WO2012111597A1 - 作業機 - Google Patents
作業機 Download PDFInfo
- Publication number
- WO2012111597A1 WO2012111597A1 PCT/JP2012/053239 JP2012053239W WO2012111597A1 WO 2012111597 A1 WO2012111597 A1 WO 2012111597A1 JP 2012053239 W JP2012053239 W JP 2012053239W WO 2012111597 A1 WO2012111597 A1 WO 2012111597A1
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- WIPO (PCT)
- Prior art keywords
- warning
- time
- erasure
- warning information
- unit
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/187—Machine fault alarms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/267—Diagnosing or detecting failure of vehicles
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
Definitions
- the present invention relates to a work machine such as a backhoe, a tractor, or a combine.
- Patent Document 1 when an abnormality occurs in the work machine in the work machine, the fact that the work machine is abnormal is stored in a control device provided in the work machine (for example, Patent Document 1).
- the abnormality information related to the abnormality is stored in the controller so that the abnormality information can be viewed via the display device. It has become.
- the abnormality information can be stored while the abnormality information stored in the display device can be erased.
- the present invention has an object to provide a work machine that can grasp that the warning information has been deleted and can easily grasp the occurrence state of the warning generated in the work machine. Is.
- the present invention has an object to provide a working machine that can easily determine whether or not warning information has occurred, and can easily specify the time to delete warning information. It is.
- warning generation means for determining whether or not there is an abnormality and generating a warning when there is an abnormality
- warning storage means for storing warning information related to the warning
- warning storage means A display means for displaying the stored warning information; and a warning erasing means for erasing the warning information, wherein the warning storage means is configured to store warning information relating to a warning generated after being erased by the warning erasing means. It is characterized by being.
- the display means is constituted by a display device for displaying the warning information, and an erasure execution switch for erasing the warning information by the warning erasing means is connected to the display device.
- the warning storage means stores warning information related to a warning generated after erasure is executed by the erasure execution switch.
- warning generation means for determining whether or not it is abnormal and generating a warning when it is abnormal, warning storage means for storing warning information related to the warning, and warning storage means
- the display means includes a display device that displays the warning information, and the display device includes an erasure execution switch that executes erasure to erase the warning information by the warning erasure means.
- the erasing time storage means stores the time when erasing is executed by the erasing execution switch as the erasing time.
- the invention according to claim 5 is characterized in that the warning storage means is configured to store warning information related to a warning generated after being erased by the warning erasing means.
- the invention according to claim 6 is characterized in that the warning storage means stores warning information relating to a warning that has occurred first among warnings that have occurred after erasure of the warning information.
- the invention according to claim 7 is characterized in that the warning storage means stores warning information relating to a warning that has occurred last among warnings that have occurred after erasure of the warning information.
- the invention according to claim 8 is characterized in that the warning information after deletion cannot be deleted.
- the present invention has the following effects. According to the first aspect of the present invention, it is possible to grasp that the warning information has been erased, and it becomes easy to grasp the occurrence state of the warning generated in the work implement. According to the second aspect of the present invention, it is possible to clearly know that the warning information remaining in the warning storage means is generated after the deletion is executed by the deletion execution switch.
- the third aspect of the present invention it is possible to easily grasp whether or not warning information is generated, and to easily specify the time for deleting the warning information.
- the invention of claim 4 it is possible to specify the time when the erasure is executed by the erasure execution switch.
- the invention of claim 5 it is possible to accurately grasp the warning information generated after erasure.
- the sixth aspect of the invention it is possible to accurately grasp the warning information first generated after erasure.
- the seventh aspect of the invention it is possible to accurately grasp the warning information generated last after erasure.
- the eighth aspect of the invention since the warning information newly generated after erasure cannot be erased, the information after intentional erasure can be reliably left.
- FIG. 1 is an overall front view of a display device. It shows an example of information to be displayed when the display device is set to the normal display mode. It is the figure which showed the list of warning codes. An example in which warning information is stored in the storage table of the warning storage means is shown. It is explanatory drawing explaining overwriting of warning information. An example of information to be displayed when the display device is set to a special display mode is shown. An example in which warning information is erased by a warning erasing unit is shown. The modification which erase
- elimination means is shown. The whole side view of a working machine is shown. It is a block diagram of the control system in another working machine.
- warning information is stored in the first storage table of the warning storage means. It is explanatory drawing explaining overwriting of the warning information in a 1st memory
- An example in which warning information in the first storage table is erased by the warning erasing means is shown.
- An example in which the time is stored in the second storage table of the erasing time storage means is shown.
- the procedure for erasing the warning information by the warning erasing means is shown.
- An example in which the erase time is stored in the second storage table for each warning code is shown.
- It is a block diagram of the control system in another working machine. It is explanatory drawing when the warning information to be pseudo-erased is automatically set. It shows a display example of warning information before and after pseudo erasure. It is explanatory drawing when the warning information to be pseudo-erased is set manually.
- FIG. 10 shows an overall view of the working machine of the present invention.
- the work machine is a backhoe, but it may be a tractor, a combiner, or other work.
- the overall configuration of the work machine will be described.
- the work machine 1 includes a lower traveling device 2 and an upper rotating body 3.
- the traveling device 2 includes a pair of left and right traveling bodies 4 each having a rubber cover, and a crawler traveling device in which both traveling bodies 4 are operated by a traveling motor M is employed. Further, a dozer 5 is provided at the front portion of the traveling device 2.
- the swivel body 3 includes a swivel base 12 supported on the traveling device 2 via a swivel bearing 11 so as to be able to turn left and right around a swivel axis in the vertical direction, and a working device 13 ( Drilling device).
- a working device 13 Drilling device
- On the swivel base 12, an engine, a radiator, a driver's seat 9, a fuel tank, a hydraulic oil tank, a control valve for controlling hydraulic oil from the hydraulic oil tank, and the like are provided on the swivel base 12, an engine, a radiator, a driver's seat 9, a fuel tank, a hydraulic oil tank, a control valve for controlling hydraulic oil from the hydraulic oil tank, and the like are provided.
- a display device 15 that displays various information regarding the work machine 1 is provided.
- the driver's seat 9 is surrounded by a cabin 14 provided on the turntable 12.
- the working device 13 includes a swing bracket 17 supported on a support bracket 16 provided at the front portion of the swivel base 12 so as to be offset slightly to the right from the central portion in the left-right direction, and swingable to the left and right around the vertical axis.
- the boom 18 is pivotally attached to the swing bracket 17 so that the base side is pivotable about a left-right axis, and is supported so as to be swingable up and down, and on the distal end side of the boom 18 about the left-right axis.
- the arm 19 is pivotally mounted and supported so as to be able to swing back and forth, and a bucket 20 is provided on the distal end side of the arm 19 so as to be capable of squeezing and dumping.
- the swing bracket 17 is swung by expansion and contraction of a swing cylinder provided in the swivel base 12, and the boom 18 is swung by expansion and contraction of a boom cylinder 22 interposed between the boom 18 and the swing bracket 17.
- the arm 19 is swung by the expansion and contraction of the arm cylinder 23 interposed between the arm 19 and the boom 18, and the bucket 20 is a bucket cylinder 21 interposed between the bucket 20 and the arm 19. Squeezing and dumping is performed by expanding and contracting.
- FIG. 1 is a block diagram of a control system in a work machine.
- the control system for a work machine includes a main control device 30 that mainly controls the work machine, and a display device 15 arranged separately from the main control device 30.
- the main control device 30 and the display device 15 can transmit and receive data via a vehicle communication network N such as a controller area network (CAN communication).
- vehicle communication network may be anything as long as the main control device 30 and the sub control unit 31 can transmit and receive data, and may be FlexRay or another network.
- the main control device 30 is composed of a CPU and the like, and can control various devices (traveling device, working device, etc.) provided in the work machine 1.
- the main control device 30 can perform traveling second speed control, unload switching control, starter switching control, anti-theft control, and the like.
- the traveling 2 speed control is a control for switching the traveling apparatus 2 between a high speed and a low speed based on an ON / OFF input signal from a traveling 2 speed switch 32 that switches the traveling apparatus 2 between a high speed and a low speed.
- the unload switching control the hydraulic oil discharged from the pump can be supplied to the control valve and cannot be supplied based on an ON / OFF input signal from a lever lock switch 33 provided on the side of the driver's seat 9.
- the starter switching control is a control for switching the starter relay 35 based on an on or off input signal from the starter switch 34.
- the anti-theft control permits the starter relay 35 to be turned on from off when the ID code built in the engine key for starting the engine and the ID code built in the main control device 30 are verified. In this control, the starter relay 35 is not permitted to be turned on from off when collation is not established.
- the anti-theft means is provided with a registration function for registering a new engine key ID code in the main controller 30.
- the main control device 30 may be any device that controls various devices, and is not limited to the exemplified control.
- the main controller 30 is connected to a plurality of detectors 40 that detect various states of the work implement with sensors or the like.
- the main control device 30 includes an engine rotation sensor (engine rotation detector) 40a that detects the engine speed, a water temperature sensor (water temperature detector) 40b that detects the water temperature, and fuel (remaining amount). Is connected to a fuel sensor (fuel detector) 40c. That is, the state detected by the detector 40 such as the engine rotation sensor 40a, the water temperature sensor 40b, and the fuel sensor 40c is input to the main control device 30.
- the main control device 30 is also supplied with an engine key ID code for starting the engine, a battery voltage, and the like.
- the main control device 30 transmits the respective detection information (actual measurement values) to the display device 15 for vehicle communication.
- the data is transmitted to the display device 15 via the network N.
- the main control device 30 determines whether or not an abnormality has occurred in the work implement 1 based on the detection information (engine speed, fuel, water temperature, etc.) acquired from the detector 40 and determines that it is abnormal.
- warning information information about the warning (called warning information) is stored (saved), or the warning information is transmitted to the display device 15 so that the warning information can be displayed on the display device 15. It is like that.
- the display device 15 includes a display unit 41 that can display various information, and a control unit 31 that controls the display unit 41. Specifically, when the display device 15 is viewed from the front, twelve single LED display portions 41A are provided on the left side of the display device 15, a segment type display portion 41B is provided on the lower side, and on the right side. Two pointer-type display portions 41C arranged in the vertical direction are provided.
- Each single-type LED display unit 41A (sometimes referred to as LED display unit 41A) displays detection information itself and warning information by turning on, turning off, and blinking LED elements.
- the LED display unit 41A provided in the display device 15 includes a traveling LED display unit 41A1, a registration LED display unit 41A2, a forgetting to remove LED display unit 41A3, a fuel LED display unit 41A4, and a water temperature LED display unit. 41A5, warning LED display 41A6, and the like.
- the traveling LED display unit 41A1 lights up when the work machine 1 enters a high-speed traveling state.
- the registration LED display section 41A2 is lit when an engine key is inserted into a cylinder when registering an ID code with the registration function (lights up to notify the timing of insertion).
