JP5937499B2 - Work content classification system and work content classification method - Google Patents

Description

  The present invention relates to a work content classification system and a work content classification method for classifying work content of a work machine.

  Conventionally, for example, using a sensor for detecting a clutch pedal operation amount of a work machine and a sensor for detecting an operation position of a shift lever for a work machine such as a tractor, it is detected whether or not the work machine is in a working state. (For example, refer to Patent Document 1).

JP 2010-188961 A

The improvement of work equipment work contributes to the improvement of productivity at construction sites and the reduction of CO ₂ emissions by saving light oil used. In order to improve the work, it is necessary to grasp the problems of the current work. Since the load applied to the work machine varies depending on the work content, it is necessary to classify the work content finely and calculate the productivity (for example, fuel consumption) for each work content. However, the method described in Patent Document 1 merely determines whether or not work is being performed, and the work content cannot be classified more finely.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a work content classification system and a work content classification method that can classify the work content of a work machine more finely.

In order to achieve the above object, a work content classification system according to the present invention is a work content classification system for classifying a plurality of work content including work on a work object by a work machine equipped with a drive source, Information acquisition means for acquiring operation state information, which is information on the operation state of the drive source in time units, and work object holding information including at least information indicating a holding amount of the work object in the work implement; A work content classification unit that classifies the work content of each time using the operation state information and the work object holding information, and a classification result output unit that outputs a classification result by the work content classification unit. And

  In the work content classification system according to the present invention, not only the operation state information of the drive source, but also the information that can be used to determine whether the work implement holds the work object, the work is determined. The work contents can be classified in more detail.

  It is desirable that the work content classification means classifies the work content of each time by further using threshold information regarding the operation state information of the drive source. According to this configuration, it is possible to classify the work contents by comparing the threshold information of the operation state information of the driving source with the operation state information, and classify the work contents according to the tendency of the operation state information. Therefore, the work contents can be classified more finely.

  The information acquisition means acquires time-series driving source operation state information and time-series operation object holding information, and the work content classification means includes time-series driving source operation state information and time-series driving source information. It is desirable to classify work contents based on a time series with work object holding information. By classifying the work contents in a state where the operation state information and the work object holding information are arranged in time series, for example, the work contents can be classified based on a change in the operation state of the drive source in a predetermined period. .

  It is desirable that the work content classification means classify the work content based on the degree of temporal variation in the operating state of the drive source. According to this configuration, since the work contents are classified based on the degree of variation in the operating state of the drive source, the work contents can be classified based on the tendency of the degree of variation in the operating state of the drive source.

  The information acquisition means acquires fuel consumption information in predetermined time units, and calculates productivity information based on the fuel consumption information corresponding to the time of each work content for each work content classified by the work content classification means. It is desirable to further include productivity information calculation means and productivity information output means for outputting the productivity information calculated by the productivity information calculation means. According to this configuration, since the productivity information is calculated for each work content, it is possible to calculate useful information for improving the work of the work machine.

  The detection result by the drive source operation state detection means for detecting the operation state of the drive source, the work object detection means for detecting whether or not the work implement holds the work object, and the detection result by the drive source operation state detection means. Detection information management means for generating work object holding information based on a detection result by the work object detection means, and generating information based on the detection result by the work object detection means. It is desirable to acquire state information and work object holding information. According to this configuration, it is possible to detect the operating state of the drive source, detect whether or not the work object is held, and perform work classification of the work implement based on each detection result.

  By the way, the present invention can be described as the invention of the work content classification system as described above, and can also be described as the invention of the work content classification method as follows. This is substantially the same invention only in different categories, and has the same operations and effects.

That is, the work content classification method according to the present invention is a work content classification method for classifying a plurality of work content including work for work objects by a work machine equipped with a drive source, which is executed by a work content classification system. An information acquisition step for acquiring operation state information that is information on an operation state of the drive source in predetermined time units and work object holding information including at least information indicating a holding amount of the work object in the work implement ; A work content classification step of classifying the work content of each time based on the operation state information of the source and the work object holding information; and a classification result output step of outputting a classification result by the work content classification step It is characterized by that.

  In the present invention, not only the operation state information that is information on the operation state of the drive source in a predetermined time unit, but also the work object holding that includes at least information that can determine whether or not the work implement holds the work object. Since the work contents of the work machine are classified using the information, the work contents of the work machine can be classified more finely.

It is a figure which shows the functional structure of the work content classification | category system which concerns on embodiment of this invention. It is a flowchart of the whole process which calculates productivity. It is a figure which shows the work content of a hydraulic shovel. It is a flowchart of the measurement process of the soil volume of a hydraulic excavator. It is a flowchart of the measurement process of the engine speed of a hydraulic excavator. It is a flowchart of the measurement process of the fuel consumption of a hydraulic excavator. It is a graph of the relationship between the engine speed of a hydraulic excavator and fuel consumption. It is a flowchart of the process which classifies the work content of a hydraulic shovel. It is a flowchart of the process which classifies the work content of a hydraulic shovel. It is a figure which shows the relationship between work content and an engine speed. It is a figure which shows the work content of a mobile crane. It is a flowchart of the measurement process of the work amount of a mobile crane. It is a flowchart of the process which classifies the work content of a mobile crane. It is a flowchart of the process which classifies the work content of a mobile crane.

  Hereinafter, preferred embodiments of a work content classification system and a work content classification method according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

(Configuration of work content classification system)
FIG. 1 shows a work content classification system 1 according to the present embodiment. As shown in FIG. 1, the work content classification system 1 includes a work machine 10 and a work content classification server 20, and the work machine 10 and the work content classification server 20 are connected by a wireless network. Information can be transmitted and received via the wireless network. In the work content classification system 1, the work machine 10 performs various work (for example, movement, transportation, etc.), manages information during the work, and the work content classification server 20 uses the information managed by the work machine 10 as described above. Obtained via a network, classify a plurality of work contents based on the obtained information, and calculate productivity information for each work contents. Here, the productivity information is information that can serve as an index of work production efficiency, such as information on fuel consumption for a predetermined work.

  The work machine 10 is, for example, a construction machine or a heavy machine such as a hydraulic excavator or a mobile crane. The work machine 10 is equipped with an internal combustion engine as a drive source, and performs various operations according to the operation of the drive source. The work machine 10 includes a work object detection unit 11 (work object detection unit), a drive source operation state detection unit 12 (drive source operation state detection unit), a fuel consumption measurement unit 13, and detection / measurement result management. Unit 14 (detection result management means).

