JP2009000026A - Traveling vehicle for farm work use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traveling vehicle for farm work use that ensures its operator or service engineer to understand, by using a liquid crystal display unit equipped on the steering section, detailed information described in the user's manual, service manual, or the like, and/or abnormality contents, when a relevant abnormality that requires emergency response has occurred in the machine body. <P>SOLUTION: The traveling vehicle for farm working use, equipped with the liquid crystal display unit 46 for displaying farmwork-related information K2 and a control unit 21 for controlling the contents of the information K2 displayed, is such that the details of the information K2 can be read by a two-dimensional code C displayed along with the information K2; and when an abnormality needing an emergency response occurs in the machine body, an interrupt display is made by the two-dimensional code C on the screen of the liquid crystal display unit 46. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a work vehicle such as a crawler tractor provided with a liquid crystal display unit.

In recent years, the number of work vehicles equipped with a liquid crystal display unit for displaying work information has increased. For example, in a work vehicle (crawler tractor) shown in Patent Document 1, a touch panel type liquid crystal display unit is provided in a control unit provided with a driver's seat, and various operation information display and operation condition setting operations are performed on the liquid crystal display unit. Can be done.
JP 2005-218386 A

  However, in the above-described working vehicle of Patent Document 1, it is difficult to secure a sufficient screen size and number of display pixels of the liquid crystal display unit. Have a problem of not being able to communicate to the On the other hand, in a working vehicle having a failure diagnosis function, it is possible to display the type of failure on the liquid crystal display unit and transmit it to the operator, but details such as those described in the user manual, service manual, etc. It was difficult to convey the necessary work (explanation) information.

  The present invention has been made to solve the above problems, and includes a liquid crystal display unit that displays work information, and a control unit that controls the content of the work information displayed on the liquid crystal display unit. In a working vehicle configured to be able to read a detailed description of the work information by a two-dimensional code displayed together with the work information displayed on the display unit, when an abnormality requiring an emergency response occurs in the airframe, the liquid crystal It is characterized in that the display unit is configured to display an interrupt by a two-dimensional code.

  According to the present invention, the two-dimensional code displayed together with the work information displayed on the liquid crystal display unit is configured to be able to read the detailed explanation of the work information, and when an abnormality requiring an emergency response occurs in the aircraft Since the liquid crystal display unit is configured to display an interrupt display using a two-dimensional code, even if it is difficult to secure a sufficient screen size and number of display pixels of the liquid crystal display unit as in the past, a working vehicle The operator can instantly read a detailed explanation (many information) such as a user manual related to the work information using a portable terminal such as a cellular phone having a two-dimensional code reading function, Based on this detailed description, the operator can respond appropriately. In particular, the user manual or the like is effective because it is not always provided in the traveling aircraft. When an abnormality requiring an emergency response occurs in the aircraft, the interrupt display is made with the two-dimensional code, so the operator of the work vehicle can use the contents of the abnormality such as a mobile phone having a two-dimensional code reading function. It is possible to grasp with certainty using a portable terminal and appropriately cope with the abnormal content. That is, the operator of the work vehicle can accurately and promptly transmit information to the service person who performs maintenance and various settings of the work vehicle, thereby reducing the work load of the service person. .

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a traveling machine body of a crawler tractor 1 which is an example of a working traveling vehicle. This crawler tractor 1 has an engine 3 mounted on a body frame 2 in the same manner as a normal agricultural tractor. A bonnet 4, a cabin 5, and the like are provided. In the cabin 5, a driver's seat 6 and a control unit 7 in which various operation levers and switches are arranged are provided.

  A three-point link type work machine lifting mechanism 8 on which a work machine such as a rotary, a plow, and a harrow can be mounted is always installed in the lower rear part of the cabin 5. Reference numerals 9L and 9R are a pair of left and right crawler type traveling devices, and the body frame 2 is supported on the crawler type traveling devices 9L and 9R.

