CN101131771A - Vehicle mounted keyless door guard system - Google Patents
Vehicle mounted keyless door guard system Download PDFInfo
- Publication number
- CN101131771A CN101131771A CNA2007101236469A CN200710123646A CN101131771A CN 101131771 A CN101131771 A CN 101131771A CN A2007101236469 A CNA2007101236469 A CN A2007101236469A CN 200710123646 A CN200710123646 A CN 200710123646A CN 101131771 A CN101131771 A CN 101131771A
- Authority
- CN
- China
- Prior art keywords
- base station
- car
- electric field
- station unit
- vehicle mounted
- 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
Images
Abstract
This invention relates to car no key door prohibit system, includes report controller and the base station cell set in the car, the said base station cell includes low frequency send module, high frequency incept module and the capacity control circuit linked the said two, which is used to incept and send the signal and control the car key to open and close; the said report controller includes low frequency incept module used to incept the low frequency information sent by the base station cell, the coder stored the ID information, the high frequency send module which is used to send high frequency code information to the base station cell, the said door prohibit also includes the electric field induce sensor set in the car doorknob, the said control circuit of the base cell links with the output end of the said sensor. Because it adopt the electric field induce sensor replace the minitype switch in the exist technology, it does not need to change the car doorknob or destroy the structure of the car doorknob when fixing, the system fixing is simple, it is applicable for the after-fix market.
Description
Technical field
The present invention relates to automobile-used gate control system, more particularly, relate to a kind of vehicle mounted keyless door guard system that adopts the electric field induction technology.
Background technology
Remote-wireless gate control system (Remote Keyless Entry is called for short RKE) is because cost and technical threshold are low, in occupation of onboard remote controller market for many years.
At present, the passive no key gate inhibition of a kind of heldfree type (PKE) becomes vehicle remote does not just rapidly have the main flow that the key gate inhibition uses, and becomes the general option of new model.This method need not to lock or open car door with hand by the transmitter button, as long as have just vehicles passing in and out easily of an effective telepilot.
This heldfree type PKE is equipped with microswitch usually in car door, when the portable door handle of car owner, trigger microswitch, and the base station unit of installing in the pilothouse (Base Station) will send the low frequency confirmation.Telepilot has the RFID function, if telepilot is received confirmation, it sends high frequency at once and returns sign indicating number to base station unit, and base station unit is opened car door lock after verifying back that sign indicating number is correct.Whole two-way confirmation process approximately continues about 50 milliseconds.
Because the low frequency signals decay of 125Khz is very big, under the condition that transmits and receives the antenna size qualification, remote control distance has only about two meters, if consider the screening effect of car crust, distance may be shorter.So should trying one's best, the installation site of base station unit only is equipped with one near car door, each car.Increase emissive power simultaneously, its transient working electric current can reach about 1A.Therefore, in order to reduce power consumption, total system adopts battery saving mode.Only after the car owner triggered door handle, base station unit just began to send low frequency signal, postponed several seconds then, entered battery saving mode once more.When car door is opened once more, represent that the car owner has prepared to exit automobile, this moment, base station unit began to send continuously confirmation signal, and telepilot judges that according to receiving the signal power car owner leaves the scope of automobile.If do not receive low frequency signal fully, telepilot will send the high frequency signal of locking a door, and the base station unit time-delay enters park mode after several seconds once more.This technology when providing convenience for the car owner, can also prevent that the car owner from getting off after, situation that forgetting locks door causes any property loss takes place.
But this passive wireless gate control system scheme need partly increase microswitch at car door.And the installation of microswitch will inevitably destroy the door handle structure, perhaps needs to adopt the door handle with vehicle color and structure matching, therefore is unfavorable for the popularization in dress market behind the automobile.
Summary of the invention
The technical problem to be solved in the present invention is, can destroy the door handle structure when behind microswitch, adorning or need to change the defective of door handle, a kind of vehicle mounted keyless door guard system that car door and handle is not had the employing electric field induction technology of influence is provided at the above-mentioned wireless entrance guard system of prior art.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of vehicle mounted keyless door guard system, comprise telepilot and be arranged on the interior base station unit of car, described base station unit comprises low frequencies module, high frequency receiver module and the intelligence control circuit that links to each other with both, is used for sending out/collect mail number and control car door lock ON/OFF; Described telepilot comprise the low frequency signal that is used to receive the base station unit emission the low frequency receiver module, store the scrambler of id information and be used for high-frequency emission module to base station unit emission high-frequency coding signal, described gate control system also comprises the electric field induction sensor that is installed on the door handle, and the control circuit of described base station unit is communicated by letter with the output terminal of described sensor and linked to each other.
