JPH02213691A - Dry controller for cereal drying machine - Google Patents
Dry controller for cereal drying machineInfo
- Publication number
- JPH02213691A JPH02213691A JP3158789A JP3158789A JPH02213691A JP H02213691 A JPH02213691 A JP H02213691A JP 3158789 A JP3158789 A JP 3158789A JP 3158789 A JP3158789 A JP 3158789A JP H02213691 A JPH02213691 A JP H02213691A
- Authority
- JP
- Japan
- Prior art keywords
- value
- drying
- moisture
- average value
- moisture value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 91
- 235000013339 cereals Nutrition 0.000 title abstract description 97
- 238000012937 correction Methods 0.000 claims description 23
- 238000010981 drying operation Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract 1
- 235000021329 brown rice Nutrition 0.000 description 22
- 241000209094 Oryza Species 0.000 description 17
- 235000007164 Oryza sativa Nutrition 0.000 description 17
- 235000009566 rice Nutrition 0.000 description 17
- 238000011109 contamination Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005336 cracking Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000010903 husk Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この出願の発明は穀物乾燥機における乾燥制御装置に間
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The invention of this application relates to a drying control device in a grain dryer.
［従来の技術］
従来、穀物乾燥機において被乾燥穀粒の水分を自動的に
測定し乾燥を制御したものとしては、ア、特開昭６３−
１８２５５７号公雇に記載された発明がある。これによ
れば、？Ｊ￥数回の測定値から単純平均値を求めるとと
もに、予め定めた所定値と各測定１筐とを比較して１氏
い測定値のみを採用して有効粒平均水分値を求め、この
有効粒平均水分値と単純平均値との水分値差に基づいて
、未熟米の混入率を捉え、その未熟米の影響で生ずる乾
燥停止後の有効粒の水分戻りを水分値差に応じて補正を
行っている。[Prior Art] Conventionally, as a grain dryer that automatically measures the moisture content of grains to be dried and controls drying, there are a.
There is an invention described in Public Employment No. 182557. According to this? J￥ Calculate a simple average value from several measurements, compare each measurement with a predetermined value, and use only the one measurement value to determine the effective grain average moisture value. Based on the moisture value difference between the grain average moisture value and the simple average value, the contamination rate of immature rice is determined, and the moisture return of the effective grains after drying stops due to the influence of immature rice is corrected according to the moisture value difference. Is going.
イ、さらに特開昭６３−２２３４８５号公報によれば、
被乾燥籾米の乾燥停止後の貯留時間における水分変動特
性を、粗水分値と玄米水分値との差を変数とする間数と
し、貯留時間に対応した変動値を導き出して、停止水分
値を補正するようにしている。B. Furthermore, according to Japanese Patent Application Laid-Open No. 63-223485,
The moisture fluctuation characteristics during the storage time after stopping drying of the paddy rice to be dried are determined by using the difference between the crude moisture value and brown rice moisture value as a variable, and the fluctuation value corresponding to the storage time is derived to correct the stop moisture value. I try to do that.
［発明が解決しようとする問題点コ しかし、従来の技術には、次のような問題点があった。[The problem that the invention aims to solve] However, the conventional technology has the following problems.
■アの場合において、被乾燥籾米の測定水分値が大きく
バラツキを生じたときは、単純平均値に基づいて所定値
を設定（これは単純平均値にある値を加えること）する
ことにより、未熟米の水分値をも整粒籾の水分値とみな
して処理することが生じ、不都合てあ、る。かつ又、乾
燥停止後の貯留時間の経過に対応した変化について明ら
かにされていないため、籾摺作業を籾の水分が安定する
まで待たなければならず、作業日程が延びる不都合があ
る。さらに従来行われてきた乾燥途中ての調湿のための
乾燥休止運転、又は乾燥速度低減のための操作に間して
述べるところがないので、適切な乾燥休止時間の設定、
もしくは乾燥速度低減戚の操作が困難であった。■In case A, if there is a large variation in the measured moisture value of the unhulled rice to be dried, set a predetermined value based on the simple average value (this means adding a certain value to the simple average value). This is inconvenient because the moisture value of rice is treated as the moisture value of grained paddy. Moreover, since the changes corresponding to the elapse of the storage time after drying is stopped are not clarified, the hulling operation has to wait until the moisture content of the rice stabilizes, which inconveniences the work schedule to be extended. Furthermore, since there is nothing to say about the conventional drying pause operation for humidity adjustment during drying or the operation to reduce the drying speed, it is necessary to set an appropriate drying pause time.
Otherwise, it was difficult to operate the drying rate reduction relative.
■つの場合は適用すべき関数値を得るのに籾水分と玄米
水分とを併せて測定する必要があり、実用上工程が複雑
となる不都合があった。In one case, it is necessary to measure both the paddy moisture content and the brown rice moisture content in order to obtain the applicable function value, which has the disadvantage of complicating the process in practice.
［発明の目的コ
この出願の発明は、上記問題点に鑑み、穀物乾燥機にお
ける幸≧燥制御装置において、それぞれ次のことを実現
することを目的とする。すなわち、第１発明は、被乾燥
穀粒の中で最終的に利用に適さない未熟粒を除く整粒籾
の平均水分値と、全部の測定値による単純平均値とを正
確に把握し、これに基づいて停止水分値もしくは単純平
均値を適切に補正して乾燥運転を行い、もって停止精度
の向上を図る。[Object of the Invention] In view of the above-mentioned problems, the invention of this application aims to achieve the following in a drying control device for a grain dryer. That is, the first invention accurately grasps the average moisture value of grained paddy excluding immature grains that are ultimately unsuitable for use among grains to be dried, and the simple average value of all measured values, and Based on this, the stopping moisture value or simple average value is appropriately corrected and drying operation is performed, thereby improving the stopping accuracy.
第２発明は、被乾燥穀粒の水分値のバラツキの大きざに
応じて自動的に乾燥休止時間を算出し・、これにより乾
燥（４；止運転を行い、胴割れ発生の防止を図る。The second invention automatically calculates the drying pause time according to the size of the variation in the moisture value of the grains to be dried, and thereby performs drying (4) stop operation to prevent the occurrence of shell cracking.
第３発明は、被乾燥穀粒の水分値のバラツキの大きさに
応じて自動的に乾燥速度低減量を算出し、これにより乾
燥速度を低）成して運転を行い、胴割れ発生の防止を図
る。The third invention automatically calculates the amount of reduction in drying speed according to the degree of variation in the moisture value of the grains to be dried, and thereby performs operation at a lower drying speed to prevent shell cracking. We aim to
第４発明は、乾燥後籾摺り作業開始までの貯留時間及び
未熟粒の混入率に基づいて停止水分値もしくは単純平均
値を適切に補正して乾燥運転を行い、もって停止精度の
向上を図る。The fourth aspect of the invention is to perform a drying operation by appropriately correcting the stop moisture value or simple average value based on the storage time after drying and the start of hulling work and the mixing rate of immature grains, thereby improving the stop accuracy.