  More specifically, the crawler type traveling devices 9L and 9R are provided with drive sprockets 12 and idlers 13 at the front and rear ends of the left and right traveling frames 11L and 11R integrally formed at the lower part of the body frame 2, and the traveling frames 11L and 11R Two sets of equalizer arms 15 having a pair of front and rear rollers 14 at the lower part are supported so as to be able to swing up and down.

  An upper roller 16 is pivotally supported on the upper part of the front and rear substantially intermediate positions of the traveling frames 11L and 11R. The drive sprocket 12, the idler 13, the pair of front and rear rollers 14 provided in the two sets of equalizer arms 15, and The crawler type traveling devices 9L and 9R are constituted by the crawler 17 wound around the upper roller 16.

  Moreover, the crawler tractor 1 is provided with the control part 21 comprised using a microcomputer (CPU, RAM, ROM, and EEPROM are included) as shown in FIG. The control unit 21 includes a monitor unit 22 (see FIG. 4) described later, a tilt switch 24 attached to the main transmission lever 43, an engine rotation sensor 25 that detects the rotation speed of the engine 3, and a lift arm sensor that detects a lift arm angle. 26, a lift rod sensor 27 for detecting the extension / contraction length of the lift rod cylinder, a position sensor 29 for detecting a lever position of a position lever (worker lifting / lowering operation lever) 28, a draft sensor 31 for detecting a traction load such as a plow, traveling Inclination sensor 32 for detecting the right / left inclination of the machine body or work machine, provided on a rotary, etc., provided in a tilling depth sensor 33 for detecting the work depth, leveling work machine, etc., and projected from a laser projector (not shown) A laser receiver 34 for detecting the working height by the laser beam, a lift cylinder electromagnetic valve 35, a riff Rod Cylinder electromagnetic valve 36, Yes connected to the warning lamp 37 or the like, it is possible to execute the operation control of the lift cylinder and the lift rod cylinder by various control functions.

  The control function of the control unit 21 described above includes position control for automatically raising and lowering the work implement according to the operation position of the position lever 28, and automatic operation of the work implement according to the detection depth of the tilling depth sensor 33. Automatic depth control for automatically moving up and down, automatic tilt control for automatically controlling the working machine according to the detected tilt of the tilt sensor 32, and automatically lifting and lowering the working machine according to the detection load of the draft sensor 31. Automatic draft control, S mode control for automatically raising / lowering the work implement according to the rotation detected by the engine rotation sensor 25, laser control for automatically raising / lowering the work implement according to the light reception signal of the laser receiver 34, and work Raising regulation control that regulates the maximum height of the machine is included, and the control conditions of these control functions can be displayed and set by the monitor unit 22.

  In addition, the auxiliary function provided in the control unit 21 includes a failure notification mechanism for notifying the occurrence of a failure by turning on the alarm lamp 37, and a failure diagnosis result (failure type, coping method, repair method, etc.) in the failure diagnosis mode. Fault diagnosis display function to be displayed on the monitor, service information display function to display the address of the website providing detailed information (response method, repair method, etc.) corresponding to the fault type on the monitor unit 22, customer service counter operated by the manufacturer An inquiry phone number display function for displaying a phone number is included.

  As shown in FIG. 3, the control unit 7 provided in the cabin 5 includes a driver's seat 6 on which an operator is seated facing forward, a steering handle 41, a meter panel 42 that displays a traveling speed, and a traveling speed. A main transmission lever 43 for shifting operation, a position lever 28 for setting the height of the work implement, an external hydraulic operation lever 44 for operating a direction control valve of an external hydraulic pressure take-out device (not shown), an information display section and control condition setting means A monitor unit 22 that is also used as

  More specifically, a steering handle 41 and a meter panel 42 are arranged in front of the driver's seat 6, a main transmission lever 43, a position lever 28, and an external hydraulic operation lever 44 are arranged in front of the right side of the driver's seat 6. The unit 22 is arranged near the right side of the driver's seat 6. That is, if the monitor unit 22 that is also used as the information display unit and the control condition setting means is arranged in this way, the control condition setting operation by the operator is less than that in which the monitor screen and the control condition setting means are arranged apart from each other. Not only can it be easily performed, but also when the operator sits in the driver's seat 6 and changes the control conditions while viewing the working machine behind the aircraft in a half body posture, the monitor unit 22 has good visibility and operability. Can be secured.

