JPH11140910A - Work managing device for construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work managing device for a construction machine to precisely and automatically measure the number of repeating working times and a working time. SOLUTION: A work managing device 3 for a construction machine comprises a detecting means 42 to detect an operation signal for an actuator for a construction machine; a set means 342 to set a decision condition based on an operation signal detected by the detecting means by causing a construction machine to effect a given work; and a deciding means 343 to compare an operation signal, detected by the detecting means, with a given condition during actual operation of the construction machine. When a decision condition is satisfied resulting from comparison, the number of actual work times and a working time are measured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work management apparatus for a construction machine, and more particularly to an apparatus for managing work contents such as the number of repetition work and the time required for work of a construction machine such as a shovel.

[0002]

2. Description of the Related Art Conventionally, in order to manage the work contents of construction machines such as shovels, an operator records the amount of excavation and the number of times of loading on a truck sequentially in a report, or presses a button corresponding to each work. A method of storing in a recording device has been adopted. However, in a shovel having many repetitive operations such as loading, it is troublesome for the operator to always operate the buttons, which leads to a reduction in work efficiency. Therefore, a device that automatically determines the work content of the construction machine and records and manages it is effective. As an example of this automation,
In Japanese Patent No. 16417, the operation order of each actuator corresponding to a plurality of types of operations of the construction machine is stored in the apparatus in advance, and the actual operation order of each actuator is compared with the stored operation order. There has been proposed a method of determining the work performed by a construction machine and measuring the number of times the work is performed and the work time.

[0003]

However, according to the above-mentioned prior art, for example, in the operation of loading debris with a shovel, a series of operations such as excavation, turning, and loading can be determined in advance. During operation, a series of work operations such as turning time and loading timing are stored and differ depending on the operation site and the habit of the operator. Therefore, it is difficult for the management device to automatically manage the work contents of the construction machine. Met.

In view of the above problems, an object of the present invention is to provide
The operator operates the construction machine in advance and accumulates the determination data, determines the actual operation based on the determination conditions created from the determination data, measures the number of operations, and corrects the operation correctly. An object of the present invention is to provide a work management device for a construction machine that can correct a determination condition and a measurement result when a determination cannot be made.

[0005]

The present invention employs the following means in order to solve the above-mentioned problems.

[0006] In the construction machine work management device, by detecting means for detecting the operation signal of the actuator of the construction machine, and by causing the construction machine to perform a predetermined work,
Setting means for setting a determination condition based on the operation signal detected by the detection means, and determination means for comparing the operation signal detected by the detection means with the determination condition during actual work of the construction machine. And measuring means for measuring the number of times of the actual work and the work time when the judgment condition is satisfied as a result of the comparison.

[0007] In a work management device for a construction machine,
Detecting means for detecting an operation signal of the actuator of the construction machine, and setting means for setting a determination condition based on the operation signal detected by the detecting means by causing the construction machine to perform a predetermined operation by an operator. At the time of the actual work of the construction machine by the operator, determining means for comparing the operation signal detected by the detecting means with the determination condition, and as a result of the comparison, when the determination condition is satisfied, the actual Measuring means for measuring the number of operations and the operation time.

In the work management apparatus for a construction machine according to any one of claims 1 and 2, the setting means can arbitrarily set an operation period of the setting means by an operator. I do.

In the work management apparatus for a construction machine according to any one of claims 1 to 3, the measuring means includes means for displaying that the determination condition is satisfied, and Is incorrect, the measured number of operations can be corrected by an operator.

[0010] In the work management apparatus for a construction machine according to any one of claims 1 to 4, the determination means can arbitrarily change the determination condition.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

FIG. 2A is a side view of a hydraulic shovel provided with a work management device according to the present embodiment, and FIG. 2B is a plan view showing a working state of the hydraulic shovel.

In these figures, reference numeral 1 denotes a hydraulic excavator for excavating stored debris and the like (not shown) and loading the excavated debris on a truck. Reference numeral 2 denotes a vessel 21 for loading debris and debris. Is a truck that transports.

The hydraulic excavator 1 includes a traveling body 11, a revolving body 12 provided on the traveling body 11 so as to be able to pivot, a boom 13 provided on the revolving body 12 so as to be able to move up and down, and An arm 14 rotatably provided, a bucket 15 rotatably provided at the end of the arm 14, a cylinder 16 for raising the boom, and a cylinder 1 for rotating the arm.
7, a bucket rotating cylinder 18, and an operator cab 19 provided on the revolving unit 12.

