Anti-theft cable protection device

Abstract

The utility model provides an anti-theft cable protection device, and belongs to the technical field of theft prevention. The anti-theft cable protection device comprises a power supply module, a main control circuit, a vibration sensor module, a GPS-GPRS module, a system protection module and an indication circuit, the main control circuit, the vibration sensor module, the GPS-GPRS module, the system protection module and the indication circuit are all connected with the power supply module; the vibration sensor module, the GPS-GPRS module, the system protection module and the indication circuit are all connected with the master control circuit. The power cable anti-theft alarm system has the functions of cable head protection, cable vibration detection and alarm, displacement alarm, GPS and Beidou dual-system positioning, GPRS wireless communication and the like, can improve the timeliness of thief tracking after a cable is stolen, strengthen the deterrence of the thief, reduce the theft of the power cable, improve the safety and lean management level of a power construction site, and improve the safety and reliability of the power construction site. The mechanical housing of the utility model can protect the cable head from dust and water.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-theft, and in particular relates to an anti-theft cable protection device. Background Art

[0002] With the accelerated pace of urban construction in my country, the demand for power transmission is increasing. New urban construction and renovation require the improvement of overhead power lines. Most governments require that existing overhead high-voltage lines be buried underground through cable tunnels, pipe corridors, or cable trenches. This approach purifies cities, improves the cleanliness of urban roads, and enhances the safety of public transportation. With the demand for underground power lines, power cables are being laid on a large scale. During this laying process, power cables are often cut or stolen. Using modern technologies to prevent power cable theft, locate stolen cables, and recover cable losses is an urgent issue.

[0003] Patent publication CN204596054U discloses a cable anti-theft circuit, comprising a power supply circuit, a voltage conversion circuit, a GPRS chipset, a single-chip microcomputer, an anti-theft signal output circuit, and a circuit restart circuit. The voltage conversion circuit, GPRS chipset, and single-chip microcomputer are all connected to the power supply circuit, which in turn is connected to the single-chip microcomputer. The device can process stolen cable information and upload it to confirm the location of the theft. However, it cannot transmit stolen information during the theft process and cannot track the subsequent movement of the stolen cable. Furthermore, the mechanical housing of the utility model provides dust and water protection for the cable head. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an anti-theft cable protection device to improve the timeliness of obtaining cable theft information and track the movement trajectory of the stolen cable to protect and recover the stolen cable.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The anti-theft cable protection device includes a power supply module, a main control circuit, a vibration sensor module, a GPS-GPRS module, a system protection module, and an indication circuit; the main control circuit, the vibration sensor module, the GPS-GPRS module, the system protection module, and the indication circuit are all connected to the power supply module; the vibration sensor module, the GPS-GPRS module, the system protection module, and the indication circuit are all connected to the main control circuit.

[0007] Furthermore, the power supply module, main control circuit, vibration sensor module, GPS-GPRS module, system protection module and indication circuit are all placed in the mechanical housing.

[0008] Furthermore, the power supply module includes a power conversion module, a power switch, an overcurrent protection device, a first capacitor, a second capacitor, a first diode, a first inductor, a third capacitor, and a fourth capacitor; the overcurrent protection device is connected in series with the power switch; the first capacitor and the second capacitor are connected in parallel and then in series with the first diode; the third capacitor and the fourth capacitor are connected in parallel; the power conversion module is connected in series with the first inductor; the first diode, the first inductor, the third capacitor and the fourth capacitor constitute a power module rectifier and filter circuit.

[0009] Furthermore, the main control circuit includes a single-chip microcomputer, a joint test working group, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a second inductor, a third inductor and a crystal oscillator; the fifth capacitor and the sixth capacitor are connected in series and then in parallel with the crystal oscillator; the seventh capacitor, the eighth capacitor and the ninth capacitor are connected in parallel; the second inductor and the third inductor are connected in series; the single-chip microcomputer and the joint test working group are connected through pins; the joint test working group is the program download interface of the single-chip microcomputer; the fifth capacitor, the sixth capacitor and the crystal oscillator constitute the external crystal start-up circuit of the single-chip microcomputer; the second inductor, the third inductor, the seventh capacitor, the eighth capacitor and the ninth capacitor constitute the single-chip microcomputer power supply filter protection circuit.