  4 and 5, the monitor unit 22 includes a touch panel type liquid crystal display unit 46, four selection switches 51 to 54 for selecting work items to be displayed on the liquid crystal display unit 46, and a liquid crystal display. Four cursor movement switches 55 to 58 for moving the cursor displayed on the unit 46 up and down, left and right, a determination switch 59 for performing the determination operation, a depth setting operation, a draft setting operation, and an automatic on / off operation A first setting operation dial 61 that is also used as a tilt setting operation, a second setting operation dial 62 that is also used as a tilt setting operation and a determination operation, and a PTO setting dial 63 that is also used as an independent PTO setting operation and an on / off operation. It is provided integrally.

  And when the automatic selection of depth control which raises / lowers a working machine automatically is selected by the above-mentioned four selection switches 51-54, for example, as shown in FIG. It is displayed on the upper left side. The right half of the liquid crystal display unit 46 displays the operation information K2 for the automatic depth control, that is, the setting state of sensitivity, dashing, and ascending / descending speed, and a detailed description of these operation information K2. The two-dimensional code C that can be read can be displayed together with the lower left portion of the liquid crystal display unit 46. Note that the two-dimensional code C is an information recording code capable of recording information in two vertical and horizontal directions. If the two-dimensional code C is read by a portable terminal such as a cellular phone having a two-dimensional code reading function, the recorded content is displayed on the display unit of the portable terminal. It can be displayed. For example, the two-dimensional code C standardized as JISX0510 has a size of 21 cells × 21 cells to 177 cells × 177 cells, and can record a maximum of 1817 kanji characters.

  As described above, the two-dimensional code C in which the detailed description of the work information K2 (sensitivity, dashing, and ascending / descending speed) in the depth automatic control is recorded by the mobile phone that can read the two-dimensional code C. When read, for example, as shown in FIG. 6, the user manual corresponding to the work information K2 can be displayed on the screen of the mobile phone. That is, even if it is difficult to ensure a sufficient screen size and the number of display pixels of the liquid crystal display unit 46 as in the prior art, the operator of the crawler tractor 1 can use a mobile terminal such as a mobile phone having a two-dimensional code C reading function. Can be used to instantly read a detailed description (many information) such as a user manual related to the work information K2 and easily check it, and the operator can respond appropriately based on this detailed description. In particular, user manuals and the like are effective since they are not always available on the aircraft.

  On the other hand, when an important abnormality or failure requiring an emergency response occurs in the body of the crawler tractor 1, for example, overheating related to the engine 3, engine oil rise, battery charging failure, HST (not shown) that is a traveling transmission device, and the like. Normal operation of the liquid crystal display unit 46 in the monitor unit 22 when an abnormality of the hydrostatic continuously variable transmission device) or an abnormal operation of the three-point link type work implement lifting mechanism 8 equipped with a work implement such as a rotary occurs. Instead of the state, that is, the display state of the liquid crystal display unit 46 illustrated in FIG. 5, the liquid crystal display unit 46 is configured to perform interrupt display with the two-dimensional code C as shown in FIG. 7.

More specifically, FIG. 8 shows a flowchart of the interrupt display control by the above-described two-dimensional code C. Specifically, first, in step S1, abnormality or failure occurs in the body of the crawler tractor 1. If no abnormality or failure has occurred, the process returns to the original state. If an abnormality or failure has occurred, the process proceeds to step S2. In step S2, the degree of importance and urgency of the abnormality or failure is determined. If there is no need for emergency response, the process returns to the original state, and if there is a need for emergency response, the process proceeds to step S3. In step S3, the interruption display as shown in FIG. 7 is executed from the normal display state of the liquid crystal display unit 46 (for example, the display state illustrated in FIG. 5), and the process returns to the original state.

