JPS6237161B2 - - Google Patents
Info
- Publication number
- JPS6237161B2 JPS6237161B2 JP12955082A JP12955082A JPS6237161B2 JP S6237161 B2 JPS6237161 B2 JP S6237161B2 JP 12955082 A JP12955082 A JP 12955082A JP 12955082 A JP12955082 A JP 12955082A JP S6237161 B2 JPS6237161 B2 JP S6237161B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- output
- heater
- scr
- moisture
- 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.)
- Expired
Links
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Landscapes
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Paving Structures (AREA)
- Control Of Non-Electrical Variables (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はロードヒーテイング用自動制御装置に
係る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic control device for road heating.
従来のロードヒーテイング用制御装置にあつて
は、道路輔装体内に埋設した水分センサ、温度セ
ンサにより路面の水分（降雪）、路面の温度を検
出し、路面に水分があり且つ路面温度が通電開始
温度以下である時、電磁接触器を作動させヒータ
に通電する。
Conventional road heating control devices detect road surface moisture (snowfall) and road surface temperature using a moisture sensor and temperature sensor embedded in the road infrastructure, and detect when there is moisture on the road surface and when the road surface temperature is energized. When the temperature is below the starting temperature, the electromagnetic contactor is activated to energize the heater.
また、融雪が進行し路面が通電停止温度に達す
ると、電磁接触器によりヒータへの通電を停止す
る。 Further, when snow melting progresses and the road surface reaches a temperature at which power is cut off, the electromagnetic contactor stops powering the heater.
上記従来の制御装置において、電磁接触器の開
閉頻度を低減させるため、通電開始温度と停止温
度とには、数℃の温度差を持たせる。ところが、
この温度差内で通電される電力は、直接には融雪
凍結防止等には利用されておらず、不要な電力で
ある。
In the conventional control device described above, in order to reduce the frequency of opening and closing of the electromagnetic contactor, a temperature difference of several degrees Celsius is provided between the energization start temperature and the energization stop temperature. However,
The power supplied within this temperature difference is not directly used for melting snow and preventing freezing, and is unnecessary power.
また、前記の水分センサは、その内蔵ヒータに
より雪または氷を水に変換し、水による電極間の
静電容量、電気抵抗等の変化を電気信号として取
出すものである。従つて、水分センサの融雪速度
を路面のそれと一致させる必要があり、内蔵ヒー
タの容量を可変とする必要がある。しかし乍ら、
現状ではたかだか段階程度の段階的調節しかなし
得ず、精緻な調節はできない。 Further, the moisture sensor described above converts snow or ice into water using its built-in heater, and extracts changes in capacitance, electrical resistance, etc. between electrodes due to water as an electrical signal. Therefore, it is necessary to match the snow melting speed of the moisture sensor with that of the road surface, and it is necessary to make the capacity of the built-in heater variable. However,
At present, only step-by-step adjustments can be made, and precise adjustments cannot be made.
本発明は上記の事情に基きなされたもので、不
要の電力を消費することなく、また水分センサ融
雪速度の微細調節の可能なロードヒーテイング用
制御装置を得ることを目的としている。
The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a road heating control device that allows fine adjustment of the moisture sensor snow melting speed without consuming unnecessary power.
本発明のロードヒーテイング用制御装置は、路
面の温度を検知する温度センサと、この温度セン
サの出力を入力とし比例制御またはPID制御によ
り設定温度との偏差に相当する出力を発生する温
度調節器と、ヒータを内蔵しこれにより降雪を融
解する水分センサと、この水分センサの出力を入
力とし路面の降雪を検知する水分検出器と、前記
温度調節器および前記水分検出器の出力を入力と
し入力（電源）出力（ロードヒータ）間に介在さ
れたSCRの位相制御を行い、前記水分検出器の
出力がある時出力電圧を前記偏差に応じて変化さ
せるSCRコントローラと、前記水分センサ内の
融雪を路面の融雪に近似させるため前記水分セン
サの内蔵ヒータに前記SCRの出力電圧に比例し
た電圧を印加する手段とを有することを特徴とす
る。
The road heating control device of the present invention includes a temperature sensor that detects the temperature of the road surface, and a temperature controller that uses the output of this temperature sensor as input and generates an output corresponding to the deviation from the set temperature by proportional control or PID control. a moisture sensor that has a built-in heater and melts snowfall; a moisture detector that uses the output of this moisture sensor as input to detect snowfall on the road; and inputs the outputs of the temperature regulator and the moisture detector. an SCR controller that performs phase control of an SCR interposed between the (power supply) output (load heater) and changes the output voltage according to the deviation when there is an output of the moisture detector; It is characterized by comprising means for applying a voltage proportional to the output voltage of the SCR to the built-in heater of the moisture sensor in order to approximate snow melting on a road surface.
図において、温度センサ１の出力は比例制御ま
たはPID制御により設定温度と前記温度センサの
出力との偏差を発生する温度調節器２に入力さ
れ、この調節器２の出力と水分センサ３の出力に
より水分の有無を検出する水分検出器４の出力
は、SCRコントローラ５に入力されている。
SCRコントローラ５は入力電源１および出力
（ロードヒータ）０間に介在されたSCR６を制御
する。
In the figure, the output of a temperature sensor 1 is input to a temperature regulator 2 which generates a deviation between the set temperature and the output of the temperature sensor by proportional control or PID control, and the output of this regulator 2 and the output of a moisture sensor 3 are The output of the moisture detector 4, which detects the presence or absence of moisture, is input to the SCR controller 5.
The SCR controller 5 controls the SCR 6 interposed between the input power source 1 and the output (load heater) 0.
