JP2007277999A - Snow-melting controller - Google Patents
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- JP2007277999A JP2007277999A JP2006108118A JP2006108118A JP2007277999A JP 2007277999 A JP2007277999 A JP 2007277999A JP 2006108118 A JP2006108118 A JP 2006108118A JP 2006108118 A JP2006108118 A JP 2006108118A JP 2007277999 A JP2007277999 A JP 2007277999A
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本発明は、道路や屋根等の表面近傍に、発熱線や温水パイプ等の発熱体を埋設又は配置し、降雪を検知する降雪センサと、道路や屋根等の温度を検知する地温センサを設置した融雪設備において、道路や屋根等の雪氷を融解し除去するための制御装置に関するものである。 In the present invention, a heating element such as a heating wire or a hot water pipe is embedded or arranged near the surface of a road or a roof, and a snowfall sensor for detecting snowfall and a ground temperature sensor for detecting the temperature of a road or roof are installed. The present invention relates to a control device for melting and removing snow and ice such as roads and roofs in a snow melting facility.
一般的に融雪制御装置は、降雪センサにより降雪を検知すると地温センサにより道路や屋根等を融雪できる地温にして融雪制御を行っているが、融雪制御終了後に道路や屋根等に雪が残ることがあるため、道路や屋根等に雪がなく乾燥している場合でも道路や屋根等を加熱して無駄なエネルギーを消費する予熱制御を行っている。 In general, when a snowfall is detected by a snowfall sensor, the snowmelt control device performs snowmelt control with a ground temperature sensor that can melt the road or roof, etc., but snow may remain on the road or roof after the end of snowmelt control. Therefore, even when the roads and roofs are dry and free from snow, preheating control is performed to heat the roads and roofs and useless energy.
この無駄なエネルギーを消費する予熱制御を削減するため、特許文献１のように降雪強度により融雪設備の発熱量を制御して道路や屋根等に残雪が発生しないようにして予熱を削減する方式があるが、厳寒地域では、最大降雪量に対応した発熱容量の設備を設置すると大規模になり、費用面の問題等で普及していない。 In order to reduce the preheating control that consumes this useless energy, there is a method of reducing the preheating by controlling the heat generation amount of the snow melting facility by the snowfall intensity so that no residual snow is generated on the road or the roof as in Patent Document 1. However, in severely cold areas, installation of heat generation capacity equipment corresponding to the maximum amount of snowfall becomes large-scale and is not popular due to cost problems.
また厳寒地域向けとして特許文献２のように、発熱ユニットを優先区画Ａと準優先区画Ｂに分けて、降雪開始時に優先区画Ａのみに通電し、その後優先区画Ａと準優先区画Ｂとを直列に接続して通電して、優先区画Ａの発熱密度を高くして急速融雪する方式も、優先区画Ａと準優先区画Ｂとの設定条件のため、使用可能な場所が限られる点と、制御装置が高価になる課題があり普及していない。 Further, as in Patent Document 2 for the extremely cold region, the heat generating unit is divided into the priority zone A and the semi-priority zone B, and only the priority zone A is energized at the start of snowfall, and then the priority zone A and the semi-priority zone B are connected in series. The method of connecting and powering up and rapidly melting snow by increasing the heat generation density of the priority section A is limited because of the setting conditions of the priority section A and the semi-priority section B, and the useable place is limited. There is a problem that the device is expensive, and it is not popular.
一般家庭向け用として使用されている固定融雪遅延タイマ方式の融雪制御装置は、予め降雪終了後の融雪遅延時間を設定し、降雪終了後に遅延融雪制御して残雪が残らないようにする簡易的な方法であるが、道路や屋根等の地温が低いとき融雪遅延時間を長く設定し、逆に地温が高いとき融雪遅延時間を短く設定する調整が必要で、厳冬期もしくは暖冬期に合わせて融雪遅延時間を適時に設定しないと、融雪制御終了後に道路や屋根等に残雪が発生する課題や、逆に融雪が早く終了して雪が無くても無駄な融雪制御を行う課題があるため、予熱制御を併用している。 The fixed snow-melting delay timer type snow melting control device used for home use is a simple method that sets the snow melting delay time after the end of snowfall in advance and controls the delayed snow melting after the end of snowfall so that no residual snow remains. However, it is necessary to adjust the snow melting delay time to be longer when the ground temperature of roads and roofs is low, and to set the snow melting delay time shorter when the ground temperature is high. If the time is not set in a timely manner, there will be problems such as remaining snow on roads and roofs after the end of snowmelt control, and conversely, there will be a problem of performing wasteful snowmelt control even if snowmelt ends early and there is no snow. Used together.
市販の降雪強度を検出する光学式降雪センサを使用し、降雪強度を単位時間毎の降雪量に対比させた数値を加算しながら融雪遅延時間を自動的に設定する降雪量融雪遅延タイマ方式の融雪制御装置は、固定融雪遅延タイマ方式と同じように、夜に昼と同じ降雪があった場合や融雪制御終了後の地温が高いときに次ぎの降雪が有った場合、融雪遅延時間を自動的に設定することができないので、残雪が発生する課題や無駄な融雪制御を行う課題があり、予熱制御を併用している。 Using a commercially available optical snowfall sensor that detects the snowfall intensity, the snowmelt delay time is automatically set by adding a value that compares the snowfall intensity with the amount of snowfall per unit time. As with the fixed snow-melting delay timer method, the controller automatically adjusts the snow-melting delay time when there is the same snowfall as at noon at night or when the next snowfall occurs when the ground temperature is high after the end of snowmelt control. Therefore, there is a problem that residual snow occurs and a problem of performing useless snow melting control, and preheating control is used in combination.
また、降雪量融雪遅延タイマ方式の融雪制御装置は、使用している降雪センサの降雪中の時間と、発熱体を埋設又は配置した道路や屋根等の実融雪時間との相関の高い、例えば温水式コンクリート施工のような融雪設備の場合、残雪が発生しないので予熱制御を削減して融雪制御できる。 In addition, the snowmelt control device of the snowfall delay timer type of snowfall has a high correlation between the snowfall time of the snowfall sensor being used and the actual snowmelt time of the road or roof where the heating element is buried or arranged, for example, hot water In the case of snow melting equipment such as type concrete construction, there is no residual snow, so it is possible to control snow melting by reducing preheating control.
しかし、降雪量融雪遅延タイマ方式の融雪制御装置は、使用している降雪センサの降雪中の時間と、発熱体を埋設又は配置した道路や屋根等の実融雪時間との相関の低い、例えば電気式インターロッキング施工のような融雪設備の場合、融雪設備固有の地温の特性に対応した融雪遅延時間を自動的に設定できないので残雪が発生する課題があり、予熱制御を併用している。 However, the snowmelt control device of the snowfall delay timer type has a low correlation between the snowfall time of the snowfall sensor being used and the actual snowmelt time of the road or roof where the heating element is buried or arranged, for example, electric In the case of a snowmelt facility such as a type interlocking construction, a snowmelt delay time corresponding to the characteristics of the ground temperature unique to the snowmelt facility cannot be automatically set, so there is a problem that residual snow is generated, and preheating control is used in combination.
