Work machine work analysis system and work machine work analysis method

Abstract

To grasp work contents performed by a work machine.SOLUTION: A work analysis system 100 comprises: operation detection units 11, 12, and 14 capable of detecting operation directions of operating levers LA and LB for operating a work machine 1; a pattern memory unit 22 in which standard operation patterns of the operating levers LA and LB corresponding to work contents performed by the work machine 1 are stored; and a work determination unit 23 which compares actual operation patterns of the operating levers LA and LB, determined from the operation directions detected by the operation detection units 11, 12, and 14, with the standard operation patterns stored in the pattern memory unit 22, and determines the work contents performed by the work machine 1.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a work analysis system for a working machine and a work analysis method for a working machine.

Background Art

[0002] Patent Document 1 discloses a process management system for a working machine that automatically determines the start and end of the work of the working machine.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the invention described in Patent Document 1, although it is possible to determine the start and end of the work by the working machine by measuring the sound generated by the working machine during work or by providing sensors to the electric motor or hydraulic equipment of the working machine, it is not possible to specify exactly what kind of work is being performed by the working machine. For this reason, since it is not possible to grasp what kind of work was carried out at what frequency within the working time during which the working machine was operating, for example, it is not possible to give guidance to the operator who operates the working machine on improving the work procedure, and as a result, there is a risk that the efficiency of the work by the working machine cannot be improved.

[0005] An object of the present invention is to enable the work content performed by a working machine to be grasped.

Means for Solving the Problems

[0006] The present invention relates to a work analysis system for a work machine that analyzes the work content performed by the work machine, and includes an operation detection unit capable of detecting the operation direction of an operation lever for operating the work machine, a pattern storage unit that stores a standard operation pattern of the operation lever corresponding to the work content performed by the work machine, and a work determination unit that compares the actually measured operation pattern of the operation lever obtained from the operation direction detected by the operation detection unit with the standard operation pattern stored in the pattern storage unit to determine the work content performed by the work machine.

[0007] Further, the present invention relates to a work analysis method for a work machine that analyzes the work content performed by the work machine, and includes an operation direction acquisition step of acquiring the operation direction detected by an operation detection unit capable of detecting the operation direction of an operation lever for operating the work machine, and a work content determination step of comparing the standard operation pattern stored in a pattern storage unit that stores the standard operation pattern of the operation lever corresponding to the work content performed by the work machine with the actually measured operation pattern of the operation lever obtained from the operation direction detected by the operation detection unit to determine the work content performed by the work machine.

Effects of the Invention

[0008] According to the present invention, it is possible to grasp the work content performed by the work machine.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0010] Hereinafter, with reference to the drawings, a work analysis system for a work machine and a work analysis method for a work machine according to an embodiment of the present invention will be described.

[0011] First, with reference to FIGS. 1 to 3, the work analysis system 100 of the work machine according to the embodiment of the present invention will be described. FIG. 1 is a schematic diagram of an excavator 1 (work machine) whose work content is analyzed by the work analysis system 100, FIG. 2 is a schematic diagram showing the inside of the driver's cab 3 of the excavator 1 where the operation levers LA and LB are arranged, and FIG. 3 is a block diagram of the work analysis system 100.

[0012] The work analysis system 100 of the work machine is a system for grasping the work content performed by the work machine operated by the operator via the operation lever, and mainly analyzes the work content performed by the work machine based on the operation history of the operation lever. Hereinafter, the case where the work machine whose work content is analyzed by the work analysis system 100 is the excavator 1 as shown in FIG. 1 will be described.

[0013] Note that the work machine whose work content is analyzed by the work analysis system 100 is not limited to the excavator 1, and any work machine may be used as long as it is a work machine of a type operated by the operator via the operation lever. For example, a wheel loader, a bulldozer, a crane, a drill jumbo, a concrete spraying machine, etc. may be used.

[0014] The backhoe 1 shown in Fig. 1 includes a main body 2 provided with a cab 3 and crawlers 4, a boom 5 extending from the main body 2, an arm 6 attached to the tip of the boom 5, and a bucket 7 attached to the tip of the arm 6.

[0015] As shown in Fig. 2, the operations of the boom 5, the arm 6, and the bucket 7 and the slewing operation of the main body 2 are performed by the operator via two operation levers LA and LB (first operation lever LA and second operation lever LB) arranged in the cab 3 so as to sandwich the seat 3a on which the operator sits.