すなわち、SCRコントローラ５は水分検出器
４の出力（路面に降雪）がある時、前記温度調節
器の発生する温度偏差に対応してSCR６の位相
制御を行い、SCR６の出力電圧を前記温度偏差
に応じて変化させる。なお図中７は水分センサの
内蔵ヒータ、８は水分センサのボツクスを示して
いる。さらに図中は簡単化のため単に配線９が示
してあるが、内蔵ヒータ７にはロードヒータに供
給される電流に比例した電流が印加される。 That is, when there is an output from the moisture detector 4 (snowfall on the road surface), the SCR controller 5 controls the phase of the SCR 6 in response to the temperature deviation generated by the temperature controller, and adjusts the output voltage of the SCR 6 to the temperature deviation. Change accordingly. In the figure, 7 indicates the built-in heater of the moisture sensor, and 8 indicates the box of the moisture sensor. Furthermore, although the wiring 9 is only shown in the figure for simplicity, a current proportional to the current supplied to the load heater is applied to the built-in heater 7.
上記構成の本発明装置においては、比例制御ま
たはPID制御により設定温度と路面温度との偏差
を発生する温度調節器２の出力により位相制御さ
れるSCR６によつてロードヒータの温度調節が
なされるので、従来のオン、オフ制御の如く不要
の電力を消費することはない。また、水分センサ
の内蔵ヒータ７にはロードヒータに印加される電
流に比例した電流が印加されるので、比例定数を
適切に選定することにより、ロードヒータの融雪
速度と内蔵ヒータ７のそれとはかなり正確に近似
される。 In the device of the present invention having the above configuration, the temperature of the road heater is adjusted by the SCR 6 which is phase controlled by the output of the temperature regulator 2 which generates a deviation between the set temperature and the road surface temperature by proportional control or PID control. Unlike conventional on/off control, unnecessary power is not consumed. In addition, since a current proportional to the current applied to the load heater is applied to the built-in heater 7 of the moisture sensor, by appropriately selecting the proportionality constant, the snow melting speed of the load heater and that of the built-in heater 7 can be significantly different. Accurately approximated.
なお、本発明は上記実施例のみに限定されな
い。例えば、温度センサをボツクス８の側面に取
付け設置工事、配管工事等を容易とすることがで
きる。 Note that the present invention is not limited to the above embodiments. For example, the temperature sensor can be attached to the side of the box 8 to facilitate installation work, piping work, etc.
上記のように、本発明装置によればロードヒー
テイング用電力を従来より削減できるので、消エ
ネルギ上有益である。また、ロードヒータの融雪
速度と水分検出器の内蔵ヒータのそれとを精密に
一致させることができるので、正確な制御を行う
ことができる。
As described above, according to the present invention, the power for load heating can be reduced compared to the conventional apparatus, which is advantageous in terms of energy consumption. Further, since the snow melting speed of the road heater can be precisely matched with that of the built-in heater of the moisture detector, accurate control can be performed.
図は本発明一実施のの概略ブロツク図である。
１……温度センサ、２……比例制御またはPID
制御温度調節器、３……水分センサ、４……水分
検出器、５……SCRコントローラ、６……
SCR、７……内蔵ヒータ、Ｉ……入力、ｏ……
出力。
The figure is a schematic block diagram of one implementation of the present invention. 1...Temperature sensor, 2...Proportional control or PID
Control temperature regulator, 3... Moisture sensor, 4... Moisture detector, 5... SCR controller, 6...
SCR, 7...Built-in heater, I...Input, o...
output.
Claims (1)
度センサの出力を入力とし比例制御またはPID制
御により設定温度との偏差に相当する出力を発生
する温度調節器と、ヒータを内蔵しこれにより降
雪を融解する水分センサと、この水分センサの出
力を入力とし路面の降雪を検知する水分検出器
と、前記温度調節器および前記水分検出器の出力
を入力とし入力（電源）出力（ロードヒータ）間
に介在されたSCRの位相制御を行い、前記水分
検出器の出力がある時出力電流を前記偏差に応じ
て変化させるSCRコントローラと、前記水分セ
ンサ内の融雪を路面の融雪に近似させるため前記
水分センサの内蔵ヒータに前記SCRの出力電流
に比例した電流を印加する手段とを有することを
特徴とするロードヒーテイング用制御装置。1. A temperature sensor that detects the temperature of the road surface, a temperature controller that uses the output of this temperature sensor as input and generates an output corresponding to the deviation from the set temperature using proportional control or PID control, and a built-in heater that prevents snowfall. A melting moisture sensor, a moisture detector that uses the output of this moisture sensor as input and detects snowfall on the road surface, and an input (power supply) and output (road heater) that uses the outputs of the temperature regulator and moisture detector as input. an SCR controller that performs phase control of the interposed SCR and changes the output current according to the deviation when there is an output of the moisture detector; and means for applying a current proportional to the output current of the SCR to the built-in heater of the SCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12955082A JPS5921804A (en) | 1982-07-27 | 1982-07-27 | Road heating control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12955082A JPS5921804A (en) | 1982-07-27 | 1982-07-27 | Road heating control apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5921804A JPS5921804A (en) | 1984-02-03 |
| JPS6237161B2 true JPS6237161B2 (en) | 1987-08-11 |
Family
ID=15012275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12955082A Granted JPS5921804A (en) | 1982-07-27 | 1982-07-27 | Road heating control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5921804A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62280406A (en) * | 1986-05-29 | 1987-12-05 | 株式会社フジクラ | Snow melting method |
| JPS6386105U (en) * | 1986-11-21 | 1988-06-06 |
-
1982
- 1982-07-27 JP JP12955082A patent/JPS5921804A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5921804A (en) | 1984-02-03 |
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