Truck cargo theft alarm device

Abstract

The utility model relates to a truck article theftproof alarm device, spring vibration switch connects signal coding module, signal coding module connects radio frequency transmitting module, signal coding module connects main control module, and main control module connects GPRS wireless communication module to send alarm signal through cloud server to mobile terminal connected with cloud server, receiver includes signal decoding module, radio frequency receiving module, bee calling organ and LED indicating module, signal decoding module connects radio frequency receiving module to receive the signal sent by radio frequency transmitting module through bee calling organ and LED indicating module to trigger sound and light alarm to remind user when radio frequency receiving module receives, which can make the driver receive alarm information in time when the oil tank appears vibration, and the alarm information can be known through the mobile phone when the receiver cannot receive the alarm information, ensuring the reliability and stability of theftproof alarm.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft alarm technology for trucks, and in particular to an anti-theft alarm device for trucks, which is mainly used on the fuel tank of a truck. Background Technology

[0002] Freight vehicles are generally called trucks or lorries. They are vehicles mainly used for transporting goods, and sometimes they can also refer to vehicles that can tow other vehicles. They belong to the category of commercial vehicles.

[0003] Generally, trucks can be divided into heavy-duty and light-duty trucks based on their weight. Most trucks use diesel engines as their power source, but some light-duty trucks use gasoline, LPG, or natural gas. Some trucks have larger fuel tanks and multiple fuel tanks because they travel long distances.

[0004] For truck drivers, the fuel tank is the most important item on their truck. Some large trucks can hold 200 liters of fuel in a single tank, costing several thousand yuan each time. Because truck fuel tanks are usually partially attached to the sides, some criminals specialize in stealing fuel from these large trucks. They use homemade suction devices to forcibly open the fuel tank caps and siphon the fuel out. Due to the large size of trucks and the many blind spots, sometimes even the owner inside the truck cannot detect the fuel theft. While truck owners now add anti-theft locks or lock cylinders to the connection between the fuel tank and the cap, these are still easily pried open with tools for fuel theft. Furthermore, the simple structure of existing fuel tanks allows criminals to use sharp objects to puncture them and steal fuel.

[0005] Therefore, in this utility model patent application, the applicant has carefully researched a truck anti-theft alarm device to solve the above problems. Utility Model Content

[0006] This utility model addresses the shortcomings of the existing technology and aims to provide a truck anti-theft alarm device that can promptly alert the driver when the fuel tank vibrates. Furthermore, it allows the driver to receive alarm information via mobile phone even when the receiver fails to receive the alarm information, thus ensuring the reliability and stability of the anti-theft alarm.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A truck cargo anti-theft alarm device includes an anti-theft sensor installed on the cargo in the truck and a receiver for wireless communication connected to the anti-theft sensor.

[0009] The anti-theft sensor includes a main control module, an radio frequency transmission module, a signal encoding module, a spring vibration switch for detecting vibration, and a GPRS wireless communication module for wirelessly connecting to a cloud server.

[0010] The spring vibration switch is connected to the signal encoding module, and the output of the signal encoding module is connected to the radio frequency transmission module to send the alarm signal to the receiver through the radio frequency module;

[0011] The output of the signal encoding module is also connected to the main control module, which is connected to the GPRS wireless communication module to send the alarm signal to the mobile terminal connected to the cloud server via the cloud server.

[0012] The receiver includes a signal decoding module, an RF receiving module for wirelessly connecting to the RF transmitting module, and a buzzer and an LED indicator module respectively connected to the signal decoding module;

[0013] The signal decoding module is connected to the radio frequency receiving module so that the signal received by the radio frequency receiving module is triggered by the buzzer and LED indicator module to alert the user with sound and light alarm.

[0014] As a preferred embodiment, the anti-theft sensor also includes a first power supply circuit for powering the device.

[0015] As a preferred embodiment, the receiver further includes a second power supply circuit for powering the receiver.

