JPH0737189Y2 - 超音波式防犯警戒器 - Google Patents
超音波式防犯警戒器Info
- Publication number
- JPH0737189Y2 JPH0737189Y2 JP1987051428U JP5142887U JPH0737189Y2 JP H0737189 Y2 JPH0737189 Y2 JP H0737189Y2 JP 1987051428 U JP1987051428 U JP 1987051428U JP 5142887 U JP5142887 U JP 5142887U JP H0737189 Y2 JPH0737189 Y2 JP H0737189Y2
- Authority
- JP
- Japan
- Prior art keywords
- wave
- detecting
- mode
- warning area
- detection mode
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 52
- 230000005856 abnormality Effects 0.000 claims description 30
- 230000001788 irregular Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 description 16
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987051428U JPH0737189Y2 (ja) | 1987-04-03 | 1987-04-03 | 超音波式防犯警戒器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987051428U JPH0737189Y2 (ja) | 1987-04-03 | 1987-04-03 | 超音波式防犯警戒器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63159481U JPS63159481U (en]) | 1988-10-19 |
JPH0737189Y2 true JPH0737189Y2 (ja) | 1995-08-23 |
Family
ID=30875676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987051428U Expired - Lifetime JPH0737189Y2 (ja) | 1987-04-03 | 1987-04-03 | 超音波式防犯警戒器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0737189Y2 (en]) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5767869A (en) * | 1980-10-15 | 1982-04-24 | Toshiba Corp | Detector for intrusion |
-
1987
- 1987-04-03 JP JP1987051428U patent/JPH0737189Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63159481U (en]) | 1988-10-19 |
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