一般的に大規模設備で使用されている、道路や屋根等に水分の有無を検知する水分センサを設置して、降雪センサと、地温センサと、外気温センサを具備して、発熱体の融雪制御，凍結防止制御，予熱制御を行う融雪制御装置は、凍結防止制御が無い方式と比較して道路や屋根等が乾燥している予熱制御の地温設定を低くできる利点があるが、予熱制御の地温設定を低くすると融雪制御終了後の残雪が発生しやすいため、予熱制御による無駄なエネルギーの削減の課題も残り、また凍結防止制御の地温設定を高くして融雪制御終了後の残雪処理をしているため、凍結防止制御においても無駄なエネルギーを消費している。 Installed a moisture sensor that detects the presence or absence of moisture on roads and roofs, which are generally used in large-scale facilities, and equipped with a snowfall sensor, a ground temperature sensor, and an outside air temperature sensor, Snowmelt control devices that perform control, anti-freezing control, and preheating control have the advantage of lowering the ground temperature setting of preheating control when roads and roofs are dry compared to methods without freezing prevention control. Lowering the ground temperature setting tends to cause residual snow after the end of snow melting control, so there is still a problem of reducing wasteful energy by preheating control. Therefore, useless energy is consumed also in the freeze prevention control.
このため特許文献３のように、水分センサと、降雪センサと、地温センサと、外気温センサを具備して、融雪制御，凍結防止制御，予熱制御の地温制御を行う融雪制御装置に、降雪予測情報の降雪確率を利用して降雪確率が低い時に予熱制御の地温を低く制御し、降雪確率が高くなると予熱制御の地温を高く制御する方法は、降雪予測情報を入手するための中央管理装置及び情報端末装置が必要で、大変高価なシステムとなる。 For this reason, as disclosed in Patent Document 3, the snow melting prediction apparatus includes a moisture sensor, a snowfall sensor, a ground temperature sensor, and an outside air temperature sensor, and performs snow melting control, antifreezing control, and preheating control. A method of controlling the preheating control ground temperature low when the snowfall probability is low using the snowfall probability of the information, and controlling the preheating control ground temperature high when the snowfall probability is high, a central management device for obtaining snowfall prediction information and An information terminal device is required, resulting in a very expensive system.
また、特許文献３の制御方法は、降雪確率が低い時に降雪があった場合、融雪制御終了後に残雪が発生する課題があり、凍結防止制御の地温設定を高くして残雪処理をしているため、凍結防止制御においても無駄なエネルギーを消費している。
本発明は、このような実情に鑑みてなされたもので、融雪遅延時間を自動的に設定できる方法により、予熱制御を削減し、低コストで省エネルギーが図れる融雪装置を提供することを、その課題とする。 The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a snow melting device that can reduce preheating control and save energy at a low cost by a method capable of automatically setting a snow melting delay time. And
請求項１の発明の融雪制御装置は、道路や屋根等の表面近傍に、発熱線や温水パイプ等の発熱体を埋設又は配置し、降雪を検知する降雪センサと、道路や屋根等の温度を検知する地温センサを設置した融雪設備において、降雪を検知して発熱体を加熱する融雪制御の開始から地温が予め設定した融雪開始温度になるまでの時間を計測する融雪遅れ時間検出器を具備し、且つ、降雪終了時に融雪遅れ時間検出器の融雪遅れ時間をタイマに加算されて、降雪終了後から融雪遅れ時間を減算する遅延タイマを具備し、降雪中と遅延タイマの値がゼロになるまでの期間を融雪制御として地温制御することを特徴としたものである。 The snow melting control device according to the first aspect of the present invention provides a snowfall sensor for detecting a snowfall by embedding or arranging a heating element such as a heating wire or a hot water pipe in the vicinity of a surface of a road or a roof, and a temperature of a road or a roof. A snowmelt facility equipped with a ground temperature sensor to detect, equipped with a snowmelt delay time detector that measures the time from the start of snowmelt control to detect snowfall and heat the heating element until the ground temperature reaches a preset snowmelt start temperature. In addition, there is a delay timer that adds the snow melting delay time of the snow melting delay time detector to the timer at the end of snowfall and subtracts the snow melting delay time after the snowfall ends, until the value of the delay timer during snowing and the delay timer becomes zero This is characterized in that the soil temperature is controlled as snow melting control during this period.
請求項２の発明の融雪制御装置は、降雪開始時に予め設定された値を固定タイマにセットし、降雪終了後に固定タイマを減算し、固定タイマの値がゼロになる減算終了まで固定遅延信号を出力する固定遅延タイマと、固定遅延タイマの減算終了時に融雪遅れ時間検出器の融雪遅れ時間をタイマに加算されて、固定遅延タイマの減算終了時から融雪遅れ時間を減算する融雪遅れタイマとから構成される請求項１の遅延タイマと、且つ、固定遅延タイマからの固定遅延信号と降雪センサからの降雪信号とを降雪中として入力する請求項１の融雪遅れ時間検出器から構成され、降雪中と、固定遅延タイマと融雪遅れタイマで構成される遅延タイマの値がゼロになるまでの期間を融雪制御として地温制御することを特徴としたものである。 The snow melting control device of the invention of claim 2 sets a preset value at the start of snowfall in a fixed timer, subtracts the fixed timer after the end of snowfall, and outputs a fixed delay signal until the end of subtraction when the value of the fixed timer becomes zero. Consists of an output fixed delay timer and a snowmelt delay timer that adds the snowmelt delay time of the snowmelt delay time detector to the timer at the end of subtraction of the fixed delay timer and subtracts the snowmelt delay time from the end of the subtraction of the fixed delay timer And a fixed delay signal from the fixed delay timer and a snowfall signal from the snowfall sensor as snowfall inputs. The ground temperature control is performed as the snow melting control for the period until the value of the delay timer composed of the fixed delay timer and the snow melting delay timer becomes zero.
請求項３の発明の融雪制御装置は、請求項１の降雪センサと、地温センサを備えた融雪設備に、道路や屋根等の水分の有無を検知する水分センサと、外気温センサを具備して、融雪制御，凍結防止制御，予熱制御を行うものである。 According to a third aspect of the present invention, there is provided a snow melting control device comprising: the snowfall sensor according to the first aspect; a snow melting facility including a ground temperature sensor; a moisture sensor for detecting the presence or absence of moisture on a road or a roof; and an outside air temperature sensor. Snow melting control, anti-freezing control, and preheating control are performed.