[0016] As a preferred embodiment, the radio frequency receiving module includes a chip U11, a capacitor C2, a resistor R1, a crystal oscillator Y1, an inductor L1, a capacitor C1, a capacitor C4, a resistor R14, a resistor R16, a transistor Q3, a resistor R1, a transistor Q2, a resistor R14, a resistor R15, a resistor R16, a resistor R13, and an inductor L2.

[0017] Pin 1 of chip U11 is grounded. Pin 1 of chip U11 is connected to pin 2 of chip U11 through capacitor C2. Pin 2 of chip U11 is used to connect to the 3V voltage terminal. Pin 3 of chip U11 is connected to the base of transistor Q3 through resistors R1 and R15. The emitters of transistors Q3 and Q2 are both grounded. The collector of transistor Q3 is connected to the base of transistor Q2 through resistor R16.

[0018] Resistors R14 and R13 are connected in series. The non-series node of resistor R14 is connected to the collector of transistor Q3, and the non-series node of resistor R13 is connected to the collector of transistor Q2. The non-series node of resistor R13 is also connected to the signal decoding module. Pin 4 of chip U11 is grounded, pin 5 of chip U11 is grounded through crystal oscillator Y1, pin 8 of chip U11 is grounded through inductor L1, and pin 8 of chip U11 is also grounded through capacitor C3. One end of capacitor C1 is connected to pin 8 of chip U11, and the other end of capacitor C1 is used to connect to the ANT1 terminal. The other end of capacitor C1 is grounded through inductor L2, and capacitor C4 is connected in parallel with inductor L2.

[0019] As a preferred embodiment, the spring vibration switch is connected to the signal encoding module via a sensitivity adjustment circuit.

[0020] As a preferred embodiment, the sensitivity adjustment circuit includes resistors R25, R27, and R26, capacitors C12 and C13, a sliding rheostat R24, resistors R28 and R29, resistor R30, diode D1, transistor Q11, and transistor Q21.

[0021] One end of each of resistors R25, R26, R28, and the variable resistor R24 ​​is connected to the VCC voltage terminal. The other end of resistor R28 is connected to pin 1 of the spring vibration switch. The other end of resistor R28 is also connected to the negative terminal of diode D1 through capacitor C13. The negative terminal of diode D1 is grounded through resistor R30. The positive terminal of diode D1 and the base of transistor Q11 are connected to the other end of resistor R26. The other end of resistor R25 is connected to the base of transistor Q21 through resistor R27. The other end of resistor R25 is also connected to the collector of transistor Q11. The emitters of both transistors Q11 and Q21 are grounded. The base of transistor Q21 is connected to the emitter of transistor Q21 through resistor R29. The collector of transistor Q21 is connected to the positive terminal of diode D1 through capacitor C12. The collector of transistor Q21 and the other end of variable resistor R24 ​​are both connected to the second main control circuit.

[0022] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, it mainly achieves the alarm information that the driver can receive in time when the fuel tank vibrates by cooperating with the anti-theft sensor and receiver. In particular, the output of the signal encoding module is split into two paths. One path is output to the receiver to improve the anti-theft security of the fuel tank, and the other path is output to the cloud server wirelessly connected to the mobile terminal. This allows the driver to receive the alarm information through the mobile phone when the receiver cannot receive the alarm information, thus ensuring the reliability and stability of the anti-theft alarm.

[0023] Secondly, by connecting the spring vibration switch and the first main control circuit through the sensitivity adjustment circuit, the sensitivity of the anti-theft detection can be adjusted, thereby reducing unnecessary abnormal detections and improving the driver's user experience.

