JP2007032217A - 静電容量式施錠スイッチ - Google Patents
静電容量式施錠スイッチ Download PDFInfo
- Publication number
- JP2007032217A JP2007032217A JP2005221150A JP2005221150A JP2007032217A JP 2007032217 A JP2007032217 A JP 2007032217A JP 2005221150 A JP2005221150 A JP 2005221150A JP 2005221150 A JP2005221150 A JP 2005221150A JP 2007032217 A JP2007032217 A JP 2007032217A
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- JP
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- Prior art keywords
- capacitance
- circuit
- change
- output
- time
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 238000004904 shortening Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
- E05B81/78—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles as part of a hands-free locking or unlocking operation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/96071—Capacitive touch switches characterised by the detection principle
- H03K2217/960715—Rc-timing; e.g. measurement of variation of charge time or discharge time of the sensor
Landscapes
- Electronic Switches (AREA)
- Lock And Its Accessories (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
【解決手段】ドアノブなどに設けられた被測定容量の値を電圧などに変換する変換回路からの出力が入力され、そのレベル変化を検出する低域通過フィルタ12および比較器13と、レベル変化時間を計測するタイマー14を備え、静電容量が一定時間以上変化した場合に、使用者に解錠の意志があるものとして検出信号V11を出力し、開錠を行う。
【選択図】図5
Description
(N3×T1=N2×T2)……(式4)
N3={(C2×R2)/(C1×R1)}×N2……(式5)
N4={(C3×R2)/(C1×R1)}×N2……(式6)
N5=[{(C3+C4)×R2}/(C1×R1)]×N2……(式7)
N=(N5−N4)={(C4×R2)/(C1×R1)}×N2……(式8)
2…変換回路
3…高域通過フィルタ
4…比較器
6…基準発振器
7、10…カウンター
9…発振器
11…データー保持回路
Claims (5)
- ドアハンドル内またはドアハンドルの近傍に設置された金属電極と前記金属電極の容量変化を電気的なパラメータに変換する変換回路と、前記電気的なパラメータのレベル変化を検出する判断回路と、前記レベル変化時間を計測する時定数回路を有し、一定時間以上の静電容量の変化の計測により施錠信号を出力することを特徴とする静電容量式施錠スイッチ。
- 静電容量のレベル変化およびレベル変化の保持時間の検出は、一定時間毎に記憶された変化前の周波数と、変化後の周波数とを比較して判断することを特徴とする請求項1記載の静電容量式施錠スイッチ。
- レベル変化を検出する判断回路において、レベル変化の傾きを検出する回路が用いられ、静電容量が非検出となった際に、検出可能となるまでの復帰時間を短縮する回路を有することを特徴とする請求項1記載の静電容量式施錠スイッチ。
- 静電容量のレベル変化の時間の検出は、変化開始を検出する回路および時定数回路により、レベル変化時間を検出することを特徴とする請求項1記載の静電容量式施錠スイッチ。
- 前記時定数回路の時定数を0.3〜1.5秒としたことを特徴とする請求項4記載の静電容量式施錠スイッチ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005221150A JP4687882B2 (ja) | 2005-07-29 | 2005-07-29 | 静電容量式施錠スイッチ |
US11/460,347 US20070023265A1 (en) | 2005-07-29 | 2006-07-27 | Capacitive lock switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005221150A JP4687882B2 (ja) | 2005-07-29 | 2005-07-29 | 静電容量式施錠スイッチ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007032217A true JP2007032217A (ja) | 2007-02-08 |
JP4687882B2 JP4687882B2 (ja) | 2011-05-25 |
Family
ID=37693072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005221150A Active JP4687882B2 (ja) | 2005-07-29 | 2005-07-29 | 静電容量式施錠スイッチ |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070023265A1 (ja) |
JP (1) | JP4687882B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009005259A (ja) * | 2007-06-25 | 2009-01-08 | Stanley Electric Co Ltd | 静電容量検出回路 |
JP2010275733A (ja) * | 2009-05-27 | 2010-12-09 | Sanwa Shutter Corp | セミオート回転ドアにおける駆動装置 |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8643469B2 (en) * | 2007-03-05 | 2014-02-04 | Kaba Ag | Access control system, and closing mechanism |
US20140077929A1 (en) * | 2012-03-08 | 2014-03-20 | Unikey Technologies, Inc. | Wireless access control system and related methods |
