CN101973244B - Automobile anti-theft system based on double central processing units - Google Patents
Automobile anti-theft system based on double central processing units Download PDFInfo
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- CN101973244B CN101973244B CN2010102930632A CN201010293063A CN101973244B CN 101973244 B CN101973244 B CN 101973244B CN 2010102930632 A CN2010102930632 A CN 2010102930632A CN 201010293063 A CN201010293063 A CN 201010293063A CN 101973244 B CN101973244 B CN 101973244B
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Abstract
The invention discloses an automobile anti-theft system based on double central processing units, comprising a key-free entering system, a remote controller and a starting system, wherein the starting system comprises a first central processing unit, an oil electric control module and a starting circuit. The automobile anti-theft system is characterized by also comprising a radio-frequency identification system and a chip key chain; the starting system also comprising a second central processing unit, and the radio-frequency identification system is electrically connected with the second central processing unit; and generally, the radio-frequency identification system is in a dormant zero-power consumption working state, when the legal remote controller can not control the oil electric control module to unlock or lock, the chip key chain contacts the radio-frequency identification system in a short distance so that the second central processing unit is waked up, and then the oil electric control module is controlled to unlock or lock by the second central processing unit. The automobile anti-theft system can greatly reduce power consumption and error probability, and the first central processing unit can work for a long time without failures; and although in the extreme circumstances, for example, the first central processing unit is in failure or the remote controller is damaged, the chip key chain and the radio-frequency identification system can also be used for emergent start.
Description
Technical field
The present invention relates to the car alarm production field, relate in particular to a kind of automotive theft proof system based on two central process units.
Background technology
Radio frequency discrimination RFID (Radio Frequency Identification) is a kind of contactless automatic identification technology; It is through the automatic recognition objective object of radiofrequency signal and obtain related data; The RFID technology can be discerned high-speed moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.RFID is a kind of simple wireless system, has only two basic devices, and this system is used for control, detection and tracking object.System is made up of an interrogator (or reader) and a lot of responser (or label).Difference by applying frequency is divided into low frequency (LF), high frequency (HF), UHF (UHF), microwave (MW), and corresponding representative frequency is respectively: below the low frequency 135KHz, high frequency 13.56MHz, UHF 860M～960MHz, microwave 2.4G, and 5.8G.
The car alarm of market one key startup is not at present formed by there being spoon entering (PKE) system+start-up system; PKE is the abbreviation of (PASSIVE KEYLESS ENTER); Gate inhibition's control that most of PKE system has automobile burglar, warning function and is used for automobile, baggage container, the some of them system comprises that also remote control starts the function of automobile and automobile searching.This type of Car Burglar Alarm comes with some shortcomings: do not have spoon entering (PKE) system at present and send 66 all-keys searching remote controller information codes for a long time; Task is heavy; Error probability is high, have half left and right sides product mistake that car door can't auto-unlocking in application, to occur on the market, and the remote controller power consumption is also big; It is too fast that remote controller battery is prone to dead electricity, causes communication malfunctioning and can't start automobile.
Summary of the invention
The objective of the invention is to provides a kind of automotive theft proof system based on two central process units to the deficiency of prior art.
Technical scheme of the present invention is following:
Automotive theft proof system based on two central process units; Comprise keyless entry, remote controller and start-up system; Start-up system comprises first central process unit, oily electric control module and start-up circuit; The oil electric control module is electrically connected with start-up circuit, and keyless entry is electrically connected with first central process unit; When remote controller enters into the identification range of keyless entry, control oily electric control module through first central process unit after the legitimacy of keyless entry checking remote controller and unlock; It is characterized in that: also comprise radio-frequency recognition system and chip key ring; Start-up system also comprises second central process unit, and radio-frequency recognition system is electrically connected with second central process unit; Generally; Radio-frequency recognition system is in the zero-power mode of operation of dormancy; When legal remote controller can not be controlled oily electric control module and unlocks; Through chip key ring and radio-frequency recognition system close contact, wake second central process unit up, control oily electric control module by second central process unit and unlock.
Further, the frequency of operation of radio-frequency recognition system is 125KHz.
Further; Behind automobile flameout; Keyless entry constantly sends 8 information codes that are used to seek remote controller of 1 second 4 125KHz towards periphery; Keyless entry if do not receive 66 information codes of the high frequency 433MHz that legal remote controller sends, then locks oily electric control module through first central process unit in 1 second; In remote controller is in discernible distance; After remote controller receives 8 information codes that keyless entry sends; The checking back is beamed back 66 information codes through high frequency 433MHz and is given keyless entry, controls oily electric control module through first central process unit after the legitimacy of keyless entry checking remote controller and unlocks.Keyless entry can constantly send 8 searching remote controller information codes of 1 second 4 125KHz towards periphery, can reduce power consumption and error probability greatly like this.
