Abstract: A combine including a grain tank that retains grain conveyed from a threshing device; a discharge auger; a temporary retention unit within the grain tank that temporarily retains part of the grain and has a discharge port; a quality measurement unit that detects quality of the grain retained in the temporary retention unit; a shutter transitionable between a position where the discharge port is open and a position where the discharge port is closed; a control unit that opens the shutter when the measurement by the quality measurement unit is completed and closes the shutter when all of the grain in the temporary retention unit is discharged; a volume measurement unit that detects the retention volume of the grain retained in the grain tank; and a determination unit that determines whether the retention volume exceeds a predetermined value, and if so, the control unit stops the opening/closing control.

Abstract: A combine that can accurately measure the weight of grain retained in a grain tank is provided. When a weight measurement signal is output from a measurement switch 66, a weight measurement decision unit 75 instructs a working state determination unit 71 to perform working state determination. If it is determined that the combine is in the working state, the weight measurement decision unit 75 does not instruct a load cell 39 to perform weight measurement.

Abstract: A combine includes: a yield measurement container (32) having a yield receiving opening (32a) for receiving at least some of grains supplied to a grain tank (15) which accumulates grains obtained by threshing, a yield discharge opening (32b) for discharging received grains, and a yield shutter (34) for opening and closing the yield discharge opening (32b); a yield measurement section for detecting, while the yield shutter (34) is closed, that a predetermined volume of grains has been accumulated in the yield measurement container (32) and then outputting a detection signal; a time calculation section for calculating, based on the detection signal, an accumulating time required to accumulate the predetermined volume of grains; and a yield calculation section for calculating a yield per unit travel based on a travel speed and the accumulation time.

Abstract: A combine including: a measurement sensor that measures a retention volume amount of a grain retained in a grain tank; a determination unit that determines whether or not the retention volume amount measured by the measurement sensor exceeds a preset threshold; a notification unit that, if it is determined by the determination unit that the retention volume amount exceeds the threshold, notifies an operator of information indicating that the amount of the grain exceeds the threshold; a change unit that can change the threshold; and a communication unit that communicates with an external server. The change unit changes the threshold based on data received from the external server.

Abstract: Disclosed are a work machine and a communication monitoring method that allow recording of work information even in the event of interruption of communication in a communication path between the work machine, a mobile communication terminal and a server. There is provided a control section (71) configured to transmit work information to a server (Z) via a communication section (68) and a smartphone (Y) if a monitoring section (69) detects that communication is possible between the communication section (68) and the smartphone (Y) and also to cause a storage section (70) to store the work information if the monitoring section (69) detects that communication is not possible between the communication section (68) and the smartphone (Y).

Abstract: A combine that can accurately measure the weight of grain retained in a grain tank is provided. When a weight measurement signal is output from a measurement switch 66, a weight measurement decision unit 75 instructs a working state determination unit 71 to perform working state determination. If it is determined that the combine is in the working state, the weight measurement decision unit 75 does not instruct a load cell 39 to perform weight measurement.

Abstract: A work device that performs work using a work unit while traveling, or a management system in which the work device is incorporated includes: a travel information generation unit that, over time, generates travel information indicating a travel state; a work information generation unit that, over time, generates work information indicating a work state for the work unit; a travel evaluation unit that, based on the travel information and the work information, divides the traveling of the work device into non-work traveling and actual work traveling; and a data visualization unit that generates visual data according to which the result of the division performed by the travel evaluation unit is made visible.

Abstract: A combine that can accurately measure the weight of grain retained in a grain tank is provided. When a weight measurement signal is output from a measurement switch 66, a weight measurement decision unit 75 instructs a working state determination unit 71 to perform working state determination. If it is determined that the combine is in the working state, the weight measurement decision unit 75 does not instruct a load cell 39 to perform weight measurement.

Abstract: A work device that performs work using a work unit while traveling, or a management system in which the work device is incorporated includes: a travel information generation unit that, over time, generates travel information indicating a travel state; a work information generation unit that, over time, generates work information indicating a work state for the work unit; a travel evaluation unit that, based on the travel information and the work information, divides the traveling of the work device into non-work traveling and actual work traveling; and a data visualization unit that generates visual data according to which the result of the division performed by the travel evaluation unit is made visible.

Abstract: A work device that performs work using a work unit while traveling, or a management system in which the work device is incorporated includes: a travel information generation unit that, over time, generates travel information indicating a travel state; a work information generation unit that, over time, generates work information indicating a work state for the work unit; a travel evaluation unit that, based on the travel information and the work information, divides the traveling of the work device into non-work traveling and actual work traveling; and a data visualization unit that generates visual data according to which the result of the division performed by the travel evaluation unit is made visible.

Abstract: Disclosed are a work machine and a communication monitoring method that allow recording of work information even in the event of interruption of communication in a communication path between the work machine, a mobile communication terminal and a server. There is provided a control section (71) configured to transmit work information to a server (Z) via a communication section (68) and a smartphone (Y) if a monitoring section (69) detects that communication is possible between the communication section (68) and the smartphone (Y) and also to cause a storage section (70) to store the work information if the monitoring section (69) detects that communication is not possible between the communication section (68) and the smartphone (Y).

Abstract: A combine includes: a yield measurement container (32) having a yield receiving opening (32a) for receiving at least some of grains supplied to a grain tank (15) which accumulates grains obtained by threshing, a yield discharge opening (32b) for discharging received grains, and a yield shutter (34) for opening and closing the yield discharge opening (32b); a yield measurement section for detecting, while the yield shutter (34) is closed, that a predetermined volume of grains has been accumulated in the yield measurement container (32) and then outputting a detection signal; a time calculation section for calculating, based on the detection signal, an accumulating time required to accumulate the predetermined volume of grains; and a yield calculation section for calculating a yield per unit travel based on a travel speed and the accumulation time.

Abstract: The present invention provides a combine that can accurately measure the weight of grain retained in a grain tank. When a weight measurement signal is output from a measurement switch 66, a weight measurement decision unit 75 instructs a working state determination unit 71 to perform working state determination. If it is determined that the combine is in the working state, the weight measurement decision unit 75 does not instruct a load cell 39 to perform weight measurement.

Abstract: A work device that performs work using a work unit while traveling, or a management system in which the work device is incorporated includes: a travel information generation unit that, over time, generates travel information indicating a travel state; a work information generation unit that, over time, generates work information indicating a work state for the work unit; a travel evaluation unit that, based on the travel information and the work information, divides the traveling of the work device into non-work traveling and actual work traveling; and a data visualization unit that generates visual data according to which the result of the division performed by the travel evaluation unit is made visible.