

The administrator terminal (32) in which this application program (33) is installed acquires and displays the container identification symbol and the vehicle registration information. For this reason, the user of the administrator terminal (32) performs wireless communication with the administrator terminal (32) based on the container identification symbol and vehicle registration information displayed on the administrator terminal (32). The refrigerator (10) corresponding to the wireless communication unit (31) can be easily confirmed.

-Feature of Embodiment (16)-
The application program (33) installed in the administrator terminal (32) of the present embodiment, from each of the plurality of wireless LAN adapters (31), "refrigerating machine (10) corresponding to the wireless LAN adapter (31) The administrator terminal (32) is caused to execute an operation information acquisition process of acquiring operation information regarding the "operating state" and an operation information display process of displaying the acquired operation information.

The administrator terminal (32) in which this application program (33) is installed displays the operation information obtained from each of the plurality of wireless LAN adapters (31). Therefore, the user of the administrator terminal (32) can easily know the operating information regarding the operating states of the plurality of refrigerators (10).

-Features of Embodiment (17)-
The application program (36) of the present embodiment constitutes a management system (30) for managing the refrigerators (10) attached one by one to a plurality of shipping containers (5), and each refrigerator (10) It is a program installed in the driver terminal (35) that wirelessly communicates with the wireless LAN adapter (31) provided one by one. This application program (36) causes the driver terminal (35) to execute permission acquisition processing and transmission processing. The permission acquisition process is a process of acquiring permission information (95) from the manager terminal (32) that constitutes the management system (30) together with the driver terminal (35). The permission information (95) is "an operation command for operating the refrigerator (10) corresponding to that wireless LAN adapter (31)" for only one wireless LAN adapter (31) corresponding to the driver terminal (35). is information that permits the transmission of The operation command is a process of transmitting an operation command to one of the wireless LAN adapters (31) permitted to transmit the operation command by the permission information (95) after obtaining the permission information (95).

The driver terminal (35) in which this application program (36) is installed executes permission acquisition processing. The driver terminal (35) acquires the permission information (95) from the administrator terminal (32) by performing permission acquisition processing. The driver terminal (35) that has acquired the permission information (95) can transmit an operation command only to one wireless LAN adapter (31) corresponding to the driver terminal (35).

The driver terminal (35) installed with this application program (36) is limited to operating only one chiller (10). Therefore, according to this embodiment, the number of refrigerators (10) operated by a third party can be limited, and the security of the management system (30) can be enhanced.

In addition, the driver terminal (35) in which this application program (36) is installed sends an operation command to the wireless LAN adapter (31) unless permission information (95) is obtained from the administrator terminal (32). cannot be sent to Therefore, according to this embodiment, the conditions for allowing the driver terminal (35) to transmit the operation command to the wireless LAN adapter (31) can be tightened, and the security of the management system (30) can be further enhanced.

-Feature of Embodiment (18)-
The application program (36) installed in the driver terminal (35) of this embodiment reads and acquires the permission information (95) displayed on the administrator terminal (32) as permission acquisition processing. Let the terminal (35) execute.

The driver terminal (35) in which this application program (36) is installed reads the permission information (95) displayed on the administrator terminal (32), and reads the permission information (95) from the administrator terminal (32). 95). Therefore, according to this embodiment, the user of the manager terminal (32) can see and confirm the user of the driver terminal (35), further enhancing the security of the management system (30).

-Features of Embodiment (19)-
The application program (36) installed in the driver terminal (35) of the present embodiment is a communication program for specifying "one wireless LAN adapter (31) to which the driver terminal (35) can transmit operation commands". In the permission acquisition process, the driver terminal (35) is caused to execute a process of acquiring permission information (95) including information from the administrator terminal (32).

The driver terminal (35) in which the application program (36) is installed acquires permission information (95) including communication information from the administrator terminal (32) in the permission acquisition process. Then, the sub terminal unit (35) can perform wireless communication with one corresponding wireless communication unit (31) using the communication information included in the obtained permission information (95). Therefore, according to the present embodiment, the driver terminal (35) can acquire communication information by reading the permission information (95), thereby improving convenience for the user of the driver terminal (35). do.

