JP6372654B2 - Grain dryer - Google Patents

Description

  The present invention relates to a grain dryer including a control unit that controls the operation of a grain drying process.

  Patent Document 1 discloses a technique for remotely controlling a grain dryer from a portable terminal by connecting the user's portable terminal and the grain dryer through a management server.

JP 2002-267363 A

  However, there has been a problem that the operation status of the grain dryer and the operation history after the operation cannot be displayed on the portable terminal.

  An object of the present invention is to provide a remote management system for a grain dryer that appropriately displays various operation information of the grain dryer even from a remote location and enables good management of the grain dryer.

The invention according to claim 1 is a remote communication between the control unit (2a) for controlling the operation of a series of processes from the insertion of the grain dryer (2) to the ventilation, drying, and discharging, and the control unit (2a). In a remote control system for a grain dryer comprising a portable terminal (3) that receives operation information related to the operation control by connection, the operation information includes grain processing information associated with the operation control, history information of the operation control, and In addition to the abnormality information, it is configured so that it can be selected from the driving information and displayed on the portable terminal (3) according to the operation of the portable terminal (3), and history information is selected from the driving information. Display the operation time and operation time for each process, and the operation time accumulation graph for each process to illustrate the accumulation of the operation time for each process. The terminal dryer (3) can be switched and displayed. Further, the portable terminal (3) is individually connected to a plurality of the grain dryers (2) by remote communication, whereby the grain dryer is provided. For each (2), obtain the measured value of the amount sensor of the grain dryer (2) and the moisture value of the grain to calculate the approximate cutting weight, and obtain the measured value of the amount sensor when the grain is discharged. A yield calculating means for calculating the yield of the finished dry rice cake and calculating the yield of the grains in each of the grain dryers (2) from the calculated approximate cutting weight and the numerical value of the finished dry rice cake weight. wherein the remote management system grain dryer, characterized by being configured to.

The invention according to claim 2, in the invention according to claim 1, said grain processing information, see contains the distribution of grain moisture with the elapse of the operation control, the mobile terminal device (3), said grains It is characterized by displaying advice on the drying speed and rest drying of the grain dryer (2) based on the moisture distribution state .

According to a third aspect of the present invention, in the first or second aspect of the present invention, it is provided with a driving condition notifying means for transmitting an e-mail to a user's information terminal when an abnormality occurs in the grain dryer (2). characterized by being configured to.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the portable terminal (3) parallels operation control history information in each of the grain dryers (2). The display is configured to be displayable .

According to the first aspect of the present invention, the driving information includes grain processing information associated with the driving control, history information and abnormality information of the driving control, and the driving information according to the operation of the portable terminal (3). Since it is configured so that it can be displayed on the portable terminal (3) by selecting from the information, necessary information can be known at any time by the terminal operation of the portable terminal (3), and parallel work and subsequent work This makes it possible to manage the operation and maintenance of the grain dryer for a long time. In addition, it is possible to display the work time graph for each process that graphically shows the work time and work time for each process on the portable terminal (3), making it easier to understand the work contents of the day and replacing the daily work report. It can be said that. In addition, since it is possible to display the accumulated work time by process graph that graphically represents the accumulated work time by process on the portable terminal (3), the accumulated time can be grasped by work process. Can be found.

According to the invention according to claim 2, in addition to the effect of the invention according to claim 1, the grain processing information includes the distribution state of grain moisture according to the progress of the operation control. Therefore, the portable terminal (3) The degree of convergence of moisture unevenness can be grasped by operating the terminal. In addition, since the portable terminal (3) is configured to display advice regarding the drying speed and pause drying of the grain dryer (2) based on the distribution state of grain moisture, It becomes possible to support severe drying.

According to the invention according to claim 3, in addition to the effect of the invention according to claim 1 or 2, in addition to the effect of the invention according to claim 1 or 2, when the abnormality of the grain dryer (2) occurs, an operation status notification means for sending an e-mail to the user's information terminal Therefore, it is possible to assist the user in dealing with abnormal processing .

According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3,
Since the portable terminal (3) is configured to be able to display the history information of operation control in each grain dryer (2) in parallel, a plurality of dryers by terminal operation of the portable terminal (3) can be displayed. The parallel display of the operation histories of these makes it possible to compare the operational status of the dryers.