［課題を解決するための手段］
上記目的を達成するため、この出願の発明はそれぞれ次
の構成を設けたことを特徴とする。[Means for Solving the Problems] In order to achieve the above objects, the inventions of this application are characterized by having the following configurations.
第１発明は、被乾燥穀粒を一粒ずつ所定回数測定を行っ
て、その水分値を検出する水分検出手段により穀粒の水
分測定を行い、その全測定値から水分値ヒストグラムを
作成するとともに、全測定値の単純平均値、及びその整
粒平均値とを算出し、かつ両平均値の水分値差を算出し
て、これにより未熟粒補正を行うととも−に、バラツキ
の大きさを判断して信号を発する構成としたこと。The first invention measures each grain to be dried a predetermined number of times, measures the moisture content of the grains using a moisture detection means that detects the moisture value, and creates a moisture value histogram from all of the measured values. , calculate the simple average value of all the measured values and the grain size average value, and calculate the moisture value difference between both average values, and use this to correct immature grains and to reduce the size of the variation. It is configured to make a judgment and issue a signal.
第２発明は、第１発明に加え、前記バラツキの大きさに
応じて休止時間を定め、かつその信号で作動する乾燥休
止手段を設けたこと。A second invention is, in addition to the first invention, that a drying pause means is provided which determines a pause time depending on the magnitude of the variation and is activated by a signal thereof.
第３発明は、第１発明に加え、前記バラツキの大きざに
応じて乾燥速度低減量を定め、かつその１言号で作動す
る乾燥速度低減手段を設けたこと。A third invention, in addition to the first invention, is provided with a drying speed reduction means that determines the drying speed reduction amount according to the size of the variation and operates with one word.
第４発明は、乾燥停止後籾摺作業開始までの貯留時間を
設定した場合に、設定された貯留時間と前記バラツキの
大きさとに対応した補正値でもって停止水分値もしくは
単純水分値の補正を行う貯留時間補正手段を設けたこと
。The fourth invention is to correct the stop moisture value or the simple moisture value with a correction value corresponding to the set storage time and the size of the variation, when a storage time is set after the drying is stopped and the rice hulling operation is started. A storage time correction means is provided.
［作用コ
この発明は、上述したような特徴的な構成を具備するこ
とによって、次の作用を果たす。すなわち、
第１発明は、被乾燥穀粒の水分値測定において、従来同
様の単純平均値と、未熟粒及び過乾燥粒を除いた整粒平
均値とを正確に算出し、その水分値差に基づいて測定水
分値の補正を行い、乾燥機の停止制御を精度よく行うこ
とができる。。[Function] This invention achieves the following effects by having the above-mentioned characteristic configuration. That is, the first invention accurately calculates a simple average value similar to the conventional method and a grain size average value excluding immature grains and over-dried grains in measuring the moisture value of dried grains, and calculates the difference in moisture value. Based on this, the measured moisture value can be corrected and the dryer can be stopped with high accuracy. .
第２発明は、前記水分値差の大きさに基づいて、自動的
に乾燥休止時間を算出して、乾燥休止運転をすることが
できる。In the second aspect of the invention, the drying pause time can be automatically calculated based on the magnitude of the moisture value difference, and the drying pause operation can be performed.
第３発明は、前記水分値差の大きさに基づいて、自動的
に乾燥速度の低減量を算出して、乾燥速度低減を行うこ
とができる。In the third aspect of the present invention, the drying rate can be reduced by automatically calculating the amount of reduction in the drying rate based on the magnitude of the moisture value difference.
第４発明は、乾燥停止から籾摺作業開始までの時間の長
短、及び前記水分値差の大きさに基づいて、停止水分値
あるいは測定水分値の補正を行って乾燥運転及び停止副
側を行うことができる。The fourth invention is to correct the stop moisture value or the measured moisture value based on the length of time from the drying stop to the start of the hulling operation and the magnitude of the moisture value difference, and perform the drying operation and the stop sub-side. be able to.
［実施例コ
以下に本出願の各発明を図示した実施例に基づいて詳細
に説明する。[Embodiments] Each invention of the present application will be described in detail below based on illustrated embodiments.
第１〜２図は、本出願の各発明を実施した穀物乾燥機を
示す。図中、符号１て示す穀物乾燥機は下から集穀室２
、乾燥室３、貯留室４を順に積み重ねて連通した本体と
、その側方に立設した昇降閃５とからなる。さらに詳し
くは前記集穀室２には横送コンベヤ２ａを、乾燥室３の
前部にはバーナ等からなる加熱器３ａ、ス、段部には排
風機３ｂそして下部には回転バルブ３Ｃ１３Ｃ５・・を
、貯留室４には上部コンベヤ４ａをそれぞれ配設する。1 and 2 show a grain dryer implementing each invention of the present application. In the figure, the grain dryer indicated by the symbol 1 has a grain collection chamber 2 from the bottom.
, a drying chamber 3 and a storage chamber 4 are stacked in order and communicated with each other, and an elevating flash 5 is installed on the side thereof. More specifically, the grain collecting room 2 is equipped with a cross conveyor 2a, the front part of the drying room 3 is equipped with a heater 3a consisting of a burner, etc., the step part is equipped with an exhaust fan 3b, and the lower part is a rotary valve 3C13C5... An upper conveyor 4a is disposed in each of the storage chambers 4 and 4.
又、前記昇降機５には下部にホッパ６、側面に水分計７
を装着するとともに、その上下端で前記上部コンベヤ４
ａ及び横送コンベヤ２ａと連通させる。なお、符号８は
排塵機、９はスロワである。The elevator 5 also has a hopper 6 at the bottom and a moisture meter 7 at the side.
are attached to the upper conveyor 4 at its upper and lower ends.
a and the cross conveyor 2a. In addition, the code|symbol 8 is a dust remover, and 9 is a thrower.
第３図は、本出願の各発明を実施した穀物乾燥機の制御
系のブロック図であり、第４図（Ａ）、（Ｂ）はその機
能説明図である。FIG. 3 is a block diagram of a control system of a grain dryer implementing each invention of the present application, and FIGS. 4(A) and (B) are functional explanatory diagrams thereof.
