Anti-secret-stealing conference system with ultrasonic interference circuit

Abstract

The utility model relates to the technical field of conference communication, and particularly discloses an anti-secret-stealing conference system with an ultrasonic interference circuit, which comprises an anti-secret-stealing master control circuit, the ultrasonic interference circuit, an alarm circuit, an alarm indicating lamp circuit, a power supply circuit, a reset circuit and a key verification circuit, the main control circuit is electrically connected with the ultrasonic interference circuit, the alarm circuit, the alarm indicating lamp circuit, the power supply circuit, the reset circuit and the key verification circuit, and the power supply circuit is electrically connected with the ultrasonic interference circuit. According to the utility model, the ultrasonic interference circuit is additionally arranged, and the ultrasonic interference circuit is started to emit ultrasonic waves in the conference process, so that an eavesdropping or recording device is interfered by the ultrasonic waves, conference information is effectively prevented from being recorded and stolen, and the security is good.

Description

Technical Field

[0001] The utility model relates to the technical field of conference communication, in particular to an anti-theft conference system with an ultrasonic interference circuit. Background Art

[0002] With the rapid development of society, communication is becoming more and more frequent, and information exchange and discussion of various activities are often carried out in the form of meetings. Conference systems are used for meetings with many participants, such as parliaments. Conference systems usually consist of a control unit, multiple discussion units connected to the control unit via communication lines (wired or wireless), and microphones installed on the discussion units. At present, in some important activities or confidential meetings, the risk of leakage is high, and the existing conference system does not have an anti-theft function, which can easily lead to the recording and theft of conference information by criminals, posing a great security risk. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, an anti-theft conference system with an ultrasonic interference circuit is provided. By adding an ultrasonic interference circuit, the ultrasonic interference circuit is started to emit ultrasonic waves during the meeting, thereby using ultrasonic waves to interfere with eavesdropping or recording equipment, effectively preventing conference information from being recorded and stolen, and having good security.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] An anti-theft conference system with an ultrasonic interference circuit includes an anti-theft main control circuit, an ultrasonic interference circuit, an alarm circuit, an alarm indicator light circuit, a power supply circuit, a reset circuit and a key verification circuit. The main control circuit is electrically connected to the ultrasonic interference circuit, the alarm circuit, the alarm indicator light circuit, the power supply circuit, the reset circuit and the key verification circuit respectively, and the power supply circuit is electrically connected to the ultrasonic interference circuit.

[0006] Preferably, the anti-theft main control circuit includes a single-chip microcomputer chip U2, a crystal oscillator Y1, a capacitor C4, a capacitor C5 and a resistor RP1, and the crystal oscillator Y1, the capacitor C4, the capacitor C5 and the resistor RP1 are all connected to the single-chip microcomputer chip U2.

[0007] Preferably, the ultrasonic interference circuit includes a signal generator U4, an operational amplifier U1A, an operational amplifier U1B, an operational amplifier U1C, an operational amplifier U1D, an operational amplifier U1E, an operational amplifier U1F, a diode D3, a diode D4 and an ultrasonic player LS1. The signal generator U4 is respectively connected to the single-chip computer chip U2, the operational amplifier U1A, the diode D3 and the diode D4. The operational amplifier U1B is respectively connected to the operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F. The operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F are all connected to the ultrasonic player LS1.

[0008] Preferably, the alarm circuit comprises a resistor R6, a transistor Q1 and a buzzer U3, one end of the resistor R6 is connected to the single-chip microcomputer chip U2, and the transistor Q1 is respectively connected to the other end of the resistor R6 and the buzzer U3.

[0009] Preferably, the alarm indicator light circuit includes resistor R7, resistor R8, resistor R9, light-emitting diode D1, light-emitting diode D2 and light-emitting diode D5, one end of the resistor R7, one end of the resistor R8 and one end of the resistor R9 are all connected to the single-chip computer chip U2, and the other end of the resistor R7, the other end of the resistor R8 and the other end of the resistor R9 are respectively connected to the light-emitting diode D1, the light-emitting diode D2 and the light-emitting diode D5.

[0010] Preferably, the power circuit comprises a power interface J1 and a power switch SW1, and the power switch SW1 is connected to the power interface J1 and the single-chip microcomputer chip U2 respectively.

[0011] Preferably, the reset circuit comprises a reset button RST, a capacitor C3 and a resistor R5, and the reset button RST, the capacitor C3 and the resistor R5 are all connected to the single-chip microcomputer chip U2.

[0012] Preferably, the key verification circuit includes a password button K1, a password button K2, a password button K3, a password button K4, a password button K5, a password button K6, a password button K7, a password button K8, a password button K9, a password button K10, a password button K11, a password button K12, a password button K13, a password button K14, a password button K15 and a password button K16, and the password button K1, the password button K2, the password button K3, the password button K4, the password button K5, the password button K6, the password button K7, the password button K8, the password button K9, the password button K10, the password button K11, the password button K12, the password button K13, the password button K14, the password button K15 and the password button K16 are all connected to the single-chip computer chip U2.

