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CN214565191U - OBD burglar alarm with good anti-theft effect - Google Patents

OBD burglar alarm with good anti-theft effect Download PDF

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Publication number
CN214565191U
CN214565191U CN202023204034.2U CN202023204034U CN214565191U CN 214565191 U CN214565191 U CN 214565191U CN 202023204034 U CN202023204034 U CN 202023204034U CN 214565191 U CN214565191 U CN 214565191U
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electrically connected
capacitor
microprocessor
resistor
obd
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杜明德
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Dongguan Tiandixing Communication Technology Co ltd
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Dongguan Tiandixing Communication Technology Co ltd
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Abstract

The utility model discloses an effectual OBD alarm of theftproof for install on the vehicle, include: the system comprises a first microprocessor, a second microprocessor, a trigger alarm module, a power control module, a wireless communication module and an OBD interface, wherein the first microprocessor and the second microprocessor are both electrically connected with the power control module, and the second microprocessor is electrically connected with the first microprocessor; the triggering alarm module is electrically connected with the second microprocessor and the power supply control module and is arranged on a door handle of a vehicle; the wireless communication module and the OBD interface are electrically connected with the second microprocessor. The utility model discloses can begin to implement at the theft and effectively warn in earlier stage, avoid the destroyed danger of vehicle, it is effectual to prevent burglary, is convenient for install and use.