請求項４の発明の融雪制御装置は、請求項１の降雪センサと、地温センサを備えた融雪設備に、道路や屋根等の水分の有無を検知する水分センサと、外気温センサと、降雪予測情報を入力する情報端末装置を具備して、降雪予測情報により融雪制御，凍結防止制御，予熱制御の温度制御を行うものである。 According to a fourth aspect of the present invention, there is provided a snow melting control device according to the first aspect of the present invention, the moisture sensor for detecting the presence or absence of water on a road or a roof, etc. in the snow melting facility provided with the ground temperature sensor, an outside temperature sensor, and snow prediction. An information terminal device for inputting information is provided, and temperature control for snow melting control, anti-freezing control, and preheating control is performed based on snow prediction information.
請求項１の発明によれば、融雪制御の開始から地温が予め設定した融雪開始温度になるまでの時間を計測する融雪遅れ時間検出器を具備し、且つ、降雪終了時に融雪遅れ時間検出器の融雪遅れ時間をタイマに加算されて、降雪終了後から融雪遅れ時間を減算する遅延タイマを具備し、降雪中と遅延タイマの値がゼロになるまでの期間を融雪制御として地温制御する融雪制御装置により、暖冬期もしくは厳冬期に合わせて融雪遅延時間を設定しなくても、融雪制御終了後に道路や屋根等に残雪が発生することもなく、逆に融雪が早く終了して融雪制御をする無駄もなく予熱制御を削減でき、低コストで省エネルギーが図れる。 According to the first aspect of the present invention, there is provided the snow melting delay time detector for measuring the time from the start of the snow melting control until the ground temperature reaches the preset snow melting start temperature, and at the end of the snowfall, A snow melting control device that includes a delay timer that adds the snow melting delay time to the timer and subtracts the snow melting delay time after the end of snowfall, and controls the ground temperature as snow melting control during the snowfall and until the delay timer value becomes zero Therefore, there is no residual snow on the roads and roofs after the end of snowmelt control, even if the snowmelt delay time is not set according to the warm or severe winter season. Therefore, preheating control can be reduced and energy can be saved at low cost.
また請求項１の発明によれば、降雪中と遅延タイマの値がゼロになるまでの期間を融雪制御として地温制御する融雪制御装置により、夜に昼と同じ降雪があった場合や融雪制御の後の地温が高いときに次ぎの降雪が有った場合、融雪遅延時間を自動的に設定できるので、残雪や融雪が早く終了して無駄な融雪制御が発生することもなく予熱制御を削減でき、低コストで省エネルギーが図れる。 According to the first aspect of the present invention, the snow melting control device that controls the ground temperature during the snowfall and the time until the value of the delay timer becomes zero as the snow melting control can be used when the snowfall is the same as the daytime at night or If the next snowfall occurs when the ground temperature is high afterwards, the snow melting delay time can be set automatically, so that it is possible to reduce preheating control without causing unnecessary snow melting control due to the end of remaining snow or melting. Energy saving can be achieved at low cost.
請求項２の発明によれば、降雪開始時に予め設定された値を固定タイマにセットし、降雪終了後に固定タイマを減算し、固定タイマの値がゼロになる減算終了まで固定遅延信号を出力する固定遅延タイマと、固定遅延タイマの減算終了時に融雪遅れ時間検出器の融雪遅れ時間をタイマに加算されて、固定遅延タイマの減算終了時から融雪遅れ時間を減算する融雪遅れタイマとから構成される請求項１の遅延タイマと、且つ、固定遅延タイマからの固定遅延信号と降雪センサからの降雪信号とを降雪中として入力する請求項１の融雪遅れ時間検出器から構成され、降雪中と、固定遅延タイマと融雪遅れタイマで構成される遅延タイマの値がゼロになるまでの期間を融雪制御として地温制御する融雪制御装置により、降雪センサの降雪中の時間と、発熱体を埋設又は配置した道路や屋根等の実融雪時間との相関の低い融雪設備の場合、融雪遅延時間を自動的に設定できるので、残雪が発生することもなく予熱制御を削減でき、低コストで省エネルギーが図れる。 According to the second aspect of the present invention, a preset value is set in the fixed timer at the start of snowfall, the fixed timer is subtracted after the end of snowfall, and a fixed delay signal is output until the end of subtraction when the value of the fixed timer becomes zero. Consists of a fixed delay timer and a snow melting delay timer that adds the snow melting delay time of the snow melting delay time detector to the timer at the end of subtraction of the fixed delay timer and subtracts the snow melting delay time from the end of the subtraction of the fixed delay timer The delay timer according to claim 1, and comprising the snow melting delay time detector according to claim 1, wherein the fixed delay signal from the fixed delay timer and the snowfall signal from the snowfall sensor are input as falling snow. The time during the snowfall of the snowfall sensor is determined by the snowmelt control device that controls the ground temperature as the snowmelt control until the delay timer value consisting of the delay timer and the snowmelt delay timer becomes zero. In the case of snow melting equipment that has a low correlation with the actual snow melting time such as roads and roofs with embedded or arranged heating elements, the snow melting delay time can be set automatically, so preheating control can be reduced without causing residual snow. Energy saving can be achieved by cost.
請求項３の発明によれば請求項１の降雪センサと、地温センサを備えた融雪設備に、道路や屋根等の水分の有無を検知する水分センサと、外気温センサを具備して、融雪制御，凍結防止制御，予熱制御を行う融雪制御装置により、予熱制御の地温設定を低くしても融雪制御終了後の残雪が発生しないため、予熱制御による無駄なエネルギーの削減が可能となり、また残雪を凍結防止制御により融雪する必要もなくなり、凍結防止制御による無駄なエネルギーを削減できる。 According to a third aspect of the present invention, the snow melting facility according to the first aspect of the present invention is equipped with a moisture sensor for detecting the presence or absence of moisture such as roads and roofs, and an outside air temperature sensor. , Anti-freezing control and preheating control, the snow melting control device does not generate residual snow after the end of snow melting control even if the ground temperature setting of the preheating control is lowered, so it is possible to reduce wasted energy by preheating control. It is no longer necessary to melt snow by freeze prevention control, and wasteful energy can be reduced by freeze prevention control.
