CN101447099B - No-key bidirectional inductive theft-proof system and signal processing method thereof - Google Patents
No-key bidirectional inductive theft-proof system and signal processing method thereof Download PDFInfo
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Abstract
The invention relates to a no-key bidirectional inductive theft-proof system and a signal processing method thereof; wherein, the system comprises an entrance-guarding mainframe, a controller, a CUP, a high-frequency receiving and emitting processing circuit and a remote control receiving and emitting unit; wherein, the controller comprises a remote switch circuit which is used for a user to carry out switch setting manually; the CPU gains the information of the switch setting, generates a first signal containing the information and processes the information from the entrance-guarding mainframe; the high-frequency receiving and emitting processing circuit carries out information interaction with the entrance-guarding mainframe by a second link, transits a prearranged second signal, simultaneously transmits the first signal to the remote control receiving and emitting unit and processes the information from the entrance-guarding mainframe; the remote control receiving and emitting unit establishes a first link between the entrance-guarding mainframes and carries out information interaction so as to transmit the first signal; the entrance-guarding mainframe induces whether the second signal switch setting information contained in the first signal as the basis to set or remove the theft-proof function. The system and the method apply the scientific bidirectional signal transmission method to realize safer functions.
Description
Technical field
The present invention relates to the antitheft field of public safety, relate in particular to the relevant no-key bidirectional inductive theft-proof system of motor vehicles, and the signal processing method of this system.
Background technology
Be example with the automobile, the development of intelligent entrance guard mainly contains two stages at present.
Use comparatively and to be RKE (Remote Keyless Entry, remote keyless gate inhibition) generally, this gate control system is similar to common telecontrol engineering.Gate inhibition's main frame is installed in automobile, the car owner then holds telepilot, be connected by wireless signal between telepilot and the gate inhibition's main frame, when the car owner walks close to automobile, in the time of also namely in the efficient communication scope of the wireless signal of gate inhibition's main frame, shift knob by this telepilot of manual control sends a signal to this gate inhibition's main frame, but gate inhibition's main frame just the conducting interlock circuit open car door.Otherwise, by the shift knob of manipulation telepilot, thereby can make gate inhibition's Host Shutdown car door reach antitheft purpose.
Another kind of gate inhibition is PKE (Passive Keyless Entry, the passive keyless gate inhibition, sometimes also be called for short no key burglary-resisting system), widespread use in high-grade car at present, its principle of work is: telepilot sends a signal to gate inhibition's main frame in the car for a long time, gate inhibition's main frame is determined the distance of telepilot according to this signal, when telepilot leaves this car and surpasses certain distance as 2 meters, main frame can't detect the signal of this telepilot, thereby setting anti-theft state, and when telepilot near this car and when carrying out in the certain limit, then the signal to telepilot carries out authentication verification, determines whether to belong to validated user, if, then automatically terminate the anti-theft state of this car, make this car realize the process of intelligentized locking and unlatching.More intelligentized, also can realize the start-up operation of this car by operating a button on this telepilot, whole process need not key and participates in.Present this product is massesization just more and more, have undoubtedly to replace the trend that RKE becomes main flow.
In present PKE, signal cooperation mode between telepilot and the gate inhibition's main frame sends a signal to further processing of gate inhibition's main frame for a long time by telepilot and realizes, such cooperation mode makes that to lack signal each other mutual, unidirectional signalling formula also can cause some inconvenience, when both communications owing to a certain side's circuit reason when not smooth, can't judge that what person breaks down, more can't notify mutually etc.In addition, the one way signal transmission obviously should not become the only option of automobile gate control system.
In addition, among the automobile gate inhibition, often need remote intelligent remote manual control and intelligent-induction closely controlled and combine, the former requires distance more far away more good in theory, but the just powerful signal emission of inevitable requirement thereupon, the latter then only needs less power to realize.At this moment the phenomenon that contradiction just occurred, if namely the both uses high-powerly, then intelligent-induction increases apart from meeting, just telepilot can make the car owner open automatically in larger distance, antitheft effect reduces even performs practically no function; If the both uses miniwatt, just remote control distance reduces so.How to overcome this is technology barrier general in this area to contradiction always.
