Management apparatus, control method for management apparatus, and non-transitory computer-readable storage medium

1. A management apparatus for managing a work machine capable of operating in a plurality of work modes, comprising:

one or more memories storing instructions; and

one or more processors executing the instructions to:

receive work information of the work machine;

receive, if a work mode of the work machine is changed, work mode change information from the work machine;

store the work information and the work mode in association with each other;

specify a failure based on the stored information; and

control an operation of the work machine,

wherein the one or more processors further execute the instructions to:

specify increase/decrease of the failure based on a change between work information before the work mode is changed and work information after the work mode is changed, and

operate, if the failure increases in the work mode after the change, the work machine in the work mode before the change,

wherein the work modes include a plurality of traveling speed modes concerning a traveling speed of the work machine,

wherein the work information includes a slip ratio indicating a ratio at which a slip occurs in the work machine,

wherein the one or more processors further execute the instructions to:

specify increase/decrease of the slip ratio based on a change between a slip ratio in a first traveling speed mode and a slip ratio in a second traveling speed mode that is changed from the first traveling speed mode, and

switch, if the slip ratio increases in the second traveling speed mode, to the first traveling speed mode, and operate the work machine in the first traveling speed mode.

2. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

receive work information from each of a plurality of work machines of a single type,

receive work mode change information from each of the plurality of work machines of the single type, and

statistically specify the failure based on pieces of the stored information with respect to the plurality of work machines of the single type.

3. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

receive work information from each of a plurality of work machines that operate in the same work area,

receive work mode change information from each of the plurality of work machines that operate in the same work area, and

statistically specify the failure based on pieces of the stored information with respect to the plurality of work machines that operate in the same work area.

4. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

further specify the work mode with the less failure as a work mode to be recommended.

5. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

operate, in different work modes, a plurality of work machines that operate in the same work area,

based on pieces of the stored information with respect to the plurality of work machines, statistically specify the failure, and also specify the work mode with the less failure as a work mode to be recommended, and

operate each of the plurality of work machines in the specified work mode.

6. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

specify increase/decrease of the failure based on a change between work information before the work mode is changed and work information after the work mode is changed, and

make, if the failure increases in the work mode after the change, a notification that the work mode before the change is more suitable.

7. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

specify increase/decrease of the failure based on a change between work information before the work mode is changed and work information after the work mode is changed, and specify, if the failure increases in the work mode after the change, based on an accumulation result of the stored information, the work mode with the less failure as a work mode to be recommended, and

make a notification of the specified work mode.

8. The apparatus according to claim 1 , wherein the one or more processors further execute the instructions to:

based on first work information of a first work machine operating in a first work mode and second work information of a second work machine operating in a second work mode among a plurality of work machines, specify the work mode of the work machine with higher work efficiency, and

make a notification of the specified work mode.

9. The apparatus according to claim 1 , wherein the work modes include at least one of a set of a plurality of modes concerning a work speed of a work portion provided in the work machine, a set of a plurality of modes concerning a traveling speed of the work machine, a set of a plurality of modes concerning a work time of the work machine, and a set of a plurality of modes concerning a work start point of the work machine.

10. The apparatus according to claim 1 , wherein the work information includes at least one of a slip ratio indicating a ratio at which a slip occurs in the work machine, an engine speed for causing the work machine to travel, a load imposed on a work portion provided in the work machine, and a completion ratio of a work performed by the work machine.

11. A control method for a management apparatus that manages a work machine capable of operating in a plurality of work modes, comprising:

receiving work information of the work machine;

receiving, if a work mode of the work machine is changed, work mode change information from the work machine;

storing the work information and the work mode in association with each other in a storage unit;

specifying a failure based on the information stored in the storage unit; and

controlling an operation of the work machine,

wherein in the specifying, increase/decrease of the failure is specified based on a change between work information before the work mode is changed and work information after the work mode is changed, and

in the controlling, if the failure increases in the work mode after the change, the work machine is operated in the work mode before the change,

wherein the work modes include a plurality of traveling speed modes concerning a traveling speed of the work machine,

wherein the work information includes a slip ratio indicating a ratio at which a slip occurs in the work machine, and

wherein the control method further comprising:

specifying an increase/decrease of the slip ratio based on a change between a slip ratio in a first traveling speed mode and a slip ratio in a second traveling speed mode that is changed from the first traveling speed mode, and

switching, if the slip ratio increases in the second traveling speed mode, to the first traveling speed mode, and operating the work machine in the first traveling speed mode.

12. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for a management apparatus defined in claim 11 .