JPH01125403A - Controller for mobile type bridge erection device - Google Patents

Abstract

PURPOSE: To reduce a load of an operator, and prevent wrong operation, by providing a memory circuit for memorizing a state of a sensor and an input circuit of the sensor in a control device, by comparing the two with each other to automatically select a following operation, and by displaying the operation. CONSTITUTION: Detecting output of a position sensor 20 is sent from a position sensor input circuit 31 to an arithmetic circuit 33, and is sent to a comparator 81. Output of a sensor state memory circuit 80 is input to the comparator 81, and a corresponding one is sent to a switching circuit 82 after the two are compared with each other. Furthermore, a signal from a switching input circuit 60 is compared with a signal from a signal display content calculating circuit 61, and either of signals is selected to send to a display content selecting circuit 62. The signal is continuously displayed in a display part 70 via a display content output circuit 64.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to the control of mobile bridge construction equipment.

[Prior art] Figure 3 shows a conventional mobile bridge construction device (hereinafter referred to as “construction device”).
(abbreviated as ).

A position sensor 20 and a solenoid valve 21 are installed in the erection device 10 in the same area. The output signal of the position sensor 20 is 1il
Position sensor input circuit 31 and calculation circuit 3 of l″m device 30
3. Displayed on the display 41 in the operation panel 40 via the display drive circuit 34. When the operator of the erection device 10 outputs a display signal to the control device 30 using the display operation switch 50 of the operation panel 40, the switch input circuit 60 and the display content calculation circuit 61 designate the display content. The display content selection circuit 62 selects the display content read out from the display content storage circuit 63 and outputs it to the display 70 through the display content output circuit 64 for display.

The operator checks the status of the display device 41.70 and the installation H position 10, and then commands the next operation from the switch 42 on the operation panel 40. The command signal is transmitted to the solenoid valve 21 through the switch input circuit 35, arithmetic circuit 33, and solenoid valve drive circuit 32 of the controller 30, and operates the construction apparatus 10.

Then, the operator repeatedly performs the above operations in accordance with the erection or removal operations.

[Problems to be Solved by the Invention] In the above-mentioned conventional technology, the operator determines the content of the next operation to be performed from the status of the erection device and displays it on the display. However, the above judgment can be complicated, and since this judgment is made for each operation, it takes a long time to construct or dismantle the structure, requires skill in judgment, and can cause operational errors. obtain.

The present invention has been made in view of the above-mentioned circumstances, and provides a mobile bridge construction device that can automate the decision-making operations performed by the operator to reduce the burden on the operator and shorten the time required for operation. The purpose is to provide controlled equipment.

[Means and effects for solving the problem] The present invention has a memory circuit for storing sensor states and a sensor input circuit in a control device, and by comparing these, it is possible to determine the next operation to be performed. is automatically selected from the display content storage circuit and displayed on the display, so that the operation performed by the operator is made open-circuit.

"Example" An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows its configuration, and since the basic configuration is the same as that in FIG. 3 above, the same parts are given the same reference numerals and the explanation thereof will be omitted.

The detection output of the position sensor 20 is sent from the position sensor input circuit 31 to the arithmetic circuit 33/\\ and is also sent to the comparison circuit 81. The comparison circuit 81 also receives input from the sensor state storage circuit 80 , compares them for coincidence, and sends the matched ones to the switching circuit 82 . The switching circuit 82 is interposed between the display content storage section 61 and the display content selection circuit 62, and is configured to convert signals sent from the display content calculation circuit 61 and the comparison circuit 81 in accordance with signals from the switch input circuit 60. The display content selection circuit 62
Send to.

The following FIG. 2 shows a specific example of the configuration of the display content calculation circuit 61, sensor state storage circuit 80, etc.

In the display content calculation circuit 61, the erection signal 61a and the withdrawal signal 61b are connected to a flip-flop (hereinafter referred to as IF, FJ).
(abbreviated as ) 61e set terminal S1 reset] ~ terminal R
are input respectively. Further, the previous screen signal 61c and the next screen signal 61d are input to the counter 61f. This counter 61f is an up/down counter, and counts down in response to the previous screen signal 61C and counts up in response to the next screen signal 61d.

The contents of F and F61e and the contents of the counter 61f are both input to the adder 61Q, and the addition result is determined as the display contents and is sent to the switching circuit 82.

On the other hand, the sensor state storage circuit 80 includes a first sensor state register 80a to an Nth sensor state register 80n which store various states of the position sensor 20 in advance, and all of their contents are stored in the comparison circuit 81. sent to. The comparison circuit 81 selects the position sensor input circuit 3 from among the sensor status signals sent from the sensor status storage circuit 80.
The IDs that match the sensor input sent from 1 are extracted by comparison and judgment, and sent to the switching circuit 82.

The switching circuit 82 switches and selects the display content sent from the display content calculation circuit 61 and the sensor state sent from the comparison circuit 81 according to the switch input from the switch input circuit 60, and selects the display content sent from the display content calculation circuit 61 and the sensor state sent from the comparison circuit 81. Output. The display content selection circuit 62 selects the first display content 63a stored in the display content storage section 63 based on the output from the switching circuit 82.
- Select one of the Nth display contents 63n, send it to the display contents output circuit 64, and display it on the display 70.

[Effects of the Invention] As described in detail above, according to the present invention, the possible sensor states of the erection device are compared with the sensor input indicating the actual situation of the erection device, and a display corresponding to a match is displayed. By selecting and displaying the content from the display content memory circuit, the next operation to be performed is automatically selected from the display content memory circuit and displayed on the display, making it easier for the operator to make decisions. It is possible to provide a control device for a mobile bridge construction device that can be simplified, reduce the burden, and shorten the time required for operation.

[Brief explanation of the drawing]

1 and 2 show one embodiment of the present invention, FIG. 1 is a block diagram showing the overall configuration, FIG. 2 is a block diagram showing the detailed configuration of a part of the circuit in FIG. 1, FIG. 3 is a block diagram showing the configuration of the control &[1] of a conventional mobile bridge construction device. 10... Erection equipment, 11.12... Bridge body, 13...
- Vehicle, 14... Main jib, 20... Position sensor, 21... Solenoid valve, 30... Control device, 31...
Position sensor input circuit, 32... Solenoid valve drive circuit, 33
... Arithmetic circuit, 34 ... Display drive circuit, 35, 6
0...Switch input circuit, 40...Operation panel, 4
1゜70...display, 42...switch, 50...
・Display specification switch, C1...display content calculation circuit, 6
2...Display content selection circuit, 63...Display content storage circuit, 64...Display content output circuit, 80...Sensor state storage circuit, 81...Comparison circuit, 82...Switching circuit. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Scope of Claims] A position sensor that detects the state of a mobile bridge construction device, a sensor state memory circuit that stores various possible states of the sensor, and a sensor state memory circuit that stores various possible states of the sensor, and the sensor state memory circuit according to the detection output of the position sensor. a display content storage circuit that stores various control operation details of the mobile bridge construction device; and a display content storage circuit that selects and outputs the content of the mobile bridge construction device according to the selection output of the first selection unit. a second selection means for selectively outputting the control operation contents of the mobile bridge construction apparatus stored in the memory; and a display control means for displaying the control operation contents of the mobile bridge construction apparatus which are the second selected output. A control device for a mobile bridge construction device, characterized by comprising: