DEVICE FOR AUTOMOBILE SAFETY

• US 20120313795A1
• Filed: 01/09/2012
• Published: 12/13/2012
• Est. Priority Date: 06/09/2011
• Status: Active Grant

• Current Assignee: Ningbo Yinzhou Yonglin Electron Electrical Equipment Company Limited
• Original Assignee: Ningbo Yinzhou Yonglin Electron Electrical Equipment Company Limited
• Inventors: Wang, Linhu
• Granted Patent: US 8,723,697 B2
• Time in Patent Office: Days
• US Class Current: 340/989
• CPC Class Codes: B60R 25/045 by limiting or cutting the electrical supply to the propulsion unit

Abstract

The present invention discloses a device for automobile safety in the field of automobile safety, which addresses the problems existing in the prior art that the conventional automobiles tend to be stolen and have a low safety. The device for automobile safety includes an RF antenna (JP1), an RFID module, a GSM unit, a data processing unit (U1), a control unit (U2) and automobile circuits. The device for automobile safety of the invention has numerous benefits, for example an improved theft-proof property and warnings against driving at fatigue and/or beyond the speed limit.

Claims

1. A device for automobile safety, comprising an RF antenna (JP1), an RFID module, a GSM unit, a data processing unit (U1), a control unit (U2) and automobile circuits, wherein,

(i) the RF antenna (JP1) could provide power to the RFID module in a wireless manner, and meanwhile could receive an analog signal from the RFID module, and could transmit the received analog signal to the data processing unit (U1) through a voltage drop circuit;

(ii) the data processing unit (U1) could be connected with the control unit (U2) via a communication circuit, after receiving the analog signal input from the RF antenna (JP1), the data processing unit (U1) could be subject to filtration and convert the analog signal into a digital serial signal to be transmitted to the control unit (U2) via the communication circuit, and the control unit (U2) could control the status of the data processing unit (U1) through the communication circuit;

(iii) the control unit (U2) could be connected with a first relay (RL1) and a second relay (RL2) respectively through a first drive circuit and a second drive circuit, after receiving the digital serial signal sent by the digital processing unit (U1), the control unit (U2) could obtain the identity information by a decoding process and then compare said identity information with the identity information pre-stored in the control unit (U2), if said two are identical, the identity shall be regarded as legal, the control unit (U2) controls the first relay (RL1) to be closed via the first drive circuit;

if said two are different, the identity shall be regarded as illegal, and the control unit (U2) controls the first relay (RL1) to be opened via the first drive circuit;

(iv) the GSM unit could be adapted to process a GSM signal, the GSM unit could exchange data with the control unit (U2) in a serial communication mode;

the user could send an anti-theft state activation or release instruction, in the form of a short message, to the GSM unit through a service center, after receiving the instruction, the GSM unit could transmit in the serial communication mode the instruction to the control unit (U2) for resolving the instruction received, if it is an anti-theft state activation instruction, then the control unit (U2) controls the second relay (RL2) to be opened through the second drive circuit;

if it is an anti-theft state release instruction, the control unit (U2) controls the second relay (RL2) to be closed through the second drive circuit; and

(v) the automobile circuits are connected in series with the relays (RL1, RL2), and the automobile could only be normally started when both relays are closed.

2. The device for automobile safety as claimed in claim 1, wherein, the voltage drop circuit includes a first resistor (R1), a capacitor (C1) and a second capacitor (C2), in which two ends of the first resistor (R1) could be connected with the RF antenna (JP1) and the data processing unit (U1) respectively, one end of the first capacitor (C1) could be connected with the RF antenna (JP1), one end of the second capacitor (C2) could be grounded, and the other end of the first capacitor (C1) and the other end of the second capacitor (C2) could be linked to be connected with the data processing unit (U1).

3. The device for automobile safety as claimed in claim 1, wherein, the data processing unit (U1) is a programmable logic device (CPLD) or a field programmable gate array (FPGA).

4. The device for automobile safety as claimed in claim 3, wherein, the control unit (U2) is a MSC-51 single chip microcomputer.

5. The device for automobile safety as claimed in claim 4, wherein, the communication circuit includes a second resistor (R2) and a third resistor (R3), the data processing unit (U1) could be connected with the first leg of the MSC-51 single chip microcomputer through the second resistor (R2) for controlling the state of the data processing unit (U1);

after receiving the analog signal input by the RF antenna (JP1), the data processing unit (U1) could be subject to filtration and convert the analog signal into the digital serial signal to be transmitted to the second leg of the MSC-51 single chip microcomputer via the third resistor (R3); and

in the meantime, the data processing unit (UI) could output a synchronous clock signal to the third leg of the MSC-51 single chip microcomputer, so as to aid the MSC-51 single chip microcomputer to accurately demodulate the digital serial signal.