符号１０は、例えばマイクロプロセッサからなるＣＰＵ
（中央処理装置）であって、後述する演算及び制御を
行う。１１は前記ＣＰＵｌ０に接続したＡ ／ Ｄ変換
部で、水分計７、外気温度センサｌｌａ、外気温度セン
サＩｌｂ、熱風温度センサ１１ ｃ 、 穀温センサｌ
ｉｄなどからの信号をＡ／Ｄ変換して、前記ＣＰＵｌ０
に入力する。１２は同じく入力回路で、例えば被乾燥穀
粒の目（７値たる停止水分値を設定する停止水分設定ス
イッチ１３ａ、前記単純平均値と整粒平均値とを択一的
に表示させるための表示選択スイッチ１３ｂ、乾燥終了
後から後作業の籾摺作業開始までの貯留時間を設定する
貯留時間設定スイッチ１３ｃ、乾燥休止を指示し所定時
間経過後に再乾燥運転を行うためのプログラムを設定す
る乾燥休止、設定スイッチ１３ｄ等を含む諸入力を行う
入力設定器１３を接続する。１４は同じく安全回路で、
機内に穀粒を投入する際、満杯になったことを検知して
警報を発する満量スイッチ１４ａ、昇降機５を含む搬送
系に詰まりを生じた場合、直ちに運転を停止せしめる詰
まりスイッチ１４ｂ、前記加熱器３ａにおける過熱状態
を検出してバーナ等の駆動を停止させるサーモスタット
１４ｃ等の安全スイッチ類を接続し、その信号をＣＰ
Ｕ １０に入力する。Reference numeral 10 is a CPU consisting of, for example, a microprocessor.
(Central processing unit), which performs calculations and control described later. Reference numeral 11 denotes an A/D conversion unit connected to the CPU10, which includes a moisture meter 7, an outside temperature sensor lla, an outside air temperature sensor Ilb, a hot air temperature sensor 11c, and a grain temperature sensor I.
The signal from the id etc. is A/D converted and the CPU10
Enter. Reference numeral 12 designates an input circuit, for example, a stop moisture setting switch 13a for setting the stop moisture value of the grain to be dried (7 values), and a display for alternatively displaying the simple average value and the grain size average value. Selection switch 13b, storage time setting switch 13c that sets the storage time from the end of drying to the start of the post-hulling operation, drying pause that instructs drying pause and sets a program to perform re-drying operation after a predetermined period of time has elapsed. , an input setting device 13 that performs various inputs including a setting switch 13d, etc. 14 is a safety circuit,
When loading grain into the machine, a full quantity switch 14a detects that the machine is full and issues an alarm; a blockage switch 14b that immediately stops operation if a blockage occurs in the conveyance system including the elevator 5; A safety switch such as a thermostat 14c that detects an overheating state in the burner 3a and stops the drive of the burner etc. is connected, and the signal is sent to the CP.
Enter in U10.
１５は同じく記憶装置で、所定の演算式、順序プログラ
ムを記憶するＲＯＭ（リード・オンリー・メモリ）及び
前記測定水分値等を記憶するＲＡＭ（ランダム・アクセ
ス・メモリ）とからなり、記憶したデータを随時ＣＰ
Ｕ １０に読み出す。15 is a storage device, which is composed of a ROM (read only memory) that stores predetermined calculation formulas and sequential programs, and a RAM (random access memory) that stores the measured moisture value, etc., and stores the stored data. Anytime CP
Read out to U10.
１６は同じ＜ＣＰＵｌ０の信号に基づいて、表承部１７
に所定の表示を行わせる表示駆動装置である。１８は同
じく加熱器３ａのバーナを駆動するバーナ駆動回路で、
点火ヒータ１８ａ、点火バルブ１８ｂ１電磁ポンプ１８
ｃ１バーナに一次空気を送給するバーナファン１８ｄ等
を所定のプログラムで駆動する。16 is the representation part 17 based on the same <CPU10 signal.
This is a display driving device that causes a device to display a predetermined display. 18 is a burner drive circuit that also drives the burner of the heater 3a;
Ignition heater 18a, ignition valve 18b1, electromagnetic pump 18
The burner fan 18d and the like that feed primary air to the c1 burner are driven according to a predetermined program.
１９は同じくモータ駆動回路で、！２物乾燥機ｌの各部
に設けたモータ、例えば昇降機５を動かす搬送モータ１
９ａ、前記回転バルブ３Ｃ１３Ｃ及び横送コンベヤ２ａ
を動かす循環モータ１９ｂ。19 is also the motor drive circuit,! A motor provided in each part of the two-product dryer 1, for example, a conveyance motor 1 that moves the elevator 5.
9a, the rotary valve 3C13C and the cross conveyor 2a
A circulation motor 19b that moves the.
排風機３ｂの送風モータ１９ｃ、排Ｍ機８の排壓機モー
タ１９ｄ５スロワ９のスロワモータ１９ｅ、前記昇降機
５から穀粒を上部コンベヤ４ａとスロワ９とに選択的に
移送する場所に設けた、流路を切り換えるダンパを動か
すダンパモータ１９ｆ、そして水分計７の水分計モータ
１９ｇ等を駆動する。The blower motor 19c of the blower 3b, the scraper motor 19d of the dumper 8, the thrower motor 19e of the thrower 9, and the stream provided at a location where grains are selectively transferred from the elevator 5 to the upper conveyor 4a and the thrower 9. It drives the damper motor 19f that moves the damper that switches paths, the moisture meter motor 19g of the moisture meter 7, etc.
この制御系を機能的に示すと第４図（Ａ ）、（Ｂ）の
ようになる。すなわち、この出願の発明は、水分検出手
段（ａ）の測定値から単純平均値を算出する単純平均値
算出手段（ｂ）と、同じ測定値からヒストグラムを作成
するヒストグラム作成手段（Ｃ）と、ヒストグラムから
整粒籾のみの平均水分ｔｉを算出する整粒平均値算出手
段（ｄ）と、前記単純平均値と整粒平均値との差、を算
出する水分値差算出手段（ｅ）と、この水分値差に基づ
いて、前記停止水分値もしくは前記単純平均値を補正す
る補正値を算出し、補正を行う未熟粒補正手段（ｆ）と
、前記水分値差に基づいて被乾燥穀粒の水分値のバラツ
キの大きさを判別し、信号を発するバラツキ判別手段（
ｇ）と、前記単純平均値が前記停止水分値に到達したか
、もしくは下回ったことを判断して、乾燥運転を停止さ
せる停止制御手段（ｈ）とを、すくなくとも有する。This control system is functionally shown in FIGS. 4(A) and 4(B). That is, the invention of this application includes a simple average value calculation means (b) that calculates a simple average value from the measured values of the moisture detection means (a), a histogram creation means (C) that creates a histogram from the same measured values, A grain size average value calculation means (d) that calculates the average moisture content ti of grain size grain only from the histogram; and a moisture value difference calculation means (e) that calculates the difference between the simple average value and the grain size average value; An immature grain correction means (f) that calculates and corrects a correction value for correcting the stopped moisture value or the simple average value based on the moisture value difference; Variation determination means (
g) and stop control means (h) for stopping the drying operation by determining whether the simple average value has reached or fallen below the stop moisture value.