請求項４の発明によれば、請求項１の降雪センサと、地温センサを備えた融雪設備に、道路や屋根等の水分の有無を検知する水分センサと、外気温センサと、降雪予測情報を入力する情報端末装置を具備して、降雪予測情報により融雪制御，凍結防止制御，予熱制御の温度制御を行う融雪制御装置により、降雪確率が低い時に降雪があっても融雪制御終了後に残雪が発生しないため、残雪を凍結防止制御により融雪する必要がなくなり、凍結防止制御による無駄なエネルギーを削減できる。
According to the invention of claim 4, the snowfall sensor according to claim 1 and the snow melting facility provided with the ground temperature sensor, the moisture sensor for detecting the presence or absence of moisture such as roads and roofs, the outside temperature sensor, and snowfall prediction information. Snow melting control device that has an information terminal device to input and controls the temperature of snow melting control, anti-freezing control, and preheating control based on snow prediction information. Even if there is snow when the snow probability is low, residual snow is generated after snow melting control ends Therefore, it is not necessary to melt the remaining snow by freezing prevention control, and wasteful energy can be reduced by freezing prevention control.
以下本発明を実施するための最良の形態を実施例に基づいて詳細に説明する。なお、各図は発明を理解できる程度に各構成部分の形状、大きさおよび配置関係を概略的に示してあるに過ぎず、したがってこの発明は図示例に限定するものではない。 The best mode for carrying out the present invention will be described in detail below based on examples. Each figure only schematically shows the shape, size, and arrangement relationship of each component so that the invention can be understood. Therefore, the present invention is not limited to the illustrated examples.
第１発明の融雪制御装置の一実施例としての図１は、降雪センサ１と、地温センサ２と、ANDゲート４と融雪開始温度を設定している融雪遅れ温度設定器５と地温判定器６と融雪遅れカウンタ７とから構成される融雪遅れ時間検出器３と、遅延タイマ８、制御選択器１１と、発熱体温度制御器１２から構成される融雪制御装置であり、以下に機能を説明する。 FIG. 1 as an embodiment of the snow melting control device according to the first aspect of the present invention includes a snowfall sensor 1, a ground temperature sensor 2, an AND gate 4, a snow melting delay temperature setting device 5 for setting a snow melting start temperature, and a ground temperature determination device 6. And a snow melting delay time detector 3, a delay timer 8, a control selector 11, and a heating element temperature controller 12, and its function will be described below. .
融雪遅れ時間検出器３は、地温センサ２からの地温が融雪遅れ温度設定器５の設定温度未満で地温判定器６の出力が「１」で、且つ降雪センサ１が降雪中「１」になってANDゲート４の出力が「１」となると、融雪遅れカウンタ７のカウンタ値（ＴＣ）をゼロからカウントアップし、地温が融雪遅れ温度設定器５の設定温度以上になると地温判定器６の出力が「０」となりカウントを停止し、停止後のカウンタ値（ＴＣ）を融雪遅れ時間として検出する。 The snow melting delay time detector 3 has the ground temperature from the ground temperature sensor 2 lower than the set temperature of the snow melting delay temperature setter 5, the output of the ground temperature determination unit 6 is “1”, and the snowfall sensor 1 becomes “1” during snowfall. When the output of the AND gate 4 becomes “1”, the counter value (TC) of the snow melting delay counter 7 is counted up from zero, and when the ground temperature becomes equal to or higher than the set temperature of the snow melting delay temperature setter 5, the output of the ground temperature determiner 6 is output. Becomes “0”, the count is stopped, and the counter value (TC) after the stop is detected as the snow melting delay time.
遅延タイマ８は、降雪終了時に融雪遅れカウンタ７のカウンタ値（ＴＣ）を自分の遅延タイマ８のタイマ値（ＦＴＤ）に加算し、降雪が終了するとタイマ値（ＦＴＤ）を減算して、タイマ値（ＦＴＤ）＞０のとき「１」を出力する。 The delay timer 8 adds the counter value (TC) of the snow melting delay counter 7 to the timer value (FTD) of its own delay timer 8 at the end of snowfall, and subtracts the timer value (FTD) when the snowfall ends. When (FTD)> 0, “1” is output.
制御選択器１１は、降雪中または遅延タイマ８が減算中でタイマ値（ＦＴＤ）＞０のとき融雪制御信号「１」を出力し、降雪無しで且つ遅延タイマ８のタイマ値（ＦＴＤ）＝０のとき融雪制御信号無し「０」を出力する融雪ＯＲゲート１１Ａと、融雪制御信号を受けて融雪温度設定器９と予熱温度設定器１０からの信号を選択する融雪ＡＮＤゲート１１Ｂ，反転入力付きＡＮＤゲート１１Ｃ，選択ＯＲゲート１１Ｄからなる選択回路により構成される。 The control selector 11 outputs a snow melting control signal “1” when it is snowing or when the delay timer 8 is subtracting and the timer value (FTD)> 0, and there is no snow and the timer value (FTD) of the delay timer 8 is 0. At this time, a snow melting OR gate 11A that outputs "0" without a snow melting control signal, a snow melting AND gate 11B that receives a snow melting control signal and selects signals from the snow melting temperature setting device 9 and the preheating temperature setting device 10, and an AND with an inverting input It is constituted by a selection circuit including a gate 11C and a selection OR gate 11D.
制御選択器１１の選択回路は、融雪制御信号「１」を受けた場合、融雪ＡＮＤゲート１１Ｂが選択されて融雪温度設定器９の設定温度が選択ＯＲゲート１１Ｄを経由して発熱体温度制御器１２へ出力し、融雪制御信号無し「０」を受けた場合、反転入力付きＡＮＤゲート１１Ｃが選択されて予熱温度設定器１０の設定温度が選択ＯＲゲート１１Ｄを経由して発熱体温度制御器１２へ出力する。 When the selection circuit of the control selector 11 receives the snow melting control signal “1”, the snow melting AND gate 11B is selected, and the set temperature of the snow melting temperature setter 9 is set via the selection OR gate 11D to the heating element temperature controller. 12, when the snow melting control signal “0” is received, the AND gate 11 C with an inverting input is selected, and the set temperature of the preheating temperature setting device 10 is set via the selection OR gate 11 D to the heating element temperature controller 12. Output to.
発熱体温度制御器１２は、制御選択器１１からの融雪温度設定器９の設定温度になるように地温を融雪制御、又は予熱温度設定器１０の設定温度になるように地温を予熱制御する制御器である。 The heating element temperature controller 12 controls the melting of the ground temperature so as to become the set temperature of the snow melting temperature setting device 9 from the control selector 11 or the preheating control of the ground temperature so as to become the set temperature of the preheating temperature setting device 10. It is a vessel.
図１で予熱温度設定器１０の設定を−５０℃にした場合、通常の使用で地温が−５０℃になることが無いので、予熱制御で発熱体の加熱制御を行うことが無く、融雪制御のみを行う融雪制御装置として使用可能である。 In FIG. 1, when the setting of the preheating temperature setting device 10 is set to −50 ° C., since the ground temperature does not become −50 ° C. under normal use, the heating control of the heating element is not performed by the preheating control, and the snow melting control is performed. It can be used as a snow melting control device that performs only the above.