US8975903B2 (en) | 2011-06-09 | 2015-03-10 | Ford Global Technologies, Llc | Proximity switch having learned sensitivity and method therefor |
US8928336B2 (en) | 2011-06-09 | 2015-01-06 | Ford Global Technologies, Llc | Proximity switch having sensitivity control and method therefor |
US10004286B2 (en) | 2011-08-08 | 2018-06-26 | Ford Global Technologies, Llc | Glove having conductive ink and method of interacting with proximity sensor |
US9143126B2 (en) | 2011-09-22 | 2015-09-22 | Ford Global Technologies, Llc | Proximity switch having lockout control for controlling movable panel |
US10112556B2 (en) | 2011-11-03 | 2018-10-30 | Ford Global Technologies, Llc | Proximity switch having wrong touch adaptive learning and method |
US8994228B2 (en) | 2011-11-03 | 2015-03-31 | Ford Global Technologies, Llc | Proximity switch having wrong touch feedback |
US8878438B2 (en) | 2011-11-04 | 2014-11-04 | Ford Global Technologies, Llc | Lamp and proximity switch assembly and method |
US9568527B2 (en) | 2012-04-11 | 2017-02-14 | Ford Global Technologies, Llc | Proximity switch assembly and activation method having virtual button mode |
US9197206B2 (en) | 2012-04-11 | 2015-11-24 | Ford Global Technologies, Llc | Proximity switch having differential contact surface |
US9944237B2 (en) | 2012-04-11 | 2018-04-17 | Ford Global Technologies, Llc | Proximity switch assembly with signal drift rejection and method |
US9184745B2 (en) | 2012-04-11 | 2015-11-10 | Ford Global Technologies, Llc | Proximity switch assembly and method of sensing user input based on signal rate of change |
US9831870B2 (en) | 2012-04-11 | 2017-11-28 | Ford Global Technologies, Llc | Proximity switch assembly and method of tuning same |
US9065447B2 (en) | 2012-04-11 | 2015-06-23 | Ford Global Technologies, Llc | Proximity switch assembly and method having adaptive time delay |
US9287864B2 (en) | 2012-04-11 | 2016-03-15 | Ford Global Technologies, Llc | Proximity switch assembly and calibration method therefor |
US8933708B2 (en) | 2012-04-11 | 2015-01-13 | Ford Global Technologies, Llc | Proximity switch assembly and activation method with exploration mode |
US9219472B2 (en) | 2012-04-11 | 2015-12-22 | Ford Global Technologies, Llc | Proximity switch assembly and activation method using rate monitoring |
US9660644B2 (en) | 2012-04-11 | 2017-05-23 | Ford Global Technologies, Llc | Proximity switch assembly and activation method |
US9559688B2 (en) | 2012-04-11 | 2017-01-31 | Ford Global Technologies, Llc | Proximity switch assembly having pliable surface and depression |
US9531379B2 (en) | 2012-04-11 | 2016-12-27 | Ford Global Technologies, Llc | Proximity switch assembly having groove between adjacent proximity sensors |
US9520875B2 (en) | 2012-04-11 | 2016-12-13 | Ford Global Technologies, Llc | Pliable proximity switch assembly and activation method |
US9136840B2 (en) | 2012-05-17 | 2015-09-15 | Ford Global Technologies, Llc | Proximity switch assembly having dynamic tuned threshold |
US8981602B2 (en) | 2012-05-29 | 2015-03-17 | Ford Global Technologies, Llc | Proximity switch assembly having non-switch contact and method |
US9337832B2 (en) | 2012-06-06 | 2016-05-10 | Ford Global Technologies, Llc | Proximity switch and method of adjusting sensitivity therefor |