  The work object detection unit 11 is means for detecting information related to the work amount including information that can be used to determine whether or not the work object is held. Specifically, the work object detection unit 11 is a sensor provided in the operating device of the work machine 10, detects the amount of work object held in the operating device of the work machine 10, and the detection result. The sensor signal (for example, a signal indicating the holding amount of the work object) and the detection time are transmitted to the detection / measurement result management unit 14 every predetermined time unit (for example, one minute). The sensor is installed in the bucket part of the hydraulic excavator and outputs a signal that can judge the amount of soil in the bucket, or the signal that is installed in the jib part of the mobile crane and can judge the presence or absence of a load on the hook part. Is output. A weight sensor is an example of a sensor provided in the jib portion. Further, a sensor may be provided in the hook portion of the mobile crane so that the sensor can output a signal that can determine whether or not the hook portion is suspended. Specifically, as each of the above sensors, those conventionally used can be used.

  Here, the work object means, for example, a transported object (for example, in the case of a hydraulic excavator that excavates and transports soil, the soil to be transported corresponds). The work amount is an index for quantitatively indicating the result of work on the work object held by the work machine 10 and includes information on whether or not the work object is held. For example, the amount of excavated soil in a hydraulic excavator, the lifting distance of a suspended load in a moving crane that lifts the suspended load, and the like.

  The drive source operation state detector 12 is means for detecting the operation state of the drive source. Specifically, the drive source operation state detection unit 12 is a sensor provided in the drive source of the work machine 10, detects the operation state (for example, the engine speed) of the drive source, and operates the drive source. A sensor signal indicating the state (for example, a signal indicating the engine speed) and a detection time are sent to the fuel consumption measuring unit 13 and the detection / measurement result managing unit 14. The drive source operation state detector 12 measures the number of revolutions of the engine per predetermined time (for example, the number of revolutions per minute (rpm)). The engine speed indicates an amount by which an engine that is a power source of the work machine 10 rotates per unit time (for example, one minute).

  The fuel consumption measuring unit 13 measures the fuel consumption every predetermined time unit (for example, 1 minute). The fuel consumption measuring unit 13 is realized by a computer that includes a CPU (Central Processing Unit), a memory, a communication module, and the like included in the work machine 10. The computer functions as the fuel consumption measuring unit 13 by executing a predetermined program. The fuel consumption measuring unit 13 measures (calculates) the fuel consumption by calculating the fuel consumption based on a predetermined correlation between the fuel consumption and the engine speed (for details) Will be described later). The fuel consumption measurement unit 13 sends the measured fuel consumption and measurement time to the detection / measurement result management unit 14.

  The detection / measurement result management unit 14 generates information based on the detection / measurement results by the work object detection unit 11, the drive source operation state detection unit 12, and the fuel consumption measurement unit 13, and holds the generated information. To do. Further, the detection / measurement result management unit 14 transmits the stored information to the work content classification server 20 via the network at a predetermined timing. The detection / measurement result management unit 14 is realized by a computer including a CPU, a memory, a communication module, and the like, similar to the fuel consumption measurement unit 13. The CPU functions as the detection / measurement result management unit 14 by executing a predetermined program.

  The detection / measurement result management unit 14 includes, at a predetermined timing (for example, every minute), information including at least a holding amount of the work object based on the sensor signal transmitted by the work object detection unit 11 and the work target. Work object holding information, which is information associated with the detection time sent by the object detection unit 11, is generated, and the work object holding information is held.

  Further, the detection / measurement result management unit 14 reads out information indicating the operation state of the drive source from the sensor signal transmitted from the drive source operation state detection unit 12, and the operation state of the drive source and the drive source operation state detection unit 12. The drive source operating state information, which is information associated with the detection time transmitted by is generated. The detection / measurement result management unit 14 is information that associates the fuel consumption sent as a result of measurement by the fuel consumption measurement unit 13 and the measurement time sent as a result of measurement by the fuel consumption measurement unit 13. Generate some fuel consumption information.

  The detection / measurement result management unit 14 holds the generated work object holding information, drive source operation state information, and fuel consumption information in the order of time information (detection time, measurement time) included in each information. Accordingly, if the detection / measurement result management unit 14 transmits information to the work content classification server 20 in the retained order, the detection / measurement result management unit 14 transmits the work object holding information, the drive source operation state information, and the fuel consumption amount information in time series. be able to.

  The detection / measurement result management unit 14 transmits the held information to the work content classification server 20 via the network. It is assumed that the detection / measurement result management unit 14 transmits information to the work content classification server 20 in a state of being arranged in time series. The transmission timing is preferably the timing when the work by the work machine 10 is completed.

  The work content classification server 20 classifies the work content of the work machine 10 based on the information acquired from the work machine 10, and calculates and outputs productivity information for each work content. The work content classification server 20 is configured by hardware such as a CPU (Central Processing Unit) and a memory. The work content classification server 20 includes an information acquisition unit 21 (information acquisition unit), a work content classification unit 22 (work content classification unit), a classification result output unit 23 (classification result output unit), and productivity information calculation. A unit 24 (productivity information calculation means) and a productivity information output unit 25 (productivity information output means) are provided. By executing a program held by the CPU of the work content classification server 20, the information acquisition unit 21, the work content classification unit 22, the classification result output unit 23, the productivity information calculation unit 24, and the productivity information output unit 25. Function as.

  The information acquisition unit 21 receives the work object holding information, the operation state information, and the fuel consumption amount information transmitted from the work machine 10 via the network, so that the operation state information, the work object holding information, and Get fuel consumption information. In addition, the information acquisition part 21 is based on the detection time included in the work object holding information, the detection time included in the operation state information, and the measurement time included in the fuel consumption information. The operating state information is associated with the fuel consumption information. That is, the information acquisition unit 21 has substantially the same detection time included in the work object holding information, detection time included in the operation state information, and measurement time included in the fuel consumption information (for example, Each of the times has the same “minute” value), the work object holding information, the operation state information, and the fuel consumption information are associated with each other. Thereby, the work object holding information, the operation state information, and the fuel consumption information input to the information acquisition unit 21 can be handled as time-series information corresponding to the same time.

  The work content classification unit 22 classifies the work content at each time using the operation state information acquired by the information acquisition unit 21 and the work object holding information. Details of the classification method will be described later.

  The classification result output unit 23 outputs the result of classification by the work content classification unit 22. Specifically, the classified result is sent to the productivity information calculation unit 24. The classification result output unit 23 may transmit the result of classification by the work content classification unit 22 to an external device or display it on a display unit.

