CN214565191U - OBD burglar alarm with good anti-theft effect - Google Patents
OBD burglar alarm with good anti-theft effect Download PDFInfo
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- 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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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
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. An effectual OBD alarm of theftproof for install on the vehicle, its characterized in that includes: 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.
2. The OBD burglar alarm with good anti-theft effect according to claim 1, wherein said triggering alarm module comprises a piezoelectric sensor, a voltage stabilizing unit, a voltage dividing unit, a comparison control unit and a transistor switch unit, a first end of said piezoelectric sensor is electrically connected to said voltage dividing unit, and a second end of said 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.
3. The OBD burglar alarm with good anti-theft effect according to claim 2, wherein said voltage-stabilizing unit comprises a first capacitor, a second capacitor, a third capacitor, and a voltage-stabilizing chip, a first end of said first capacitor is electrically connected to said power control module, and a second end of said 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.
4. The OBD burglar alarm with good anti-theft effect according to claim 3, wherein said comparison control unit comprises a first resistor, a second resistor, a third resistor, and a fourth resistor, wherein a first end of said first resistor is electrically connected to a first end of said third capacitor, a second end of said first resistor is electrically connected to a first end of said second resistor and said comparison control unit, and a second end of said 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; and the second end of the fourth resistor is electrically connected with the first end of the piezoelectric sensor.
5. The OBD burglar alarm with good anti-theft effect as claimed in claim 4, wherein said comparison control unit comprises a 555 time base chip, a signal input pin of said 555 time base chip is electrically connected to said second end of said first resistor and said second end of said third resistor, and a signal output pin of said 555 time base chip is electrically connected to said transistor switch unit.
6. The OBD burglar alarm with good anti-theft effect as claimed in claim 5, wherein said 555 time base chip is NE555 type.
7. The OBD burglar alarm with good anti-theft effect as claimed in claim 5, wherein said transistor switch unit comprises a first transistor and a second transistor, a collector of said first transistor is electrically connected to a first end of said third capacitor, a base of said first transistor is electrically connected to a signal output pin of said 555 time base chip, and an emitter of said first transistor is electrically connected to a base of said 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.
8. The OBD burglar alarm with good anti-theft effect of claim 7, further comprising a filtering unit electrically connected to an emitter of said second transistor for filtering out noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023204034.2U CN214565191U (en) | 2020-12-25 | 2020-12-25 | OBD burglar alarm with good anti-theft effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023204034.2U CN214565191U (en) | 2020-12-25 | 2020-12-25 | OBD burglar alarm with good anti-theft effect |
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| Publication Number | Publication Date |
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| CN214565191U true CN214565191U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023204034.2U Active CN214565191U (en) | 2020-12-25 | 2020-12-25 | OBD burglar alarm with good anti-theft effect |
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| CN (1) | CN214565191U (en) |
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