Device and method for analyzing state of manual work by worker, and work analysis program
A device for analyzing a worker's work state, the analysis involving generation of determination data for determining whether worker's manual work is performed in a predetermined work order. This device includes imaging and setting units. The imaging unit images, a work video, a worker's manual working state in which the worker repeatedly performs predetermined work. This predetermined work is performed by repeating a plurality of fundamental work operations by hand. Based on a predetermined motion which is previously set for each of the fundamental work operations, the setting unit sets delimitation information to delimit the work video every fundamental work operation at a timing when the predetermined motion is detected. In the device, a generation unit generates determination data which includes both the imaged work video and the set delimitation information. Based on the determination data, the worker's manual work can be analyzed in various ways.
1. A work analysis device which analyzes a worker's manual work, the work analysis device comprising:
a camera imaging, as a work video, a state where a plurality of fundamental work operations are performed repeatedly and manually in a predetermined order by the worker; and
a processor programmed to:
set delimitation information for delimiting the work video at detection timings at each of which a predetermined motion is detected, based on the predetermined motion which is previously set for each of the fundamental work operations;
generate determination data for determining whether or not the worker's manual work is repeatedly performed according to a predetermined work procedure, the determination data including both the work video and the delimitation information; and
generate, based on the read work analysis program, the determination data such that, of the fundamental work operations, a fundamental work operation performed immediately before a fundamental work operation performed in an order different from the predetermined order is excluded from the determination data, based on the delimitation information.
2. The work analysis device of claim 1 , wherein
the fundamental work operations compose work in which parts taken out of parts boxes assigned to the fundamental work operations are assembled with an assembly target; and
the predetermined motion is assigned to a motion for taking the parts from the parts boxes.
3. The work analysis device of claim 1 , wherein
the fundamental work operations compose work in which parts taken out of parts boxes assigned to the fundamental work operations are assembled with an assembly target; and
the predetermined motion is assigned to a motion for transferring the parts to an assembly position of the assembly target.
4. The work analysis device of claim 1 , wherein
the processor is configured to calculate a normal range of work time for each of the fundamental work operations based on the delimitation information, and to generate, as the determination data, the fundamental work operation whose work time is within the normal range.
5. The work analysis device of claim 4 , wherein
the processor is configured to generate the determination data such that one or more of the fundamental work operations, of which work time is out of the normal range, are excluded from the determination data.
6. A work analysis method for analyzing a worker's manual work, the work analysis method being functionally realized by a processor and a memory in which a work analysis program is stored such that the read work analysis program enables the processor to perform the work analysis method, the work analysis method comprising:
making a camera image, as a work video, a state where a plurality of fundamental work operations are performed repeatedly and manually in a predetermined order by a worker;
setting delimitation information for delimiting the work video at detection timings at each of which a predetermined motion is detected, based on the predetermined motion which is previously set for each of the fundamental work operations; and
generating determination data for determining whether or not the worker's manual work is repeatedly performed according to a predetermined work procedure, the determination data including both the work video and the delimitation information, wherein, in the generated determination data, of the fundamental work operations, a fundamental work operation performed immediately before a fundamental work operation performed in an order different from the predetermined order is excluded from the determination data, based on the delimitation information.
7. A work analysis device which analyzes a worker's manual work, the work analysis device comprising:
a camera configured to image, as a work video, a state where a plurality of fundamental work operations are performed repeatedly and manually in a predetermined order by the worker, the fundamental work operations being a worker's taking action of parts from each of a plurality of parts boxes; and
a processor programmed to:
set monitoring areas respectively to the parts boxes within an imaging range of the camera, based on an image captured by the camera, the monitoring areas including every one of the parts boxes, the monitoring areas corresponding to the parts boxes which are moved in a predetermined movement state, when the parts boxes are individually moved by the worker in the predetermined movement state;
set delimitation information for delimiting the work video at detection timings at each of which a predetermined motion is detected, based on the predetermined motion which is previously set for each of the fundamental work operations; and
generate determination data for determining whether or not the worker's manual work is repeatedly performed according to a predetermined work procedure, the determination data including both the work video and the delimitation information.
8. The work support device of claim 7 , wherein the predetermined movement state is a swinging state of one or more of the parts boxes that are repeated on an assumption that the parts boxes are returned to original positions thereof.