In vehicle mounted keyless door guard system of the present invention, described telepilot is provided with the car door on/off button, and this button links to each other with scrambler by input interface.
In vehicle mounted keyless door guard system of the present invention, described electric field induction sensor comprises induction electrode and the electric field detection chip that links to each other with induction electrode by shielding line, described induction electrode is installed in the inboard of door handle, and the trigger pip of electric field detection chip output is sent to base station unit by wired mode.
In vehicle mounted keyless door guard system of the present invention, described induction electrode comprise substrate and the substrate that is laid on electric conductor.
In vehicle mounted keyless door guard system of the present invention, described electric conductor adopts copper foil material, and described substrate adopts flexible printed board, and described shielding line adopts the 26AWG shielding line.
Implement vehicle mounted keyless door guard system of the present invention, has following beneficial effect: owing to adopted the electric field induction sensor to replace microswitch of the prior art, the structure that need not to change door handle during installation or destroy door handle, system installs simple, is highly suitable for dress market, back.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the theory diagram of vehicle mounted keyless door guard system of the present invention;
Fig. 2 is the structural representation according to the base station unit of the embodiment of the invention;
Fig. 3 A is the structural representation of telepilot according to an embodiment of the invention;
Fig. 3 B is the structural representation of telepilot according to another embodiment of the present invention;
Fig. 4 is the circuit theory diagrams according to the electric field induction sensor of the embodiment of the invention.
Embodiment
As shown in Figure 1, vehicle mounted keyless door guard system of the present invention comprises base station unit, telepilot and electric field induction sensor, and wherein the electric field induction sensor comprises two induction electrode P1, P2 and coupled electric field detection chip.
As shown in Figure 2, base station unit comprises low frequencies module, high frequency receiver module and the intelligence control circuit that links to each other with both.Wherein the low frequencies module comprises low frequencies antenna LF-T, and the high frequency receiver module comprises high frequency receiving antenna HF-R (referring to Fig. 1).Intelligence control circuit is also communicated by letter with door lock with the electric field induction sensor and is linked to each other, with the output signal of receiving sensor with to door lock emission ON/OFF control signal.
As shown in Figure 3A, in one embodiment of the invention, telepilot comprises low frequency receiver module, scrambler and high-frequency emission module.Its medium and low frequency receiver module comprises low frequency receiving antenna LF-R, and the high-frequency emission module comprises high-frequency emission antenna HF-T (referring to Fig. 1).
In another embodiment of the present invention, shown in Fig. 3 B, scrambler also links to each other with button, and button can comprise the car door on/off button.In this embodiment, the decoder module in the intelligence control circuit of cooperation base station unit, this system also has the function of remote control ON/OFF car door lock except the function with the passive keyless door guard system of heldfree type.
In the keyless door guard system among the present invention, base station unit is installed in the car.One deck induction electrode P1, P2 are sticked in the door handle inboard, and the electric field detection chip is installed in the car, and by shielding line simulating signal are passed to the electric field detection chip.
In application process, behind the close induction electrode of car owner's finger, the electric field detection chip compares simulating signal and threshold value, in case find to exceed, promptly launch trigger pip S1 to the intelligence control circuit of base station unit, trigger base station unit and send low frequency signal (as frequency 125Khz), to launch the ID confirmation to telepilot by low frequencies module and antenna LF-T thereof.After the low frequency receiving antenna LF-R of telepilot receives the ID confirmation, signal that has id information of scrambler output, and return coded signal by the high frequency that high-frequency emission module and antenna HF-T thereof outwards send band ID signal, the RF signal of 315Mhz or 433Mhz for example.Base station unit receives after this high frequency returns coded signal by high frequency receiver module and antenna HF-R thereof, carries out the ID checking, and if the verification passes, intelligence control circuit then sends the control signal of unblanking to car door lock.
Native system adopts highly sensitive electric field detection chip, and the electric conductor of electrode can adopt materials such as Copper Foil, silver-plated or carbon film.Substrate can adopt CM-1, FR4 or flexible printed circuit.Be mounted on the inboard of door handle preferably for the ease of electrode, the substrate of electrode adopts flexible printed circuit, and electric conductor adopts copper foil material.Two 26AWG shielding lines are adopted in binding between electrode and the electric field detection chip.
Do not have electric field in the Nature nowhere, it can see through almost any electrolyte, and as glass, plastics, pottery, wood etc., the maximum ga(u)ge of its detection is 5cm, therefore, even the car owner puts on thick gloves, also can sense the approaching of human body.
