JP3447566B2 - Inching operation control system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inching operation control system for a plurality of operating end devices by an operating device.

[0002]

2. Description of the Related Art In a conventional device, a signal for control is sent from an operation device to an operating end device each time inching operation control is required. Therefore, the operation device and the operation device are operated each time a signal for control is sent. The end device needs to resynchronize for reliable signal transmission, and the time ratio for this initial synchronization is large. With such a configuration, there is an advantage that the configuration of the device is relatively simple when the number of operation terminals is small or the number of operation items is small.

[0003]

However, the conventional method has a problem that if the number of operating terminals or the number of operating items that need to be operated per unit time increases, the line congestion for the control signal increases and it becomes impossible to deal with the problem. . The present invention has been made in view of this point, and instead of the large required time for initial synchronization required in the conventional method, by adopting a method of maintaining synchronization in a short time, the operation work of the operating end can be performed. It is intended to provide an inching operation control system capable of smoothly responding to congestion.

[0004]

The inching operation control system according to the present invention receives control information for an inching operation, converts it into a drive signal for controlling an operation end, and controls the operation end, an inching operation. When there is a control information generation device for operation, a transmission signal generation device having a synchronization signal and a time slot in which this synchronization signal is followed by a signal of a predetermined time width, when there is a synchronization signal and inching information, An operation device having a sending device for periodically and repeatedly sending this inching information on the sending signal, and a communication line connecting the operating device and the operating end device. When the inching signal is generated, the end devices are periodically and repeatedly connected by the sending signal. Put the outgoing signal, so as to transmit to a predetermined operation end device, by reducing the percentage of time for synchronization is obtained by the cope even when the operation control congestion.

Further, the transmission signal is a cyclic signal which is repeatedly transmitted at a constant cycle, has a predetermined frame length, and has a header portion for arranging a signal mainly used for maintenance synchronization and an operation event. If the information related to (1) is included in the frame, the number advances, and if not included, the event number part in which the event number is arranged and the operation signal in which the operation signal related to the content of the operation event is arranged In addition, the operation signal unit has a configuration in which the number of the operation end device that receives the operation signal and the data related to the operation signal are arranged so that a predetermined signal can be sent and received in a short time. . Furthermore, 1
The frame signal is composed of one or a plurality of header parts, one or a plurality of event number parts, and an operation signal part for a plurality of operation end devices, so that operation control of the plurality of operation end devices can be performed. It is the one.

Further, the operating end device has a mechanism for detecting the state of the operating end changed by the inching operation and sending out the operating end information, and the operating device is based on the operating signal for the inching operation and the operating end information. hand,
As a configuration for generating inching information for inching operation control, operation control according to the state of the operating end can be performed.

Further, the signal of one frame is composed of one or a plurality of header parts, one or a plurality of event number parts, an operation signal part for a plurality of operation end devices, and a plurality of operation end information parts. The signal from the operating end device can be sent to the operation device within a short time.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiment 1 of the present invention will be described below with reference to the drawings. Figure 1
1 is an overall configuration diagram of an inching operation control device according to the first embodiment. In FIG. 1, reference numeral 1 denotes a control unit 11 that processes an overall operation control signal of the inching operation control system to perform necessary display, sends an operation signal to an operation end, and performs a necessary display for inching operation. It is a display control device that constitutes an operation device including a display unit 12 and a console 13 that receives a control signal from an operator. FIG. 2 is a configuration diagram of the control unit 11, which includes an operation control unit 111 that performs an operation for inching operation and a control signal generation, a transmission signal generation unit 112 that generates and transmits various transmission signals, and a communication line 2. Interface unit 1 for interfacing with
13, a display control unit 1 for generating a display signal to the display unit 12
It is composed of 14. Further, the operating end device 3 includes an interface unit 31, a received signal detection unit 32 that detects a signal from the received signal display control device 1, a drive signal generation unit 33 that generates a signal for driving the operating end from the received signal, It is composed of an operation end portion 34 which is a target of an inching operation.
With the above configuration, the control information for the inching operation is controlled based on the control signal sent from the operator via the console 13 and the information relating to the control conditions of the inching operation accumulated in the arithmetic control unit 111. The information is generated by the arithmetic and control unit 111 that constitutes the information generation device, and is transmitted to each operating end device 3 via the interface unit 113 that constitutes the transmission signal transmission device.

