CN113997902A - Window remote anti-theft alarm system and method based on spectrum analysis - Google Patents
Window remote anti-theft alarm system and method based on spectrum analysis Download PDFInfo
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- CN113997902A CN113997902A CN202111303058.XA CN202111303058A CN113997902A CN 113997902 A CN113997902 A CN 113997902A CN 202111303058 A CN202111303058 A CN 202111303058A CN 113997902 A CN113997902 A CN 113997902A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/34—Detection related to theft or to other events relevant to anti-theft systems of conditions of vehicle components, e.g. of windows, door locks or gear selectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/20—Communication devices for vehicle anti-theft devices
- B60R2325/205—Mobile phones
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to a car window remote anti-theft alarm system and a car window remote anti-theft alarm method based on spectrum analysis; the system comprises a vehicle state detection module, a remote control unit, a cloud end and a mobile phone end; the vehicle state detection module is used for detecting that the vehicle is in a vehicle body anti-theft state; the remote control unit transmits the information to the cloud end through a data network; the remote control unit comprises a remote control module vibration component, a remote control module sound component and a logic judgment unit; the remote control module sound component performs Fourier transform on sound to obtain a frequency spectrum, captures a central frequency point and sends the central frequency point to the logic judgment unit; the method comprises the steps that a logic judgment unit compares a central frequency point sent by a remote control module sound component with a frequency range of car window fragmentation, and judges whether the central frequency point is in the frequency range of the car window fragmentation or not; the logic judgment unit sends a signal of abnormal fragmentation of the car window to the cloud end; the invention improves the alarm control condition, increases the judgment of sound frequency spectrum contrast analysis and reduces the probability of false alarm due to single vibration condition.
Description
Technical Field
The invention relates to a vehicle window remote anti-theft alarm system and method based on spectrum analysis.
Background
In the prior art, the remote controller vibration module is used for detecting vehicle vibration to give an alarm, but the vibration generated to the vehicle body due to the fragmentation of the vehicle window is small, and the vehicle vibration detection can only be realized by improving the sensitivity of the vibration detection technology. Meanwhile, the influence of external environment, such as firecrackers, wind power and the like, can cause the vehicle body to generate micro vibration, so that the detection sensitivity is improved, and false alarm is easily caused. Therefore, the sensitivity of vibration detection needs to be reduced, so that the technology cannot accurately detect the alarm of vehicle window smashing at present.
The existing invention generally adopts a car window protective film, a car window conducting device and the like, the car manufacturing cost is increased due to the fact that parts need to be additionally arranged in the technology, and at present, a car window remote anti-theft alarm method based on sound frequency spectrum analysis does not exist.
Patent document 1(CN105292049A) relates to an automobile window anti-theft alarm, and belongs to the field of automobile anti-theft. The invention comprises the following steps: the contact module comprises a shell, a contact module and an anti-theft terminal controller, wherein a conductive plate is arranged in the shell, one end of the conductive plate is provided with a conductive contact, the other end of the conductive plate is connected with a lead, the lead is connected with the anti-theft terminal controller, and the anti-theft terminal controller is connected with a power supply; the vehicle window protective film is provided with an anti-theft wire, two ends of the anti-theft wire are respectively provided with a conducting strip, and the conducting strips on the anti-theft wire are connected with an anti-theft terminal controller through a contact on the contact module. When the anti-theft lead is deformed or disconnected, the alarm device in the anti-theft terminal controller is started and is sent to the alarm at the user end of the vehicle owner through the wireless module. The anti-theft window film of the invention is a new member of vehicle anti-theft, and becomes the gospel of the vehicle owner, and in the area with dense vehicles, the vehicle owner can not worry about the occurrence of the event that the thief breaks the window and enters the vehicle to steal articles.
