JP2004097077A - Program and apparatus for displaying device state data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display acquired control device state data in a clear form by accessing the memory of a controller loaded on a working machine. <P>SOLUTION: The working machine 2 is loaded with the controller 20 and a plurality of control devices are connected to the controller 20. State data displaying the states of a plurality of the control devices connected to the controller are stored in the memory 21 of the controller 20. The apparatus 1 for displaying device state data acquires the control device state data from the memory 21 of the controller 20 and displays the data in a display 105. The display apparatus 1 is equipped with an attribute description file 70 for recording control device attribute information such as the storage position of the state data and the titles of the state data in the memory 21 in a searching and extracting manner, a searching and extraction part 14 for searching and extracting the attribute information of the state data to be displayed from the attribute description file, a state data acquisition part 12 for acquiring the state data from the memory of the controller on the basis of the extracted attribute information and a display pretreatment part 13b for pretreating the acquired state data into a state to be readily understood by users on the basis of the attribute information for indication of the acquired state data in the display. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a state data stored in a memory of a controller mounted on a working machine, which indicates a state of a plurality of control devices connected to the controller, is acquired through data transmission with the controller, and a display is obtained. The present invention relates to a technology for displaying device status data to be displayed on a computer.
[0002]
[Prior art]
As a conventional technique for displaying such device state data, for example, it is determined whether various sensors of a tractor or a solenoid of an electromagnetic valve are operating normally, and the determination result is provided in a non-volatile memory provided in a control device. There is one that is stored in a memory, and the determination result data stored in the memory is sequentially read out by a personal computer connected to the control device so as to be able to transfer data, and displayed on a display of the personal computer (for example, see Patent Document 1). ). According to this conventional technique, when data read from a memory is sequentially displayed on a display of a personal computer while incrementing a memory address, a sequence of normal data is obtained, and such data is related to any control device. It is difficult to grasp the additional information unless a person skilled in the control device is experienced.
[0003]
In addition, mobile phones that check the operating status of the controller mounted on the work machine and the operating status of the input unit (sensor, etc.) and output unit (solenoid, etc.) connected to the controller by enabling data transfer to the controller A type checker device is also known, and this checker device is provided with an IC card equipped with a dedicated check program adapted for each type of work machine, and this IC card is used as a work machine to be checked. By attaching them together, a check program is started and a check of the operating state is started (for example, see Patent Document 2). In this conventional technique, inspection is performed by activating a check program optimized for each model, and the result is displayed. This simplifies the check work, but every time the control content of the controller is upgraded, It is necessary to re-create the check program, and frequent upgrades increase the maintenance cost of the checker device.
[0004]
Furthermore, it is connected to an electronic control unit mounted on the vehicle, reads out the data in this electronic control unit and performs failure diagnosis, and reads the read out data to the host computer for further diagnosis with a graphically easy-to-read display. There is also a portable failure diagnosis device for transferring (for example, see Patent Document 3). In this known technique, since the graphical display is transferred to the host computer, the display and diagnosis programs are simpler than in the case where all are performed by themselves, but programs optimized for each model are still implemented. ROM cartridges need to be prepared, and upgrading the program in accordance with the increase in the number of models and the appearance of frequent improved models imposes a heavy burden.
[0005]
Similarly, in addition to the function of transferring the read data to the host computer for further diagnosis, there is also a portable failure diagnosis device capable of displaying a graphic using a template by itself, but to provide a display that is easy for the user to see. In this case, the types of data transferred from the vehicle also increase, the display program becomes complicated, and the cost burden increases (for example, see Patent Document 4).
[0006]
[Patent Document 1]
JP-A-8-298807 (paragraph numbers 0019 to 0025, FIG. 7)
[Patent Document 2]
JP-A-8-286728 (paragraph numbers 0025 to 0044, FIG. 7)
[Patent Document 3]
JP-A-8-015095 (paragraphs 0019 to 0040, FIG. 2)
[Patent Document 4]
US Pat. No. 5,541,840 (column 16, FIG. 1, FIG. 12, FIG. 13)
[0007]
[Problems to be solved by the invention]
In view of the above situation, an object of the present invention is to provide a technique for displaying state data of a control device obtained by accessing a memory of a controller mounted on a working machine in an easy-to-view form.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problem, state data stored in a memory of a controller mounted on a work machine and indicating a state of a plurality of control devices connected to the controller is obtained through data transmission with the controller. In the device status data display program according to the present invention to be displayed on a display, an attribute description file that records control device attribute information such as a storage position of the status data in the memory and a name of the status data in a searchable and extractable manner; A search and extraction function for searching and extracting attribute information of status data to be displayed from the attribute description file, a status data obtaining function for obtaining status data from the memory based on the extracted attribute information, and the obtained status Understand by the user based on the attribute information to display data on the display It is provided a display before processing function for preprocessing to easily form.