[0024] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the anti-theft sensor circuit according to an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the receiver circuit according to an embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of the anti-theft sensor structure according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the receiver structure according to an embodiment of the present utility model;

[0029] Figure 5 This is a general control principle block diagram of an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] 10. Anti-theft sensor 11. Spring vibration switch

[0032] 111. Sensitivity adjustment circuit; 12. Signal encoding module

[0033] 13. Radio Frequency Transmission Module 14. Main Control Module

[0034] 15. GPRS wireless communication module; 16. First power supply circuit

[0035] 20. Receiver

[0036] 21. Radio Frequency Receiving Module; 22. Signal Decoding Module

[0037] 23. Buzzer 24. LED indicator module

[0038] 25. Second power supply circuit

[0039] 30. Cloud server 40. Mobile terminal. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 5As shown, a truck cargo anti-theft alarm device includes an anti-theft sensor 10 installed on the cargo in the truck and a receiver 20 for wireless communication connected to the anti-theft sensor 10.

[0042] The anti-theft sensor 10 includes a main control module 14, an radio frequency transmission module 13, a signal encoding module 12, a first power supply circuit 16 for power supply, a spring vibration switch 11 for detecting vibration, and a GPRS wireless communication module 15 for wirelessly connecting to the cloud server 30.

[0043] The spring vibration switch 11 is connected to the signal encoding module 12. In this embodiment, the spring vibration switch 11 is connected to the signal encoding module 12 through the sensitivity adjustment circuit 111.

[0044] The sensitivity adjustment circuit 111 includes resistors R25, R27, and R26, capacitors C12 and C13, a sliding rheostat R24, resistors R28 and R29, resistors R30, diode D1, transistor Q11, and transistor Q21.

[0045] One end of each of resistors R25, R26, R28, and the variable resistor R24 ​​is connected to the VCC voltage terminal. The other end of resistor R28 is connected to pin 1 of the spring vibration switch 11. The other end of resistor R28 is also connected to the negative terminal of diode D1 through capacitor C13. The negative terminal of diode D1 is grounded through resistor R30. The positive terminal of diode D1 and the base of transistor Q11 are connected to the other end of resistor R26. The other end of resistor R25 is connected to the base of transistor Q21 through resistor R27. The other end of resistor R25 is also connected to the collector of transistor Q11. The emitters of both transistors Q11 and Q21 are grounded. The base of transistor Q21 is connected to the emitter of transistor Q21 through resistor R29. The collector of transistor Q21 is connected to the positive terminal of diode D1 through capacitor C12. The collector of transistor Q21 and the other end of variable resistor R24 ​​are both connected to the second main control circuit.

[0046] The output of the signal encoding module 12 is connected to the radio frequency transmitting module 13 to send the alarm signal to the receiver 20 through the radio frequency module.

[0047] The output of the signal encoding module 12 is also connected to the main control module 14, which is connected to the GPRS wireless communication module 15 to send the alarm signal to the mobile terminal 40 connected to the cloud server 30 via the cloud server 30.

[0048] In this embodiment, the first power supply circuit 16 includes a chip U1, a power indicator LED1, a resistor R1, a capacitor C2, a battery BAT11, a polarized capacitor C1, and a VCC voltage terminal, with the negative terminal of the battery BAT1 grounded.

[0049] The positive terminal of battery BAT1 and pin 3 of chip U1 are both connected to the VCC voltage terminal. The positive terminal of polarized capacitor C1 is connected to the VCC voltage terminal, and the negative terminal of polarized capacitor C1 is grounded. Capacitor C2 is connected in parallel with polarized capacitor C1. Pin 1 of chip U1 is connected to the negative terminal of power indicator LED1. The positive terminal of power indicator LED1 is connected to pin 3 of chip U1 through resistor R1. Pin 2 of chip U1 is grounded.

[0050] In this embodiment, the signal encoding module 12 is composed of a PT2262S chip U3 and its peripheral circuits, the main control module 14 uses an STM32G030F6P6TR chip U6, the GPRS wireless communication module 15 is composed of a SIM800C chip U5 and its peripheral circuits, and the radio frequency transmission module 13 is composed of a PT44655 chip U2 and its peripheral circuits.