Patent document 2(CN103543739B) the present invention provides a vehicle window anti-theft device, in which a printed circuit is integrated inside a vehicle window glass, a switching circuit is connected to form a path, power is supplied by a vehicle-mounted power supply, an output terminal of the switching circuit is connected to a driving circuit, an anti-theft fence is installed in a door below the vehicle window, when the vehicle window glass is broken, the printed circuit is short-circuited, the switching circuit activates the driving circuit to drive the anti-theft fence to ascend, and the vehicle window is blocked. The invention has simple structure and low cost, and can effectively prevent lawless persons from invading the vehicle before the vehicle owner arrives at the site, thereby protecting the property in the vehicle.
Patent document 3(CN106004995A) discloses a method for remotely controlling an automobile anti-flow alarm through mobile phone software, which belongs to the technical field of communication and mainly solves the problems of short transmission distance and inconvenient use of the traditional automobile anti-flow alarm. The system comprises a defense deploying process, an alarming process, an alarm receiving process, a defense withdrawing process and a positioning process, is used for controlling the mobile phone to remotely control the automobile anti-theft alarm through a public wireless communication network by using mobile phone software, and is based on the mobile phone software technology, the mobile phone map technology and the mobile communication technology, and the automobile anti-theft alarm is remotely controlled by using the control mobile phone to transmit short messages and voice information through the public wireless communication network by using the mobile phone software, so that the remote anti-theft alarm of the automobile can be realized. The invention simplifies the process that the user remotely controls the automobile anti-theft alarm through the mobile phone, shortens the operation time, avoids the misoperation caused by complicated and difficult short message formats, troublesome input or ringing waiting times, is simple and quick and is very convenient to use.
Disclosure of Invention
The invention mainly aims to solve the problem that when a vehicle is flamed out and no person is in the vehicle, the window of the vehicle is illegally crushed to steal the property in the vehicle. The existing remote control module vibration alarm technology is easily influenced by environmental factors such as firecrackers and wind noise which generate vibration, and is easy to send false alarm information to a mobile phone of a vehicle owner in special festivals, special weather and the like, so that the comfort of the vehicle owner in using the vehicle is influenced.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme, which is described by combining the accompanying drawings as follows:
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
A car window remote anti-theft alarm system based on spectrum analysis comprises a car state detection module, a remote control unit, a cloud end and a mobile phone end;
the vehicle state detection module is used for detecting that the vehicle is in a vehicle body anti-theft state;
the remote control unit transmits information to a cloud end through a data network and communicates with the mobile phone;
the cloud sends short message information to the mobile phone, and the mobile phone displays prompt information.
Furthermore, the remote control unit comprises a remote control module vibration component, a remote control module sound component and a logic judgment unit;
the remote control module vibration assembly is used for detecting vehicle body vibration;
the remote control module sound component is used for collecting sound, carrying out Fourier transform on the sound to obtain a frequency spectrum, capturing a central frequency point fx and sending the frequency spectrum to the logic judgment unit;
furthermore, the logic judgment unit stores the frequency range f1< f < f2 of the car window fragmentation, receives whether the central frequency point fx sent by the remote control module sound component is in the frequency range of the car window fragmentation, judges the car body vibration information sent by the remote control module vibration component at the same time, and outputs the prompt information to the cloud.
Preferably, said f1 is 44.52 Hz;
preferably, f2 is 49.99 Hz.
Further, the data network is a 2G or 3G or 4G or 5G data network.
A car window remote anti-theft alarm method based on spectrum analysis comprises the following steps:
the method comprises the following steps that firstly, a vehicle state detection module detects whether a vehicle is in a flameout fortification state or not;
step two, remotely controlling and activating the anti-theft mode of the vehicle window;
thirdly, detecting whether the vehicle body vibrates by the remote control module vibration assembly;
fourthly, the remote control module vibration assembly sends the vibration signal to a logic judgment unit;
step five, the remote control module sound component detects whether the vehicle body has sound;
sixthly, the sound component of the remote control module performs Fourier transform on the sound to obtain a frequency spectrum, captures a central frequency point fx and sends the frequency spectrum to a logic judgment unit;
comparing the central frequency point sent by the remote control module sound component with the frequency range of the car window fragmentation by the logic judgment unit, and judging whether the central frequency point is in the frequency range of the car window fragmentation or not;
step eight, the logic judgment unit sends a signal of abnormal fragmentation of the car window to the cloud end;
and step nine, the cloud sends a warning prompt of abnormal vehicle window fragmentation to the mobile phone.