[0013] By adopting the above technical scheme, the utility model provides an anti-theft conference system with an ultrasonic interference circuit, which has the following beneficial effects: the main control circuit in the anti-theft conference system is electrically connected to the ultrasonic interference circuit, the alarm circuit, the alarm indicator light circuit, the power supply circuit, the reset circuit and the key verification circuit respectively, and the power supply circuit is electrically connected to the ultrasonic interference circuit. By adding an ultrasonic interference circuit, the ultrasonic interference circuit is started to emit ultrasonic waves during the meeting, thereby using ultrasonic waves to interfere with eavesdropping or recording equipment. By utilizing the characteristics that human ears cannot perceive ultrasonic waves but microphones of eavesdropping or recording equipment can perceive them, ultrasonic waves are used to achieve the purpose of interfering with eavesdropping or recording equipment, effectively preventing conference information from being recorded and stolen, and having good security. At the same time, the conference system is also provided with a key verification circuit, which verifies access rights by entering a password. Only after the password verification is correct can the conference connection state be entered to participate in the meeting and read the uploaded conference documents and materials, which can further prevent the leakage of conference information and content as well as conference documents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a circuit schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0018] like Figure 1 As shown in the circuit schematic diagram of the utility model, the anti-theft conference system with ultrasonic interference circuit includes an anti-theft main control circuit, an ultrasonic interference circuit, an alarm circuit, an alarm indicator circuit, a power supply circuit, a reset circuit and a key verification circuit. The main control circuit is electrically connected to the ultrasonic interference circuit, the alarm circuit, the alarm indicator circuit, the power supply circuit, the reset circuit and the key verification circuit respectively, and the power supply circuit is electrically connected to the ultrasonic interference circuit. It can be understood that in actual application, the anti-theft main control circuit, the ultrasonic interference circuit, the alarm circuit, the alarm indicator circuit, the power supply circuit, the reset circuit and the key verification circuit can be integrated on a PCB circuit board and installed on a conference microphone for use.

[0019] Specifically, the anti-theft main control circuit includes a single-chip microcomputer chip U2, a crystal oscillator Y1, a capacitor C4, a capacitor C5 and a resistor RP1, and the crystal oscillator Y1, the capacitor C4, the capacitor C5 and the resistor RP1 are all connected to the single-chip microcomputer chip U2. It can be understood that the single-chip microcomputer chip U2 can be a STC89C52 chip, etc., which serves as the control center of the entire conference system and controls the working status of each of the above circuits through the transmission and reception of signals.

[0020] Specifically, the ultrasonic interference circuit includes a signal generator U4, an operational amplifier U1A, an operational amplifier U1B, an operational amplifier U1C, an operational amplifier U1D, an operational amplifier U1E, an operational amplifier U1F, a diode D3, a diode D4 and an ultrasonic player LS1. The signal generator U4 is respectively connected to the single-chip microcomputer chip U2, the operational amplifier U1A, the diode D3 and the diode D4. The operational amplifier U1B is respectively connected to the operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F. The operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F are all connected to the ultrasonic player LS1. It can be understood that the signal generator U4 can be a NE555 chip signal generator, etc., and the ultrasonic player LS1 can be a general ultrasonic player, etc., for emitting ultrasonic waves to the outside world.

[0021] Specifically, the alarm circuit includes a resistor R6, a transistor Q1 and a buzzer U3, one end of the resistor R6 is connected to the single-chip chip U2, and the transistor Q1 is respectively connected to the other end of the resistor R6 and the buzzer U3; the alarm indicator light circuit includes a resistor R7, a resistor R8, a resistor R9, a light-emitting diode D1, a light-emitting diode D2 and a light-emitting diode D5, one end of the resistor R7, one end of the resistor R8 and one end of the resistor R9 are all connected to the single-chip chip U2, and the other end of the resistor R7, the other end of the resistor R8 and the other end of the resistor R9 are respectively connected to the light-emitting diode D1, the light-emitting diode D2 and the light-emitting diode D5. It can be understood that the buzzer U3 is used for sound alarm, and the light-emitting diode D1, the light-emitting diode D2 and the light-emitting diode D5 are all used to light up when receiving an alarm signal.

[0022] Specifically, the power supply circuit includes a power supply interface J1 and a power switch SW1, and the power switch SW1 is connected to the power supply interface J1 and the single-chip microcomputer chip U2 respectively; the reset circuit includes a reset button RST, a capacitor C3 and a resistor R5, and the reset button RST, the capacitor C3 and the resistor R5 are all connected to the single-chip microcomputer chip U2. It can be understood that the power supply interface J1 is used to access an external power supply to power the above-mentioned circuits.

