JPH01273109A - Checker for combined harvester and thresher or the like - Google Patents

Abstract

PURPOSE:To prevent an erroneous diagnosis by displaying simultaneously both input systems on a display part, when an input system is different from an actual input system, in an input system of a check display item. CONSTITUTION:If the left and the right connections of direction sensors 11a have been mistaken, the left and the right input signals of the direction sensors 11a change places with each other and inputted to an automatic controller 2, and even if the left direction sensor 11a which is displayed, based on a check item on a display part 3 of a checker 15 is operated artificially, turn-on/turn-off flickering for showing its operating state is not displayed, instead of which the right input signal of the direction sensor 11a is sent to the checker 15. Accordingly, with respect to this input signal, by displaying not only the left of the direction sensor 11a but also the right of the direction sensor 11a on the display part 3, an abnormal state caused by an erroneous connection can be diagnosed quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a checker for a combine harvester, etc., and the present invention relates to a checker for a combine harvester, etc., which diagnoses abnormalities in the control circuit system of a combine harvester, etc. that performs automatic control action, in an interactive state using serial communication. Available.

Conventional technology A control circuit system for a combine harvester, etc., in which an automatic control device receives input information transmitted by an input system consisting of a large number of sensors, etc., and performs an automatic control action through arithmetic processing by the automatic control device based on this reception. When diagnosing abnormalities in the control circuit system, a separately prepared dialogue-type checker using serial communication is connected to the automatic control device, and automatic control is performed from a large number of sensors via harnesses. The automatic control device sends the non-working state signal input to the device to the checker via serial communication, and displays the check items sequentially on the checker's display in text and graphics, allowing dialogue with the worker. Recently, attempts have been made to check abnormality diagnosis based on the shape.

Problems to be Solved by the Invention However, when checking abnormality diagnosis using such a checker, 1. For example, if multiple sensors located close to each other are wired incorrectly, or if the wiring of the harness is incorrect. etc.

Since the sensor input system signal is not input to the normal input position of the automatic control device, even if the sensor input system displayed on the checker's display based on the check items is artificially activated, the display will not display on the display. Since the sensor input system that is currently being used is different from the sensor input system that is actually used, there is no change in the displayed content to indicate the operating state, which may lead to incorrect diagnosis that indicates that the sensor is in an abnormal state. There was a problem in that it was easy to perform, but it hindered accurate abnormality diagnosis.

Therefore, in the present invention, when diagnosing an abnormality of a sensor input system using a checker, if the sensor input system displayed by the above-mentioned check items is different from the sensor input system actually operated.

The different sensor input systems are displayed together with the sensor input systems based on the check items.

In the checker that checks the input system of the automatic control device M (2) of the machine while sequentially displaying the input information on the display section (3), inputting this check display item When the system differs from the actual input system, the system is configured as a checker such as a combiner, which is characterized by displaying these actual input systems on the display section (3) at the same time.

Functions and Effects of the Invention Signals from a large number of sensors placed on the body of a combine harvester etc. are input to the automatic control device (2) via a harness, and this automatic control device! ! In a control circuit system that performs an automatic control action through arithmetic processing in (2), if an abnormality occurs in the signal processing of the sensor input system input to the automatic control device (2>), the automatic control device (2> ) from the outside of the aircraft.

An interactive checker using serial communication is connected with a checker cable, etc., input information in a non-working state is sent to this checker via serial communication, and the check items are sequentially checked according to the preset order of check items by operating the operation switch (1). The display unit (3) displays characters, figures, etc., and allows the operator to check the abnormality diagnosis while interacting with the operator.

However, when checking according to a preset order like this, there may be cases where, for example, multiple sensors located close to each other are wired incorrectly, or the harness wiring is incorrect. In some cases, the signal of the sensor input system is not input to the normal input position of the automatic control device (2), so the sensor input system displayed on the display section (3) according to the order of the check items is changed manually. When the sensor input system is activated, there is no change in the display on the display section (3) indicating the operating state of this sensor input system, and a different sensor input system is sent to the checker instead. By displaying these different sensor input systems together with the display of the sensor input system displayed according to the order of the check items, if the sensor input system displayed on the display section (3) based on the check items, Even if this sensor input system is different from the sensor input system when it is actually applied artificially, it is difficult to diagnose which part of the sensor input system is in an abnormal state as in the past. This eliminates the possibility of erroneously diagnosing that the sensor itself is in an abnormal state, and allows prompt and accurate abnormality diagnosis.

In the embodiment, a combine harvester for harvesting grain, etc. will be exemplified.

A traveling device (5) with running rollers (4) arranged on the left and right sides, and a threshing device (6) placed on the traveling device (5) to thresh the harvested culm and sort and collect grains. , this threshing equipment M
A reaping device M (7) at the front of the threshing device M (6) for reaping the vertical culm and transferring it to the threshing device (6), and an operation to control the operation of the combine harvester at the − side of the threshing device M (6). A device (8) and an operation seat (9) for this operation are arranged to constitute a combine harvester body (11).