加えて前記バラツキ判別手段が信号を発し・たとき作動
して、前記水分値差の大きさに応じた乾燥休止時間を算
定し、その時間だけ乾燥を休止する乾燥休止手段（ｉ）
もしくは乾燥速度低減量を算定し、その量だけ乾燥速度
を低減して乾燥運転を行う乾燥速度低減手段（°ｊ）を
設ける。In addition, drying pause means (i) operates when the variation determining means issues a signal, calculates a drying pause time according to the magnitude of the moisture value difference, and suspends drying for that period.
Alternatively, a drying speed reduction means (°j) is provided that calculates the drying speed reduction amount and performs drying operation by reducing the drying speed by that amount.
ざらに乾燥後の貯留時間設定を行った場合に、貯留時間
の長短及び前記水分値差の大きざに応じた補正値を算出
して、停止水分値もしくは単純平均値を補正する貯留時
間補正手段（ｋ）とを有する。Storage time correction means that corrects the stop moisture value or simple average value by calculating a correction value according to the length of the storage time and the magnitude of the moisture value difference when the storage time after drying is roughly set. (k).
次に作用について説明する。Next, the effect will be explained.
第５図のフローチャートにおいて、ステップ５１（以下
、ステップを［コ表示する）で水分計７が作動して乾燥
中の穀粒からサンプルを抽出し、水分測定を行う。得ら
れた測定値Ｍｎを記憶装置１５に記憶する［５２コ。こ
の測定を所定回数に達するまで繰り返し［５３］、所定
数の測定値データを得て、ＣＰＵｌ０は全測定値を加算
して単純平均値マを算出する［５４］。次いで［５５］
で乾燥工程が終期に入ったか否かを確かめる。すなわち
乾燥の終期は乾減率が低下する減率乾燥期であり、概ね
籾では２０％以下の水分値での乾燥を言い、簡易的に；
よ前記単純平均値が２０％を割り込んだか否かで判断す
る。［５５コでＮＯの時は［６７］ヘジヤンプする。In the flowchart of FIG. 5, in step 51 (hereinafter, steps are referred to as ""), the moisture meter 7 is activated to extract a sample from the grains being dried and measure the moisture content. The obtained measured value Mn is stored in the storage device 15 [52]. This measurement is repeated until a predetermined number of times is reached [53], a predetermined number of measured value data are obtained, and the CPU 10 adds up all the measured values to calculate a simple average value [54]. Then [55]
Check to see if the drying process has reached its final stage. In other words, the final stage of drying is the lapse rate drying period in which the drying loss rate decreases, which generally refers to drying at a moisture level of 20% or less for paddy.
The determination is made based on whether the simple average value falls below 20%. If the answer is NO on [55], jump [67].
［５５コでＹＥＳのときは、測定値Ｍｎのすべてに基づ
いてＣＰＵｌ０はヒストグラムを作成する［５６］。こ
のヒストグラムは例えｉｆ、水分値を０．５％幅で区切
り、測定水分値の出現回数で把握するものであり、−例
を第９図に示す。[If YES in step 55, CPU10 creates a histogram based on all of the measured values Mn [56]. This histogram, for example, divides moisture values into 0.5% widths and is grasped by the number of occurrences of measured moisture values; an example is shown in FIG.
次いで［５７］では前記ヒストグラム中でピーク値から
順に上下方向に各数値幅での測定値の出現回数をチエツ
クして、その出現回数が所定値以上の範囲の測定値を単
純平均して、これを整粒籾のみの平均水分値、つまり整
粒平均値Ｙｓとする。このことは乾燥中の籾水分のヒス
トグラム・パターンとそのサンプルの整玄米ヒストグラ
ム・パターン及び未熟米ヒストグラム・パターンの比較
から実験的に確認されている。なお、この整粒平均値を
全測定値のメジアン値としてもよいことが同様に実験的
に確認されている。Next, in [57], the number of occurrences of measured values in each numerical range is checked in order from the peak value in the vertical direction in the histogram, and the measured values in the range where the number of occurrences is equal to or greater than a predetermined value are simply averaged. Let be the average moisture value of only the sized grained paddy, that is, the sized average value Ys. This has been experimentally confirmed by comparing the histogram pattern of paddy moisture during drying with the histogram pattern of unfinished rice and the histogram pattern of unripe rice of the sample. Note that it has also been experimentally confirmed that this sized average value may be used as the median value of all measured values.
そして［−５８］で前記単純平均値にと整粒平装置″Ｘ
Ｓとの水分値差を水分値差算出手段ｅにより算出し、［
５９コでは未熟粒補正手段ｆにより水分値差の大きさに
応じて水分値の補正値を算出する。次いて［６０コでそ
の補正値により停止水分値ＭＴもしくは前記単純平均値
マを補正する。この場合の補正は、停止水分値ＭＴと単
純平均値ｙとの相対比較であるから、補正値を一方にプ
ラスするか、又は他方の値から控除するかして行う。Then, at [-58], the simple average value is determined by the grain leveling device "X"
The moisture value difference with S is calculated by the moisture value difference calculation means e, and [
In step 59, the immature grain correction means f calculates a correction value of the moisture value according to the magnitude of the moisture value difference. Next, in step 60, the stop moisture value MT or the simple average value MA is corrected using the correction value. Since the correction in this case is a relative comparison between the stop moisture value MT and the simple average value y, the correction value is added to one value or subtracted from the other value.
次に、［６１］で貯留時間設定の有無を判断し、ＮＯな
ら［６３］にジャンプし、ＹＥＳなら貯留時間補正手段
ｋにより、貯留時間の長短及び前記水分値差の大きざに
応じた補正値を算出し、それに基づく停止水分値ＭＴも
しくは前記単純平均値マの補正を行う［６２コ。Next, in [61], it is determined whether or not the storage time is set. If NO, the process jumps to [63]. If YES, the storage time correction means k performs correction according to the length of the storage time and the size of the moisture value difference. The value is calculated, and the stop moisture value MT or the simple average value MA is corrected based on it [62.
次に［６３］では、単純平均値マと整粒平均値￥Ｓとの
水分値差を所定値と比較して、被乾燥穀粒の水分値のバ
ラツキの大きさを判断する。所定値を超える（ＹＥＳ）
場合はバラツキを大とみなして信号を発し、［６４］で
表示部１７によりバラツキの大きさを表示し、必要な対
応処置について作業者に注意を促す警告を表示する。こ
のときバラツキの大きさに応じて段階的に警告内容を変
えることが有効であるが、所定値を１として大小のみの
判別であってもよい。Next, in [63], the difference in moisture value between the simple average value Ma and the grain size average value ¥S is compared with a predetermined value to determine the magnitude of the variation in the moisture value of the grains to be dried. Exceeds the specified value (YES)
If so, the dispersion is deemed to be large and a signal is issued, and in step [64], the display unit 17 displays the magnitude of the dispersion and displays a warning to alert the operator to necessary countermeasures. At this time, it is effective to change the warning content step by step according to the magnitude of the variation, but it is also possible to set the predetermined value to 1 and only determine the magnitude.