Next, the operation will be described. From the display control device 1 to the operating end device 3, as shown by the arrow line in FIG.
The signal is sent out with a constant repetition period. N with a suffix indicates an event number, which may or may not be stepping, and will be described later. Each signal has a configuration corresponding to the operating-end operating device displayed on the display unit, and FIG. 4 is an example of a system in which four operating-end operating devices are temporarily displayed on the display unit. Figure 4
As shown in (1), the header section is arranged in the time slot T1, the event number signal is arranged in the time slot T2, and the operation signal is arranged in the time slots T31 to T34. Further, a designated operation end number for identifying the operation end portion 34 is arranged in the time slot T31A, and a designated operation end data serving as control data is arranged in the time slot T31B. Similarly, in the time slots T32 to T34, respective designated operation end numbers and designated operation end data are arranged. The designated operation end data is 32
It is designed to transmit analog information that changes in multiple stages as a bit structure. Such a signal is repeatedly sent periodically. Further, the operating end device 3 detects the header signal and always maintains the synchronization state with the signal of the display control device 1.

Further, when the event number signal of the signal sent from the display control device 1 to the operating end device 3 at a constant repetition cycle includes the operation information for any of the operating end devices, that number. Is transmitted based on the promise of not advancing, otherwise it is transmitted based on the promise that each operating end device is monitoring the event number signal and only when there is a progress, the operating signal addressed to its own operating end device. The reception signal detection unit 32 verifies the presence or absence of. When an operation signal addressed to its own operation end device is sent, the drive signal generation unit 33 generates a drive signal and drives the operation end unit 34.

Each element shown in FIG. 5 is displayed on the display device 12 so that the operator can assist the inching operation smoothly. In the example shown in FIG. 5, the information of the operating end displayed on the display unit for each of the four operating end devices and the information indicating that the operating end is being operated by the operating device are displayed. That is, the current state of the operating end device is displayed in the current value display area. A new set value for inching operation is displayed in the new set value display area. In the control start time display area, the time to start inching toward a new set value is set.
Since the inching operation control system shown in FIG. 1 adopts the feedforward control method, these display contents are performed based on the data held by the arithmetic control unit 111. Instead of the control start time, the inching start condition can be set and displayed. The information relating to the set conditions is processed by the arithmetic and control unit 111 to generate a signal for inching operation control, and the signal is sent to the operation end device for control. The display content is not limited to this, and can be selected from the information held by the arithmetic control unit. Since the state can be accurately grasped by displaying the visually recognizable information on the display device 12 as described above, it is very effective in smoothly performing the inching operation by the operator.

Embodiment 2. Next, a second embodiment of the present invention will be described. FIG. 6 is an overall configuration diagram of the inching operation control device according to the second embodiment. 6, the same reference numerals as those in FIG. 1 indicate the same or corresponding parts. Reference numeral 35 is a confirmation sensor for confirming the operating state of the operation end portion 34, and 36 is a transmission signal generation portion for transmitting a confirmation signal from the confirmation sensor 35. In addition, FIG.
It is a block diagram of. In FIG. 7, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts. Reference numeral 115 is a signal detection unit that detects the confirmation signal sent from the transmission signal generation unit 36. With the above configuration, the control information for the inching operation includes the control signal sent from the operator through the console 13, the information related to the control conditions of the inching operation accumulated in the arithmetic and control unit 111, and the signal detection unit. 115
Based on the confirmation information or the like from the operating end device 3 obtained through the above, each operating end device 3 is generated by the arithmetic control unit 111 which constitutes the control information generating device and passes through the interface unit 113 which constitutes the transmitting device of the transmission signal. It is being sent to.

Next, the operation will be described. As shown in FIG. 8, a signal is sent from the display control device 1 to the operating end device 3 at a constant repetition period. Each signal has a configuration corresponding to the operating-end operating device displayed on the display unit, and FIG. 9 shows an example of a system in which four operating-end operating devices are temporarily displayed on the display unit. As shown in FIG. 9, time slot T1
The header section signal arranged in the time slot T2, the event number signal arranged in the time slot T2, and the operation signal arranged in the time slots T31 to T34. Further, a designated operation end number for identifying the operation end portion 34 is arranged in the time slot T31A, and a designated operation end data serving as control data is arranged in the time slot T31B. Similarly, in the time slots T32 to T34, respective designated operation end numbers and designated operation end data are arranged. The designated operation end data has a 32-bit structure so that analog information that changes in multiple stages can be transmitted. Since such a signal is periodically and repeatedly sent, the operating-end device detects the header signal and always maintains the synchronization state. Further, operating end information obtained by detecting the state of the operating end is arranged in the time slot T4, and sent from the operating end device 3 to the display control device 1.