Here, by operating a bucket lever (not shown) in the operator's cab 19, an operation of rotating the bucket 15 so as to pull it, that is, a so-called dumping operation is performed. By operating the lever, an operation of turning the revolving structure 12 on the traveling structure 11 right or left is performed.

The working operation of the excavator 1 is shown in FIG.
As shown in the figure, when the truck 2 comes to the left hand of the excavator 1 with the excavation position in front, after excavation, make a left turn,
Dump bucket 15 and load debris into truck 2,
Next, the operation sequence is a one-round operation of turning right and returning to the excavation position.

Next, an example of the work management apparatus according to the present embodiment will be described with reference to FIG.

FIG. 1 is a diagram showing the overall configuration of a work management device provided in the hydraulic excavator 1. In the figure, 3 is a work management controller composed of a computer,
The work management controller 3 includes an input interface 31 for inputting input data, a CPU 32 for executing various operations, a timer 33 for measuring time in various operations, and various operations for executing various operations. And a RAM 35 for storing various data such as data necessary for various arithmetic processing, variables that may be corrected, and input / output data, and an output for outputting output data. Interface.

Reference numeral 41 denotes an operation lever which is operated by an operator in the operator cab 19 of the excavator 1 to perform various work operations of the excavator 1;
The output of 1 is sent to an actuator controller (not shown) as a pilot oil pressure to drive each actuator. The operation management controller 3 detects the pilot pressure by operating the operation lever 41.
The pressure switch 43 for sending a detection signal to the
As will be described in detail later, a button switch 44 for inputting at the start or end of the teaching process or for inputting to correct the measurement result during actual operation will be described later with reference to FIG.
As described in detail with reference to FIG. 7, a buzzer for notifying the work result obtained as a result of the work operation determination, and a display device 45 for displaying various data and processing results.

The processing programs stored in the ROM 34 include an input / output processing program 341 for taking in various detection signals detected from outside the work management controller 3 and inputting / outputting input / output data of the buzzer 44 and the like. Operates the excavator 1 and obtains the determination data for determining the work operation of the excavator 1 and the actual work based on the determination conditions created from the taught determination data. A work determination processing program for determining the operation and measuring and managing the number of work and the work time.

Although only one operating lever 41 is shown, the input signal required by the work management controller 3 is obtained by the same means, and the input signal uses the displacement and pressure of each actuator. In some cases. The button switch 43 may double as a button of an alarm buzzer attached to the tip of the operation lever 41. In addition, it is also possible to output to a lamp (not shown) other than the buzzer 44 as the notification means.

The processing result can be transmitted to another computer for further processing other than being displayed on the display device 45, or transmitted to another management device via a communication means.

FIG. 3 shows the operation of the operation lever 41.
It is a figure which shows the state of the detection signal at the time of detecting the work operation | work which goes round excavation-loading rotation-loading-return rotation by the pressure switch 42.

In this figure, Lsl is a hydraulic excavator 1
Lbd is a detection signal of the operation of the bucket dump (operation 2) of the excavator 1, and Lsr is a detection signal of the operation of the right turn (operation 3) of the excavator 1. Represent. T1s, T2s, and T3s represent start times of the respective operations, and T1e, T2e, and T3e represent end times of the respective operations.

As shown in FIG. 3, after the signal Lbd of the bucket dump during excavation, the excavator 1 turns to the left turning Lsl.
Starts, the earth discharging Lbd is performed, and then the right turn Lsr is operated.

Next, a teaching processing program 34 shown in FIG.
2 will be described with reference to flowcharts shown in FIGS. 4 and 5.

FIG. 4 is a flowchart showing an example of a processing procedure by the teaching processing program 342, and FIG. 5 is a flowchart showing each operation i (i = 1, 2,...) Shown in FIG. 4 and FIGS.
It is a flowchart which shows the detail of the detection process of x).
Here, i (i = 1, 2,... X) represents the type of work operation used for determining the work operation.

In FIG. 4, first, in step 101,
In, it is determined whether the teaching start button has been pressed,
When the teaching start button is pressed by the operator, in step 102, the number of operations S = 0, all operation flags Ti = OFF, and the Count value = 0, and all variables are initialized. Next, each processing of steps 103 to 105 follows the processing shown in FIG. 5 as described above. Here, in the case of the present embodiment, the operation 1 corresponds to the operation of the left turn Lsl of the excavator 1 as shown in FIG.