Because electric field detection chip and base station unit communication data in the electric-field sensor are very simple, simultaneously in order to reduce system cost, the high-low level by automobile between them carries out communication, and promptly automobile 12V high level represents that the car owner is near car door.
Fig. 4 is this circuit block diagram according to the electric field induction sensor of inventive embodiments.
Wherein U1 is MCU, and model is selected MC908HSQT for use, finishes the ON/OFF control function to car door, and U2 is that electric field detects IC, and model is selected MC33794 for use, finishes car door because of the approaching measuring ability that causes electric field change amount of human body.Comparer U3A, U3B select LM358 for use, can carry out the threshold values setting to detected human-induced signal, improve detection sensitivity.
POWER is the storage battery power supply power supply (12VDC) from automobile, through behind the amplitude limit on capacitor C 1 generations+12VDC, the P12 pin of supplying with P11 pin, the U2 of U2 produces and output VCC (+5VDC) power supply, supply comparer U3A, U3B.The P10 pin of U2 produce simultaneously VDD (+5V) supply with U1.The P8 of U1, P9 output A, B signal are used for the opening/closing car door.
Claims (5)
1. vehicle mounted keyless door guard system comprises telepilot and is arranged on base station unit in the car that described base station unit comprises low frequencies module, high frequency receiver module and the intelligence control circuit that links to each other with both, is used for sending out/collect mail number and control car door lock ON/OFF; Described telepilot comprise the low frequency signal that is used to receive the base station unit emission the low frequency receiver module, store the scrambler of id information and be used for high-frequency emission module to base station unit emission high-frequency coding signal, it is characterized in that, described gate control system also comprises the electric field induction sensor that is installed on the door handle, and the control circuit of described base station unit is communicated by letter with the output terminal of described sensor and linked to each other.
2. vehicle mounted keyless door guard system according to claim 1 is characterized in that described telepilot is provided with the car door on/off button, and this button links to each other with scrambler by input interface.
3. vehicle mounted keyless door guard system according to claim 1 and 2, it is characterized in that, described electric field induction sensor comprises induction electrode and the electric field detection chip that links to each other with induction electrode by shielding line, described induction electrode is installed in the inboard of door handle, and the trigger pip of electric field detection chip output is sent to base station unit by wired mode.
4. vehicle mounted keyless door guard system according to claim 3 is characterized in that, described induction electrode comprise substrate and the substrate that is laid on electric conductor.
5. vehicle mounted keyless door guard system according to claim 4 is characterized in that, described electric conductor adopts copper foil material, and described substrate adopts flexible printed board, and described shielding line adopts the 26AWG shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101236469A CN101131771A (en) | 2007-09-28 | 2007-09-28 | Vehicle mounted keyless door guard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101236469A CN101131771A (en) | 2007-09-28 | 2007-09-28 | Vehicle mounted keyless door guard system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101131771A true CN101131771A (en) | 2008-02-27 |
Family
ID=39129030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101236469A Pending CN101131771A (en) | 2007-09-28 | 2007-09-28 | Vehicle mounted keyless door guard system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131771A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219011A (en) * | 2010-04-14 | 2011-10-19 | 深圳市著牌实业有限公司 | Passive wireless entry automobile body control system and control method |
| CN102400605A (en) * | 2011-11-16 | 2012-04-04 | 深圳市警报电子科技有限公司 | Inductive automobile entering way sent by frequency, power and code |
| CN102673515A (en) * | 2012-05-23 | 2012-09-19 | 杨涛 | RFID (Radio Frequency Identification Device)-based relay-attack-resisting passive keyless unlocking and starting method |
| CN103229215A (en) * | 2010-12-09 | 2013-07-31 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Access control method for motor vehicles |
| CN104468687A (en) * | 2013-09-13 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Methods and systems for communicating between a vehicle and a remote device |
| CN104691501A (en) * | 2013-12-10 | 2015-06-10 | 镁骅科技有限公司 | Induction opening device for vehicle trunk door |