[0016] Specifically, as will be described later, the boom 5 is operated by operating the first operation lever LA in the first direction A1 and the second direction A2, the bucket 7 is operated by operating the first operation lever LA in the third direction A3 and the fourth direction A4, the arm 6 is operated by operating the second operation lever LB in the first direction B1 and the second direction B2, and the slewing of the main body 2 is operated by operating the second operation lever LB in the third direction B3 and the fourth direction B4. Note that the correspondence between the operation directions of the operation levers LA and LB and each working part such as the boom 5 is an example and may vary depending on the manufacturer of the working machine, etc., and is not limited thereto.

[0017] The work analysis system 100 includes, as shown in Fig. 3, a data collection unit 10 that collects data related to the operations of the operation levers LA and LB and the like, and a work analysis unit 20 that analyzes the work content based on the data collected by the data collection unit 10, in order to analyze the work content performed by the backhoe 1 (working machine) having the above configuration.

[0018] The data collection unit 10 includes a first tilt sensor 11 (operation lever tilt detector, operation detector) capable of detecting the tilt of the first operation lever LA, a second tilt sensor 12 (operation lever tilt detector, operation detector) capable of detecting the tilt of the second operation lever LB, and a third tilt sensor 14 (work machine tilt detector, operation detector) capable of detecting the tilt of the cab 3 in which the operation levers LA and LB are arranged, in order to collect operation data regarding the operation directions of the operation levers LA and LB operated by the operator. The data collection unit 10 also includes a data collection control unit 15 that collects the data detected by these tilt sensors 11, 12, and 14 and transmits the data to the work analysis unit 20 through the transmission and reception unit 18.

[0019] The data collection control unit 15 is composed of a microcomputer equipped with a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an I / O interface (input / output interface), and is installed inside the cab 3. The RAM stores data in the processing of the CPU, the ROM stores in advance the control program of the CPU, etc., and the I / O interface is used for input / output of information with detectors such as the first tilt sensor 11 connected to the data collection control unit 15 and various devices.

[0020] The first tilt sensor 11 is an angle sensor attached to a shaft portion (not shown) of the first operation lever LA, and outputs the angle of the shaft portion with respect to the initial state (neutral state).

[0021] The second tilt sensor 12 is an angle sensor similar to the first tilt sensor 11, is attached to a shaft portion (not shown) of the second operation lever LB, and outputs the angle of the shaft portion with respect to the initial state (neutral state).

[0022] When the backhoe 1 (work machine) works on a sloping ground, the first tilt sensor 11 and the second tilt sensor 12 also detect the tilt angle of the work site. Therefore, a third tilt sensor 14 is provided to correct such a tilt of the work site.

[0023] The third tilt sensor 14 is an angle sensor similar to the first tilt sensor 11 and the second tilt sensor 12, and outputs the tilt angle of the cab 3 where each operation lever LA, LB is arranged with respect to the horizontal plane.

[0024] That is, the difference between the detection value of the first tilt sensor 11 and the detection value of the third tilt sensor 14 indicates the actual tilt state of the first operation lever LA, that is, the operation direction of the first operation lever LA operated by the operator, and the difference between the detection value of the second tilt sensor 12 and the detection value of the third tilt sensor 14 indicates the actual tilt state of the second operation lever LB, that is, the operation direction of the second operation lever LB operated by the operator.

[0025] In this way, the tilt sensors 11, 12, 14 function as an operation detection unit capable of detecting the operation directions of the respective operation levers LA, LB for operating the backhoe 1 (working machine). Note that the operation detection unit is not limited to the tilt sensors 11, 12, 14, and any sensor or the like may be used as long as it can detect the operation directions of the respective operation levers LA, LB. For example, an acceleration sensor that detects the operation acceleration of the operation lever, a displacement sensor that detects the displacement amount of the operation lever, or a proximity sensor that detects the approach of the operation lever may be used.

[0026] Further, the data collection unit 10 has an imaging unit 16 capable of imaging the actual working situation performed by the backhoe 1 (working machine) when each operation lever LA, LB is operated.