次に［６５コでは乾燥休止の指示が有るか否かを判断す
る。この場合、作業者が乾燥停止スイッチを押すか否か
と読み替えることができる。つまり、ＹＥＳの場合は自
動的に、又は手動操作で停止して乾燥休止し［６６］、
所定時間後に再度乾燥運転を開始する、又はその操作を
行い［６７コ、［６８］でプログラム化された所定の時
間が経過するまで乾燥運転が継続し、再び［５１］から
の測定を繰り返す。Next, in step 65, it is determined whether there is an instruction to suspend drying. In this case, it can be interpreted as whether or not the operator presses the drying stop switch. In other words, if YES, the drying pause is automatically or manually stopped [66],
After a predetermined time, the drying operation is started again or the operation is performed, and the drying operation continues until the predetermined time programmed in [67] and [68] has elapsed, and the measurement from [51] is repeated again.
前記［６５］でＮｏ、つまり停止操作がされないとき、
及びさきの［６３コてＮｏの場合、［６９コに進み、乾
燥が完了したか、つまり単純平均地マが停止水分値ＭＴ
に達したか否かを判断し、Ｎｏのときは［６７］に進ん
で、乾燥を継続し、ＹＥＳのときは乾燥運転を停止する
［７０コ。If No in the above [65], that is, the stop operation is not performed,
If the answer is No, proceed to step 69 and check if drying is complete, that is, if the simple average soil mass is the stop moisture value MT.
It is judged whether or not it has been reached, and if No, proceed to [67] to continue drying, and if YES, stop the drying operation [70].
第６図は他の実施例におけるフローチャートであって、
前記［６５コ、［６６コに代えて、［７１］ては、乾燥
速度低減か百がを判断し、Ｙ Ｅ Ｓのときは［７２コ
て乾燥速度低減を行い、乾燥運転を継続する［６７コ。FIG. 6 is a flowchart in another embodiment,
In place of [65 and 66 above, [71] determines whether the drying speed should be reduced or not, and if YES, the drying speed is reduced using [72] and the drying operation is continued. 67 pieces.
又、［７１］でＮｏのときは、［６９］に進む。Also, if No in [71], proceed to [69].
次に上記の各ステップにおいて実施する制御の具体的な
内容について説明する。Next, specific details of the control performed in each of the above steps will be explained.
ところで、水分計において、籾粒を一粒ずつ十分に圧砕
して測定を行い、その測定値データが十分に多い場合（
例、１００粒以上）、全測定値の単純平均値マは穀物乾
燥機の自動停止後も変化は少なく穀物水分の標準測定法
で得られた粗水分値とよく一致する。したがって標準測
定法での安定状の水分値と、玄米の水分値との差を考慮
して目盛設定を行えば、自動的に水分測定を行う乾燥制
御装置の停止精度の向上が期待できる。この場合の各水
分値は一般に次の間係が認められる。By the way, when using a moisture meter, if the rice grains are thoroughly crushed and measured one by one, and the measured value data is large enough (
(e.g., 100 grains or more), the simple average value of all measured values does not change much even after the grain dryer is automatically stopped, and agrees well with the crude moisture value obtained by the standard grain moisture measurement method. Therefore, if the scale is set in consideration of the difference between the stable moisture value according to the standard measurement method and the moisture value of brown rice, it is expected that the stopping accuracy of the drying control device that automatically measures moisture will be improved. In this case, the following relationships are generally accepted for each moisture value.
Ｍ （ｇ）＝Ｍ （ｍ）＋ａ （ｔａ）ａ （ｔ ａ）
＃ＣＭ （ｍ） −Ｍ （ｈ） ］ １５（Ｍ（ｇ）
は粗玄米の平均水分値、
Ｍ（ｍ）は籾の平均水分値、
α（ｔａ）は変動値であって第８図に示すように乾燥停
止後の経過時間ｔａにしたがって１、籾中の粗玄米から
籾殻に水分移行することによって生ずる玄米における水
分変化を意味する。M (g) = M (m) + a (ta) a (ta)
#CM (m) −M (h) ] 15(M(g)
is the average moisture value of coarse brown rice, M (m) is the average moisture value of paddy, and α (ta) is the fluctuation value. It refers to the change in moisture in brown rice that occurs due to moisture transfer from coarse brown rice to rice husks.
Ｍ （１１）は籾殻の水分値である。）実測したところ
、０．５％〜１．０％の毎時乾減率で乾燥した籾にあっ
ては、
０．３≦α（ｔａ）≦１．０
程度である。M (11) is the moisture value of rice husk. )According to actual measurements, for paddy dried at an hourly drying loss rate of 0.5% to 1.0%, it is approximately 0.3≦α(ta)≦1.0.
ところが、実際の乾燥において、水分測定を行った結果
、第９図（Ａ ）、（Ｂ）に示すような傾向を見ること
ができた。すなわち、（Ａ ）においては被乾燥穀粒中
に未熟粒の混入が少ない場合であって、籾全体の単純平
均値ｉはヒストグラムの略中心位置に現われ、整粒平均
値Ｙ ｓ ！、ｔ ￥より若干低めながら、これもヒス
トグラムのピーク値に近い中心位置に現われる。乾燥直
後の籾殻は、表層にあるからほぼ同等に乾き、その水分
値は玄米水分に拘わりなく近似したものと見られるので
、整粒玄米の水分は、全体の粗玄米平均値よりは低く、
しかも近似した水分値を示す。そうして実験を繰り返し
たところ、未熟粒の混入が多い場合には、第９図（Ｂ）
に示す如く籾の整粒平均値マＳが籾全体の単純平均値マ
から垂離する傾向が見られ、加えて整粒玄米の水分値も
粗玄米の平均水分値から垂離する。However, as a result of moisture measurement during actual drying, trends as shown in FIGS. 9(A) and 9(B) were observed. That is, in (A), there is a small amount of immature grains mixed into the grains to be dried, and the simple average value i of the whole paddy appears at approximately the center position of the histogram, and the grain size average value Y s! , t ¥ This also appears at the center position close to the peak value of the histogram, although it is slightly lower than ¥. Immediately after drying, the rice husk dries almost equally since it is on the surface layer, and its moisture value is considered to be similar regardless of the moisture content of brown rice, so the moisture content of grained brown rice is lower than the average value of coarse brown rice as a whole.
Moreover, they show similar moisture values. When the experiment was repeated, it was found that if there were many immature grains mixed in, as shown in Figure 9 (B).