Further, the control method of car alarm system startup automobile under the state of setting up defences is following:
(1) remote controller detects: if keyless entry detects legal remote controller, the car alarm system is withdrawn a garrison, the automobile door opening lock gets into step (2); Otherwise whether the door that detects automobile is opened, if door is opened, then gets into step (3), carries out the remote controller detection once more otherwise return step (1);
(2) if first central process unit is normal, then controls oily electric control module and unlock, get into step (4), otherwise get into next step by first central process unit;
(3) flicker of the start key lamp of automobile and warning; Press close to start key with the chip key ring this moment; Then radio-frequency recognition system wakes second central process unit up after recognizing legal chip key ring, controls oily electric control module by second central process unit and unlocks, and enters into next step;
(4) the start key lamp Chang Liang of automobile, this moment, weak point was pressed start key, can start automobile.
This automotive theft proof system in use, behind automobile starting, thereby if remote controller is be about 2 meters when exceeding identification range away from automobile, automobile can send theft-proof alarm song.
Compared with prior art, the present invention has following advantage:
Existing keyless entry sends 66 all-keys for a long time and seeks the remote controller information code; Task is heavy; Error probability is high, has half left and right sides product central process unit in application, to occur on the market and loses efficacy and uncontrollable oily electric control module, damages, loses because of remote controller again; Or too fast because of big its battery dead electricity of remote controller power consumption, cause with high-frequency detection malfunctioning and finally can't start automobile.And the keyless entry of invention can constantly send 8 searching remote controller information codes of 1 second 4 125KHz towards periphery, therefore can reduce power consumption and error probability greatly, and first central process unit is no-failure operation for a long time; Even extreme cases such as inefficacy of first central process unit or remote controller damage occur, can also pass through chip key ring and radio-frequency recognition system emergency starting.
Description of drawings
Fig. 1 is based on the automotive theft proof system structural representation of two central process units.
The set up defences diagram of circuit of startup automobile under the state of the automotive theft proof system that Fig. 2 is based on two central process units.
The specific embodiment
As shown in Figure 1; Automotive theft proof system based on two central process units; Comprise keyless entry, remote controller and start-up system, start-up system comprises and is in first central process unit, oily electric control module and start-up circuit that first central process unit is electrically connected with oily electric control module; The oil electric control module is electrically connected with start-up circuit, and keyless entry is electrically connected with first central process unit; When remote controller enters into the identification range of keyless entry, control oily electric control module through first central process unit after the legitimacy of keyless entry checking remote controller and unlock, thereby connect start-up circuit; Also comprise radio-frequency recognition system and chip key ring; Start-up system also comprises second central process unit that is electrically connected with oily electric control module; Radio-frequency recognition system is electrically connected with second central process unit; Generally; Radio-frequency recognition system is in the zero-power mode of operation of dormancy; When can not be normally controlling oily electric control module and unlock, then, wake second central process unit up through chip key ring and radio-frequency recognition system close contact through keyless entry; Control oily electric control module by second central process unit and unlock, thereby connect start-up circuit.
Behind automobile starting, if remote controller is with when about 2 meters of automobile, when promptly exceeding the identification range of keyless entry, automobile can send theft-proof alarm song.
Automobile is if start through the chip key ring, start automobile so after, can carry out reset processing to first central process unit.After first central process unit resetted normally, second central process unit can enter into the zero-power mode of operation of dormancy again.
The frequency of operation of radio-frequency recognition system is 125KHz.
As shown in Figure 1; Keyless entry can constantly send 8 information codes that are used to seek remote controller of 1 second 4 125KHz towards periphery at ordinary times; In remote controller is in recognizable set; After 8 of receiving that keyless entry sends of remote controller are used to seek the information code of remote controller, beam back 66 information codes through high frequency 433MHz immediately after the checking, thereby keyless entry receives and the checking back is withdrawn a garrison automotive theft proof system; And send to start-up system and to instruct start-up circuit all, can significantly reduce power consumption and error probability like this.