In FIG. 5, in the case where the judgment processing of the operation 1 is performed, it is judged in a step 201 whether or not the operation i = 1. In this case, since i = 1, the operation proceeds to the step 204 and the operation 1 is completed. It is determined whether or not the flag T1 = DONE. Step 2 if operation 1 has been completed
The process proceeds to 05 and ends. If the operation 1 has not been completed, it is determined in step 206 whether the operation 1 has not started, that is, whether or not the flag T1 = OFF. If the operation 1 has not started, it is determined in step 207 whether or not the signal Si detected from the pressure sensor 42 has been turned ON. When the signal Si is ON, in step 208, the flag T1 for indicating that the operation 1 has started is turned ON, and the start time T1s of the operation 1 is measured. At step 207, the signal Si is turned on.
If not, the process moves to step 209 and ends. If it is determined in step 206 that the operation 1 has started, in step 210 the signal Si
Is determined to be OFF. Signal Si is O
When it becomes FF, the flag T1 for indicating the end of the operation 1 is set to DONE, and the end time T1e of the operation 1 is set.
Time. If it is determined in step 210 that the signal Si has not been turned off, the process proceeds to step 212 and ends.

In this manner, the start time T1s and the end time T1e of the left turn Lsl (operation 1) of the excavator 1 can be measured.

It should be noted that the processing subsequent to the detection processing of operation 2 in step 104 is also executed substantially in parallel with the detection processing of operation 1 in step 103 in FIG.

Next, the detection process of operation 2 in step 104 will be described with reference to the flowchart shown in FIG.

First, in step 201, it is determined whether or not the operation i = 1. In this case, since it is not i = 1, the process proceeds to step 202 to determine whether or not the operation immediately before, that is, the operation 1 is started. Judge.

Here, in step 202, operation 2
In the determination process of the above, the case where the operation 1 has not started is the operation of the operation 2, but the original operation unrelated to the operation 1 as shown in FIG. By providing the determination processing of step 202, such an operation 2 can be excluded from the determination data to be taught.

If the operation 1 has already started, the processing after step 204 is executed. If the operation 1 has not started, the process moves to step 203 and ends.

The processing after step 204 is the same as the judgment processing of the operation 1 already described, and the description is omitted. Finally, in steps 209 and 212, the start time T2s and the end time T2e of the bucket dump Lbd (operation 2) of the excavator 1 can be measured.

Next, returning to the flowchart of FIG. By performing the same processing as the operations 1 and 2, the detection processing of the operation x up to step 105 is executed. In step 106, the time ΔT is added every time the process from step 103 to step 107 is performed, and the time required for the process of detecting operation 1 to operation x is finally counted. Next, at step 107, it is determined whether or not the teaching end button has been pressed by the operator.
If not, the process from step 103 is repeated. If the teaching end button is pressed, step 1
08, for each operation i (i = 1, 2,... X), the start time Ti measured for each operation
s and end time Tie, initial data Tis
Save as (0) and Tie (0) and end.

The teaching end may be determined by detecting the pressing of the teaching end button instead of detecting the teaching end button, or by detecting the end of the final operation x instead of the teaching end button. Good.

Next, the processing procedure of the work management controller 3 by the work determination processing program 343 shown in FIG. 1 will be described with reference to the flowcharts shown in FIG. 6 and FIGS.

FIGS. 6 and 7 and 8 are flowcharts each showing an example of a processing procedure by the work determination processing program 343.

Here, the work determination processing is to determine whether or not the work operation at the time of actual operation matches the determination condition set based on the determination data already obtained by the teaching processing. In this case, the number of operations and the operation time are automatically counted.