As shown in Figure 2, there is a tendency for the grain-sized average value MaS of paddy grains to deviate from the simple average value Ma of the entire paddy, and in addition, the moisture value of grain-sized brown rice also deviates from the average moisture value of coarse brown rice.
この傾向をよく見ると、ヒストグラムのピーク値に近い
ところにある整粒平均値マＳと整粒玄米の水分値Ｘｇｓ
とが近似して現われることが判明した。If we look closely at this trend, we can see that the grain average value MaS, which is close to the peak value of the histogram, and the moisture value Xgs of grain grain brown rice
It has been found that these appear in close approximation.
又、第９図から分かったことは籾全体の単純平均値マと
整粒平均値マＳとの差（￥−￥Ｓ）が被乾燥穀粒中の未
熟粒混入率（ｙ）と強く相間することである。これを図
にプロットして第７図を得て、
ｙ＝ａ （ｘ−マｓ） ＋ｂ
の間係を確認した。そして、（Ｘ−ＸＳ）の値に関連し
て精度よく未熟粒混入率を算出することが可能となった
。In addition, it was found from Figure 9 that the difference between the simple average value Ma of the whole paddy and the grain size average value Ma S (￥-￥ S) is strongly correlated with the immature grain contamination rate (y) in the grains to be dried. It is to be. This was plotted in a diagram to obtain Figure 7, and the relationship y=a (x-mas) +b was confirmed. Then, it became possible to accurately calculate the immature grain contamination rate in relation to the value of (X-XS).
さらにこの未熟粒混入率ｙと、乾燥停止後数日経過して
安定したサンプルの（票準測定法での整粒玄米水分値Ｘ
ｇｓ及び籾水分値Ｍ（ｍ）との差に間しては、第８図に
示すような相関間係が認められた。これによると、乾燥
停止時の籾水分測定が正確であったとしても、整粒玄米
の水分は未熟粒混入率ｙの大小に応じて影響を受け、ｙ
が小さいときは水分過多の傾向となゆ、°ｙが大きいと
過乾燥気味となる。このことから、（Ｘ−ＸＳ）の大き
ざに応じて、未熟粒に間する補正値を算出し、この補正
値でもって測定水分値である単純平均値ｙ、もしくは停
止水分値ＭＴを補正して、マとＭＴとを比較することに
より、停止制御を行う。具体的には、
Ｘｇｓ−Ｍ（ｍ）＝γｙ＋ε
式から、
Ｘｇｓ＝Ｍ（ｍ）＋γｙ＋ε
井マ ＋ γｙ＋ε
＃ｙ＋γａ（マーｘｓ）＋γｂ＋ε
Ｌ：ｒｘＣ
（なお、ＸＣは乾燥中の整粒平均値￥Ｓを乾燥停止後に
未熟粒混入率ｙによって生ずる水分変化に応じて補正し
た値である。）
これより便宜的に簡易化して、未熟粒混入率ｙが５％以
下の場合、０．３％〜０．５％多く乾燥する。すなわち
、Ｍ Ｔ≧ｘ＋０．３ （〜０．５）として比較判断す
る。又、ｙが１５％以上の場合、０．３〜０．５％早め
に乾燥を停止する。すなわちＭＴ≦ｘ−０，３（〜０．
５）として比較する。こうした未熟粒補正を行う（前記
［６０１）ことで、停止精度の向上及びひいては整粒玄
米の歩留まりを向上させる。Furthermore, this immature grain contamination rate y and the stable brown rice moisture value
A correlation as shown in FIG. 8 was observed between the difference between gs and the rice moisture value M (m). According to this, even if the paddy moisture measurement at the time of stopping drying is accurate, the moisture content of grain-sized brown rice is affected by the immature grain contamination rate y.
When °y is small, there is a tendency for the water to be over-hydrated, and when °y is large, it tends to be over-dry. From this, a correction value for immature grains is calculated according to the size difference of (X-XS), and the simple average value y, which is the measured moisture value, or the stopped moisture value MT is corrected with this correction value. Stop control is performed by comparing MA and MT. Specifically, from the formula Xgs-M(m)=γy+ε, This is a value corrected according to the moisture change caused by the immature grain contamination rate y after drying is stopped.) This is simplified for convenience, and if the immature grain contamination rate y is 5% or less, it is 0.3% ~ Dry 0.5% more. That is, a comparative judgment is made on the assumption that M T≧x+0.3 (~0.5). Moreover, when y is 15% or more, drying is stopped 0.3 to 0.5% earlier. That is, MT≦x−0,3(~0.
Compare as 5). By performing such immature grain correction ([601] above), the stopping accuracy and the yield of grain-sized brown rice are improved.
ざらに特開昭６３−２０１４８１号公報によれば、乾燥
停止直後から整粒玄米の水分は被乾燥穀粒中の未熟米混
入率によって、種々異なる変化を示しながら安定に向か
うことが明らかである。この整粒玄米の水分が経時変化
を示す要因としては２つのことが指摘できる。According to Zarani JP-A No. 63-201481, it is clear that the moisture content of grain-sized brown rice becomes stable immediately after drying stops, showing various changes depending on the percentage of immature rice mixed in the grains to be dried. . There are two factors that can be pointed out as factors that cause the moisture content of grained brown rice to change over time.
１つは、各穀粒の内部において、玄米から籾殻への水分
移行が生ずるからである。この場合、未熟粒混入率が低
いときは約１〜２時間で変化が終了する。したがって玄
米水分は０．３〜０．７％程度低下するが、籾摺時期に
関係する水分変動を考慮しなくてもよい。One reason is that moisture transfer from brown rice to rice husks occurs inside each grain. In this case, when the immature grain contamination rate is low, the change is completed in about 1 to 2 hours. Therefore, the moisture content of brown rice decreases by about 0.3 to 0.7%, but there is no need to take into account moisture fluctuations related to the hulling period.
もう１つは、各穀粒相互の間で高水分粒から低水分粒へ
の水分移行が生ずるからである。すなわち、未熟粒混入
率が高い場合、乾燥停止制御を単純平均値τで行ってい
るため１．整粒平均値ｘｓは低水分となっていて、混入
する未熟粒との水分格差は大きい。そのため、乾燥浮止
後３〜５時間ころから粒間の水分移行が進む。そして、
究極的には整粒籾において水分の戻りは２％にも及ぶこ
とが判明している。したがって、乾燥停止制御の籾摺作
業を行うまでの貯留時間によって、籾摺作業で得られる
整粒玄米の水分は異なることとなり、見かけ上穀物乾燥
機の自動停止制御における水分誤差が大きくなる。The other reason is that moisture transfer occurs between grains from high-moisture grains to low-moisture grains. In other words, when the rate of immature grains is high, drying stop control is performed using the simple average value τ; The grain size average value xs has a low moisture content, and there is a large difference in moisture content from mixed immature grains. Therefore, water transfer between grains progresses from about 3 to 5 hours after drying and floating. and,
Ultimately, it has been found that the return of moisture in grained paddy amounts to as much as 2%. Therefore, the moisture content of the grain-sized brown rice obtained in the hulling operation differs depending on the storage time until the hulling operation of the drying stop control is performed, which apparently increases the moisture error in the automatic stop control of the grain dryer.