- the forgetting to remove LED display portion 41A3 is lit when notifying that the engine key has been forgotten to be removed under the condition that the engine key inserted into the cylinder at the time of registration of the ID code has been inserted for a long time.
- the fuel LED display 41A4 blinks when the fuel is in shortage.
- the LED display section 41A5 for water temperature blinks when the water temperature becomes abnormal or when the water temperature sensor 40b becomes abnormal and a warning is issued.
- the warning LED display 41A6 blinks when a warning is issued due to some abnormality in the work machine 1.
- the LED display portion 41A of the display device 15 includes an AUX LED display portion 41A7, a time adjustment LED display portion 41A8, a blow LED display portion 41A9, etc., but the description thereof is omitted.
- the segment type display unit 41B displays various information by turning on or off the plurality of segments 42.
- the segment type display unit 41B is composed of 48 segments 42 (segment elements). Specifically, in the segment type display unit 41B, five segment groups 43 (referred to as seven segments) each including seven segments 42 are arranged in the left-right direction, and characters (Y, M, D) are arranged around the seven segments 43. , AM, PM) and nine segments composed of symbols ( ⁇ ) are arranged, and four segments composed of dots (:,.) Are arranged between seven segments 43. .
- the 7 segment 43 is for displaying numbers, characters, symbols, and the like. The segments of the characters and symbols arranged around the 7 segment 43 are used for instructing screen operations and on what screen. It is supplementary as you can see.
- FIG. 3 shows an example of information displayed on the segment type display unit 41B.
- an hour meter (Cumulative time) is displayed.
- the hour meter is an accumulated time that the manufacturer of the work machine 1 drives the work machine 1 after shipping the work machine 1 and is stored in the main control device 30 or the display device 15. It has become.
- the segment type display unit 41B when the second switch 51 connected to the display device 15 is pressed separately from the first switch 50 in a state where the accumulated time (hour meter) is displayed on the segment type display unit 41B, the segment type display unit 41B. The information to be displayed is switched, and the current time is displayed on the segment type display unit 41B.
- the second switch 51 is pressed while the time is displayed on the segment type display unit 41B, the engine speed is displayed on the segment type display unit 41B.
- the warning code N of the warning generated in the work machine 1 is displayed on the segment type display unit 41B. Is done. When a plurality of warnings are generated on the work machine 1, warning codes N are displayed in order. If no warning has occurred, the warning code N is not displayed.
- “E:” displayed on the left side of the segment type display unit 41B indicates that the numerical value on the right side is a warning code.
- the pointer-type display unit 41 ⁇ / b> C includes a needle unit 45 that rotates at a predetermined angle with respect to the center of rotation, and a gauge display unit 46 that overlaps the needle unit 45. Various information is displayed depending on the position of the tip of the needle 45 relative to the gauge display 46.
- a fuel pointer type display unit 41C1 is provided on the upper side, and a water temperature pointer type display unit 41C2 is provided on the lower side of the fuel pointer type display unit 41C1.
- the fuel pointer type indicator 41C1 indicates that the fuel is full when the tip of the needle 45 points to the upper end of the gauge indicator 46, and the fuel is insufficient when the lower end of the gauge indicator 46 is indicated. Indicates that it is (lost).
- the water temperature pointer type indicator 41C2 indicates that the water temperature is high when the tip of the needle portion 45 points to the upper end of the gauge indicator 46, and indicates that the water temperature is low when the lower end of the gauge indicator 46 is indicated.
- the control unit 31 of the display device 15 transmits / receives data (information) between the main control device 30 and the display device 15 and causes the display unit 41 to display various pieces of input information (detection information, warning information).
- Control and includes a CPU, a general-purpose IC, and the like. Further, the “normal display mode” and the “special display mode” in the display device 15 are incorporated in the main control device 30 even if they are executed by the control program incorporated in the control unit 31 of the display device 15. It may be a control program.
- the main control device 30 includes a warning generation unit 55, a warning storage unit 56, and a warning deletion unit 57.
- the warning generating unit 55 and the warning erasing unit 57 are configured by a program stored in the main control device 30.
- the warning generating means 55 determines whether or not the work implement 1 is abnormal based on detection information detected by the detector 40, and generates a warning when it is determined that it is abnormal.
- the warning generating means 55 is configured such that the detected engine speed is equal to or higher than a predetermined speed (for example, 700 rpm), the detected water temperature is equal to or higher than a predetermined temperature (for example, 120 ° C. or higher), and further, a predetermined time or longer (for example, When it continues, the work implement 1 is determined to be abnormal (overheating), and a warning that it is overheating is generated.
- the warning generating means 55 generates a warning when an abnormality such as a CAN communication abnormality, a fuel sensor disconnection abnormality, or a water temperature sensor disconnection abnormality occurs.
- the CAN communication abnormality is, for example, an abnormality in which the CAN communication with the display device 15 cannot be performed normally although the main control device 30 is operating normally.
- the fuel sensor disconnection abnormality is an abnormality in which the resistance value detected by the fuel sensor 40c is equal to or greater than a predetermined value and the resistance value is very large, and the fuel sensor 40c and the main control device 30 are considered to be disconnected.
- the water temperature sensor disconnection abnormality is an abnormality in which the resistance value detected by the water temperature sensor 40b is equal to or greater than a predetermined value, the resistance value is very large, and the water temperature sensor 40b and the main control device 30 are considered to be disconnected.
- the warning generation means 55 outputs a warning code N (warning type) as shown in FIG. 4 so that each warning (abnormality) can be identified when the warning is generated.
- a warning code N regarding CAN communication abnormality is “01”
- the warning code N regarding overheating is “15”
- the warning code N regarding fuel sensor disconnection abnormality is “17”
- the warning code regarding water temperature sensor disconnection abnormality N is set to “18”.
- the warning generating means 55 outputs a warning code “01” corresponding to the CAN communication abnormality when a CAN communication abnormality occurs, or outputs a warning code “15” corresponding to the overheating when an overheating occurs. . That is, the warning generation unit 55 determines whether the work implement 1 is abnormal using various information input to the main control device 30. A warning code N corresponding to is generated. Needless to say, the warning generated by the warning generation unit 55 is not limited to the above-described example, and may be any warning.
- the warning storage means 56 is composed of, for example, a nonvolatile memory (for example, a flash memory) and stores information related to warning (warning information).
- the warning storage means 56 stores at least the warning code N (warning type) of warning and the time when the warning occurs in correspondence. In the following description, the warning code N is used to identify (distinguish) warning information.
- the warning storage means 56 has a storage table for storing the contents of warning information separately for each warning code N. That is, a storage table is assigned to each warning. Further, each storage table is divided into an initial hour meter unit, an initial time unit, an after-erasure hour meter unit, a post-erase time unit, a final hour meter unit, a final time unit, a count unit, and a cumulative count unit.
- the initial hour meter section warns the accumulated time (hour meter) at the time of occurrence of the warning when the warning corresponding to the warning code N is generated for the first time after the work machine 1 is shipped from the manufacturer that manufactures the work machine 1. It is a part that is stored as information.
- the initial time portion is a portion that stores the time (occurrence time) when the warning is generated as warning information when the warning corresponding to the warning code N is generated for the first time after the work machine 1 is shipped from the manufacturer.
- the warning storage means 56 stores “100 hours”, which is an accumulated time when an overheat warning is generated for the first time, in the initial hour meter unit corresponding to the overheat, and “2009 when the overheat occurs. “March 2” is stored in the initial time portion corresponding to overheating.
- the warning information stored in the initial hour meter portion may be referred to as initial cumulative time
- the warning information stored in the initial time portion may be referred to as initial occurrence time.
- the after-erasure hour meter unit when the warning information is erased from the warning storage means 56 by the warning erasure means 57 as described later (after the erase execution switch described later is pressed), when a new warning occurs.
- the accumulated time (hour meter) at the time when a new warning is generated is stored as warning information.
- the post-erase time part is a part for storing the time when a warning is generated as warning information when a warning is newly generated after the warning information is deleted by the warning erasing means 57 (after an erase execution switch described later is pressed). .
- the warning storage means 56 stores the accumulated time “140 hours” in the post-erase hour meter unit corresponding to overheating, and overheats “July 6, 2009”, which is the time when overheating occurred. Store in the corresponding post-erase time portion.
- the warning storage means 56 overwrites the accumulated time stored in the hour meter section after erasure and, after erasure, when the warning information is erased once and the warning is generated several times without being erased.
- the time stored in the time part is also overwritten.
- the warning information stored in the hour meter portion after erasure may be referred to as an intermediate cumulative time
- the warning information stored in the time portion after erasure may be referred to as an intermediate occurrence time.
- the final hour meter unit is a part that stores the accumulated time (hour meter) at the time of warning as warning information when the latest warning occurs.
- the last time part is a part that stores the time when the latest warning occurs as warning information. As shown in FIG. 6A, for example, “100 hours” that is the accumulated time is already stored in the final hour meter portion, and “March 2, 2009” that is the time is already stored in the final time portion. In this case, it is assumed that a warning is subsequently issued with the same warning code N on July 6, 2009, and the accumulated time at that time is 140 hours.
- the warning storage means 56 overwrites and stores “140 hours”, which is the accumulated time, in the final hour meter portion, and stores “July 6, 2009”, which is the time that occurred in the final time portion, as the final time portion. Overwrite and memorize. As a result, the warning information stored in the warning storage means 56 changes from the state shown in FIG. 6 (a) to the state shown in FIG. 6 (b).
- the warning information stored in the final time portion may be referred to as the latest accumulated time, and the warning information stored in the final time portion may be referred to as the latest occurrence time.
- the count part is a part for storing the number of times (number of occurrences) of warnings as warning information. For example, every time an overheat warning is repeatedly generated, the number of occurrences of the warning is counted up, and the warning storage means 56 stores the number of occurrences by overwriting in the counting unit every time the number is counted up. As will be described later, the count unit is erased by the warning erase unit 57. When the number of occurrences of the count unit is erased by the warning erase unit 57, the number of occurrences becomes zero.
- the cumulative count unit is a part for storing the cumulative number of occurrences of the warning for the same warning after the work machine 1 is shipped from the manufacturer, and cannot be erased by the warning erasure means 57 (the number of occurrences of the cumulative count unit is determined). Cannot be zero).
- the warning storage unit 56 overwrites and stores the number of occurrences in the cumulative count unit every time a warning occurs.
- the warning information stored in the count unit may be referred to as an intermediate occurrence count
- the warning information stored in the cumulative count unit may be referred to as an accumulated occurrence count.
- the warning storage means 56 stores eight types of warning information (initial cumulative time, initial occurrence time, intermediate cumulative time, intermediate occurrence time, latest cumulative time, latest occurrence time, intermediate in a storage table defined for each warning type. The number of occurrences and the cumulative number of occurrences) are stored. Now, various warning information stored in the warning storage means 56 can be displayed when the display device 15 is set to the special display mode instead of the normal display mode described above. That is, the display device 15 can be operated as a display unit that displays the warning information stored in the warning storage unit 56.
- the display device 15 is switched from the normal display mode to the special display mode.
