JPS6335199U - - Google Patents
Info
- Publication number
- JPS6335199U JPS6335199U JP11553287U JP11553287U JPS6335199U JP S6335199 U JPS6335199 U JP S6335199U JP 11553287 U JP11553287 U JP 11553287U JP 11553287 U JP11553287 U JP 11553287U JP S6335199 U JPS6335199 U JP S6335199U
- Authority
- JP
- Japan
- Prior art keywords
- digit
- constant current
- current source
- pointer
- tap
- 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.)
- Granted
Links
- 238000000605 extraction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Description
第１図は従来の検針装置の概略構成図、第２図
ａ，ｂ，ｃは第１図の構成の動作を説明するタイ
ムチヤート、第３図は本考案の一実施例に係る検
針装置の概略構成図、第４図ａ，ｂ，ｃ，ｄは第
３図の構成の動作を説明するタイムチヤートであ
る。
１……検針装置本体、２……水道メータ、３，
４，５……３芯ケーブル、６……定電流源、７…
…Ａ―Ｄ変換器、８……電源装置、９……クロツ
クパルス発生回路、１０……データ表示器、１１
〜１４……桁切換用トランジスタ、１１Ａ〜１４
Ａ……切換スイツチ、１５……切換回路、２１…
…２重接続検出回路、２２……フリツプフロツプ
。
Fig. 1 is a schematic configuration diagram of a conventional meter-reading device, Fig. 2 a, b, and c are time charts explaining the operation of the configuration of Fig. 1, and Fig. 3 is a diagram of a meter-reading device according to an embodiment of the present invention. The schematic configuration diagrams in FIGS. 4a, b, c, and d are time charts for explaining the operation of the configuration in FIG. 3. 1... Meter reading device body, 2... Water meter, 3,
4, 5...3-core cable, 6...constant current source, 7...
...A-D converter, 8...Power supply device, 9...Clock pulse generation circuit, 10...Data display, 11
~14...Digit switching transistor, 11A~14
A...Switching switch, 15...Switching circuit, 21...
...Double connection detection circuit, 22...Flip-flop.
Claims (1)
抵抗群と、指針の各桁に連動して前記タツプを切
換選択すべく各桁毎に対応して設けられた切換ス
イツチと、前記切換スイツチのそれぞれに接続さ
れる桁選択用のスイツチング素子と、前記スイツ
チング素子のスイツチング動作に連動して前記定
電流源の出力電圧を計測し各桁毎のデータを取り
出す取出手段と、前記スイツチング素子をすべて
開放させるタイミングで前記定電流源の出力電圧
を基準電圧と突き合せる比較手段とを備え、前記
比較手段の出力に基いて２重接続を予測判別する
ことを特徴とする検針装置。 A resistor group with a tap that receives constant current from a constant current source, a changeover switch provided for each digit to switch and select the tap in conjunction with each digit of the pointer, and a changeover switch provided for each digit of the pointer. A switching element for selecting a digit connected to each, an extraction means for measuring the output voltage of the constant current source and extracting data for each digit in conjunction with the switching operation of the switching element, and opening all the switching elements. A meter reading device comprising: comparison means for comparing the output voltage of the constant current source with a reference voltage at a timing when the constant current source is set, and predicting and determining a double connection based on the output of the comparison means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553287U JPH0431680Y2 (en) | 1987-07-28 | 1987-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553287U JPH0431680Y2 (en) | 1987-07-28 | 1987-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335199U true JPS6335199U (en) | 1988-03-07 |
| JPH0431680Y2 JPH0431680Y2 (en) | 1992-07-29 |
Family
ID=30999273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11553287U Expired JPH0431680Y2 (en) | 1987-07-28 | 1987-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431680Y2 (en) |
-
1987
- 1987-07-28 JP JP11553287U patent/JPH0431680Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0431680Y2 (en) | 1992-07-29 |
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