Description

OBD burglar alarm with good anti-theft effect
Technical Field
The utility model relates to a navigation head, in particular to effectual OBD alarm of theftproof.
Background
The improvement is opened, the vehicle production technology of China is rapidly advanced, the quality of vehicles of joint-investment brands is good, the sales volume is high, the vehicles of independent brands are rapidly advanced in technology and quality, the vehicles of independent brands are gradually accepted by consumers, and the sales volume is obviously increased. With the development of economic globalization, vehicles are more and more popular, and the technology in the aspects of safety, convenience and comfort is more and more rapidly updated. The conventional OBD burglar alarm is generally provided in a vehicle, but the conventional OBD burglar alarm is limited to a vehicle locking prompt, an unlocking prompt, or the like, and cannot effectively warn at an early stage of the start of theft, so that the anti-theft effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be, provide an effectual OBD alarm of theftproof that can carry out effective warning in earlier stage at the beginning of stealing.
In order to solve the technical problem, the utility model discloses an effectual OBD alarm of theftproof for install on the vehicle, include: the system comprises a first microprocessor, a second microprocessor, a trigger alarm module, a power control module, a wireless communication module and an OBD interface, wherein the first microprocessor and the second microprocessor are both electrically connected with the power control module, and the second microprocessor is electrically connected with the first microprocessor; the triggering alarm module is electrically connected with the second microprocessor and the power supply control module and is arranged on a door handle of a vehicle; the wireless communication module and the OBD interface are electrically connected with the second microprocessor.
In one embodiment, the triggering alarm module includes a piezoelectric sensor, a voltage stabilizing unit, a voltage dividing unit, a comparison control unit and a transistor switch unit, wherein a first end of the piezoelectric sensor is electrically connected with the voltage dividing unit, and a second end of the piezoelectric sensor is grounded; the signal input end of the voltage stabilizing unit is electrically connected with the power supply control module, and the signal output end of the voltage stabilizing unit is electrically connected with the voltage dividing unit and the comparison control unit; the voltage division unit is electrically connected with the comparison control unit, the comparison control unit is electrically connected with the transistor switch unit, and the transistor switch unit is electrically connected with the second microprocessor.
In one embodiment, the voltage stabilization unit includes a first capacitor, a second capacitor, a third capacitor, and a voltage stabilization chip, wherein a first end of the first capacitor is electrically connected to the power control module, and a second end of the first capacitor is grounded; the first end of the second capacitor is electrically connected with the third pin of the voltage stabilizing chip, the second end of the second capacitor is grounded, the first end of the third capacitor is connected with the first end of the second capacitor and the comparison control unit, and the second end of the third capacitor is grounded.
In one embodiment, the comparison control unit includes a first resistor, a second resistor, a third resistor, and a fourth resistor, a first end of the first resistor is electrically connected to a first end of the third capacitor, a second end of the first resistor is electrically connected to a first end of the second resistor and the comparison control unit, and a second end of the second resistor is grounded; the first end of the third resistor is electrically connected with the first end of the third capacitor, and the second end of the third resistor is electrically connected with the first end of the fourth resistor and the comparison control unit; the second end of the fourth resistor is electrically connected with the first end of the piezoelectric sensor, and the second end of the piezoelectric sensor is grounded.
In one embodiment, the comparison control unit includes a 555 time-base chip, a signal input pin of the 555 time-base chip is electrically connected to the second end of the first resistor and the second end of the third resistor, and a signal output pin of the 555 time-base chip is electrically connected to the transistor switch unit.
In one embodiment, the model number of the 555 time base chip is NE 555.
In one embodiment, the transistor switch unit includes a first transistor and a second transistor, a collector of the first transistor is electrically connected to the first end of the third capacitor, a base of the first transistor is electrically connected to the signal output pin of the 555 time-base chip, and an emitter of the first transistor is electrically connected to a base of the second transistor; and the collector of the second triode is electrically connected with the first end of the third capacitor, and the emitter of the second triode is electrically connected with the second microprocessor.
In one embodiment, the OBD burglar alarm further comprises a filtering unit electrically connected to an emitter of the second triode for filtering out noise.
The utility model has the advantages that: firstly, during installation, only the OBD interface is required to be connected with the OBD interface of the vehicle, the installation is simple and the connection is reliable, and because the wiring harness of the original vehicle is not required to be damaged and the original data of the original vehicle is utilized, the installation is more stable and the safety is improved; and secondly, because the triggering alarm module is electrically connected with the second microprocessor and the power supply control module and is arranged on a door handle of the vehicle, an alarm signal can be sent out as long as the triggering alarm module is not pressed, effective warning can be given out at the early stage when the burglary begins to be implemented, the danger that the vehicle is damaged is avoided, and the mounting and the use are convenient.
Drawings
Fig. 1 is a schematic block diagram of a preferred embodiment of the OBD burglar alarm with a good anti-theft effect according to the present invention;
fig. 2 is a circuit diagram of the triggering alarm module of the OBD burglar alarm with good anti-theft effect shown in fig. 1.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. It should be noted that, if there is no conflict, the embodiments and various features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention.
Referring to fig. 1 and 2, the present invention provides an OBD burglar alarm with good anti-theft effect, for being installed on a vehicle, comprising: first microprocessor 1, second microprocessor 2, trigger alarm module 3, power control module 4, wireless communication module 5, OBD interface 6 and voice broadcast module 7, first microprocessor 1 with second microprocessor 2 all with power control module 4 electric connection, second microprocessor 2 with 1 electric connection of first microprocessor. The triggering alarm module 3 is electrically connected with the second microprocessor 2 and the power control module 4 and is installed on a door handle of a vehicle. Wireless communication module 5 the OBD interface 6 and voice broadcast module 7 all with 2 electric connection of second microprocessor.