[0009]
Further, in order to solve the above problem, stored in the memory of the controller mounted on the working machine, state data indicating the state of a plurality of control devices connected to the controller, through data transmission with the controller In the device status data display device according to the present invention, which is acquired and displayed on a display, an attribute description file in which control device attribute information such as a storage position of status data in the memory and a name of status data is recorded in a searchable manner. A search and extraction unit for searching and extracting attribute information of status data to be displayed from the attribute description file; a status data obtaining unit for obtaining status data from the memory based on the extracted attribute information; The status data is displayed on the display and is understood by the user based on the attribute information. It is provided a display preprocessing unit for preprocessing the pancreatic form.
[0010]
In such a device status data display program configuration or in a device status data display device employing such a program configuration, if there is status data of a control device to be displayed, attribute information about the control device is extracted from an attribute description file of the control device. Search and extract, read the status data of the control device based on the memory address in the controller of the status data included in the attribute information, and convert the status data to a form that is easy for the user to understand based on the attribute information. After processing, it is displayed on the display. For example, the status data is displayed on a display together with a name that accurately represents the meaning of the relevant status data included in the attribute information, so that the status data of the desired control device is not displayed in a row of data. Is displayed together with an easy-to-understand descriptive name, so that the displayed state data can be easily understood even by a non-expert.
[0011]
Furthermore, with the improvement of the work equipment and the new products, the control devices incorporated in them will also be changed, and as a result, the attribute information of the control devices, that is, the storage position of the relevant status data in the controller memory and the relevant status data Also needs to be changed. However, in the present invention, since the attribute information of such a control device is separated from the program body as an attribute description file, even if there is a change, the contents of the attribute description file are rewritten or newly added. Just by doing so, it is possible to respond to the appearance of new models and version upgrades of old models. There is virtually no need to modify the program itself. Therefore, even if such a change is frequently repeated, it can be dealt with at low cost.
[0012]
Such display of device status data is performed during regular maintenance of the work machine at the user level or during the patrol maintenance by the patrol service staff. When the device status data display program starts, the model of the work device is first input. Become. It is important to adopt a user-friendly interface in which this model input operation is not directly input but is selected from a list. As a suitable measure for realizing this without touching the program body, the attribute description A configuration is proposed in which a file is separately prepared for each model of the work machine, and the file name is used as the model name. For example, a desired model is selected by selecting from the file name list.
[0013]
As described above, in the device status data display technology according to the present invention, only the attribute description file should be substantially changed with the appearance of a new model or the upgrade of an old model. It is preferable that the attribute description file is a text-based file that can be created and modified with spreadsheet software or a text editor so that new creation and modification can be easily performed by an amateur who is not familiar with the program. is there. As a result, the attribute description file can be corrected and created without using any program, using spreadsheet software or text editors installed in most personal computers.
[0014]
The contents of this attribute description file need to be searched easily and at high speed, and the search is performed for each control device. In view of this, in one preferred embodiment of the present invention, the attribute description file is composed of a plurality of records for each state data separated by a line feed symbol, and the record is composed of a plurality of records separated by a delimiter. The field items include a category of the control device, a name of the status data, an address of the status data in the memory, a criterion for judging the appropriateness of the status data, and the like. As a result, attribute information of a desired control device can be obtained by performing a search in units of rows, so that high-speed search can be expected. Further, the category of the control device is included in the attribute information, and the user can easily perform a user-friendly display by using the status data as a sort key when displaying the category by category.
[0015]
As a preferred embodiment of the present invention, when time data representing an absolute time lapse generated by time data generating means provided in the work machine is combined with each state data of the control device, the present invention Since the device status data display preprocessing function has a time-series mode for rearranging the status data in a time-series manner, time-series display of status data of each control device, which is extremely effective for failure diagnosis, is possible.