- the second switch 51 is pressed for a few seconds to set the display device 15 to the “warning history mode” in the “special display mode”.
- the warning code N of warning information is displayed on the segment type display unit 41B (warning code display screen).
- This warning code display screen is a screen for selecting which warning is to be displayed from among a plurality of warnings.
- the warning code N is changed. Can do.
- the warning code display screen it is possible to set which storage table of warning information is to be read from the warning storage means 56 for each warning type.
- the intermediate occurrence count (warning information stored in the count unit) is read from the storage table corresponding to the warning code N to the display device 15. The number of intermediate occurrences (warning information stored in the counting unit) is displayed on the segment type display unit 41B.
- the initial accumulated time (warning information stored in the initial hour meter unit) is read from the storage table corresponding to the warning code N to the display device 15 and is initially displayed in the segment type display unit 41B.
- the accumulated time is displayed.
- the initial occurrence time (warning information stored in the initial time portion) is read from the storage table corresponding to the warning code N, and a part of the initial occurrence time (Next, when the second switch 51 is pressed, a part of the initial occurrence time (month and day) is displayed. In this way, each time the second switch 51 is pressed, the warning information is sequentially read from the storage table and displayed on the segment type display unit 41B.
- each warning information is read from the storage table.
- the warning code N is displayed on the warning code display screen
- the warning information in the storage table corresponding to the warning code N is displayed.
- the information may be read out in a lump and temporarily stored, and thereafter, each time the second switch 51 is pressed, the warning information may be sequentially displayed on the segment type display unit 41B.
- warning erasure unit 57 logically erases the warning information stored in the warning storage unit 56.
- the warning deletion unit 57 processes the logically deleted warning information as not existing in the warning storage unit 56. .
- the second switch 51 in order to activate the warning erasure means 57, the second switch 51 is pressed for a few seconds on the display device 15, and the display device 15 is set to the “history erasure mode” in the “special display mode”. To do. After the display device 15 is set to the history erasure mode, when the second switch 51 is pressed for a few seconds, the warning erasure means 57 is activated. At this time, the second switch 51 becomes an erasure execution switch for executing erasure.
- the warning erasing unit 57 When the warning erasing unit 57 is activated by pressing the second switch 51, among the warning information stored in the warning storage unit 56, the initial cumulative time, the initial generation time, the intermediate cumulative time other than the cumulative number of occurrences, the intermediate generation time, Logically erase the latest cumulative time, latest occurrence time, and intermediate occurrence count. That is, when the warning erasing unit 57 is activated, the intermediate cumulative time, intermediate generation time, latest cumulative time, latest generation time, and number of intermediate generations in all the storage tables of the warning storage unit 56 are deleted.
- the initial accumulated time is “100h”
- the initial occurrence time is “2/3/2009”
- the intermediate accumulated time is “140h”
- the intermediate occurrence time is “6”. / 7/2009 “, the latest accumulated time” 140h “, the latest occurrence time” 6/7/2009 “, the intermediate occurrence number” 1 ", and the accumulated occurrence number” 13 " 56.
- the warning storage unit 56 stores “100h” as the initial cumulative time and “2/3/2009” as the initial occurrence time. Therefore, “13”, which is the cumulative number of occurrences, remains, and other information is erased and cannot be displayed on the display device 15. That is, when the warning information is erased by the warning erasure means 57, the erased warning information is handled as not in the warning storage means 56, and the erased warning information cannot be read from the warning storage means 56. The display device 15 cannot display.
- the warning storage unit 56 is configured to store the warning information generated after the deletion by the warning deletion unit 57. That is, the warning storage means 56 includes an after-erasure hour meter section that stores the accumulated time (hour meter) at the time of warning when a warning is newly generated after the warning information is deleted by the warning deleting means 57. In addition, a post-erase time portion is provided for storing the time when the warning occurs.
- warning information after erasure can be left separately from other warning information, and can be confirmed using the display device 15 or the like.
- warning information is simply left after a warning is generated, so even if a warning occurs after erasure or a warning that occurs without erasure, it remains as warning information without distinction. It was a situation that was. For this reason, even when the history (history) of the warning remains in the warning storage means 56 such as a memory, it is difficult to determine at which time point (after deletion) the warning has occurred.
- the present invention if the warning information (intermediate accumulated time) stored in the hour meter section after erasure and the warning information (intermediate occurrence time) stored in the time section after erasure are viewed, at least the erasing operation is performed. It is possible to ascertain that a warning has occurred in the past from warning information generated after deletion. Since a warning once generated is likely to occur again, it is possible to guess what the warning before erasure is by looking at the warning code N corresponding to the hour meter portion after erasure and the time portion after erasure.
- the user or the like intentionally deletes the warning, Even if an attempt is made to lie that no overheating has occurred, new overheating is likely to occur after erasure, and overheat generated after erasure remains in the hour meter portion after erasure and the time portion after erasure. As a result, it is possible to accurately grasp the past warning situation of the work machine 1.
- the warning storage means 56 stores warning information generated after the erasure is executed by the erasure execution switch (second switch 51). Therefore, the warning storage means 56 clearly executes the erasure execution. Warning information generated after pressing the switch will remain. Therefore, it is possible to clearly grasp that the warning information remaining in the warning storage means 56 has been generated after execution of erasure.
- the warning storage means 56 may be configured to store the warning information generated first among the warnings generated after the warning information is deleted.
- the warning information in the hour meter portion after erasure and the warning information in the time portion after erasure can be logically erased, but this warning information cannot be erased (cannot be erased) by the warning erasure means 57. Also good. That is, the intermediate accumulated time stored in the hour meter section after erasure and the intermediate occurrence time stored in the post-erasure time section are held so that even if the erasure execution switch is pressed in the history erasing mode, the logic is not erased.
- the initial cumulative time is “100h”, the initial occurrence time is “2/3/2009”, the intermediate cumulative time is “140h”, and the intermediate occurrence time is “6”. / 7/2009 “, the latest accumulated time” 140h “, the latest occurrence time” 6/7/2009 “, the intermediate occurrence number” 1 ", and the accumulated occurrence number” 13 " 56, even if the warning erasing means 57 is operated, as shown in FIG. 9B, at least the intermediate accumulated time “140h” and the intermediate occurrence time “6/7/2009” "May be held in the warning storage means 56. In this way, it is possible to always check the intermediate accumulated time and the intermediate generation time, which are the warning information after erasure, using the display device 15, and it is easy to grasp the warning information after the erasure.
- the storage table for storing the warning information generated after erasure in the storage table (hour meter section after erasure and time section after erasure) is stored.
- the warning information stored in the hour meter section after erasure and the time section after erasure is not only displayed on the display device 15 but also a personal computer or the like can be connected to the main control device 30 or the display device 15. It may be made possible to take it out to the outside.
- the method for extracting the warning information stored in the storage portion after erasure may be not only by using a personal computer but also by connecting an external flash memory and by other methods.
- the main control device 30 includes warning generation means 155, warning storage means 156, warning deletion means 157, and deletion time storage means 158.
- the warning generating unit 155 and the warning erasing unit 157 are configured by a program stored in the main control device 30.
- the warning generation unit 155 determines whether the work implement 1 is abnormal or not based on the detection information detected by the detector 40 and the like, similarly to the warning generation unit 55 described above. Sometimes a warning is issued.
- the warning generation means 155 is configured such that the detected engine speed is equal to or higher than a predetermined rotation (for example, 700 rpm) and the detected water temperature is equal to or higher than a predetermined temperature (for example, 120 ° C. or higher).
- the warning generation unit 155 When it continues, the work implement 1 is determined to be abnormal (overheating), and a warning that it is overheating is generated.
- the warning generation unit 155 generates a warning when an abnormality such as a CAN communication abnormality, a fuel sensor disconnection abnormality, or a water temperature sensor disconnection abnormality occurs.
- the warning generation means 155 outputs a warning code N (warning type) in the same manner as the warning generation means 55 described above so that each warning (abnormality) can be identified when the warning is generated.
- the warning storage unit 156 is constituted by, for example, a non-volatile memory (for example, a flash memory) and stores information related to warning (warning information).
- the warning storage unit 156 stores at least a warning code N (warning type) of a warning in association with a time when the warning occurs.
- this warning storage means 156 has a storage table (referred to as a first storage table) for storing the contents of warning information separately for each warning code N. That is, the first storage table is assigned to each warning. Further, each first storage table is divided into an initial hour meter portion, an initial time portion, a final hour meter portion, and a final time portion.
- the initial hour meter unit accumulates time ( Hour meter) as warning information.
- the initial time portion is a portion that stores the time (occurrence time) when the warning is generated as warning information when the warning corresponding to the warning code N is generated for the first time after the work machine 1 is shipped from the manufacturer.
- the warning storage means 156 stores “100 hours”, which is the accumulated time when the first overheat warning is generated, in the initial hour meter unit corresponding to the overheat, and “2009 when the overheat occurs. “March 2” is stored in the initial time portion corresponding to overheating.
- the warning information stored in the initial hour meter portion may be referred to as initial cumulative time
- the warning information stored in the initial time portion may be referred to as initial occurrence time.
- the last hour meter unit is a part that stores the accumulated time (hour meter) at the time of warning as warning information when the latest warning occurs.
- the last time part is a part that stores the time when the latest warning occurs as warning information.
- “100 hours” that is the accumulated time is already stored in the final hour meter portion, and “March 2, 2009” that is the time is already stored in the final time portion.
- the warning storage unit 156 overwrites and stores “140 hours”, which is the accumulated time, in the final hour meter portion, and stores “July 6, 2009”, which is the time that occurred in the final time portion, as the final time portion. Overwrite and memorize. As a result, the warning information stored in the warning storage unit 156 changes from the state shown in FIG. 13A to the state shown in FIG. 13B.
- the warning information stored in the final time portion may be referred to as the latest accumulated time
- the warning information stored in the final time portion may be referred to as the latest occurrence time.
- the warning storage unit 156 stores four types of warning information (initial accumulated time, initial occurrence time, latest accumulated time, and latest occurrence time) in the first storage table determined for each warning type. Yes.
- the various warning information stored in the warning storage unit 156 is displayed when the display device 15 is set to the special display mode instead of the normal display mode described above. That is, the display device 15 can be operated as a display unit that displays warning information stored in the warning storage unit 156. Since the operation in the special display mode is the same as that in FIG.
- the warning code display screen it is possible to set which warning information of the first storage table set for each warning type is read from the warning storage means 156.
- the initial accumulated time (warning information stored in the initial hour meter unit) from the first storage table corresponding to the warning code N is displayed on the display device. 15 and the initial cumulative time can be displayed on the segment type display unit 41B.
- the initial occurrence time (warning information stored in the initial time portion) can be read from the first storage table corresponding to the warning code N, and the initial occurrence time is displayed on the segment type display unit 41B. A part (years) can be displayed. Next, when the second switch 51 is pressed, a part (month and day) of the initial occurrence time is displayed. In this way, each time the second switch 51 is pressed, the warning information can be read in order from the first storage table, and the warning information can be displayed on the segment type display unit 41B. Even after the initial occurrence time is read from the first storage table, the latest accumulated time and the latest occurrence time can be read each time the second switch 51 is pressed, and these are displayed on the segment type display unit 41B. be able to.
