CN201882038U - Automobile self-induction electronic concealed switch anti-theft device - Google Patents
Automobile self-induction electronic concealed switch anti-theft device Download PDFInfo
- Publication number
- CN201882038U CN201882038U CN2010206295155U CN201020629515U CN201882038U CN 201882038 U CN201882038 U CN 201882038U CN 2010206295155 U CN2010206295155 U CN 2010206295155U CN 201020629515 U CN201020629515 U CN 201020629515U CN 201882038 U CN201882038 U CN 201882038U
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- identity recognizer
- microcontroller
- automobile
- control unit
- circuit
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- Lock And Its Accessories (AREA)
Abstract
The utility model discloses an automobile self-induction electronic concealed switch anti-theft device which is convenient to be installed and to transmit low-frequency signals and consists of an identity recognizer and an electronic control unit, wherein the identity recognizer consists of a microcontroller, an RF (radio frequency) circuit, a watch battery and a standby button; the RF circuit, the watch battery and the standby button are directly connected on the microcontroller; and the control unit is formed by directly connecting a UHF (Ultra High Frequency) receiving module, an LF (low frequency) transmitting module, a microcontroller and an automobile circuit controller in sequence. For the automobile self-induction electronic concealed switch anti-theft device, the anti-theft performance is good, the operation is simple, the installation is convenient, the application range is wide, the assembly is easy and the promotion is facilitated.
Description
Technical field
The utility model relates to anti-joyride device, is specially a kind of automobile self induction electronics flush type switch anti-joyride device.
Background technology
The car alarm assortment class of Xiao Shouing is various in the market, mainly comprise following three series products: one, mechanical anti-theft column lock, two, electric anti-thief device, three, network theftproof device, wherein mechanical anti-theft column lock is owing to use trouble, the theftproof performance difference is progressively eliminated by market, network theftproof system owing to exist is disengaged easily, price and use cost height, need the reason such as servicing center not accepted by main flow market, these two kinds of anti-joyride devices are not used in maximum automobile burglar produce market auto-loading market yet.A large amount of uses is electric anti-thief device in the market.
Highly reliable self induction vehicle electronics anti-joyride device belongs to electric anti-thief device, is to improve the new automobile burglar product that develops on the basis of existing electronic anti-theft product.But in main two kinds of specifications of existing vehicle electronics anti-joyride device, requirement on machining accuracy to induction chip is very high, and user cipher briefly can draw by automobile VIN number and formula operation, the stolen car person finds rule easily, and another carries out the Car Burglar Alarm of work by signal receiver, then be subjected to outer signals easily and disturb, responding to makes mistakes causes the stolen situation of vehicle and generation is guarded against.
The utility model content
The technical matters that the utility model solved is to provide a kind of automobile self induction electronics flush type switch anti-joyride device, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the utility model solved realizes by the following technical solutions:
Automobile self induction electronics flush type switch anti-joyride device, by identity recognizer, electronic control unit is formed, wherein identity recognizer comprises microcontroller, RF circuit, button cell and emergency button are formed, RF circuit wherein, and button cell and emergency button direct connection are on microcontroller; Control unit directly is composed in series by UHF receiver module, LF transmitter module, microcontroller and automobile circuit controller etc.The UHF receiver module will receive encrypted encoded data and deliver microcontroller, and microcontroller decoding rolling code data obtain former control command, and by vehicle key parts controller Control of Automobile key components and parts circuit.
Wherein said microcontroller has accurate 8MHz internal oscillator, 3.5K byte flash memory programming memory device, 128 byte RAM and the 256 byte EEPROM that clock switches, it has ultra low power wake-up (ULPW) and strengthens WatchDog Timer (EWDT), and has software and can select brownout to reset (BOR) and low voltage able to programme detects (PLVD), wakes (WUR) function that resets up.It is integrated LF AFE(analog front end) comprises that three passage, input susceptibility 3mV, programmable antenna that are used for the 125kHz of omnidirectional wireless telecommunications regulate, and supports low electric weight operation; System clock is 4MHz (a built-in oscillator), and PIC16F639 enters park mode during standby, and power consumption is very low, several approximately peaces of receiving.In view of identity recognizer adopts powered battery, the work of PIC16F639 must be effectively controlled, thereby saves battery power consumption.This microcontroller must be with minimum circuit working during non-aggressive mode.Chip contains low frequency front end and digital circuit, and always at the search incoming signal, numerical portion then is in sleep pattern to the low frequency fore-end, to save battery electric quantity, only just is waken up when receiving an effective control unit order.This can realize by use a special wake-up filter in the low frequency fore-end.And the low frequency testing circuit is also able to programme, and making only just has output when incoming signal has predefined data packet header.
Though signal has better directivity unlike high-frequency signal, it still has certain directivity for the low frequency (125kHz) of control unit emission.For the self induction switch, the direction that the identity recognizer user places can be arbitrarily, and therefore, identity recognizer has designed three secondary orthogonal antennas, can be captured in the control unit signal on any assigned direction.