Summary of the invention
One object of the present invention is to provide a kind of no-key bidirectional inductive theft-proof system, to solve its medium and long distance remote manual control and the contradiction between two kinds of technology essential factors of intelligent-induction closely, to improve the intelligent degree of system.
Another object of the present invention is to provide and the corresponding signal processing method of above-mentioned no-key bidirectional inductive theft-proof system.
For realizing this purpose, the present invention takes following technical scheme:
A kind of no-key bidirectional inductive theft-proof system of the present invention comprises the gate inhibition's main frame that is installed in the car and the controller that is electrically connected with this gate inhibition's main frame with wireless mode, and described controller comprises:
Remote control switching circuit provides operation push-button manually to carry out the switch setting for the user;
Central processing unit, the information of obtaining this switch setting produces first signal that comprises this information, and the information from gate inhibition's main frame is handled in decoding;
High frequency transmitting-receiving treatment circuit carries out information interaction to transmit default secondary signal by second link and described gate inhibition's main frame, transmits described first signal simultaneously to described remote control Transmit-Receive Unit, and handles the information from gate inhibition's main frame;
The remote control Transmit-Receive Unit is set up first link and is carried out information interaction to transmit described first signal between high frequency transmitting-receiving treatment circuit and described gate inhibition's main frame;
Described gate inhibition's main frame is foundation with the induction secondary signal whether or with the switch setting information that first signal is comprised, and sets or remove its anti-theft feature.
This system also comprises Alarm Unit, itself and central processing unit electrically connect, central processing unit sends to this Alarm Unit with the signal interactive information between this controller and the gate inhibition's main frame with signal form, and Alarm Unit is expressed this signal with sound, light, one of arbitrary form or its combination of shaking.
This Alarm Unit comprises:
Voicefrequency circuit is used for controlled generation sound effect;
Vibrating circuit is used for controlled generation vibrating effect;
Display circuit is used for controlled generation light and shows effect.
The frequency range that described high frequency transmitting-receiving treatment circuit adopts is between the 315MHz to 786MHz.
This system comprises a storage unit, is used for the enciphered message between memory controller and the gate inhibition's main frame.
Described remote control Transmit-Receive Unit comprises:
Antenna is used for emission or receives signal between controller and the gate inhibition's main frame;
The emission amplifying circuit is used for amplification from the signal of described high frequency transmitting-receiving treatment circuit and transfers to this antenna launching;
Receive amplifying circuit, be used for amplification from the signal of described antenna and transfer to this high frequency transmitting-receiving treatment circuit.
The signal processing method of a kind of no-key bidirectional inductive theft-proof system of the present invention for the treatment of the controller of this burglary-resisting system and the signal cooperation relation between gate inhibition's main frame, is characterized in that this method comprises two-part processing procedure:
One, provide the operation push-button that is preset on the controller to carry out the switch setting for the user, when the user operates it, produce a pair of first signal that result's low frequency should be set, send to described gate inhibition's main frame to set or to remove its anti-theft feature by first link, controller carries out information interaction by this first link and gate inhibition's main frame;
They are two years old, one of controller or gate inhibition's main frame are any or both secondary signals by second chain road direction the other side radiation high frequency simultaneously, gate inhibition's main frame detects less than the secondary signal of this controller or detects when less than controller the secondary signal of gate inhibition's main frame self being made signal feedback, setting enters anti-theft state, otherwise removes this anti-theft state.
In described process two, when controller detects less than the secondary signal of this gate inhibition's main frame or detects when less than gate inhibition's main frame the secondary signal of controller self being made signal feedback, alarm with sound, light, shake one of arbitrary form or its combination.
In described process two, controller obtains or receives the status information of gate inhibition's main frame and alarm according to this through second link.
The frequency range that described secondary signal adopts is between the 315MHz to 768MHz.