- each warning information is read from the first storage table.
- the warning code N is displayed on the warning code display screen
- the first storage table corresponding to the warning code N is displayed.
- the warning information may be read out in a lump and stored temporarily, and then the warning information may be displayed in order on the segment type display unit 41B each time the second switch 51 is pressed.
- warning deletion unit 157 logically deletes the warning information stored in the warning storage unit 156. As will be described later, the logically deleted warning information is processed as not existing in the warning storage unit 156. .
- the second switch 51 In order to activate the warning erasing means 157, the second switch 51 is pressed for a few seconds on the display device 15, and the display device 15 is set to the “history erase mode” in the “special display mode”. After the display device 15 is set to the history erasure mode, when the second switch 51 is pressed for a few seconds, the warning erasure unit 157 is activated. At this time, the second switch 51 becomes an erasure execution switch for executing erasure.
- the warning storage means 156 stores the initial cumulative time “100h”, the initial occurrence time “2/3/2009”, the latest cumulative time “140h”, the latest Assume that “6/7/2009”, which is the generation time, is stored.
- FIG. 14B when the warning erasing unit 157 is operated, all the warning information is deleted from the warning storage unit 156 (logical erasure) and cannot be displayed on the display device 15. .
- the warning information when the warning information is erased by the warning erasing unit 157, the erased warning information is handled as not in the warning storage unit 156, and the erased warning information cannot be read from the warning storage unit 156. .
- the warning information can be logically erased freely by the warning erasure unit 157, and the free space in the warning storage unit 156 (flash memory) can be increased by performing the logical erasure. This is useful when you want to increase free space.
- warning information that has been logically erased once is usually very difficult to retrieve.
- the warning information can be erased by the warning erasing means 157, but the erasure time when the warning information is erased by the warning erasing means 157 can be left by the erasure time storage means 158. It is said.
- the erase time storage means 158 is composed of, for example, a non-volatile memory (for example, flash memory) and stores the erase time when the warning information is erased.
- the erasure time storage unit 158 may be formed of the same non-volatile memory as the warning storage unit 156 or may be formed of a non-volatile memory different from the warning storage unit 156.
- the erasure time storage means 158 has a storage table (referred to as a second storage table) for storing the time when the warning information is deleted (erasure time).
- the erasing execution switch 51 is performed.
- the time (time) when the deletion execution switch 51 is pressed in the second storage table of the deletion time storage unit 158 “6/1/2009” is stored.
- the deletion execution switch 51 when the user or the like presses the deletion execution switch 51 on “July 10, 2009” and logically deletes all warning information stored in the warning storage unit 156 again, 2
- the erased “year”, erased “month”, and erased “day” are stored as the erase time.
- the accumulated time (hour meter) at the time of erasing may be stored as the erasing time.
- the user or the like operates the second switch 51 or the like to set the display device 15 to the history erasing mode, and then presses the erasing execution switch 51 to clear the warning. If all the warning information stored in the warning storage unit 156 is logically deleted by the unit 157, the accumulated time when the deletion execution switch 51 is pushed into the second storage table of the deletion time storage unit 158 is “2500”. "Time" is stored.
- the erasure time (for example, the date and the accumulated time) stored in the erasure time storage unit 158 may be displayed on the display device 15 or may be externally extracted using a personal computer or the like.
- the erase time may be displayed on the segment type display unit 41B by operating the first switch 50 or the second switch 51 connected to the display device 15, or a personal computer, a flash memory, or the like may be displayed on the main control device. 30 and the display device 15 may be connected so that the erase time can be read into a personal computer or flash memory.
- the means for logically erasing the erasure time (information in the second storage table) stored in the erasure time storage means 158 is not provided in the work machine, and the erasure time is logically erased by operating a device mounted on the work machine. It should be configured so that it cannot.
- the warning generation unit 155, the warning storage unit 156, the display unit 15, the warning deletion unit 157, and the deletion time when the warning information is deleted by the warning deletion unit 157 are stored. Erasing time storage means 158 is provided.
- the erasure time storage means 158 stores the time when the erasure is executed by the erasure execution switch (second switch 51) as the erasure time, so the user or the like deliberately warns by pressing the erasure execution switch. When information is erased (when erasing is executed) can be specified.
- the warning storage unit 156 may be modified as follows.
- the first storage table of the warning storage means 156 is divided into an initial hour meter unit, an initial time unit, a final hour meter unit, and a final time unit, as well as a post-erase hour meter unit, a post-erase time unit, a count unit, and a cumulative count unit. It has been.
- the after-erasure hour meter unit newly generates a warning when a warning is newly generated after the warning information is deleted from the warning storage unit 156 by the warning deletion unit 157 (after the deletion execution switch 51 is pressed). This is a portion for storing the accumulated time (hour meter) at the time of the warning as warning information.
- the post-erase time portion is a part for storing the time of occurrence of warning as warning information when a warning is newly generated after the warning information is deleted by the warning erasing means 157 (after the deletion execution switch 51 is pressed). For example, as shown in FIG. 16, after the warning information is erased, a new overheat occurs, the accumulated time at that time is 140 hours (140h), and the occurrence time is July 6, 2009. . At this time, the warning storage unit 156 stores the accumulated time “140 hours” in the post-erase hour meter unit corresponding to overheating, and overheats “July 6, 2009”, which is the time when overheating occurred. Store in the corresponding post-erase time portion. For convenience of explanation, the warning information stored in the hour meter portion after erasure may be referred to as an intermediate cumulative time, and the warning information stored in the time portion after erasure may be referred to as an intermediate occurrence time.
- the count part is a part for storing the number of times (number of occurrences) of warnings as warning information. For example, every time an overheat warning is repeatedly generated, the number of occurrences of the warning is counted up, and the warning storage unit 156 stores the number of occurrences by overwriting in the counting unit each time the number is counted up. As will be described later, the count unit is erased by the warning erasing unit 157. When the number of occurrences of the count unit is erased by the warning erasing unit 157, the number of occurrences becomes zero.
- the cumulative count unit is a part for storing the cumulative number of occurrences of warnings for the same warning after the work machine 1 is shipped from the manufacturer, and cannot be erased by the warning erasing means 157 (the number of occurrences of the cumulative counting unit is determined). Cannot be zero).
- the warning storage unit 156 overwrites and stores the number of occurrences in the cumulative count unit every time a warning occurs.
- the warning information stored in the count unit may be referred to as an intermediate occurrence count, and the warning information stored in the cumulative count unit may be referred to as an accumulated occurrence count.
- warning storage means 156 of the modified example eight types of warning information (initial cumulative time, initial occurrence time, intermediate cumulative time, intermediate occurrence time, latest cumulative time, latest occurrence are stored in the first storage table determined for each warning type. Time, intermediate occurrence count, cumulative occurrence count).
- the warning storage means 156 stores newly generated warning information after the deletion of the warning information, that is, the intermediate cumulative time and the intermediate generation time. If both are seen, it is possible to guess the warning that occurred in the past.
- the warning information is deleted as described above, a warning once generated is likely to occur again, so if the period between the warning that occurred again (warning after erasure) and the erasure time is close, The generated warning is considered to have occurred before the deletion.
- FIG. 17A when the warning information is deleted on “July 10, 2009”, “10/7/2009” which is the deletion time is stored in the deletion time storage means 158. Suppose that Then, as shown in FIG.
- the erase time stored in the erase time storage unit 158 and the intermediate generation time of the warning storage unit 156 are viewed, the erase time is “July 10, 2009”. Yes, it can be seen that the overheat occurrence time after erasure is “July 13, 2009”. Since the erasure time when the warning information is erased and the occurrence time when the warning occurred after the erasure are within one week, and both are relatively close, it is assumed that the warnings that occurred in the past are overheated be able to.
- warning information (intermediate cumulative time, intermediate generation time) generated after deletion may not be deleted by the warning deletion unit 157.
- the initial cumulative time is “100h”
- the initial occurrence time is “2/3/2009”
- the intermediate cumulative time is “140h”
- the intermediate occurrence time is “6”.
- / 7/2009 the latest accumulated time
- 140h the latest occurrence time
- 6/7/2009 the latest occurrence time
- the intermediate occurrence number 1
- the accumulated occurrence number 13 Even if the warning erasing means 157 is operated under the situation of 156, as shown in FIG. 18B, at least “140h” which is the intermediate cumulative time and “6/7/2009” which is the intermediate occurrence time. "May be held in the warning storage means 156.
- the warning information related to the warning generated after the deletion of the warning information is stored in the warning storage means 156.
- the warning storage unit 156 may store warning information or warning information about a warning that has occurred last. That is, when a plurality of warnings occur for the same warning after erasure, the warning storage unit 156 stores warning information regarding the earliest warning (first warning generated) after erasing, or after erasing, Warning information relating to the latest warning (last warning) is also stored in the warning storage unit 156. It should be noted that both the warning information related to the warning that occurred first and the warning information related to the warning that occurred last may be stored in the warning storage means 156, but either one may be stored.
- all warning information is erased by the warning erasure means 157, and the erasure time when all the warning information is erased is stored in the erasure time storage means 158.
- the warning erasure unit 157 can erase at least a part of the warning information, and the erasure time storage unit 158 can store the erase time deleted for each warning information.
- the warning erasing means 157 erases the warning information selected as will be described later from among the plurality of warning information.
- the display device 15 is set to the “history deletion mode” in the “special display mode”. Then, the second switch 51 or the like is pressed to display the warning code N to be deleted on the segment type display unit 41B (warning code selection screen).
- the warning code N (the warning code N to be deleted) displayed on the segment type display unit 41B is changed. That is, on the warning code selection screen, it is possible to set which first storage table of the plurality of first storage tables provided in the warning storage unit 156 is to be erased.
- the warning erasure unit 157 is activated.
- the warning erasing unit 157 is activated, all warning information in the first storage table corresponding to the warning code N set on the warning code selection screen is logically deleted. In this embodiment, as a matter of course, the first storage table corresponding to the warning code not selected on the warning code selection screen remains in the warning storage means 156 without being erased.
- the erase time storage means 158 stores the erase time for each warning code. That is, the erase time storage means 158 stores the erase time erased for each warning. As shown in FIG. 20, the erase time storage means 158 has a second storage table for storing the erase time for each warning code.
- the deletion time storage unit 158 includes a warning code corresponding to the deleted warning information, In association with the erasing time, “July 10, 2009” which is the erasing time is stored in the second storage table. That is, since the erase time storage means 158 stores the erase time for each warning code, it is possible to individually grasp which warning was erased when and when the erase time and the warning code are viewed.
- the warning erasure unit 157 may be configured to erase predetermined warning information instead of erasing all warning information or deleting warning information selected from a plurality of warning information.
