Campus anti-spoofing system
By integrating components such as a recording device, a main control chip, and a GSM module, and combining voice recognition and GSM functions, the problem of difficult operation and network disconnection of the campus anti-bullying terminal has been solved, enabling students with mobility difficulties to make independent calls for help and communicate when the network is interrupted.
Patent Information
- Application Number
- CN202520013416.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing campus anti-bullying terminals are difficult to operate, especially for students with mobility impairments, and cannot achieve device communication and distress call functions when the network is disconnected.
It employs a combination of recording device, main control chip, GSM module, power amplifier, relay and alarm device, combined with voice recognition and GSM function, to achieve autonomous triggering of emergency calls and communication in the event of network outage.
It enables students with mobility impairments to independently call for help and dial for help through a global communication system when the network is disconnected, ensuring the effective operation of the equipment under adverse conditions.
Smart Images
Figure CN223884059U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a campus security field especially is related to a campus anti-bullying system. BACKGROUND
[0002] In the modern society, campus bullying is a serious social problem, not only cause great harm to the students' physical and mental health, also bring negative influence to the school education and management.
[0003] The existing anti-bullying terminal usually adopts the physical button mode to realize the help-seeking function, that is, when needing help, the user needs to manually press a button to trigger the help-seeking signal, for some students who are inconvenient to move, there may be operation difficulty. In addition, the existing anti-bullying terminal cannot realize device communication when the network is disconnected, which will cause the help-seeking function to fail.
[0004] Therefore, how to ensure the effective use of the campus anti-bullying terminal function has become a technical problem to be solved by the technical personnel in the field. SUMMARY
[0005] The utility model provides a kind of campus anti-bullying system to ensure that anti-bullying terminal realizes function under adverse conditions.
[0006] To solve the above technical problems, the utility model embodiment provides a kind of campus anti-bullying system, including recording device, main control chip, GSM module, power amplifier, first relay, second relay and alarm device.
[0007] The output end of the recording device is connected with the input end of the first relay, the output end of the first relay is connected with the input end of the main control chip, and the input end of the GSM module is connected with the output end of the main control chip.
[0008] The output end of the main control chip is connected with the input end of the second relay, the output end of the second relay is connected with the input end of the power amplifier, and the output end of the power amplifier is connected with the input end of the alarm device.
[0009] Further, the GSM module has a communication interface.
[0010] Further, the main control chip includes echo canceller, noise reducer, signal amplifier, digital-to-analog converter and sound trigger connected in sequence.
[0011] Further, the chip model of the GSM module is A7680C.
[0012] Further, the chip model of the power amplifier is PAM8303.
[0013] Further, the system further comprises a cloud network interface matched with a cloud server of the outside world.
[0014] Further, the alarm device comprises a loudspeaker and a Led lamp group.
[0015] Further, the recording device is a digital pickup.
[0016] Further, the recording device comprises a limiter and a small signal amplification circuit composed of a double triode.
[0017] Further, the system further comprises an automatic dialing component.
[0018] Compared with the prior art, the beneficial effects of the embodiments of the utility model lie in at least one of the following:
[0019] (1) by utilizing voice recognition and other key words, self-ability triggering is realized, and automatic connection of the total station equipment is carried out to call for help, which is convenient for students who are inconvenient to move or whose actions are limited;
[0020] (2) embedding GSM function, can use global communication system to dial specified fixed telephone when network is disconnected, and realize calling for help. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The structural block diagram of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0022] Figure 2 The circuit diagram of the recording device of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0023] Figure 3 The circuit diagram of the first relay of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0024] Figure 4 The structural block diagram of the main control chip of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0025] Figure 5 The circuit diagram of the GSM module of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0026] Figure 6 The circuit diagram of the second relay of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0027] Figure 7 The circuit diagram of the power amplifier of the campus bullying prevention system provided by the embodiments of the utility model is shown in the figure;
[0028] Figure 8The utility model provides a terminal of the application campus anti-bullying system whole machine connection drawing. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The purpose of providing these embodiments is to make the disclosed contents of the utility model more thorough and comprehensive. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.