[0010] Furthermore, the vibration sensor module includes a vibration sensor and a tenth capacitor; the vibration sensor and the tenth capacitor are connected in parallel.

[0011] Furthermore, the GPS-GPRS module includes a GPS-GPRS module core and an eleventh capacitor; the GPS-GPRS module core includes a GPS module and a GPRS module; the GPS-GPRS module core and the eleventh capacitor are connected in parallel; the GPS-GPRS module core model is Air820.

[0012] Furthermore, the system protection module includes a power monitoring chip with a watchdog, a twelfth capacitor and a first resistor; the twelfth capacitor is connected in parallel with the first resistor; and the power monitoring chip with a watchdog is connected in parallel with the twelfth capacitor.

[0013] Furthermore, the indication circuit includes a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a second resistor, a third resistor and a fourth resistor; the first light-emitting diode is connected in series with the fourth resistor; the second light-emitting diode is connected in series with the second resistor; and the third light-emitting diode is connected in series with the third resistor.

[0014] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention has the functions of cable vibration detection and alarm, GPS and Beidou dual system positioning and GPRS / 4G wireless communication, which can improve the timeliness of tracking thieves after the cable is stolen, strengthen the deterrent to thieves, reduce the theft of power cables, and improve the safety and lean management level of power construction sites. In addition, the mechanical housing of the present invention has dust-proof and waterproof protection for the cable head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in further detail below with reference to the accompanying drawings.

[0016] Figure 1 : Schematic diagram of the utility model anti-theft cable protection device;

[0017] Figure 2 : A schematic diagram of the structure of the utility model anti-theft cable protection device; DETAILED DESCRIPTION

[0018] To better understand the present invention, the following examples further illustrate the present invention. However, the present invention is not limited to the following examples. In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be practiced without one or more of these details.

[0019] The working principle of this device is now described in detail with reference to the accompanying drawings:

[0020] like Figure 1 As shown, the anti-theft cable protection device includes a power module, a main control circuit, a vibration sensor module, a GPS-GPRS module, a system protection module, an indicator circuit, and a mechanical housing. The main control circuit, vibration sensor module, GPS-GPRS module, system protection module, and indicator circuit are all connected to the power module; the vibration sensor module, GPS-GPRS module, system protection module, and indicator circuit are all connected to the main control circuit.

[0021] like Figure 2As shown, the power module uses a switching power supply, including a power conversion module U5, a power switch S1, an overcurrent protection device F1, a first capacitor C9, a second capacitor C10, a first diode D1, a first inductor L1, a third capacitor C11, and a fourth capacitor C12. The power module converts 8.4V DC power into a 5V DC power supply to power the device. Closing the power switch S1 starts the device, and disconnecting it shuts it down. The overcurrent protection device F1 is connected in series with the power switch S1. The first capacitor C9 and the second capacitor C10 are connected in parallel, and then in series with the first diode D1. The third capacitor C11 and the fourth capacitor C12 are connected in parallel. The power conversion module U5 is connected in series with the first inductor L1. The first diode D1, the first inductor L1, the third capacitor C11, and the fourth capacitor C12 form the switching power module's rectifier and filter circuit. The power conversion module U5 uses an LM256S-5.0V voltage regulator.