- 21 to 24 show other working machines of the present invention. In this working machine as well, the overall construction of the working machine such as the traveling device 2 and the upper swing body 3 is the same as that described with reference to FIG.
- the display device 15 is the same as that described with reference to FIG. About the main control apparatus 30, description is abbreviate
- the main control device 30 includes warning generation means 255 and warning storage means 256.
- the warning generation means 255 is configured by a program or the like stored in the main control device 30.
- the warning generating means 255 the description of the same parts as the warning generating means 55 and 155 described above is omitted.
- the warning storage unit 256 the description of the same parts as the above-described warning storage units 56 and 156 is omitted.
- the storage table in the warning storage means 256 is divided into an initial hour meter part, an initial time part, an erased hour meter part, a post-erase time part, a final hour meter part, a final time part, a count part, and a cumulative count part. Warning information (initial accumulated time, initial occurrence time, intermediate accumulated time, intermediate occurrence time, latest accumulated time, latest occurrence time, intermediate occurrence number, accumulated occurrence number) is stored.
- the after-erasure hour meter section newly issues a warning after the warning information is pseudo-erased from the warning storage means 256 by the warning pseudo-erasing means 257 (after pressing an erase switch described later). This is a portion for storing the accumulated time (hour meter) at the time when a new warning is generated as warning information.
- the post-erase timing section warns the generation timing of a warning when a warning is newly generated after the warning information is pseudo-erased by the warning pseudo-erasing means 257 (after pressing an erase switch described later). It is a part that is stored as information.
- the warning storage unit 256 stores the accumulated time “140 hours” in the post-erase hour meter unit corresponding to overheating, and overheats “July 6, 2009”, which is the time when overheating occurred. Store in the corresponding post-erase time portion.
- the warning storage unit 256 overwrites and updates the accumulated time stored in the hour meter portion after erasure, and also overwrites the time stored in the time portion after erasure.
- the warning information stored in the hour meter portion after erasure may be referred to as an intermediate cumulative time
- the warning information stored in the time portion after erasure may be referred to as an intermediate occurrence time.
- the warning information stored in the warning storage means 256 is stored in the work machine 1 (main control device 30) shown in FIGS.
- a warning pseudo-erase means 257 for pseudo-erasing is provided.
- the warning pseudo erasure unit 257 is configured by a program stored in the main control device 30. Hereinafter, the warning pseudo-erasing means 257 will be described in detail.
- the warning pseudo erasure unit 257 does not erase the warning information in the warning storage unit 256 by logically deleting the warning information stored in the warning storage unit 256, but merely makes it appear as if the warning information has been deleted. In reality, the warning information in the warning storage means 256 is processed so that it can be easily taken out without being erased.
- the warning pseudo-erasure unit 257 makes it possible to display the warning information before the pseudo-erasure on the display device 15 so that the warning information stored in the warning storage unit 256 is saved. Thus, the warning information after pseudo erasure is not displayed on the display device 15 so that the warning information stored in the warning storage means 256 is displayed as if it was erased.
- the warning pseudo-erasing unit 257 can be operated (activated) by performing the following processing.
- a pseudo erasure designation unit 60, a flag setting unit 61, and a non-display command unit 262, which will be described later, are configured by a control program or the like.
- the display device 15 enters the “special display mode” and then enters the “history deletion mode”. If the second switch 51 is pressed for a few seconds after the display device 15 is set to the history erasure mode, the warning pseudo erasure means 257 is activated. At this time, the second switch 51 serves as an erase switch for performing pseudo erase.
- the pseudo-erasure time storage unit 258 provided in the warning pseudo-erasure means 257 performs the pseudo-erasure when the erase switch 51 is pushed.
- the start time is stored in the warning storage means 256 so as not to be erased.
- the pseudo-erasure designation unit 260 when the second pseudo switch 51 is pressed to activate the warning pseudo-erasure unit 257, the pseudo-erasure designation unit 260 provided in the warning pseudo-erase unit 257 designates warning information to be automatically pseudo-erased. Specifically, when the erase switch 51 is pressed, the pseudo erasure designation unit 260, among the warning information stored in the warning storage unit 256, the intermediate cumulative time other than the initial cumulative time, the initial occurrence time, and the cumulative number of occurrences. The intermediate occurrence time, the latest accumulated time, the latest occurrence time, and the number of intermediate occurrences are automatically designated as pseudo erase.
- the initial cumulative time is “100h”
- the initial occurrence time is “2/3/2009”
- the intermediate cumulative time is “140h”
- the intermediate occurrence time is “6”. / 7/2009 “, the latest accumulated time” 140h “, the latest occurrence time” 6/7/2009 “, the intermediate occurrence number” 1 ", and the accumulated occurrence number” 13 "
- the pseudo erasure designation unit 260 has an intermediate cumulative time “140h”, an intermediate generation time “6/7/2009”, and a latest cumulative time “140h”.
- the latest occurrence time “6/7/2009” and the intermediate occurrence frequency “1 time” are the targets of pseudo-erasure.
- the pseudo erasure designation unit 260 does not set warning information to be pseudo erased for each warning type (designates warning information to be pseudo erased for each storage table), but exists in all storage tables. Pseudo erasure is set for intermediate accumulation time, intermediate occurrence time, latest accumulation time, latest occurrence time, and number of intermediate occurrences.
- warning information (intermediate cumulative time, intermediate occurrence time, latest cumulative time, latest occurrence time, intermediate occurrence count) for which pseudo-erasure is designated by the flag setting unit 261 provided in the warning pseudo-erasure means 257
- a pseudo erase flag F indicating that pseudo erase is designated is set.
- the flag setting unit 261 associates the warning information set by the pseudo erasure designation unit 260 with the pseudo erasure flag F, and then stores it in the warning storage unit 256 (storage table). The warning information with the pseudo erase flag F is saved.
- the warning pseudo erasure means 257 is activated when the warning information is displayed in the special display mode.
- the warning pseudo-erasing unit 257 is activated.
- pseudo erasure is not performed by the pseudo erasure means 57, warning information is displayed in order by pressing the second switch 51 in order, but the pseudo erasure flag F is set by the flag setting unit 261.
- the non-display command unit 262 provided in the pseudo erase unit 57 instructs the display device 15 not to display the warning information for which the pseudo erase flag F is set, and the warning information is not displayed. .
- the non-display command unit 262 displays the warning information in which the pseudo erasure flag F is set among the warning information stored in the warning storage unit 256. Even if the display device 15 reads the warning information set with the pseudo-erasure flag F so that the warning information set with the pseudo-erasure flag F cannot be displayed on the display device 15 or is not read into the display device 15. The warning information for which the deletion flag F is set is not displayed.
- the initial cumulative time, initial generation time, intermediate cumulative time, intermediate generation time, latest cumulative time, latest generation time, intermediate generation number the cumulative number of occurrences can be displayed on the display device 15, as shown in FIG. 23 (b), after the pseudo erase, the intermediate cumulative time, the intermediate occurrence time, and the latest cumulative are set for the pseudo erase flag F.
- the non-display command unit 262 does not display the time, the latest occurrence time, and the number of intermediate occurrences. When the display device 15 is viewed, it appears as if the warning information has been deleted.
- the warning pseudo-erasing unit 257 for pseudo-erasing the warning information since the warning pseudo-erasing unit 257 for pseudo-erasing the warning information is provided, for example, the user or the like can set the display device 15 in the “special display mode”.
- the warning information is erased by the history erasing mode in the “erased history erasing mode”
- the warning information erased by the history erasing mode is not displayed on the display device 15, and at first glance, the warning information in the warning storage unit 256 is erased. I can think it was possible.
- the erased warning information is stored in the warning storage unit 256 and is not erased, so that the warning information can be extracted.
- the warning pseudo-erasure unit 257 does not perform logical or physical deletion of the warning information, so that the warning information stored in the warning storage unit 256 can be easily extracted.
- the warning information can be extracted (output) by any method.
- a personal computer or the like can be connected to the main control unit 30 or the display device 15, and the warning information is stored in the warning storage unit 256 using them.
- the warning information may be extracted to the outside, or may be extracted by connecting an external flash memory to the main control unit 30 or the display device 15.
- warning 21 to 24 includes a warning generation unit 255, a warning storage unit 256, and a warning pseudo deletion unit 257. Therefore, the warning information deleted by the warning pseudo deletion unit 257 is not deleted. Is stored in the warning storage means 256 and the warning information can be taken out, so that it is possible to prevent the user from intentionally hiding the warning, and the work machine is used in a situation where the warning is issued. Can be suppressed.
- abnormality information is used by using an erasing function provided in the display device in order to hide that the user is using the work machine with a great load. If it is deleted, the warning information is practically difficult to retrieve, and there is a possibility that the user will not know that he / she was using the work machine with a heavy load.
- the operations shown in FIGS. The machine can prevent this.
- the warning pseudo-erasure unit 257 includes a pseudo-erasure time storage unit 58 that stores a time when the pseudo-erasure is performed by the warning pseudo-erasure unit 257, so that the time when the warning information is attempted to be erased is displayed. Can be identified. Further, the warning pseudo-erasing unit 257 indicates that a pseudo-erasure designation unit 260 that designates warning information to be pseudo-erased, and that pseudo-erase is designated for the warning information designated by the pseudo-erasure designation unit 260. A flag setting unit 261 for setting the pseudo-erasure flag F; and a non-display command unit 262 for instructing the display device 15 not to display the warning information for which the pseudo-erasure flag F is set by the flag setting unit 261. Yes. Therefore, the pseudo-erasure process can be easily performed on the warning information stored in the warning storage unit 256.
- warning information among a plurality of warning information is automatically set by the pseudo deletion specifying unit 260.
- Warning information to be pseudo-erased may be set.
- FIG. 24 shows a list of warning information displayed on the display device 15. As shown in FIG. 24, when performing pseudo erase on the display device 15, the pseudo erase designation unit 260 displays each warning information and sets whether or not to erase at a position corresponding to the warning information.
- the setting column A to be displayed can be displayed.
- the user can select the warning information to be deleted by operating the second switch 51 or the like and attaching the symbol “L” to the setting field A displayed on the screen of the display device 15.
- the flag setting unit 261 adds a setting flag F to the warning information selected to be deleted. Are stored in the warning storage means 256.
- the warning generation unit 255, the warning storage unit 256, and the warning pseudo deletion unit 257 are provided in the main control device 30, but the warning generation unit 255, the warning storage unit 256, and the warning pseudo deletion unit 257 include It may be provided anywhere on the work machine 1.
- the warning generation unit 255, the warning storage unit 256, and the warning pseudo erasing unit 257 may be provided in the display device 15, or may be provided in any of the control devices that control the work machine 1. .
- the display device 15 includes the LED display unit 41A, the segment type display unit 41B, and the pointer type display unit 41C. It may be provided with a liquid crystal display unit for display, or may display information in other display formats. In the embodiment described above, after pseudo-erasure, as shown in FIG. 23B, only the warning information that has been pseudo-erased is not displayed on the display device 15. “No history” may be displayed to notify the user as if the history has been deleted.
