JP2973571B2 - Operation control method in grain drying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control method for a grain drying apparatus.

[0002]

2. Description of the Related Art A plurality of grain drying apparatuses are provided, and individual control panels provided individually and a central control panel are connected to each other, and are arranged on the central control panel while transmitting and receiving control signals or detection signals from detection sections. By operating various setting switches, a setting operation such as a grain filling / drying operation is performed, and an optimal drying preparation operation is performed while monitoring operation states of a plurality of drying apparatuses while being at one place.

[0003]

By the way, it is convenient because a plurality of drying devices are operated by a central control panel. However, the connection between the central control panel and the individual control panels is common to both transmission and reception. Lines are connected in series. For this reason, wiring of transmission / reception signal lines is complicated, and data reliability is lacking.

[0004]

[0005]

For this reason, the present invention provides a plurality of grain drying apparatuses 3, 3... In parallel with each other, and controls the individual control panels 16, 16. In the grain drying apparatus that performs the drying process while transmitting and receiving the control signal, the selection and operation of the grain drying apparatuses 3, 3,... Can be arbitrarily selected and set from the operation state and operation selection screen of the central control panel 12, and the drying operation is performed. Grain types required for
The filling amount, the finish setting moisture and the like are set by the individual control panel 16, and the individual control panels 16, 16
... are connected in series, and the individual control panels 16, 16
... from the receiving line to the central control panel 12 is one line
The operation control method in the grain drying apparatus is configured such that the individual control panels 16, 16,... Are connected in parallel .

[0006]

A plurality of grain drying devices 3, 3... Are provided, and these individual control panels 16, 16.
In the grain drying device that executes the drying process while transmitting and receiving a control signal to and from the control unit 13, the selection and operation of the grain drying device can be arbitrarily selected and set from the operation state and operation selection screen of the central control panel, and In addition, the type of cereal, filling amount, finish setting moisture, etc. necessary for the drying operation are set by the individual control panel, and the central control panel 12 to the individual control panel 16,
16 are connected in series, and the individual control panels 16,
Since the receiving lines from the central control panel 12 to the central control panel 12 are configured so that the individual control panels 16, 16... Are connected in parallel to one line, the individual control panels 16 are set for sorting equipment such as a machine. A switch is provided, and a control number corresponding to the unit is set in advance, and transmission and reception can be performed on the central control panel 12 side based on the control number. .., The wiring can be simplified. On the other hand, the received data is immediately sent to the central control panel 12 by the parallel connection, so that there is an effect that the active data and abnormal data can be processed with priority.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an outline of a grain drying / preparing apparatus, in which grains from a grain receiving hopper 1 are fried by an elevator 2, and a plurality of (four in the figure) grain loading apparatuses 3, 3. 4 can be supplied.

Each of the grain drying apparatuses 3, 3,... Has a two-layer structure in which a cooling tank 5 is provided at an upper portion and a grain drying section 6 including a normal storage tank and a drying section is provided at a lower portion. Is provided to receive the raw rice from the embedding conveyor 4 to the drying unit 6 and circulate and transfer the grain embedded in the grain drying unit 6. Reference numeral 8 denotes a discharge conveyor, which is configured to mainly receive discharged grains from the cooling tank 5 and transfer them to the paddy tank 9.

A discharge elevator 10 is provided between the discharge conveyor 8 and the paddy tank 9. 11 is a huller. Reference numeral 12 denotes a central control panel.
4, a color CRT 15, a converter 17 for connection to individual control panels 16, 16 arranged in each of the drying devices 3, 3,..., A power box for amplifying a signal to drive the equipment and receiving a signal from a detection sensor 18 and so on. A touch panel 19 is formed on the color CRT 15, and the pick signal is input to the control unit 13 via the interface 20.

[0010] The central control panel 12 has normal operation operation functions such as filling, drying, grain movement, discharge, hulling, stop, etc.
It has a function to monitor and display the status of each drying device, customer status, etc., and a data management function. In addition, the drying devices 3, 3 ...
Individual operating condition settings, such as filling amount, finish moisture value, etc.
Are operated by operation of a setting switch, which will be described later, provided on each control panel 16, 16... Of the drying device.