動作事例の図２−１(a)は、地温が−７℃で降雪があった場合の動作事例で、降雪開始Ｓｓにより発熱体がＯＮとなり、降雪センサ１からの出力が「１」で、且つ地温が融雪遅れ温度の１０℃未満のため地温判定器６からの出力が「１」の間、融雪遅れカウンタ７はカウンタ値（ＴＣ）をカウントアップし、降雪センサ１からの出力が「１」で、且つ地温が融雪遅れ温度以上となり地温判定器６からの出力が「０」となると、融雪遅れカウンタ７はカウントアップを停止し、停止したカウンタ値（ＴＣ）が融雪遅れ時間Ｓｄとなる。 Fig. 2-1 (a) of the operation example is an operation example when the ground temperature is -7 ° C and there is snowfall. The heating element is turned on by the snowfall start Ss, and the output from the snowfall sensor 1 is "1". Also, since the ground temperature is less than 10 ° C. of the snow melting delay temperature, while the output from the ground temperature determination unit 6 is “1”, the snow melting delay counter 7 counts up the counter value (TC), and the output from the snowfall sensor 1 is “1”. When the ground temperature is equal to or higher than the snow melting delay temperature and the output from the ground temperature determination unit 6 becomes “0”, the snow melting delay counter 7 stops counting up, and the stopped counter value (TC) becomes the snow melting delay time Sd. .
降雪終了ＳE時に融雪遅れカウンタ７のカウンタ値（ＴＣ）を加算した遅延タイマ８は、降雪終了ＳＥ後からタイマ値（ＦＴＤ）の減算を開始し、降雪中とタイマ値（ＦＴＤ）の減算中の期間、制御選択器１１と発熱体温度制御器１２により融雪制御期間として発熱体をＯＮし、タイマ値（ＦＴＤ）の減算時間が融雪遅延時間Ｙｄとなる。 The delay timer 8, which has added the counter value (TC) of the snow melting delay counter 7 at the end of snowfall SE, starts subtraction of the timer value (FTD) after the end of snowfall SE, and during subtraction of the timer value (FTD) During the period, the control selector 11 and the heating element temperature controller 12 turn on the heating element as the snow melting control period, and the subtraction time of the timer value (FTD) becomes the snow melting delay time Yd.
次ぎに動作事例の図２−１(ｂ)は、図２−１(a)と同じ降雪で、同じ融雪設備仕様で地温が±０℃で降雪があった場合の動作事例で、地温が−７℃の図２(a)と比較して、地温が融雪遅れ温度設定器５の温度１０℃以上になるまでの融雪遅れ時間Ｓｄが短縮し、且つ融雪遅延時間Ｙｄも短縮されて、融雪終了後の無駄な融雪制御の時間が短縮される。 Next, Fig. 2-1 (b), which is an operation example, shows an operation example when the snowfall is the same as in Fig. 2-1 (a), the same snow melting equipment specifications, and the ground temperature is ± 0 ° C. Compared to FIG. 2 (a) at 7 ° C., the snow melting delay time Sd until the ground temperature becomes 10 ° C. or higher of the snow melting delay temperature setting device 5 is shortened, and the snow melting delay time Yd is also shortened. The time for the subsequent useless snow melting control is shortened.
動作事例の図２−２(c)は、最初の降雪中Ｓ１の融雪制御の後の地温が高いとき、次ぎに同じ降雪中Ｓ２が有った場合の動作事例で、道路や屋根等の蓄熱量が十分ある降雪開始Ｓｓ２の地温が融雪遅れ温度１０℃以上になる融雪遅れ時間Ｓｄ２が最初の降雪中Ｓ１の融雪遅れ時間Ｓｄ１と比較して短縮し、降雪中Ｓ２の融雪遅延時間Ｙｄ２が短縮される。 Fig. 2-2 (c) shows an example of operation when the ground temperature after snow melting control of S1 during the first snowfall is high, and then S2 during the same snowfall. The snowmelt delay time Sd2 at which the ground temperature at the snowfall start Ss2 having a sufficient amount becomes 10 ° C. or more is shortened compared to the snowmelt delay time Sd1 of the first snowfall S1, and the snowmelt delay time Yd2 of the snowfall S2 is shortened. Is done.
次ぎに動作事例の図２−２(ｄ)は、図２−２(c)のような２回降雪がある場合の事例で、最初の降雪中Ｓ１で地温が融雪遅れ温度にならないで降雪終了ＳＥ１となり、融雪遅延時間Ｙｄ１中に２回目の降雪があって降雪開始ＳＳ２となった場合、遅延タイマ８が２回目の降雪終了ＳＥ２時に２回目の降雪で地温が融雪遅れ温度以上になるまでの融雪遅れカウンタ７のカウンタ値（ＴＣ）を、１回目の融雪遅延時間Ｙｄ１で減算したタイマ値（ＦＴＤ）の残値へ加算することで、２回目の降雪による融雪遅れ時間Ｓｄ２を延長した融雪遅延時間Ｙｄ２となる。 Next, Fig. 2-2 (d), which is an operation example, is an example of the case where there are two snowfalls as shown in Fig. 2-2 (c), and the snowfall ends without the ground temperature becoming the melting delay time in the first snowfall S1. S E 1, and the case where a snow start S S2 if there is the second snow during snow melting delay time YD1, delay timer 8 second snowfall ends S E 2 at the second ground temperature in snowfall snow melting delay temperature By adding the counter value (TC) of the snow melting delay counter 7 up to the above to the remaining value of the timer value (FTD) subtracted by the first snow melting delay time Yd1, the snow melting delay time Sd2 due to the second snowfall The snow melting delay time Yd2 is extended.
このように、本第１発明の降雪開始時の地温の立ち上がり特性を融雪遅れ時間Ｓｄとして計測することにより、日中や夜間の日射条件、暖冬期もしくは厳冬期による外気温や地温の差、または１日に降雪が複数回あった場合に対応した融雪遅延時間Ｙｄを自動設定できる。 Thus, by measuring the rise characteristic of the ground temperature at the start of snowfall according to the first aspect of the invention as the snow melting delay time Sd, the difference in the outside air temperature or the ground temperature due to the daytime or nighttime solar radiation conditions, the warm winter season or the severe winter season, or It is possible to automatically set the snow melting delay time Yd corresponding to the case where there are multiple snowfalls in one day.