[0027] The imaging unit 16 is, for example, a stereo digital camera, and is attached in a state where it can image the front (see FIG. 1) above the cab 3 so as to face the direction in which the work is performed by the backhoe 1 (working machine). The image data captured by the imaging unit 16 is collected by the data collection control unit 15 in the same manner as the data detected by the tilt sensors 11, 12, 14, and then transmitted to the work analysis unit 20 through the transmission / reception unit 18.

[0028] The transmission / reception unit 18 is a short-range wireless communication device such as Wi-Fi (registered trademark) or Bluetooth (registered trademark), or a general wireless communication device capable of transmitting and receiving data via an Internet line. As described above, it transmits various data collected by the data collection control unit 15 to the work analysis unit 20 and receives a data transmission request transmitted from the work analysis unit 20. Note that the transfer of data may be performed via a storage medium such as a USB flash drive, an SD card, or a microSD card.

[0029] Note that the data detected by the tilt sensors 11, 12, and 14 collected by the data collection unit 10 and the image data captured by the imaging unit 16 may be transmitted from the data collection unit 10 to the work analysis unit 20 at any time, may be transmitted at preset regular intervals, or may be transmitted when the work by the backhoe 1 (working machine) is completed and the key switch is turned off.

[0030] The work analysis unit 20 includes an analysis unit 21 that analyzes the data received from the work analysis unit 20 through the transmission / reception unit 26, and a display unit 25 that displays the results analyzed by the analysis unit 21.

[0031] The analysis unit 21 is composed of a microcomputer equipped with a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an I / O interface (Input / Output interface). For example, it is installed in a monitoring room that monitors the work of multiple working machines. The RAM stores data in the processing of the CPU, the ROM stores in advance the control program of the CPU, etc., and the I / O interface is used for input / output of information with devices such as the display unit 25 and the transmission / reception unit 26 connected to the analysis unit 21. Note that the display unit 25 is a general monitor device, and the transmission / reception unit 26 is a wireless communication device similar to the above-mentioned transmission / reception unit 18.

[0032] The analysis unit 21 includes a pattern storage unit 22 that stores the standard operation patterns of the operation levers LA and LB according to the work content performed by the backhoe 1 (working machine), and a work determination unit 23 that determines the work content performed by the backhoe 1 (working machine) based on the result detected by the operation detection unit such as the first inclination sensor 11 and the standard operation pattern stored in the pattern storage unit 22.

[0033] Note that the pattern storage unit 22, the work determination unit 23, and the pattern addition unit 24 described later are shown as a part of the functions of a general personal computer used as the analysis unit 21 as virtual units, and do not mean physically existing. Further, the pattern storage unit 22, the work determination unit 23, and the pattern addition unit 24 do not necessarily need to be provided within one analysis unit 21, that is, within one personal computer, and may be provided in different servers, for example, and configured to transmit and receive data to and from each other by wire or wirelessly.

[0034] As shown in FIG. 4, the pattern storage unit 22 stores in advance the standard operation patterns of the operation levers LA and LB according to the work content performed by the backhoe 1 (working machine).

[0035] Specifically, for example, when the first work (excavation) is performed, typically, the first operation lever LA is operated in the first direction A1, and after the second operation lever LB is operated in the first direction B1, the first operation lever LA is operated in the second direction A2, and the second operation lever LB is operated toward the second direction B2 and the fourth direction B4, thereby operating the boom 5, the arm 6, and the bucket 7.

[0036] Also, when the second work (loading) is performed, typically, the first operation lever LA is operated in the second direction A2, and after the second operation lever LB is operated in the second direction B2, the first operation lever LA is operated in the first direction A1, and the second operation lever LB is operated toward the first direction B1 and the third direction B3, thereby operating the boom 5, the arm 6, and the bucket 7.

[0037] Also, when the third operation (spreading) is performed, typically, after the second operation lever LB is operated in the first direction B1, the first operation lever LA is operated in the third direction A3, and then, after the second operation lever LB is operated in the second direction B2, the first operation lever LA is operated in the fourth direction A4, so that the operation of the boom 5 and the turning operation of the main body 2 are controlled.

[0038] Also, when the fourth operation (rolling) is performed, typically, after the second operation lever LB is operated in the second direction B2, the first operation lever LA is operated in the first direction A1, and the second operation lever LB is operated in the fourth direction B4. Then, after the second operation lever LB is operated in the first direction B1, the first operation lever LA is operated in the second direction A2, and the second operation lever LB is operated in the third direction B3, so that the operations of the boom 5, the arm 6, and the bucket 7 are controlled.