FIG. 1 shows the above CRT 15 screen which can be picked.
The figure shows an example of the surface of a cargo receiving elevator a, NO. 1 to N
O. Drying device b of 4₁~ B_Four, Paddy tank c, paddy machine d, zhang
The layout of the loading and discharging conveyors e and f
Operation switch display section g
A character display section h having a normal content is provided. Each drying device b
₁, B_Two… Is divided vertically into a cooling section and a storage / drying section.
It is a configuration in which the presence or absence of an object can be color-coded. For example, display
Black without grains, green before drying, magenta during drying
Dah, dried is like white. In addition, the condition of the grain
Of water content, grain temperature, drying temperature, etc.
It is good.

The control panels 16, 16 provided individually for the grain drying devices 3, 3 are respectively inserted into the drying section 6 and the cooling tank 5 and dried (ventilated in the cooling tank 5), moved, discharged and stopped. Switches 21, 22, 23, 24, 25, and 2
6, 27, 28, 29 and 30 are provided. Control panel 1
Each of the operation switches 6 is capable of setting drying conditions such as a grain type, a set water content, and a filling amount, in addition to the above switches.
1, 32, and 33. Reference numeral 34 denotes a single / double setting switch. In the single setting, the standard work is carried out by returning the grain stuck to the drying unit 1 to the original state while circulating and flowing with a transport mechanism such as the elevator 7 or the like. In this example, raw cereal is also applied to the cooling tank 5, and the cooling tank including the cooling tank 5 is configured as a refining room. The cooling tank 5 having the upper and lower layers and the drying section 6 function as an integrated circulation drying device. . A switching valve for selectively supplying the lifted grain to the cooling tank 6 side or the drying section 6 side can be opened and closed at the discharge section of the elevator 7, and the discharge section of the cooling tank 5 can be opened and closed to dry the grain downward. An opening / closing bottom valve is provided to enable the unit 6 to be supplied and dropped or to be fed out of the machine.

The central control panel 12 and the individual control panels 16, 16
Are connected to the central control panel 12 to sequentially transmit and receive signals to and from the plurality of control panels 16, 16,. 1 to NO. 4 in order. That is, as shown in FIG. 4, the transmission line from the central control panel 12 connects the control panels of the individual drying devices in series,
The receiving line to the central control panel has a configuration in which individual control panels 16 are connected in parallel to one line.
Is provided with a switch for setting the number (No. 1 to 4), a management number corresponding to the number is set in advance, and the central control panel 12 performs transmission and reception based on the management number. Specifically, from the central control panel 12 to the control panel 1 of the drying device
When the operation information is output to 6, 16.
The data of the operation information to which the control panel of the drying device (No. 1 to 4) is added is output from the TXD of the central control panel 12. Then, the control panel 16 of the drying apparatus starts its own machine (N
O. ) Is input from the RXD, and the data other than the own machine (NO.) Is transferred to the next drying device 16. On the other hand, when the central control panel 12 inputs the drying information from the control panel 16 of the drying apparatus, the control panel of the drying apparatus for which the drying apparatus information is to be obtained is specified as described above. Dryer information is output from TXD. The central control panel 12 inputs the transmitted data from the RXD as dryer information from the designated dryer control panel.

The central control panel 12 and the control panel 1 for each drying device
The contents of the data communication with 6, 16,... Are generally as follows. That is, from the central control panel 12 to the control panel 16, a request for transmission of the operating state of the drying device, a start command or work stop command for stretching, drying, discharging, moving, or the like, a normal or abnormal reception response to data from the drying device, or the like. On the contrary, a response to the above request, a normal reception response to the above work command, each request from the central control panel, an abnormal reception response to the command, etc., from the control panels 16, 16... It is.

In addition, when an operation command is output from the central control panel 12, the transmission and reception of signals are simply performed as described above.
O. 1 to NO. 4, the communication of the work start data is performed preferentially at the start of the work, and the responsiveness is improved by operating the operation switch on the central control panel 12. Further, as described above, the control panels 16, 16... Of the plurality of drying devices are sequentially communicated with the central control panel 12, and even if a certain time has passed, the central control panel
If no data is returned to the device, or if normal data is not returned even after performing the retry process several times, a communication error with the drying device is made, the subordinate of the central control panel is removed, and communication with the drying device is performed thereafter. Is not performed. This can eliminate waste of communication error processing time. When the communication line is repaired for the drying device in which a communication error has occurred, a number is assigned to the system connection unit (a plurality of drying devices 3, 3...) In the central control panel 12 as described above. The communication process may be restored by returning the setting switch from OFF to ON.