第２発明の融雪制御装置の一実施例としての図３は、ゼロから３時間を設定できる遅延時間設定器８Ａと固定遅延タイマ８Ｂと融雪遅れタイマ８Ｃと遅延ORゲート8Dから構成される遅延タイマ８と、固定遅延タイマ８Ｂからの固定遅延信号と降雪センサ１からの降雪中信号を融雪遅れ時間検出器３へOR出力する降雪ORゲート1Aから構成され、他は第１発明の図１と同じ構成の融雪制御装置である。 FIG. 3 as an embodiment of the snow melting control device of the second invention is a delay timer comprising a delay time setting unit 8A capable of setting three hours from zero, a fixed delay timer 8B, a snow melting delay timer 8C, and a delay OR gate 8D. 8 and a snowfall OR gate 1A for OR-outputting a fixed delay signal from the fixed delay timer 8B and a snowfall signal from the snowfall sensor 1 to the snow melting delay time detector 3, and the other parts are the same as in FIG. 1 of the first invention. It is a snow melting control apparatus of composition.
降雪が始まると遅延時間設定器８Ａの設定値が固定遅延タイマ８Ｂのタイマ値（ＴＤ）へセットされ、降雪が終了するとタイマ値（ＴＤ）が減算され、タイマ値（ＴＤ）がゼロになる減算終了まで、固定遅延信号を出力する固定遅延タイマ８Ｂと、固定遅延タイマ８Ｂが減算終了時に融雪遅れカウンタ７のカウンタ値（ＴＣ）を融雪遅れタイマ８Ｃのタイマ値（ＦＴＤｔ）へ加算し、加算後、タイマ値（ＦＴＤｔ）が減算され、タイマ値（ＦＴＤｔ）がゼロになる減算終了までの融雪遅れ信号を出力する融雪遅れタイマ８Ｃからなる遅延タイマ８は、降雪終了から固定遅延信号と融雪遅れ信号を出力する。 When the snowfall starts, the set value of the delay time setting unit 8A is set to the timer value (TD) of the fixed delay timer 8B. When the snowfall ends, the timer value (TD) is subtracted, and the timer value (TD) becomes zero. Until the end, the fixed delay timer 8B that outputs a fixed delay signal, and when the fixed delay timer 8B completes subtraction, the counter value (TC) of the snow melting delay counter 7 is added to the timer value (FTDt) of the snow melting delay timer 8C, and after the addition The delay timer 8 composed of a snow melting delay timer 8C that outputs a snow melting delay signal until the timer value (FTDt) is subtracted until the timer value (FTDt) is zero is output from the snow melting delay timer 8C. Is output.
このように第２発明は、降雪センサ１の降雪中の時間と、発熱体を埋設又は配置した道路や屋根等の実融雪時間との相関の高い融雪設備の場合、例として遅延時間設定器８Ａの設定値をゼロに設定すると、降雪センサ１の降雪中の時間に対比された融雪遅延時間を自動的に設定できる。 As described above, the second aspect of the invention provides, for example, a delay time setting unit 8A in the case of a snow melting facility having a high correlation between the time during snowfall of the snowfall sensor 1 and the actual snowmelt time such as a road or a roof in which a heating element is embedded or arranged. Is set to zero, it is possible to automatically set the snow melting delay time compared with the time during the snowfall of the snowfall sensor 1.
また、降雪センサ１の降雪中の時間と、発熱体を埋設又は配置した道路や屋根等の実融雪時間との相関の低い電気式インターロッキング施工のような融雪設備の場合、例えば遅延時間設定器８Ａの設定値を３時間に設定し融雪遅れ時間を計測することで、融雪設備固有の地温の特性に対応した融雪遅延時間を自動的に設定できる。 Further, in the case of snow melting equipment such as electric interlocking construction in which the time during snowfall of the snowfall sensor 1 and the actual snowmelt time of a road or roof where a heating element is buried or arranged is low, for example, a delay time setting device By setting the set value of 8A to 3 hours and measuring the snow melting delay time, it is possible to automatically set the snow melting delay time corresponding to the ground temperature characteristic unique to the snow melting equipment.
第３発明の融雪制御装置の一実施例としての図４は、融雪遅れ温度設定器５と地温判定器６と融雪遅れカウンタ７とANDゲート４からなる融雪遅れ時間検出器３と、遅延タイマ８を具備し、降雪センサ１と、地温センサ２と、道路や屋根等の水分の有無を検知する水分センサ１４と、外気温センサ１３とを制御要素判別器１８に接続して、融雪制御，凍結防止制御，予熱制御を行う融雪制御装置である。 FIG. 4 as an embodiment of the snow melting control device of the third invention shows a snow melting delay time detector 3 comprising a snow melting delay temperature setter 5, a ground temperature determination unit 6, a snow melting delay counter 7 and an AND gate 4, and a delay timer 8. The snowfall sensor 1, the ground temperature sensor 2, the moisture sensor 14 for detecting the presence or absence of moisture such as roads and roofs, and the outside air temperature sensor 13 are connected to the control element discriminator 18 to control snow melting and freezing. It is a snowmelt control device that performs prevention control and preheating control.
降雪センサ１の降雪中と遅延タイマ８からの融雪遅延時間中の信号とを融雪ＯＲゲート１１Ａから入力された制御要素判別器１８は、地温センサ２、外気温センサ１３、水分センサ１４からの信号により、制御要素判別器１８内の融雪設定器１５と凍結防止設定器１６と予熱設定器１７により発熱体１９を融雪制御、凍結防止制御、予熱制御を行う機能を有する判別器である。 The control element discriminator 18 that has received a signal from the snow melting OR gate 11 </ b> A during the snowfall of the snowfall sensor 1 and the signal during the snowmelt delay time from the delay timer 8 is a signal from the ground temperature sensor 2, the outside air temperature sensor 13, and the moisture sensor 14. Thus, the control element discriminator 18 is a discriminator having a function of performing snow melting control, anti-freezing control, and preheating control of the heating element 19 by the snow melting setting unit 15, the anti-freezing setting unit 16, and the preheating setting unit 17.
降雪が始まると降雪センサ１からの降雪中「１」と、地温が融雪遅れ温度設定器５の設定温度以上になるまで地温判定器６からの出力「１」により、融雪遅れカウンタ７は、カウンタ値（ＴＣ）をカウントアップし、地温が融雪遅れ温度以上になると地温判定器６からの出力が「０」になりカウントアップを停止し、カウンタ値（ＴＣ）が融雪遅れ時間となる。 When snowfall begins, the snowmelt delay counter 7 is set to “1” during the snowfall from the snowfall sensor 1 and the output “1” from the ground temperature determination device 6 until the ground temperature becomes equal to or higher than the set temperature of the snowmelt delay temperature setter 5. When the value (TC) is counted up and the ground temperature becomes equal to or higher than the snow melting delay temperature, the output from the ground temperature determination unit 6 becomes “0” and stops counting, and the counter value (TC) becomes the snow melting delay time.