[0051] Pin 17 of chip U3 outputs a signal, which is split into two paths: one path outputs to RF transmitting module 13 (specifically, to pin 4 of chip U2), and the other path outputs to main control module 14 (specifically, to pin 11 of chip U6). Then, pin 1 of chip U6 sends the signal to pin 2 of chip U5 in RF transmitting module 13. Pin 32 of chip U5 in RF transmitting module 13 uploads the signal (such as alarm information) to cloud server 30 via mobile network. After identifying the user's customer number, cloud server 30 sends the alarm information for that customer number to the user's mobile terminal 40 (such as a mobile phone) via mobile network. The user can then view the information by opening their mobile phone. Because mobile networks now have full coverage in all regions, there is no concern about users not receiving alarm information.

[0052] The receiver 20 includes a signal decoding module 22, a second power supply circuit 25 for power supply, an RF receiving module 21 for wireless connection to the RF transmitting module 13, and a buzzer 23 (e.g., connected to the signal decoding module 22) respectively. Figure 2 Buzzer BZ1 and LED indicator module 24;

[0053] The signal decoding module 22 is connected to the radio frequency receiving module 21 so that the radio frequency receiving module 21 receives the signal emitted by the radio frequency transmitting module 13 and triggers an audible and visual alarm to remind the user through the buzzer 23 and the LED indicator module 24.

[0054] In this embodiment, the radio frequency receiving module 21 includes a chip U11, a capacitor C2, a resistor R1, a crystal oscillator Y1, an inductor L1, a capacitor C1, a capacitor C4, a resistor R14, a resistor R16, a transistor Q3, a resistor R1, a transistor Q2, a resistor R14, a resistor R15, a resistor R16, a resistor R13, and an inductor L2.

[0055] Pin 1 of chip U11 is grounded. Pin 1 of chip U11 is connected to pin 2 of chip U11 through capacitor C2. Pin 2 of chip U11 is used to connect to the 3V voltage terminal. Pin 3 of chip U11 is connected to the base of transistor Q3 through resistors R1 and R15. The emitters of transistors Q3 and Q2 are both grounded. The collector of transistor Q3 is connected to the base of transistor Q2 through resistor R16.

[0056] Resistors R14 and R13 are connected in series. The non-series node of resistor R14 is connected to the collector of transistor Q3, and the non-series node of resistor R13 is connected to the collector of transistor Q2. The non-series node of resistor R13 is also connected to signal decoding module 22. Pin 4 of chip U11 is grounded, pin 5 of chip U11 is grounded through crystal oscillator Y1, pin 8 of chip U11 is grounded through inductor L1, and pin 8 of chip U11 is also grounded through capacitor C3. One end of capacitor C1 is connected to pin 8 of chip U11, and the other end of capacitor C1 is used to connect to the ANT1 terminal. The other end of capacitor C1 is grounded through inductor L2, and capacitor C4 is connected in parallel with inductor L2.

[0057] like Figure 2 As shown, in this embodiment, the signal decoding module 22 consists of a PT227L4S chip U2 and its peripheral circuitry. The chip U2 is connected to a speaker BZ1 to provide an audible alarm.

[0058] The light alarm circuit 24 consists of a 4-bit D latch chip U4 (model CD4042), a reset switch S2, four LEDs, and their peripheral circuitry. The alarm can be reset via the reset switch S2.

[0059] In this embodiment, the wireless receiving circuit 23 includes a chip U11, a capacitor C2, a resistor R1, a crystal oscillator Y1, an inductor L1, a capacitor C1, a capacitor C4, a resistor R14, a resistor R16, a transistor Q3, a resistor R1, a transistor Q2, a resistor R14, a resistor R15, a resistor R16, a resistor R13, and an inductor L2.

