CN210377739U

CN210377739U - Cable burglar alarm

Info

Publication number: CN210377739U
Application number: CN201921150724.9U
Authority: CN
Inventors: 姚建杰; 陈少梅; 陈健飞; 吴少如
Original assignee: Guangzhou Xinwei Electronic Technology Co ltd
Current assignee: Guangzhou Xinwei Electronic Technology Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-04-21
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to a cable theftproof technical field based on thing networking, in particular to cable burglar alarm, its characterized in that: including power module, data transmission module, CPU, current detection module, resistance detection module, power module is associative with CPU, data transmission module, current detection module, resistance detection module, current detection module links to each other with CPU, and resistance detection module links to each other with CPU, and CPU links to each other with data transmission module, CPU receives the numerical value send instruction that is detected by current voltage detection module and resistance detection module and gives data transmission module, can know the cable condition fast, has increased the reliable and stable nature that the cable detected, and the cost is reduced, and simple to operate saves manpower and materials.

Description

Cable burglar alarm

Technical Field

The utility model relates to a thing networking field especially relates to a cable burglar alarm.

Background

The cable is an important component of a power grid, is one of the most basic urban construction elements, plays a very key role in daily life and urban normalized operation of people, has a power transmission function of the cable which cannot be separated for civil or industrial use, but is difficult to prevent theft because the cable is basically constructed outdoors, is difficult to prevent theft once being stolen, is very difficult to arrest theft, particularly has huge economic loss, needs to consume a large amount of manpower and material resources to recover, and brings great inconvenience to normal life of people.

The existing outdoor current detection anti-theft device mainly judges whether a circuit cable is stolen or not by detecting whether the cable has current to pass through, when the street lamp and other electric appliances are not needed to be used in daytime and the like, a cable switch is closed, no current passes through the cable, and at the moment, the condition is the same as that of cable breakage, and misjudgment is easy to occur.

Disclosure of Invention

The utility model discloses a purpose is overcome prior art not enough, provides a cable detection reliable and stable nature, reduces the cost, and simple to operate uses manpower sparingly the cable burglar alarm of material resources.

In order to achieve the aim, the utility model provides a cable burglar alarm, including power module, data transmission module, CPU, current detection module, resistance detection module, CPU links to each other with data transmission module, current detection module, resistance detection module, CPU receives the data that are detected by current detection module and resistance detection module, CPU sends the disconnected cable signal for the theftproof host computer according to received electric current, resistance data and reports to the police.

Furthermore, the power module comprises a rectifying and filtering circuit for converting commercial power into 12V direct current and a first voltage reduction circuit for converting the 12V direct current into 5V direct current.

Further, the rectifying and filtering circuit comprises a rectifying chip D3 with the model number MB6S and a filtering capacitor C7.

Further, the first step-down voltage comprises an AS1117 power supply chip.

Further, the data transmission module comprises a communication chip U4, an optical coupler U2, an optical coupler U3 and an optical coupler U6.

Further, the CPU is composed of an ATMEGA8A chip.

Further, the current detection module comprises transformers CT1 and CT2 and parameter acquisition resistors R15 and R16.

Further, the resistance detection module includes a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a diode D12, and a diode D12, where one end of the resistor R12 and one end of the resistor R12 are connected to a twenty-seventh array foot of the CPU chip U12, one end of the resistor R12 and one end of the resistor R12 are connected to a twenty-fifth array foot of the CPU chip U12, and one end of the resistor R12 are connected to a twenty-sixth array foot of the CPU chip U12.

The utility model has the advantages that: utilize the inductance to be responsible for gathering the circuit current, cable detection module is responsible for detecting the current numerical value and the terminal resistance value that the inductance was gathered, the monitoring host computer is responsible for receiving cable module and sends and comes the cable break-make signal, then report to the police through the SMS mode, it judges whether stolen to have the electric current to pass through to judge the circuit cable by detecting the cable among the avoiding prior art, when daytime etc. need not use electrical apparatus such as street lamp, close cable switch, the cable will not have the electric current to pass through, at this moment the situation is the same with "disconnected cable", the misjudgement appears very easily, can know the cable condition fast, the reliable and stable nature that the cable detected has been increased, the cost is reduced, high durability and convenient.

Drawings

For the purpose of illustration, the invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.

Fig. 1 is a schematic block diagram of a cable burglar alarm according to the present invention;

FIG. 2 is a schematic diagram of a power module of the cable burglar alarm device according to the present invention;

fig. 3 is a schematic diagram of a data transmission module of the cable burglar alarm device according to the present invention;

FIG. 4 is a schematic diagram of a current detection module of the cable burglar alarm device according to the present invention;

FIG. 5 is a schematic diagram of a resistance detection module of the cable burglar alarm device according to the present invention;

FIG. 6 is a CPU schematic diagram of the cable burglar alarm device according to the present invention;

Detailed Description

The utility model discloses a cable burglar alarm do further explanation with reference to the attached drawing below:

as shown in fig. 1, 2, 3, 4, 5, and 6, a cable burglar alarm device includes a power module, a data transmission module, a CPU, a current detection module, and a resistance detection module, where the CPU is connected to the data transmission module, the current detection module, and the resistance detection module, the CPU receives data detected by the current detection module and the resistance detection module, and the CPU sends a cable breakage signal to an antitheft host through the data transmission module according to the received current and resistance data to alarm.