-Feature of Embodiment (20)-
The application program (36) installed in the driver terminal (35) of this embodiment includes a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached and The sub terminal unit (35) is made to execute the process of acquiring and displaying the vehicle registration information written on the license plate (3) of the trailer (2) carrying the attached shipping container (5).

A driver terminal (35) in which this application program (36) is installed acquires and displays a container identification symbol and vehicle registration information. Therefore, the user of the driver terminal (35) can use the wireless LAN adapter with which the driver terminal (35) communicates wirelessly based on the container identification symbol displayed on the driver terminal (35) and the vehicle registration information. The refrigerator (10) corresponding to (31) can be easily confirmed.

-Feature of Embodiment (21)-
The application program (36) installed in the driver terminal (35) of this embodiment causes the driver terminal (35) to execute a time limit process that permits execution of the transmission process only during a preset permission period. .

The driver terminal (35) in which this application program (36) is installed cannot transmit an operation command to the wireless LAN adapter (31) unless it is within the permitted period. Therefore, according to the present embodiment, the conditions for allowing the driver terminal (35) to transmit the operation command to the wireless LAN adapter (31) become stricter, further enhancing the security of the management system (30).

-Feature of Embodiment (22)-
The application program (36) installed in the driver terminal (35) of the present embodiment receives the "refrigerating machine corresponding to the wireless LAN adapter (31) from the wireless LAN adapter (31) corresponding to the driver terminal (35). The driver terminal (35) is made to execute a driving information acquisition process of acquiring driving information relating to "the operating state of the machine (10)" and a driving information display process of displaying the acquired driving information.

A driver terminal (35) in which this application program (36) is installed displays the driving information acquired from the wireless LAN adapter (31) corresponding to the driver terminal (35). For this reason, the user of the driver terminal (35) can obtain the operating information about the operating state of the refrigerator (10) that can be operated using the driver terminal (35) even at a place away from the refrigerator (10). , it becomes possible to know

-Modified example of embodiment-
<First modification>
In the management system (30) of this embodiment, the user identification information used by the user identification section (54) of the administrator terminal (32) is not limited to passwords. That is, the application program (33) installed in the administrator terminal (32) may be configured to use information other than the password as user identification information.

The user identification section (54) of this modification may be configured to use, for example, the shape of the user's fingerprint or the pattern of the iris as user identification information. In this case, the user identification information storage section (64) stores the fingerprint shape or iris pattern of a specific person registered in advance as "registered user identification information". Then, the user identification unit (54) obtains the fingerprint shape or iris pattern (pattern) of the user, and the obtained fingerprint shape or iris pattern (pattern) is regarded as "registered user identification information". Determine if they match.

<Second modification>
In the management system (30) of the present embodiment, the permitted area setting section (52) of the administrator terminal (32) may be configured to allow the permitted area (90) to be changed. That is, the application program (33) installed in the administrator terminal (32) may be configured to cause the administrator terminal (32) to execute the process of changing the permitted area (90).

The administrator terminal (32) of this modified example causes the user identification section (54) to execute user identification information request processing before the permitted area setting section (52) accepts the change of the permitted area (90). . In this case, the permitted area setting section (52) executes the processing for changing the permitted area (90) only when the input user identification information matches the registered user identification information.

<Third Modification>
The permission granting unit (56) of the administrator terminal (32) of the present embodiment uses only one of the "vehicle registration information of the trailer (2)" and the "container identification symbol of the shipping container (5)" to It may be configured to be included in the permission information (95) as refrigerator identification information.

