Work management system and work machine
An object of the present invention is to provide a work management system that enables efficient extraction of approach events that are likely to result in contact between a work machine and a worker. For this object, a management server assesses whether or not there is approach between a work machine and a worker, on the basis of positional information about the work machine measured by a work machine position measuring apparatus, and positional information about the worker measured by a worker position measuring apparatus, and, when assessing that there is approach, assesses an approached state of the approach from a state of the work machine measured by a work machine state measuring apparatus at the time of the assessment of the approach, on the basis of a preset approached state definition, and records the state of the work machine measured at the time of the assessment of the approach, in association with the approached state, and outputs the state of the work machine to a display apparatus in association with the approached state.
1 . A work management system comprising:
a management server;
a display apparatus that displays information outputted from the management server; and
a work machine configured to receive action commands from the management server, wherein
the management server is configured to:
store an approached state definition in which approached states are defined from a combination including a movable state, an action state, a distance state, and a blind spot state in advance, and information on the action commands according to the approached states, the movable state being whether or not an operation of the work machine is limited, the action state being whether or not the work machine is acting, the distance state being a state regarding a distance between the work machine and a worker who performs work near the work machine, the blind spot state being whether or not the worker is present within a blind spot area of the work machine; and
execute steps of:
computing the movable state, the action state, the distance state, and the blind spot state based on measurement information of a work machine state measuring apparatus that measures a state of the work machine including a posture of a front device of the work machine;
assessing whether or not there is approach between the work machine and the worker, on a basis of positional information about the work machine measured by a work machine position measuring apparatus that measures the positional information about the work machine, and positional information about the worker measured by a worker position measuring apparatus that measures the positional information about the worker;
when assessing that there is approach, assessing an approached state of the approach from the computed movable state, action state, distance state, and blind spot state, on a basis of the approached state definition;
recording the state of the work machine measured at a time when it is assessed that there is the approach, in association with the approached state of the approach, and outputting the state of the work machine to the display apparatus in association with the approached state of the approach; and
outputting, to the work machine, an action command according to the approached state of the approach, and
the work machine automatically decelerates and stops an action of the work machine according to the action command received from the management server.
2 . The work management system according to claim 1 , wherein
the work management system includes an image-capturing apparatus that captures an image of the work machine and the worker, and
the management server is configured to, when assessing that there is the approach, record an image of the work machine and the worker captured with the image-capturing apparatus at the time when it is assessed that there is the approach, in association with the approached state, and output the image to the display apparatus.
3 . The work management system according to claim 1 , wherein
the management server is configured to, when assessing that there is the approach, create a reproduction video that visualizes actions of the work machine and the worker on a basis of the positional information about the work machine, the positional information about the worker, and the state of the work machine that are measured at the time when it is assessed that there is the approach, record the reproduction video in association with the approached state, and output the reproduction video to the display apparatus.
4 . The work management system according to claim 1 , wherein
the management server is configured to, when assessing that there is the approach, calculate a degree of fault of an operator of the work machine and a degree of fault of the worker regarding an occurrence of the approach on a basis of measurement information of the work machine position measuring apparatus, the worker position measuring apparatus, and the work machine state measuring apparatus at the time when it is assessed that there is the approach, record the degrees of fault in association with the approached state, and output the degrees of fault to the display apparatus.