System configuration diagram of grain dryer remote management system Example of work by applying the system Communication connection example (a) and abnormal terminal display screen example (b) Example of process management display (a) (b) Fuel consumption management display examples (a) (b) Example of moisture display Example of yield analysis display Configuration diagram of the top screen of the dryer support system Screen configuration of check mode setting Work structure list screen configuration diagram Screen configuration diagram of the results of narrowing down the work results list Operation data management screen Operation detail data screen configuration diagram Operation data graph display screen configuration diagram Screen structure of work time display (1) Screen structure of work time display (2) Screen structure of moisture change Screen configuration diagram with moisture variation Fuel consumption graph screen configuration diagram Fuel consumption summary graph screen configuration diagram Drying operation summary screen configuration diagram Screen structure of yield and yield display Abnormal display screen configuration diagram Abnormal display details screen configuration diagram Maintenance screen Maintenance history list screen layout Notification email screen layout

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
As shown in FIG. 1, the remote control system 1 for a grain dryer includes a plurality of (5 in the illustrated example) grain dryers 2... And a tablet terminal capable of remote communication connection in common to all of them. 3.

Each grain dryer 2... Is provided with a control unit 2a that controls the operation of each process from grain filling, ventilation, drying to discharging, and is configured to be able to output the operation control information.
The tablet terminal 3 includes an input / output touch panel display 3a and is configured by a portable information terminal with a communication function including voice.

  For communication between the grain dryer 2 and the tablet terminal 3, for example, Bluetooth, which is one of the short-range wireless communication standards for digital devices, is applied, and a plurality of grain dryers are used for one tablet terminal 3. 2...

  In addition, in order to monitor a plurality of grain dryers 2... In the management target range with a single tablet terminal 3, a plurality of grains in the management target range are switched by switching each communication connection every predetermined time (for example, 5 minutes). The operation information of the dryers 2 is received.

  The operation information of each grain dryer 2 includes grain processing information indicating the state of the grain processed by the operation control and operation control indicating the progress of the operation for a series of processes from the insertion of the grain to the ventilation, drying, and discharging. History information and abnormality information detected during operation. These various types of driving information can be selected and displayed on the portable terminal 3 in accordance with the operation of the portable terminal 3, so that necessary information can be known at any time, and in parallel work and subsequent work It is possible to manage and maintain each grain dryer 2 over a long time while making adjustments.

  In addition, in the range of normal operation, the grain dryer 2 transmits each operation status to the portable terminal 3 as text periodically (optionally settable, default 30 minutes). The transmission data includes at least two items in the operation status indicating that the temperature outside the dryer, the hot air temperature, the hot air set temperature, the exhaust air temperature, the grain moisture value, the finished moisture value, and the expected remaining time.

  As shown in FIG. 2, the transmission data allows the user who is working in parallel at the remote position 4 to confirm the normal operation of each unmanned grain dryer 2 and to feel at ease. Can work.

  When an abnormality occurs in the grain dryer 2, the abnormal grain dryer 2-n and the portable terminal 3 are connected by communication, error information is transmitted, and related solutions are stored in the portable terminal 3 as electronic data. 3 (a) shows the error location shown in the communication connection terminal screen example, narrows down the solution by MtoM, and the instruction manual and workshop error processing related items shown in the terminal screen example in FIG. 3 (b) Incorporating an error processing support system having means for displaying information, downloading information on error information (dealer mode), and the like, it is possible to support abnormal processing (described later) for users and dealers.

  As for the grain drying operation, as shown in the process management display example (a) of FIG. 4, the operation time of the dryer is managed for each work according to the process classification, and as shown in the process management display example (b), 1 Displaying the working time for each drying date and time, calculating the approximate amount of power from the operating time, and managing the amount of power or electricity along with the time by work, so that the work content can be displayed and stored in a daily report format, It can be the basis for supporting farm management.

  Regarding the fuel consumption of the grain dryer 2, the grain dryer 2 is provided with a fuel flow meter and the flow rate data is transmitted to the portable terminal 3. The fuel consumption per hour and the fuel usage data per drying are stored and displayed. Do. For example, usage expenses can be displayed and stored in a daily report format, such as the fuel consumption progress (a) and the daily consumption (b) displayed 24 hours in FIG.

  As for the drying situation of the grains, the moisture variation data in FIG. 6 is taken into the portable terminal 3, and the time series display of the variation (details will be described later), as shown in the example of 1 hour interval progress, will be supported during drying. I do. The deviation is numerically displayed from the deviation value of the deviation data, and advice such as drying speed and rest drying is given while managing the numerical values. In this way, it is possible to visually grasp the transition of variation, and it becomes possible to support severe drying such as glutinous rice and sake rice.