[0016]
Since the controller of the work machine is installed in an extremely hard-to-access place surrounded by a housing for dust protection and the like, it is often difficult to connect cables. In order to solve this problem, one of the preferred embodiments of the present invention has a function of performing wireless data communication of state data with the controller.
[0017]
Other features and advantages according to the present invention will become apparent from the following description of embodiments with reference to the drawings.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
A device status data display device 1 constituted by a personal computer (hereinafter simply referred to as a personal computer) in which a device status data display program according to the present invention is mounted, and the device status data display device 1 displays the device status data. FIG. 1 shows a tractor 2 as an example of a working machine.
The tractor 2 has an engine 33 mounted on a front portion of a vehicle body having a drive-type front wheel 31 and a drive-type rear wheel 32 operable for steering, and power from the engine 33 is transmitted through a clutch housing 34. A transmission case 35 is disposed at the rear of the vehicle body, a meter panel 36 and a steering handle 37 are disposed at the front of the vehicle body, and a driver seat 38 and a protection frame 39 are disposed above the transmission case 35. A pair of left and right lift arms 41 is provided at a rear position of the lift arm 35 to move up and down by the operation of the lift cylinder 40.
[0019]
A rotary tilling device 44 is connected to a rear end of the vehicle body via a three-point link mechanism including a top link 42 and a pair of left and right lower links 43, and the lower link 43 and the lift arm 41 are suspended by left and right lift rods 45. The rotary tilling device 44 is moved up and down by the operation of the lift cylinder 40 by connecting the rolling cylinder 46 to one of the left and right lift rods 45 in the lowered state, and the rotary tilling device 44 is operated by the operation of the rolling cylinder 46. It is supported for rolling. A rear cover 44A is provided at the rear position of the rotary tilling device 44 so as to be able to swing around an axis in a horizontal posture, and a potentiometer type tillage depth sensor 47 for measuring the swing amount of the rear cover 44A is provided on the upper surface of the device. . The base end of the lift arm 41 is provided with a potentiometer type lift arm sensor 48 for measuring the swing amount of the lift arm 41, and a potentiometer type stroke sensor 49 for measuring the operation amount of the rolling cylinder 46. Is provided with a rolling sensor 50 for measuring the rolling amount of the traveling vehicle body.
[0020]
A right side portion of the driver's seat 38 is provided with a position lever 51 for raising and lowering the rotary tillage device 44 and an operation panel 52. On an upper surface of the operation panel 52, various switches for inputting various control settings such as rolling control are provided. And dials are provided. At a position near the operation panel 52, a control case 53 accommodating the controller 20, which will be described in detail later, is provided. A shift lever 54 is arranged on the left side of the driver's seat 38, an accelerator lever 55 is arranged near the steering handle 37, and various control display lamps are provided on the meter panel 36.
[0021]
In this embodiment, the power from the engine 33 is transmitted to a traveling main transmission (not shown), a first auxiliary transmission (not shown), and a second auxiliary transmission (not shown) in the transmission case 35. The transmitted power is subjected to a speed change operation, and is transmitted from a rear wheel differential mechanism (not shown) to the left and right rear wheels 32. Further, the power branched from the rear wheel differential mechanism is transmitted from a front wheel transmission (not shown) to a front wheel transmission shaft ( The power is transmitted to the left and right front wheels 31 via a front wheel differential mechanism (not shown) and a front wheel differential mechanism (not shown). With this front wheel transmission, it is possible to selectively create a standard state in which the front wheels 31 are driven at the same speed as the rear wheels 32 and a speed-up state in which the front wheels 31 are driven at a higher speed than the rear wheels 32. The shift change of the front wheel transmission can be performed by the movement of the pitman arm interlocked with the steering handle 37, and when the steering handle 37 is operated to a certain degree or more, that is, the front wheel 31 is steered in either the left or right direction beyond the set angle. When the front wheel turning angle sensor 31a detects this, the front wheel 31 is driven at an increased speed. Such a technique of increasing the speed of the front wheel 31 during turning to improve the turning performance is known as a front wheel speed-up mode.
[0022]
Further, the transmission system to the left and right rear wheels 32 is provided with left and right side brakes capable of operating in accordance with the turning angle of the front wheels. Then, the side brake of the rear wheel 32 on the turning center side can be set to a weak braking state. Such a technique of improving turning performance by braking the inner rear wheel 32 during turning is known as a braking turning mode.