[0039] Note that the work content stored in the pattern storage unit 22 is not limited to the above work (the first to fourth operations). As long as it is work that can be performed by the backhoe 1 (working machine), any work content may be stored together with the standard operation pattern. For example, the work of shaping a slope may be stored together with the standard operation pattern.

[0040] The work determination unit 23 compares the measured operation pattern of the operation levers LA and LB obtained from the results detected by the operation detection unit such as the first inclination sensor 11 with the standard operation pattern stored in the pattern storage unit 22, and determines in chronological order what kind of work has been performed by the backhoe 1 (working machine).

[0041] Specifically, for example, within the data received from the work analysis unit 20, when it is confirmed that a series of operation patterns occur, where the first operation lever LA is operated in the second direction A2, the second operation lever LB is operated in the second direction B2, then the first operation lever LA is operated in the first direction A1, and the second operation lever LB is operated in the first direction B1 and the third direction B3. If this measured operation pattern matches the standard operation pattern of the second operation (loading) stored in the pattern storage unit 22, the work determination unit 23 determines that the backhoe 1 (working machine) was performing the second operation (loading) during the period when this measured operation pattern was detected by the operation detection unit such as the first tilt sensor 11.

[0042] On the other hand, when the operation pattern that matches the measured operation pattern is not among the standard operation patterns stored in the pattern storage unit 22, the work determination unit 23 determines that during the period when this measured operation pattern was detected by the operation detection unit such as the first tilt sensor 11, the backhoe 1 (working machine) was performing other operations not corresponding to the above work.

[0043] If only the time when the measured operation pattern matches the standard operation pattern is extracted as the time when the work content corresponding to the standard operation pattern is performed, for example, even if the third operation (leveling) was actually performed for 5 minutes, if the total time when the measured operation pattern matches the standard operation pattern of the third operation is 1 minute out of these 5 minutes, it will be determined that during the remaining 4 minutes, other work was being done or no work was being done. As a result, a large deviation may occur between the actual work content and the determined work content, and there is a risk that the determination accuracy of the work content will decrease.

[0044] Therefore, when determining the work content in the work determination unit 23, the working time is divided at an arbitrary time interval (for example, 1 minute). If the measured operation pattern determined as the third work (leveling) is included within this time interval, it is preferably determined that the third work has been continuously performed during the time interval (1 minute). Note that the time interval is not limited to 1 minute and may be any arbitrary time interval such as 3 minutes or 5 minutes.

[0045] Also, if the measured operation pattern determined as a plurality of work contents is included within one time interval, for example, if the measured operation pattern corresponding to the first work (excavation) and the measured operation pattern corresponding to the second work (loading) are included, it may be considered that the first work (excavation) has been continuously performed during half of the time interval, and the second work (loading) has been continuously performed during half of the time interval. Further, if the measured operation pattern determined as a predetermined work content is included across two consecutive time intervals, it may be considered that the predetermined work content has been continuously performed between the two consecutive time intervals.

[0046] By setting the time for determining the work content by the work determination unit 23 in this way by dividing it at an arbitrary time interval, it is possible to improve the determination accuracy of the work content.

[0047] In addition, the work determination unit 23 calculates the frequency (ratio) executed within a predetermined working time for each determined work content. For example, within the working time of one day, it is calculated how often (at what ratio) the first work (excavation) has been performed, and what ratio of the time when no work has been performed, that is, the time when the backhoe 1 (working machine) has not been operated. Note that the working time used as a reference when calculating the frequency (ratio) is not limited to one day and can be set to any arbitrary time, and may be in units such as morning, afternoon, one week, or one month.

[0048] The result calculated by the operation determination unit 23 in this way is displayed on the display unit 25 by means of a graph or the like. As a result, it becomes possible to grasp what kind of work was carried out with what frequency during the working hours when the backhoe 1 (working machine) was operating. Therefore, for example, it becomes possible to instruct an operator who operates the backhoe 1 (working machine) to improve the work procedure, etc. As a result, the efficiency of the work by the backhoe 1 (working machine) can be improved.

