CN103661266A - Dual-radio-frequency burglar alarm - Google Patents
Dual-radio-frequency burglar alarm Download PDFInfo
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- CN103661266A CN103661266A CN201310684355.2A CN201310684355A CN103661266A CN 103661266 A CN103661266 A CN 103661266A CN 201310684355 A CN201310684355 A CN 201310684355A CN 103661266 A CN103661266 A CN 103661266A
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Abstract
A dual-radio-frequency burglar alarm comprises a main control base station mounted inside an automobile and provided with a high-frequency receiving device, a first single-chip microcomputer processing center, a low-frequency emitting device and an executing device, and a key provided with a low-frequency receiving device, a second single-chip microcomputer processing center and a high-frequency emitting device corresponding to the main control base station. A bidirectional radio frequency induction recognition achieved by the main control base station and the key is achieved, automatic unlocking can be achieved by an automobile owner within the signal induction range without key triggering, automatic locking, window closing and flameout can be achieved beyond the induction range, and automatic alarm giving can be achieved when a door lock is opened and an automobile is started illegally without signal induction.
Description
Technical field
The present invention relates to automobile burglar field, espespecially a kind of dual radio frequency anti-theft equipment.
Background technology
In order to prevent the generation of car clout event, people can install Car Burglar Alarm conventionally on automobile.But on Vehicles Collected from Market, be generally unidirectional, remote-transmitter wireless signal is to the switch that is arranged on base station on automobile and realizes car door, this uni-directional wireless transmits and is easy to stolen device and receives and decode, and encryption performance is not high, will give like this and steal the chance that car is easily stolen in the manufacture of car molecule; And the transmitting of signal all needs manual button, can not automatically respond to, therefore convenient not in operation, particularly when car owner's both hands are all being carried thing, and don't while being conveniently put on the ground (as rainy day).
Summary of the invention
For addressing the above problem, the invention provides a kind of dual radio frequency anti-theft equipment.
For achieving the above object, the technical solution used in the present invention is: a kind of dual radio frequency anti-theft equipment, comprise: main control base station, comprise: high-frequency receiving device, the first micro controller system processing enter, low frequencies device, executive circuit, the mouth of described high-frequency receiving device is connected with the input of described the first micro controller system processing enter, and the input end of described low frequencies device is connected with the mouth of described the first micro controller system processing enter; Executive device, described executive device is connected with the mouth of described the first micro controller system processing enter; Key, comprise: low frequency receiver, second singlechip processing enter, high-frequency radiator, the mouth of described low frequency receiver is connected with the input end of described second singlechip processing enter, and the input end of described high-frequency radiator is connected with the mouth of described second singlechip processing enter;
Wherein, in order to increase the service life of battery, simplify the present invention's design, reduce manufacturing cost of the present invention, described main control base station, its high-frequency receiving device adopts RX3400 wireless receiving chip, and its first micro controller system processing enter adopts μ PF78F0881 micro controller system, and its low frequencies device adopts TMS705 radio frequency chip; Described key, its low frequency receiver adopts AS3931 wireless receiving chip, and its second singlechip processing enter adopts μ PF78F0503 micro controller system, and its high-frequency radiator adopts TMS37122 radio frequency chip.
Wherein, described main control base station comprises power circuit, and described power circuit comprises polarity protection diode, voltage stabilizing chip; Described power circuit is connected with automobile storage battery, and through polarity protection diode, voltage stabilizing chip is exported steady point voltage, by being told executive device, provides constant voltage power suspply;
Wherein, described executive device comprises door and window relay, door lock relay, flame-out relay, alarm relay; Described door and window relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with Switch for door and window circuit; Described door lock relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with door switch circuit; Described flame-out relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with automobile flameout circuit; Described alarm relay input end is connected with described the first micro controller system processing enter mouth, mouth and auto horn switch, and indication lamp switch connects.
Wherein, the transmitting frequency of described low frequencies device is 125KHZ; The transmitting frequency of described high-frequency radiator is 433MHZ.