As shown in Figure 2, the control method of car alarm system startup automobile under the state of setting up defences is following:
(1) remote controller detects: if keyless entry detects legal remote controller, the car alarm system is withdrawn a garrison, the automobile door opening lock gets into step (2); Otherwise whether the door that detects automobile is opened, if door is opened, then gets into step (3), carries out the remote controller detection once more otherwise return step (1);
(2) if first central process unit is normal, then controls oily electric control module and unlock, get into step (4), otherwise get into next step by first central process unit;
(3) flicker of the start key lamp of automobile and warning; Press close to start key with the chip key ring this moment; Then radio-frequency recognition system wakes second central process unit up after recognizing legal chip key ring, controls oily electric control module by second central process unit and unlocks, and enters into next step;
(4) the start key lamp Chang Liang of automobile, this moment, weak point was pressed start key, can start automobile.
Claims (1)
1. based on the automotive theft proof system of two central process units; Comprise keyless entry, remote controller and start-up system; Start-up system comprises first central process unit, oily electric control module and start-up circuit; The oil electric control module is electrically connected with start-up circuit, and keyless entry is electrically connected with first central process unit; When remote controller enters into the identification range of keyless entry, control oily electric control module through first central process unit after the legitimacy of keyless entry checking remote controller and unlock; Also comprise radio-frequency recognition system and chip key ring; Start-up system also comprises second central process unit, and radio-frequency recognition system is electrically connected with second central process unit; Generally; Radio-frequency recognition system is in the zero-power mode of operation of dormancy; When legal remote controller can not be controlled oily electric control module and unlocks; Through chip key ring and radio-frequency recognition system close contact, wake second central process unit up, control oily electric control module by second central process unit and unlock; The frequency of operation of radio-frequency recognition system is 125KHz; Behind automobile flameout; Keyless entry constantly sends 8 information codes that are used to seek remote controller of 1 second 4 125KHz towards periphery; Keyless entry if do not receive 66 information codes of the high frequency 433MHz that legal remote controller sends, then locks oily electric control module through first central process unit in 1 second; In remote controller is in discernible distance; After remote controller receives 8 information codes that keyless entry sends; The checking back is beamed back 66 information codes through high frequency 433MHz and is given keyless entry; Control oily electric control module through first central process unit after the legitimacy of keyless entry checking remote controller and unlock, it is characterized in that: the control method of car alarm system startup automobile under the state of setting up defences is following:
(1) remote controller detects: if keyless entry detects legal remote controller, the car alarm system is withdrawn a garrison, the automobile door opening lock gets into step (2); Otherwise whether the door that detects automobile is opened, if door is opened, then gets into step (3), carries out the remote controller detection once more otherwise return step (1);
(2) if first central process unit is normal, then controls oily electric control module and unlock, get into step (4), otherwise get into next step by first central process unit;
(3) flicker of the start key lamp of automobile and warning; Press close to start key with the chip key ring this moment; Then radio-frequency recognition system wakes second central process unit up after recognizing legal chip key ring, controls oily electric control module by second central process unit and unlocks, and enters into next step;
(4) the start key lamp Chang Liang of automobile, this moment, weak point was pressed start key, can start automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102930632A CN101973244B (en) | 2010-09-26 | 2010-09-26 | Automobile anti-theft system based on double central processing units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102930632A CN101973244B (en) | 2010-09-26 | 2010-09-26 | Automobile anti-theft system based on double central processing units |
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| Publication Number | Publication Date |
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| CN101973244A CN101973244A (en) | 2011-02-16 |
| CN101973244B true CN101973244B (en) | 2012-06-27 |
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| CN2010102930632A Expired - Fee Related CN101973244B (en) | 2010-09-26 | 2010-09-26 | Automobile anti-theft system based on double central processing units |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102673516B (en) * | 2012-05-30 | 2014-07-23 | 北京经纬恒润科技有限公司 | Wakeup space control method for high frequency data receiving based on SCI (serial communication interface) |
| CN110723086A (en) * | 2019-10-21 | 2020-01-24 | 北京经纬恒润科技有限公司 | Vehicle start control system and method |
| CN111038446B (en) * | 2019-12-26 | 2021-11-19 | 深圳市德塔防爆电动汽车有限公司 | Explosion-proof automobile starting method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4402338B2 (en) * | 2002-08-29 | 2010-01-20 | 株式会社東海理化電機製作所 | Electronic key system |
| JP4179885B2 (en) * | 2003-01-08 | 2008-11-12 | 富士通テン株式会社 | Remote start control device and start control device |
| CN201249735Y (en) * | 2008-07-30 | 2009-06-03 | 吴经奋 | Vehicle burglarproof system |
| CN201345119Y (en) * | 2008-12-25 | 2009-11-11 | 广东铁将军防盗设备有限公司 | Key-free bidirectional induction anti-theft system |
| CN101462533A (en) * | 2009-01-05 | 2009-06-24 | 许李纳 | Non-key entering, anti-theft locating and navigation system of automobile |
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