  The productivity information calculation unit 24 calculates productivity information based on the classification result and fuel consumption information acquired from the classification result output unit 23. Details of the calculation method will be described later. The productivity information output unit 25 outputs the productivity information calculated by the productivity information calculation unit 24. The productivity information output unit 25 outputs the productivity information to the storage means of the work content classification server 20, transmits it to an external device, and outputs it to the display means.

(Description of overall processing)
Next, the overall process executed by the work content classification system 1 according to the present embodiment will be described using the flowchart of FIG. In the overall processing here, the work machine 10 performs various work, manages information during the work, the work content classification server 20 acquires information managed by the work machine 10, and based on the acquired information. The work contents are classified and productivity information for each work contents is calculated and output.

  When the work machine 10 detects the start of the work operation by the operation of the operator of the work machine 10 (step S1), the work machine 10 detects the work object detection unit 11, the drive source operation state detection unit 12, and the fuel consumption. The quantity measuring unit 13 is activated. The sensor signal (for example, a signal indicating the holding amount of the work object) output from the work object detection unit 11 which is a sensor provided in the device of the work machine 10 is detected and measured in a predetermined time unit. 14, the detection / measurement result management unit 14 generates work object holding information including at least whether or not the work machine 10 holds the work object based on the signal of the sensor, Work object holding information is held (step S2).

  In addition, in a predetermined time unit, the drive source operation state detection unit 12 sends a sensor signal that can determine the rotation speed of the drive source to the detection / measurement result management unit 14, and the detection / measurement result management unit 14 Operation state information is generated based on the signal of the sensor, and the detection / measurement result management unit 14 holds the fuel consumption amount information (step S3).

  Then, in a predetermined time unit, the fuel consumption measuring unit 13 measures the fuel consumption, and sends the measurement result to the detection / measurement result management unit 14. The detection / measurement result management unit 14 is based on the measurement result. The fuel consumption information is generated and the fuel consumption information is held (step S4). Note that the processing in steps S2 to S4 may be executed in synchronization.

  When the work machine 10 continues to work, that is, when the work machine 10 has not detected a work end instruction from the operator of the work machine 10 (step S5; No), steps S2 to S4 are executed again. To do.

  When the work machine 10 detects a work end instruction from the operator of the work machine 10 (step S5; Yes), the detection / measurement result management unit 14 performs work object holding information, operation state information, and fuel consumption information. Is output to the work content classification server 20 via the network (step S6). In response to this, the information acquisition unit 21 acquires the information output from the detection / measurement result management unit 14 via the network (step S7, information acquisition step).

  The work content classification unit 22 classifies the work content executed by the work implement 10 using the work object holding information and the operation state information, and the classification result output unit 23 classifies the work content by the work content classification unit 22. The result is output to the productivity information calculation unit 24 (step S8, work content classification step, classification result output step).

  The productivity information calculation unit 24 calculates the productivity information for each work content using the result of classifying the work content and the fuel consumption information, and outputs the result calculated by the productivity information output unit 25 ( Step S9).

(Example of calculating work productivity of hydraulic excavators)
Next, the work productivity calculation method will be described separately for the case where the work machine 10 is a hydraulic excavator and the case where it is a mobile crane. First, a method for calculating work productivity when the work implement 10 is a hydraulic excavator will be described. Here, the hydraulic excavator is a self-propelled construction machine in which a bucket is attached to the tip of a multi-joint arm operated by hydraulic pressure. The hydraulic excavator performs various operations such as excavating soil by operating a bucket via an arm. Further, the bucket is provided with a sensor that functions as the work object detection unit 11. The sensor outputs a signal based on the amount of soil in the bucket.

  Here, the types of work contents of the hydraulic excavator will be described. As shown in FIG. 3, the excavator works in a state where “the engine is stopped and the vehicle body is stopped” and “the engine is idling and the vehicle body is stopped”. There is a certain “idling”, “rotation” that is “moving an empty bucket”, “transport” that is “moving a bucket containing soil”, and “landing by moving a bucket” There are “leveling” and “movement” which is a state of “moving the vehicle body with the arm fixed”.

(Work volume measurement process)
First, detailed processing of the work amount measurement in step S2 in the flowchart of FIG. 2 will be described using the flowchart shown in FIG. The work amount of the excavator shall be the amount of soil in which excavated soil is transported by buckets.

The detection / measurement result management unit 14 captures a sensor signal sent from the work object detection unit 11, which is a sensor attached to the bucket of the hydraulic excavator, to the detection / measurement result management unit 14 at regular intervals (step S <b> 21). ). The sensor signal is a signal corresponding to the amount of soil in the bucket. The detection and measurement result management section 14 reads the sensor signal, if unable to extract information indicating a direct soil amount S _t from the sensor signals directly, defined in the program to function as the detection and measurement result management section 14 The bucket soil volume S is measured by specifying the bucket soil volume S corresponding to the sensor signal (step S22). In addition, when the information regarding the amount of soil in the bucket can be directly extracted from the sensor signal, the detection / measurement result management unit 14 reads the information in the sensor signal to specify the amount of soil S in the bucket. Also good. Then, the detection / measurement result management unit 14 generates information associating the information generation time t with the information on the volume S of the bucket as work object holding information, and the detection / measurement result management unit 14 Work object holding information is held (step S23).

(Engine speed measurement process)
Next, detailed processing of “measure engine speed” in step S3 in the flowchart of FIG. 2 will be described using the flowchart shown in FIG.

  The detection / measurement result management unit 14 captures a sensor signal in the engine speed measurement sensor functioning as the drive source operation state detection unit 12 at regular time intervals (step S31). The detection / measurement result management unit 14 Then, the acquired sensor signal is read and the engine speed e is measured (step S32). When the engine speed cannot be directly read from the sensor signal, the detection / measurement result management unit 14 uses the sensor signal for measuring the engine speed defined in the program functioning as the detection / measurement result management unit 14. The engine speed e may be measured by specifying the engine speed corresponding to.

  Then, the detection / measurement result management unit 14 generates information on the engine speed e at time t as operation state information, and the detection / measurement result management unit 14 holds the operation state information (step S33). .

(Fuel consumption measurement process)
Next, detailed processing of “measurement of fuel consumption” in step S4 in the flowchart of FIG. 2 will be described using the flowchart shown in FIG.

  In the fuel consumption measurement process of this embodiment, the fuel consumption corresponding to the measurement time is measured using the correlation between the engine speed measured in the engine speed measurement process and the fuel consumption.