[0049] On the other hand, depending on the operator, due to habits during operation, etc., there may be a case where the operation levers LA and LB are operated by an operation pattern slightly different from the standard operation pattern pre-stored in the pattern storage unit 22 to execute the above-described work content. In such a case, the work content actually performed by the working machine cannot be determined by the work determination unit 23, and the ratio of being determined that other work was being performed increases, making it difficult to accurately grasp the work content performed by the working machine.

[0050] Therefore, the analysis unit 21 further has a pattern addition unit 24 that adds standard operation patterns as needed.

[0051] The pattern addition unit 24 determines the work content actually performed by the backhoe 1 (working machine) from the image data captured by the imaging unit 16, and adds the actually measured operation pattern of the operation levers LA and LB obtained from the operation direction detected by the operation detection unit such as the first inclination sensor 11 when the determined work content is carried out, as the standard operation pattern corresponding to the determined work content.

[0052] Specifically, for example, when it is clearly determined from the image data captured by the imaging unit 16 that the second work (loading) is being carried out, when the actually measured operation pattern detected by the operation detection unit such as the first inclination sensor 11 does not match the standard operation pattern of the second work (loading) stored in the pattern storage unit 22 while the second work (loading) is being carried out, the detected actually measured operation pattern is added as a new standard operation pattern and stored in the pattern storage unit 22.

[0053] In addition, when the measured operation pattern of a specific operator does not match the standard operation pattern stored in the pattern storage unit 22, a new standard operation pattern may be added only to the pattern storage unit 22 used when determining the work content of the work machine operated by the specific operator. That is, the pattern storage unit 22 may be associated with each operator.

[0054] Also, regarding which work content the work content performed by the backhoe 1 corresponds to, for example, it is preferable to automatically determine it based on the learning result of machine learning using the image data captured by the imaging unit 16. However, when it is difficult to clearly determine the work content, it may be determined manually as an auxiliary.

[0055] When determining the work content performed by the backhoe 1 (work machine) from the image data captured by the imaging unit 16 using the learning result of machine learning, the pattern addition unit 24 stores the learning result of machine learning for the work content by using the image data captured in advance for a predetermined work content performed by the backhoe 1 (work machine) as teacher data.

[0056] Specifically, in order to use the image data captured when the above-described first to fourth operations are actually performed by the backhoe 1 as teacher data, a large amount of it is acquired, and in each operation, learning for extracting the characteristics of the operations of the boom 5, the arm 6, and the bucket 7 is performed by a known machine learning method.

[0057] As a machine learning method, for example, a type of segmentation using deep learning, a semantic segmentation method is used to identify the type of object displayed in each pixel and detect the pixel region where the object to be identified exists. From the image data, in order to be able to identify mainly the boom 5, the arm 6, and the bucket 7 as the types of objects, the pixel region where the boom 5 exists, the pixel region where the arm 6 exists, and the pixel region where the bucket 7 exists are detected, and learning is performed to detect the moving directions of these pixel regions.

[0058] The machine learning method is not limited to semantic segmentation, and any method can be used as long as it enables the identification of the type of object and region classification in the image data. For example, other known methods using deep learning such as instance segmentation and panoptic segmentation may be used.

[0059] By storing in the pattern addition unit 24 in advance the learning result of the machine learning performed using the image data captured when the work is actually carried out as the teacher data, it becomes possible to automatically determine the work content performed by the backhoe 1 from the image data captured by the imaging unit 16. However, it is difficult to sufficiently improve the determination accuracy of the work content performed using the learning result of the machine learning, and there may be cases where misjudgment is included. Therefore, it is preferable to make the determination as to whether to add the actual measurement operation pattern as a new standard operation pattern by a person.

[0060] Next, the work analysis method performed by the work analysis system 100 having the above configuration will be described with reference to the flowchart of FIG. 5, the work breakdown graph shown in FIG. 6, and the pie chart shown in FIG. 7.

[0061] First, in step S11, acquisition of the operation direction detected by an operation detection unit (the first inclination sensor 11, the second inclination sensor 12, and the third inclination sensor 14), which can detect the operation direction of the operation levers (the first operation lever LA and the second operation lever LB) for operating the backhoe 1 (working machine), by the data collection unit 10 is started (operation direction acquisition step).