- the warning generation means 55 and 155, the warning storage means 56 and 156, the warning deletion means 57 and 157, and the deletion timing storage means 58 and 158 are provided in the main control device 30, but these are displayed on the display device 15. Or may be provided in any of the control devices mounted on the work machine 1.
- the display device 15 includes the LED display unit 41A, the segment type display unit 41B, and the pointer type display unit 41C. It may be provided with a liquid crystal display unit for display, or may display information in other display formats.
- Display device (display means) 30 Main controller 31 Control unit 55, 155, 255 Warning generating means 56, 156, 256 Warning storage means
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Abstract
Description
特許文献1の作業機の表示装置では、作業機の運転において、作業機に異常が発生するとその異常に関する異常情報をコントローラに記憶し、異常情報を当該表示装置を介して見ることができるようになっている。このように、作業機の表示装置では、異常情報を記憶することができる一方で表示装置に記憶された異常情報を消去することも可能である。
仮にユーザが作業機を多大な負荷で使用していることを隠すために、表示装置に具備された消去機能を用いて異常情報(警告情報)を消去してしまうと、作業機にどのような負荷を掛けていたか分からなくなる虞がある。
また、本発明は上記問題点に鑑み、警告情報の発生の有無を簡単に把握することができると共に警告情報の消去時期を簡単に特定することができる作業機を提供することを目的としたものである。
請求項1に係る発明では、異常であるか否かを判断し且つ異常であるときに警告を発生する警告発生手段と、前記警告に関する警告情報を記憶する警告記憶手段と、前記警告記憶手段に記憶された警告情報を表示する表示手段と、前記警告情報を消去する警告消去手段とを備え、前記警告記憶手段は、前記警告消去手段によって消去後に発生した警告に関する警告情報を記憶するように構成されていることを特徴とする。
請求項3に係る発明では、異常であるか否かを判断し且つ異常であるときに警告を発生する警告発生手段と、前記警告に関する警告情報を記憶する警告記憶手段と、前記警告記憶手段に記憶された警告情報を表示する表示手段と、前記警告情報を消去する警告消去手段とを備え、前記警告消去手段によって警告情報を消去した消去時期を記憶する消去時期記憶手段を備えていることを特徴とする。
請求項5に係る発明では、前記警告記憶手段は、前記警告消去手段によって消去後に発生した警告に関する警告情報を記憶するように構成されていることを特徴とする。
請求項7に係る発明では、前記警告記憶手段は、警告情報の消去後に発生した警告のうち、最後に発生した警告に関する警告情報を記憶することを特徴とする。
請求項8に係る発明では、消去後の警告情報は、消去不能となっていることを特徴とする。
請求項1に係る発明によれば、警告情報が消去されたということを把握することが可能であり、作業機内で発生した警告の発生状況も把握し易くなる。
請求項2に係る発明によれば、警告記憶手段に残っている警告情報が、消去実行スイッチによって行って消去を実行後に発生したものであると明確に知ることができる。
請求項4に係る発明によれば、消去実行スイッチによって消去を実行した時を特定することができる。
請求項5に係る発明によれば、消去後に発生した警告情報を的確に把握することができる。
請求項7に係る発明によれば、消去後に最後に発生した警告情報を的確に把握することができる。
請求項8に係る発明によれば、消去後に新たに発生した警告情報については消去できないため、意図的に消去した後の情報を確実に残すことができる。
図10は本発明の作業機の全体図を示している。図10に示すように、本発明において作業機はバックホーとしているが、トラクタであってもコンバインであっても、その他の作業を行うものであってもよい。
まず、作業機の全体構成から説明する。
走行装置2は、ゴム製覆帯を有する左右一対の走行体4を備え、両走行体4を走行モータMで動作するようにしたクローラ式走行装置が採用されている。また、該走行装置2の前部にはドーザ5が設けられている。
図1は、作業機における制御システムのブロック図を示したものである。
図1に示すように、作業機における制御システムは、主に作業機の制御を行うメイン制御装置30と、このメイン制御装置30とは別に配置された表示装置15とが備えられている。メイン制御装置30と表示装置15とは、Controller Area Network(CAN通信)などの車両用通信ネットワークNを介してデータの送受信が行えるようになっている。なお、車両用通信ネットワークは、メイン制御装置30と従制御部31とがデータの送受信が行えるものであれば何でもよく、FlexRay(フレックスレイ)であっても、その他のネットワークであってもよい。
走行2速制御は、走行装置2を高速と低速とに切り換える走行2速スイッチ32からのオン又はオフの入力信号に基づいて、走行装置2を高速と低速とに切り換える制御である。アンロード切換制御は、運転席9の側方に設けられたレバーロックスイッチ33からのオン又はオフの入力信号に基づいて、ポンプから吐出された作動油を制御弁に供給可能と供給不能とに切り換える制御である。スタータ切換制御は、スタータスイッチ34からのオン又はオフの入力信号に基づいてスタータリレー35を切り換える制御である。盗難防止制御は、エンジンを始動するエンジンキーに内蔵されたIDコードと、当該メイン制御装置30に内蔵されたIDコードとの照合が成立したときにスタータリレー35をオフからオンにすることを許可し、照合が不成立であるときにスタータリレー35をオフからオンにすることを許可しない制御である。盗難防止手段は、新しいエンジンキーのIDコードを当該メイン制御装置30に登録する登録機能が設けられている。なお、メイン制御装置30は、各種装置を制御するものであればよく、例示した制御に限定されない。
具体的には、このメイン制御装置30には、エンジン回転数を検出するエンジン回転センサ(エンジン回転検出器)40aと、水温を検出する水温センサ(水温検出器)40bと、燃料(残量)を検出する燃料センサ(燃料検出器)40cとが接続されている。即ち、メイン制御装置30には、エンジン回転センサ40a、水温センサ40b、燃料センサ40cなどの検出器40で検出した状態が入力されるようになっている。なお、メイン制御装置30には、エンジンを始動するエンジンキーのIDコード、バッテリーの電圧なども入力されるようになっている。
図2に示すように、表示装置15は、様々な情報を表示可能な表示部41と、表示部41を制御する制御部31とを備えている。
具体的には、表示装置15を正面視すると、当該表示装置15の左側には12個の単一式LED表示部41Aが設けられ、下側にはセグメント式表示部41Bが設けられ、右側には上下に並ぶ2つの指針式表示部41Cが設けられている。
詳しくは、表示装置15に設けられたLED表示部41Aには、走行用LED表示部41A1、登録用LED表示部41A2、抜き忘れLED表示部41A3、燃料用LED表示部41A4、水温用LED表示部41A5、警告用LED表示部41A6などがある。
詳しくは、このセグメント式表示部41Bは、7つのセグメント42により構成されたセグメント群43(7セグメントという)が左右方向に5個配置され、7セグメント43の周りに、文字(Y、M、D、AM、PM)や記号(△)で構成された9つのセグメントが配置され、7セグメント43の間にドット(:、.)から構成された4つのセグメントが配置されることにより構成されている。7セグメント43は、数字、文字、記号等を表示するためのものであり、7セグメント43の周りに配置された文字や記号のセグメントは、画面操作を指示したり、どのような画面であるか分かるように補足するものである。
図3に示すように、エンジンキーにてシリンダを回し、表示装置15に電源を供給した後に、表示装置15に接続された第1スイッチ50を押すと、セグメント式表示部41Bにはアワーメータ(累積時間)が表示される。
なお、アワーメータとは、作業機1を製造する製造メーカが作業機1を出荷後、作業機1の駆動した累積時間のことであり、メイン制御装置30又は表示装置15に記憶されるようになっている。
セグメント式表示部41Bに時刻が表示されている状態で、第2スイッチ51を押すと、セグメント式表示部41Bにはエンジン回転数が表示される。さらに、セグメント式表示部41Bにエンジン回転数が表示されている状態で、第2スイッチ51を押すと、セグメント式表示部41Bには、作業機1に発生している警告の警告コードNが表示される。なお、作業機1に複数の警告が発生している場合は、警告コードNが順番に表示される。警告が発生していない場合は、警告コードNは表示されない。なお、セグメント式表示部41Bの左側に表示された「E:」は、右側の数値が警告コードであることを示している。
図2に示すように、指針式表示部41Cは、回転中心部を中心として所定角度で回動する針部45と、針部45と重なるようにゲージ表示部46とを備えていて、針部45の回動し、ゲージ表示部46に対する針部45の先端部の位置によって様々な情報を表示するものである。
燃料用指針式表示部41C1は、針部45の先端がゲージ表示部46の上端を指し示したときは燃料が満タンであることを示し、ゲージ表示部46の下端を示したときは燃料が不足(無くなっている)であることを示す。
表示装置15の制御部31は、メイン制御装置30と当該表示装置15とのデータ(情報)の送受信を行ったり、入力された様々な情報(検出情報、警告情報)を表示部41に表示させるための制御を行うものであり、CPUや汎用IC等から構成されている。また、表示装置15における「通常表示モード」や「特別表示モード」は、表示装置15の制御部31に組み込まれた制御プログラムにて実行するものであっても、メイン制御装置30に組み込まれた制御プログラムであってもよい。
メイン制御装置30は、警告発生手段55と、警告記憶手段56と、警告消去手段57とを備えている。警告発生手段55及び警告消去手段57は、メイン制御装置30内に格納されたプログラム等で構成されている。
警告発生手段55は、検出器40によって検出された検出情報などに基づいて作業機1が異常であるか否かを判断すると共に、異常であると判断したときには警告を発生するものである。
また、警告発生手段55は、CAN通信異常、燃料センサ断線異常、水温センサ断線異常など異常が発生したときに警告を発生する。
燃料センサ断線異常とは、燃料センサ40cで検出される抵抗値が所定以上であって非常に抵抗値が大きく当該燃料センサ40cとメイン制御装置30とが断線であると考えられる異常である。水温センサ断線異常とは、水温センサ40bで検出される抵抗値が所定以上であって非常に抵抗値が大きく当該水温センサ40bとメイン制御装置30とが断線であると考えられる異常である。
例えば、CAN通信異常に関する警告コードNは「01」とされ、オーバーヒートに関する警告コードNは「15」とされ、燃料センサ断線異常に関する警告コードNは「17」とされ、水温センサ断線異常に関する警告コードNは「18」とされている。
つまり、警告発生手段55は、メイン制御装置30に入力される様々な情報を用いて作業機1が異常であるか否かを判断し、異常であると判断した場合には、その異常に関する警告に対応した警告コードNを発生する。なお、警告発生手段55によって発生する警告は、当然の如く、上述した例に限定されず、どのような警告であってもよい。
さらに、各記憶テーブルは、初期アワーメータ部、初期時期部、消去後アワーメータ部、消去後時期部、最終アワーメータ部、最終時期部、カウント部、累積カウント部とに分けられる。