[0023]
The controller 20 housed in the control case 56 functions as the core of the ECU (electronic control device) of the tractor, and creates various functions necessary for the tractor by hardware and / or software. . Various controllers (input devices and output devices) are connected to the controller 20. Here, only some devices suitable for the description of the present invention will be described with reference to FIG.
[0024]
First, in addition to the lift arm sensor 48, the stroke sensor 49, the rolling sensor 50, and the front wheel turning angle sensor 31a, an engine speed sensor 61 for measuring the speed of the engine 3 is connected to the controller 20 as an input device. .
[0025]
Next, as an example of a switch for inputting various control settings, regardless of the attitude (tilt) of the traveling body, the rotary plow 44 as an external working device mounted on the traveling body is moved to a predetermined attitude (usually horizontal). The first horizontal control changeover switch 62a, the second horizontal control changeover switch 62b, and the third horizontal control changeover switch 62c used for setting some modes in the horizontal control for maintaining the posture are connected to the controller 20. The first horizontal control changeover switch 62a is for setting the mode for manually performing the horizontal control, and the second horizontal control changeover switch 62b is for setting the horizontal control on a flat surface with respect to a standard external working device (rotary tilling device 44). The third horizontal control changeover switch 62c is for setting a slope mode in which horizontal control is performed on a slope.
[0026]
Further, the controller 20 also includes a rolling UP switch 63a used to forcibly raise one side end of the rotary tilling device 44 and a rolling DOWN switch 63b for forcibly lowering one side end of the rotary tilling device 44. It is connected to the. Although not shown here, the cultivation depth sensor 47, a potentiometer type position setting device operated by the position lever 51, a cultivation depth setting device, a rolling angle setting device, and a rotational operation position of the accelerator lever are measured. An accelerator sensor and the like are also connected to the controller 20.
[0027]
As an output device among the control devices associated with the controller 20, there are a control display lamp and a solenoid for operating the various cylinders and brakes described above, but here, the front wheel speed-up mode described above is operating. A double-speed lamp 60a for notifying the driver of this fact, a brake turning lamp 60b for notifying the driver that the above-described brake turning mode is operating, and notifying the driver that the above-described horizontal control is operating. A horizontal control lamp 60c is connected to the controller 20 as an example, and a horizontal control control solenoid 64, a left brake solenoid 65a, and a right brake solenoid are used as solenoids for operating the rolling cylinder 46, the left and right side brakes, and the front wheel transmission. The brake solenoid 65b and the double speed solenoid 66 are connected to the controller 20. It is connected.
[0028]
In the controller 20, status data indicating the status of various input / output devices as control devices associated with the controller 20, that is, ON / OFF values and voltage values, are stored in a non-volatile memory such as an EEPROM. 21 are stored in addresses assigned to the respective devices.
[0029]
The memory 21 is also used to specify a sensor when an abnormality occurs in a control device such as a sensor, and to store abnormality occurrence data indicating the occurrence of the abnormality as one form of state data of the present invention. I have. For this reason, an abnormality check program is implemented as an abnormality check unit 22 in the controller 20. This abnormality check program determines whether a signal from an input / output device is within a normal range, for example, a stroke, when control is started in a state where the engine 33 is started after an ON operation of a key switch (not shown). In the case of the sensor 49, when the signal value output when the corresponding cylinder is mechanically operated in the full stroke falls within a predetermined voltage range, it is determined that the signal is normal, and when the signal value is outside the predetermined voltage range. Is judged to be abnormal. This abnormality check program is periodically performed until the key switch is turned off. When an abnormality occurs, an abnormality notification is also performed as necessary.
The status data (including abnormality occurrence data) of each device stored in the memory 21 can be transferred to the device status data display device 1 via the communication port 24 by the operation of the communication control unit 23 mounted on the controller 20. It is. As a data transmission connection between the controller 20 and the device status data display device 1, a cable connection mode based on the RS232C protocol or the like, or a wireless connection mode based on the IEEE 802.11 protocol or the like may be used.