First, the fuel consumption measuring unit 13 reads the engine speed of the operating state information held by the detection / measurement result management unit 14 in the engine speed measurement process (step S41). The fuel consumption measuring unit 13 may specify the engine speed by taking in a sensor signal from a sensor for measuring the engine speed from the drive source operating state detecting unit 12. Then, the fuel consumption measuring unit 13 calculates the fuel consumption based on the engine speed of the operating state information (step S42). Here, as shown in FIG. 7, the relationship between the engine speed (rpm) and the fuel consumption (L) during idling is an approximate curve equation y = ax ² + bx + c (x is the engine speed per minute). , Y can be expressed by fuel consumption), the fuel consumption measurement unit 13 uses the engine speed et at the time _t and the correction value k of the fuel consumption at the time of work to calculate the fuel at the time t. the consumption _{f t} is calculated by equation (1) below.
f _t = (ae _t ² + be _t + c) × k (1)

  Specifically, the fuel consumption measuring unit 13 defines the above equation (1) in the program functioning as the fuel consumption measuring unit 13, and a, b, c, k in the equation (1). The value is also defined in the program, and the fuel consumption is calculated based on the defined equation (1), the values of a, b, c, k, and the engine speed read in step S41. Can do. Then, the fuel consumption measuring unit 13 sends the fuel consumption to the detection / measurement result management unit 14, and the detection / measurement result management unit 14 uses the fuel consumption information at time t as fuel consumption information. The detection / measurement result management unit 14 generates the fuel consumption information (step S43).

(Work content classification)
Next, detailed processing of “work content classification” in step S7 in the flowchart of FIG. 2 will be described with reference to the flowcharts shown in FIGS.

  First, the information acquisition unit 21 reads the amount of soil and the engine speed at each time from the work object holding information and the operation state information acquired from the work machine 10 (step S61). Subsequently, the work content classification server 20 reads the reference value (for example, 700 (rpm)) of the idling engine speed defined by the program or the like (step S62), and indicates the first threshold value of the engine speed. Information is read (step S63), and information indicating the second threshold value of the engine speed is read (step S64). Then, the work content classification unit 22 starts to classify the work content from the beginning of the work time (step S65). The value of time t corresponding to the work first time is set to 1, and the value of time t corresponding to the work end time is set to n. The reference value of the engine speed for idling is a reference value for determining whether the work content is “idling”, and the first threshold value is whether the work content is “movement”. The second threshold value is information for determining whether or not the work content is “rotation”. The first threshold is assumed to be smaller than the second threshold.

  The work content classification unit 22 determines whether or not the engine speed at time t is 0 (step S66). When the engine speed at time t is 0 (step S66; Yes), the work content classification unit 22 classifies the work content at time t as “stop” (step S67), and moves to step S73.

  When the engine speed at time t is not 0 (step S66; No), the work content classification unit 22 determines whether or not the engine speed is equal to or less than a reference value of the idling engine speed (step S68). If the engine speed is equal to or lower than the reference value of the engine speed for idling (step S68; Yes), the work content classification unit 22 classifies the work content at time t as “idling” (step S69). Move to S73.

When the engine speed exceeds the reference value of the idling engine speed (step S68: No), the work content classification unit 22 determines whether or not there is soil in the bucket (step S70). Specifically, work classification unit 22 refers to the soil quantity S _t at time t is determined whether the soil is in the bucket. If the amount of soil S _t > 0 (step S70; Yes), the work content classification unit 22 classifies the work at time t as “transportation”, and moves to step S73.

If the amount of soil S _t > 0 is not satisfied (step S70; No), the work content classification unit 22 records the engine speed at time t (step S72) and moves to step S73.

  In step S73, when the time t does not indicate the work end time (step S73; No), the work time is incremented (step S74), and the processes after step S66 are performed again.

  In step S73, when the time t indicates the work end time (step S73; Yes), the processing of the flowchart shown in FIG. 9 is performed.

  In the flowchart shown in FIG. 9, the work contents at time t that are not classified by the work contents classification unit 22 are classified according to the determination in step S66, step S68, and step S70 in the flowchart shown in FIG. In general, the degree of variation over time of the engine speed varies depending on the work contents. Specifically, the engine speed tends not to vary during the “move” operation. On the other hand, the engine speed tends to vary during "rotation" work or "leveling" work, and the engine speed tends to vary more during "rotation" work than during "leveling" work. is there.

In FIG. 10, the graph which shows the change of the engine speed in each period is shown. The period is a set of time t. The engine speed corresponding to the period T1 means “stop” work because the engine speed is 0, and the period T2 is “idling” because the engine speed in the period T2 is 700 (rpm) or less. Means work. The period T5 means “transport” work because the soil amount S _t > 0. T3 and T7 mean “moving” work, T4 means “rotating” work, and T6 means “leveling” work. As shown in FIG. 10, the engine speed tends to vary in the order of “move” work, “leveling” work, and “rotation” work. At the time when the processing of the flowchart of FIG. 8 is completed, the periods T3, T4, T6, and T7 are in an unclassified state.

  Returning to the flowchart of FIG. 9, the work content classifying unit 22 sets the standard deviation of the engine speed indicating the degree of variation over time in the unclassified period as the engine rotation of the operation state information corresponding to the time t in the unclassified period. Calculation is performed using the number (step S75). Specifically, in the unclassified period, the operating state information is extracted for each predetermined number of time ranges preset in time order, the average value of the engine speed of the extracted operating state information, and the extracted operating state information The standard deviation of the engine speed is calculated using the respective engine speeds. Here, the preset time range is a range including a predetermined number of times before and after the time t. In addition, when the classified time is included in this range, the time may be excluded from the calculation of the standard deviation. Then, the work content classification unit 22 determines whether or not the standard deviation of the engine speed is equal to or smaller than the first threshold (step S76), and the standard deviation of the engine speed during the unclassified period is equal to or smaller than the first threshold. If there is (step S76; Yes), the work content at time t corresponding to the operation state information extracted when calculating the standard deviation of the engine speed is classified as “movement” (step S77).

  The work content classification unit 22 corresponds to the period when the standard deviation of the engine speed is not less than or equal to the threshold value of the first standard deviation (step S76; No), and when it is greater than or equal to the second threshold value (step S78; Yes). The work content at time t is classified as “rotation” (step S79), and when it is less than the second standard deviation threshold (step S78; No), the work content at time t corresponding to the period is classified as “leveling”. (Step S80).

(Calculation of work productivity)
Next, an example of “work productivity calculation” in step S8 in the flowchart of FIG. 2 will be described. The productivity information calculation unit 24 calculates the work productivity of the hydraulic excavator using the work object holding information and the fuel consumption information for each classified work content. The work productivity includes the following (1) to (5) depending on the comparison target.
(1) Idling time with respect to the total work time: The productivity information calculation unit 24 calculates the total work time by using the time t of the operation state information at the start of the work and the time t of the operation state information at the end of the work. Then, the work content classification unit 22 calculates the idling time by calculating the total time of the work classified as “idling”, and divides the idling time by the total work time to obtain the ratio of the idling time to the total work time. calculate. Thereby, the productivity information calculation part 24 can generate | occur | produce the information which can judge the waste at the time of work.

