CN202295082U - Anti-theft alarm for electric vehicle - Google Patents
Anti-theft alarm for electric vehicle Download PDFInfo
- Publication number
- CN202295082U CN202295082U CN2011204047032U CN201120404703U CN202295082U CN 202295082 U CN202295082 U CN 202295082U CN 2011204047032 U CN2011204047032 U CN 2011204047032U CN 201120404703 U CN201120404703 U CN 201120404703U CN 202295082 U CN202295082 U CN 202295082U
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- lithium cell
- control circuit
- theft alarm
- circuit
- host computer
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Abstract
The utility model discloses an anti-theft alarm for an electric vehicle, solves the problems of poor operational reliability and frequent false alarm of the conventional anti-theft alarm for the electric vehicle, and adopts the technical scheme that the anti-theft alarm provided by the utility model comprise a host machine control circuit and an alarm device connected with the host machine control circuit, wherein the host machine control circuit is connected with a vehicle-mounted power supply through a voltage reduction circuit. The anti-theft alarm provided by the utility model is characterized in that the host machine control circuit is connected with a tri-axial digital sensor.
Description
Technical field
The utility model relates to a kind of being applied on the battery-driven car, is used for the battery-driven car annunciator that the antitheft of battery-driven car is reported to the police.
Background technology
All be provided with burglar alarm mostly on the existing battery-driven car, to improve the safety of battery-driven car when parked.Burglar alarm function singleness on the present battery-driven car, theftproof performance is not good, and battery breaks off the back warning function and lost efficacy immediately, and the flase alarm phenomenon is serious.
Chinese invention patent application (application number: disclose a kind of electric vehicle anti-theft alarm device 201110022592.3); Comprise power module, single chip control module, vibration sensor, radio receiving transmitting module and mobile communication module; Power module is connected to and is its power supply on each module; Single chip control module is connected with vibration sensor, radio receiving transmitting module and mobile communication module through the I/O interface respectively; Radio receiving transmitting module is received and dispatched communication through wireless mode and remote controller, and the mobile communication module is connected with car owner's mobile phone through wireless network.The present invention is reasonable in design; Employing is based on the anti-theft alarm mode of wireless network; The overlength distance of having realized low-price high-quality is convenient, intelligent wireless monitoring and warning function flexibly; Under the situation that people's car separates, can in time know the state of battery-driven car, have characteristics such as the alarm monitoring function is strong, accuracy is high, type of alarm is versatile and flexible.
This electric vehicle anti-theft alarm device adopts vibration sensor as the working signal source, and functional reliability is relatively poor relatively, is prone to take place the flase alarm phenomenon.And after vehicle power outage, or after vehicle power illegally stolen, then can't anti-theft alarm be provided for battery-driven car.
Summary of the invention
For overcoming above-mentioned defective, the utility model technical issues that need to address are: a kind of electric vehicle anti-theft alarm device is provided, and its functional reliability is high, and the phenomenon that flase alarm takes place is few.
For solveing the technical problem; The technical scheme that the utility model is taked: a kind of electric vehicle anti-theft alarm device; The host computer control circuit, with the warning device that the host computer control circuit is connected, the host computer control circuit is connected with vehicle power through reduction voltage circuit; It is characterized in that said host computer control circuit is connected with three number of axle word sensors.Three number of axle word sensors are used for detection of vertical to be changed in ground-surface angle, is parallel to the variation of variation of terrestrial meridian angle and surrounding magnetic field.During the work of this electric vehicle anti-theft alarm device, can utilize remote controller that annunciator is set up defences, whether at this moment the host computer control circuit can detect vehicle power successively has; Whether three number of axle word sensors are normal.If vehicle power does not have electricity, alarm equipment alarm reminds the car owner in time to the battery-driven car charging on the one hand, before vehicle power is stolen, can in time send caution on the other hand.If vehicle power has electricity, the Car Burglar Alarm circuit can read value and the storage that three number of axle word sensor current detection arrive, and the value of cycle detection vehicle power that does not stop and three number of axle word sensors is reported to the police when changing.
As preferably, comprise lithium cell, lithium cell is connected with the host computer control circuit through booster circuit.Lithium cell can during as potential theft target, cut off power supply in a flash at vehicle power at vehicle power, and lithium cell continues as the annunciator power supply, makes annunciator that caution can in time be provided, and can effectively improve the safety of vehicle power.
As preferably, lithium cell and charge protector, the reduction voltage circuit back that is cascaded is parallelly connected with vehicle power.Vehicle power can be lithium cell charging, improves the run duration of lithium cell, has save the trouble of changing lithium cell.
As preferably, between lithium cell and charge protector, be provided with diode, this diode current flow vehicle power current direction lithium cell flows to vehicle power by the lithium cell electric current; The point of connection that lithium cell is connected with the host computer control circuit is between diode and lithium cell.The unidirectional conducting of diode and oppositely ending makes that under the situation of vehicle power short of electricity lithium cell can not supplied power for vehicle power, and this makes lithium cell can be the annunciator supply regular power, has improved the functional reliability of this annunciator.
As preferably, between lithium cell and booster circuit, be provided with latching circuit, latching circuit comprises PNP aerotron and NPN aerotron, and these two three utmost points are parallelly connected with resistance R 3, and vehicle power is connected with described latching circuit with resistance R 5 series connection backs.To the NPN transistor base, the NPN aerotron is because the base bias conducting through R5 for the electric current of vehicle power, makes PNP aerotron and the also conducting that obtains setovering.PNP transistor collector outgoing current, thus make the circuit self-locking through the positive feed back of R3, and lithium cell is through the external outgoing current of PNP transistor collector.This moment, vehicle power cut off, and lithium cell continues outgoing current, and through booster circuit supply host computer control circuit, did not utilize under the situation that remote controller cuts out the car owner, and warning device is worked lastingly, thereby has effectively improved the anti-theft effect of this annunciator.