  For the dried grain, the approximate weight of cutting is grasped from the measured value of the tension sensor of the grain dryer 2 and the moisture data and converted into data, and the finished dry weight is measured from the tension sensor measured at the time of discharge. Understand and convert to data. Further, by grasping the amount of finished brown rice after scraping and the amount of crushed rice and inputting them to the portable terminal device 3, as shown in the example of yield analysis display in FIG. Profitability can be judged. In the same manner as described above, it is possible to support by displaying and storing the layer unevenness of the circulating grain moisture in the grain dryer 2.

  The drying data of the grain dryer 2 is stored in the external cloud after being taken into the portable terminal 3. This data includes the following contents according to the clock of the grain dryer 2, that is, the amount of tension (can be set value), grain type, drying speed setting, moisture setting, each correction value, hot air temperature, exhaust air Take in wind temperature, outside air temperature and fuel flow.

  By handling the drying data as described above, in the event of a fire trouble of the grain dryer 2, not only can the data loss that makes it difficult to grasp the cause of the trouble be used for data analysis, but the drying data can also be used. The combined drying data under various conditions can shorten the technical development of the next grain dryer.

(Dryer support system)
Next, the overall configuration of the dryer support system including the above-described grain dryer remote management system 1 will be described for each display screen of the portable terminal 3.
As shown in FIG. 8, the dryer support system has eight selection keys, that is, “master registration”, “display assistance”, “work management”, “data management”, “production management”, as shown in FIG. “Functional”, “Maintenance”, “System setting” keys (key classifications “1” to “8”).

  “Master registration” (key classification “1”) enables input of basic information, and “display assistance” (key classification “2”) enables operation of the dryer controller by displaying the enlarged display of the dryer controller. "Work management" (key category "3") displays the operating status of the dryer at the time of event occurrence so that the work status can be seen at a glance, and "Data management" (key category "4") is the dryer The data grasped by the controller is displayed, "Production management" (key category "5") manages the weight yield that was worked on, "Abnormality response" (key category "6") is the abnormality information and advice for resolution "Maintenance" (key classification "7") displays the replacement time by a list of consumables / repairs (automated by adding a time element to the manual / WS), and "system setting" (key classification " 8 ”) is the system To display the set value.

(Display assistance)
The function items will be specifically described as follows.
First, the screen configuration diagram (screen category “2-A”) for selecting the check mode by selecting “display assistance” (key category “2”) on the top screen (screen category “0”) is shown in FIG. As described above, the same contents are displayed on the portable terminal device 3 in synchronization with the liquid crystal monitor mounted on the dryer controller, and a proxy operation for setting input is enabled by a touch function on the tablet.

(Work management)
Further, by selecting “Work Management” (key classification “3”) on the top screen (screen classification “0”), the screen configuration diagram of the work performance list display (screen classification “3-A”) is shown in FIG. As shown, the work data at the time of event occurrence is recorded. Basically, user settings, automatic stop time and event contents are recorded. The event contents are displayed in chronological order of the event occurrence date, day of the week, and time by changing the error, etc. in addition to the grain setting, amount of filling, moisture setting, drying speed, drying mode, etc. Understand the problem and understand the habit of the dealer.

In addition to the above-mentioned figure examples that target “all” (key classification “(1)”) in the “narrow down” column of the above-mentioned work results list, the results of narrowing down the work results list As shown in FIG. 11, the screen configuration diagram of the display (screen classification “3-A- (1)”) can be displayed as an error history, and only the error list of the work performance list can be displayed. Can determine the frequent occurrence of problems.
In addition, when the application grain classification is narrowed down for “narrowing down” in the work performance list (screen classification “3-A”), the drying history of the grain specified in the grain setting can be displayed.

(Data management)
Further, by selecting “data management” (key classification “4”) on the top screen (screen classification “0051”), the operation data management screen (screen classification “4-A”) is displayed as shown in FIG. Nine management item selection keys, namely, “operation data list”, “operation data graph”, “work time graph”, “work time total”, “moisture change”, “moisture variation”, “fuel consumption”, “fuel consumption total”, “ It is configured so that it can be selected from the “dry operation total” key (key classification (1) to (9)).