<Fourth Modification>
The administrator terminal (32) of this embodiment includes each trailer display area (111) of the trailer selection screen (110), a monitor screen (120), a driving history acquisition screen (130), and a driver authentication screen (135). In at least one of the trailer display area (121), only one of "vehicle registration information of trailer (2)" and "container identification symbol of shipping container (5)" is displayed. may

<Fifth Modification>
The location information acquisition unit (51) of the administrator terminal (32) of the present embodiment is configured to identify the location of the administrator terminal (32) based on information other than information transmitted by GPS satellites. may be The location information acquisition unit (51) of this modification uses, for example, location information transmitted by a base station of a wireless communication network (for example, a mobile phone network or a public wireless LAN) to determine the location of the administrator terminal (32). may be configured to identify the

<Sixth Modification>
The shape of the permitted area (90) set by the permitted area setting section (52) of the administrator terminal (32) of this embodiment is not limited to a circle. The shape of the permitted area (90) may be, for example, rectangular or elliptical. In addition, the permission area setting unit (52) is the area itself (in the above embodiment, the site of the distribution center (91)) where the user of the administrator terminal (32) needs to operate the refrigerator (10). may be configured to be set in the permitted area (90).

<Seventh Modification>
The permitted area setting unit (52) of the administrator terminal (32) of the present embodiment may omit the process of acquiring the reference radius. In this case, the allowed area setting section (52) is configured to set an allowed area (90) having a predetermined size based on the acquired reference position.

<Eighth modification>
In the management system (30) of this embodiment, the administrator terminal (32) and the driver terminal (35) may be "computers" installed with application programs, and are not limited to smart phones or tablet terminals. Note that this "computer" refers to "a machine that stores a program describing a calculation procedure (algorithm) and executes calculation according to the stored program". Therefore, the administrator terminal (32) and the driver terminal (35) may be personal computers in which application programs are installed, for example.

Although embodiments and variations have been described above, it will be appreciated that various changes in form and detail may be made without departing from the spirit and scope of the claims. In addition, the embodiments and modifications described above may be appropriately combined or replaced as long as the functions of the object of the present disclosure are not impaired.

As described above, the present disclosure is useful for a refrigerator management system, a refrigerator management method, a program for a main terminal unit, and a program for a sub terminal unit.

2 trailer (transportation vehicle)
3 license plate
5 shipping container
10 refrigerator
11 controller
30 management system
31 Wireless LAN adapter (wireless communication unit)
32 Administrator terminal (main terminal unit)
35 Driver terminal (sub terminal unit)
90 Permitted Area
95 Authorization information

Claims (30)