Beneficial effect of the present invention is: break through orthodox car Car Burglar Alarm unidirectional RF signal transmission, and the two-way radio-frequency signal that adopts main control base station and key mutually automatically to respond to, signal is cracked through effectively preventing radiofrequency signal, safe and reliable; In addition, when car owner holds key entering signal identification range, car can auto-unlocking, without manual button, easy to operate.
Accompanying drawing explanation
Fig. 1 is principle frame line chart of the present invention.
The specific embodiment
Referring to Fig. 1 shows, the present invention is about a kind of dual radio frequency anti-theft equipment, comprise: main control base station, comprise: high-frequency receiving device, the first micro controller system processing enter, low frequencies device, executive circuit, the mouth of described high-frequency receiving device is connected with the input of described the first micro controller system processing enter, and the input end of described low frequencies device is connected with the mouth of described the first micro controller system processing enter; Executive device, described executive device is connected with the mouth of described the first micro controller system processing enter; Key, comprise: low frequency receiver, second singlechip processing enter, high-frequency radiator, the mouth of described low frequency receiver is connected with the input end of described second singlechip processing enter, and the input end of described high-frequency radiator is connected with the mouth of described second singlechip processing enter;
Wherein, in order to increase the service life of battery, simplify the present invention's design, reduce manufacturing cost of the present invention, described main control base station, its high-frequency receiving device adopts RX3400 wireless receiving chip, and its first micro controller system processing enter adopts μ PF78F0881 micro controller system, and its low frequencies device adopts TMS705 radio frequency chip; Described key, its low frequency receiver adopts AS3931 wireless receiving chip, and its second singlechip processing enter adopts μ PF78F0503 micro controller system, and its high-frequency radiator adopts TMS37122 radio frequency chip.
Wherein, described main control base station comprises power circuit, and described power circuit comprises polarity protection diode, voltage stabilizing chip; Described power circuit is connected with automobile storage battery, and through polarity protection diode, voltage stabilizing chip is exported steady point voltage, by being told executive device, provides constant voltage power suspply;
Wherein, described executive device comprises door and window relay, door lock relay, flame-out relay, alarm relay; Described door and window relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with Switch for door and window circuit; Described door lock relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with door switch circuit; Described flame-out relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with automobile flameout circuit; Described alarm relay input end is connected with described the first micro controller system processing enter mouth, mouth and auto horn switch, and indication lamp switch connects.
Wherein, the transmitting frequency of described low frequencies device is 125KHZ; The transmitting frequency of described high-frequency radiator is 433MHZ.
In automobile, the 125KHZ low frequency signal after the first micro controller system processing enter is encrypted is passed through in the transmitting of the low frequencies device of main control base station, when key entering signal range of receiving that car owner carries, low frequency receiver in key receives signal, this signal is decrypted confirmation by the second singlechip processing enter of key, when if this signal is consistent with identification signal that in second singlechip processing enter in key, initial setting is preserved, the high-frequency radiator of key sends the 433MHZ high-frequency signal of encrypting through monolithic processing enter 2, signal receives and inputs to the first micro controller system processing enter by the high-frequency signal receiver of main control base station, after deciphering is confirmed, output control command, inspire the relay of unblanking, car door opening.
When car owner leaves automobile, car door is not shut, when vehicle window is not shut and automobile is flame-out, if when the key that car owner carries leaves signal range of receiving, the first micro controller system processing enter of main control base station will not receive the high-frequency signal of key transmission, it exports control command immediately, inspire door lock relay, door and window relay and flame-out relay, the door of automobile is automatic locking, vehicle window is closed automatically, oil circuit automatic distinguishing.
When stealing car molecule without signal identifying, when lock and car engine switch are opened the door in pressure, the first micro controller system processing enter of main control base station is exported control command immediately, inspires alarm relay, simultaneously ring loudspeaker and flicker of automobile turned to etc., thereby draw back with fear, steal car molecule.