6. The device for automobile safety as claimed in claim 4, wherein, the first drive circuit includes a first diode (D1), a fourth resistor (R4) and a third capacitor (C3), in which the anode of the first diode (D1) could be connected with the fourth leg of the MSC-51 single chip microcomputer, one end of the fourth resistor (R4) could be connected with the cathode of the first diode (D1), one end of the third capacitor (C3) could be grounded, and the other end of the fourth resistor (R4) and the other end of the third capacitor (C3) could be linked to be connected with the first relay (RL1).

7. The device for automobile safety as claimed in claim 5, wherein, the first drive circuit includes a first diode (D1), a fourth resistor (R4) and a third capacitor (C3), in which the anode of the first diode (D1) could be connected with the fourth leg of the MSC-51 single chip microcomputer, one end of the fourth resistor (R4) could be connected with the cathode of the first diode (D1), one end of the third capacitor (C3) could be grounded, and the other end of the fourth resistor (R4) and the other end of the third capacitor (C3) could be linked to be connected with the first relay (RL1).

8. The device for automobile safety as claimed in claim 6, wherein, the second drive circuit includes a second diode (D2), a fifth resistor (R5) and a fourth capacitor (C4), in which the anode of the second diode (D2) could be connected with the sixth leg of the MSC-51 single chip microcomputer, one end of the fifth resistor (R5) could be connected with the cathode of the second diode (D2), one end of the fourth capacitor (C4) could be grounded, and the other end of the fifth resistor (R5) and the other end of the fourth capacitor (C4) could be linked to be connected with the second relay (RL2).

9. The device for automobile safety as claimed in claim 7, wherein, the second drive circuit includes a second diode (D2), a fifth resistor (R5) and a fourth capacitor (C4), in which the anode of the second diode (D2) could be connected with the sixth leg of the MSC-51 single chip microcomputer, one end of the fifth resistor (R5) could be connected with the cathode of the second diode (D2), one end of the fourth capacitor (C4) could be grounded, and the other end of the fifth resistor (R5) and the other end of the fourth capacitor (C4) could be linked to be connected with the second relay (RL2).

10. The device for automobile safety as claimed in claim 4, wherein, said device for automobile safety further includes a GPS unit which could be connected with the control unit (U2), the GPS unit could be adapted to process a received GPS signal, a range setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the range setting instruction, then the distance range in the range setting instruction could be saved, the information of current position of the automobile could be obtained from the GPS unit and saved, and in the meantime the timer could be activated, the information of current position of the automobile could be periodically read from the GPS unit and then compared with the position information as saved, if the distance difference exceeds the predetermined distance range, the fourth leg of the control unit (U2) is kept at a low level and the first relay (RL1) is opened, the GSM unit could transmit a warning signal to the user through the service center, and the information of current position of the automobile obtained from the GPS unit could be carried in the warning signal.

11. The device for automobile safety as claimed in claim 8, wherein, said device for automobile safety further includes a GPS unit which could be connected with the control unit (U2), the GPS unit could be adapted to process a received GPS signal, a range setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the range setting instruction, then the distance range in the range setting instruction could be saved, the information of current position of the automobile could be obtained from the GPS unit and saved, and in the meantime the timer could be activated, the information of current position of the automobile could be periodically read from the GPS unit and then compared with the position information as saved, if the distance difference exceeds the predetermined distance range, the fourth leg of the control unit (U2) is kept at a low level and the first relay (RL1) is opened, the GSM unit could transmit a warning signal to the user through the service center, and the information of current position of the automobile obtained from the GPS unit could be carried in the warning signal.

12. The device for automobile safety as claimed in claim 9, wherein, said device for automobile safety further includes a GPS unit which could be connected with the control unit (U2), the GPS unit could be adapted to process a received GPS signal, a range setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the range setting instruction, then the distance range in the range setting instruction could be saved, the information of current position of the automobile could be obtained from the GPS unit and saved, and in the meantime the timer could be activated, the information of current position of the automobile could be periodically read from the GPS unit and then compared with the position information as saved, if the distance difference exceeds the predetermined distance range, the fourth leg of the control unit (U2) is kept at a low level and the first relay (RL1) is opened, the GSM unit could transmit a warning signal to the user through the service center, and the information of current position of the automobile obtained from the GPS unit could be carried in the warning signal.

13. The device for automobile safety as claimed in claim 10, wherein, said device for automobile safety further includes a speech warning circuit which could be connected with the control unit (U2), a speed setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the maximum travelling speed setting instruction, then the maximum travelling speed in the maximum travelling speed setting instruction would be converted into a value of the distance travelled in each second and thus saved, and in the meantime the timer could be activated, the information of current position of the automobile could be read once from the GPS unit every second, and the distance difference of the information of positions between two neighboring reading times could be calculated, while the distance difference exceeds the predetermined value of the distance travelled in each second, the control unit (U2) could control the speech warning circuit to inform the driver that the automobiles is travelling beyond the speed limit.