  “Operation data list” (key classification (1)) is a list of data held by the dryer from start-up to discharge completion, and “Operation data graph” (key classification (2)) is from the operation data list. Trend graph of operating data to be processed, “Graph by work time” (key classification (3)) is a graph display of work time by process of dryer, and “Total work time” (key classification (4)) is time display by work A graph display of subtotal time per drying, “moisture change” (key category (5)) is a trend graph display from the operating data table, “moisture variation” (key category (6)) is a moisture measurement result, Variations are displayed in time series graphs, “Fuel consumption” (key category (7)) is a graph of data per unit time, “Fuel consumption summary” (key category (8)) is the fuel consumption per drying Aggregated graph display, “dry operation total” (key classification (9)) is dry work This is a total display for each industry.

The management items will be specifically described below.
First, by selecting the “operation data list” (key classification (1)) on the operation data management screen (screen classification “4-A”), the operation detailed data display screen configuration diagram (screen classification “4-A”). -(1) ") is basically shot data every 15 minutes as shown in Fig. 13, but the fuel consumption is the data per unit time ascertained by the dryer controller, and the upload key is used. Can be stored in an external cloud. Since this data will be the material for the next development, the problem can be solved smoothly by using it as the basic material when a problem occurs.

  In addition, by selecting the “operation data graph” (key classification (2)) on the operation data management screen (screen classification “4-A”), the screen configuration diagram of the operation data graph display (screen classification “4-A-”) is displayed. (2) ”) is a trend graph of operating data to be processed from the operating data list as shown in FIG. 14 and displays the display period selection contents.

  Click the legend table of display items such as “hot air temperature”, “exhaust air temperature”, “outside air temperature”, “cereal temperature”, and “fuel consumption” so that the display items can be selected from the operation details data. A setting screen is provided for selecting the display contents. The graph above can be used to grasp the dryer process status in a trend graph, so collecting data will be a reference material for the next development.

  In addition, by selecting “Graph by work time” (key classification (3)) on the operation data management screen (screen classification “4-A”), the screen configuration diagram of the time display by work (1) (screen classification “ As shown in FIG. 15, 4-A- (3) ”) displays the operation time for each process of the dryer in a graph. This graph display makes it easier to understand the work contents of the day and replaces the daily work report.

The items by work process are graphs that can express rest time from pause drying or intermittent drying mode with uniting work, ventilation / circulation work, drying work, discharge work as the unit, and at the top of the graph are the type and producer name Is displayed. In addition, since the drying machine has many operations that span from the current day to the next day, the discharge after leaving for 2 to 3 days can be expressed by a frame of cooling by making a graph of 1 drying over the day.

  In addition, by selecting “Work Time Total” (key category (4)) on the operation data management screen (screen category “4-A”), the screen configuration diagram of the work-specific time display (2) (screen category “4”). -A- (4) ") as shown in FIG. 16, it is possible to grasp the time for each drying process by displaying the time for each operation as a bar graph of the subtotal per drying. Simultaneously with the above graph, the cumulative time of the current year and the cumulative time since the purchase are displayed in a tabular format, so that the cumulative time can be ascertained for each work process, so that unnecessary work can be found.

  In addition, by selecting “Moisture change” (key category (5)) on the operation data management screen (screen category “4-A”), a screen configuration diagram of the moisture change display (screen category “4-A- (5 As shown in FIG. 17, the trend graph is processed from the operation data list, and the horizontal axis is time and the vertical axis is moisture, so that the moisture decrease state over time is viewed in the trend graph (dashed line). be able to. Furthermore, by drawing an expected line (straight line) of the hourly drying rate toward the set moisture value (horizontal line), the expected time to completion and the drying rate can be displayed in an easy-to-understand manner. The contents can be easily grasped.

  In addition, by selecting “moisture variation” (key category (6)) on the operation data management screen (screen category “4-A”), a screen configuration diagram of the moisture variation display (screen category “4-A- (6 ) ”) As shown in FIG. 18, the variation displayed on the dryer controller from the moisture measurement results is displayed on three screens at intervals of 30 to 60 minutes, so that the variation in moisture variation can be confirmed, and the variation is eliminated. Can be confirmed.

  In particular, the variation is important when drying cocoons and the like, and is a measure for changing the drying conditions. For example, by displaying a percentage of 14.5% or more as a percentage, it is possible to obtain an indication of the whitening rate such as glutinous rice. By visual display, it is possible to judge the situation instantaneously.