[0022] like Figure 2 As shown, the main control circuit includes a single-chip microcomputer U1, a joint test working group J3, a fifth capacitor C1, a sixth capacitor C2, a seventh capacitor C3, an eighth capacitor C4, a ninth capacitor C5, a second inductor L2, a third inductor L3, and a crystal oscillator Y1. The joint test working group J3 is the program download interface for the single-chip microcomputer U1; the fifth capacitor C1, the sixth capacitor C2, and the crystal oscillator Y1 constitute the external crystal start-up circuit of the single-chip microcomputer U1; the second inductor L2, the third inductor L3, the seventh capacitor C3, the eighth capacitor C4, and the ninth capacitor C5 constitute the power supply filter protection circuit of the single-chip microcomputer U1; the fifth capacitor C1 and the sixth capacitor C2 are connected in series and then in parallel with the crystal oscillator Y1; the seventh capacitor C3, the eighth capacitor C4, and the ninth capacitor C5 are connected in parallel; the single-chip microcomputer U1 is connected to the joint test working group J3 via pins; the second inductor L2 and the third inductor L3 are connected in series; and the single-chip microcomputer U1 receives the vibration alarm signal from the vibration sensor U3 via pin 42. MCU U1 communicates with the GPS-GPRS module core U4 via pins 22 and 21, sending the device's GPS location information and alarm information to the backend. MCU U1 detects the GPS-GPRS module status via pins 18, 29, and 20. MCU U1 uses an ARM-Cortex-M4 core.

[0023] like Figure 2 As shown, the vibration sensor module includes a vibration sensor U3 and a tenth capacitor C6; these two capacitors are connected in parallel. The vibration sensor module can detect whether the device is stationary and distinguish between free fall and vibration. The signal is transmitted via pin 2 of the vibration sensor U3 to pin 42 of the microcontroller U1, conveying the device's status to the main control circuit for data analysis and processing. The vibration sensor U3 uses the SCM-C100 model.

[0024] like Figure 2 As shown, the GPS-GPRS module includes the GPS-GPRS module core U4 and the eleventh capacitor C7; the GPS-GPRS module core U4 and the eleventh capacitor C7 are connected in parallel; the GPS-GPRS module core U4 includes a GPS module and a GPRS module; the GPS module uses GPS and Beidou dual positioning and navigation technology; the GPRS module uses 4G communication technology; the GPS module determines its own latitude and longitude by receiving signals from positioning satellites and sends this information to the main control circuit via pin 4 of the GPS-GPRS module core U4; the GPRS module completes data communication with the backend, and the main control circuit sends vibration alarm and displacement alarm information to the GPS-GPRS module via pin 21 of the single-chip microcomputer U1. The GPRS module then uploads the information to the backend via the GPRS module, completing the reporting of positioning information and alarm information. The GPRS module can also complete the download of control parameters. The GPS-GPRS module core U4 uses the Air820 model.

[0025] like Figure 2 As shown, the system protection module includes a power monitoring chip U2 with a watchdog function, a twelfth capacitor C8, and a first resistor R1; the twelfth capacitor C8 is connected in parallel with the first resistor R1; the power monitoring chip U2 with a watchdog function is connected in parallel with the twelfth capacitor C8; the system protection module is responsible for power-on reset and operation monitoring to prevent system crashes and program runaway; during operation of the main control circuit, pin 4 of the main control circuit's single-chip microcomputer U1 must regularly send a dog-feeding instruction to pin 4 of the power monitoring chip U2 with a watchdog function in the system protection module; otherwise, pin 1 of the power monitoring chip U2 with a watchdog function in the system protection module sends a reset level to pin 24 of the main control circuit's single-chip microcomputer, causing the main control circuit to restart and reset. The power monitoring chip U2 with a watchdog function uses the STM6822SWY6F model.