(2) Amount of soil transport relative to the transport work time: The productivity information calculation unit 24 calculates the transport work time by calculating the work time of the work classified by the work content classification unit 22 as “transport”, and the “ were classified as transportation ", calculates the haul soil by calculating the total soil volume S _t of workpiece holding information corresponding to the time t, by dividing the haul soil in transportation work time, Calculate the ratio of the soil transport amount to the transport work time. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the efficiency of the soil conveyance work. Here, the transport amount when calculating the work productivity of the hydraulic excavator indicates the amount of soil at the time of the work classified as “transport”. As described above, the productivity information calculation unit 24 calculates the transport amount using the information on the work amount measured by the work amount measurement process.

  (3) Transportation work time with respect to the total work time: The productivity information calculation unit 24 calculates the total work time using the time t of the operation state information at the start of work and the time t of the operation state information at the end of work. By calculating the work time of the work classified by the work content classification unit 22 as “transport”, the transport work time is calculated, and the transport work time is divided by the total work time, so that the transport work for the total work time is calculated. The percentage of time can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the work efficiency in the conveyance of soil.

(4) Soil transport amount with respect to the total work time: The productivity information calculation unit 24 uses the time t of the operation state information at the start of the work and the time t of the operation state information at the end of the work. It is calculated, to calculate the total carrying amount of soil by calculating the soil amount S _t of workpiece holding information work classification unit 22 corresponds to the work that is classified as "transportation", the haul soil By dividing by the total work time, the ratio of the amount of soil transport to the total work time can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the conveyance amount of the soil per unit time.

(5) Fuel consumption for transportation of soil: Productivity information calculation section 24, calculates the total soil volume S _t of workpiece holding information corresponding to the work which work classification unit 22 classifies the "transport" To calculate the total amount of fuel consumption in the fuel consumption information corresponding to the time t of the work classified by the work content classification unit 22 as “transport”, By dividing by the sum of the fuel consumption, the ratio of the fuel consumption to the soil transport amount can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can evaluate the fuel consumption required for conveyance of soil.

  In addition to the above (1) to (5), the fuel consumption per hour for each work content may be calculated. Specifically, the production information calculation unit 24 calculates the work time of each work classified by the work content classification unit 22, calculates the total fuel consumption of the fuel consumption information corresponding to the work, and calculates the fuel consumption. Divide the total amount by each working time. Thereby, the productivity information calculation part 24 can produce | generate the information which can evaluate the fuel consumption per hour for each work unit.

(Example of calculation of work productivity of mobile crane)
Next, a method for calculating work productivity when the work machine 10 is a mobile crane will be described. The mobile crane operates a jib using power, and uses a wire connected to the jib to wind up or down a suspended load using a hook connected to the tip of the wire. The jib and the hook are provided with a sensor that functions as the work object detection unit 11. Sensors installed in the jib include a sensor for detecting inclination and a weight sensor. The sensor that detects the tilt detects the tilt of the jib and outputs a signal related to the tilt of the jib. The weight sensor outputs a signal related to the lifting weight. The sensor provided in the hook detects the operation of the hook related to the lifted distance of the suspended load and the lowered distance of the suspended load, and outputs a sensor signal based on the detection.

  Here, the types of work contents of the mobile crane will be described. As shown in FIG. 11, the work contents of the mobile crane are as follows: “stop”, which is “the engine is stopped and the vehicle body is stopped”, and “the engine is idle, and the vehicle body is stopped”. There is a certain “idling”, “moving the jib and hook when there is no suspended load”, “moving the suspended load upward”, “carrying (up)”, and “suspended load” "Moving downward", "transportation (down)", "turning suspended load", "transportation (turning)", and "running the body with the jib fixed and moving" There is.

(Work volume measurement process)
First, detailed processing of the work amount measurement in step S2 in the flowchart of FIG. 2 will be described using the flowchart shown in FIG. The work amount of the mobile crane is the distance for winding and lowering the wire in a state where the member (suspended load) is suspended. That is, the distance that the mobile crane has moved the suspended load is the work amount.

  The detection / measurement result management unit 14 takes in a sensor signal based on the result of detection of the jib and hook operations by the work object detection unit 11 at regular time intervals (step S121). Then, the detection / measurement result management unit 14 reads the sensor signal and specifies the state S of the suspended load, which is information indicating the presence or absence of the suspended load (step S122). If the suspended load state S is 0, it indicates that there is no suspended load. If the suspended load state S is 1, it indicates that there is a suspended load. Specifically, the detection / measurement result management unit 14 takes in a signal from a weight sensor attached to the jib and determines a value (lifting weight) based on the signal from the weight sensor. If the value based on the signal from the weight sensor is equal to or less than the predetermined threshold, the detection / measurement result management unit 14 determines that there is no suspended load and sets the suspended load state S to 0. If the value based on the signal from the weight sensor is above the predetermined threshold, the detection / measurement result management unit 14 determines that there is a suspended load and sets the suspended load state S to 1. Next, the detection / measurement result management unit 14 reads the sensor signal that has detected the operation of the hook, thereby specifying the wire winding distance Su and the winding distance Sd in the suspended load state (step S123). When the detection / measurement result management unit 14 cannot identify the state S of the suspended load directly from the sensor signal that has detected the operation of the jib and the hook, or when the winding distance Su and the lowering distance Sd cannot be read, The suspended load state S, the lifting distance Su, and the lowering distance Sd corresponding to the sensor signal that has detected the operation of the jib and hook defined in the program functioning as the detection / measurement result management unit 14 are specified. May be. Then, the detection / measurement result management unit 14 holds information associating the measured time t with the information of the suspended load state S, the winding distance Su, and the lowering distance Sd at the measured time t. This is retained as information (step S124). In addition, a sensor signal related to the angle of the jib detected by the work object detection unit 11, which is a sensor attached to the jib of the mobile crane, is sent to the detection / measurement result management unit 14. Based on the angle of the jib, travel mode information M indicating whether or not the mobile crane is traveling is generated, and the travel mode M information at time t detected by the work object detection unit 11 is also used as work object holding information. Hold. When the travel mode information M is 0, it is not the travel mode, and when the travel mode information M is 1, it indicates the travel mode.