Compared with prior art, the present invention has following advantage:
At first, communicate by letter respectively with two links between controller and the gate inhibition by high frequency transmitting-receiving treatment circuit, both can adopt low-power realization intelligent-induction between the two to set or to remove anti-theft state, can realize that remote remote manual control to set or to remove anti-theft state, makes these two kinds of functions no longer become contradiction by adopting higher-wattage again;
Secondly, the communication mode of two-way interactive between controller and the gate inhibition's main frame makes the duty that can detect mutually each other between the two, thereby can report the possessor, and this duty is made automatic reaction etc., has improved intelligent degree and reliability.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present invention;
Fig. 2 is the three-dimensional structure diagram in kind of controller of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with the drawings and specific embodiments:
See also Fig. 1, no-key bidirectional inductive theft-proof system of the present invention is made of controller and gate inhibition's main frame 8 two parts, wherein gate inhibition's main frame 8 is installed on the automobile, anti-theft feature to automobile carries out integrated management, comprise car door control, ignition trigger control, burglar alarm etc., and other similarly or relevant function.Be more common in domestic and international patent database about the technical scheme of burglary-resisting system itself, the corresponding function of its realization also has been that associated user and those skilled in the art are known, because main improvements of the present invention concentrate on controller, and the communication mode of controller and gate inhibition's main frame 8, thereby, gate inhibition's main frame 8 other well-known characteristic are given unnecessary details not all right.
Except gate inhibition's main frame 8, all the other are the ingredient of controller among Fig. 1, and this controller comprises remote control switching circuit 2, central processing unit 1, storage unit 6, high frequency transmitting-receiving treatment circuit 3, remote control Transmit-Receive Unit 4 and Alarm Unit 5.
Described remote control switching circuit 2, electrically connect with central processing unit 1, as popular product on the market, operation push-buttons 21 such as " ON/OFF ", " searching ", " setting " are provided, 22,23 (consulting Fig. 2), perhaps " ON/OFF " key can be separated into " opening " and " pass " two buttons, arranging of these buttons is very flexible, adaptive design is carried out in visual concrete functional requirement in remote control switching circuit 2, but the button that wherein relates to switch is the essential elements that constitutes this controller.As for " searching ", be used for to send signal and make automobile send the sound and luminous reaching the purpose of searching vehicle, and " settings ", for the various parameters that each button of controller is set, suchlike button then is nonessential.No matter the quantity how much of the operation push-button that remote control switching circuit 2 has after accepting user's operation, all can produce signal and do further processing to send to described central processing unit 1.
Central processing unit 1 can be differentiated according to the signal that remote control switching circuit 2 sends, and and then produce unlike signal corresponding to the different operating button according to differentiating the result, such signal will be sent to gate inhibition's main frame 8 and use.Easy for what illustrate, corresponding described " ON/OFF " operation push-button and the signal that produces is called first signal wherein, other similarly as operation push-button such as " searching ", " setting " as described in the correspondence and the subsequent transmission process of the signal that produces also with as described in first signal identical.
Described high frequency transmitting-receiving treatment circuit 3, it is controlled by this central processing unit 1, and central processing unit 1 is by sending 3 emissions of signal controlling high frequency transmitting-receiving treatment circuit, receiving the constant amplitude high-frequency signal, in like manner, easy for what describe, this constant amplitude high-frequency signal is called secondary signal.Central processing unit 1 also passes to this high frequency transmitting-receiving treatment circuit 3 with described first signal that is produced by remote control switching circuit 2 effects, high frequency transmitting-receiving treatment circuit 3 this first signal of deducing then also is about to this first signal and exports to described remote control Transmit-Receive Unit 4 with self form by output port.The frequency range that this high frequency transmitting-receiving treatment circuit 3 adopts suits between 315MHz to 768MHz.
Described remote control Transmit-Receive Unit 4, comprise antenna 43, emission amplifying circuit 41 and reception amplifying circuit 42, described first signal from this high frequency transmitting-receiving treatment circuit 3 at first carries out the signal amplification through emission amplifying circuit 41, phase modulation, filtering operations such as (being optional step), then pass through this antenna 43 to aerial radiation, in effective range, just signal can be transferred to corresponding receiving circuit (not shown) in described gate inhibition's main frame 8, finish the transmission course of first signal from controller to this gate inhibition's main frame 8, gate inhibition's main frame 8 and then by identifying the configuration information that this first signal comprises, as " opening " or " pass " two kinds of different conditions, carry out setting or the releasing of anti-theft feature accordingly, make car door opening or close.
