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US 7,480,903 B2Granted
Operation data collection system for work machine
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsYoshinori Eguchi, Fujio Matsuda
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AssigneeHitachi Construction Machinery Co., Ltd.
InventorsYoshinori Eguchi, Fujio Matsuda
Estimating the term…
An operation data recording device 11 mounted at a work machine detects and records operation data of the work machine. The operation data is collected by an external terminal 13 and transmitted from the external terminal 13 to a server 23 located in a remote place. When the operation data is collected by the external terminal 13, a program for the operation data recording device of the work machine is updated to the latest version by the external terminal 13. When transmitting the operation data from the external terminal 13 to the remote server 23, an external terminal program and a program for the operation data recording device stored in the external terminal 13 are updated to the latest versions.
An operation data collection system for a work machine comprising:
A program update method used in an operation data collection system that comprises:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Term ended 26 Nov 2024 (estimated)
The disclosure of the following priority application is herein incorporated by reference:
Japanese Patent Application No. 2002-083312 filed Mar. 25, 2002.
This invention is related to a system for collecting operation data of a work machine in which software used to record or collect the data can be updated with ease.
FIG. 1 is a block diagram that shows an operation data recording device of a work machine in an embodiment.
FIG. 2 is a block diagram that shows a communication system between an external terminal and a server.
FIG. 3 shows a flow of a procedure for collecting the data with the external terminal.
The following is an explanation of an embodiment of the present invention, given in reference to FIGS. 1 through 5.
At a work machine, e.g., a hydraulic excavator according to the embodiment, an operation data recording device 11 and its peripheral equipments are installed as shown in FIG. 1. The operation data recording device 11 includes a CPU 111 that controls various arithmetic operations or the like, a program storage unit 112 in which an on-board program (software for the operation data recording device) run by the CPU 111 is stored, a converter 113 that converts the detection output resulted from a sensor group 12 including several sensors into electronic data, a recording unit 114 in which the data thus converted at the converter 113 is recorded or stored, and a communication unit 115 that outputs the data recorded in the recording unit 114 to an external terminal 13.
The sensor group 12 is constituted of a plurality of sensors that each detect, for instance, a rotating speed of an engine, a temperature of the hydraulic oil, a temperature of engine cooling water, and an oil pressure, etc. The CPU 111 processes the detected output from the sensors by using a program for the operation data recording device (hereinafter, referred to as an on-board program) so as to record the detected output in the recording unit 114 as operation data in a predetermined format. For instance, a laptop computer is used as the external terminal 13. By connecting this personal computer to the operation data recording device 11, the operation data is collected through the recording unit 114. The data is collected mainly by a user or a service person, and the collected data is undergone graphic processing or the like and then used to manage the work machine by the person or organization that have collected the data.