First, the flowchart shown in FIG. 6 will be described. When the operator starts an actual operation, in step 301, the number of operations S = 0, all operation flags Ti = OFF, and the Count value = 0, and all variables are initialized. Next, step 30
In step 2 to step 303, detection processing of operation 1 to operation x is performed. This detection processing is performed in the same manner as the detection processing of operations 1 to x in steps 103 to 105 shown in FIG.
Is performed. Next, in step 304, the time finally required for the detection processing of the operation 1 to the operation x is counted, and in step 305, it is determined whether or not the detection processing of all the operations 1 to x is completed. The detection processing of the operation i of the above is ended. Next, a condition determination process is performed based on the determination conditions set by the measured determination data. In step 306, for example, a work operation i
For (i = 1, 2,... X), the start time Tis ((0) and the operation end time Tie (0) already acquired as a result of the teaching process, and the start time measured by the current work operation From Tis and end time Tie, |
(Tis (0) -Tie (0))-(Tis-Tie)
Is calculated, and it is determined whether or not the calculated value is smaller than a predetermined value ΔTi. When all of the conditions for judging the work are satisfied, in step 307, it is determined that the predetermined work has been executed, and the work count S is updated by adding 1 to it. Further, in step 308, the lamp is turned on for 2 seconds to notify that the number of operations S has been updated. Thereafter, the processing from step 301 is repeated to determine the next series of work operations. Note that, in the determination processing of step 306, for any operation i,
If this condition is not satisfied, it is determined that the predetermined work has not been performed, and the processing from step 301 is repeated.

Next, the flowcharts shown in FIGS. 7 and 8 will be described. 7 and 8 are flowcharts of another work determination processing program different from the work determination processing program shown in FIG.

First, when the actual work is started by the operator, in step 401 shown in FIG. 7, the number of works S = 0, all the operation flags Ti = OFF, Cou
The nt value is set to 0, and all variables are initialized. Next, in steps 402 to 403, the operation 1
Ｘ Perform an operation x detection process. This detection processing is shown in FIG.
Similarly to the detection processing of operations 1 to x in steps 103 to 105 shown in FIG. 5, the determination processing of operations 1 to x is executed according to the processing procedure shown in FIG. Next, in step 404, the time finally required for the detection processing of operations 1 to x is counted, and in step 405, all operations 1 to
It is determined whether the detection processing up to the operation x has been completed, and when the detection processing of all the operations i has been completed, all the operations i
For (i = 1, 2,... X), the start time Tis and the end time Tie are measured.

Next, a condition judgment process is executed based on the judgment conditions set by the measured judgment data.
In step 406, the condition satisfaction flag Fj (j =
1, 2,... Y) are all reset. Here, j exists as many as the number of conditions y. Note that the determination conditions can be arbitrarily set to the types and numbers deemed necessary for the determination. next,
In step 407, as the condition 1, the start time T of the operation 1
1s and start time T1s obtained as a result of teaching process of operation 1
It is determined whether or not the absolute value of the difference from (0) is smaller than a predetermined difference ΔT1.
At step 408, the flag F1 is set to OK. Although the conditions after the condition 2 are omitted, the determination is made in the same manner as the condition 1. In the step 409, under the condition y, the start time Tis (0), the operation end time Tie (0), and the start time measured by the current work operation From the time Tis and the end time Tie, | (Tis (0) −Tie (0)) − (Tis−T
ie) is calculated, and it is determined whether or not the calculated value is smaller than a predetermined value △ Ti. If it is smaller, the condition y is satisfied, and the flag Fy = OK is set in step 410.
Next, in step 411 shown in FIG. 8, it is checked whether all the conditions j are satisfied, that is, whether all the flags Fj are OK. Is performed, the number of operations S is incremented by 1 and updated, and the update lamp is turned on for 2 seconds. Next, in step 413, it is determined that all the conditions j are satisfied in step 411, and the series of work operations has been performed. When the operator determines that the operation has not been performed, the operator can correct the update of the number of operations by pressing the correction button. Therefore, in step 413, it is determined whether or not the correction button has been pressed, and if not, it is determined that a predetermined work has been performed, and from step 401, it is determined that the next series of work operations has been performed. Is repeated. When the correction button is pressed in step 413, it is determined that the predetermined work has not been performed, and in step 414, 1 is subtracted from the number of work S, and the correction lamp is blinked for 2 seconds. Next, in step 415, it is considered that the set condition j was relaxed because it was determined that the work was a predetermined work even though the work did not correspond to the predetermined work, and thus the predetermined value ΔTj was reduced. , The judgment conditions are strict. Note that there is a method of making the ratio of this decrease proportional to the number of times that each determination condition has been satisfied so far.
Next, in step 411, when any of the conditions j is not satisfied, the process proceeds to step 416. In step 416, it is determined that any of the conditions j is not satisfied in step 411, and that the series of work operations did not execute the taught series of work operations. When the operator determines that the work operation has been performed, the operator can press the correction button to correct and update the number of work times. Therefore, in step 416, it is determined whether or not the correction button has been pressed. If not, it is determined that the predetermined work has not been performed, and in order to determine the next series of work operations, step 401 is performed. Is repeated. When the correction button is pressed in step 416, it is determined that a predetermined operation has been performed, and in step 417, the number of operations S is incremented by 1 and the update lamp is turned on for 2 seconds. Next, in step 418, it is determined that the work is not a predetermined work even though the work corresponds to the predetermined work, because the set condition j
Is determined to be severe, the predetermined value ΔTj is increased, and the determination condition is relaxed.