A management system for managing refrigerators (10) attached one by one to a plurality of shipping containers (5),
a wireless communication unit (31) provided for each refrigerator (10);
comprising a main terminal unit (32) and a sub terminal unit (35) each wirelessly communicating with the wireless communication unit (31),
Each of the main terminal unit (32) and the sub-terminal unit (35) is for operating the refrigerator (10) corresponding to the wireless communication unit (31) with respect to the wireless communication unit (31). is configured to be able to send operation instructions for
The wireless communication unit (31) is configured to transmit the received operation command to a controller (11) of the refrigerator (10) corresponding to the wireless communication unit (31),
The main terminal unit (32) is configured to be able to transmit the operation command to the plurality of wireless communication units (31) only within a preset permitted area (90),
The sub terminal unit (35) issues the operation command to only one radio communication unit (31) corresponding to the sub terminal unit (35) both inside and outside the permitted area (90). A management system characterized by being configured to transmit. In claim 1,
The main terminal unit (32) is configured to perform a permission operation for giving permission information (95) permitting transmission of the operation command to the sub terminal unit (35),
The sub terminal unit (35) is configured to transmit the operation command to the wireless communication unit (31) only after obtaining the permission information (95) from the main terminal unit (32). A management system characterized by: In claim 2,
The main terminal unit (32) is configured to perform an operation of displaying the permission information (95) as the permission operation,
Management system, characterized in that said secondary terminal unit (35) is adapted to read and obtain said authorization information (95) displayed on said main terminal unit (32). In claim 3,
A management system, wherein the main terminal unit (32) is configured to convert the permission information (95) into a matrix-type two-dimensional code and display it. In any one of claims 2 to 4,
The main terminal unit (32) provides communication information for specifying one of the wireless communication units (31) to which the sub terminal unit (35) that has acquired the permission information (95) can transmit the operation command. , a management system configured to include in said authorization information (95). In any one of claims 1 to 5,
The main terminal unit (32) and the sub-terminal unit (35) each include a container identification symbol unique to the shipping container (5) to which the refrigerator (10) is attached and a container identification symbol to which the refrigerator (10) is attached. It is configured to acquire and display one or both of the vehicle registration information described on the license plate (3) of the transportation vehicle (2) loaded with the transportation container (5). management system. In any one of claims 1 to 6,
A management system, wherein the sub terminal unit (35) is configured to transmit the operation command to the wireless communication unit (31) only during a preset permission period. In any one of claims 1 to 7,
The wireless communication unit (31) rejects communication with the sub terminal unit (35) while communicating with the main terminal unit (32), and when not communicating with the main terminal unit (32). A management system, characterized in that it is arranged to communicate with said sub-terminal unit (35) in a second mode. In any one of claims 1 to 8,
The wireless communication unit (31) acquires operating information about the operating state of the refrigerator (10) corresponding to the wireless communication unit (31), and transmits the acquired operating information to the main terminal unit (32) and the secondary terminal unit (32). configured to transmit to the terminal unit (35),
A management system, wherein each of said main terminal unit (32) and said sub-terminal unit (35) is adapted to display said received operating information. A wireless communication unit (31) provided with one refrigerator (10) attached to each of a plurality of shipping containers (5), and the wireless communication unit (31). A management method for managing using a main terminal unit (32) and a sub terminal unit (35) wirelessly communicating with
For operating the refrigerator (10) corresponding to the wireless communication unit (31) with respect to the wireless communication unit (31) in each of the main terminal unit (32) and the sub-terminal unit (35) to send the operation command of
causing the wireless communication unit (31) to transmit the received operation command to the controller (11) of the refrigerator (10) corresponding to the wireless communication unit (31);
allowing the main terminal unit (32) to transmit the operation command to the plurality of wireless communication units (31) only within a preset permitted area (90);
The sub terminal unit (35) transmits the operation command to only one radio communication unit (31) corresponding to the sub terminal unit (35) both inside and outside the permitted area (90). A management method characterized by recognizing In claim 10,
causing the main terminal unit (32) to perform a permission operation for giving permission information (95) permitting transmission of the operation command to the sub terminal unit (35);
A management method characterized by permitting transmission of the operation command to the wireless communication unit (31) only to the sub terminal unit (35) that has obtained the permission information (95) from the main terminal unit (32). In claim 11,
causing the main terminal unit (32) to perform an operation of displaying the permission information (95) as the permission operation;
A management method characterized by causing the sub terminal unit (35) to read and acquire the permission information (95) displayed on the main terminal unit (32). In claim 12,
A management method characterized in that the permission information (95) is converted into a matrix-type two-dimensional code and displayed on the main terminal unit (32). In any one of claims 11 to 13,
Communication information for specifying one wireless communication unit (31) to which the sub terminal unit (35) that has acquired the permission information (95) can transmit the operation command to the main terminal unit (32). , is included in the permission information (95). In any one of claims 10 to 14,
A container identification symbol unique to the transportation container (5) to which the refrigerator (10) is attached, and a transportation vehicle (2) in which the transportation container (5) to which the refrigerator (10) is attached is mounted. ) and the vehicle registration information described on the license plate (3) of (3) above and/or both of them are acquired by the main terminal unit (32) and the sub-terminal unit (35) and displayed. In any one of claims 10 to 15,