And step ten, repeating the step one to the step nine.
Compared with the prior art, the invention has the beneficial effects that:
compared with the prior art, the invention perfects the alarm control condition on the basis of the remote control module vibration alarm technology, increases the judgment of sound frequency spectrum contrast analysis and reduces the probability of false alarm due to single vibration condition.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a vehicle window remote anti-theft alarm system based on spectrum analysis according to the present invention;
FIG. 2a is a schematic diagram of a time domain map of a car window shattering sound;
FIG. 2b is a schematic frequency domain map of vehicle window fracture;
FIG. 3 is a control flow chart of the method for remote anti-theft alarm of vehicle window based on spectrum analysis;
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The invention is described in detail below with reference to the attached drawing figures:
referring to fig. 1, the window remote anti-theft alarm system based on spectrum analysis of the present invention comprises the following components: the system comprises a vehicle state detection module, a remote control unit, a cloud end, a mobile phone end and the remote control unit (comprising a remote control module vibration component, a remote control module sound component and a logic judgment unit). The vehicle state detection module is used for detecting that the vehicle is in a vehicle body anti-theft state; the remote control unit can transmit information to the cloud end through a 4G network and communicate with the mobile phone; the remote control module vibration component is used for detecting vehicle body vibration; the remote control module sound component is used for collecting sound, carrying out Fourier transform on the sound to obtain a frequency spectrum, capturing a central frequency point fx and sending the frequency spectrum to the logic judgment unit; the logic judgment unit is used for storing the frequency point range f1< f < f2 of the car window fragmentation, receiving whether the central frequency point fx sent by the remote control module sound component is in the frequency point range of the car window fragmentation, judging car body vibration information sent by the remote control module vibration component, and outputting prompt information to the cloud; the cloud sends short message information to the mobile phone, and the mobile phone displays prompt information. According to Matlab simulation information, f1 is 44.52Hz, and f2 is 49.99 Hz.
Referring to fig. 2a and 2b, when a vehicle is in a defense setting after being flamed and parked, when the remote control module vibration assembly detects vibration of the vehicle and the remote control module sound assembly detects sound, the remote control module sound assembly performs fourier transform on the detected sound to generate a corresponding frequency spectrum, the logic judgment unit performs comparison analysis on the central frequency point of the frequency spectrum and the cracked sound frequency point range of the vehicle window, the central frequency point of the frequency spectrum is in the cracked sound frequency point range of the vehicle window and detects vibration of the vehicle, the vehicle window is considered to be illegally crushed, the remote control unit uploads the information to the cloud, the cloud sends information to a vehicle owner through a mobile phone short message to prompt that the vehicle is possibly dangerous to be illegally crushed, and the vehicle is checked as soon as possible.
Referring to fig. 3, a remote anti-theft alarm method for a vehicle window based on spectrum analysis includes the following steps:
the method comprises the following steps that firstly, a vehicle state detection module detects whether a vehicle is in a flameout fortification state or not;
step two, remotely controlling and activating the anti-theft mode of the vehicle window;
thirdly, detecting whether the vehicle body vibrates by the remote control module vibration assembly;
fourthly, the remote control module vibration assembly sends the vibration signal to a logic judgment unit;
step five, the remote control module sound component detects whether the vehicle body has sound;
sixthly, the sound component of the remote control module performs Fourier transform on the sound to obtain a frequency spectrum, captures a central frequency point fx and sends the frequency spectrum to a logic judgment unit;
comparing the central frequency point sent by the remote control module sound component with the frequency range of the car window fragmentation by the logic judgment unit, and judging whether the central frequency point is in the frequency range of the car window fragmentation or not;
step eight, the logic judgment unit sends a signal of abnormal fragmentation of the car window to the cloud end;
and step nine, the cloud sends a warning prompt of abnormal vehicle window fragmentation to the mobile phone.
