JPS63122893U - - Google Patents
Info
- Publication number
- JPS63122893U JPS63122893U JP1465787U JP1465787U JPS63122893U JP S63122893 U JPS63122893 U JP S63122893U JP 1465787 U JP1465787 U JP 1465787U JP 1465787 U JP1465787 U JP 1465787U JP S63122893 U JPS63122893 U JP S63122893U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- resistor
- product
- reed switch
- command signal
- 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
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Burglar Alarm Systems (AREA)
Description
第1図はこの考案の一実施例の構成を示す回路
図、第2図a,b、第3図a,b、及び第4図a
,bはウインド・コンパレータの構成及び出力特
性図、第5図はセンサ部の従来例を示す構成図で
ある。
符号の説明、1……センサ部、2……判別部、
3……警報信号出力部、4……マグネツト、5…
…リードスイツチ、6……ウインド・コンパレー
タ、7……ラツチ回路、8……発振器、9……ス
ピーカ、10,11……比較器、12……商品、
13……凹部、14……ANDゲート。
Fig. 1 is a circuit diagram showing the configuration of an embodiment of this invention, Fig. 2 a, b, Fig. 3 a, b, and Fig. 4 a.
, b are the configuration and output characteristic diagrams of the window comparator, and FIG. 5 is a configuration diagram showing a conventional example of the sensor section. Explanation of symbols, 1...Sensor section, 2...Discrimination section,
3... Alarm signal output section, 4... Magnet, 5...
... Reed switch, 6 ... Window comparator, 7 ... Latch circuit, 8 ... Oscillator, 9 ... Speaker, 10, 11 ... Comparator, 12 ... Product,
13... recess, 14... AND gate.
Claims (1)
トの移動を検知して開くリードスイツチに所定値
の抵抗を直列に接続した回路を有すると共に前記
マグネツトを収容可能な凹部を有して成り、当該
凹部で前記マグネツトを覆う様に商品上に接着さ
れたセンサ部と、前記リードスイツチが閉路され
ているとき前記抵抗を通して流れる電流に基づき
生ずる電圧値を含む所定の基準電圧域が設定され
、かつ前記電圧値が前記基準電圧域から外れたと
き指令信号を出力する判別部と、当該指令信号の
出力により以上を知らせる警報部とを備えた接着
式盗難防止装置。 It has a circuit in which a resistor of a predetermined value is connected in series with a magnet adhered to the product and a reed switch that detects movement of the magnet and opens, and has a recess that can accommodate the magnet. A predetermined reference voltage range is set that includes a sensor portion bonded on the product so as to cover the magnet, and a voltage value generated based on the current flowing through the resistor when the reed switch is closed, and the voltage value is An adhesive-type anti-theft device comprising: a discrimination section that outputs a command signal when the voltage falls outside the reference voltage range; and an alarm section that notifies the above by outputting the command signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1465787U JPS63122893U (en) | 1987-02-03 | 1987-02-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1465787U JPS63122893U (en) | 1987-02-03 | 1987-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63122893U true JPS63122893U (en) | 1988-08-10 |
Family
ID=30804847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1465787U Pending JPS63122893U (en) | 1987-02-03 | 1987-02-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63122893U (en) |
-
1987
- 1987-02-03 JP JP1465787U patent/JPS63122893U/ja active Pending
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