[0030] In the description of the present application, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" and the like can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.
[0031] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions used in this paper are only for the purpose of description, and cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. The term "and / or" used in this paper includes any and all combinations of one or more related listed items. For the ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0032] In the description of the present application, it should be noted that, unless otherwise defined, all technical and scientific terms used in the utility model have the same meaning as understood by those skilled in the art. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model. For the ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] An embodiment of the utility model provides a kind of campus anti-bullying system, specifically, please see Figure 1 ,Figure 1 The structural block diagram of the campus bullying prevention system shown in one of the embodiments of the utility model, including recording device, main control chip, GSM module, power amplifier, first relay, second relay and alarm device.
[0034] The output end of the recording device is connected with the input end of the first relay, the output end of the first relay is connected with the input end of the main control chip, and the input end of the GSM module is connected with the output end of the main control chip.
[0035] The output end of the main control chip is connected with the input end of the second relay, the output end of the second relay is connected with the input end of the power amplifier, and the output end of the power amplifier is connected with the input end of the alarm device.
[0036] Among them, the first relay and the second relay are distributed as input relays and output relays for switching input and output channels.
[0037] The GSM module has a communication interface.
[0038] The GSM module embeds GSM function, and can dial a designated fixed phone to realize help-seeking when the network is disconnected, so that the communication and help-seeking function of the device can still be realized when the network is disconnected.
[0039] The main control chip includes an echo canceller, a noise reducer, a signal amplifier, a digital-to-analog converter and a sound trigger connected in sequence.
[0040] The main control chip is embedded with AEC echo canceller, ANR noise reducer, AGC automatic gain controller, AMP signal amplifier, DAC digital-to-analog converter, AED sound trigger (voice recognition) and other modules, which process and recognize the sound. By using voice recognition and other key words, self-triggering is realized, and the device is automatically connected to the main device to call for help. If the caller is not convenient, he can call for help by shouting "help" or "don't hit me" or "save me", and the device will recognize and dial the main machine automatically.
[0041] The chip model of the GSM module is A7680C.
[0042] The chip model of the power amplifier is PAM8303.
[0043] The power amplifier is used to amplify the output sound of the main control and drive the speaker of the alarm device.
[0044] The system further comprises a cloud network interface matched with a cloud server outside.
[0045] The alarm device comprises a speaker and a Led lamp group.
[0046] Upon triggering the event, the alarm device's speaker and LED lights respond simultaneously, issuing an alarm and flashing lights in a coordinated alarm sequence.
[0047] The recording device is a digital microphone.
[0048] The recording device includes a limiter and a small-signal amplifier circuit composed of dual transistors.
[0049] Specifically, such as Figure 2 As shown, the recording device uses dual transistors (Q3, Q4), external capacitors, and external resistors to form a small-signal amplifier circuit. C12 is the signal coupling input capacitor, C7 and C17 are filter capacitors, C8 is the signal coupling input capacitor, and R11 and R18 provide a bias power supply for transistor Q4 through a voltage divider. All of these together constitute the small-signal amplifier circuit. L2, C18, R17, R13, and R12 form the signal filtering circuit. R10 and Q3 enhance the signal driving capability. After amplification, the small signal is fed to the limiter U3 (NJU2762), and the output of U3 is connected to the input relay. The introduction of the limiter can improve the dynamic gain of the input signal and prevent excessive signal distortion.
[0050] like Figure 3 As shown, the first relay is used to switch channels. MIC_OUT is the output connection identifier for the recording device. It is coupled to pin 7 of U3 in the recording device via capacitor C21. CH1_GSM is the analog input connection identifier for the GSM module. It is connected to the analog input interface of the GSM module. CH1_GSM is the analog input connection identifier for the main control chip. It is connected to the analog input interface of the main control chip.
