JPH0734409A - Heating control method for road surface heating device - Google Patents
Heating control method for road surface heating deviceInfo
- Publication number
- JPH0734409A JPH0734409A JP19883093A JP19883093A JPH0734409A JP H0734409 A JPH0734409 A JP H0734409A JP 19883093 A JP19883093 A JP 19883093A JP 19883093 A JP19883093 A JP 19883093A JP H0734409 A JPH0734409 A JP H0734409A
- Authority
- JP
- Japan
- Prior art keywords
- road surface
- temperature
- preheating
- heating
- snow
- 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.)
- Pending
Links
Landscapes
- Surface Heating Bodies (AREA)
- Road Paving Structures (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は道路の舗装体温度、路面
水分、外気温度、降雪の有無等のデータに基づいて路面
を加熱して、路面の融雪、凍結防止等を行う路面加熱装
置の加熱条件を自動的に制御する方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface heating device for heating the road surface on the basis of data such as the temperature of pavement on the road, the water content of the road, the outside air temperature and the presence or absence of snowfall to prevent the snow from melting or freezing on the road surface. The present invention relates to a method for automatically controlling heating conditions.
【0002】[0002]
【従来の技術】路面加熱装置の加熱条件(加熱温度、予
熱設定温度、予熱時間の開始時間、終了時間等)を自動
的に制御する方法は従来から各種ある。その主なものと
して外気温度、路面水分(降雪もセンサに内蔵した
ヒータで溶かして水分として検出可能)降雪の有無を
検出し、これらの3種の検出データに基づいて決定する
方法があった。このうち、一般的なものとしてはと
のデータを併合して使用する方法、のデータだけを使
用する方法が多い。この他に簡便な方法として、直接舗
装体温度を融雪に適した温度(例えばヒータ面で10〜
15℃、路面で1〜3℃程度)に制御する方式もある。2. Description of the Related Art There are various conventional methods for automatically controlling the heating conditions (heating temperature, preheating set temperature, preheating time start time, end time, etc.) of a road surface heating device. As a main one, there was a method of detecting the outside air temperature, road surface moisture (snow can be also detected as moisture by melting with a heater built into the sensor), and made a determination based on these three types of detection data. Among them, as a general method, there are many methods of merging and using the data of and, and a method of using only the data of. As another simple method, the temperature of the pavement can be directly adjusted to a temperature suitable for snow melting (for example, 10 to 10 on the heater surface).
There is also a system in which the temperature is controlled at 15 ° C and about 1 to 3 ° C on the road surface.
【0003】[0003]
【発明が解決しようとする課題】道路舗装体の熱容量は
非常に大きいため、通常は、降雪が始まってから融雪ヒ
ータに通電を行っても降雪初期には融雪効果が得られな
い。そこで従来は一般に非降雪時や非積雪時に、急な降
雪や凍結に備えて融雪ヒータに予め通電して道路舗装体
を予熱しておく予熱通電が行われている。ある計測例で
は前記のデータだけを使用する制御方法では全運転時
間の45%が予熱のための加熱、20%が融雪時の加
熱、35%がOFFとなっている。しかも、予熱温度は
外気温度が低いほど高く設定(制御装置により自動設
定)されるため、予熱(降雪していない時の加熱)によ
る消費電力が増加する。このため予熱時の消費熱量の多
いことが大きな問題となっている。Since the heat capacity of the road pavement is very large, normally, even if the snow melting heater is energized after the snow starts, the snow melting effect cannot be obtained in the early stage of the snowfall. Therefore, conventionally, during non-snowfall or non-snowfall, preheating energization is performed to pre-energize the snow melting heater to preheat the road pavement in preparation for sudden snowfall or freezing. In a measurement example, in the control method using only the above data, 45% of the total operating time is heating for preheating, 20% is heating during snow melting, and 35% is OFF. Moreover, the preheating temperature is set higher as the outside air temperature is lower (automatically set by the control device), so that power consumption by preheating (heating when snow is not falling) increases. For this reason, the large amount of heat consumed during preheating has become a major problem.
【0004】本発明の目的は、屋外の明るさをも加熱温
度設定データとして採用することにより、路面加熱装置
における予熱時間を短くして、効率良く路面の予熱、融
雪或は凍結防止ができるようにすることにある。An object of the present invention is to use the outdoor brightness as the heating temperature setting data to shorten the preheating time in the road surface heating device so that the road surface can be preheated efficiently and snow melting or freezing can be prevented. Is to
【0005】[0005]
【課題を解決するための手段】本件発明者は予熱時間を
短くして効率のよい融雪或は凍結防止ができるようにす
るため鋭意研究を重ねた結果、外気温が低くても良く晴
れて明るい時は短時間のうちに降雪の始まることは少な
い(殆どない)ため、予熱温度を低く設定することが可
能であることに着目し、本発明を完成させたものであ
る。The inventor of the present invention has conducted extensive studies to shorten the preheating time and effectively prevent snow melting or freezing, and as a result, it is fine and bright even if the outside temperature is low. The present invention has been completed, paying attention to the fact that it is possible to set the preheating temperature to a low level because snow does not start (almost never) within a short time.