[0026] like Figure 2As shown, the indicator circuit includes a first light-emitting diode (LED1), a second light-emitting diode (LED2), a third light-emitting diode (LED3), a second resistor (R2), a third resistor (R3), and a fourth resistor (R4). The first light-emitting diode (LED1) is connected in series with the fourth resistor (R4), the second light-emitting diode (LED2) is connected in series with the second resistor (R2), and the third light-emitting diode (LED3) is connected in series with the third resistor (R3). The second light-emitting diode (LED2) and the second resistor (R2) form the device operation indicator circuit. When the device is successfully powered on and initialized, a low-level signal is output to pin 5 of the microcontroller (MCU) U1, illuminating the second light-emitting diode (LED2) and indicating the device's operating status. The third light-emitting diode (LED3) and the third resistor (R3) form the device alarm indicator circuit. When an alarm event is detected during device operation, a pulse signal is output to pin 6 of the MCU (MCU) U1, causing the third light-emitting diode (LED3) to flash, indicating the alarm status. The first light-emitting diode LED1 and the fourth resistor R4 form the online indication circuit of the device GPS-GPRS module. After the device GPS-GPRS module is initially put online, pin 6 of the GPS-GPRS module core U4 notifies the main control circuit. After the main control circuit receives the signal, it outputs a low level to pin 7 of the main control circuit's microcontroller U1 to light up the first light-emitting diode LED1, indicating the online status of the GPS-GPRS module.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An anti-theft cable protection device, characterized in that: It includes a power supply module, a main control circuit, a vibration sensor module, a GPS-GPRS module, a system protection module and an indication circuit; the main control circuit, the vibration sensor module, the GPS-GPRS module, the system protection module and the indication circuit are all connected to the power supply module; the vibration sensor module, the GPS-GPRS module, the system protection module and the indication circuit are all connected to the main control circuit.

2. The anti-theft cable protection device according to claim 1, characterized in that: The power supply module, main control circuit, vibration sensor module, GPS-GPRS module, system protection module and indication circuit are all placed in the mechanical shell.

3. The anti-theft cable protection device according to claim 1, characterized in that: The power supply module includes a power conversion module, a power switch, an overcurrent protection device, a first capacitor, a second capacitor, a first diode, a first inductor, a third capacitor, and a fourth capacitor; the overcurrent protection device is connected in series with the power switch; the first capacitor and the second capacitor are connected in parallel and then in series with the first diode; the third capacitor and the fourth capacitor are connected in parallel; the power conversion module is connected in series with the first inductor; the first diode, the first inductor, the third capacitor and the fourth capacitor constitute a rectifier and filter circuit of the power supply module.

4. The anti-theft cable protection device according to claim 1, characterized in that: The main control circuit includes a single-chip microcomputer, a joint test working group, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a second inductor, a third inductor and a crystal oscillator; the fifth capacitor and the sixth capacitor are connected in series and then in parallel with the crystal oscillator; the seventh capacitor, the eighth capacitor and the ninth capacitor are connected in parallel; the second inductor and the third inductor are connected in series; the single-chip microcomputer and the joint test working group are connected through pins; the joint test working group is the program download interface of the single-chip microcomputer; the fifth capacitor, the sixth capacitor and the crystal oscillator constitute the external crystal start-up circuit of the single-chip microcomputer; the second inductor, the third inductor, the seventh capacitor, the eighth capacitor and the ninth capacitor constitute the single-chip microcomputer power supply filter protection circuit.

5. The anti-theft cable protection device according to claim 1, characterized in that: The vibration sensor module includes a vibration sensor and a tenth capacitor; the vibration sensor and the tenth capacitor are connected in parallel.

6. The anti-theft cable protection device according to claim 1, characterized in that: The GPS-GPRS module includes a GPS-GPRS module core and an eleventh capacitor; the GPS-GPRS module core includes a GPS module and a GPRS module; the GPS-GPRS module core and the eleventh capacitor are connected in parallel; the GPS-GPRS module core model is Air820.

7. The anti-theft cable protection device according to claim 1, characterized in that: The system protection module includes a power monitoring chip with a watchdog, a twelfth capacitor and a first resistor; the twelfth capacitor is connected in parallel with the first resistor; and the power monitoring chip with a watchdog is connected in parallel with the twelfth capacitor.

8. The anti-theft cable protection device according to claim 1, characterized in that: The indicating circuit includes a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a second resistor, a third resistor and a fourth resistor; the first light-emitting diode is connected in series with the fourth resistor; the second light-emitting diode is connected in series with the second resistor; and the third light-emitting diode is connected in series with the third resistor.

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