Above embodiment is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineering staff in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (5)
1. a dual radio frequency anti-theft equipment, is characterized in that, comprising:
Main control base station, described main control base station comprises: high-frequency receiving device, the first micro controller system processing enter, low frequencies device, executive device; The mouth of described high-frequency receiving device is connected with the input of described the first micro controller system processing enter, and the input end of described low frequencies device is connected with the mouth of described the first micro controller system processing enter; Executive device, described executive device is connected with the mouth of described the first micro controller system processing enter;
Key, comprising: low frequency receiver, second singlechip processing enter, high-frequency radiator; The mouth of described low frequency receiver is connected with the input end of described second singlechip processing enter; The input end of described high-frequency radiator is connected with the mouth of described second singlechip processing enter.
2. a kind of dual radio frequency anti-theft equipment according to claim 1, it is characterized in that: described main control base station, its high-frequency receiving device adopts RX3400 wireless receiving chip, and its first micro controller system processing enter adopts μ PF78F0881 micro controller system, and its low frequencies device adopts TMS705 radio frequency chip; Described key, its low frequency receiver adopts AS3931 wireless receiving chip, and its second singlechip processing enter adopts μ PF78F0503 micro controller system, and its high-frequency radiator adopts TMS37122 radio frequency chip.
3. a kind of dual radio frequency anti-theft equipment according to claim 1, is characterized in that: comprise power circuit, described power circuit comprises polarity protection diode, voltage stabilizing chip; Described power circuit is connected with automobile storage battery, and through polarity protection diode, voltage stabilizing chip is exported steady point voltage, by being told executive device, provides constant voltage power suspply.
4. a kind of dual radio frequency anti-theft equipment according to claim 1, is characterized in that: comprise door and window relay, door lock relay, flame-out relay, alarm relay; Described door and window relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with Switch for door and window circuit; Described door lock relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with door switch circuit; Described flame-out relay input end is connected with described the first micro controller system processing enter mouth, and mouth is connected with automobile flameout circuit; Described alarm relay input end is connected with described the first micro controller system processing enter mouth, mouth and auto horn switch, and indication lamp switch connects.
5. a kind of dual radio frequency anti-theft equipment according to claim 1, is characterized in that: the transmitting frequency of described low frequencies device is 125KHZ; The transmitting frequency of described high-frequency radiator is 433MHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684355.2A CN103661266A (en) | 2013-12-13 | 2013-12-13 | Dual-radio-frequency burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684355.2A CN103661266A (en) | 2013-12-13 | 2013-12-13 | Dual-radio-frequency burglar alarm |
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| CN103661266A true CN103661266A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310684355.2A Pending CN103661266A (en) | 2013-12-13 | 2013-12-13 | Dual-radio-frequency burglar alarm |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760569A (en) * | 2015-03-25 | 2015-07-08 | 王方圆 | Keyless two-way induction anti-theft system |
| CN106815904A (en) * | 2015-12-01 | 2017-06-09 | 深圳达实信息技术有限公司 | Access control method, device and access control equipment, system |
| CN108364450A (en) * | 2018-04-10 | 2018-08-03 | 上海兴裕景通信技术有限公司 | A kind of remote controlled transmitting circuit and receiving circuit |
| CN110979257A (en) * | 2019-12-20 | 2020-04-10 | 广东中鑫智能网络科技有限公司 | Method and device for controlling opening and closing of vehicle door lock |
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| DE102005005894A1 (en) * | 2005-02-09 | 2006-09-28 | Siemens Ag | Data transmission system for motor vehicle, has control device/identification transmitter transmitting low/high frequency signal to identification transmitter/control device over radio transmitter/receiver |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760569A (en) * | 2015-03-25 | 2015-07-08 | 王方圆 | Keyless two-way induction anti-theft system |
| CN106815904A (en) * | 2015-12-01 | 2017-06-09 | 深圳达实信息技术有限公司 | Access control method, device and access control equipment, system |
| CN106815904B (en) * | 2015-12-01 | 2020-05-15 | 深圳达实物联网技术有限公司 | Access control method and device, access control equipment and system |
| CN108364450A (en) * | 2018-04-10 | 2018-08-03 | 上海兴裕景通信技术有限公司 | A kind of remote controlled transmitting circuit and receiving circuit |
| CN110979257A (en) * | 2019-12-20 | 2020-04-10 | 广东中鑫智能网络科技有限公司 | Method and device for controlling opening and closing of vehicle door lock |
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Application publication date: 20140326 |