Except with above-mentioned from controller to gate inhibition's main frame 8 the transmission first signal the forward transmission course, described gate inhibition's main frame 8 is also given this controller by its radiating circuit (not shown) through aerial reverse transmission signal, it is mainly used in transmitting gate inhibition's main frame 8 current state informations, perhaps as to the information of the feedback of described first signal etc.Behind the antenna 43 of this type of information via controller, after entering described reception amplifying circuit 42 and carrying out filtering, phase modulation and amplification (being optional step) etc. and handle, arrive central processing units 1 through high frequency transmitting-receiving treatment circuit 3, central processing unit 1 and then move to notify the user according to this category information control Alarm Unit 5.
Hence one can see that, by the remote control Transmit-Receive Unit 4 of controller and the interactive operation of described gate inhibition's main frame 8, set up first link 71 between the two, first link, 71 assisting users are finished remote manual control to set or to remove the function of anti-theft state, and, also ensured the mutual monitoring between controller and the gate inhibition's main frame 8.
In order to realize the intelligent-induction function between controller and the gate inhibition's main frame 8, between controller and gate inhibition's main frame 8, also there is second link 72, the secondary signal that the high frequency transmitting-receiving treatment circuit 3 of aforementioned controller produces is carried out alternately with gate inhibition's main frame 8 through this second link 72, in like manner, gate inhibition's main frame 8 also is provided with corresponding circuit (not shown) for the treatment of this secondary signal.
These panel heights secondary signal frequently is from aerial radiation, when this signal enters 8 scopes that can receive of gate inhibition's main frame as 2 meters, after this gate inhibition's main frame 8 recognizes this signal, just can remove the setting to anti-theft feature, and when gate inhibition's main frame 8 is responded to less than this signal, then with the automatic setting anti-theft feature, make automobile enter lock-out state, to reach antitheft purpose.In like manner, gate inhibition's main frame 8 also can be along the relevant monitor message of second link, 72 reverse transmissions, the status information high frequency transmitting-receiving treatment circuit 3 to described controller, with as through first link 71 and carry out information interaction between the controller.
No matter carry out the emission of described first signal and secondary signal by high frequency transmitting-receiving treatment circuit 3, under the prerequisite of considering safety factor, all need the signal that transmits is encrypted processing, thereby, described central processing unit 1 electrically connects with described storage unit 6, this storage unit 6 is used for the relevant enciphered message of storage, central processing unit 1 is encrypted processing according to this enciphered message to first signal and secondary signal, when arriving gate inhibition's main frame 8, then by gate inhibition's main frame 8 it is decrypted, authentication, processing such as checking finally reach the purpose of this gate inhibition's main frame 8 of controller function that only allows to have the validated user identity.
Secondary signal by these high frequency transmitting-receiving treatment circuit 3 transmission, have advantages such as transfer efficiency height, anti-interference be low, can guarantee the sensitivity induction between controller and the gate inhibition's main frame 8, and can but the induction range of this secondary signal be constrained in the short distance by using lower-wattage, can guarantee like this car owner near the time gate inhibition main frame 8 automatically terminate locking, automatic setting anti-theft feature then in the time of outside car owner's visual line of sight.And first signal that transmits by this remote control Transmit-Receive Unit 4, then have by strengthening the characteristics that power strengthens transmission range, the user can adopt controller to communicate with gate inhibition's main frame 8 in as 3 kilometers scope in larger distance, thereby reaches the purpose of real-time this automobile of monitoring.
This signal is carried out the design of bidirectional inductive, also will make controller have the function of real-time monitoring in as 3 kilometers in effective range, can understand 8 signal transmitted of gate inhibition's main frames by described Alarm Unit 5.
Described Alarm Unit 5, be controlled by described central processing unit 1, control signal to central processing unit 1 responds, the control signal of central processing unit 1 then is mainly derived from from the reading of the signal of gate inhibition's main frame 8, and the response forms of Alarm Unit 5 can be sound, light, center of percussion any one or combination in any.