The power box 18 is constructed on the basis of a programmable controller, and receives a motor control signal from the control unit 13 in the central control panel 12 to receive a motor for a transport system,
For example, it is configured to be able to drive or stop the motors of the elevating elevator 2, the intruding conveyor 4, the discharging conveyor 8, the discharging elevator 10, and the like. In addition, the control section 13 receives an input from a sensor system such as the presence or absence of a grain in the transport system and the overcurrent detection, and sends it to the control section 13. The signals processed by the power box 18 are different from the signals controlled by the control panel 16 of the drying device 3 and relate to common components.

As for the CRT 15 screen, FIG. 1 shows an operation state and an operation selection screen. In the drying device section graphically displayed, each operation state is displayed, and among the “dryer” and “customer” on the right side, When "Dryer" is selected and an optional dryer (for example, No. 1) is selected, the screen shifts to a designated operation basic pattern screen determined for each of the drying section 6 to the cooling section 5 of the designated drying apparatus ( FIG. 6 (a)).
In addition, every time each operation is selected, the screen shifts to the confirmation screen.
(C)), the operation can be shifted to actual operation after confirmation by the operator. This confirmation screen is shown in the case of drying operation.
The operation content used in the previous drying is continued, and a display prompting the user to change the setting on the operation panel of the control panel 16 of the drying device is provided.

The operation of the above example will be described. Grains harvested in the field, for example, paddy, are transported by a truck or the like and thrown into the hopper 1. When an empty dryer is selected from the color CRT 15 screen of the central control panel 12, the operation state and the operation selection screen display (referred to as a NO. 1 dryer), and the "dryer" is picked further, the screen is switched to a basic pattern screen (FIG. 6
(I)). When the picking operation of “dry” is performed (the same (b)), the screen is switched to a confirmation screen (FIG. 5), and it is asked whether the setting of the drying condition has been changed. When the setting is changed, the setting is changed by using the switches 31 to 33 of the control panel 16 of the drying device 3. When the setting is changed, the contents are sent to the central control panel 12 together with the number of the drying device.

When the central control panel 12 receives this change data, it rewrites it and at the same time returns the screen to the original operation state and operation selection screen. The operator again sets and selects the drying operation in the same procedure. When "Yes" is selected on the confirmation screen, actual operation starts. The grain which has been dried in the drying section and has reached a predetermined moisture value is transferred to the upper cooling tank 5 where the grain temperature is cooled. When it is necessary to immediately discharge the grain from the machine, "discharge" on the basic pattern screen may be selected.

C so that the operator can work in order
The RT15 screen display is switched, which contributes to the reduction of operation errors. However, when the setting in the drying operation is changed as described above, the display screen is returned to the original state and the drying operation is performed in the same procedure. , Less erroneous operation. As described above, the color CRT 15 screen is provided with the character display portion h of the content of the abnormality, but in the case of the operation operation portion display where the operation is not permitted, the driving prohibition reason is displayed so as not to be mistaken for a failure. For example, when grain filling is specified for a certain cooling tank 5, a message “旨 There is grain already in the tank. Are you sure you want to put it in?” Is displayed, and “Yes” or “ No ”. In addition, as for the discharge operation, a confirmation screen prompting "The paddy tank already has grains. Are you sure you want to discharge?"

[Brief description of the drawings]

FIG. 1 is a CRT screen display unit.

FIG. 2 is a system outline front view.

FIG. 3 is a front view of a control panel of an individual drying device.

FIG. 4 is a control block diagram.

FIG. 5 is a diagram showing a display example of a CRT screen.

FIG. 6 is a diagram showing a display example of a CRT screen.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Receiving hopper 2 Loading elevator 3,3 ... Grain drying device 4 Loading conveyor 5 Cooling tank 6 Drying unit 7 Lifting device 8 Discharge conveyor 10 Discharge lifting device 12 Central control panel 13 Control unit 16,16 ... Drying device control panel

Claims (1)

(57) [Claims] 1. A plurality of grain drying devices 3, 3,...
In the grain drying apparatus which performs the drying process while transmitting and receiving control signals between these individual control panels 16, 16 and the control unit 13 of the central control panel 12, selection and operation contents of the grain drying apparatuses 3, 3,. Can be arbitrarily selected and set from the operation state and operation selection screen of the central control panel 12, and the type of grain, filling amount, finish set moisture and the like necessary for the drying operation are set by the individual control panel 16, and the central control Individual from board 12
The transmission lines to the control panels 16, 16 ... are connected in series and
Receiving line from control panels 16, 16 ... to central control panel 12
Is connected in parallel to individual control panels 16, 16 ... in one line
An operation control method in a grain drying device configured to be performed .