  In addition, by selecting “Fuel consumption” (key classification (7)) on the operation data management screen (screen classification “4-A”), a screen configuration diagram of the fuel consumption graph display (screen classification “4-A- ( As shown in FIG. 19, the data per unit time grasped by the dryer controller is graphed and the fuel consumption per hour is displayed as a trend graph.

  Also, by manually entering the capacity of the fuel tank (pressing the volume button and entering 10 keys), the input amount is set to 100%, and the remaining amount is graphically displayed as time passes. When the fuel becomes less than 20% of the initial value The remaining amount display is changed from blue to red, and for example, the paint color of the storage depth range is changed from blue to red for a basic capacity container so that an alarm display or an alarm buzzer or mail can be transmitted. The fuel tank can be handled in the same manner as described above by displaying the input amount in% based on the model.

  Further, by selecting “Fuel consumption aggregation” (key classification (8)) on the operation data management screen (screen classification “4-A”), a screen configuration diagram of the fuel consumption aggregation graph display (screen classification “4-A”). -(8) "), as shown in FIG. 20, the fuel consumption per drying is totaled, one drying is displayed as a bar graph for convenience, and the cumulative consumption for the current year is displayed as a line graph.

  In addition, by selecting “dry operation total” (key classification (9)) on the operation data management screen (screen classification “4-A”), a screen configuration diagram of the dry operation total display (screen classification “4-A-”). As shown in FIG. 21, (9) ”) is summed up for each drying operation and displayed in a table format in one line.

(Production control)
Further, by selecting “Production Management” (key category “5”) on the top screen (screen category “0”), a screen configuration diagram (screen category “5-A”) for yield and yield display is shown in FIG. As shown, the weight from the amount harvested by the combine to the end of the mashing, that is, the weights of cutting, drying, water / garbage, brown rice, crushed rice, rice husk, etc., is displayed in a unified manner.

  The mowing (dryer tension) weight is an approximate weight calculated from the tension amount setting value (or optional tension amount sensor) and initial moisture as raw weight. The dry (after) weight is a weight converted from the above set value (or an optional insertion amount sensor) to a finished moisture value. Water / garbage is the weight obtained by subtracting the weight after drying from the tension weight. Brown rice is the actual amount after scouring, crushed rice is the actual amount after scouring, and rice husk and other husks are obtained by subtracting brown rice and crushed rice from the weight after drying.

(Abnormality response)
Further, by selecting “abnormality response” (key classification “6”) on the top screen (screen classification “0”), a screen configuration diagram (screen classification “6-A”) of abnormality display is shown in FIG. As soon as an error occurs, an error display screen is displayed, displaying the error code, error name, and error location (●), and the instruction manual (key classification (1)), workshop as a mode for detailed information on the error Provide manual (key classification (2)) and error information (key classification (3)). The error information is information such as quality information or technical information corresponding to a problem after shipping.

  The user can only view the instruction manual. Further, the dealer mode is configured to allow workshop browsing and error information browsing. By making it a password by input, it can be configured so that browsing can be restricted.

Further, when the detail confirmation item of the abnormality display (1) is selected, the details of the abnormality handling are displayed as shown in the screen configuration diagram of the abnormality display details (screen classification “6-A- (2)”) in FIG. .
"User's manual" is a user authority, "Workshop" (screen category "6-A- (2)") is a password with a dealer authority, and "Error information" is a viewing restriction with a password with a technical distribution manager authority. Is provided.
When “NO” is selected in the column “Is it solved?”, The system is configured so that the next solution page can be sequentially shifted by a message “Move to next screen?”.

(maintenance)
Further, by selecting “Maintenance” (key category “7”) on the top screen (screen category “0”), the maintenance screen (screen category “7”) is displayed as shown in FIG. List and the operation time of each part. When the replacement time (default value) comes, the operation time is highlighted in red, and after replacing the target part, the current time is initialized by resetting, and integration is started again from this point.

Press “Reset” to display the password screen and confirm the operation authority by entering the password.
When you press “Consumable parts list” (item category (1)), the characters are highlighted and a consumable part is selected.
When you press “Replacement parts list” (item classification (2)), the characters are highlighted and the replacement parts are selected.
Press “Maintenance history” (item classification (3)) to move to the maintenance history list.

  By selecting “Maintenance history” (item category (3)) on the maintenance screen (screen category “7”), the screen configuration diagram of the maintenance history list (screen category “7- (3)”) is shown in FIG. As shown, it is added as a history to the maintenance history list in response to a reset input on the maintenance screen (screen category “7”). The blank can be written, and the information at the time of determination is determined as a record by input determination.