The beneficial effect of the utility model is:
1, three number of axle word sensors are taken from the working signal source of this electric vehicle anti-theft alarm device; During the annunciator in running condition; Only when battery-driven car is moved; Warning device just can send caution, thus the flase alarm phenomenon that can avoid vibration sensor working signal source annunciator to occur through regular meeting.
2, in set inside lithium cell is arranged, during the vehicle power short of electricity, also can make the annunciator normal operation, can effectively improve the functional reliability of annunciator.
3, be provided with lithium cell, also can be when vehicle power be stolen, warning device can in time send caution, has guaranteed the safety of vehicle power.
Description of drawings
Fig. 1 is the circuit diagram of the utility model electric vehicle anti-theft alarm device.
The specific embodiment
The utility model electric vehicle anti-theft alarm device comprises host computer control circuit 8, and host computer control circuit 8 is connected with vehicle power 1 through reduction voltage circuit 2.On host computer control circuit 8, be connected with buzzer phone 9, as the warning device that takes place at battery-driven car or vehicle power 1 when stolen.The working signal source of host computer control circuit 8 is three number of axle word sensors 10; When utilizing remote controller to open this annunciator, after battery-driven car was moved, three number of axle word sensors 10 were compared through detected analog value when stopping; Change thereby can perceive perpendicular to ground-surface angle; Be parallel to the variation of variation of terrestrial meridian angle and surrounding magnetic field, and to host computer control circuit 8 signal be provided in view of the above, 9 work of host computer control circuit 8 instruction buzzer phones.
Also be provided with lithium cell 11 in this annunciator, lithium cell 11 is connected with host computer control circuit 8 through booster circuit 7.Be to prolong the time length of lithium cell 11 work, can utilize vehicle power 1 to charge for lithium cell 11.Therefore, lithium cell 11 is connected with described reduction voltage circuit 2 through charge protector 3, between charge protector 3 and lithium cell 11, is provided with diode 4.
After buzzer phone 9 sends the birdie that serves as warning, require under the normal circumstances when not utilizing remote controller to close, can continue considerable time.Therefore, between lithium cell 11 and reduction voltage circuit 2, also be connected with latching circuit.Latching circuit comprises a PNP aerotron 5 and a NPN aerotron 12, and is parallelly connected with resistance R 3 after these two aerotrons are cascaded, and after their threes link together, connects with resistance R 5, and resistance R 5 is connected through the positive pole of diode 6 with vehicle power 1.The point of connection of latching circuit and lithium cell 11 is between lithium cell 11 and diode 4.
Except being provided with each above-mentioned related electric element, on its forming circuit, also be provided with some resistance in this electric vehicle anti-theft alarm device.Specifically: PNP aerotron 5 is parallelly connected with resistance R 1, and an end of resistance R 2 is connected with the emitter of NPN aerotron 12, and the other end is connected with the negative pole of vehicle power 1, and an end of resistance R 4 is connected with an end of resistance R 5, and the other end is connected with vehicle power 1.
Claims (5)
1. electric vehicle anti-theft alarm device; Host computer control circuit (8); The warning device that is connected with host computer control circuit (8); Host computer control circuit (8) is connected with vehicle power (1) through reduction voltage circuit (2), it is characterized in that, said host computer control circuit (8) is connected with three number of axle word sensors (10).
2. electric vehicle anti-theft alarm device according to claim 1 is characterized in that, comprises lithium cell (11), and lithium cell (11) is connected with host computer control circuit (8) through booster circuit (7).
3. electric vehicle anti-theft alarm device according to claim 2 is characterized in that, lithium cell (11) is cascaded back parallelly connected with vehicle power (1) with charge protector (3), reduction voltage circuit (2).
4. electric vehicle anti-theft alarm device according to claim 3; It is characterized in that; Between lithium cell (11) and charge protector (3), be provided with diode (4); This diode (4) conducting vehicle power current direction lithium cell (11) is by lithium cell (11) current direction vehicle power (1); The point of connection that lithium cell (11) is connected with host computer control circuit (8) is positioned between diode (4) and the lithium cell (11).
5. according to claim 2,3 or 4 described electric vehicle anti-theft alarm devices; It is characterized in that; Between lithium cell (11) and booster circuit (7), be provided with latching circuit; Latching circuit comprises PNP aerotron (5) and NPN aerotron (12), and these two three utmost points are parallelly connected with resistance (R3), and vehicle power (1) is connected with described latching circuit with resistance (R5) series connection back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204047032U CN202295082U (en) | 2011-10-22 | 2011-10-22 | Anti-theft alarm for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204047032U CN202295082U (en) | 2011-10-22 | 2011-10-22 | Anti-theft alarm for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202295082U true CN202295082U (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204047032U Expired - Fee Related CN202295082U (en) | 2011-10-22 | 2011-10-22 | Anti-theft alarm for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202295082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442709A (en) * | 2014-12-30 | 2015-03-25 | 哈尔滨固泰电子有限责任公司 | Alarm apparatus with acceleration sensor and alarm method |
-
2011
- 2011-10-22 CN CN2011204047032U patent/CN202295082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442709A (en) * | 2014-12-30 | 2015-03-25 | 哈尔滨固泰电子有限责任公司 | Alarm apparatus with acceleration sensor and alarm method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20161022 |