Because the first microprocessor 1 and the second microprocessor 2 which are connected are adopted to control different modules to work, the power supply control module 4 respectively controls the first microprocessor 1 and the second microprocessor 2 to be powered on or powered off, and the vehicle-mounted power supply supplies power. When the vehicle starts to operate, the first microprocessor 1, the second microprocessor 2 and the modules respectively controlled by the first microprocessor 1 and the second microprocessor 2 can work simultaneously, when the vehicle is parked out of use, the first microprocessor 1 and the modules controlled by the first microprocessor 1 are powered off and stop working, and the second microprocessor 2 and the security module controlled by the second microprocessor 2 are powered by the independent power supply and continue working, so that the vehicle is protected and monitored, partial power-off of the OBD burglar alarm can be realized, the use is convenient, and the electric energy is saved.
In this embodiment, the triggering alarm module 3 includes a piezoelectric sensor RV, a voltage stabilizing unit 31, a voltage dividing unit 32, a comparison control unit 33, a transistor switch unit 34 and a filter unit 35, a first end of the piezoelectric sensor RV is electrically connected to the voltage dividing unit 32, a second end of the piezoelectric sensor RV is grounded, and the piezoelectric sensor RV is bonded to a door handle of a vehicle, so that the piezoelectric sensor RV is not easy to be found but also easy to be installed. The signal input end of the voltage stabilizing unit 31 is electrically connected to the power control module 4, and the signal output end of the voltage stabilizing unit 31 is electrically connected to the voltage dividing unit 32 and the comparison control unit 33. The voltage dividing unit 32 is electrically connected to the comparison control unit 33, the comparison control unit 33 is electrically connected to the transistor switch unit 34, and the transistor switch unit 34 is electrically connected to the second microprocessor 2.
The voltage stabilizing unit 31 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a voltage stabilizing chip U1, wherein a first end of the first capacitor C1 is electrically connected to the power control module 4, and a second end of the first capacitor C1 is grounded; a first end of the second capacitor C2 is electrically connected to the third pin of the regulator chip U1, a second end of the second capacitor C2 is grounded, a first end of the third capacitor C3 is connected to the first end of the second capacitor C2 and the comparison control unit 33, and a second end of the third capacitor C3 is grounded. By providing the voltage stabilization unit 31, false alarms can be better avoided.
The comparison control unit 33 includes a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, a first end of the first resistor R1 is electrically connected to a first end of the third capacitor C3, a second end of the first resistor R1 is electrically connected to a first end of the second resistor R2 and the comparison control unit 33, and a second end of the second resistor R2 is grounded. A first end of the third resistor R3 is electrically connected to a first end of the third capacitor C3, and a second end of the third resistor R3 is electrically connected to a first end of the fourth resistor R4 and the comparison control unit 33; a second end of the fourth resistor R4 is electrically connected to a first end of the piezoelectric sensor RV. When the pressing acting force of the piezoelectric sensor RV is greater than a preset value, the comparison control unit 33 outputs a trigger alarm signal to the comparison control unit 33, so as to control the transistor switch unit 34 to be turned on, and the second microprocessor 2 sends alarm information to a user through the wireless communication module 5 and controls the voice broadcast unit to send alarm sound.
The comparison control unit 33 includes a 555 time-base chip U2, a signal input pin of the 555 time-base chip U2 is electrically connected to the second end of the first resistor R1 and the second end of the third resistor R3, and a signal output pin of the 555 time-base chip U2 is electrically connected to the transistor switch unit 34. In this embodiment, the model of the 555 time base chip U2 is NE 555.
The transistor switch unit 34 includes a first transistor Q1 and a second transistor Q2, a collector of the first transistor Q1 is electrically connected to a first end of the third capacitor C3, a base of the first transistor Q1 is electrically connected to a signal output pin of the 555 time-base chip U2, and an emitter of the first transistor Q1 is electrically connected to a base of the second transistor Q2. The collector of the second transistor Q2 is electrically connected to the first end of the third capacitor C3, and the emitter of the second transistor Q2 is electrically connected to the second microprocessor 2. The filtering unit 35 is electrically connected to an emitter of the second transistor Q2, and is configured to filter out noise. Specifically, the filtering unit 35 includes a fourth capacitor, a first end of the fourth capacitor is electrically connected to the emitter of the second transistor Q2, and a second end of the fourth capacitor is grounded.
It can be understood that the wireless communication module 5 may include a GSM module, a GPRS module, a CDMA module, and various wireless communication modules 5 such as 3G and 4G, and the wireless communication module 5 is an integrated circuit module, has an information transfer function, and can implement information transfer between a background, a vehicle-mounted management device, and a user. The wireless communication module 5 receives the issued command and reports real-time information including real-time position information, real-time status information, vehicle data and the like to a background.
In summary, firstly, during installation, only the OBD interface 6 needs to be connected with the OBD interface 6 of the vehicle, the installation is simple and the connection is reliable, and because the wiring harness of the original vehicle does not need to be damaged and the original data of the original vehicle is utilized, the installation is more stable and the safety is improved; secondly, because the triggering alarm module 3 is electrically connected with the second microprocessor 2 and the power control module 4 and is arranged on a door handle of the vehicle, an alarm signal can be sent out as long as the triggering alarm module 3 is not pressed, effective warning can be given out at the early stage of the implementation of theft, and the danger that the vehicle is damaged is avoided.
The OBD burglar alarm with good anti-theft effect provided by the present invention is introduced in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. To sum up, this description content only does the embodiment of the utility model, not therefore the restriction the patent scope of the utility model, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model, should not be understood as right the utility model discloses a restriction.