Further, when the event number signal of the signal sent from the display control device 1 to the operating end device 3 at a constant repetition period includes the operation information for any operating end device, Since the number is incremented, otherwise it is transmitted based on the promise not to increment, so each operating end device monitors the event number signal and operates only for its own operating end device when there is a step. The received signal detector 32 verifies whether or not a signal has been sent. When an operation signal addressed to its own operation end device is sent, the drive signal generation unit 33 generates a drive signal and drives the operation end unit 34.
Further, the operation end information obtained by detecting the state of the operation end by the confirmation sensor 35 is transmitted to the operation end device 3 by the transmission signal generation unit 36.
To the display control device 1 in the time slot from T4 to T4.

Each element shown in FIG. 10 is displayed on the display device 12 so that the operator can assist the inching operation smoothly. In the example shown in FIG. 10, the information of the operating end displayed on the display unit for each of the four operating end devices and the information indicating that the operating end is being operated by the operating device are displayed. That is, the current state is displayed in the current value display area. The new set value for inching operation is displayed in the new set value display area.
Set the time to start inching toward the new set value in the control start time display area. In addition, the operating end information obtained from the operating end device is displayed in the operating end information display area. Instead of the control start time, a condition for starting inching can be set and displayed. The set conditions are processed by the arithmetic and control unit 111 to generate a signal for inching operation control, and the signal is sent to the operation end device for control. The display content is not limited to this, and can be selected from the information held by the arithmetic control unit. Since the state can be accurately grasped by displaying the information visually on the display device as described above, it is effective in smoothly performing the inching operation by the operator. Although the inching operation is performed by the feedforward type control in the first embodiment, the inching operation by the feedback type control can be performed because the operation end information can be used in the second embodiment.

[0016]

As described above, the inching operation control system according to the present invention receives the control information for the inching operation, converts the control information into a drive signal for controlling the operating end, and controls the operating end, Generation of inching information for this inching operation control, and a sending signal having a synchronizing signal and a time slot for carrying a signal of a predetermined time width following this are periodically and repeatedly generated, and this sending signal is generated. If there is a synchronizing signal and a sending device for carrying the inching information when the inching information is carried, and an operating device, and a communication line connecting the operating device and the operating end device, the operating device and the operation The inching signal is generated while the end devices are repeatedly and repeatedly connected by the sending signal. Case, placed on the feed signal. Thus for transmitting to a predetermined operation end device, by reducing the percentage of time for synchronization, there is an effect that it is possible to cope with the time of operation control congestion.

Further, the send-out signal is a cyclic signal which is repeatedly sent out at a constant cycle, has a predetermined frame length, and has a header part for arranging a signal mainly used for maintenance synchronization and an operation event. If the event information related to the event is included in the frame, the number is incremented, and if not included, the event number part for arranging the event number and the operation for arranging the operation signal related to the content of the operation event are arranged. Along with the configuration of the signal section, the operation signal section has a configuration in which the number of the operation end device that receives the operation signal and the data related to the operation signal are arranged, so that it is possible to exchange the predetermined signal in a short time.
This has the effect of shortening the time width of the synchronization signal for maintaining synchronization. Further, since the signal of one frame is composed of one or a plurality of header parts, one or a plurality of event number parts, and an operation signal part for a plurality of operation end devices, it is possible to control the operation of the plurality of operation end devices. There is an effect that can be.

Further, the operating end device has a mechanism for detecting the state of the operating end changed by the inching operation and sending out the operating end information, and the operating device is based on the operating signal for the inching operation and the operating end information. hand,
Since the inching information is generated for the inching operation control, there is an effect that the operation control according to the state of the operation end can be performed.

Further, the signal of one frame is composed of one or a plurality of header parts, one or a plurality of event number parts, operation signal parts for a plurality of operation end devices, and a plurality of operation end signal parts. Therefore, there is an effect that a signal from the operating end device can be sent to the operation device within a short time.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration diagram of an inching operation control device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a control unit 11 according to the first embodiment.

FIG. 3 is a diagram showing a signal sent from the display control device 1 according to the first embodiment to the operating end device 3.

