JPH0556705A - Monitor device for agricultural machine - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a monitoring device for agricultural machines such as tractors and combine harvesters, based on the operating conditions of various sensors provided in these machines or the data detected by the sensors. The result of arithmetic processing according to a predetermined program is displayed. [Configuration] A monitor device is connected to a controller of an agricultural machine via a communication line. A card type storage medium containing a program for displaying sensor information is detachably attached to the monitor device, and the sensor information selected by the operator is displayed on the display unit according to the program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for agricultural machines such as tractors and combine harvesters.

[0002]

2. Description of the Related Art The instrument panel of a power farming machine such as a tractor or combine is equipped with instruments for various monitors. For example, in the tractor, various instruments such as those showing the PTO rotation speed, those showing the engine rotation speed, and those showing the vehicle speed are incorporated in the instrument panel.

[0003]

By the way, in such a conventional device, the type of instrument differs depending on the model and the model, and there is a drawback that the instrument cannot be shared even if it is the same model. In the case of mounting the device, there is a problem that a monitor device for displaying the operation status cannot be incorporated in the instrument panel later.

In recent years, a computer equipped with a monitor for controlling a power agricultural machine by a microcomputer and displaying input information detected by various sensors or a calculation result based on the detected information of these sensors has appeared. However, even if the model is the same, the control contents that can be displayed are different depending on the model, and changing the program installed in the controller each time is costly and complicated.

[0005]

SUMMARY OF THE INVENTION The present invention is proposed in view of the above-mentioned problems, and is useful for agricultural machines having many models and models, and is a monitor that can quickly respond to retrofit options. It is intended to provide a device.
Therefore, the present invention takes the following technical means.
That is, various sensors on the input side, the controller side connected to the actuator to the output side, and display means for selectively displaying various control information from the controller side on the device side via the communication line, And a card type storage medium storing a program for displaying various control information, and a program corresponding to each sensor stored in the card type storage medium using the communication line. Is started and the sensor information and the like are displayed on the display means.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. First, the structure will be described. 1 is a tractor, and front and rear wheels 2 and 2 and rear wheels 3 and 3 are provided at the front and rear portions of the body,
The rotational power of the engine 5 in the bonnet 4 is appropriately decelerated by the transmission in the mission case 6 to reduce the front wheels 2 and 2.
And the rear wheels 3 and 3.

A hydraulic cylinder case 7 is fixedly provided on the upper rear portion of the mission case 6. Hydraulic cylinder case
A single-acting hydraulic cylinder 8 is provided in the space 7, and lift arms 9 are provided on both left and right sides of the hydraulic cylinder case 7.
9 is pivotally supported. A rotary tiller 14, which is an example of a working machine, is vertically movably connected to the rear end of the three-point link mechanism 12 including the top link 10 and the lower links 11 and 11, and the lift arms 9 and 9 and the lower arms. The lift rods 15 and 15 are interposed and connected between the links 11 and 11. Reference numeral 20 is a position operation lever, and a tractor-1 is provided on a rotation base of the position operation lever 20.
A position setter (not shown) for setting the ground height of the working machine connected to the rear part of the working machine is attached, and on the other hand, the turning base of the one-sided lift arm 9 also has its turning angle, that is, the working machine. A position sensor 23 for detecting the height is attached, and the lift arms 9 and 9 are rotated to a position set by the position operation lever 20 and are stopped at that position. Le system is constructed.

The rotary cultivating device 14 connected to the rear part of the machine body will be briefly described below. The rotary cultivating device 14 includes a cultivating part 34 and a main cover 35 which covers the cultivating part 34 from above. And a rear cover 36 and the like which are pivotally attached to the rear portion of the main cover 35 so as to be freely rotatable.
The lower end of the cover 36 is slidably contacted with the ground to elastically press the plowing soil surface so that the surface of the tilled soil is elastically pressed. The rear end of the upper portion of the main cover 35 detects the rotation angle of the rear cover 36. A depth sensor 37 is provided.

In the figure, reference numeral 24 is a PTO shaft, 26 is a fuel tank, 28 is a Doppler sensor attached to the lower abdomen of the tractor 1, and detects the ground speed of the tractor-1. In addition to the Doppler sensor 28, the tractor-1 includes an engine rotation sensor 30 that detects the rotation of the engine 5, a PTO rotation sensor 31 that detects the rotation of the PTO shaft 24, and an amount of fuel in the fuel tank 26. A vehicle speed sensor 33 is provided which detects the number of revolutions of the fuel sensor 32 and the rear wheels 3 and 3 for detection and converts the number of revolutions into a vehicle speed.

FIG. 2 is a block diagram showing the relationship between the controller 40 on the machine side, various sensors, and a monitor 42 for displaying the detected values of the sensors. Although not shown in this block diagram, on the input side of the controller 40, in addition to the sensor, a plowing depth setting device for setting the plowing depth, and a ground height for setting the ground height of the working machine. A setting device is connected, and an ascending / descending solenoid that drives a control valve for elevating and lowering the working machine is connected to the output side of the controller 40.

When the position control is performed, the ascending or descending solenoids are excited so that the lift arms 9 and 9 are positioned at the height set by the position operation lever 20, while the depth control is performed. At this time, the ascending or descending solenoid is energized so that the rotary tilling device 14 is positioned at the depth set by the tilling depth setting device.

Normally, position control or depth control is performed. However, when notifying the operator of the value detected by each sensor during work, the situation is displayed on the display section 43 of the monitor 42. It FIG. 3 is a monitor block diagram. The monitor main body is provided with a CPU 44, and an operation key 45 is provided.
Are connected to the CPU 44 via an input interface 46. Reference numeral 48 is a communication interface, which is connected to the controller 40 on the unit side via the communication line A, and is constructed so that the values detected by the respective sensors on the unit side are displayed on the liquid crystal display unit 43. ing. 49 is an output interface, 50
Is RAM built in the main body, and 51 and 52 are card-type R
Among the AM and the ROM, the card type RAM 51 has a backup function and is used for data storage. That is, the data detected by each sensor or the data obtained from the sensor is inserted into the monitor 42 device.
The calculation processing is performed in accordance with a predetermined control program of the ROM 52 of the drive type, and as a result, for example, the working time, the working area, etc. are stored in the RAM 51.

The card-type ROM 52 stores a control program corresponding to each sensor.
A program for displaying the tractor sensor information on one card, that is, a value detected by a sensor for a small, medium or large tractor (including an option), or an arithmetic processing based on that value A display program for displaying the result on the monitor is stored.

FIG. 4 shows a map of a memory storing the data type of the tractor-side controller 40.
Along with the model or model code, the controller 40
What kind of sensor is mounted on the tractor equipped with is recorded in the corresponding address according to the type of each sensor. In this embodiment, for example, "1" is stored when the sensor is provided, and "0" is stored when the sensor is not provided.

FIG. 5 shows a memory map of the card type ROM 52, in which programs corresponding to the respective sensors are stored. Next, the operation will be described based on the flowchart of FIG. The key switch of the tractor 1 is turned on to turn on the power supply circuit, and the operation key 45 of the monitor 42 is pushed to check communication with the controller 40 on the machine side. If communication is not possible, "communication error" is displayed on the display section 43 of the monitor 42 (step S4), and if communication is possible, a predetermined switch F1 of the operation key 45 is pressed to control the controller 40. Requesting that the model or model code be transmitted, and determine the model or model (step S
5). In the case of this example, since the model is a tractor, the process proceeds from step S6 to step S8. Here, in other words, what kind of sensor information the tractor-1 has for the controller 40, in other words, A request is made for what kind of sensor is attached (step S8).

When the sensor information of the tractor is transmitted from the controller side, its type is temporarily stored in the storage device RAM 50 of the monitor 42 (step S9). When a control program desired by the operator is selected by operating the operation key 45, the selected monitor program is started. For example, when "fuel consumption rate" is selected, the fuel tank 26 is stored. The attached sensor detects the fuel consumption rate, calculates the fuel consumption rate per unit time according to the control program, and displays the result on the display unit 43 of the monitor 42.

When the operator selects the "slip rate" display, the vehicle body slip rate is calculated based on the data detected by the Doppler sensor 28 and the vehicle speed sensor 33, and the display section 43 of the monitor 42 is operated. To display. Hereinafter, by the operator appropriately switching a predetermined key of the operation key 45, other sensor information can be displayed according to the program corresponding to the sensor.

As described above, according to this embodiment, the controller 40 of the tractor-1 and the monitor 42 are connected to the communication line A.
By activating the program selected by the operator from the program card ROM 52 inserted in the monitor 42 and connected to the monitor 42, and the sensor on the controller 40 side of the tractor 1 is connected via this communication line A. Since the information can be easily retrieved, the user having several tractors can utilize the sensor information of all the tractors at the time of agricultural work by preparing a single monitor 42, which is extremely convenient. Become.

[0019]

As described above, the present invention is
This side controller connected with various sensors on the input side and the actuator on the output side, display means for selectively displaying various control information from the side of this machine side controller via the communication line, and various controls A card type storage medium storing a program for displaying information is started, and a program corresponding to each sensor stored in the card type storage medium is started using the communication line. Since it is a monitor device for an agricultural machine characterized by displaying the sensor information and the like on the display means, it is possible to easily display the sensor information of the sensor included in one agricultural machine, and to attach it later. Since it is possible to deal with the generated sensor without any problem, it is possible to reduce the cost of the entire apparatus, and to provide an inexpensive and convenient monitor apparatus for the user.

[Brief description of drawings]

FIG. 1 is a side view of a tractor and a rotary tiller.

FIG. 2 is a diagram showing a connection relationship between a tractor-side controller and a monitor.

FIG. 3 is a block diagram of a monitor.

FIG. 4 is a memory map diagram showing the types of controller data.

FIG. 5 is a memory map diagram showing the contents of a ROM card.

FIG. 6 is a flowchart for explaining the contents of a display program.

[Explanation of symbols]

 1 tractor 2 front wheel 3 rear wheel 8 hydraulic lifting mechanism 23 position sensor 28 Doppler sensor 30 engine rotation sensor 31 PTO rotation sensor 32 fuel sensor 40 controller 42 monitor 43 display section

Claims (1)

[Claims] 1. A display for selectively displaying various sensors on the input side and a controller on the output side connected to an actuator and various control information from the controller side on the input side via a communication line. Means and a card-type storage medium that stores a program for displaying various control information. By utilizing the communication line, individual sensors stored in the card-type storage medium can be used. A monitor device for an agricultural machine, characterized in that a corresponding program is activated to display sensor information and the like on the display means.