【0006】本発明の路面加熱装置の加熱制御方法は、
舗装体温度、路面水分、外気温度、降雪の有無等のデー
タに基づいて路面を加熱して路面の予熱、路面の融雪、
凍結防止等を行う路面加熱装置の加熱制御方法におい
て、屋外の明るさをも加熱条件設定のデータとして使用
するものである。A heating control method for a road surface heating apparatus according to the present invention is
Preheating the road surface based on data such as pavement temperature, road surface moisture, outside air temperature, presence or absence of snowfall, road surface snow melting,
In a heating control method for a road surface heating device for preventing freezing, outdoor brightness is also used as data for setting heating conditions.
【0007】[0007]
【作用】本発明の路面加熱装置の加熱制御方法では、屋
外の明るさをも加熱データとするので、昼間の予熱運転
時の舗装体温度を、晴れている時(屋外が明るいとき:
通常は降雪の確率が低く、雪が降りだすまでの時間も長
い)に低くして予熱運転の消費電力量を減少させること
ができる。In the heating control method for the road surface heating device according to the present invention, since the outdoor brightness is also used as the heating data, the pavement temperature during the daytime preheating operation is when the weather is sunny (when the outdoor weather is
Normally, the probability of snowfall is low, and the time it takes for snow to start is long).
【0008】[0008]
【実施例】本発明の路面加熱装置の加熱制御方法は、路
面加熱装置の温度制御を行う場合に従来から行われてい
る舗装体温度、路面水分、外気温度、降雪の有無等の検
出の他に、屋外の明るさをも検出し、これらの検出デー
タに基づいて路面加熱装置の加熱条件を設定する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A heating control method for a road surface heating device according to the present invention is a method for detecting the temperature of a pavement body, road surface moisture, outside air temperature, the presence or absence of snowfall, etc., which is conventionally used when the temperature of the road surface heating device is controlled. In addition, the outdoor brightness is also detected, and the heating condition of the road surface heating device is set based on the detected data.
【0009】屋外の明るさを検出するには例えば日射計
を使用し、その日射計の判断点を400〜600kca
l/m2 h(約0.45〜0.7kw/m2 )に設定
し、この値を越えた日射量のある時は晴れと判断する。To detect the brightness of the outdoors, for example, a pyranometer is used, and the judgment point of the pyranometer is 400 to 600 kca.
It is set to 1 / m 2 h (about 0.45 to 0.7 kw / m 2 ), and when there is an amount of solar radiation exceeding this value, it is judged to be sunny.
【0010】本実施例では前記日射計或は照度計で空の
比較的広い範囲の明るさを検出し、このデータに応じ
て、別途検出された外気温度の値によって決められた予
熱温度を下げるとか、前記の検出データがある明るさを
越えたら晴れと判断して通常の予熱設定温度を下げると
か、逆に、ある明るさ以下であれば曇りと判断して通常
の予熱設定温度のままとする。In the present embodiment, the pyranometer or illuminance meter detects the brightness of a relatively wide range of the sky, and the preheat temperature determined by the separately detected outside air temperature value is lowered according to this data. Or, if the detected data exceeds a certain brightness, it is judged as clear and the normal preheat set temperature is lowered, or conversely, if it is below a certain brightness, it is judged as cloudy and the normal preheat set temperature is kept. To do.
【0011】通常、路面加熱装置の予熱温度は通常は外
気温度が低い時は高めに、外気温度が高い時は低めに設
定され、その値は5〜8℃程度である。これまでは外気
温度の低い時に〜5℃とプラスの温度に予熱するために
相当に多量の予熱電力を消費していた。この実施例では
晴れと判断された場合は通常の予熱設定温度に比べて最
大5℃設定温度を低くした。低下幅は次の様に設定し
た。 路面水分 有 :低下幅小 無:低下幅大 内蔵時計での時刻 朝、夕:低下幅小 昼:低下幅大Usually, the preheating temperature of the road surface heating device is usually set higher when the outside air temperature is low, and set lower when the outside air temperature is high, and the value is about 5 to 8 ° C. Until now, a considerable amount of preheating power was consumed to preheat to a positive temperature of -5 ° C when the outside air temperature is low. In this example, when it was determined that the weather was fine, the maximum set temperature of 5 ° C. was set lower than the normal preheat set temperature. The decrease width was set as follows. Road surface moisture Yes: Small decrease width No: Large decrease width Time on built-in clock Morning, Evening: Small decrease daytime: Large decrease
【0012】図1に本発明の路面加熱装置の加熱制御方
法を採用した路面加熱装置の一例を示す。図1において
1は屋外の明るさを検知する日射計、2は路面の降雪を
検知する降雪検知器、3は外気温センサ、4は路面水分
センサ、5は舗装体温度センサ、6は日射計1で検出さ
れた日射量を電気信号に変換する日射量/電気変換器、
7は外気温センサ3で検出された外気温を電気信号に変
換する外気温/電気変換器、8は路面水分センサ4で検
出された水分を電気信号に変換する水分/電気変換器、
9は舗装体温度センサ5で検出された舗装体温度を電気
信号に変換する舗装体温/電気変換器、10は制御器本
体である。この制御器本体10は日射量/電気変換器
6、外気温/電気変換器7、水分/電気変換器8、舗装
体温/電気変換器9からの信号に基づいて、スイッチン
グ素子11をON、OFF制御して、電源12から路面
加熱用ヒータ13に供給する電力をON、OFF制御す
るものである。この制御器本体10は時計機能を内蔵す
