Construction machine diagnosis information presenting device, diagnosis information display system, and diagnosis information presenting method

• US 7,587,264 B2
• Filed: 08/10/2004
• Issued: 09/08/2009
• Est. Priority Date: 09/04/2003
• Status: Active Grant

• Current Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Inventors: Fujita, Koji, Ohwada, Yoshinori, Akino, Shinji, Ikari, Takanobu, Furuno, Yoshinori
• Primary Examiner(s): CAMBY, RICHARD M
• Application Number:
  US10/549,814
• Publication Number:
  US 20060200283A1
• Time in Patent Office: 1,855 Days
• Field of Search: 701 29- 36, 701/50, 701100-102, 702/182, 702/188
• US Class Current: 701/29
• CPC Class Codes: B66C 13/16 Applications of indicating, registering, or weighing devices in crane hooks B66C1/40; in safety gear B66C15/00; weighing-apparatus G01G; remote indicating in general G08
• CPC Class Codes: E02F 9/2225 using pressure-compensating valves
• CPC Class Codes: E02F 9/2285 Pilot-operated systems
• CPC Class Codes: E02F 9/2292 Systems with two or more pumps
• CPC Class Codes: E02F 9/2296 Systems with a variable displacement pump
• CPC Class Codes: E02F 9/24 Safety devices , e.g. for preventing overload E02F9/226 takes precedence
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence
• CPC Class Codes: G07C 3/12 in graphical form

Abstract

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.

Claims

1. A diagnostic information presenting apparatus for a construction machine, comprising:

detection means for detecting status variables regarding operating status or ambient environments of a construction machine;

a display unit for displaying a usual screen having a basic data display area for displaying basic data necessary in operation, an alarm display area for displaying a preset alarm mark related to details of alarm, and a failure display area for displaying a preset failure code related to details of failure;

a basic data display control unit for outputting display signals of the basic data based on the status variables detected by said detection means so as to display the basic data on said basic data display area of said usual screen;

an alarm display control unit for determining, based on the status variables detected by said detection means, whether the status variables indicate an alarmed state and outputting alarm display signals when the status variables are determined as indicating the alarmed state, so as to display the alarm mark on said alarm display area on condition that said usual screen is not shifted;

a failure display control unit for determining, based on the status variables detected by said detection means, whether the status variables indicate a failed state of said detection means and outputting failure display signals when the status variables are determined as indicating the failed state, so as to display the failure code on said failure display area on condition that said usual screen is not shifted; and

a screen display control unit for shifting said usual screen displayed in said display unit in response to manipulation by an operator to an alarm list screen for displaying a list of current and past alarms, or to a failure list screen for displaying a list or current and past failures.

2. The diagnostic information presenting apparatus for the construction machine according to claim 1,

wherein said screen display control unit shift said alarm list screen in response to manipulation by the operator who selects one of the alarm list items on said alarm list screen displayed in said display unit to a detailed information screen for displaying a location general drawing representing the location where the selected alarm is issued, or to a circuit diagram screen for displaying the occurrence location of the selected alarm on a circuit diagram.

3. The diagnostic information presenting apparatus for the construction machine according to claim 1,

wherein said screen display control unit shifts said failure list screen in response to manipulation by the operator who selects one of the failure list items on said failure list screen displayed in said display unit to a detailed information screen for displaying a location general drawing representing the location where the selected failure is issued, or to a circuit diagram screen for displaying the occurrence location of the selected failure on a circuit diagram.

4. The diagnostic information presenting apparatus for the construction machine according to claim 1,

wherein the base data displayed on said base data display area of said usual screen is selected from engine revolution speed, radiator cooling water temperature, turbo-boosted pressure, fuel level, working oil temperature, atmospheric temperature, and battery voltage.