  That is, in step S3, the engine stop display is displayed on the liquid crystal display unit 46 of the monitor unit 22, and the telephone number of the consultation service for troubles operated by the manufacturer of the crawler tractor 1 is displayed, and the interrupt display by the two-dimensional code C is displayed. If the two-dimensional code C is read using a portable terminal such as a mobile phone equipped with a function for reading the two-dimensional code C, it is possible to directly call the above-mentioned troubleshooting consultation service operated by the manufacturer. It is configured as follows.

  As described above, when an important abnormality requiring an emergency response or a failure occurs, an interrupt display using the two-dimensional code C is made on the liquid crystal display unit 46 of the monitor unit 22. If the interrupt display by the dimension code C is also executed, the operator of the crawler tractor 1 can reliably grasp the abnormality content using a portable terminal such as a mobile phone having a two-dimensional code reading function, and It will be possible to respond appropriately to the content. That is, the operator of the crawler tractor 1 can accurately and promptly transmit information regarding an abnormality or a failure to a service person who performs maintenance and various settings of the crawler tractor 1, thereby reducing the work load of the service person. become.

  Further, as shown in FIG. 9, if the liquid crystal display unit 46 of the monitor unit 22 is configured so that the address of the website that provides information on the handling instructions of the crawler tractor 1 can be displayed by the two-dimensional code C, the crawler tractor can be displayed. A service person who performs maintenance and various settings of 1 accesses the Web site using a mobile terminal such as a mobile phone equipped with a reading function of the two-dimensional code C, and directly and easily confirms information on handling instructions at the work site. This can reduce the workload of service personnel.

  Also, a two-dimensional code C in which the telephone number of a trouble consultation counter operated by the manufacturer of the crawler tractor 1 described above and the address of a Web site that provides information on handling instructions is recorded is shown in FIGS. ), The display labels 71 and 72 to be affixed to the airframe may be printed. In this case, too, an operator or serviceman of the crawler tractor 1 may use a portable terminal such as a cellular phone provided with a function of reading the two-dimensional code C. If the two-dimensional code C is used to read the information, it is possible to directly call the trouble consultation service operated by the manufacturer described above, and to access the web site directly and easily at the work site. Will be able to confirm.

  Similarly, FIG. 11 exemplifies the display label 73 of the setting unit that performs the working depth and inclination adjustment of the work machine mounted on the crawler tractor 1, and the display label 73 also corresponds to various setting items. If the two-dimensional code C in which the adjustment method is recorded is printed, the operator or serviceman of the crawler tractor 1 reads the two-dimensional code C using a portable terminal such as a mobile phone having a two-dimensional code C reading function. be able to. In other words, the operator and service person of the crawler tractor 1 can accurately grasp the adjustment method corresponding to various setting items at the work site, so that workability is improved.

The side view of a crawler tractor. The block diagram which shows the input / output of a control part. The top view of a control part. The principal part perspective view of a control part. The front view of a monitor unit. The front view which shows the screen of a mobile telephone. The front view which shows the interruption display screen of a liquid crystal display part. The flowchart which shows the procedure of interruption display control. The front view which shows the display screen (access to a website) of a liquid crystal display part. (A), (b) The front view which shows the display label which printed the two-dimensional code. The front view which shows the display label of the setting part which printed the two-dimensional code.

Explanation of symbols

21 Work information 46 Liquid crystal display K2 Work information C Two-dimensional code

Claims (1)

  A liquid crystal display unit (46) for displaying work information (K2) and a control unit (21) for controlling the content of the work information (K2) displayed on the liquid crystal display unit (46) are provided, and the liquid crystal display unit (46 In the working vehicle configured to be able to read the detailed description of the work information (K2) by the two-dimensional code (C) displayed together with the work information (K2) displayed in (), an abnormality requiring an emergency response is detected. When this occurs, the working vehicle is configured such that the liquid crystal display unit (46) displays an interrupt by a two-dimensional code (C).

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