US9641172B2 (en) | 2012-06-27 | 2017-05-02 | Ford Global Technologies, Llc | Proximity switch assembly having varying size electrode fingers |
US8922340B2 (en) | 2012-09-11 | 2014-12-30 | Ford Global Technologies, Llc | Proximity switch based door latch release |
US8796575B2 (en) | 2012-10-31 | 2014-08-05 | Ford Global Technologies, Llc | Proximity switch assembly having ground layer |
US9311204B2 (en) | 2013-03-13 | 2016-04-12 | Ford Global Technologies, Llc | Proximity interface development system having replicator and method |
US10038443B2 (en) | 2014-10-20 | 2018-07-31 | Ford Global Technologies, Llc | Directional proximity switch assembly |
JP6139491B2 (ja) * | 2014-11-13 | 2017-05-31 | 本田技研工業株式会社 | スマートエントリシステム |
US9654103B2 (en) | 2015-03-18 | 2017-05-16 | Ford Global Technologies, Llc | Proximity switch assembly having haptic feedback and method |
US9548733B2 (en) | 2015-05-20 | 2017-01-17 | Ford Global Technologies, Llc | Proximity sensor assembly having interleaved electrode configuration |
US20240227731A9 (en) * | 2022-10-19 | 2024-07-11 | Allyson McCollum | Vehicular entry systems and related methods |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100681A (ja) * | 1985-10-28 | 1987-05-11 | Honda Motor Co Ltd | 静電容量型近接検出装置 |
JP2003221949A (ja) * | 2001-11-20 | 2003-08-08 | Honda Lock Mfg Co Ltd | 車両用ドアのハンドル装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353056A (en) * | 1980-06-05 | 1982-10-05 | Siemens Corporation | Capacitive fingerprint sensor |
FR2666183B1 (fr) * | 1990-08-23 | 1992-11-06 | Bull Sa | Circuit a constante de temps reglable et application a un circuit a retard reglable. |
US6292181B1 (en) * | 1994-09-02 | 2001-09-18 | Nec Corporation | Structure and method for controlling a host computer using a remote hand-held interface device |
US5790107A (en) * | 1995-06-07 | 1998-08-04 | Logitech, Inc. | Touch sensing method and apparatus |
JP3827450B2 (ja) * | 1998-08-18 | 2006-09-27 | 富士通株式会社 | 光走査型タッチパネル |
JP2001241942A (ja) * | 2000-02-25 | 2001-09-07 | Alps Electric Co Ltd | 回転角検出装置 |
JP3614789B2 (ja) * | 2001-03-28 | 2005-01-26 | 株式会社ホンダロック | 車両のアウトハンドル装置 |
JP2004178584A (ja) * | 2002-11-26 | 2004-06-24 | Asulab Sa | 機能、装置、又は所定の場所にアクセスするためのタッチスクリーンによるセキュリティコードの入力方法、及びその方法を実行するためのデバイス |
JP4098215B2 (ja) * | 2003-10-29 | 2008-06-11 | アイシン精機株式会社 | 車両用人体検出装置 |
US7250746B2 (en) * | 2004-03-31 | 2007-07-31 | Matsushita Electric Industrial Co., Ltd. | Current mode switching regulator with predetermined on time |
-
2005
- 2005-07-29 JP JP2005221150A patent/JP4687882B2/ja active Active
-
2006
- 2006-07-27 US US11/460,347 patent/US20070023265A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100681A (ja) * | 1985-10-28 | 1987-05-11 | Honda Motor Co Ltd | 静電容量型近接検出装置 |
JP2003221949A (ja) * | 2001-11-20 | 2003-08-08 | Honda Lock Mfg Co Ltd | 車両用ドアのハンドル装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009005259A (ja) * | 2007-06-25 | 2009-01-08 | Stanley Electric Co Ltd | 静電容量検出回路 |
JP2010275733A (ja) * | 2009-05-27 | 2010-12-09 | Sanwa Shutter Corp | セミオート回転ドアにおける駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4687882B2 (ja) | 2011-05-25 |
US20070023265A1 (en) | 2007-02-01 |
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