しかし、この場合でも整粒籾の水分値が乾燥停止直後か
ら安定するまでに変化する範囲は、里純平均値Ｘと整粒
平均値マＳの間にあることが分かった。して見ると、そ
の変化はつねにＸＳからＹへと向かうものであるから、
全体の変化量に対して貯留する時間Ｓの割合で算定する
ことができる。そこでこれを利用して整粒玄米の水分を
補正するべく
ｘｄ＝Ｓｘ＋ （１−３）ｘｓ
式で算出した補正値で捉え（前記［６２］）、これを設
定した停止水分値ＭＴと比較して停止制御を行う。この
場合の係数Ｓは、例えば、籾層作業開始までの貯留時間
に応じて、
５時間以内のとき、５＝０
１２時間以内のとき、Ｓ＝ｉ／４
２４時間以内のとき、Ｓ＝１／２
１〜２日以内のとき、Ｓ＝３／４
２日以上のとき、 Ｓ＝１
と設定し、設定スイッチを設けて入力することができる
。However, even in this case, it was found that the range in which the moisture value of the sized rice grains changes from immediately after drying stops until it becomes stable is between the Satomi average value X and the sized average value MaS. If you look at it, the change is always from XS to Y, so
It can be calculated by the ratio of the storage time S to the total amount of change. Therefore, in order to correct the moisture content of grain-sized brown rice using this, the correction value calculated using the formula xd=Sx+(1-3)xs is used (see [62] above), and this is compared with the set stop moisture value MT. performs stop control. The coefficient S in this case is, for example, depending on the storage time until the start of paddy layer work: 5=0 if it is within 5 hours, S=i/4 if it is within 12 hours, S=1 if it is within 24 hours. /2 If it is within 1 to 2 days, S=3/4 If it is more than 2 days, S=1 can be set, and a setting switch can be provided for input.
さらに未熟粒が多い場合、前述のように整粒籾の水分が
貯留中１．５〜２．０％も上昇することは胴割れの原因
でもあった。したがって、これを避けるために乾燥の終
期、つまり乾減率が低下する状態になったら、−旦乾燥
を停止して各粒間の水分格差を縮減することが行われて
きた。しかし、−様に乾燥を休止したのでは休止時間が
いたずらに長くなるので、農作業を計画的に能率よく遂
行することができない。この発明では、前記単純平均値
Ｙと整粒平均値￥Ｓとから被乾燥穀粒のバラツキの大き
ざを判別し、１．０＜ｘ−ｘｓの場合には、休止時間Ｔ
Ｋを次式で求めて乾燥を休止することとした。（［６６
］）
ＴＫ＝ｋ （、￥−ｘｓ）
（ｋは実験的に求めて、３〜４となり、例えば（Ｘ−Ｘ
Ｓ）が１．２％ならば３．６時間〜４．８時間と算出で
きる）
あるいは又、１．０＜ｘ−￥Ｓの場合に、整粒平均値Ｘ
Ｓの低下をゆるやかにするために、ＸＳ≦ＭＴになった
時点で、設定熱風温度ＴｓをΔＴＳだけ下げて乾燥を継
続することとした。（［７２コ ）
ΔＴｓ＝ （Ｔｓ−Ｔａ）ＸＤ
（Ｔａは外気温、Ｄは次の式で得られる変数である。Furthermore, when there are many immature grains, the water content of the grained paddy increases by 1.5 to 2.0% during storage as described above, which is also a cause of shell cracking. Therefore, in order to avoid this, it has been practiced to stop drying at the end of drying, that is, when the drying loss rate decreases, to reduce the moisture difference between each grain. However, if drying is suspended as in -, the suspension time becomes unnecessarily long, and agricultural work cannot be carried out systematically and efficiently. In this invention, the size of the variation in the grains to be dried is determined from the simple average value Y and the grading average value ¥S, and if 1.0<x-xs, the rest time T
After determining K using the following formula, it was decided to suspend the drying. ([66
]) TK=k (, ¥-xs) (k is determined experimentally and becomes 3 to 4, for example, (X-X
If S) is 1.2%, it can be calculated as 3.6 hours to 4.8 hours) Alternatively, if 1.0<x-￥S, the average value of size
In order to slow down the decrease in S, when XS≦MT, the set hot air temperature Ts was lowered by ΔTS to continue drying. ([72 pieces) ΔTs=(Ts-Ta)XD (Ta is the outside temperature, and D is a variable obtained by the following formula.
Ｄ＝ｈＸ （マーｘｓ）
ｈは実験で得た係数で、０．２〜０．３である）・この
ようにして休止時間を設定するにも、又乾燥速度を低減
するにも、合理的な判断基準を提供するとともに、籾の
胴割を防止することができた［発明の効果］
この出願の発明は、上記の通りの構成によって次の効果
を果たす。D=h [Effects of the Invention] The invention of this application achieves the following effects with the configuration as described above.
第１発明は、整粒の水分値を的確に把握して乾燥を制御
し、しかも未熟粒の混入率を正確に把握して未熟粒の影
響を考慮した未熟粒補正を行い、かつ被乾燥穀粒の水分
のバラツキを警告するので、作業者が適切に乾燥機の制
御操作を行うことができて、停止精度の向上を果たす。The first invention is to control drying by accurately grasping the moisture value of sized grains, to accurately grasp the contamination rate of immature grains, to perform immature grain correction in consideration of the influence of immature grains, and to Since it warns of variations in the moisture content of grains, the operator can appropriately control the dryer, improving stopping accuracy.
第２発明は、正確に把握した未熟粒の混入率に基づいて
、乾燥休止時間を自動的に算出して休止運転を行うので
、停止精度の向上及び穀粒の胴割れ防止を実現するとと
もに、操作を簡単にした効果を果たす。The second invention automatically calculates the drying pause time based on the accurately grasped mixing rate of immature grains and performs the pause operation, thereby improving stopping accuracy and preventing kernel shell cracking. This has the effect of simplifying the operation.
第３発明は、正確に把握した未熟粒の混入率に基づいて
、乾燥速度低減量を算出し、自動的に乾燥速度低減の制
御を行うので、停止精度の向上及び穀粒の胴割れ防、２
止を実現するとともに、操作を簡単にした効果を果たす
。The third invention calculates the drying speed reduction amount based on the accurately grasped mixing rate of immature grains and automatically controls the drying speed reduction, thereby improving stopping accuracy and preventing grain shell cracking. 2
This has the effect of making it easier to operate.