[0060] Pin 1 of chip U11 is grounded. Pin 1 of chip U11 is connected to pin 2 of chip U11 through capacitor C2. Pin 2 of chip U11 is used to connect to the 3V voltage terminal. Pin 3 of chip U11 is connected to the base of transistor Q3 through resistors R1 and R15. The emitters of transistors Q3 and Q2 are both grounded. The collector of transistor Q3 is connected to the base of transistor Q2 through resistor R16.

[0061] Resistors R14 and R13 are connected in series. The non-series node of resistor R14 is connected to the collector of transistor Q3, and the non-series node of resistor R13 is connected to the collector of transistor Q2. The non-series node of resistor R13 is also connected to the second main control circuit 21. Pin 4 of chip U11 is grounded, pin 5 of chip U11 is grounded through crystal oscillator Y1, pin 8 of chip U11 is grounded through inductor L1, and pin 8 of chip U11 is also grounded through capacitor C3. One end of capacitor C1 is connected to pin 8 of chip U11, and the other end of capacitor C1 is used to connect to the ANT1 terminal. The other end of capacitor C1 is grounded through inductor L2, and capacitor C4 is connected in parallel with inductor L2.

[0062] In this embodiment, the second power supply circuit 22 includes battery BAT1, battery BAT2, power indicator LED1, resistor R12, chip U3, double-pole four-throw switch S1, polarized capacitor C6, polarized capacitor C8, 6V voltage terminal and 3V voltage terminal.

[0063] In this embodiment, the LED indicator module 24 includes a latch circuit and an LED indicator circuit. The latch circuit is composed of a CD4042 chip U4 and its peripheral circuits.

[0064] The following explanation of the working principle will use a fuel tank as an example:

[0065] When the driver wants to rest, first attach the anti-theft sensor 10 to the inside of the fuel tank to avoid it being visible from a normal viewing angle; then carry the receiver 20 with him, and press the alarm activation button S2 on the receiver 20 to enter the alarm state.

[0066] When a thief touches the fuel tank, the spring-loaded vibration switch 11S1 is triggered.

[0067] On the one hand, the signal encoding module 12 transmits the abnormal signal to the radio frequency receiving module 21 through the radio frequency transmitting module 13. After receiving the abnormal information through the radio frequency receiving module 21, the signal decoding module 22 triggers an audible and visual alarm to wake up the driver through the buzzer 23 and the LED indicator module 24.

[0068] On the other hand, the signal encoding module 12 sends the abnormal signal to the main control module 14. The main control module 14 then transmits the signal to the cloud server 30 via the GPRS wireless communication module 15 through the mobile network. After the cloud server 30 identifies the driver's customer number, it sends the alarm information of that customer number to the driver's mobile terminal 40 (such as a mobile phone) through the mobile network. The driver can then learn about the corresponding alarm information by checking the information on the mobile phone.

[0069] The key design feature of this utility model is that it uses the cooperation of an anti-theft sensor and a receiver to enable the driver to receive an alarm message in a timely manner when the fuel tank vibrates. In particular, the output of the signal encoding module is split into two paths: one path is output to the receiver to improve the anti-theft security of the fuel tank, and the other path is output to a cloud server that is wirelessly connected to a mobile terminal. This allows the driver to receive the alarm message via mobile phone when the receiver cannot receive the alarm message, thus ensuring the reliability and stability of the anti-theft alarm.

[0070] Secondly, by connecting the spring vibration switch and the first main control circuit through the sensitivity adjustment circuit, the sensitivity of the anti-theft detection can be adjusted, thereby reducing unnecessary abnormal detections and improving the driver's user experience.