Particularly, this Alarm Unit 5 comprises voicefrequency circuit 51, display circuit 52 and vibrating circuit 53, and direct and central processing unit 1 electrically connects respectively, is respectively applied to realize prompting effects such as the sound, light show, vibration.The present invention proposes the following way of realization:
The kind that described voicefrequency circuit 51 is alarmed as required by central processing unit 1 is transferred audio file to the voicefrequency circuit 51 that is pre-stored in accordingly in the storage unit 6 and is carried out play-overing after the power amplification, perhaps, central processing unit 1 directly produces the signal of playing for voicefrequency circuit 51 amplifications according to actual needs and gives this voicefrequency circuit 51 etc.
Described display circuit 52 can adopt known electronic equipment or components and parts such as LCDs (LCD), LED, OLED, TFT, use programmed logic control display circuit 52 to carry out different demonstrations to make the different status information of User Recognition or monitor message by central processing unit 1, as when adopting LCD, then the user can obtain in the mode of literal or image more intuitively, data representation accurately.
The principle of described vibrating circuit 53 generally only plays the purpose of call user's attention as voicefrequency circuit 51 for the control signal that receives central processing unit 1.
In fact the mode of above-mentioned various alarms itself be more common in known technology, and the application in the product of market is also comparatively general, therefore to its not all right giving unnecessary details.Ingenious part of the present invention is that Alarm Unit 5 and alarm mode thereof not only are confined to the result behind this controller one-way only operation is made expression, and, can also be simultaneously to making expression from the bidirectional operation result of gate inhibition's main frame 8 and controller self and relevant monitor message, status information etc.
It is pointed out that described central processing unit can adopt single-chip microcomputer (MCU) to realize, perhaps adopt or realize as digit chips such as FPGA, DSP in conjunction with other, can apply in a flexible way.
In sum, the present invention has used the method for the two-way signaling transmission of science, make automotive theft proof system further realize the function that no-key bidirectional inductive is antitheft, and not only guaranteed realization by high power remote-control car function, and guaranteed the high security realization unblanked of induction automatically, technical safe and reliable, easy to utilize.
Although do not enumerate more embodiment among the present invention, but, the applicant deeply convinces that those skilled in the art all can understand, any each technical characterictic of the present invention is carried out simple substitution to finish the behavior that realizes constructed effect, all should be considered as not unconventional invention spirit of the present invention.In addition; although the present invention mainly is for realizing no-key bidirectional inductive theft-proof system; but on controller of the present invention, increase traditional automobile key 9 as shown in Figure 2 for the consideration of consumer taste or dependability, then also should be considered as not unconventional invention of the present invention spirit and fall within the claim protection domain of the present invention.
Claims (10)
1. no-key bidirectional inductive theft-proof system comprises gate inhibition's main frame of being installed in the car and with wireless mode and the controller that this gate inhibition's main frame is electrically connected, it is characterized in that described controller comprises:
Remote control switching circuit provides operation push-button manually to carry out the switch setting for the user;
Central processing unit, the information of obtaining this switch setting produces first signal that comprises this information, and the information from gate inhibition's main frame is handled in decoding;
High frequency transmitting-receiving treatment circuit carries out information interaction to transmit default secondary signal by second link and described gate inhibition's main frame, transmits described first signal simultaneously to the remote control Transmit-Receive Unit, and handles the information from gate inhibition's main frame;
Described remote control Transmit-Receive Unit is set up first link and is carried out information interaction to transmit described first signal between high frequency transmitting-receiving treatment circuit and described gate inhibition's main frame;
Described gate inhibition's main frame is foundation with the induction secondary signal whether or with the switch setting information that first signal is comprised, and sets or remove its anti-theft feature.
2. no-key bidirectional inductive theft-proof system according to claim 1, it is characterized in that: this system also comprises Alarm Unit, itself and central processing unit electrically connect, central processing unit sends to this Alarm Unit with the signal interactive information between this controller and the gate inhibition's main frame with signal form, and Alarm Unit is expressed this signal with sound, light, one of arbitrary form or its combination of shaking.
3. no-key bidirectional inductive theft-proof system according to claim 2 is characterized in that, this Alarm Unit comprises:
Voicefrequency circuit is used for controlled generation sound effect;
Vibrating circuit is used for controlled generation vibrating effect;
Display circuit is used for controlled generation light and shows effect.
4. according to any described no-key bidirectional inductive theft-proof system in the claim 1 to 3, it is characterized in that: the frequency range that described high frequency transmitting-receiving treatment circuit adopts is between the 315MHz to 786MHz.