降雪終了時に地温が融雪遅れ温度以上になるまでの時間を記録している融雪遅れカウンタ７のカウンタ値（ＴＣ）を加算した遅延タイマ８は、降雪終了後からタイマ値（ＦＴＤ）の減算を開始し、融雪ＯＲゲート１１Ａにより降雪中とタイマ値（ＦＴＤ）の減算中の期間を、降雪中と融雪遅延時間からなる融雪制御期間として制御要素判別器１８へ入力され、融雪制御を行う。 The delay timer 8 that adds the counter value (TC) of the snow melting delay counter 7 that records the time until the ground temperature becomes equal to or higher than the snow melting delay temperature at the end of snowfall starts subtraction of the timer value (FTD) after the end of snowfall Then, the period during snowing and the subtraction of the timer value (FTD) by the snow melting OR gate 11A is input to the control element discriminator 18 as the snow melting control period consisting of the snowing and the snow melting delay time, and the snow melting control is performed.
降雪終了時に融雪遅れ時間検出器３の融雪遅れ時間を遅延タイマ８に加算して融雪遅延時間として融雪制御ができることにより、水分センサ１４と、降雪センサ１と、地温センサ２と、外気温センサ１３を具備し、発熱体１９の融雪制御，凍結防止制御，予熱制御を行う融雪制御装置は、予熱制御の地温設定を低くしても融雪制御終了後の残雪が発生しないため、予熱制御による無駄なエネルギーの削減が可能となり、また融雪制御終了後の残雪を凍結防止制御により融雪できるようにする必要もなくなり、凍結防止制御による無駄なエネルギーを削減できる。 By adding the snow melting delay time of the snow melting delay time detector 3 to the delay timer 8 at the end of the snowfall and performing snow melting control as the snow melting delay time, the moisture sensor 14, the snowfall sensor 1, the ground temperature sensor 2, and the outside temperature sensor 13 can be controlled. The snow melting control device that performs snow melting control, anti-freezing control, and preheating control of the heating element 19 does not generate residual snow after the end of the snow melting control even if the ground temperature setting of the preheating control is lowered. Energy can be reduced, and it is not necessary to allow the remaining snow after the end of snowmelt control to be melted by freezing prevention control, and wasteful energy can be reduced by freezing prevention control.
第４発明の融雪制御装置の一実施例としての図５は、融雪遅れ温度設定器５と地温判定器６と融雪遅れカウンタ７とANDゲート４からなる融雪遅れ時間検出器３と、遅延タイマ８を具備し、降雪センサ１と、地温センサ２と、道路や屋根等の水分の有無を検知する水分センサ１４と、外気温センサ１３、及び降雪予測情報を入力できる情報端末装置２０とを制御要素判別器１８に接続して、融雪制御，凍結防止制御，予熱制御の温度制御を行う融雪制御装置である。 FIG. 5 as an embodiment of the snow melting control apparatus according to the fourth aspect of the present invention shows a snow melting delay time detector 3 comprising a snow melting delay temperature setter 5, a ground temperature determiner 6, a snow melting delay counter 7 and an AND gate 4, and a delay timer 8. And a snowfall sensor 1, a ground temperature sensor 2, a moisture sensor 14 for detecting the presence or absence of moisture on a road or a roof, an outside air temperature sensor 13, and an information terminal device 20 capable of inputting snowfall prediction information as control elements. The snow melting control device is connected to the discriminator 18 and performs temperature control of snow melting control, anti-freezing control, and preheating control.
情報端末装置２０は、無線回線、有線回線等の通信線で降雪予測情報を提供する中央装置へ接続して降雪予測情報を入手し、制御要素判別器１８へ降雪予測情報を入力する機能を有する装置であり、制御要素判別器１８へ内蔵することも可能である。 The information terminal device 20 has a function of obtaining snow prediction information by connecting to a central device that provides snow prediction information through a communication line such as a wireless line or a wired line, and inputting the snow prediction information to the control element discriminator 18. It is a device and can be built in the control element discriminator 18.
降雪センサ１の降雪中と遅延タイマ８からの融雪遅延時間中の信号とを融雪ＯＲゲート１１Ａから入力し、地温センサ２、外気温センサ１３、水分センサ１４からの信号を接続された制御要素判別器１８は、情報端末装置２０からの降雪予測情報により制御要素判別器１８内の融雪設定器１５と凍結防止設定器１６と予熱設定器１７の設定値を変更して、発熱体１９の融雪制御，凍結防止制御，予熱制御の温度制御を行う。 Signals during snowfall of the snowfall sensor 1 and during the snowmelt delay time from the delay timer 8 are input from the snowmelt OR gate 11A, and the control element discrimination to which the signals from the ground temperature sensor 2, the outside air temperature sensor 13, and the moisture sensor 14 are connected. The device 18 changes the setting values of the snow melting setting device 15, the anti-freezing setting device 16 and the preheating setting device 17 in the control element discriminating device 18 according to the snowfall prediction information from the information terminal device 20, and controls the snow melting of the heating element 19. , Temperature control for freeze prevention control and preheating control.
降雪が始まると降雪センサ１からの降雪中「１」と、地温が融雪遅れ温度設定器５の設定温度以上になるまで地温判定器６からの出力「１」により、融雪遅れカウンタ７は、カウンタ値（ＴＣ）をカウントアップし、地温が融雪遅れ温度以上になると地温判定器６からの出力が「０」になりカウントアップを停止し、カウンタ値（ＴＣ）が融雪遅れ時間となる。 When snowfall begins, the snowmelt delay counter 7 is countered by “1” during the snowfall from the snowfall sensor 1 and the output “1” from the ground temperature determiner 6 until the ground temperature becomes equal to or higher than the set temperature of the snowmelt delay temperature setter 5. When the value (TC) is counted up and the ground temperature becomes equal to or higher than the snow melting delay temperature, the output from the ground temperature determination unit 6 becomes “0” and stops counting, and the counter value (TC) becomes the snow melting delay time.
降雪終了時に地温が融雪遅れ温度以上になるまでの時間を記録している融雪遅れカウンタ７のカウンタ値（ＴＣ）を加算した遅延タイマ８は、降雪終了後からタイマ値（ＦＴＤ）の減算を開始し、融雪ＯＲゲート１１Ａにより降雪中とタイマ値（ＦＴＤ）の減算中の期間を、降雪中と融雪遅延時間からなる融雪制御期間として制御要素判別器１８へ入力され、融雪制御を行う。 The delay timer 8 that adds the counter value (TC) of the snow melting delay counter 7 that records the time until the ground temperature becomes equal to or higher than the snow melting delay temperature at the end of snowfall starts subtraction of the timer value (FTD) after the end of snowfall Then, the period during snowing and the subtraction of the timer value (FTD) by the snow melting OR gate 11A is input to the control element discriminator 18 as the snow melting control period consisting of the snowing and the snow melting delay time, and the snow melting control is performed.