[0030]
The controller 20 is also provided with a control program for the operation using the rotary tillage device 44. In cooperation with the above-described control device, for example, at the time of automatic tillage depth control, the rotary tillage is set at the depth set by the tillage setting dial. A control operation of driving the lift cylinder 48 by feeding back a tillage depth signal obtained by the tillage depth sensor from the swing amount of the rear cover 44A that contacts the tillage surface so that the tillage device 44 is plowed, At the time of automatic horizontal control, the horizontal control display lamp 60c is turned on, and the amount of expansion and contraction of the rolling cylinder 46 is determined based on a signal from the rolling sensor 50 so that the rotary tilling apparatus 44 maintains the set ground rolling attitude, and The signal from the stroke sensor 49 is fed back so as to extend and contract by the determined amount. It performs a control operation to stretch the ring cylinder 46.
[0031]
When the tractor 2 including the controller 20 is maintained as described above, it is necessary to know information necessary for the maintenance, for example, the state of a control device such as a control setting switch, a control display lamp, and a solenoid. 1 is connected to the communication port 24 of the controller 20 via a cable. The main body of the device status data display device 1 is a general-purpose personal computer. As shown in FIG. 4, a keyboard 101, a mouse 102, a communication control unit 103 and a communication port 104 for enabling data transfer from the controller 20 of the tractor 2, A video control unit 106 for displaying device information including device status data obtained from the controller 20 and arranged in an easily viewable form on a display 105, a printer 107 for printing out such device information, and a recording medium such as an MO or a floppy disk And a media drive 108 for recording the data to a computer. By loading the device status data display program according to the present invention, which is supplied as a CD or the like, to the personal computer equipped as described above, the personal computer functions as the device status data display device 1.
[0032]
Among the functions of the device status data display device 1 constructed by the device status data display program, particularly those related to the present invention, as shown in a schematic block diagram form in FIG. An operation input processing unit 11 that determines what kind of operation input has been performed based on a key input or a click of the mouse 102; a data acquisition unit 12 that reads out device state data from the controller 20 of the tractor 2 through the communication control unit 103; A data display screen generating unit 13 for creating display screen information of the device status data based on the read device status data, which is loaded into the device status data display device 1 as an independent file as a part of the device status data display program. Required from the attribute description file 70 that describes the attribute information on each of the control devices described above. Search and extraction unit 14 searches extract data, such as data formatting unit 15 and the like for converting the device information displayed on the display in the print output data and media writing data.
[0033]
In other words, the device status data display program includes a program main unit 10 that creates functions such as an operation input processing unit 11, a data acquisition unit 12, a data display screen generation unit 13, a search and extraction unit 14, and a data format unit 15; It is composed of an attribute description file 70. The attribute description file 70 has a text-based file structure, and will be described later in detail, but is prepared as an independent file for each model of the tractor 2 to be maintained.
[0034]
The data display screen generation unit 13 includes a basic frame generation unit 13a that generates basic frame data and character data constituting various display windows of maintenance device information displayed on the display 105, and read device status data. A display preprocessing unit 13b that arranges the data in a form that is easy to see, and a synthesizing unit 13c that synthesizes these data and uses the data as display screen information of device status data.
[0035]
As shown in FIG. 5, the attribute description file 70 is divided into a pre-script area, a state data description area, and a failure history description area. Each data is described in a line unit delimited by a line feed. As described above, the attribute description file 70 is created for each model, and the model name is adopted as the file name. In the example of FIG. 5, the attribute description file 70 used for the model “King” is the King. The file name is “ini” (ini is an extension). Therefore, when a list of applicable models is displayed, this file name should be displayed in a list.
[0036]
As is clear from FIG. 5, the pre-script area includes a communication protocol for data transmission with the controller 20 of the tractor 2, a failure history format indicating a storage format of the failure history stored in the memory 21 of the controller 20, An address range in which the device status data of the EEPROM constituting the memory 21 is stored is described. When the attribute description file 70 is created or modified, device status data can be obtained by simply writing appropriate data in the form of “item name =...” In the line below each item using spreadsheet software or a text editor. The program body 10 of the display program can use necessary data by extracting necessary data from the text data described in the line below the item name. For example, if the EEPROM address range is "0,127", a data dump display is possible by reading data from addresses 0 to 127.