第４発明は、正確に把握した未熟粒の混入率及び乾燥停
止後籾摺作業開始までの貯留時間に応じた水分値補正を
行って停止制御を行うので、籾摺後適正な水分の玄米の
整粒を得ることができ、乾燥における停止精度の向上及
び歩留まりの向上、さらには運転操作を簡略にした効果
を果たすことができる。The fourth invention performs stop control by correcting the moisture value according to the accurately grasped mixing rate of immature grains and the storage time from the stop of drying until the start of hulling, so that brown rice with an appropriate moisture content after hulling is carried out. It is possible to obtain sized particles, improve the stopping accuracy and yield during drying, and furthermore, it is possible to achieve the effect of simplifying the operation.
第１〜２図は、この発明を実施した穀物乾燥機の縦断面
図及び側面図、第３図は本発明の制御系のブロック図、
第４図（Ａ）、（Ｂ）は同じく機能説明図、第５図は同
じくフローチャート、第６図は他の実施例のフローチャ
ート、第７〜８図は説明用相関図、第９図（Ａ）、（Ｂ
）はヒストダラムの例を示す説明図である。
７は水分計、１０はＣＰＴＪ、１１はＡ／Ｄ変換部、１
２は入力回路、１５は記憶部、１７は表示部である。1 and 2 are a longitudinal sectional view and a side view of a grain dryer embodying the present invention, and FIG. 3 is a block diagram of the control system of the present invention.
4(A) and 4(B) are functional explanatory diagrams, FIG. 5 is a flowchart, FIG. 6 is a flowchart of another embodiment, FIGS. 7 and 8 are correlation diagrams for explanation, and FIG. ), (B
) is an explanatory diagram showing an example of histodaram. 7 is a moisture meter, 10 is a CPTJ, 11 is an A/D converter, 1
2 is an input circuit, 15 is a storage section, and 17 is a display section.
Claims (4)
制御装置。 Ａ、被乾燥穀粒を一粒ずつ所定回数測定を行ってその水
分値を検出する水分検出手段、 Ｂ、前記水分検出手段で所定時間ごとに得られる測定値
により、水分値ヒストグラムを作成するヒストグラム作
成手段、 Ｃ、前記測定値の全部から単純平均値を算出する単純平
均値算出手段、 Ｄ、前記ヒストグラムにより整粒籾のみの平均水分値を
算出する整粒平均値算出手段、 Ｅ、前記単純平均値と整粒平均値との水分値差を算出す
る水分値差算出手段、 Ｆ、前記水分値差に基づいて、前記停止水分値もしくは
前記単純平均値を補正する補正値を算出し、かつ補正す
る未熟粒補正手段、 Ｇ、前記水分値差の大きさにより被乾燥穀粒の水分値の
バラツキが一定以上のとき信号を発するバラツキ判別手
段、 Ｈ、前記単純平均値が前記停止水分値に到達したか、も
しくは下回ったことを判断して、乾燥運転を停止させる
停止制御手段。(1) A drying control device for a grain dryer that has the following requirements. A. Moisture detection means for detecting the moisture value by measuring each dried grain a predetermined number of times; B. A histogram for creating a moisture value histogram from the measured values obtained at predetermined time intervals by the moisture detection means. creating means; C. simple average value calculation means for calculating a simple average value from all of the measured values; D. grain size average value calculation means for calculating the average moisture value of only grained paddy from the histogram; Moisture value difference calculation means for calculating a moisture value difference between the average value and the sized average value; F. Calculating a correction value for correcting the stop moisture value or the simple average value based on the moisture value difference; Immature grain correction means for correcting, G. Variation determining means for issuing a signal when the variation in the moisture value of the grains to be dried exceeds a certain level based on the magnitude of the moisture value difference, H. The simple average value is the stopped moisture value. A stop control means that stops the drying operation by determining that the drying temperature has reached or fallen below.
機における乾燥制御装置。 Ｉ、前記水分値差に基づいて乾燥休止時間を算出し、前
記バラツキ判別手段が発するバラツキ信号により乾燥運
転を休止し、前記乾燥休止時間経過後再度乾燥を開始す
る乾燥休止手段。(2) The drying control device for a grain dryer according to claim 1, which comprises the following requirements. I. Drying suspension means that calculates a drying suspension time based on the moisture value difference, suspends drying operation in response to a variation signal issued by the variation determination means, and restarts drying after the drying suspension time has elapsed.
機における乾燥制御装置。 Ｊ、前記水分値差に基づいて乾燥速度の低減量を算出し
、前記バラツキ判別手段が発するバラツキ信号により前
記低減量だけ乾燥速度を低減する乾燥速度低減手段。(3) The drying control device for a grain dryer according to claim 1, which comprises the following requirements. J. A drying rate reducing unit that calculates a reduction amount in the drying rate based on the moisture value difference and reduces the drying rate by the reduction amount based on a variation signal issued by the variation determination unit.
機における乾燥制御装置。 Ｋ、前記停止制御手段が作動してから次の籾摺作業開始
までの貯留時間を設定した場合に、前記水分値差と前記
貯留時間とにより補正値を算出し、この補正値でもって
前記停止水分値、もしくは前記単純平均値を補正する貯
留時間補正手段。(4) The drying control device for a grain dryer according to claim 1, which comprises the following requirements. K. When the storage time from the activation of the stop control means to the start of the next hulling operation is set, a correction value is calculated from the moisture value difference and the storage time, and this correction value is used to control the stoppage. Storage time correction means for correcting the moisture value or the simple average value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158789A JPH0743213B2 (en) | 1989-02-10 | 1989-02-10 | Drying control device in grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158789A JPH0743213B2 (en) | 1989-02-10 | 1989-02-10 | Drying control device in grain dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02213691A true JPH02213691A (en) | 1990-08-24 |
| JPH0743213B2 JPH0743213B2 (en) | 1995-05-15 |
Family
ID=12335322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3158789A Expired - Lifetime JPH0743213B2 (en) | 1989-02-10 | 1989-02-10 | Drying control device in grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743213B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047349A (en) * | 2007-08-20 | 2009-03-05 | Yamamoto Co Ltd | Grain drying device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5211720B2 (en) * | 2008-01-31 | 2013-06-12 | 井関農機株式会社 | Grain dryer |
| JP5423861B2 (en) * | 2012-10-18 | 2014-02-19 | 井関農機株式会社 | Grain dryer |
-
1989
- 1989-02-10 JP JP3158789A patent/JPH0743213B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047349A (en) * | 2007-08-20 | 2009-03-05 | Yamamoto Co Ltd | Grain drying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0743213B2 (en) | 1995-05-15 |
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