降雪終了時に融雪遅れ時間検出器３の融雪遅れ時間を遅延タイマ８に加算して融雪遅延時間として融雪制御ができることにより、水分センサ１４と、降雪センサ１と、地温センサ２と、外気温センサ１３を具備し、情報端末装置２０からの降雪予測情報により制御要素判別器１８内の融雪設定器１５と凍結防止設定器１６と予熱設定器１７の設定値を変更して、発熱体１９の融雪制御，凍結防止制御，予熱制御の温度制御を行う融雪制御装置は、降雪確率が低い時に降雪があっても融雪制御終了後に残雪が発生しないため、凍結防止制御の地温設定も低く設定可能となり、凍結防止制御による無駄なエネルギーを削減できる。
By adding the snow melting delay time of the snow melting delay time detector 3 to the delay timer 8 at the end of the snowfall and performing snow melting control as the snow melting delay time, the moisture sensor 14, the snowfall sensor 1, the ground temperature sensor 2, and the outside air temperature sensor 13 can be controlled. And the setting values of the snow melting setting unit 15, the anti-freezing setting unit 16 and the preheating setting unit 17 in the control element discriminator 18 are changed according to the snowfall prediction information from the information terminal device 20, and the snow melting control of the heating element 19 is performed. In the snow melting control device that controls the temperature of anti-freezing control and preheating control, even if there is a snowfall probability, no snow is generated after snow melting control even if there is snowfall. Wasteful energy can be reduced by prevention control.
１ ：降雪センサ
１Ａ ：降雪ＯＲゲート
２ ：地温センサ
３ ：融雪遅れ時間検出器
４ ：ＡＮＤゲート
５ ：融雪遅れ温度設定器
６ ：地温判定器
７ ：融雪遅れカウンタ
８ ：遅延タイマ
８Ａ ：遅延時間設定器
８Ｂ ：固定遅延タイマ
８Ｃ ：融雪遅れタイマ
８Ｄ ：遅延ＯＲゲート
９ ：融雪温度設定器
１０ ：予熱温度設定器
１１ ：制御選択器
１１Ａ：融雪ＯＲゲート
１１Ｂ：融雪ＡＮＤゲート
１１Ｃ：反転入力付きＡＮＤゲート
１１Ｄ：選択ＯＲゲート
１２ ：発熱体温度制御器
１３ ：外気温センサ
１４ ：水分センサ
１５ ：融雪設定器
１６ ：凍結防止設定器
１７ ：予熱設定器
１８ ：制御要素判別器
１９ ：発熱体
２０ ：情報端末装置
1: Snowfall sensor 1A: Snowfall OR gate 2: Ground temperature sensor 3: Snow melting delay time detector 4: AND gate 5: Snow melting delay temperature setting device 6: Ground temperature determination device 7: Snow melting delay counter 8: Delay timer 8A: Delay time setting Unit 8B: Fixed delay timer 8C: Snow melting delay timer 8D: Delay OR gate 9: Snow melting temperature setting device 10: Preheating temperature setting device 11: Control selector 11A: Snow melting OR gate 11B: Snow melting AND gate 11C: AND gate with inverting input 11D: selection OR gate 12: heating element temperature controller 13: outside air temperature sensor 14: moisture sensor 15: snow melting setting device 16: anti-freezing setting device 17: preheating setting device 18: control element discriminator 19: heating element 20: information Terminal device
Claims (4)
In a snow melting facility where a heating element such as a heating wire or a hot water pipe is embedded or arranged near the surface of a road or roof, and a snow temperature sensor for detecting snow and a ground temperature sensor for detecting the temperature of a road or roof, etc. are installed. A snow melting delay time detector that measures the time from the start of snow melting control that detects snowfall and heats the heating element until the ground temperature reaches a preset snow melting start temperature, and at the end of snowfall, a snow melting delay time detector The delay time of the snowmelt is added to the timer, and a delay timer that subtracts the snowmelt delay time from the end of snowfall is provided, and the ground temperature control is performed as the snowmelt control during the snowfall and the time until the delay timer value becomes zero A snow melting control device.
A fixed delay timer that sets a preset value at the start of snowfall to the fixed timer, subtracts the fixed timer after the end of snowfall, and outputs a fixed delay signal until the subtraction end when the fixed timer value becomes zero, and a fixed delay timer The delay timer according to claim 1, further comprising: a snow melting delay timer that adds the snow melting delay time of the snow melting delay time detector to the timer at the end of the subtraction, and subtracts the snow melting delay time from the end of the subtraction of the fixed delay timer; And a snow-melting delay time detector configured to input a fixed-delay signal from the fixed-delay timer and a snow-fall signal from the snow-fall sensor as falling snow. A snow melting control device that performs ground temperature control as snow melting control for a period until a delay timer value becomes zero.
The snowfall facility of claim 1 and the snowmelt facility equipped with a ground temperature sensor are equipped with a moisture sensor for detecting the presence or absence of moisture on roads, roofs, etc., and an outside air temperature sensor for snowmelt control, freeze prevention control, and preheating control. Snow melting control device to perform.
The snow melting facility according to claim 1 and the snow melting facility equipped with a ground temperature sensor comprise a moisture sensor for detecting the presence or absence of moisture on a road or a roof, an outside air temperature sensor, and an information terminal device for inputting snow forecast information. A snow melting control device that controls the temperature of snow melting control, anti-freezing control, and preheating control based on snow forecast information.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2006108118A JP2007277999A (en) | 2006-04-10 | 2006-04-10 | Snow-melting controller |
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|---|---|---|---|
| JP2006108118A JP2007277999A (en) | 2006-04-10 | 2006-04-10 | Snow-melting controller |
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| JP2007277999A true JP2007277999A (en) | 2007-10-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914329A (en) * | 2019-03-29 | 2019-06-21 | 河南省安以奇科技有限公司 | A kind of vehicle-mounted deicing salt installation aiding device and its application method |
| CN110670532A (en) * | 2019-10-18 | 2020-01-10 | 中国神华能源股份有限公司神朔铁路分公司 | Anti-freezing device and anti-freezing tunnel |
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2006
- 2006-04-10 JP JP2006108118A patent/JP2007277999A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914329A (en) * | 2019-03-29 | 2019-06-21 | 河南省安以奇科技有限公司 | A kind of vehicle-mounted deicing salt installation aiding device and its application method |
| CN109914329B (en) * | 2019-03-29 | 2024-04-09 | 河南省安以奇科技有限公司 | Vehicle-mounted snow-melting agent layout device and application method thereof |
| CN110670532A (en) * | 2019-10-18 | 2020-01-10 | 中国神华能源股份有限公司神朔铁路分公司 | Anti-freezing device and anti-freezing tunnel |
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