(Classification of work contents)
Detailed processing corresponding to step S3 and step S4 is the same as the processing contents of the flowcharts shown in FIGS. Next, detailed processing of “work content classification” in step S7 in the flowchart of FIG. 2 will be described using the flowcharts shown in FIGS. First, the information acquisition unit 21 reads the travel mode information, the suspended load state, the hoisting distance, the lowering distance, and the engine speed at each time from the work object holding information and the operation state information acquired from the work implement 10 (Step S1). S161). Subsequently, the work content classification server 20 reads a reference value (for example, 700 (rpm)) of the idling engine speed defined in the program or the like (step S162), and the engine speed defined in the program or the like. The information indicating the threshold value is read (step S163). Then, the work content classification unit 22 starts the work content classification from the beginning of the work time (step S164). The value of time t corresponding to the work first time is set to 1, and the value of time t corresponding to the work end time is set to n. The reference value of the engine speed for idling is a reference value for determining whether the work content is “idling”, and the threshold value for the engine speed is “transport (turning)”. This is threshold information for determining whether or not there is.

  The work content classification unit 22 determines whether or not the engine speed at time t is 0 (step S166). When the engine speed at time t is 0 (step S165; Yes), the work content classification unit 22 classifies the work content at time t as “stop” (step S166), and moves to step S172.

  When the engine speed at the time t is not 0 (step S165; No), the work content classification unit 22 determines whether or not the engine speed at the time t is equal to or less than a reference value of the idling engine speed (step). S167). If the engine speed at time t is equal to or less than the reference value of the engine speed for idling (step S167; Yes), the work content classification unit 22 classifies the work content at time t as “idling” (step S168). ), And moves to step S172.

  When the engine speed exceeds the reference value of the idling engine speed (step S167: No), the work content classification unit 22 refers to the travel mode information M and determines whether or not the travel mode is set (step S169). ). If it is the travel mode (step S169; Yes), the work content classification unit 22 classifies the work at time t as “travel” and moves to step S172.

  If it is not the travel mode (step S169; No), the work content classification unit 22 records the engine speed at time t (step S171), and moves to step S172.

  In step S172, when the time t does not indicate the work end time (step S172; No), the work time is incremented (step S173), and the processes after step S165 are performed again.

  In step S172, when the time t indicates the work end time (step S172; Yes), the processing of the flowchart shown in FIG. 14 is performed.

  In the flowchart shown in FIG. 14, the work contents at the time when the work content classifying unit 22 did not classify are classified according to the determinations in the above-described steps S165, S167, and S169.

The work content classification unit 22 calculates the standard deviation of the engine speed indicating the degree of variation over time in the unclassified period using the engine speed of the operation state information corresponding to the time t of the unclassified period ( Step S174). Specifically, in the unclassified period, the operating state information is extracted for each predetermined number of time ranges preset in time order, the average value of the engine speed of the extracted operating state information, and the extracted operating state information The standard deviation of the engine speed is calculated using the respective engine speeds. Here, the preset time range is a range including a predetermined number of times before and after the time t. In addition, when the classified time is included in this range, the time may be excluded from the calculation of the standard deviation. The work content classification unit 22 refers to the state S _t of the suspended load corresponding to the time t unclassified, suspended load is determined whether there is (step S174), the suspended load is no state (suspended load if the state _{S t} is 0) (step S175; Yes), to classify the work at the time t to "move" (step S176).

Work classification unit 22, suspended load is present (the suspended load state S _t is 1) (step S175; No), the period of unclassified, the standard deviation of the engine speed, at least the threshold engine speed It is determined whether or not there is (step S177). When the standard deviation of the engine speed in the unclassified period is equal to or greater than the threshold value of the engine speed (step S177; Yes), the work content classification unit 22 displays the work content at time t corresponding to that period as “transportation”. (Turning) "(step S178). When the standard deviation of the engine speed at the unclassified time is less than the threshold value of the engine speed (step S177; No), the work content classifying unit 22 determines that the winding distance Su _t corresponding to the unclassified time _t is it is determined whether 0 or more, when unclassified time t corresponding to the hoisting distance Su _t is 0 or more (step S179; Yes), the work at the time t "transportation (top)" Classify (step S180). Work classification unit 22, when the hoisting distance Su _t is below 0 (step S179; No), to classify the work at the time t "transport (lower)" (step S181).

(Calculation of work productivity)
Next, an example of “calculation of work productivity” in step S8 in the flowchart of FIG. 2 will be described. The productivity information calculation unit 24 calculates the work productivity of the mobile crane using the work object holding information and the fuel consumption information for each classified work content. The work productivity is as follows depending on the comparison target.

  (6) Idling time with respect to the total work time: The productivity information calculation unit 24 calculates the total work time using the time of the operation state information at the start of the work and the time of the operation state information at the end of the work, The work content classification unit 22 calculates the work time of the work classified as “idling”, and the work content classification unit 22 divides the work time of the work classified as “idling” by the total work time. Calculate the idling time percentage. Thereby, the productivity information calculation part 24 can generate | occur | produce the information which can judge the waste at the time of work.

(7) Amount of suspended load with respect to the transportation work time: The productivity information calculation unit 24 calculates the total work time of the work classified by the work content classification unit 22 as “transportation (upper)” and “transportation (lower)”. calculating the transport work time by calculating calculates the sum of the "transportation (top)" and "transport (lower)" hoisting distance workpiece holding information classified as Su _t and lowering distance Sd _t that The amount of the suspended load is calculated by dividing the amount of the suspended load by the transportation work time, thereby calculating the ratio of the amount of the suspended load to the transportation work time. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the efficiency of a conveyance work. Here, when the work productivity of the mobile crane is calculated, the transport amount indicates the distance to which the suspended load is moved during the work classified as “transport (upper)” and “transport (lower)”.

  (8) Transportation work time with respect to the total work time: The productivity information calculation unit 24 calculates the total work time using the time of the operation state information at the start of the work and the time of the operation state information at the end of the work. The work content classification unit 22 calculates the transport work time by calculating the total work time of the work classified as “transport (up)”, “transport (bottom)”, and “transport (turn)”. By dividing the time by the total work time, the ratio of the transport work time to the total work time can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the work efficiency in conveyance of a suspended load.

(9) Amount of suspended load for the entire work time: The productivity information calculation unit 24 uses the start time of the operation state information at the start of the work and the start time of the operation state information at the end of the work. calculating the time, the sum of the hoisting distance Su _t and lowering distance Sd _t of workpiece holding information corresponding to the work which work classification unit 22 classifies the "transportation (top)" and "transport (below)" By calculating, it is possible to calculate the carrying amount of the hanging load, and dividing the carrying amount of the hanging load by the total work time, thereby calculating the ratio of the carrying amount of the hanging load to the total work time. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the conveyance amount of the hanging load per unit time.