And step ten, repeating the step one to the step nine.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims. And those not described in detail in this specification are well within the skill of those in the art.
Claims (8)
1. The utility model provides a long-range burglar alarm system of door window based on spectral analysis which characterized in that:
the system comprises a vehicle state detection module, a remote control unit, a cloud end and a mobile phone end;
the vehicle state detection module is used for detecting that the vehicle is in a vehicle body anti-theft state;
the remote control unit transmits information to a cloud end through a data network and communicates with the mobile phone;
the cloud sends short message information to the mobile phone, and the mobile phone displays prompt information.
2. The remote antitheft alarm system for vehicle windows based on spectral analysis of claim 1, wherein:
the remote control unit comprises a remote control module vibration assembly, a remote control module sound assembly and a logic judgment unit;
the remote control module vibration assembly is used for detecting vehicle body vibration;
the remote control module sound component is used for collecting sound, carrying out Fourier transform on the sound to obtain a frequency spectrum, capturing a central frequency point fx and sending the frequency spectrum to the logic judgment unit.
3. The remote anti-theft alarm system for vehicle windows based on spectral analysis according to claim 2, characterized in that:
the logic judgment unit is used for storing the frequency range f1< f < f2 of the car window fragmentation, receiving whether the central frequency point fx sent by the remote control module sound component is in the frequency range of the car window fragmentation or not, judging the car body vibration information sent by the remote control module vibration component at the same time, and outputting prompt information to a cloud.
4. The remote anti-theft alarm system for vehicle windows based on spectral analysis of claim 3, wherein:
the f1 is 44.52 Hz.
5. The remote anti-theft alarm system for vehicle windows based on spectral analysis of claim 4, wherein:
the f2 was 49.99 Hz.
6. The remote antitheft alarm system for vehicle windows based on spectral analysis of claim 1, wherein:
the data network is a 2G or 3G or 4G or 5G data network.
7. A method for performing remote anti-theft alarm of a vehicle window by using the remote anti-theft alarm system of the vehicle window based on the spectral analysis in claim 1, which is characterized by comprising the following steps:
the method comprises the following steps that firstly, a vehicle state detection module detects whether a vehicle is in a flameout fortification state or not;
step two, remotely controlling and activating the anti-theft mode of the vehicle window;
thirdly, detecting whether the vehicle body vibrates by the remote control module vibration assembly;
fourthly, the remote control module vibration assembly sends the vibration signal to a logic judgment unit;
step five, the remote control module sound component detects whether the vehicle body has sound;
sixthly, the sound component of the remote control module performs Fourier transform on the sound to obtain a frequency spectrum, captures a central frequency point fx and sends the frequency spectrum to a logic judgment unit;
comparing the central frequency point sent by the remote control module sound component with the frequency range of the car window fragmentation by the logic judgment unit, and judging whether the central frequency point is in the frequency range of the car window fragmentation or not;
step eight, the logic judgment unit sends a signal of abnormal fragmentation of the car window to the cloud end;
and step nine, the cloud sends a warning prompt of abnormal vehicle window fragmentation to the mobile phone.
8. The remote burglar alarm method for vehicle windows according to claim 7, further comprising:
and step ten, repeating the step one to the step nine.
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| CN202111303058.XA CN113997902A (en) | 2021-11-05 | 2021-11-05 | Window remote anti-theft alarm system and method based on spectrum analysis |
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| CN202111303058.XA CN113997902A (en) | 2021-11-05 | 2021-11-05 | Window remote anti-theft alarm system and method based on spectrum analysis |
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Cited By (1)
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| CN115190143A (en) * | 2022-06-22 | 2022-10-14 | 一汽奔腾轿车有限公司 | Remote prompting system and method for vehicle window opening |
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