摘要:
A diagnostic information providing apparatus for a construction machine and a diagnostic information display system for a construction machine, which can find an abnormality before it actually occurs and can reduce a suspension period of the construction machine. Each of the apparatus and the system comprises a sensor 40, etc. for detecting status variables related to an operating state of a hydraulic excavator 1 or ambient environment, and a controller 2. The controller stores combinations between a plurality of snapshot items and one or more status variables related to each of the snapshot items in advance, acquires or extracts status variable data, which is regarded as being related based on the stored combinations, from corresponding detected signals of the sensor 40, etc. with respect to the snapshot item selected by a selection command from an operator, thereby displaying the status variable data on a display unit 50, and compares each of the status variables or a value computed based on a plurality of status variables with a predetermined reference value range. When the status variable or the computed value is outside the predetermined reference value range, the controller determines a failure of a corresponding part, and displays the failed part or the related status variable on the display unit 50.
摘要:
A diagnostic information display system for a construction machine includes a sensor for detecting status variables related to an operating state of a hydraulic excavator or ambient environment, and a controller which stores combinations between a plurality of snapshot items and one or more status variables related to each of the snapshot items in advance, acquires or extracts status variable data, which is regarded as being related based on the stored combinations, from corresponding detected signals of the sensor 40, etc. with respect to the snapshot item selected by a selection command from an operator, thereby displaying the status variable data on a display unit, and compares each of the status variables or a value computed based on a plurality of status variables with a predetermined reference value range. A failure of a corresponding part or the related status variable is displayed on the display unit.
摘要:
A diagnostic information presenting apparatus comprises sensors 40, etc. for detecting status variables regarding operating status or ambient environments of a construction machine, and a controller 2 for outputting, to a display unit 50, a basic data display signal to display basic data necessary for an initial screen 100 in accordance with detected signals from the sensors 40, etc., and for outputting, to the display unit 50, an alarm display signal or a failure display signal to present alarm display or failure display in accordance with alarm information regarding the status variables detected by the sensors 40, etc. or failure information from the sensors 40, etc. This enables information regarding an abnormality in the construction machine to be presented to an operator with an alarm in the least necessary way without giving nuisances to the operator.
摘要:
A diagnostic information presenting apparatus comprises sensors 40, etc. for detecting status variables regarding operating status or ambient environments of a construction machine, and a controller 2 for outputting, to a display unit 50, a basic data display signal to display basic data necessary for an initial screen 100 in accordance with detected signals from the sensors 40, etc., and for outputting, to the display unit 50, an alarm display signal or a failure display signal to present alarm display or failure display in accordance with alarm information regarding the status variables detected by the sensors 40, etc. or failure information from the sensors 40, etc. This enables information regarding an abnormality in the construction machine to be presented to an operator with an alarm in the least necessary way without giving nuisances to the operator.
摘要:
A device diagnostic apparatus (201) comprising: data judgment means (101) for, when device information (121) including operating condition information and internal state information is inputted, comparing the operating condition information of the device information with operating condition information stored in a database (111) beforehand to judge whether or not both of the operating condition information agree with each other, and then outputting judgment result information; and state diagnosis means (103) for, when the judgment result information indicates that both of the operating condition information agree with each other, comparing the internal state information in the device information with internal state information stored in the database beforehand, and then outputting the result of the comparison. This makes it possible to reduce the possibility that false judgment result will be output, and to achieve the efficiency of maintenance work.
摘要:
Provided is a system by which a loading machine (202) guides a hauling machine (201) on the weight and the position of materials loaded on the hauling machine (202). The system includes: loaded state detection means (5, 6) for detecting the weight “p” and position “x” of materials already loaded on the hauling machine; hauling basic information storage means (7) for storing hauling basic information concerning the loaded state of the hauling machine; loading performance information storage means (11) for storing the loading performance information concerning the loading capacity of the loading machine; next operation calculation means (10) for calculating the next loading weight and the next loading position at which the loading machine should load materials in the next operation based on the hauling basic information, the loading performance information, and the weight and the position of materials on the hauling machine; and a display unit (12) that guides the operator of the loading machine on the next loading weight and the next loading position. This system enables the loading machine to load materials onto the hauling machine with high working efficiency.
摘要:
A learning diagnostic system for a working machine is capable of making a fault diagnosis of the working machine universally relative to various types of sensor information, and preventing a failure in the working machine by enabling a fault diagnosis even in a transient operating state that represents a transitional state between operating states. A state learning device 201 sorts inputted sensor data 101a into one under a steady operating state and one under a transient operating state, and generates, through learning, steady state data 102a and intermediate state data 103a, each including a permissible error. A state diagnostic device 202 uses the steady state data 102a to determine whether an operating state of the working machine related to the inputted sensor data is the steady operating state or the transient operating state, and make a fault determination in the steady operating state. The state diagnostic device 202 also uses the intermediate state data 103a to make a fault determination in the determined transient operating state. The intermediate state data 103a also includes intermediate point information.
摘要:
[Problem] To provide a large hydraulic excavator permitting an easy change from a machine mode corresponding to a backhoe excavator to a machine mode corresponding to a loader excavator, and vice versa.[MEANS for Solving the Problem] Arranged are a hydraulic circuit 1 provided with hydraulic pumps 11-18 and directional control valves 21-35, solenoid valves 41-43, 51-66 for controlling hydraulic pumps 11-18 and the directional control valves 21-35, and a controller 70 for controlling the solenoid valves 41-43, 51-66 in accordance with operation of control lever devices 80-83 and control pedal devices 84-87. The controller 70 performs control of the solenoid valves 41-43, 51-66 in a backhoe mode or loader mode selectively instructed by a mode instruction means 71. Control of the solenoid valves 41-43, 51-66 in the backhoe mode makes the hydraulic circuit 1 function as a hydraulic drive circuit for backhoe, while control of the solenoid valves 41-43, 51-66 in the loader mode makes the hydraulic circuit 1 function as a hydraulic drive circuit for the loader mode.
摘要:
A learning diagnostic system for a working machine is capable of making a fault diagnosis of the working machine universally relative to various types of sensor information, and preventing a failure in the working machine by enabling a fault diagnosis even in a transient operating state that represents a transitional state between operating states.A state learning device 201 sorts inputted sensor data 101a into one under a steady operating state and one under a transient operating state, and generates, through learning, steady state data 102a and intermediate state data 103a, each including a permissible error. A state diagnostic device 202 uses the steady state data 102a to determine whether an operating state of the working machine related to the inputted sensor data is the steady operating state or the transient operating state, and make a fault determination in the steady operating state. The state diagnostic device 202 also uses the intermediate state data 103a to make a fault determination in the determined transient operating state. The intermediate state data 103a also includes intermediate point information.