(Notification email)
In addition, as shown in FIG. 27, a screen configuration diagram of the notification mail (screen classification “9”) is provided with an operation status notifying means for normal periodic communication (a) and abnormal interruption communication (b).
Regular regular contact is periodically (can be changed once every hour in basic settings), and abnormal interrupt communication is to send an email to the address of the user's mobile terminal or tablet terminal in response to the occurrence of an abnormality.

  The mail displays the following contents as text. Regular periodic communication is based on set moisture, current moisture, remaining drying time, and normal information as basic items. In addition, optional items include outside air temperature, hot air temperature, exhaust air temperature, moisture variation, immature amount, and start of drying. Elapsed time and accumulated fuel consumption are configured to be additionally displayed by selection. Abnormal interrupt notification displays the error code, error name, occurrence time, and current moisture value at the time of occurrence.

(Summary)
The remote control system 1 for a grain dryer according to the above embodiment includes a control unit 2a for operation control of a series of processes from the insertion of the grain dryer 2, ventilation, drying, and discharging, and remote communication with the control unit 2a. The mobile terminal 3 receives operation information related to the operation control by connection, and the operation information includes grain processing information associated with the operation control, history information and abnormality information of the operation control, and the mobile terminal. By selecting the operation information according to the operation of the container 3 and displaying it on the portable terminal 3, necessary information such as grain processing status, operation history, abnormality-related information, etc. can be obtained at any time by the terminal operation. Since it is possible to know, it is possible to manage the operation and maintenance of the grain dryer 2 for a long time while adjusting the parallel work and the subsequent work.

In addition, the grain processing information includes the distribution state of grain moisture corresponding to the progress of the operation control, so that the degree of convergence of moisture unevenness of the grain to be dried can be grasped by a terminal operation.
In addition, by including the graphical representation of the cumulative time for each process in the operation control history information, it is possible to compare and evaluate the processing efficiency based on the cumulative time for each process displayed by the terminal operation.
In addition, the operation control history information includes the illustrations of the operation progress for each process, so that the individual operation status can be grasped based on the illustration of the operation progress displayed by the terminal operation, and the daily work report Can be used as
Further, the mobile terminal 3 is configured to be capable of displaying the history information of each operation control in parallel after being individually connected by remote communication with the plurality of grain dryers 2. It becomes possible to compare the operation status of dryers.

1 Remote management system 2 Grain dryer 2a Control unit (dryer controller)
3 mobile terminals

Claims (4)

Control information (2a) for controlling the operation of a series of processes from stretching of the grain dryer (2) to ventilation, drying, and discharging, and operation information related to the above operation control by remote communication connection with the control unit (2a) In the grain dryer remote management system consisting of the mobile terminal (3) receiving
The operation information includes grain processing information associated with the operation control, history information and abnormality information of the operation control, and is selected from the operation information according to the operation of the portable terminal (3) and the portable It is configured so that it can be displayed on the terminal (3) ,
When selecting history information from the operation information and displaying it, the work time graph for each process that graphically represents the work time and work time for each process, and the work for each process that graphically represents the cumulative work time for each process The time accumulation graph is configured to be switchable and displayable on the mobile terminal (3), and further,
The portable terminal (3) is individually connected to a plurality of the grain dryers (2) by remote communication, so that each of the grain dryers (2) has an extension amount sensor of the grain dryer (2). Obtain the measured value and grain moisture value to calculate the approximate cutting weight, obtain the measured value of the tension sensor when the grain is discharged, calculate the finished dry weight, and calculate the estimated cutting weight and the finished weight A remote control system for a grain dryer , comprising: a yield calculating means that can calculate the yield of grains in each of the grain dryers (2) from the numerical value of the dry weight . The grain processing information, see contains the distribution of grain moisture with the elapse of the operation control, the mobile terminal device (3), the drying of the grain dryer (2) based on the distribution state of the grain moisture The remote management system for a grain dryer according to claim 1, wherein advice regarding speed and pause drying is displayed. The grain drying according to claim 1 or 2, characterized in that the grain drying machine (2) is provided with an operation status notifying means for sending an e-mail to a user's information terminal when an abnormality occurs. Remote management system of the machine. The said portable terminal (3) was comprised so that the historical information of the operation control in each said grain dryer (2) could be displayed in parallel, The any one of Claims 1-3 characterized by the above-mentioned. The grain dryer remote management system described in 1 .