(10) Fuel consumption relative to the amount of suspended load transported: The productivity information calculation unit 24 is a work object corresponding to the work classified by the work content classification unit 22 as “transport (upper)” and “transport (lower)”. hanging calculates the haul cargo by calculating the sum of the hoisting distance Su _t and lowering distance Sd _t held information, work content classification unit 22 is "transportation (top)" and classified as "transportation (bottom)" The fuel consumption is calculated by calculating the sum of the fuel consumption of the fuel consumption information corresponding to the time t of the work performed, and the fuel consumption is divided by the transportation amount of the suspended load. The ratio of the fuel consumption with respect to can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can evaluate the fuel consumption required for conveyance of a suspended load.

  In addition to the above (6) to (10), the fuel consumption per hour for each work content may be calculated. Specifically, the production information calculation unit 24 calculates the work time of each work classified by the work content classification unit 22, calculates the total fuel consumption of the fuel consumption information corresponding to the work, and calculates the fuel consumption. Divide the total amount by each working time. Thereby, the productivity information calculation part 24 can produce | generate the information which can evaluate the fuel consumption per hour for each work unit.

  As described above, in the present embodiment, in the work content classification system 1, the information acquisition unit 21 has the operation state information including the information on the engine speed of the work machine 10 in a predetermined time unit, and the work machine 10 is the work object. Work object holding information including at least information that can be used to determine whether or not the object is held, and classifying the work contents at each time based on the information on the engine speed and the work object holding information . Since the work content classification system 1 determines work using not only information on the engine speed of the work machine 10 but also information that can be used to determine whether the work machine 10 holds a work object. For example, the work contents can be classified more finely, such as classification of transportation and movement.

As described above, since the work content classification system 1 classifies the work content more finely, it is possible to calculate the fuel consumption for each work classification based on the classified content. Information that can grasp the problem can be provided. By comparing the information provided by the work content classification system 1 with the standard work productivity information, the user can grasp the problem of the current work, and the problem. By improving the work based on the above, it is possible to improve the productivity at the construction site and to improve the work that can reduce CO ₂ emission due to saving of light oil used.

  The work content classification system 1 classifies work using information on the engine speed of the work machine 10 and information that can determine whether the work machine 10 holds a work object. Since the work is classified without considering the procedure to perform the work, even if the work conditions differ depending on the site and process, the work contents can be classified accurately, and measurement according to all the work conditions can be performed. Compared with the case where it carries out, work content classification work can be saved.

  Further, the work content classification system 1 further classifies the work content by further using the threshold information of the engine speed of the work machine 10. In this case, it is possible to classify the work contents by comparing the threshold information of the engine speed and the engine speed, and the work contents are classified according to the tendency of the engine speed in each work. For example, the idling work can be classified based on the threshold value of the engine speed of the idling operation, and the work content can be classified more finely.

  Also, the work content classification system 1 acquires time-series engine speed information and time-series work object holding information, and information on the time-series engine speed and time-series work object. The work contents are classified using the retained information. In this case, for example, the work content can be classified based on a change in the engine speed during a predetermined period.

  Further, the work content classification system 1 classifies the work content based on the degree of variation in the engine speed. In this case, the work content classification system 1 can classify the work content based on the tendency of the degree of variation in the engine speed. For example, the “moving” work in which the engine speed does not vary and the engine speed varies. Can be classified as “rotating” work.

  In the work content classification system 1, the information acquisition unit 21 acquires fuel consumption information, and the productivity information calculation unit 24 sets the fuel consumption corresponding to the time of each work content for each classified work content. Based on the productivity information, the productivity information output unit 25 outputs the productivity information. In this case, since the work content classification system 1 calculates productivity information for each work content, information useful for work improvement of the work machine 10 can be calculated.

  In the work content classification system 1, the drive source operation state detection unit 12 detects the engine speed of the work machine 10, and the work object detection unit 11 of the work machine 10 holds the work object. The detection measurement result management unit 14 generates the operation state information based on the detection result by the drive source operation state detection unit 12, and the work target based on the detection result by the work object detection unit 11. The object holding information is generated, and the information acquisition unit 21 acquires the operation state information and the work object holding information from the detection measurement result management unit 14. In this case, the work content classification system 1 detects the operating state of the drive source of the work machine 10, detects whether the work machine 10 holds a work object, and based on each detection result, The work classification of the work machine 10 can be performed.

  In the above-described embodiment, the case where the drive source operation state detection unit 12 detects the engine speed is described. However, the present invention is not limited to this, and when the motor is used as the drive source, the motor speed is set. You may make it measure. In this case, the motor speed is an amount by which the electric motor of the heavy machine rotates in one minute, and the measurement can be realized by using, for example, a sensor so as to detect the engine speed.

  In the above embodiment, the case where the fuel consumption measuring unit 13 measures the fuel consumption of the work implement 10 has been described. However, the present invention is not limited to this, and the power consumption of the work implement 10 is measured. May be. In this case, power consumption is measured using a power meter.

  In the above-described embodiment, the case where the detection / measurement result output unit 14 transmits information to the work content classification server 20 via the network and the information acquisition unit 21 of the work content classification server 20 acquires information has been described. The present invention is not limited to this, and the information acquisition unit 21 may acquire information via the storage medium via the storage medium storing the information generated by the detection / measurement result output unit 14. .

  In the above-described embodiment, the case where the sensor provided in the drive source is used as the means for detecting the operation state of the drive source has been described. However, the present invention is not limited to this, and output information of an ECU (Engine Control Unit). You may make it detect the operation state of a drive source by (output interface of a control system).

  In the above-described embodiment, the fuel consumption measuring unit 13 measures the fuel consumption by calculating the fuel consumption based on the correlation between the predetermined fuel consumption and the engine speed. However, the present invention is not limited to this, and a fuel gauge may be used as the fuel consumption measuring unit 13.

  In the above-described embodiment, the case where the work amount is the amount of excavated soil in the hydraulic excavator and the hoisting distance in the mobile crane that lifts the suspended load has been described. The information indicating whether or not the work is performed may be used as the work amount.

  In the above-described embodiment, the case where the transport amount of the mobile crane is the sum of the hoisting distance and the lowering distance has been described. However, the present invention is not limited to this, and the mobile crane is in a state where there is a suspended load. The turning distance (hereinafter referred to as “turning distance”) may be further included in the transport amount.

  When calculating the turning distance, the value of the average rotation speed during turning is defined in advance by a program held by the CPU of the work content classification server 20, and the productivity information calculation unit 24 performs “transportation (turning)”. The turning distance can be calculated by multiplying the sum of the times classified by the above and the value of the average rotation speed. And when calculating work productivity including the said turning distance as a conveyance amount, the productivity information calculation part 24 uses the productivity calculation method as described in said (7), (9), and (10). The calculation is performed as described in the following (11), (12), and (13), respectively.

(11) Amount of suspended load with respect to the conveyance work time (when the turning distance is included in the conveyance amount): The productivity information calculation unit 24 indicates that the operation content classification unit 22 is “conveyance (upper)”, “transportation (lower)” ”And“ transport (turning) ”to calculate the total work time of the work, calculate the transport work time, hold the work object classified as“ transport (up) ”and“ transport (bottom) ” sum of hoisting distance Su _t and lowering distance Sd _t information, hanging by productivity information calculation unit 24 calculates the sum of the turning distance calculated to calculate the haul cargo, the transport amount of suspended load By dividing by the transportation work time, the ratio of the transport amount of the suspended load to the transportation work time is calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the efficiency of a conveyance work.

(12) Carrying amount of suspended load with respect to the total work time (when turning distance is included in the carry amount): The productivity information calculation unit 24 starts the operation state information at the start of the operation and the operation state at the end of the operation. The total work time is calculated using the start time of information, and the work object holding information winding distance corresponding to the work classified by the work content classification unit 22 as “transport (up)” and “transport (down)” sum of su _t and lowering distance Sd _t, hanging by productivity information calculation unit 24 calculates the sum of the turning distance calculated to calculate the haul cargo, the haul suspended load in all working time By dividing, it is possible to calculate the ratio of the amount of suspended loads to the total work time. Thereby, the productivity information calculation part 24 can produce | generate the information which can judge the conveyance amount of the hanging load per unit time.

(13) Fuel consumption with respect to the carrying amount of the suspended load (when the turning distance is included in the carrying amount): The productivity information calculation unit 24 is configured such that the work content classification unit 22 is “carrying (upper)” and “carrying (lower)”. sum of hoisting distance Su _t and lowering distance Sd _t of workpiece holding information corresponding to the work which is classified as "productive information calculation section 24 of the suspended load by calculating the sum of the turning distance calculated The fuel consumption of the fuel consumption information corresponding to the time t of the work calculated by the work content classification unit 22 as “transport (up)”, “transport (lower)”, and “transport (turn)” is calculated. By calculating the fuel consumption amount by calculating the total amount, and dividing the fuel consumption amount by the transport amount of the suspended load, the ratio of the fuel consumption amount to the transport amount of the suspended load can be calculated. Thereby, the productivity information calculation part 24 can produce | generate the information which can evaluate the fuel consumption required for conveyance of a suspended load.

  In the above-described embodiment, the case where the state S of the suspended load is specified based on the signal of the weight sensor attached to the jib of the mobile crane has been described, but the present invention is not limited to this, and the detection measurement result management unit 14 may specify the lifting weight from the signal from the weight sensor, and the specified lifting weight may be used when classifying the work content or calculating the work productivity. In this case, the detection / measurement result management unit 14 needs to include the value of the lifting weight in the work object holding information.

  In the above-described embodiment, the case where the state S of the suspended load is specified based on the signal of the weight sensor attached to the jib of the mobile crane has been described. However, the present invention is not limited to this, and the hook of the mobile crane is used. The sensor is provided in the part, and the detection / measurement result management unit 14 reads a signal that can be determined whether there is a load on the hook part output from the sensor, and determines the state S of the suspended load based on the read signal. You may make it judge. As a method for the detection / measurement result management unit 14 to determine the suspended load state S based on the signal output from the sensor, the method for determining the suspended load state S from information directly read from the signal output from the sensor, Alternatively, there is a method for determining the suspended load state S by referring to the suspended load state S corresponding to the signal output from the sensor, which is defined in the program functioning as the detection / measurement result management unit 14. .

  DESCRIPTION OF SYMBOLS 1 ... Work content classification system, 10 ... Work machine, 11 ... Work object detection part, 12 ... Drive source operation state detection part, 13 ... Fuel measurement part, 14 ... Detection and measurement result output part, 20 ... Work content classification server 21 ... Information acquisition unit, 22 ... Work content classification unit, 23 ... Classification result output unit, 24 ... Productivity information calculation unit, 25 ... Productivity information output unit.

Claims (7)

A work content classification system for classifying a plurality of work contents including work on a work object by a work machine equipped with a drive source,
Information acquisition means for acquiring operation state information that is information on an operation state of the drive source in predetermined time units, and work object holding information including at least information indicating a holding amount of the work object in the work implement ;
Work content classification means for classifying the work content of each time using the operation state information of the drive source and the work object holding information;
A work content classification system comprising: classification result output means for outputting a result of classification by the work content classification means.   2. The work content classification system according to claim 1, wherein the work content classification unit classifies the work content of each time by further using threshold information related to operation state information of the drive source. The information acquisition means acquires the operation state information of the driving source in time series and the work object holding information in time series,
3. The work content classification means classifies the work content based on a time series of the operation state information of the time series drive source and the time series work object holding information. Work content classification system described in 1.   The work content classification system according to claim 3, wherein the work content classification unit classifies the work content based on a temporal variation degree of the operation state of the drive source. The information acquisition means acquires fuel consumption information in a predetermined time unit,
Productivity information calculating means for calculating productivity information based on fuel consumption information corresponding to the time of each work content for each work content classified by the work content classification means;
Productivity information output means for outputting the productivity information calculated by the productivity information calculation means;
5. The work content classification system according to claim 1, further comprising: Drive source operation state detection means for detecting an operation state of the drive source;
Work object detection means for detecting whether or not the work implement holds the work object;
Detection result management means for generating operation state information based on the detection result by the drive source operation state detection means, and generating work object holding information based on the detection result by the work object detection means,
The work content classification system according to claim 1, wherein the information acquisition unit acquires the operation state information and work object holding information from the detection result management unit. A work content classification method for classifying a plurality of work contents including work on a work object by a work machine equipped with a drive source, which is executed by a work content classification system,
An information acquisition step for acquiring operation state information that is information on an operation state of the drive source in predetermined time units and work object holding information including at least information indicating a holding amount of the work object in the work implement ;
A work content classification step for classifying the work content of each time based on the operation state information of the drive source and the work object holding information;
A work content classification method comprising: a classification result output step of outputting a classification result obtained by the work content classification step.

Images