JPH01129636U

JPH01129636U -

Info

Publication number: JPH01129636U
Application number: JP2071388U
Authority: JP
Priority date: 1988-02-19
Filing date: 1988-02-19
Publication date: 1989-09-04

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すブロツク図
、第２図はこの考案に用いた表示器の表示の一例
を示す正面図、第３図はこの考案の動作を説明す
るための波形図、第４図は温度センサの特性の一
例を示すグラフである。１０Ａ〜１０Ｈ：温度センサ群、１１：接続箱
、２０：切替回路、３０：電源、４０：選択回路
、５０：可変利得増幅器、６０：ＡＤ変換手段、
７０：正規化手段、８０：温度算出手段及び温度
比較手段を構成するマイクロコンピユータ、９０
：表示器、１００：警報器。 Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a front view showing an example of the display of the display used in this invention, and Fig. 3 is a waveform diagram to explain the operation of this invention. , FIG. 4 is a graph showing an example of the characteristics of the temperature sensor. 10A to 10H: temperature sensor group, 11: connection box, 20: switching circuit, 30: power supply, 40: selection circuit, 50: variable gain amplifier, 60: AD conversion means,
70: Normalization means, 80: Microcomputer constituting temperature calculation means and temperature comparison means, 90
: Display device, 100: Alarm device.

Claims

[Claims for Utility Model Registration] A. A switching circuit that selectively connects a plurality of temperature sensors to a power source; B. A selection circuit that sequentially captures detection signals generated by temperature sensors connected to a power source; C. A variable gain amplifier that amplifies the detection signal selected and extracted by the selection circuit; D AD conversion means that AD converts the amplified output of this variable gain amplifier; E A digital value output from this AD conversion means is within a predetermined range. a normalizing means for controlling the gain of the variable gain amplifier so that the gain of the variable gain amplifier is within the range of 100 to 100%; and a control value of the normalization means to obtain a detected temperature value; H a display that displays the detected temperature value calculated by the temperature calculation means and the number of the temperature sensor; I the temperature The detected temperature value calculated by the calculation means,
a temperature comparison means for comparing the set temperature stored in the set temperature storage means; J; when this temperature comparison means detects that the detected temperature is out of the set value, the number of the temperature sensor corresponding to the detected temperature is displayed; A multi-point temperature monitoring device comprising: an abnormality indicator for detecting an abnormality;