Anti-interference safe communication responder

Abstract

The utility model discloses an anti-interference safe communication responder system which mainly comprises a central control device and a wireless connection preemptive answering button. The central control device integrates a Type-C power input, an Ethernet interface, a display module, a national cryptographic algorithm encryption module, a UWB communication module and a GD32F103C8T6 main control chip, and is responsible for communicating with a background server and displaying information. A status indicator lamp, a dial switch encoder, a national cryptographic algorithm encryption module, a UWB communication module, a GD32F103TBU6 main control chip and a power module are arranged in the preemptive answering button, and rapid preemptive answering is achieved through the semispherical button. The state indicating lamp adopts RGB or multi-color LEDs, and the color is adjusted through the control chip so as to visually display the state. According to the system, efficient and stable wireless communication is achieved through the UWB technology, and the security of data transmission is ensured through a cryptographic algorithm. The overall design gives consideration to operation convenience, anti-interference capability and data security, and is suitable for various knowledge competitions and other occasions requiring efficient preemptive answering and security assurance.

Description

Technical Field

[0001] The utility model relates to the field of buzzer products, in particular to a buzzer with anti-interference and secure communication capabilities. Background Art

[0002] As a common competition auxiliary equipment, the buzzer plays an important role in various knowledge competitions and intellectual games. It not only improves the fairness of the competition, but also increases the fun and tension of the competition. With the development of technology, the functions of modern buzzers are becoming more and more diversified, but they also face some technical and design challenges. The main function of the buzzer is to record the order of the contestants' answers and display them. Generally speaking, a standard buzzer system includes the following basic functions: the buzzer needs to be able to quickly identify the user's answering action and immediately lock the signal; once the answering signal is locked, the buzzer will display the number of the contestant who answered first. It is usually accompanied by sound or light prompts so that the audience and contestants can clearly know who answered first;

[0003] However, if the buzzer uses standard protocols such as Bluetooth or Wi-Fi for communication, these protocols themselves have known security vulnerabilities that could be exploited by attackers to tamper with data or inject false signals, resulting in poor security issues for current buzzers. In particular, low-cost, non-dedicated buzzers typically lack encryption capabilities. Furthermore, current buzzers on the market have poor anti-interference capabilities and may face physical interference from the surrounding environment during use. This is primarily due to electromagnetic compatibility issues within the electronic devices themselves. For example, in strong electromagnetic fields, the buzzer's signal reception may be disrupted, resulting in false positives or missed positives. Furthermore, wireless buzzers are susceptible to interference from other wireless signals, especially when multiple wireless devices operate in the same frequency band, which can interfere with each other and cause system instability. Overall, although buzzers are relatively mature in design, they still face issues with data transmission security and anti-interference in practical applications. The purpose of the present invention is to further improve the security and stability of buzzers, making competitions more fair and just. Summary of the Invention

[0004] In order to address the deficiencies and defects of the above-mentioned existing technologies, the inventors have conducted research and development and have now provided an anti-interference secure communication buzzer with good anti-interference performance and encrypted communication function. It has achieved optimization in improving competition security, anti-interference ability and physical size to meet more secure and reliable product application requirements.

[0005] The specific embodiment of the present invention is implemented as follows: a buzzer with anti-interference and secure communication, comprising: a central control device and at least one buzzer button wirelessly connected thereto, wherein: the central control device comprises: a power input port for powering the central control device; a communication interface for connecting to a background server; a display module for displaying number information; a first encryption module for encrypting communication data; a first UWB communication module for communicating with the buzzer button; a first control module connected to the first UWB communication module and the display module for controlling the display content of the display module and data transmission and communication control; the buzzer button comprises: a status indicator light for displaying the current status of the buzzer button; an encoder for encoding and identifying the buzzer button, the button being pressed by the contestant to send a buzzer signal to the central control device through the second UWB communication module; a second encryption module for encrypting communication data; a power module connected to the status indicator light, the encoder, the second UWB communication module, the second encryption module and the button and providing power; a second control module connected to the second UWB communication module, the button and the status indicator light, for controlling the working status of the status indicator light, the transmission and communication control of the buzzer instruction and feedback data.

[0006] Furthermore, the central control device includes a device shell, a first integrated circuit board is installed inside the device shell, a power input port and a communication interface are installed near the edge of the first integrated circuit board, a display module is installed in the middle, and openings corresponding to the power input port and the communication interface on the first integrated circuit board are opened on the device shell, and a window is opened in the area corresponding to the display module on the front of the shell body, and the display module can be embedded in the window, or a transparent panel is provided at the window, and the display module is under the transparent panel; wherein, after the first integrated circuit board is installed and fixed, there is a contactless gap between the board surface and the front and back surfaces of the device shell.

