Cargo handling system, control method for operating cargo handling system, non-transitory computer-readable recording medium storing control program for operating cargo handling system

1 . A cargo handling system that supports, when unloading of a cargo loaded on a vehicle is performed, work of the unloading, the cargo handling system comprising:

an RFID reader/writer that includes a plurality of antennas disposed in a cargo compartment, and transmits and receives a radio wave to and from an RFID tag attached to the cargo through each of the plurality of antennas, the RFID tag being attached to the cargo;

a storage section that stores a list in which ID information of the RFID tag is associated with a delivery location;

a display apparatus disposed in the cargo compartment; and

a control apparatus that acquires the ID information associated with the delivery location from the storage section, further acquires a radio wave intensity of the RFID tag from the RFID reader/writer, and controls, in a case where the radio wave intensity that has been acquired exceeds a threshold value, the display apparatus such that the display apparatus indicates a placement location for an undelivered cargo, the RFID tag having the ID information that has been acquired, the undelivered cargo being a cargo to which the RFID tag is attached,

wherein the display apparatus comprises a plurality of light sources arranged in one-to-one correspondence with the plurality of antennas, and when the control apparatus controls the display apparatus to indicate the placement location of the undelivered cargo, the control apparatus:

(i) turns on the light source corresponding to any antenna that has received the radio wave whose intensity exceeds the threshold value; and

(ii) turns off that light source when the intensity of the radio wave received by the corresponding antenna falls below the threshold value.

2 . The cargo handling system according to claim 1 , further comprising a second light source disposed outside the cargo compartment, wherein

the control apparatus performs lighting control on the second light source in a case where the undelivered cargo is present.

3 . The cargo handling system according to claim 1 , further comprising a second light source disposed outside the cargo compartment, wherein

the control apparatus performs lighting control on the second light source in a case where the undelivered cargo is present and an entrance of the cargo compartment is closed.

4 . The cargo handling system according to claim 1 ,

wherein the control apparatus determines whether the vehicle has arrived at the delivery location based on the vehicle's location information, and when the vehicle has arrived at the delivery location and the entrance to the luggage compartment has been opened, acquires the ID information associated with the delivery location from the storage section, further acquires the radio wave intensity of the RFID tag from the RFID reader/writer, and controls, in a case where the radio wave intensity that has been acquired exceeds the threshold value, the display apparatus such that the display apparatus indicates the placement location for the undelivered cargo,

wherein, after controlling the display apparatus, the control apparatus determines whether the entrance to the luggage compartment is closed; if the entrance is closed the control apparatus terminates the control; whereas if the entrance is not closed, the control apparatus again acquires the ID information associated with the delivery location from the storage section, further acquires the radio wave intensity of the RFID tag from the RFID reader/writer, and controls, in a case where the radio wave intensity that has been acquired exceeds the threshold value, the display apparatus such that the display apparatus indicates the placement location for the undelivered cargo.

5 . The cargo handling system according to claim 1 , wherein the plurality of antennas are arranged at least at four locations—front, rear, left, and right—relative to a center of the luggage compartment, and the plurality of light sources are arranged at an upper end of an inner wall above the corresponding antennas so as to correspond one-to-one with the plurality of antennas.

6 . A control method for operating a cargo handling system that supports, when unloading of a cargo loaded on a vehicle is performed, work of the unloading,

wherein the cargo handling system comprising:

an RFID reader/writer that includes a plurality of antennas disposed in a cargo compartment, and transmits and receives a radio wave to and from an RFID tag attached to the cargo through each of the plurality of antennas, the RFID tag being attached to the cargo;

a storage section that stores a list in which ID information of the RFID tag is associated with a delivery location;

a display apparatus disposed in the cargo compartment, and including a plurality of light sources arranged in one-to-one correspondence with the plurality of antennas; and

a control apparatus,

wherein the control apparatus acquires the ID information associated with the delivery location from the storage section, further acquires a radio wave intensity of the RFID tag from the RFID reader/writer, and controls, in a case where the radio wave intensity that has been acquired exceeds a threshold value, the display apparatus such that the display apparatus indicates a placement location for an undelivered cargo, the RFID tag having the ID information that has been acquired, the undelivered cargo being a cargo to which the RFID tag is attached, and

wherein, when the control apparatus controls the display apparatus to indicate the placement location of the undelivered cargo, the control apparatus:

(i) turns on the light source corresponding to any antenna that has received the radio wave whose intensity exceeds the threshold value; and

(ii) turns off that light source when the intensity of the radio wave received by the corresponding antenna falls below the threshold value.

7 . A non-transitory computer-readable recording medium storing a control program for operating a cargo handling system that supports, when unloading of a cargo loaded on a vehicle is performed, work of the unloading,

wherein the cargo handling system comprising:

an RFID reader/writer that includes a plurality of antennas disposed in a cargo compartment, and transmits and receives a radio wave to and from an RFID tag attached to the cargo through each of the plurality of antennas, the RFID tag being attached to the cargo;

a storage section that stores a list in which ID information of the RFID tag is associated with a delivery location; and

a display apparatus disposed in the cargo compartment, and including a plurality of light sources arranged in one-to-one correspondence with the plurality of antennas;

wherein the control program acquires the ID information associated with the delivery location from the storage section, further acquires a radio wave intensity of the RFID tag from the RFID reader/writer, and controls, in a case where the radio wave intensity that has been acquired exceeds a threshold value, the display apparatus such that the display apparatus indicates a placement location for an undelivered cargo, the RFID tag having the ID information that has been acquired, the undelivered cargo being a cargo to which the RFID tag is attached,

wherein, when the control program controls the display apparatus to indicate the placement location of the undelivered cargo, the control program:

(i) turns on the light source corresponding to any antenna that has received the radio wave whose intensity exceeds the threshold value; and

(ii) turns off that light source when the intensity of the radio wave received by the corresponding antenna falls below the threshold value.