[0037]
As shown in FIG. 6, in the status data description section, attribute information including a plurality of field items of each control device is separated by a line feed code, that is, described as a record in units of lines. The field items include a record number, a device name, a function classification, a storage address, mask data, a category 1, a category 2, a unit, an appropriate criterion, and remarks. Here, the device name is an easy-to-understand name of an input / output device whose state data is stored in the memory 21 of the controller 20, and is, for example, "first horizontal SW" or "rolling sensor". The function classification describes the name of the function control in which the device is used. By using this function classification as a search key, it is possible to extract only the attribute information on the device related to the specific function control, which is convenient for displaying status data for each specific function control. The storage address is the address of the memory 21 in which the status data is stored, and the corresponding status data can be obtained by requesting the controller 20 to transfer data using this address as an argument. The mask data is used to extract only the corresponding status data when the data transferred from the corresponding address includes the status data of a plurality of devices in bit units. It will be calculated. Category 1 classifies whether the device is an input system or an output system, and is convenient when displaying status data separately for an input system and an output system. Category 2 indicates the type of data. For example, “BIN” indicates that the data is binary data, and AD10 indicates that the voltage data is 5V represented by 10 bits. The unit describes a unit symbol when the state data has a unit. When the status data transferred from the memory 21 is simply displayed as a numerical value, there is a case where it is difficult to know whether the unit is ampere or volt unless a skilled person. In such a case, by displaying the unit symbol read from the unit field together with the numerical value of the state data, a more user-friendly display is realized. Finally, the appropriateness criterion used to determine whether the transferred status data is appropriate is also described in some cases, and any status data that is out of the criterion is specified in the display. It is also possible to draw the user's attention by using colors or blinking.
[0038]
The failure information description unit is used to display failure data written to a predetermined address of the memory 21 for a control device determined to be abnormal by the abnormality check unit 22 of the controller 20 while the tractor 2 is operating. The attribute information to be described is described in the same manner as the state data description section, as shown in FIG. By searching and extracting only records in which the category 1 describes "ERR" from the device attribute description file 70 of the corresponding model, attribute information such as a memory address relating to the failure occurrence data can be obtained. Further, here, it is stipulated that if the value of the state data (failure occurrence data) acquired from the specified address of the memory 21 is “0”, if “1”, it is regarded as a failure.
[0039]
Next, the procedure for displaying the status data of the control device mounted on the tractor 2 using the device status data display device 1 will be described with reference to the display of the device status data display device 1 shown in FIGS. Description will be made with reference to a display screen diagram displayed on the display 105.
[0040]
When the program main unit 10 of the device status data display program loaded on the device status data display device 1 is started, a maintenance model selection screen as shown in FIG. 8 is displayed. This screen is composed of an input frame having items such as a model name, a model name, and a serviceman name, and this portion is created by the basic frame generation unit 13a of the data display screen generation unit 13. However, for example, each item of the so-called pop menu displayed in the model name selection area includes all the attributes loaded into the device status data display device 1 extracted by the display preprocessing unit 13b via the search and extraction unit 14. It consists of the file name of the description file 70. When three attribute description files 70 as shown in FIG. 5 are loaded, “King”, “Queen”, and “Prince” are displayed in this pop menu. Of course, when another attribute description file 70 is added, its file name is also added to the pop menu. That is, with the appearance of a new model, the attribute description file 70 for the new model is added while the program body 10 remains unchanged, and the new model name is added to the pop menu.
[0041]
When an appropriate model is selected on the maintenance model selection screen of FIG. 8 and a “next” button is clicked, an item selection menu screen as shown in FIG. 9 is displayed. On this screen, when a check mark is put on the item of the input / output check and the “next” button is clicked, a comprehensive input / output check screen as shown in FIG. 10 is displayed. Here, when the "Save" button is clicked, the selected item, that is, the input / output check, the ECU basic information, the failure information, or any combination thereof is transferred from the controller 20 of the tractor 2. The state data is processed by the display preprocessing unit 13b based on the attribute information recorded in the attribute description file 70, and is transferred to the data format unit 15 together with necessary attribute information. It is stored in a predetermined recording medium. Similarly, when the “print” button is clicked, the above-described state data and the attribute information associated therewith are printed out by the printer 107 in a predetermined print style.