5. no-key bidirectional inductive theft-proof system according to claim 4, it is characterized in that: this system comprises a storage unit, is used for the enciphered message between memory controller and the gate inhibition's main frame.
6. no-key bidirectional inductive theft-proof system according to claim 5 is characterized in that, described remote control Transmit-Receive Unit comprises:
Antenna is used for emission or receives signal between controller and the gate inhibition's main frame;
The emission amplifying circuit is used for amplification from the signal of described high frequency transmitting-receiving treatment circuit and transfers to this antenna launching;
Receive amplifying circuit, be used for amplification from the signal of described antenna and transfer to this high frequency transmitting-receiving treatment circuit.
7. the signal processing method of a no-key bidirectional inductive theft-proof system for the treatment of the controller of this burglary-resisting system and the signal cooperation relation between gate inhibition's main frame, is characterized in that this method comprises two-part processing procedure:
One, provide the operation push-button that is preset on the controller to carry out the switch setting for the user, when the user operates it, produce a pair of first signal that result's low frequency should be set, send to described gate inhibition's main frame to set or to remove its anti-theft feature by first link, controller carries out information interaction by this first link and gate inhibition's main frame;
They are two years old, one of controller or gate inhibition's main frame are any or both secondary signals by second chain road direction the other side radiation high frequency simultaneously, gate inhibition's main frame detects less than the secondary signal of this controller or detects when less than controller the secondary signal of gate inhibition's main frame self being made signal feedback, setting enters anti-theft state, otherwise removes this anti-theft state.
8. signal processing method according to claim 7, it is characterized in that, in described process two, when controller detects less than the secondary signal of this gate inhibition's main frame or detects when less than gate inhibition's main frame the secondary signal of controller self being made signal feedback, alarm with sound, light, shake one of arbitrary form or its combination.
9. according to claim 7 or 8 described signal processing methods, it is characterized in that in described process two, controller obtains or receive the status information of gate inhibition's main frame and alarm according to this through second link.
10. according to claim 7 or 8 described signal processing methods, it is characterized in that the frequency range that described secondary signal adopts is between the 315MHz to 768MHz.
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| CN 200810220407 CN101447099B (en) | 2008-12-25 | 2008-12-25 | No-key bidirectional inductive theft-proof system and signal processing method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102129731A (en) * | 2010-12-20 | 2011-07-20 | 重庆集诚汽车电子有限责任公司 | Two-way RKE (Remote Keyless Entry) system of automobile |
| CN102619410A (en) * | 2011-01-28 | 2012-08-01 | 比亚迪股份有限公司 | Intelligent key system and vehicle control method |
| CN104760569A (en) * | 2015-03-25 | 2015-07-08 | 王方圆 | Keyless two-way induction anti-theft system |
| CN106476755B (en) * | 2016-11-14 | 2019-01-29 | 杭州正芯微电子有限公司 | A kind of device of automatic sensing and one-key start |
| CN115550850B (en) * | 2022-10-14 | 2023-10-27 | 无锡康斯泰科技股份有限公司 | BCM controller-based car searching system and method |
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| CN2786884Y (en) * | 2004-10-25 | 2006-06-07 | 王东升 | Multifunctional automobile anti-theft alarm control device |
| CN2871730Y (en) * | 2006-03-04 | 2007-02-21 | 杨旸 | Safe parking-site lock of automobile |
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|---|---|---|---|---|
| CN2786884Y (en) * | 2004-10-25 | 2006-06-07 | 王东升 | Multifunctional automobile anti-theft alarm control device |
| CN2871730Y (en) * | 2006-03-04 | 2007-02-21 | 杨旸 | Safe parking-site lock of automobile |
| CN2893817Y (en) * | 2006-04-28 | 2007-04-25 | 李植滔 | Vehicle antitheft remoto controller |
| CN101098169A (en) * | 2006-06-29 | 2008-01-02 | 宁永敭 | Bidirectional transmission converter |
| CN2924952Y (en) * | 2006-07-24 | 2007-07-18 | 刘鸣 | Long-distance remote control switch integrating infrared remote control, wireless remote control and anti-theft alarm |
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