Further, the operating device 11B) is configured to include an automatic control device M(2) which mainly includes a CPU and performs arithmetic processing based on input information from an input system including a large number of sensors OD and the like.

Further, a plurality of weeding bodies 0δ for weeding the standing hair culms are provided at the front end of the reaping device (7) in correspondence with the standing hair culm rows, and in the left end side weeding body (12a) of the cutting weight, Wire-like antennae protruding from the left and right sides with arbitrary receding angles contact the culm and rotate backwards to turn the contact ON/OFF.
A direction sensor (lla) is provided to perform copy steering control.

Further, a culm sensor (11b) is provided on the culm inlet side of the transfer device 1 (+3) for transferring the reaped culm of the reaping device (7) and turns the contact point ON/OFF depending on the presence or absence of the culm. .

In addition, the input system consisting of these sensors (lla), (llb), etc. is connected to the automatic control device (2) via a harness.
is connected to the input side of the aircraft, and the aircraft (I[I
An electromagnetic valve 04, etc., which operates the control action using hydraulic pressure or the like, is connected via a harness.

In addition, the input system sensors (lla) and (llb
), harness, and the automatic control bag N(2) to diagnose abnormalities in the control circuit system.
It is constructed into a single box that can be carried separately.

Also, inside this checker a9, there is a CPU
This CPU (IQ) is equipped with a display unit (3) that displays the check status in letters and figures when checking the 1 diagnosis, and a plurality of operation switches (1) that select each check item. , connect the IC card device 31r71 for setting the check item program of the target model, and the connection terminal (to) for connecting to the power switch (18) for turning on/off the power of the checker +19 and the connection terminal (to) for connecting to the power switch (2) for the automatic control device. At the same time, checker (panel section 19)
), these display sections (3), and multiple operation switches (1
), a power switch aa, a connection terminal (to), etc. are arranged, and an insertion slot for inserting the IC card device M (an IC card R+1 having a program stored in it) is arranged on its side surface.

In addition, the automatic control device (2) is provided with a connection terminal for abnormality diagnosis check, and the checker cable (
2) to configure the connection.

In the combine harvester configured as described above, when the machine TI[I is in a non-working state with all the devices stopped,
Automatic control device (2) by checker cable (2)
Checker 0Ij connected to this checker 09
IC card 2+1 from the insertion slot of the IC card device (5)
After confirming the model to be checked with the checker (with one power switch Oa turned on and the IC card), insert the direction sensor (lla) and the culm sensor (11b).
After the input information of the input system including these harnesses is input to the automatic control bag N(2) and subjected to arithmetic processing, it is transmitted to the checker 09 via serial communication.

Based on this transmitted information, a plurality of operation switches (1) are operated to sequentially select check items. For example, when the direction sensor (lla) is selected, this direction sensor (1) is selected.
1a) is displayed on the display section (3) as shown in Fig. 4, and if the direction sensor (lla) is manually operated to turn it into the ON state when this display is displayed, the ON display character will blink and the OFF state will be displayed. If this is the case, the normal state and abnormal state can be easily determined based on the form of interaction with the operator, using the blinking of the OFF display characters as a criterion for determining the normal state.

When checking such an abnormality diagnosis, for example, when removing and attaching the weeding body (12a) for disassembly and maintenance of the reaping bag ¥1 (7), the direction sensor located on the weeding body (12a) is (11a) will also have to reconnect the harness, but if you mix up the left and right connections of the direction sensor (lla), the left and right input signals of the direction sensor (11a) is the automatic control device (2
), and even if the left side of the direction sensor (11a) is displayed on the display section (3) based on the check items, the operating state will be shown even if the left side of the direction sensor (11a) is manually operated. ON/OFF blinking will not be displayed, and instead the input signal on the right side of the direction sensor (11a) will be sent to the checker (l!9), so this input signal will be sent to the display section (11a).
3) By displaying the right side of the direction sensor (11a) along with the display on the left side of the direction sensor (11a) as shown in FIG. 5, the abnormal condition caused by the incorrect connection can be immediately detected.

Moreover, it is possible to perform accurate diagnosis.

Furthermore, as mentioned above, the sensor input system that is displayed on the display section (3) based on the check items is different from the sensor input system that is actually applied artificially.
The incoming call status is displayed at the same time.

Misconnection, incorrect wiring, short circuit between lines, etc. are assumed.

[Brief explanation of the drawing]

The figures show an embodiment of the invention, and Fig. 1 is a slope view;
Figure 2 is a block diagram of the electric circuit, Figure 3 is an operational configuration diagram,
4 and 5 are character representations of the active layer, and FIG. 6 is a side view. In the figure, reference numeral (11) indicates an operation switch, (2) indicates an automatic control device, and (3) indicates a display section.

Claims (1)

[Claims] Communication between the checker (15) and the automatic control device (2) is used to diagnose abnormalities in the input system (2) of the automatic control device of the work machine, and the input information of the automatic control device (2) is displayed on the display section (3).
In the checker that checks while displaying sequentially,
A checker such as a combine harvester characterized in that when the input system of the check display item is different from the actual input system, both of these input systems are displayed simultaneously on the display section (3).