[0062] In addition, the data collection unit 10 acquires image data of the working state of the backhoe 1 captured by the imaging unit 16 in accordance with the acquisition of the operation direction detected by the operation detection unit (the first inclination sensor 11, the second inclination sensor 12, and the third inclination sensor 14).

[0063] The data collection unit 10 is activated when the key switch of the backhoe 1 (working machine) is turned on, starts collecting the data detected by the respective inclination sensors 11, 12, 14, and starts collecting the image data captured by the imaging unit 16. The data collection by the data collection unit 10 continues until the key switch of the backhoe 1 is turned off.

[0064] In the subsequent step S12, the data collected by the data collection unit 10 is transmitted from the data collection unit 10 to the work analysis unit 20. The data transmitted from the data collection unit 10 to the work analysis unit 20 includes, in addition to the data detected by the respective inclination sensors 11, 12, 14 and the image data captured by the imaging unit 16, data regarding the model of the backhoe 1 (working machine) and the ID of the operator.

[0065] The transmission of data from the data collection unit 10 to the work analysis unit 20 is performed when the data collection by the data collection unit 10 is completed, for example, after the key switch of the backhoe 1 is turned off. The timing at which the data is transmitted from the data collection unit 10 to the work analysis unit 20 is not limited to this, and it may be transmitted every preset predetermined time (for example, one hour), or may be transmitted when a transmission request is received from the work analysis unit 20.

[0066] When the data collected by the data collection unit 10 is transmitted to the work analysis unit 20, the process proceeds to step S13, and the work content is determined by the work analysis unit 20 (work content determination process).

[0067] In the work analysis unit 20, as described above, the actual measurement operation pattern of the operation levers LA and LB obtained from the results detected by the operation detection unit such as the first tilt sensor 11 by the work determination unit 23 is compared with the standard operation pattern stored in the pattern storage unit 22, and it is determined in chronological order what kind of work is being done by the backhoe 1 (working machine). Note that the standard operation pattern stored in the pattern storage unit 22 used for the determination may be read according to the operator's ID.

[0068] When the work performed by the backhoe 1 is thus determined by the work determination unit 23, a graph showing the breakdown of the work in chronological order as shown in FIG. 6 is created. Specifically, in FIG. 6, the data detected by the operation detection unit such as the first tilt sensor 11 includes an actual measurement operation pattern that matches the standard operation pattern of the first work and an actual measurement operation pattern that matches the standard operation pattern of the second work, which appear alternately, and then an actual measurement operation pattern that does not match any of the standard operation patterns appears. Further, an example is shown in which an actual measurement operation pattern that matches the standard operation pattern of the third work and an actual measurement operation pattern that matches the standard operation pattern of the fourth work appear.

[0069] Also, when the work content within the preset work time is determined by the work determination unit 23, a pie chart showing how often (percentage) each work was performed within a predetermined work time (e.g., one day) as shown in FIG. 7 is created. Thereby, it is possible to grasp what kind of work was performed at what frequency during the work time when the backhoe 1 (working machine) was operating.

[0070] In the subsequent step S14, the determination result of the work content performed in step S13 is displayed on the display unit 25.

[0071] In the display unit 25, as the determination result of the work content performed in step S13, a graph showing the breakdown of the work in chronological order as shown in FIG. 6, or a pie chart showing how frequently (percentage) each work was performed within a predetermined work time as shown in FIG. 7 is displayed.

[0072] When the determination result of the work content is shown in the display unit 25 in this way, the control flow once ends.

[0073] If the result obtained in step S13 deviates from the actual work situation, for example, when there is an obvious error in the determination of the work content such as when it is determined that the work content that was actually performed was hardly performed, it is highly likely that the operator operated the operation levers LA and LB by an operation pattern slightly different from the standard operation pattern stored in the pattern storage unit 22 in advance to execute the above-described work content.

[0074] Therefore, in such a case, as described above, it is preferable to add the actually measured operation pattern as a new standard operation pattern by the pattern addition unit 24, store it in the pattern storage unit 22, and then execute the above-described control flow again.

[0075] According to the above embodiment, the following effects are obtained.

[0076] According to the above-described work analysis system 100, the actually measured operation pattern of the operation levers LA and LB obtained from the operation directions of the operation levers LA and LB detected by the operation detection unit such as the first tilt sensor 11 is compared with the standard operation pattern stored in the pattern storage unit 22, whereby the work content performed by the backhoe 1 (working machine) is determined.