Claims (8)

1.一种防盗效果好的OBD防盗器,用于安装在车辆上,其特征在于,包括:第一微处理器、第二微处理器、触发报警模块、电源控制模块、无线通讯模块及OBD接口,所述第一微处理器和所述第二微处理器均与所述电源控制模块电性连接,所述第二微处理器与所述第一微处理器电性连接;所述触发报警模块与所述第二微处理器及电源控制模块电性连接,并安装于车辆的门把手上;所述无线通讯模块及所述OBD接口均与所述第二微处理器电性连接。1. an OBD anti-theft device with a good anti-theft effect, for being installed on a vehicle, is characterized in that, comprising: the first microprocessor, the second microprocessor, triggering an alarm module, a power supply control module, a wireless communication module and an OBD an interface, the first microprocessor and the second microprocessor are both electrically connected to the power control module, and the second microprocessor is electrically connected to the first microprocessor; the triggering The alarm module is electrically connected with the second microprocessor and the power control module, and is installed on the door handle of the vehicle; the wireless communication module and the OBD interface are both electrically connected with the second microprocessor. 2.如权利要求1所述的防盗效果好的OBD防盗器,其特征在于,所述触发报警模块包括压电传感器、稳压单元、分压单元、比较控制单元及晶体管开关单元,所述压电传感器的第一端与所述分压单元电性连接,所述压电传感器的第二端接地;所述稳压单元的信号输入端与所述电源控制模块电性连接,所述稳压单元的信号输出端与所述分压单元及比较控制单元电性连接;所述分压单元与所述比较控制单元电连接,所述比较控制单元与所述晶体管开关单元电连接,所述晶体管开关单元与所述第二微处理器电连接。2. The OBD anti-theft device with good anti-theft effect as claimed in claim 1, wherein the triggering alarm module comprises a piezoelectric sensor, a voltage-stabilizing unit, a voltage-dividing unit, a comparison control unit and a transistor switch unit. The first end of the electrical sensor is electrically connected to the voltage dividing unit, and the second end of the piezoelectric sensor is grounded; the signal input end of the voltage stabilizing unit is electrically connected to the power control module, and the voltage stabilizing unit is electrically connected to the power supply control module. The signal output end of the unit is electrically connected to the voltage dividing unit and the comparison control unit; the voltage dividing unit is electrically connected to the comparison control unit, the comparison control unit is electrically connected to the transistor switch unit, and the transistor The switch unit is electrically connected to the second microprocessor. 3.如权利要求2所述的防盗效果好的OBD防盗器,其特征在于,所述稳压单元包括第一电容、第二电容、第三电容、稳压芯片,所述第一电容的第一端与所述电源控制模块电性连接,所述第一电容的第二端接地;所述第二电容的第一端与所述稳压芯片的第三脚电连接,所述第二电容的第二端接地,所述第三电容的第一端与所述第二电容的第一端及比较控制单元连接,所述第三电容的第二端接地。3. The OBD anti-theft device with good anti-theft effect as claimed in claim 2, wherein the voltage-stabilizing unit comprises a first capacitor, a second capacitor, a third capacitor, and a voltage-stabilizing chip, and the first capacitor has a One end is electrically connected to the power control module, the second end of the first capacitor is grounded; the first end of the second capacitor is electrically connected to the third pin of the voltage regulator chip, and the second capacitor The second end of the third capacitor is connected to the ground, the first end of the third capacitor is connected to the first end of the second capacitor and the comparison control unit, and the second end of the third capacitor is connected to the ground. 4.如权利要求3所述的防盗效果好的OBD防盗器,其特征在于,所述比较控制单元包括第一电阻、第二电阻、第三电阻、第四电阻,所述第一电阻的第一端与所述第三电容的第一端电性电连接,所述第一电阻的第二端与所述第二电阻的第一端及所述比较控制单元电性连接,所述第二电阻的第二端接地;所第三电阻的第一端与所述第三电容的第一端电性连接,所述第三电阻的第二端与所述第四电阻的第一端及所述比较控制单元电性连接;所述第四电阻的第二端与所述压电传感器的第一端电性连接。