JPH03245300A - Control checker for agricultural work or the like - Google Patents

Abstract

PURPOSE:To make the operation of a control checker simple ad easy by providing a means at the control checker so as to automatically select the system of communication between a controller and the checker. CONSTITUTION:A control checker 2 is linked to a controller 1 in the main body of a work machine by a cord and set in a certain state so as to execute serial communication. Then, a check operation is executed on the checker 12 side. With the start of the check, an automatic communication system selecting means 3 of the checker is operated and plural various communication systems set in advance are automatically switched. When automatically selecting a communication system I or II, while executing the prescribed diagnosis processing of a sensor or an actuator, etc., in the device I designated by a designation key 5 according to each communication system, the contents of the check and a checked result, etc., are displayed on a display part 6. Thus, the operation of the checker 2 can be made simple and easy.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a control checker for checking the control section of agricultural machinery, etc., such as a combine harvester, a seedling planting machine, a tractor working machine, or a rice hulling machine. Available.

(Prior Art and Problems to be Solved by the Invention) A combine harvester incorporates a microcomputer to control the cutting height so that the cutting height of the grain culm by the reaping device is maintained constant, and to move the harvested husk to the threshing device. Handling depth control to keep the tips of the grains supplied to the threshing room at a constant depth while being transported to the threshing room, direction control to move the combine harvester along the rows of culms, etc. It has various control device sections such as horizontal control that maintains the vehicle body on which the threshing device etc. is mounted horizontally in the left-right and front-rear directions, and threshing control that controls the sorting wind force and swing sorting state of the threshing device. There is.

The control devices for each of these parts are controlled before or during work.
It is necessary to check whether the control is working correctly, but for this check, one ROM card is compatible with multiple types of control devices, but the communication method differs depending on the control device. Therefore, it is necessary to replace the ROM card with another ROM card compatible with this method, or to manually switch and select the communication method, which makes the operation complicated.

Therefore, the present invention solves the above-mentioned defects by automatically selecting the communication method of the checker.

(Means for Solving the Problem) The second invention provides a checker 2 that executes a check while receiving information transferred from a control device 1 of a work machine that controls work through serial communication. This is a control checker for agricultural machinery, etc., which is provided with communication method automatic selection means 3 for automatically selecting a communication method between 2 and 2.

(Operation and Effects of the Invention) The checker 2 is connected to the control device 1 of the working main machine by a cord to enable serial communication. The checking operation is performed on the checker 2 side. When the checker 2 starts checking, the automatic communication method selection means 3 of the checker operates and automatically switches between a plurality of different communication methods set in advance. When the communication methods match, the checker 2 diagnoses the control device 1. Perform processing.

In this way, the checker 2 performs check diagnosis processing on each control unit of the control device 1 while automatically switching the communication method, so that the control device 1 of the work main machine can be connected to two or more different communication methods. Even if there is a problem, the check process is automatically performed and the operation of the checker 2 can be simplified and facilitated.

(Example) On the concave side, taking a combine harvester working machine as an example, a control box 4 included in the combine machine is equipped with a control unit R1 that controls each part of the combine with a macro control unit, and sensors and controls for each part are installed. It is configured to control the working part in relation to actuators and the like.

Examples of each control section include a cutting height control device that raises and lowers the reaping device relative to the vehicle body to maintain a constant reaping height of the grain culm, and a cutting height control device that controls the reaping device to maintain a constant reaping height of the grain culm. A plate temperature control device that feeds the grain to the threshing chamber of the device at a constant depth for threshing, and a direction control device that steers and controls the cutting direction so that it follows the rows of culm rows are set as the communication method (■). This communication method I has a configuration in which a pulse synchronization signal is oscillated from the control device 1 side to the checker 2 side, and diagnostic processing is performed based on this synchronization signal.

In addition, the control device 1 is configured to control the vehicle body regardless of the slope of the driving ground.
A threshing control device, etc. that performs horizontal control to maintain the horizontal state in the left-right direction or front-back direction, and controls the swinging angle and number of swings of the swinging sorting shelf of the threshing device, the wind power of the sorting winnowing machine, etc. is set as the communication method (2), and the difference from the communication method (2) is that it is configured to be able to communicate with the checker 2 without having a synchronization signal.

The checker 2 has a microcomputer incorporated therein, and is equipped with a designation key 5 for selecting a control device to be checked as described above, and a display section 6 for digitally displaying check items, check results, etc. There is. During a check operation, the checker 2 and the control box 4 are communicably connected by a cord 7.

The automatic communication method selection means 3 of the checker 2 automatically switches between communication methods I and ■ as shown in FIG. Sensors at the control device, results, etc. are displayed on the display unit 6.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, with FIG. 1 being a block diagram and FIG. 2 being a flowchart of a part of the checker. (Explanation of symbols) 1 Control device 2 Checker 3 Communication method automatic selection means

Claims (1)

[Claims] The checker 2, which executes the check while receiving information transferred from the control device 1 of the work machine that controls the work, via serial communication, has an automatic communication method that automatically selects the communication method between the control device 1 and the checker 2. A control checker for agricultural machinery, etc., which is provided with a selection means 3.