JPH01168839U - - Google Patents
Info
- Publication number
- JPH01168839U JPH01168839U JP6513988U JP6513988U JPH01168839U JP H01168839 U JPH01168839 U JP H01168839U JP 6513988 U JP6513988 U JP 6513988U JP 6513988 U JP6513988 U JP 6513988U JP H01168839 U JPH01168839 U JP H01168839U
- Authority
- JP
- Japan
- Prior art keywords
- temperature detection
- detection sensors
- dividing resistors
- voltage dividing
- microcomputer
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係わる温度検知回路の一実施
例を示す構成図、第２図は本発明回路の変形例を
示す構成図、第３図はホームセキユリテイシステ
ムの概略構成図、第４図は従来の温度検知回路の
構成図である。
１０…コントローラ、１１―１〜１１―３…サ
ーミスタ、１２…マイクロコンピユータ、１３…
電池、１４…警報器、Ｒ１〜Ｒ６…分圧用抵抗、
Ｑａ…ＰＮＰ型トランジスタ。
FIG. 1 is a block diagram showing an embodiment of the temperature detection circuit according to the present invention, FIG. 2 is a block diagram showing a modified example of the circuit of the present invention, FIG. 3 is a schematic block diagram of a home security system, and FIG. The figure is a configuration diagram of a conventional temperature detection circuit. 10...Controller, 11-1 to 11-3...Thermistor, 12...Microcomputer, 13...
Battery, 14...Alarm, R1 to R6 ...Resistance for voltage division,
Qa...PNP type transistor.
Claims (1)
サにそれぞれ接続された各分圧用抵抗と、電池と
、一端に前記各分圧用抵抗を通して前記各温度検
知センサが共通接続されるとともに他端に前記電
池が接続されたスイツチング素子と、このスイツ
チング素子を所定周期毎に導通させこのときに前
記各温度検知センサと前記各分圧用抵抗との間に
現われる電圧を受けて温度を検知するマイクロコ
ンピユータとを具備したことを特徴とする温度検
知回路。 A plurality of temperature detection sensors, voltage dividing resistors respectively connected to these temperature detection sensors, and a battery, each of the temperature detection sensors being commonly connected to one end through each of the voltage dividing resistors, and the battery being connected to the other end. The microcomputer is equipped with a connected switching element and a microcomputer that conducts the switching element at predetermined intervals and receives a voltage appearing between each of the temperature detection sensors and each of the voltage dividing resistors to detect the temperature. A temperature detection circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6513988U JPH01168839U (en) | 1988-05-19 | 1988-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6513988U JPH01168839U (en) | 1988-05-19 | 1988-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01168839U true JPH01168839U (en) | 1989-11-28 |
Family
ID=31290583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6513988U Pending JPH01168839U (en) | 1988-05-19 | 1988-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01168839U (en) |
-
1988
- 1988-05-19 JP JP6513988U patent/JPH01168839U/ja active Pending
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