[0007] Furthermore, the power input port is a Type-C interface, and the communication interface is an Ethernet interface; the power module of the quick-answer button is a detachable battery compartment or a rechargeable built-in battery.

[0008] Furthermore, the first encryption module and the second encryption module are both national secret algorithm chips; the encoder is a dip switch for setting a four-bit binary address, and the jumper switch is used to expand the address space.

[0009] Furthermore, the quick-answer button includes a button shell and a button installed on the upper part of the button shell. The button is a hemispherical structure that protrudes above the button shell and is pressable and movable. It remains in an upright state under normal circumstances and can retract downward after being pressed to activate the button to issue a quick-answer command.

[0010] Furthermore, the quick answer button also includes a second integrated circuit board installed in the button housing, the status indicator light is a plurality of LED lights integrated and installed on the surface of the second integrated circuit board, and the power module is installed below the second integrated circuit board and placed in the button housing; wherein: the LED light is an RGB three-color light or includes white light beads, yellow light beads, green light beads, and red light beads; the second control module can control the lighting color of the status indicator light.

[0011] Furthermore, the first control module is a GD32F103C8T6 main control chip; the second control module is a GD32F103TBU6 main control chip; and the first integrated circuit board is also installed with a power supply step-down chip MPQ456 and a network serial port transparent transmission chip CH9120; the display module includes a digital tube display or an LED display.

[0012] The working principle of this utility model is described as follows: This buzzer system combines more stable communication technology with secure encryption technology to achieve an efficient, reliable, and secure buzzer solution. The central control device, as the core component, is powered by a Type-C port and connected to the backend server via a network cable. The central control device is responsible for receiving commands from the server and forwarding these commands to the buzzer buttons. It also receives status information from the buzzer buttons and feeds it back to the server. Each buzzer button has a unique four-bit binary address set by a DIP switch. A jumper switch on the button allows for expanded address space, supporting up to 64 devices. When in the preparatory state, the button first illuminates white, then turns yellow, indicating it is ready for answering. At this point, the button sends its number to the central control device, which then sends the buzzer command to the buzzer button. After receiving the command, the button illuminates yellow, and the contestant presses it to answer. The first contestant to press the button's button lights up solid green, and the contestant's status information is fed back to the central control device, which displays their number and updates the server interface simultaneously. The buttons of other contestants who failed to answer successfully turn red. After the referee completes the scoring, a command can be sent through the server to reset the system to its initial state. The buzzer of the present invention uses carrier-free communication technology (UWB): it uses non-sinusoidal narrow pulses at the nanosecond to microsecond level to transmit data, and the operating frequency band is 6.1GHz to 6.9GHz. This technology does not require an additional carrier, so it has better spectrum utilization and anti-interference capabilities, and is particularly suitable for use in environments with signal interference or shielding. On the other hand, the data transmitted between the central control device and the buzzer button is encrypted by the national secret chip to ensure the security of information transmission. This can prevent the data from being eavesdropped or tampered with. It can be seen that the buzzer system integrates UWB carrier-free communication technology, national secret algorithm encryption and intelligent control logic to achieve an efficient, stable and secure buzzer experience. It is suitable for a variety of application scenarios, especially in knowledge competitions with high security requirements.

[0013] Beneficial technical effects of the utility model:

[0014] (1) Efficient communication technology: This utility model uses ultra-wideband (UWB) technology, which can efficiently transmit data in the 6.1GHz to 6.9GHz frequency band. Due to the use of non-sinusoidal narrow pulse transmission, it has higher spectrum utilization and stronger anti-interference ability. This communication method can ensure stable communication quality in complex signal environments such as knowledge competitions and reduce the impact of external interference.

[0015] (2) Secure Data Transmission: This utility model uses a national secret algorithm chip to encrypt and decrypt data information, ensuring the security of data transmission from the backend server to the central control device and then to the answer button. The application of encryption technology can effectively prevent unauthorized data access, ensure the fairness of the competition and protect the privacy of participants.

