JPH01120292U - - Google Patents
Info
- Publication number
- JPH01120292U JPH01120292U JP1488088U JP1488088U JPH01120292U JP H01120292 U JPH01120292 U JP H01120292U JP 1488088 U JP1488088 U JP 1488088U JP 1488088 U JP1488088 U JP 1488088U JP H01120292 U JPH01120292 U JP H01120292U
- Authority
- JP
- Japan
- Prior art keywords
- analog signal
- circuit
- storage circuit
- signal storage
- memory control
- 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 3
- 238000010586 diagram Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Landscapes
- Feedback Control In General (AREA)
- Control Of Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
- Emergency Alarm Devices (AREA)
Description
第1図は本考案の実施例による変化率検出装置
を配水システムに適用したブロツク図、第2図は
第1図の装置のメモリ制御回路の結線図、第3図
は第1図の装置の動作タイミング図、第4図はア
ナログ信号記憶回路の入力信号特性図、第5図は
アナログ信号記憶回路の出力信号特性図、第6図
は従来の変化率検出装置を配水システムに適用し
たブロツク図である。
3……流量計、9……アナログ信号記憶回路、
10……メモリ制御回路、11……偏差警報回路
。
Fig. 1 is a block diagram of a rate-of-change detection device according to an embodiment of the present invention applied to a water distribution system, Fig. 2 is a wiring diagram of the memory control circuit of the device of Fig. 1, and Fig. 3 is a diagram of the device of Fig. 1. Operation timing diagram, Figure 4 is an input signal characteristic diagram of the analog signal storage circuit, Figure 5 is an output signal characteristic diagram of the analog signal storage circuit, and Figure 6 is a block diagram of a conventional change rate detection device applied to a water distribution system. It is. 3...Flowmeter, 9...Analog signal storage circuit,
10...Memory control circuit, 11...Difference alarm circuit.
Claims (1)
記憶回路と、該アナログ信号記憶回路の出力タイ
ミングを制御するメモリ制御回路と、該メモリ制
御回路の制御に応じて前記アナログ信号記憶回路
から出力される過去のアナログ信号と現在のアナ
ログ信号を所定の時間間隔で比較しその偏差に基
づいて信号を出力する偏差警報回路によつて構成
したことを特徴とする変化率検出装置。 an analog signal storage circuit that inputs continuous analog signals; a memory control circuit that controls the output timing of the analog signal storage circuit; and a past analog signal that is output from the analog signal storage circuit in accordance with the control of the memory control circuit. 1. A rate-of-change detection device comprising a deviation alarm circuit that compares a signal and a current analog signal at predetermined time intervals and outputs a signal based on the deviation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1488088U JPH01120292U (en) | 1988-02-06 | 1988-02-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1488088U JPH01120292U (en) | 1988-02-06 | 1988-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01120292U true JPH01120292U (en) | 1989-08-15 |
Family
ID=31226463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1488088U Pending JPH01120292U (en) | 1988-02-06 | 1988-02-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01120292U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104263A (en) * | 1984-10-26 | 1986-05-22 | Mitsubishi Electric Corp | Automatic inspection apparatus of number-of-rotation detection apparatus |
-
1988
- 1988-02-06 JP JP1488088U patent/JPH01120292U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104263A (en) * | 1984-10-26 | 1986-05-22 | Mitsubishi Electric Corp | Automatic inspection apparatus of number-of-rotation detection apparatus |
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