[0023] Specifically, the key verification circuit includes a password button K1, a password button K2, a password button K3, a password button K4, a password button K5, a password button K6, a password button K7, a password button K8, a password button K9, a password button K10, a password button K11, a password button K12, a password button K13, a password button K14, a password button K15 and a password button K16. The password button K1, the password button K2, the password button K3, the password button K4, the password button K5, the password button K6, the password button K7, the password button K8, the password button K9, the password button K10, the password button K11, the password button K12, the password button K13, the password button K14, the password button K15 and the password button K16 are all connected to the single-chip computer chip U2. It can be understood that the key verification circuit provides a key input for the user to enter the corresponding password, and then verifies whether the password is correct through signal processing by the microcontroller chip U2, thereby opening the corresponding access rights for the user. Other general password verification modules can also be used.

[0024] It can be understood that the utility model has a reasonable design and a unique structure. By adding an ultrasonic interference circuit, the ultrasonic interference circuit is started to emit ultrasonic waves during the meeting, thereby using ultrasonic waves to interfere with eavesdropping or recording equipment. The human ear cannot perceive ultrasonic waves, but the microphone of the eavesdropping or recording equipment can perceive them. Ultrasound is used to achieve the purpose of interfering with the eavesdropping or recording equipment, effectively preventing the conference information from being recorded and stolen, and having good security. At the same time, the conference system is also provided with a key verification circuit, which verifies the access right by entering a password. Only after the password verification is correct can the conference connection state be entered to participate in the meeting and read the uploaded conference documents and materials, which can further prevent the leakage of conference information, content and conference documents.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An anti-theft conference system with an ultrasonic interference circuit, characterized in that: It includes an anti-theft main control circuit, an ultrasonic interference circuit, an alarm circuit, an alarm indicator light circuit, a power supply circuit, a reset circuit and a key verification circuit. The main control circuit is electrically connected to the ultrasonic interference circuit, the alarm circuit, the alarm indicator light circuit, the power supply circuit, the reset circuit and the key verification circuit respectively, and the power supply circuit is electrically connected to the ultrasonic interference circuit.

2. The anti-theft conference system with ultrasonic interference circuit according to claim 1 is characterized in that: The anti-theft main control circuit includes a single-chip microcomputer chip U2, a crystal oscillator Y1, a capacitor C4, a capacitor C5 and a resistor RP1. The crystal oscillator Y1, the capacitor C4, the capacitor C5 and the resistor RP1 are all connected to the single-chip microcomputer chip U2.

3. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The ultrasonic interference circuit includes a signal generator U4, an operational amplifier U1A, an operational amplifier U1B, an operational amplifier U1C, an operational amplifier U1D, an operational amplifier U1E, an operational amplifier U1F, a diode D3, a diode D4 and an ultrasonic player LS1. The signal generator U4 is respectively connected to the single-chip computer chip U2, the operational amplifier U1A, the diode D3 and the diode D4. The operational amplifier U1B is respectively connected to the operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F. The operational amplifier U1C, the operational amplifier U1D, the operational amplifier U1E and the operational amplifier U1F are all connected to the ultrasonic player LS1.

4. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The alarm circuit includes a resistor R6, a transistor Q1 and a buzzer U3. One end of the resistor R6 is connected to the single-chip microcomputer chip U2, and the transistor Q1 is connected to the other end of the resistor R6 and the buzzer U3 respectively.

5. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The alarm indicator light circuit includes a resistor R7, a resistor R8, a resistor R9, a light-emitting diode D1, a light-emitting diode D2 and a light-emitting diode D5. One end of the resistor R7, one end of the resistor R8 and one end of the resistor R9 are all connected to the single-chip computer chip U2, and the other end of the resistor R7, the other end of the resistor R8 and the other end of the resistor R9 are respectively connected to the light-emitting diode D1, the light-emitting diode D2 and the light-emitting diode D5.

6. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The power circuit includes a power interface J1 and a power switch SW1 , and the power switch SW1 is connected to the power interface J1 and the single-chip microcomputer chip U2 respectively.

7. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The reset circuit includes a reset button RST, a capacitor C3 and a resistor R5, and the reset button RST, the capacitor C3 and the resistor R5 are all connected to the single-chip microcomputer chip U2.

8. The anti-theft conference system with ultrasonic interference circuit according to claim 2 is characterized in that: The key verification circuit includes a password button K1, a password button K2, a password button K3, a password button K4, a password button K5, a password button K6, a password button K7, a password button K8, a password button K9, a password button K10, a password button K11, a password button K12, a password button K13, a password button K14, a password button K15 and a password button K16. The password button K1, the password button K2, the password button K3, the password button K4, the password button K5, the password button K6, the password button K7, the password button K8, the password button K9, the password button K10, the password button K11, the password button K12, the password button K13, the password button K14, the password button K15 and the password button K16 are all connected to the single-chip computer chip U2.

Images