4. The OBD anti-theft device with good anti-theft effect as claimed in claim 3, wherein the comparison control unit comprises a first resistor, a second resistor, a third resistor and a fourth resistor, and the first resistor One end is electrically connected to the first end of the third capacitor, the second end of the first resistor is electrically connected to the first end of the second resistor and the comparison control unit, the second The second end of the resistor is grounded; the first end of the third resistor is electrically connected to the first end of the third capacitor, and the second end of the third resistor is connected to the first end of the fourth resistor and the first end of the third capacitor. The comparison control unit is electrically connected; the second end of the fourth resistor is electrically connected to the first end of the piezoelectric sensor. 5.如权利要求4所述的防盗效果好的OBD防盗器,其特征在于,所述比较控制单元包括555时基芯片,所述555时基芯片的信号输入脚与所述第一电阻的第二端及所述第三电阻的第二端电性连接,所述555时基芯片的信号输出脚与所述晶体管开关单元电性连接。5. The OBD anti-theft device with good anti-theft effect as claimed in claim 4, wherein the comparison control unit comprises a 555 time base chip, and the signal input pin of the 555 time base chip and the first resistor of the first resistor. The two terminals are electrically connected to the second terminal of the third resistor, and the signal output pin of the 555 timing chip is electrically connected to the transistor switch unit. 6.如权利要求5所述的防盗效果好的OBD防盗器,其特征在于,所述555时基芯片的型号为NE555。6. The OBD anti-theft device with good anti-theft effect as claimed in claim 5, wherein the model of the 555 time base chip is NE555. 7.如权利要求5所述的防盗效果好的OBD防盗器,其特征在于,所述晶体管开关单元包括第一三极管、第二三极管,所述第一三极管的集电极与所述第三电容的第一端电性连接,所述第一三极管的基极与所述555时基芯片的信号输出脚电性连接,所述第一三极管的发射极与所述第二三极管的基极电连接;所述第二三极管的集电极与所述第三电容的第一端电性连接,所述第二三极管的发射极与所述第二微处理器电性连接。7. The OBD anti-theft device with good anti-theft effect as claimed in claim 5, wherein the transistor switch unit comprises a first triode and a second triode, and the collector of the first triode is The first terminal of the third capacitor is electrically connected, the base of the first transistor is electrically connected to the signal output pin of the 555 time base chip, and the emitter of the first transistor is electrically connected to the signal output pin of the 555 time base chip. The base of the second triode is electrically connected; the collector of the second triode is electrically connected to the first end of the third capacitor, and the emitter of the second triode is electrically connected to the first end of the third capacitor. The two microprocessors are electrically connected. 8.如权利要求7所述的防盗效果好的OBD防盗器,其特征在于,所述OBD防盗器还包括滤波单元,所述滤波单元与所述第二三极管的发射极电连接,用于滤除杂波。8. The OBD anti-theft device with good anti-theft effect as claimed in claim 7, wherein the OBD anti-theft device further comprises a filter unit, and the filter unit is electrically connected with the emitter of the second triode, using to filter out clutter.
CN202023204034.2U 2020-12-25 2020-12-25 OBD burglar alarm with good anti-theft effect Active CN214565191U (en)

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CN202023204034.2U CN214565191U (en) 2020-12-25 2020-12-25 OBD burglar alarm with good anti-theft effect

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