In addition, identity recognizer has also designed an emergency button, to prevent connecting the circuit of vehicle key parts at the LF communication stronger encrypted message of emissive power that manually touches the button when being interfered.
In the moment that automobile ignition switch is connected, electronic control unit sends password request information to identity recognizer, identity recognizer sends encrypted message to control unit after judgement is the password request information sent of its cooresponding electronic control unit, to with the supporting product of motor plant, control unit is judged correct back of password and Engine ECU communication, again with the Engine ECU password check, if password is correct, the Engine ECU program is normally moved, and automotive engine could normally move; To back dress market product, after control unit judges that password is correct, connect the circuit of vehicle key parts (as oil pump, high-tension coil, starter, Engine ECU etc.), automobile could normal operation.
Variable roll frame hopping technology when being that the cryptographic system of automobile self induction electronics flush type switch anti-joyride device adopts, the password between identity recognizer and electronic control unit all changes each time, can prevent from like this to have been received decoding by the external world.Highly reliable self induction vehicle electronics anti-joyride device is only connected the moment password check of ignition lock the car owner.Identity recognizer can be placed on one's body Anywhere or in the bag that carries at any time, the anti-joyride device entire work process does not need artificial participation.
Owing to do not have induction coil in the utility model, identity recognizer adopts active chip, identity recognizer if in anti-theft control unit antenna 1.5M scope Anywhere can, do not influence the transmission and the reception of password, do not need the such strictness of general Car Burglar Alarm to demarcate; And Variable roll frame hopping when password is does not need the user that password is arranged on hand, does not have interface input password on the car yet, does not therefore worry that the car stealer finds the password rule to break a code.
Beneficial effect: it is good, simple to operate, easy for installation that this project of the utility model anti-joyride device has a theftproof performance, and widely applicable grade a bit has very high economic value and social value, is worth exploitation and promotes.
Description of drawings
Fig. 1 is the scheme drawing of the utility model preferred embodiment;
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Automobile self induction electronics flush type switch anti-joyride device referring to Fig. 1, its left side is a control unit 1, the right side is an identity recognizer 2, the power supply "+" and power supply "-" polar curve that will connect automobile ignition coil, starter, electric fuel punp or Engine ECU during use are cut off, and are concatenated into two interfaces of the present utility model and get final product.
When identity recognizer 2 is connected near control unit 1 and automobile ignition switch, receive control unit 1 emission be used to wake up identity recognizer 2 low frequency signal, make identity recognizer 2 be in state of activation, identity recognizer 2 is changed password by algorithm then, and by the code signal of RF channel transmission through coding, identity recognizer 2 signals that control unit 1 receives are decoded, password is correctly then connected the circuit of vehicle key parts and is changed new password, and automobile can normally start.
More than show and described groundwork of the present utility model, principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. automobile self induction electronics flush type switch anti-joyride device, it is characterized in that, by identity recognizer, electronic control unit is formed, wherein identity recognizer comprises microcontroller, RF circuit, button cell and emergency button are formed, RF circuit wherein, and button cell and emergency button direct connection are on microcontroller; Control unit directly is composed in series by UHF receiver module, LF transmitter module, microcontroller and automobile circuit controller.
2. automobile self induction electronics flush type switch anti-joyride device according to claim 1 is characterized in that, has designed three secondary orthogonal antennas on the described identity recognizer.
3. automobile self induction electronics flush type switch anti-joyride device according to claim 1 is characterized in that, described identity recognizer adopts active chip, Variable roll frame hopping when password is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206295155U CN201882038U (en) | 2010-11-29 | 2010-11-29 | Automobile self-induction electronic concealed switch anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206295155U CN201882038U (en) | 2010-11-29 | 2010-11-29 | Automobile self-induction electronic concealed switch anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882038U true CN201882038U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206295155U Expired - Fee Related CN201882038U (en) | 2010-11-29 | 2010-11-29 | Automobile self-induction electronic concealed switch anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832401A (en) * | 2012-11-21 | 2014-06-04 | 中国移动通信集团公司 | Vehicle anti-theft system and induction intensifying device and method |
| CN104015688A (en) * | 2014-05-28 | 2014-09-03 | 周岳 | Motor vehicle electric fuel pump with intelligent computer chip |
-
2010
- 2010-11-29 CN CN2010206295155U patent/CN201882038U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832401A (en) * | 2012-11-21 | 2014-06-04 | 中国移动通信集团公司 | Vehicle anti-theft system and induction intensifying device and method |
| CN103832401B (en) * | 2012-11-21 | 2016-05-25 | 中国移动通信集团公司 | A kind of VATS Vehicle Anti-Theft System, induced enhancement device and method |
| CN104015688A (en) * | 2014-05-28 | 2014-09-03 | 周岳 | Motor vehicle electric fuel pump with intelligent computer chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20121129 |