るものが望ましい。FIG. 1 shows an example of a road surface heating apparatus which employs the heating control method for the road surface heating apparatus of the present invention. In FIG. 1, 1 is a pyranometer for detecting outdoor brightness, 2 is a snowfall detector for detecting snowfall on a road surface, 3 is an outside air temperature sensor, 4 is a road surface moisture sensor, 5 is a pavement temperature sensor, and 6 is a pyranometer. Solar radiation amount / electrical converter that converts the solar radiation amount detected in 1 into an electric signal,
Reference numeral 7 is an outside air temperature / electrical converter that converts the outside air temperature detected by the outside air temperature sensor 3 into an electric signal, and 8 is a moisture / electricity converter that converts the moisture detected by the road surface moisture sensor 4 into an electric signal,
Reference numeral 9 is a pavement body temperature / electricity converter for converting the pavement body temperature detected by the pavement body temperature sensor 5 into an electric signal, and 10 is a controller body. This controller body 10 turns on / off the switching element 11 based on signals from the solar radiation / electrical converter 6, the outside air temperature / electrical converter 7, the moisture / electrical converter 8, and the pavement body temperature / electrical converter 9. The electric power supplied from the power source 12 to the heater 13 for heating the road surface is controlled to be turned on and off. The controller body 10 preferably has a built-in clock function.
【0013】前記した実施例は電気式加熱方式の場合で
あるが、本発明は温水式加熱方式であっても電気式加熱
方式の場合と同様にスイッチング素子11をON、OF
F制御して、図示されていない路面加熱用パイプ(路面
加熱用ヒータ13に相当)への通湯を停止したり、再開
したりして予熱を制御することができる。Although the above-mentioned embodiment is the case of the electric heating system, the present invention is such that the switching element 11 is turned ON and OF in the hot water heating system as in the case of the electric heating system.
By performing F control, preheating can be controlled by stopping or restarting hot water flow to a road surface heating pipe (corresponding to the road surface heating heater 13) not shown.
【0014】また、本発明では日射計の代わりに照度計
を使用しても同等の効果を得ることが可能である。Further, in the present invention, even if an illuminometer is used instead of the pyranometer, the same effect can be obtained.
【0015】[0015]
【発明の効果】本発明の路面加熱装置の加熱制御方法は
次の様な効果がある。 .屋外の明るさを「晴れ」と検知して予熱温度を大幅
に低下させても、降雪初期の融雪能力を確保することが
可能となり、予熱電力の省エネルギーが実現可能とな
る。 .外気温の高い昼間や晴れの時に予熱設定温度が低く
なり、温度調節器の出力がOFFとなる率が高まるの
で、実質的な通電率が低下し、予熱電力の無駄が少なく
なる。The heating control method of the road surface heating device of the present invention has the following effects. . Even if the outdoor brightness is detected as "fine" and the preheating temperature is significantly lowered, it is possible to secure the snow melting ability in the early stage of snowfall, and it is possible to realize energy saving of preheating power. . Since the preheat set temperature becomes low and the output of the temperature controller is turned off at a high rate during the daytime when the outside air temperature is high or when the weather is sunny, the substantial energization rate is reduced and the waste of preheating power is reduced.
【図1】本発明の路面加熱装置の加熱制御方法を採用し
た路面加熱装置の一例を示す説明図。FIG. 1 is an explanatory view showing an example of a road surface heating device adopting a heating control method for a road surface heating device of the present invention.
Claims (1)
の有無等のデータに基づいて路面を加熱して路面の融
雪、凍結防止等を行う路面加熱装置の加熱制御方法にお
いて、屋外の明るさをも加熱条件設定のデータとして使
用することを特徴とする路面加熱装置の加熱制御方法。1. A method for controlling the heating of a road surface heating device, which heats the road surface based on data such as pavement temperature, road surface moisture, outside air temperature, and the presence or absence of snowfall to prevent snow melting and freezing on the road surface. A heating control method for a road surface heating device, characterized in that the temperature is also used as data for setting heating conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19883093A JPH0734409A (en) | 1993-07-19 | 1993-07-19 | Heating control method for road surface heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19883093A JPH0734409A (en) | 1993-07-19 | 1993-07-19 | Heating control method for road surface heating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0734409A true JPH0734409A (en) | 1995-02-03 |
Family
ID=16397633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19883093A Pending JPH0734409A (en) | 1993-07-19 | 1993-07-19 | Heating control method for road surface heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0734409A (en) |
-
1993
- 1993-07-19 JP JP19883093A patent/JPH0734409A/en active Pending
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