| CN105365773A (en) * | 2014-08-30 | 2016-03-02 | 上海汽车集团股份有限公司 | Vehicle keyless entry method and system |
| CN105976468A (en) * | 2016-05-13 | 2016-09-28 | 广东触联科技有限公司 | Method and device for intelligently unlocking digital door lock |
| CN106815889A (en) * | 2015-12-01 | 2017-06-09 | 大陆汽车电子(长春)有限公司 | Crossing management method and system based on keyless access system |
| CN108297827A (en) * | 2018-03-23 | 2018-07-20 | 深圳市维邦云计算技术发展有限公司 | A kind of circuit and method of judgement vehicle remote control device position |
-
2007
- 2007-09-28 CN CNA2007101236469A patent/CN101131771A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219011A (en) * | 2010-04-14 | 2011-10-19 | 深圳市著牌实业有限公司 | Passive wireless entry automobile body control system and control method |
| CN103229215A (en) * | 2010-12-09 | 2013-07-31 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Access control method for motor vehicles |
| CN102400605A (en) * | 2011-11-16 | 2012-04-04 | 深圳市警报电子科技有限公司 | Inductive automobile entering way sent by frequency, power and code |
| CN102673515A (en) * | 2012-05-23 | 2012-09-19 | 杨涛 | RFID (Radio Frequency Identification Device)-based relay-attack-resisting passive keyless unlocking and starting method |
| CN102673515B (en) * | 2012-05-23 | 2016-08-31 | 杨涛 | The passive of anti-relay attack based on RFID is unblanked and startup method without key |
| CN104468687B (en) * | 2013-09-13 | 2018-08-17 | 通用汽车环球科技运作有限责任公司 | Method and system for being communicated between vehicle and remote equipment |
| CN104468687A (en) * | 2013-09-13 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Methods and systems for communicating between a vehicle and a remote device |
| CN104691501A (en) * | 2013-12-10 | 2015-06-10 | 镁骅科技有限公司 | Induction opening device for vehicle trunk door |
| CN105365773A (en) * | 2014-08-30 | 2016-03-02 | 上海汽车集团股份有限公司 | Vehicle keyless entry method and system |
| CN105365773B (en) * | 2014-08-30 | 2017-12-22 | 上海汽车集团股份有限公司 | Vehicle key-free access method and system |
| CN106815889A (en) * | 2015-12-01 | 2017-06-09 | 大陆汽车电子(长春)有限公司 | Crossing management method and system based on keyless access system |
| CN105976468A (en) * | 2016-05-13 | 2016-09-28 | 广东触联科技有限公司 | Method and device for intelligently unlocking digital door lock |
| CN105976468B (en) * | 2016-05-13 | 2019-06-07 | 广东触联科技有限公司 | A kind of intelligent unlocking method and apparatus of digital door lock |
| CN108297827A (en) * | 2018-03-23 | 2018-07-20 | 深圳市维邦云计算技术发展有限公司 | A kind of circuit and method of judgement vehicle remote control device position |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101131771A (en) | Vehicle mounted keyless door guard system | |
| US6489883B1 (en) | Non-contact data carrier system | |
| CN100476153C (en) | Object sensor and controller | |
| US4763121A (en) | Keyless entry system for automatically operating automotive door locking devices without manual operation | |
| US4973958A (en) | Keyless entry system for automotive devices antenna device allowing low power radio signal communication | |
| CN111385000B (en) | System and method for RF backscatter communications for vehicle remote control | |
| US5682032A (en) | Capacitively coupled identity verification and escort memory apparatus | |
| US4688036A (en) | Keyless entry system for automotive vehicle with power consumption saving feature | |
| US20050162259A1 (en) | Vehicular remote control system and tire pressure monitoring system | |
| CN103982072B (en) | Intelligent carport lock control system | |
| CN202854922U (en) | Parking ground lock device capable of being opened in automatic remote-control manner and closed automatically after leaving of vehicle through fingerprint authentication | |
| CN111881701A (en) | Vehicle identity recognition control system based on NFC communication | |
| CN106408688A (en) | Improvement of identity code recognition in polling recognition | |
| CN202422242U (en) | Entrance guard identification system based on RFID (Radio Frequency Identification) | |
| CN201544917U (en) | Fingerprint anti-theft starting and passive keyless entry (PKE) double anti-theft alarm system | |
| CN207403698U (en) | A kind of unlocked by fingerprint control device | |
| CN204623405U (en) | A kind of remote-control key | |
| CN201765661U (en) | Bicycle theft prevention system based on RFID dual-card identification | |
| CN202686269U (en) | Radio frequency identification (RFID) based automobile anti-theft system | |
| CN107719481B (en) | A kind of induction trigger-type automobile trunk open method and device | |
| CN202711353U (en) | Fingerprint-identification-based controlling system of vehicle driving-in and driving-out-of gate | |
| CN205297054U (en) | Intelligent lock | |
| CN201901107U (en) | Passive keyless entry anti-theft system based on automobile bus control | |
| CN203005361U (en) | AM335x-based intelligent automobile anti-theft system | |
| JPH11131884A (en) | Non-contact data carrier system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080227 |