A management method characterized by permitting the sub terminal unit (35) to transmit the operation command to the wireless communication unit (31) only during a preset permission period. In any one of claims 10 to 16,
causing the wireless communication unit (31) to refuse communication with the sub terminal unit (35) when the wireless communication unit (31) is communicating with the main terminal unit (32);
A management method characterized by allowing the wireless communication unit (31) to communicate with the sub terminal unit (35) when the wireless communication unit (31) is not communicating with the main terminal unit (32). . In any one of claims 10 to 17,
The wireless communication unit (31) is caused to acquire operating information relating to the operating state of the refrigerator (10) corresponding to the wireless communication unit (31), and the acquired operating information is transmitted to the main terminal unit (32) and the cause the sub-terminal unit (35) to transmit,
A management method, characterized in that the received operating information is displayed on each of the main terminal unit (32) and the sub-terminal unit (35). A management system (30) for managing refrigerators (10) attached to a plurality of shipping containers (5) one by one is configured, and a wireless communication unit (31) is provided for each refrigerator (10). ) in wireless communication with a main terminal unit (32), comprising:
a transmission process of transmitting an operation command for operating the refrigerator (10) to the wireless communication unit (31) corresponding to the refrigerator (10);
A position determination process for determining whether or not the position of the main terminal unit (32) in which the program is installed is inside a preset permitted area (90);
an area restriction process for restricting execution of the transmission process only when it is determined in the position determination process that the position of the main terminal unit (32) is inside the allowed area (90);
A sub-terminal unit (35) that constitutes the management system (30) together with the main terminal unit (32) and wirelessly communicates with the radio communication unit (31) is provided with one sub-terminal unit (35) corresponding to the sub-terminal unit (35). A program for causing the main terminal unit (32) to execute permission processing for providing permission information (95) for permitting transmission of the operation command to the wireless communication unit (31). In claim 19 ,
A program for causing the main terminal unit (32) to execute a process of displaying the permission information (95) as the permission process. In claim 20 ,
A program for causing the main terminal unit (32) to execute a process of converting the permission information (95) into a matrix type two-dimensional code and displaying it in the permission process. In any one of claims 19-21 ,
A process of including, in the permission information (95), communication information for specifying one of the wireless communication units (31) to which the sub terminal unit (35) that has acquired the permission information (95) can transmit the operation command. is executed by the main terminal unit (32) in the permission process. In any one of claims 19-22 ,
A container identification symbol unique to the transportation container (5) to which the refrigerator (10) is attached, and a transportation vehicle (2) in which the transportation container (5) to which the refrigerator (10) is attached is mounted. ) program for causing the main terminal unit (32) to acquire and display one or both of the vehicle registration information written on the license plate (3). In any one of claims 19-23 ,
an operation information acquisition process for acquiring operation information about an operation state of the refrigerator (10) corresponding to the wireless communication unit (31) from each of the plurality of wireless communication units (31);
A program for causing the main terminal unit (32) to execute a driving information display process for displaying the acquired driving information. A management system (30) for managing refrigerators (10) attached to a plurality of shipping containers (5) one by one is configured, and a wireless communication unit (31) is provided for each refrigerator (10). ) in wireless communication with a sub-terminal unit (35), comprising:
Only one wireless communication unit (31) corresponding to the sub terminal unit (35) is permitted to transmit an operation command for operating the refrigerator (10) corresponding to the wireless communication unit (31). a permission acquisition process of acquiring permission information (95) from a main terminal unit (32) that constitutes the management system (30) together with the sub terminal unit (35);
a transmission process of transmitting the operation command to one of the wireless communication units (31) permitted to transmit the operation command by the permission information (95) after obtaining the permission information (95); A program to be executed by the sub-terminal unit (35). In claim 25 ,
A program for causing the sub terminal unit (35) to execute, as the permission acquisition process, a process of reading and acquiring the permission information (95) displayed on the main terminal unit (32). In claim 25 or 26 ,
Obtaining from the main terminal unit (32) the permission information (95) including communication information for specifying one of the wireless communication units (31) to which the sub terminal unit (35) can transmit the operation command. a program for causing the sub terminal unit (35) to execute a process for obtaining permission in the permission acquisition process. In any one of claims 25-27 ,
A container identification symbol unique to the transportation container (5) to which the refrigerator (10) is attached, and a transportation vehicle (2) in which the transportation container (5) to which the refrigerator (10) is attached is mounted. ) to acquire and display one or both of the vehicle registration information written on the license plate (3) of the sub terminal unit (35). In any one of claims 25-28 ,
A program for causing the sub terminal unit (35) to execute a period limitation process that permits execution of the transmission process only during a preset permission period. In any one of claims 25-29 ,
an operation information acquisition process for acquiring operation information about an operation state of the refrigerator (10) corresponding to the wireless communication unit (31) from the wireless communication unit (31) corresponding to the sub terminal unit (35);
A program for causing the sub terminal unit (35) to execute an operation information display process for displaying the acquired operation information.

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