[0051] like Figure 4 As shown, the main control chip performs AEC echo cancellation, ANR noise reduction, AGC automatic gain control, AMP signal amplification, and DAC digital-to-analog conversion on the picked-up signal before transmitting it to the remote device via the network. The remote device transmits the digital signal via the network to its local decoder and outputs it to the power amplifier module. AED sound trigger recognition enables triggering of key sound events. It autonomously performs voice recognition for backward dialing or paging. Specifically, ADC / DAC are analog-to-digital converters used for analog and digital-to-analog conversion; AGC is automatic gain control used to control output gain; ANR is noise reduction; AEC is echo cancellation used to eliminate and suppress feedback; AED is sound event monitoring and sound trigger recognition; AI is an analog input interface for signal input; AI is an analog output interface for signal output; NET is a network interface used for network data exchange; and ANR is noise reduction used to remove persistent, fixed-frequency noise from the environment.
[0052] The circuit diagram of the GSM module is as follows: Figure 5As shown, when the GSM module is enabled, the first relay switches the channel.The recording device and the GSM module are connected, and the system further comprises an automatic dialing component, and the host controls the GSM to realize fixed-time dialing operation through AT instruction.The GSM realizes mobile call, after being connected, CH2 GSM picks up the sound to the far end.The OUT2 GSM plays the sound of the far end.
[0053] The circuit diagram of the second relay is as shown in Figure 6 The circuit diagram of the power amplifier is as shown in Figure 7
[0054] As shown, Figure 8 Figure 8 The whole machine connection diagram of the terminal of the campus anti-bullying system provided by the embodiment and applying the scheme is shown.
[0055] Specifically, the recording device is used for environmental sound, when the voice recognition occurs bullying, the host chip processes the signal, extracts or identifies the required signal, triggers the help function, and the terminal realizes help intercom to the system switchboard, realizes two-way intercom.At the same time, the host chip controls the Led light to flicker, and the loudspeaker emits the whistle.
[0056] At this time, if the host detects network disconnection or connection exception, the host chip enables the GSM module to transmit the position information.
[0057] The campus anti-bullying system of the utility model realizes self-triggering, automatically connects the main station equipment to help, and is convenient for students who are inconvenient to move or have limited action to use;GSM function is embedded, can use global communication system to dial a specified fixed phone when the network is disconnected, and realize help.
[0058] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model.Therefore, it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A campus anti-bullying system, characterized by, The system comprises a recording device, a main control chip, a GSM module, a power amplifier, a first relay, a second relay and an alarm device. An output end of the recording device is connected with an input end of the first relay, an output end of the first relay is connected with an input end of the main control chip, and an input end of the GSM module is connected with an output end of the main control chip. An output end of the main control chip is connected with an input end of the second relay, an output end of the second relay is connected with an input end of the power amplifier, and an output end of the power amplifier is connected with an input end of the alarm device.
2. The campus bullying prevention system of claim 1, wherein, The GSM module has a communication interface.
3. The campus anti-bullying system of claim 1, wherein, The main control chip comprises an echo canceller, a noise reducer, a signal amplifier, a digital-to-analog converter and a sound triggerer which are connected in sequence.
4. The campus bullying prevention system of claim 2, wherein, The chip model of the GSM module is A7680C.
5. The campus bullying prevention system of claim 1, wherein, The chip model of the power amplifier is PAM8303.
6. The campus bullying prevention system of claim 1, wherein, The system further comprises a cloud network interface matched with a cloud server of the outside world.
7. The campus bullying prevention system of claim 1, wherein, The alarm device comprises a loudspeaker and a Led lamp group.
8. The campus bullying prevention system of claim 1, wherein, The recording device is a digital sound pickup device.
9. The campus bullying prevention system of claim 1, wherein, The recording device comprises a limiter and a small signal amplification circuit composed of double triodes.
10. The anti-bullying system of claim 1, wherein, The system further comprises an automatic dialing component.