As described above, the operator presses the correction button 1
By changing the limitation of the work determination condition each time the user presses 3, the work determination accuracy can be gradually improved each time the work management device performs the work determination.

In this embodiment, the excavation / loading / turning / loading / returning round operation by the hydraulic excavator has been described as an example. However, this operation management is performed by a construction machine that performs a leveling operation and other repetitive operations. It is possible to apply the device.

As described above, according to the present embodiment, the operator operates the construction machine, sets the judgment condition from the operation of the actuator at that time, and determines the operator's actual operation of the construction machine based on the judgment condition. Therefore, it is possible to prevent erroneous determination due to differences between work sites and operators, and to measure the number of operations and the operation time of the construction machine with high accuracy. Further, when the determination is made erroneously, the number of times of work provided with the correction means can be easily corrected, and the determination condition can be easily corrected.

[0049]

As described above, according to the present invention, the operator is caused to perform a predetermined operation on the construction machine in advance, and a determination condition is set based on the detected operation signal. Work construction machinery,
The operation signal detected at that time is compared with the determination condition, and when the determination condition is satisfied, the number of operations and the operation time are measured. It is possible to measure the number of times and the operation time of the machine with high accuracy.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a work management device provided in a hydraulic shovel according to an embodiment of the present invention.

FIG. 2 is a side view of a hydraulic shovel including the work management device according to the embodiment and a plan view showing a working state of the hydraulic shovel.

FIG. 3 is a diagram illustrating a state of a detection signal at the time of detecting a work operation that goes through a cycle of excavation-loading rotation-loading-returning of the excavator.

4 is a flowchart showing a processing procedure of a work management controller 3 by a teaching processing program 342 shown in FIG.

FIG. 5 is a flowchart showing a processing procedure of a work management controller 3 by a teaching processing program 342 shown in FIG. 2;

6 is a flowchart showing a processing procedure of a work management controller 3 by a work determination processing program 343 shown in FIG.

7 is a flowchart showing another processing procedure of the work management controller 3 by the work judgment processing program 343 shown in FIG.

8 is a flowchart showing another processing procedure of the work management controller 3 by the work judgment processing program 343 shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hydraulic excavator 13 Boom 14 Arm 15 Bucket 16, 17, 18 Hydraulic cylinder 3 Work management controller 342 Teaching processing program 343 Work judgment processing program 41 Operation lever 42 Pressure switch 43 Button switch 44 Buzzer 45 Display device

Claims (5)

[Claims] 1. A work management device for a construction machine, comprising: a detection unit for detecting an operation signal of an actuator of the construction machine; and an operation signal detected by the detection unit by causing the construction machine to perform a predetermined operation. Setting means for setting a judgment condition based on: a judgment means for comparing an operation signal detected by the detection means with the judgment condition during actual work of the construction machine; and a result of the comparison, the judgment condition And a measuring means for measuring the number of times of the actual work and the work time when the condition is satisfied. 2. A work management device for a construction machine, comprising: a detection unit for detecting an operation signal of an actuator of the construction machine; and an operator causing the construction machine to perform a predetermined operation. Setting means for setting a determination condition based on the operation signal, at the time of actual work of the construction machine by the operator,
Determination means for comparing the operation signal detected by the detection means and the determination condition, and a result of the comparison, when the determination condition is satisfied, a measurement means for measuring the number of times of the actual work and the work time, A work management device for a construction machine, comprising: 3. The method according to claim 1, wherein
The work management device for a construction machine according to any one of claims 1 to 3, wherein the setting unit can arbitrarily set an operation period of the setting unit by an operator. 4. The method according to claim 1, wherein
In one embodiment, the measuring means includes means for displaying that the determination condition is satisfied, and when the determination is incorrect, the measured number of operations can be corrected by an operator. Work management equipment for construction machinery. 5. The method according to claim 1, wherein
The work management device for a construction machine according to any one of claims 1 to 3, wherein the determination unit can arbitrarily change the determination condition.