FIG. 4 is a diagram showing a configuration of individual signals according to the first embodiment.

FIG. 5 is a diagram showing an example of display contents of the display device 12 according to the first embodiment.

FIG. 6 is a diagram showing an overall configuration diagram of an inching operation control device according to a second embodiment of the present invention.

FIG. 7 is a configuration diagram of a control unit 11 according to the second embodiment.

FIG. 8 is a diagram showing signals sent from the display control device 1 according to the second embodiment toward the operating end device 3.

FIG. 9 is a diagram showing an example of display contents of the display device 12 according to the second embodiment.

FIG. 10 is a diagram showing an example of display contents of the display device 12 according to the second embodiment.

[Explanation of symbols]

1 display control device, 11 arithmetic unit, 111 arithmetic control unit, 112 transmission signal generation unit, 113 interface unit, 114 display control unit, 115 received signal detection unit, 12 display unit, 13 console, 2 communication line, 3
Operation end device, 31 interface unit, 32 reception signal detection unit, 33 drive signal generation unit, 34 operation end unit, 35 confirmation sensor, 36 transmission signal generation unit.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G05D 3/00-3/20 G05B 15/00-15/02 H04Q 9/00

Claims (8)

(57) [Claims] 1. An operating end device for receiving control information for an inching operation and converting it into a drive signal for controlling an operating end to control the operating end, a control information generating device for the inching operation, and a synchronization signal. And a device for generating a sending signal having a time slot for carrying a signal of a predetermined time width following this synchronizing signal, and a synchronizing signal and this inching information, if there is inching information operation device, in Lee Nchingu operation control system comprising a communication line connecting between the operation apparatus and the operation terminal device, delivery of periodically repeating from said delivery device having a delivery device for and repeatedly delivered
The signal used is mainly the signal used for maintenance synchronization.
For the header time slot and the cycle of the transmitted signal
Time slot for attached event number signal and operation
For the operation signal where the operation information related to the end operation is arranged
Place the time slot in the frame and
The number of the event number signal added for each cycle of the output signal is
The frame contains operation information related to the operation of the operation end
If it is included, the number is incremented. If not included, the number is incremented.
An inching operation control system characterized by being controlled not to . Wherein the time slot for the operation signal, inching operation control system according to claim 1, wherein the placing the data according to the number and the operation signal of the operation end device for receiving an operation signal. 3. A signal of one frame is composed of one or a plurality of header parts, one or a plurality of event number parts, and zero or a plurality of operation signal parts for operating end devices. inching operation control system according to claim 1 or claim 2. 4. The operating-end device detects the operating signal addressed to its own operating-end device when the event number signal advances, and performs specified operation control. The inching operation control system according to any one of claims 1 to 3 , which is characterized. 5. An operating end device for receiving control information for inching operation, converting it into a drive signal for controlling the operating end to control the operating end, and detecting the state of the operating end and sending out the operating end information. A device for generating control information for the inching operation in which the operation end information is added, and a transmission signal having a synchronization signal and a time slot for successively adding a signal of a predetermined time width to the synchronization signal is generated. hand,
An operation device having a sending device for carrying the synchronizing signal and the inching information, if any, and sending the inching information periodically and repeatedly, and a communication line connecting the operating device and the operating end device are provided .
In Lee Nchingu operation control system, or said delivery device
Signals that are repeatedly transmitted periodically from
Time slot for the header that arranges the signals used in the
And the event number signal that is added to each sending signal cycle.
No. time slot and operation related to the operation of the operating end
Time slots for operation signals where information is placed, and operations
A tool for detecting the state of the end and transmitting the operating end information.
Place the im slot and the
Event number signal number added for each cycle of the extension signal
Indicates that operation information related to the operation of the operation end is
If included, step forward; otherwise, do not step
Inching operation control system characterized by being controlled as follows. 6. The inching operation control system according to claim 5 , wherein the time slot for the operation signal has the number of the operation end device that receives the operation signal and the data related to the operation signal. 7. A signal of one frame includes one or a plurality of header parts, one or a plurality of event number parts, an operation signal part for zero or a plurality of operation end devices, and a plurality of operation end information parts. 6. The method according to claim 5 , characterized in that
Is an inching operation control system according to claim 6 . 8. The operation end device detects the operation signal addressed to its own operation end device when the event number signal advances, and performs specified operation control. The inching operation control system according to any one of claims 5 to 7 , which is characterized.