[0077] In this way, an operation detection unit such as a first inclination sensor 11 capable of detecting the operation directions of operation levers LA and LB for operating the backhoe 1 (working machine) is provided, and based on the operation patterns of the actual operation levers LA and LB detected by the operation detection unit such as the first inclination sensor 11, the work content performed by the backhoe 1 (working machine) is determined. By adopting such a configuration, it is possible to grasp the work content performed by the backhoe 1 (working machine) within a predetermined working time with a relatively simple configuration.

[0078] Also, by being able to grasp what kind of work was carried out with what frequency during the working time when the backhoe 1 (working machine) was operating, for example, it becomes possible to instruct an operator who operates the backhoe 1 (working machine) on improvements to the work procedure and the like. As a result, the efficiency of the work by the backhoe 1 (working machine) can be improved.

[0079] Note that the following modifications are also within the scope of the present invention, and it is also possible to combine the configurations shown in the modifications with the configurations described in the above-mentioned embodiments, or to combine the configurations described in the following different modifications with each other.

[0080] In the above embodiment, the case where the working machine is the backhoe 1 has been described. However, as described above, the working machine may be any working machine as long as it is a type of working machine that an operator operates via an operation lever. For example, it may be a wheel loader, a bulldozer, a crane, a drill jumbo, a concrete spraying machine, or the like. Naturally, the work content varies depending on the working machine, and the operation patterns corresponding to the work content also differ. However, since it is known what kind of work can be performed when the operation lever is operated in a certain way, it is possible to determine the work content performed by various working machines by the above-described work analysis system 100.

[0081] As described above, the embodiments of the present invention have been explained. However, the above embodiments merely show a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

Description of Symbols

[0082] 100 ··· Work analysis system 1 ··· Backhoe (working machine) 10 ··· Data collection unit 11 ··· First tilt sensor (operation lever tilt detector, operation detection unit) 12 ··· Second tilt sensor (operation lever tilt detector, operation detection unit) 14 ··· Third tilt sensor (working machine tilt detector, operation detection unit) 15 ··· Data collection control unit 16 ··· Imaging unit 20 ··· Work analysis unit 21 ··· Analysis unit 22 ··· Pattern memory unit 23 ··· Work determination unit 24 ··· Pattern addition unit LA ··· First operation lever (operation lever) LB ··· Second operation lever (operation lever)

Claims

1. A work analysis system for a work machine that analyzes the work content performed by the work machine, comprising: an operation detection unit capable of detecting the operation direction of an operation lever for operating the work machine; a pattern storage unit that stores a standard operation pattern of the operation lever corresponding to the work content performed by the work machine; a work determination unit that compares the measured operation pattern of the operation lever obtained from the operation direction detected by the operation detection unit with the standard operation pattern stored in the pattern storage unit, and determines the work content performed by the work machine. A work analysis system for a work machine.

2. The work determination unit determines the work content performed by the work machine within a predetermined work time, and obtains the frequency of execution within the work time for each work content. The work analysis system for a work machine according to Claim 1.

3. An imaging unit that images the work status of the work machine; a pattern addition unit that adds the standard operation pattern; and further comprising: The pattern addition unit adds the measured operation pattern when the work content determined from the image data imaged by the imaging unit is performed by the work machine, as the standard operation pattern corresponding to the work content. The work analysis system for a work machine according to Claim 1 or 2.

4. The operation detection unit: an operation lever inclination detector that detects the inclination of the operation lever; a work machine inclination detector that detects the inclination of the work machine; and has: The operation direction is obtained from the difference between the detection value of the operation lever inclination detector and the detection value of the work machine inclination detector. The work analysis system for a work machine according to Claim 1 or 2.

5. A work analysis method for a work machine that analyzes the work content performed by the work machine, comprising: an operation direction acquisition step of acquiring the operation direction detected by an operation detection unit capable of detecting the operation direction of an operation lever for operating the work machine; a work content determination step of comparing the standard operation pattern stored in a pattern storage unit that stores the standard operation pattern of the operation lever corresponding to the work content performed by the work machine with the measured operation pattern of the operation lever obtained from the operation direction detected by the operation detection unit, and determining the work content performed by the work machine. A work analysis method for a work machine.

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