[0042]
The basic layout configuration of the input / output check comprehensive screen is created by the basic frame generation unit 13a, but the screen creation of the information indicating the status of each control device is performed by referring to the contents of the attribute description file 70. 13b. That is, here, the attribute description file 70 of the model to be checked is read into the working memory, and the input device group whose state data is a voltage value is sorted by using the values of category 1 and category 2 as keys. The input device group that is listed in the first display column and whose status data is an ON / OFF switch input value (binary data) is listed in the next display column, and the status data is the number of revolutions. The output device group of the value of the engine speed sensor 66 is listed.
[0043]
When the items listed in each display column cannot be displayed, these items are displayed in a scrolling manner. However, a category display button located at the upper left of each display column, here, a "voltage" button, a "switch input" By clicking the button and the "output" button, all the items listed in each display column are displayed in the input / output check individual screen as shown in FIGS.
[0044]
In the display field of the input device group having a voltage value as the status data, as shown in FIGS. 10 and 11, a sensor name as the name of the corresponding control device and the status data in a box arranged on the right side of the sensor name are displayed. , A voltage value “V” as a unit on the right side thereof, and a value of an appropriate measurement reference are displayed. A button is placed to the left of the sensor name, but if the status data of the corresponding sensor, that is, the voltage value is out of the proper measurement standard, it is red as a failure, and if it is within the proper measurement standard, it is blue as normal. Is displayed.
[0045]
On the other hand, in a display column of an input device group having ON / OFF binary data as state data, as shown in FIGS. 10 and 12, a sensor name as a name of a corresponding control device and a sensor name of the sensor name are displayed. Only the buttons arranged on the left side are displayed, but the colors of the buttons are used to indicate the ON state or OFF state of each sensor, where blue represents ON and yellow represents OFF. .
[0046]
When a check mark is put on the item of the failure information on the item selection menu screen of FIG. 9 and the “Next” button is clicked, the abnormality check unit 22 of the controller 20 as shown in FIG. A failure information screen is displayed in which the control devices determined to be abnormal are listed based on the acquisition of the failure occurrence data described above.
[0047]
In any case, the display screen data displayed on the screen requires that the data acquisition unit 12 request data transfer to the controller 20 using the value of the “address” field extracted as the content of the record of the corresponding control device as an argument. The display value and the value of the "name" field obtained by processing the data obtained in step (1) based on the value of the "mask data" field and the value of the "category 2" by the display pre-processing unit 13b are combined by the combining unit 13c. It is created by incorporating it into the basic display frame created by.
[0048]
FIG. 14 illustrates a procedure for displaying the status data of the various control devices described above on the display 105 in a format that is easy for the user to understand, taking up the status data of the rolling sensor 50 which is one of such status data. I do.
First, the model selected by using the mouse 102 on the maintenance model selection screen of FIG. 8 is internally processed by the operation input processing unit 11, and “King.ini” is prepared from the attribute description files 70 prepared by the number of models. The retrieval / extraction unit 14 extracts a record that satisfies a predetermined retrieval condition from the loaded attribute description file 70. It is assumed that a record of record number 11 is extracted from the retrieved attribute description file 70. The most important field in the record is a field indicating the address of the memory 21. In this example, "30H40" is extracted and sent to the data acquisition unit 12, and is used as an argument of a data request function to the controller 20. Unit 12 receives the raw state data in response to this function. The display preprocessing unit 13b grasps from the "AD10" which is the field value of the category 2 that the raw state data is voltage data representing 5V by 10 bits, and converts this to decimal values. Thus, for example, “1.18” is obtained. The unit field value “V” is used as the unit. Further, the display preprocessing unit 13b checks whether the value satisfies the criterion described in the appropriateness criterion field, and when satisfied, sets the color of the item button created by the basic frame generation unit 13a to green. If not satisfied, specify red. Further, the name of the state data, here, "rolling sensor" is extracted and sent together with the above-mentioned data to the synthesizing unit 13c, and as display data on the display 105, as a basic frame including a button (image) and character data. "Rolling sensor 1.18V 0.20 to 4.90" (see FIG. 14) is generated. Similarly, the status data of the other control devices is the display data as described above.