[0071] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A truck cargo anti-theft alarm device, comprising an anti-theft sensor installed on the cargo in the truck and a receiver for wireless communication connected to the anti-theft sensor, characterized in that: The anti-theft sensor includes a main control module, an radio frequency transmission module, a signal encoding module, a spring vibration switch for detecting vibration, and a GPRS wireless communication module for wirelessly connecting to a cloud server. The spring vibration switch is connected to the signal encoding module, and the output of the signal encoding module is connected to the radio frequency transmission module to send the alarm signal to the receiver through the radio frequency module; The output of the signal encoding module is also connected to the main control module, which is connected to the GPRS wireless communication module to send the alarm signal to the mobile terminal connected to the cloud server via the cloud server. The receiver includes a signal decoding module, an RF receiving module for wirelessly connecting to the RF transmitting module, and a buzzer and an LED indicator module respectively connected to the signal decoding module; The signal decoding module is connected to the radio frequency receiving module so that the signal received by the radio frequency receiving module is triggered by the buzzer and LED indicator module to alert the user with sound and light alarm.

2. The anti-theft alarm device for trucks according to claim 1, characterized in that: The anti-theft sensor also includes a first power supply circuit for powering the device.

3. The anti-theft alarm device for trucks according to claim 1, characterized in that: The receiver also includes a second power supply circuit for powering the receiver.

4. The anti-theft alarm device for trucks according to claim 1, characterized in that: The radio frequency receiving module includes a chip U11, a capacitor C2, a resistor R1, a crystal oscillator Y1, an inductor L1, a capacitor C1, a capacitor C4, a resistor R14, a resistor R16, a transistor Q3, a resistor R1, a transistor Q2, a resistor R14, a resistor R15, a resistor R16, a resistor R13, and an inductor L2. Pin 1 of chip U11 is grounded. Pin 1 of chip U11 is connected to pin 2 of chip U11 through capacitor C2. Pin 2 of chip U11 is used to connect to the 3V voltage terminal. Pin 3 of chip U11 is connected to the base of transistor Q3 through resistors R1 and R15. The emitters of transistors Q3 and Q2 are both grounded. The collector of transistor Q3 is connected to the base of transistor Q2 through resistor R16. Resistors R14 and R13 are connected in series. The non-series node of resistor R14 is connected to the collector of transistor Q3, and the non-series node of resistor R13 is connected to the collector of transistor Q2. The non-series node of resistor R13 is also connected to the signal decoding module. Pin 4 of chip U11 is grounded, pin 5 of chip U11 is grounded through crystal oscillator Y1, pin 8 of chip U11 is grounded through inductor L1, and pin 8 of chip U11 is also grounded through capacitor C3. One end of capacitor C1 is connected to pin 8 of chip U11, and the other end of capacitor C1 is used to connect to the ANT1 terminal. The other end of capacitor C1 is grounded through inductor L2, and capacitor C4 is connected in parallel with inductor L2.

5. The anti-theft alarm device for trucks according to claim 1, characterized in that: The spring vibration switch is connected to the signal encoding module via a sensitivity adjustment circuit.

6. The anti-theft alarm device for trucks according to claim 5, characterized in that: The sensitivity adjustment circuit includes resistors R25, R27, and R26, capacitors C12 and C13, a sliding rheostat R24, resistors R28 and R29, resistor R30, diode D1, transistor Q11, and transistor Q21. One end of each of resistors R25, R26, R28, and the variable resistor R24 ​​is connected to the VCC voltage terminal. The other end of resistor R28 is connected to pin 1 of the spring vibration switch. The other end of resistor R28 is also connected to the negative terminal of diode D1 through capacitor C13. The negative terminal of diode D1 is grounded through resistor R30. The positive terminal of diode D1 and the base of transistor Q11 are connected to the other end of resistor R26. The other end of resistor R25 is connected to the base of transistor Q21 through resistor R27. The other end of resistor R25 is also connected to the collector of transistor Q11. The emitters of both transistors Q11 and Q21 are grounded. The base of transistor Q21 is connected to the emitter of transistor Q21 through resistor R29. The collector of transistor Q21 is connected to the positive terminal of diode D1 through capacitor C12. The collector of transistor Q21 and the other end of variable resistor R24 ​​are both connected to the second main control circuit.

Images