14. The device for automobile safety as claimed in claim 11, wherein, said device for automobile safety further includes a speech warning circuit which could be connected with the control unit (U2), a speed setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the maximum travelling speed setting instruction, then the maximum travelling speed in the maximum travelling speed setting instruction would be converted into a value of the distance travelled in each second and thus saved, and in the meantime the timer could be activated, the information of current position of the automobile could be read once from the GPS unit every second, and the distance difference of the information of positions between two neighboring reading times could be calculated, while the distance difference exceeds the predetermined value of the distance travelled in each second, the control unit (U2) could control the speech warning circuit to inform the driver that the automobiles is travelling beyond the speed limit.

15. The device for automobile safety as claimed in claim 12, wherein, said device for automobile safety further includes a speech warning circuit which could be connected with the control unit (U2), a speed setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the maximum travelling speed setting instruction, then the maximum travelling speed in the maximum travelling speed setting instruction would be converted into a value of the distance travelled in each second and thus saved, and in the meantime the timer could be activated, the information of current position of the automobile could be read once from the GPS unit every second, and the distance difference of the information of positions between two neighboring reading times could be calculated, while the distance difference exceeds the predetermined value of the distance travelled in each second, the control unit (U2) could control the speech warning circuit to inform the driver that the automobiles is travelling beyond the speed limit.

16. The device for automobile safety as claimed in claim 13, wherein, said device for automobile safety further includes a timing unit which could be connected with the control unit (U2), a fatigued driving period setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the fatigued driving period setting instruction, then the timing unit could be configured as per the value of fatigued driving period in the fatigued driving period setting instruction, while the continuous driving period exceeds the determined value of fatigued driving period, the control unit (U2) could control the speech warning circuit to inform the driver not to drive at fatigue.

17. The device for automobile safety as claimed in claim 14, wherein, said device for automobile safety further includes a timing unit which could be connected with the control unit (U2), a fatigued driving period setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the fatigued driving period setting instruction, then the timing unit could be configured as per the value of fatigued driving period in the fatigued driving period setting instruction, while the continuous driving period exceeds the determined value of fatigued driving period, the control unit (U2) could control the speech warning circuit to inform the driver not to drive at fatigue.

18. The device for automobile safety as claimed in claim 13, wherein, said device for automobile safety further includes a speed measuring unit which could be connected with the control unit (U2), a speed setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the maximum travelling speed setting instruction, then the maximum travelling speed value in the maximum travelling speed setting instruction could be saved, and in the meantime the timer could be activated, the value of current speed of the automobile could be periodically read one from the speed measuring unit, while the speed of the automobile exceeds the determined maximum travelling speed for 16 continuous seconds, the control unit (U2) could control the speech warning circuit to inform the driver that the automobile is travelling beyond the speed limit.

19. The device for automobile safety as claimed in claim 14, wherein, said device for automobile safety further includes a speed measuring unit which could be connected with the control unit (U2), a speed setting instruction could be transmitted by the user, in the form a short message, to the GSM unit through the service center, after receiving the instruction, the GSM unit could transfer the instruction to the control unit (U2) in the serial communication mode, the control unit (U2) could resolve the instruction received, if it is the maximum travelling speed setting instruction, then the maximum travelling speed value in the maximum travelling speed setting instruction could be saved, and in the meantime the timer could be activated, the value of current speed of the automobile could be periodically read once from the speed measuring unit, while the speed of the automobile exceeds the determined maximum travelling speed for 16 continuous seconds, the control unit (U2) could control the speech warning circuit to inform the driver that the automobile is travelling beyond the speed limit.

20. The device for automobile safety as claimed in claim 1, wherein, the first relay (RL1) and second relay (RL2) are relays of the same nature, including a relay body and a safety means, the relay body includes a weak current system, a strong current system, a base and a housing, the weak current system has an iron core, a coiling, a yoke, an armature and an armature compression spring, wherein the safety means includes two fuse sockets and a fuse mounted between the two fuse sockets, one of the fuse sockets could have a connector at the upper part and could have a secure piece at the lower part, the secure piece could be fixed on the yoke, the other one of the fuse sockets could have a connector at the upper part and could be provided with a power source pin and a secure leg at the lower part, an insulation spacer could be located between the connector and the yoke, the power source pin could pass through the base and be restricted to the base, the secure leg could be inserted into the base, a fuse mounting port could be provided at the top of the housing corresponding to said two fuse sockets, and the fuse could be placed into the mounting port.