このとき、警告記憶手段56は、初めてオーバーヒートの警告が発生したときの累積時間である「100時間」を、オーバーヒートに対応する初期アワーメータ部に記憶させると共に、オーバーヒートの発生時期である「2009年3月2日」をオーバーヒートに対応する初期時期部に記憶させる。説明の便宜上、初期アワーメータ部に記憶した警告情報を初期累積時間、初期時期部に記憶した警告情報を初期発生時期ということがある。
消去後時期部は、警告消去手段57によって警告情報が消去後(後述する消去実行スイッチを押した後)、新たに警告が発生したときに、警告の発生時期を警告情報として記憶する部分である。
このとき、警告記憶手段56は、累積時間である「140時間」をオーバーヒートに対応する消去後アワーメータ部に記憶させると共に、オーバーヒートが発生した時期である「2009年7月6日」をオーバーヒートに対応する消去後時期部に記憶させる。
図6(a)に示すように、例えば、既に最終アワーメータ部に累積時間である「100時間」が記憶され、且つ、既に最終時期部に時期である「2009年3月2日」が記憶されている場合において、その後、2009年7月6日に同じ警告コードNにおいて警告が発生し、そのときの累積時間が140時間であったとする。
なお、説明の便宜上、最終時期部に記憶した警告情報を最新累積時間、最終時期部に記憶した警告情報を最新発生時期ということがある。
さて、警告記憶手段56にて記憶された様々な警告情報は、表示装置15を上述した通常表示モードではなく特別表示モードにすると表示することができる。つまり、表示装置15を、警告記憶手段56に記憶された警告情報を表示する表示手段として動作させることができる。
そして、表示装置15を特別表示モードにした後、第2スイッチ51を数秒間長押し、表示装置15を「特別表示モード」の中の「警告来歴モード」にする。警告来歴モードにした後、第2スイッチ51を長押しすると、まず、セグメント式表示部41Bに警告情報の警告コードNが表示される(警告コード表示画面)。
そして、警告コード表示画面が表示されている状態で第2スイッチ51を押すと、警告コードNに対応する記憶テーブルから中間発生回数(カウント部に記憶した警告情報)が表示装置15に読み出され、セグメント式表示部41Bに中間発生回数(カウント部に記憶した警告情報)が表示される。
さらに、第2スイッチ51を押すと、警告コードNに対応する記憶テーブルから初期発生時期(初期時期部に記憶した警告情報)が読み出され、セグメント式表示部41Bに初期発生時期の一部(年数)が表示され、次に、第2スイッチ51を押すと、初期発生時期の一部(月日)が表示される。このように、第2スイッチ51を押す毎に記憶テーブルから警告情報が順番に読み出され、セグメント式表示部41Bに表示されることになる。
なお、第2スイッチ51を押す毎に各警告情報を記憶テーブルから読み出すとしているが、警告コード表示画面にて警告コードNを表示したときに、当該警告コードNに対応する記憶テーブルの警告情報を一括して読み出し、一時的に保存して、その後、第2スイッチ51を押すたびに順に警告情報をセグメント式表示部41Bに表示してもよい。
警告消去手段57は、警告記憶手段56に記憶された警告情報を論理消去するものであって、後述するように、論理消去された警告情報は警告記憶手段56内に存在しないものとして処理される。
つまり、警告消去手段57によって警告情報を消去すると、消去された警告情報は、警告記憶手段56内に無いと扱われ、消去された警告情報は、警告記憶手段56から読み出すことができないようになり、表示装置15によって表示できなくなる。
一方、本発明では、消去後アワーメータ部に保存されている警告情報(中間累積時間)、消去後時期部に保存されている警告情報(中間発生時期)をみれば、少なくとも、消去作業を行ったことが把握できると共に、消去後に発生した警告情報から、過去に発生した警告を推測することができる。一度発生した警告は再び発生し易いため、消去後アワーメータ部や消去後時期部に対応する警告コードNをみれば、消去前の警告が何であるか推測することも可能である。
警告発生手段155は、上述した警告発生手段55と同様に、検出器40によって検出された検出情報などに基づいて作業機1が異常であるか否かを判断すると共に、異常であると判断したときには警告を発生する。例えば、警告発生手段155は、検出されたエンジン回転数が所定回転以上(例えば、700rpm)であり且つ検出された水温が所定温度以上(例えば、120℃以上)で、さらに、所定時間以上(例えば、1秒以上)続いたときに、作業機1が異常(オーバーヒート)であると判断し、オーバーヒートであるという警告を発生させる。また、警告発生手段155は、CAN通信異常、燃料センサ断線異常、水温センサ断線異常など異常が発生したときに警告を発生する。
警告記憶手段156も上述した警告記憶手段56と同様に、例えば、不揮発性メモリ(例えば、フラッシュメモリ)等から構成され、警告に関する情報(警告情報)を記憶する。この警告記憶手段156は、少なくとも警告の警告コードN(警告種別)と警告が発生したときの時間とを対応させて記憶するようになっている。
このとき、警告記憶手段156は、初めてオーバーヒートの警告が発生したときの累積時間である「100時間」を、オーバーヒートに対応する初期アワーメータ部に記憶させると共に、オーバーヒートの発生時期である「2009年3月2日」をオーバーヒートに対応する初期時期部に記憶させる。説明の便宜上、初期アワーメータ部に記憶した警告情報を初期累積時間、初期時期部に記憶した警告情報を初期発生時期ということがある。
図13(a)に示すように、例えば、既に最終アワーメータ部に累積時間である「100時間」が記憶され、且つ、既に最終時期部に時期である「2009年3月2日」が記憶されている場合において、その後、2009年7月6日に同じ警告コードNにおいて警告が発生し、そのときの累積時間が140時間であったとする。
なお、説明の便宜上、最終時期部に記憶した警告情報を最新累積時間、最終時期部に記憶した警告情報を最新発生時期ということがある。
さて、警告記憶手段156にて記憶された様々な警告情報は、表示装置15を上述した通常表示モードではなく特別表示モードにすると表示するようになっている。つまり、表示装置15を、警告記憶手段156に記憶された警告情報を表示する表示手段として動作させることができる。特別表示モードの操作については図7と同様であるため説明を省略する。
警告消去手段157は、警告記憶手段156に記憶された警告情報を論理消去するものであって、後述するように、論理消去された警告情報は警告記憶手段156内に存在しないものとして処理される。
例えば、図14(a)に示すように、警告記憶手段156に、初期累積時間である「100h」、初期発生時期である「2/3/2009」、最新累積時間である「140h」、最新発生時期である「6/7/2009」が記憶されていたとする。ここで、図14(b)に示すように、警告消去手段157を動作させると、警告記憶手段156には全ての警告情報が削除され(論理消去)、表示装置15でも表示することができなくなる。
上述したように、この作業機1では、警告消去手段157によって警告情報を自由に論理消去することができ、論理消去を行うことによって警告記憶手段156(フラッシュメモリ)における空き容量を増加させることができ、空き容量を増やしたいときには便利である。一方で、一度、論理消去してしまった警告情報は、通常では取り出すことが非常に困難である。
そこで、本発明の作業機では、警告消去手段157によって警告情報を消去できるという構成でありながら、警告消去手段157によって警告情報を消去した消去時期を消去時期記憶手段158によって残すことができるという構成としている。
図15に示すように、この消去時期記憶手段158は、警告情報を消去した時期(消去時期)を記憶する記憶テーブル(第2記憶テーブルという)を有している。
例えば、累積時間が「2500時間(2500h)」であるときに、ユーザ等が第2スイッチ51等を操作して、表示装置15を来歴消去モードにした後、消去実行スイッチ51を押して、警告消去手段157によって警告記憶手段156に記憶されている全ての警告情報を論理消去したとすると、消去時期記憶手段158の第2記憶テーブルに消去実行スイッチ51を押した時点での累積時間である「2500時間」が記憶される。
上述したように、本発明の作業機によれば、警告発生手段155と、警告記憶手段156と、表示手段15と警告消去手段157と、警告消去手段157によって警告情報を消去した消去時期を記憶する消去時期記憶手段158を備えている。
特に、消去時期記憶手段158は、消去実行スイッチ(第2スイッチ51)にて消去を実行した時を消去時期として記憶するようになっているため、ユーザ等が消去実行スイッチを押して意図的に警告情報を消去した時(消去を実行した時)を特定することができる。
警告記憶手段156の第1記憶テーブルは、初期アワーメータ部、初期時期部、最終アワーメータ部、最終時期部に加え、消去後アワーメータ部、消去後時期部、カウント部、累積カウント部に分けられている。
消去後アワーメータ部は、警告消去手段157によって警告情報が当該警告記憶手段156から消去された後(消去実行スイッチ51を押した後)において、新たに警告が発生したときに、新たに警告発生した時点での累積時間(アワーメータ)を警告情報として記憶する部分である。
例えば、図16に示すように、警告情報が消去された後、新たにオーバーヒートが発生し、そのときの累積時間が140時間(140h)で、発生時期が2009年7月6日であるとする。このとき、警告記憶手段156は、累積時間である「140時間」をオーバーヒートに対応する消去後アワーメータ部に記憶させると共に、オーバーヒートが発生した時期である「2009年7月6日」をオーバーヒートに対応する消去後時期部に記憶させる。説明の便宜上、消去後アワーメータ部に記憶した警告情報を中間累積時間、消去後時期部に記憶した警告情報を中間発生時期ということがある。
特に、警告記憶手段156には、警告情報の消去後に新たに発生した警告情報、即ち、中間累積時間と中間発生時期とを保存することとなっているため、これら消去後の警告情報と消去時期との両方を見れば、過去に発生した警告を推測することが可能である。
例えば、図17(a)に示すように、「2009年7月10日」に警告情報が消去されると、消去時期記憶手段158に消去時期である「10/7/2009」が記憶されているとする。そして、図17(b)に示すように、警告情報が消去された後、「2009年7月13日」にオーバーヒートが発生すると、オーバーヒートの警告情報を保存する警告記憶手段156の消去後時期部に、オーバーヒートの発生時期(中間発生時期)である「13/7/2009」が記憶される。
例えば、図18(a)に示すように、初期累積時間である「100h」、初期発生時期である「2/3/2009」、中間累積時間である「140h」、中間発生時期である「6/7/2009」、最新累積時間である「140h」、最新発生時期である「6/7/2009」、中間発生回数である「1回」、累積発生回数である「13」が警告記憶手段156されている状況下で、警告消去手段157を動作させたとしても、図18(b)に示すように、少なくとも中間累積時間である「140h」や中間発生時期である「6/7/2009」は、警告記憶手段156に保持するようにしてもよい。
上述したように、警告記憶手段156に警告情報の消去後に発生した警告に関する警告情報を記憶するようにしているが、消去後に発生した警告情報のうち、少なくとも消去後に一番最初に発生した警告に関する警告情報、又は、最後に発生した警告に関する警告情報を警告記憶手段156に記憶させるとよい。即ち、消去後に同じ警告に関して複数回警告が発生した場合、消去後、最も早く発生した警告(一番最初に発生した警告)に関する警告情報を警告記憶手段156に記憶させたり、又は、消去後、最も遅く発生した警告(最後に発生した警告)に関する警告情報も警告記憶手段156に記憶させる。なお、一番最初に発生した警告に関する警告情報と、最後に発生した警告に関する警告情報との両方を警告記憶手段156に記憶させてもよいがどちらか一方であってもよい。
そして、警告コード選択画面が表示されている状態から第2スイッチ(消去実行スイッチ)を数秒間長押しすると、警告消去手段157が起動する。警告消去手段157が起動すると、警告コード選択画面にて設定した警告コードNに対応する第1記憶テーブルの警告情報が全て論理消去される。この実施形態では、当然の如く、警告コード選択画面で選択されなかった警告コードに対応する第1記憶テーブルは消去されずに警告記憶手段156に残ることになる。