The power supply module comprises a rectifying and filtering circuit for converting commercial power into 12V direct current and a first voltage reduction circuit for converting the 12V direct current into 5V direct current.

The rectifying and filtering circuit comprises a rectifying chip D3 with the model number MB6S and a filtering capacitor C7.

The first step-down voltage comprises an AS1117 power supply chip.

The data transmission module includes communication chip U4, opto-coupler U2, opto-coupler U3, opto-coupler U6, and the opto-coupler effect is kept apart communication chip U4 and power, prevents that communication data from receiving the interference.

The CPU is composed of an ATMEGA8A chip, is mainly used for processing data and judging the on-off of a cable, and transmits an on-off signal to the data transmission module.

The current detection module comprises transformers CT1 and CT2 and parameter acquisition resistors R15 and R16.

The resistance detection module comprises a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a diode D12 and a diode D12, wherein one end of the resistor R12 and one end of the resistor R12 are connected with a twenty-seventh array pin of the CPU chip U12, one end of the resistor R12 and one end of the resistor R12 are connected with the twenty-fifth array pin of the CPU chip U12, and one end of the resistor R12 are connected with the twenty-sixth array pin of the CPU chip U12.

Example (b):

the cable anti-theft alarm device is characterized in that a cable detection module is used for judging a cable, and a current resistance detection module is composed of a power supply, a CPU, a current detection module, a resistance detection module and a data transmission module. The power supply is responsible for converting an input power supply into a 12V power supply of the current detection module and the data transmission module and converting the input power supply into a 5V power supply required by the CPU and the resistance detection module. The current detection module depends on whether current passes when detecting the cable start, and after detecting that no current passes through the circuit when detecting the current detection end, information feedback to CPU, CPU start resistance detection module carries out resistance detection to the end of connecting on the cable, if CPU processing data finds that the cable has not had current flow through nor has resistance value, send the disconnected cable signal to the theftproof host computer through data transmission module and report to the police.

The utility model discloses utilize the inductance to be responsible for the acquisition circuit electric current, cable detection module is responsible for the electric current numerical value and the terminal resistance value that detect the inductance and gather, monitoring host is responsible for receiving cable module and sends cable break-make signal, then report to the police through the SMS mode, it is stolen whether to have the electric current to pass through to judge the circuit cable by detecting the cable among the avoiding prior art, when daytime etc. need not use electrical apparatus such as street lamp, close cable switch, the cable will not have the electric current to pass through, at this moment situation is the same with "disconnected cable", the misjudgement appears very easily, can know the cable condition fast, the reliable and stable nature that the cable detected has been increased, the cost is reduced, high durability and convenient installation, the.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cable burglar alarm device is characterized in that: the anti-theft alarm device comprises a power supply module, a data transmission module, a CPU, a current detection module and a resistance detection module, wherein the CPU is connected with the data transmission module, the current detection module and the resistance detection module, the CPU receives data detected by the current detection module and the resistance detection module, and sends a cable breaking signal to an anti-theft host through the data transmission module to give an alarm according to the received current and resistance data.

2. The cable burglar alarm arrangement according to claim 1, further comprising a power module, said power module comprising a rectifying and filtering circuit for converting a commercial power into a 12V dc power, and a first voltage-reducing circuit for converting the 12V dc power into a 5V dc power.

3. The cable burglar alarm device according to claim 2, wherein said rectifying and filtering circuit comprises a rectifying chip D3 and a filtering capacitor C7 of MB6S type.

4. The anti-theft alarm device for cable of claim 2, wherein said first voltage drop comprises a power chip of type AS 1117.

5. A cable burglar alarm arrangement according to claim 1, further comprising: the data transmission module comprises a communication chip U4, an optical coupler U2, an optical coupler U3 and an optical coupler U6.

6. A cable burglar alarm arrangement according to claim 1, further comprising: the CPU consists of ATMEGA8A chips.

7. A cable burglar alarm arrangement according to claim 1, further comprising: the current detection module comprises transformers CT1 and CT2 and parameter acquisition resistors R15 and R16.

8. A cable burglar alarm arrangement according to claim 1, further comprising: the resistance detection module comprises a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a diode D12 and a diode D12, wherein one end of the resistor R12 and one end of the resistor R12 are connected with a twenty-seventh array pin of the CPU chip U12, one end of the resistor R12 and one end of the resistor R12 are connected with the twenty-fifth array pin of the CPU chip U12, and one end of the resistor R12 are connected with the twenty-sixth array pin of the CPU chip U12.