[0049]
In the description of the above-described embodiment, the data relating to the control device stored in the memory 21 of the controller 20 is only the state data. However, if the controller generates time data indicating an absolute time lapse, Is provided, the time data can be stored in the memory 21 in combination with each state data of the control device. The data transferred from the memory 21 by the data acquisition unit 10 is again separated into time data and status data by the display preprocessing unit 13b, and can be used for displaying status data as described in the previous embodiment. If the time data and the status data are stored as combined, the status data is rearranged in chronological order when these data stored at the time of regular or irregular maintenance are displayed collectively. Displaying in the time-series mode is a great help for work such as investigating the cause of failure diagnosis. In addition, if the failure data written to the predetermined address of the memory 21 each time is combined with such time data by the failure check unit 22 of the controller 20 of the tractor 2 determining that the failure data is abnormal, the failure data can be accurately determined. It can be displayed in chronological order, and by examining the time of occurrence of an abnormality that has occurred in each control device, it becomes possible to correctly grasp the cause of the failure and the prediction and prevention of the next failure.
[Brief description of the drawings]
FIG. 1 is a side view of a tractor connected to a device status data display device according to the present invention.
FIG. 2 is a plan view of the tractor according to FIG. 1;
FIG. 3 is a block diagram showing control devices connected to a tractor controller;
FIG. 4 is a functional block diagram of the device status data display device.
FIG. 5 is an explanatory diagram showing a configuration of an attribute description file.
FIG. 6 is an explanatory diagram showing a configuration of a status data description section of an attribute description file.
FIG. 7 is an explanatory diagram showing a configuration of a failure information description section of an attribute description file.
FIG. 8 is a diagram of a display screen displayed on a display of the device status data display device.
FIG. 9 is a display screen image displayed on a display of the device status data display device.
FIG. 10 is a display screen image displayed on a display of the device status data display device.
FIG. 11 is a display screen diagram displayed on a display of the device status data display device.
FIG. 12 is a diagram of a display screen displayed on a display of the device status data display device.
FIG. 13 is a display screen diagram displayed on a display of the device status data display device.
FIG. 14 is a schematic diagram showing a procedure until an example of state data becomes display data.
[Explanation of symbols]
1 Device status data display device
2 Tractor (work equipment)
20 Controller
21 Non-volatile memory
10 Program body
12 Data acquisition unit
13 Data display screen generator
13a basic frame generation unit
13b display preprocessing unit
13c synthesis unit
14 Search extractor
15 Data format part
70 Attribute description file
105 display

Claims (7)

A device that acquires status data stored in a memory of a controller mounted on a working machine and indicates a status of a plurality of control devices connected to the controller through data transmission with the controller, and displays the acquired data on a display. In the status data display program,
An attribute description file that records control device attribute information such as the storage position of state data and the name of state data in the memory in a searchable and extractable manner;
A search and extraction function for searching and extracting attribute information of state data to be displayed from the attribute description file;
A state data acquisition function for acquiring state data from the memory based on the extracted attribute information,
A display pre-processing function for pre-processing in a form that is easy for a user to understand based on the attribute information in order to display the obtained state data on the display;
A device status data display program characterized by comprising: The apparatus status data display program according to claim 1, wherein the attribute description file is separately prepared for each model of the work machine. The apparatus status data display program according to claim 1, wherein the attribute description file is a text-based file that can be created and modified by spreadsheet software or a text editor. The attribute description file is composed of a plurality of records for each state data delimited by a line feed symbol, and this record has a plurality of field items delimited by a delimiter symbol. 4. The apparatus status data display program according to claim 3, further comprising a name of the status data, an address of status data in the memory, a criterion for judging the appropriateness of status data, and the like. Time data representing an absolute time lapse generated by the time data generating means provided in the work machine is combined with each state data of the control device, and the display pre-processing function converts the state data into a time series. The device status data display program according to any one of claims 1 to 4, further comprising a time-series mode for rearranging the data. The device status data display program according to any one of claims 1 to 5, further comprising a function of performing status data transmission with the controller by wireless communication. A device that acquires status data stored in a memory of a controller mounted on a working machine and indicates a status of a plurality of control devices connected to the controller through data transmission with the controller, and displays the acquired data on a display. In the state data display device,
An attribute description file that records control device attribute information such as the storage position of state data and the name of state data in the memory in a searchable and extractable manner;
A search and extraction unit for searching and extracting attribute information of state data to be displayed from the attribute description file;
A state data acquisition unit that acquires state data from the memory based on the extracted attribute information,
A display preprocessing unit that preprocesses the acquired state data into a form that is easy for a user to understand based on the attribute information in order to display the acquired state data on the display;
A device status data display device comprising:

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