図20に示すように、消去時期記憶手段158は、警告コード毎に消去時期を記憶するための第2記憶テーブルを有している。
即ち、消去時期記憶手段158は、警告コード毎に消去した時期を記憶しているため、消去時期と警告コードとを見れば、どの警告について何時消去を行ったか個別に把握することができる。
図21~24は、本発明の他の作業機を示している。なお、この作業機においても、走行装置2や上部の旋回体3などの作業機の全体構成は、図10で説明したものと同じであるため説明を省略する。また、表示装置15についても図2で説明したものと同じであるため説明を省略する。メイン制御装置30については、上述した実施形態と同様の部分は説明を省略し、異なる点を説明する。
また、消去後時期部は、警告疑似消去手段257によって警告情報が疑似的に消去された後(後述する消去スイッチを押した後)、新たに警告が発生したときに、警告の発生時期を警告情報として記憶する部分である。
このとき、警告記憶手段256は、累積時間である「140時間」をオーバーヒートに対応する消去後アワーメータ部に記憶させると共に、オーバーヒートが発生した時期である「2009年7月6日」をオーバーヒートに対応する消去後時期部に記憶させる。
警告記憶手段256には、数多くの警告情報が記憶されるようになっているが、図21~24に示した作業機1(メイン制御装置30)には、警告記憶手段256に記憶した警告情報を疑似的に消去する警告疑似消去手段257が具備されている。
以下、警告疑似消去手段257について詳しく説明する。
警告疑似消去手段257は、警告記憶手段256に記憶された警告情報を論理消去を行って警告記憶手段256内の警告情報を無くしてしまうのではなく、警告情報を消去したかのように見せかけるだけで、実態としては警告記憶手段256内の警告情報は消去せずに容易に取り出しができるように処理するものである。具体的には、警告疑似消去手段257は、疑似消去前の警告情報は表示装置15にて表示できるようにすることで警告記憶手段256に格納された警告情報が保存されていることを見せる一方で、疑似消去後の警告情報は表示装置15にて表示できないようにすることで警告記憶手段256に格納された警告情報がいかにも消去されたかのように見せる処理を行う。
第2スイッチ51を数秒間長押しすると、表示装置15が「特別表示モード」となったうえで「来歴消去モード」になる。表示装置15を来歴消去モードにした後、第2スイッチ51を数秒間長押しすると、警告疑似消去手段257が起動する。このとき、第2スイッチ51は、疑似消去を行うための消去スイッチとなる。そして、消去スイッチ51を押して警告疑似消去手段257が起動すると、当該警告疑似消去手段257に具備された疑似消去時期記憶部258によって、消去スイッチ51を押した時期、即ち、疑似的に消去を行った時期(開始時期)を警告記憶手段256に消去不能に記憶する。
上述したように、表示装置15を「特別表示モード」の中の「警告来歴モード」にしたとき、警告疑似消去手段257が起動する。ここで、疑似消去手段57によって疑似消去を行っていない場合は、第2スイッチ51を順に押すと順番に警告情報が表示されるようになっているが、フラグ設定部261によって疑似消去フラグFが設定されると、疑似消去手段57に具備された非表示指令部262によって、疑似消去フラグFが設定された警告情報に対し表示装置15にて表示しないように指令され、警告情報が表示されなくなる。
なお、警告疑似消去手段257では、警告情報の論理消去や物理消去を行わないため、警告記憶手段256に保存されている警告情報は容易に取り出すことが可能である。警告情報の取り出し(出力)は、どのような方法で行ってもよく、例えば、パーソナルコンピュータなどをメイン制御部30や表示装置15に接続できるようにして、これらを用いて、警告記憶手段256の警告情報を外部に取り出せるようにしてもよいし、外部のフラッシュメモリをメイン制御部30や表示装置15に接続して取り出しても良い。
さらに、警告疑似消去手段257は、疑似消去する警告情報を指定する疑似消去指定部260と、この疑似消去指定部260によって疑似消去を指定された警告情報に対し疑似消去が指定されたことを示す疑似消去フラグFを設定するフラグ設定部261と、フラグ設定部261によって疑似消去フラグFが設定された警告情報に対し表示装置15にて表示しないように指令する非表示指令部262とを備えている。そのため、警告記憶手段256に保存されている警告情報に対して簡単に疑似消去の処理を行うことができる。
図24は、表示装置15に表示された警告情報の一覧表を示したものである。図24に示すように、表示装置15にて疑似消去を行う際に、疑似消去指定部260によって、各警告情報を表示すると共に当該警告情報に対応する位置に消去を行うか行わないかを設定する設定欄Aを表示できるようにしておく。
上述した実施形態では、警告発生手段255と警告記憶手段256と警告疑似消去手段257とをメイン制御装置30に設けていたが、警告発生手段255、警告記憶手段256、警告疑似消去手段257は、作業機1のどこに設けても良い。例えば、警告発生手段255、警告記憶手段256、警告疑似消去手段257とを表示装置15に設けてもよいし、これらを、作業機1を制御する制御装置のいずれかに設けるようにしてもよい。
上述した実施形態では、疑似消去後は、図23(b)に示したように、疑似消去された警告情報のみ、表示装置15によって表示しないようにしているが、これに代え、表示装置15に「来歴がありません」と表示して、来歴が消去されたかのように知らせるようにしてもよい。
上述した実施形態では、警告発生手段55、155と警告記憶手段56、156と警告消去手段57、157と消去時期記憶手段58、158をメイン制御装置30に設けていたが、これらを表示装置15に設けてもよいし、作業機1に搭載した制御装置にいずれかに設けても良い。
30 メイン制御装置
31 制御部
55、155、255 警告発生手段
56、156、256 警告記憶手段
Claims (8)
- 異常であるか否かを判断し且つ異常であるときに警告を発生する警告発生手段と、前記警告に関する警告情報を記憶する警告記憶手段と、前記警告記憶手段に記憶された警告情報を表示する表示手段と、前記警告情報を消去する警告消去手段とを備え、
前記警告記憶手段は、前記警告消去手段によって消去後に発生した警告に関する警告情報を記憶するように構成されていることを特徴とする作業機。 - 前記表示手段は、前記警告情報を表示する表示装置で構成され、前記表示装置には警告消去手段にて警告情報を消去すべく消去を実行する消去実行スイッチが接続されており、
前記警告記憶手段は、前記消去実行スイッチにて消去が実行された後に発生した警告に関する警告情報を記憶することを特徴とする請求項1に記載の作業機。 - 異常であるか否かを判断し且つ異常であるときに警告を発生する警告発生手段と、前記警告に関する警告情報を記憶する警告記憶手段と、前記警告記憶手段に記憶された警告情報を表示する表示手段と、前記警告情報を消去する警告消去手段とを備え、
前記警告消去手段によって警告情報を消去した消去時期を記憶する消去時期記憶手段を備えていることを特徴とする作業機。 - 前記表示手段は、前記警告情報を表示する表示装置で構成され、前記表示装置には警告消去手段にて警告情報を消去すべく消去を実行する消去実行スイッチが具備されており、前記消去時期記憶手段は、前記消去実行スイッチにて消去が実行された時を消去時期として記憶することを特徴とする請求項3に記載の作業機。
- 前記警告記憶手段は、前記警告消去手段によって消去後に発生した警告に関する警告情報を記憶するように構成されていることを特徴とする請求項1~4のいずれかに記載の作業機。
- 前記警告記憶手段は、警告情報の消去後に発生した警告のうち、一番最初に発生した警告に関する警告情報を記憶することを特徴とする請求項1~4のいずれかに記載の作業機。
- 前記警告記憶手段は、警告情報の消去後に発生した警告のうち、最後に発生した警告に関する警告情報を記憶することを特徴とする請求項1~4のいずれかに記載の作業機。
- 消去後の警告情報は消去不能となっていることを特徴とする請求項1~4のいずれかに記載の作業機。
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CN107545155A (zh) * | 2016-06-29 | 2018-01-05 | 中兴通讯股份有限公司 | 一种信息处理方法和装置 |
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JP2001095345A (ja) | 1999-09-29 | 2001-04-10 | Kubota Corp | 作業機械の表示装置 |
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JPH1051824A (ja) * | 1996-07-29 | 1998-02-20 | Matsushita Electric Ind Co Ltd | 選択呼出装置 |
GB2324972B (en) * | 1997-05-08 | 2001-05-09 | Douglas Murphy Neil | Apparatus for playing a game |
US7242311B2 (en) * | 2004-10-29 | 2007-07-10 | Caterpillar Inc. | Method and system for providing work machine multi-functional user interface |
CN100557150C (zh) * | 2006-03-17 | 2009-11-04 | 中南大学 | 机电一体化挖掘机及控制方法 |
US20080059080A1 (en) * | 2006-08-31 | 2008-03-06 | Caterpillar Inc. | Method and system for selective, event-based communications |
US7912602B2 (en) * | 2007-06-29 | 2011-03-22 | Caterpillar Inc. | Visual diagnostic system and subscription service |
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JP4856163B2 (ja) * | 2008-12-26 | 2012-01-18 | 日立建機株式会社 | 建設機械の診断情報提供装置 |
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JPH0932039A (ja) * | 1995-07-17 | 1997-02-04 | Hitachi Constr Mach Co Ltd | 作業機械の一時的異常の検出装置、および作業機械の異常通知システム |
JPH11217854A (ja) * | 1998-01-30 | 1999-08-10 | Hitachi Constr Mach Co Ltd | 作業機械のモニタ用記憶容量警告装置 |
JP2001095345A (ja) | 1999-09-29 | 2001-04-10 | Kubota Corp | 作業機械の表示装置 |
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EP2626477A1 (en) | 2013-08-14 |
US20150137984A1 (en) | 2015-05-21 |
EP2626477A4 (en) | 2018-01-10 |
US9437098B2 (en) | 2016-09-06 |
CN103339330A (zh) | 2013-10-02 |
EP2626477B1 (en) | 2021-01-13 |
CN103339330B (zh) | 2016-07-06 |
KR20130122645A (ko) | 2013-11-07 |
KR20150109494A (ko) | 2015-10-01 |
US8976037B2 (en) | 2015-03-10 |
US20130176134A1 (en) | 2013-07-11 |
KR101592841B1 (ko) | 2016-02-05 |
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