[0016] (3) Flexible device management: The answer button supports four-bit binary address coding, which can be set via a DIP switch, allowing for quick configuration of the device address. The device is scalable and can be connected to a maximum of 64 answer buttons by adjusting the jumper switch, meeting the needs of large-scale competitions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the central control device of a buzzer with anti-interference and secure communication according to the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the central control device of a buzzer with anti-interference secure communication according to the present invention;

[0019] Figure 3 This is a schematic diagram of the layout of the first integrated circuit board of the central control device of the anti-interference secure communication buzzer of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the answer button of a buzzer for anti-interference secure communication according to the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the answer button of a buzzer for anti-interference secure communication according to the present invention;

[0022] Figure 6 This is a schematic diagram of the battery compartment structure at the bottom of the answer button of a buzzer for anti-interference secure communication according to the present invention;

[0023] Figure 7 This is a schematic diagram of the layout of the second integrated circuit board of the answer button of the anti-interference secure communication answerer of the utility model;

[0024] Figure 8 This is a schematic diagram of the changing process of the pressing state of the answer button of a buzzer for anti-interference secure communication according to the present invention;

[0025] in:

[0026] 1 - Central control device, 11 - Power input port, 12 - Communication interface, 13 - Display module, 14 - First encryption module, 15 - First UWB communication module, 16 - First control module, 17 - Device housing, 18 - First integrated circuit board;

[0027] 2—answer button, 21—status indicator light, 22—encoder, 23—second UWB communication module, 24—second encryption module, 25—power module, 26—button housing, 27—button, 28—second integrated circuit board. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0029] Example 1: The structure of the central control device 1:

[0030] Power input port 11: Uses a Type-C port to provide power to the central control device 1. The port not only supports data transmission but also supports high charging power, facilitating fast charging of the device.

[0031] Communication interface 12: Uses Ethernet interface to connect to the background server to ensure the stability and reliability of wired network connection.

[0032] Display module 13: can be a digital tube display or LED display screen, used to display the number information of the answer button 2 in real time, so that the audience and referees can identify the contestants who have successfully answered.

[0033] The first encryption module 14: uses the national secret algorithm chip to encrypt the communication data to ensure the security of data transmission and prevent the data from being intercepted or tampered.

[0034] The first UWB communication module 15 uses ultra-wideband (UWB) technology to wirelessly communicate with the answer button 2. UWB has the characteristics of high bandwidth, low power consumption, and strong anti-interference, and is very suitable for short-distance, high-speed data transmission scenarios.

[0035] First control module 16: Based on a microcontroller such as the GD32F103C8T6, it coordinates the functions of various components of the central control device 1, controls the information displayed on the display module 13, and manages data transmission for the UWB communication module. It may also include other auxiliary chips, such as the MPQ456 power step-down chip and the CH9120 network serial port transparent transmission chip, to support normal device operation.

[0036] 2. The composition of the quick answer button 2

[0037] Status indicator light 21: consists of multiple LED lights, usually RGB three-color lights or LED lights of specific colors, using different colors to indicate different states of the answer button 2, such as white for standby, yellow for waiting, green for successful answer, and red for failed answer.

[0038] Encoder 22: A dip switch is used to perform a four-bit binary encoding on the answer button 2, which is used to uniquely identify each button 27. A jumper switch is used to expand the address space, theoretically supporting up to 64 buttons 27.

[0039] Button 27: The contestant triggers the quick response by pressing button 27. Button 27 is designed in a hemispherical shape to facilitate the contestant's quick response.

[0040] The second encryption module 24 also uses the national secret algorithm chip to ensure the security of data transmission from the answer button 2 to the central control device 1.

[0041] The power module 25 can be a detachable battery compartment or a built-in rechargeable battery to power all electronic components of the quick answer button 2.

[0042] The second UWB communication module 23 is paired with the first UWB communication module 15 of the central control device 1 to achieve efficient wireless communication between the quick answer button 2 and the central control device 1 .

[0043] The second control module is also based on a microcontroller such as GD32F103TBU6. It is responsible for monitoring the pressing status of the button 27, controlling the color change of the status indicator light 21, and exchanging data with the central control device 1 through the UWB communication module.

[0044] Brief description of the workflow

[0045] 1. System initialization: The central control device 1 is connected to the background server, and the quick answer button 2 establishes a connection with the central control device 1 via UWB.

[0046] 2. Standby state: The answer button 2 is in standby state, and the status indicator light 21 is yellow.

[0047] 3. Start of the quick response: The contestant presses the quick response button 2, and the signal is encrypted by the UWB module and sent to the central control device 1.

[0048] 4. Response processing: The central control device 1 receives the response signal, decrypts the data through the encryption module, determines the number of the first button 27 that successfully responds, and displays it on the display module 13.

[0049] 5. Feedback: The central control device 1 sends a feedback signal to the quick answer button 2, changing the color of the status indicator light 21, green for success and red for failure.

[0050] 6. End and Reset: After the judges have scored, a reset command is sent through the backend server, and the system returns to its initial state, preparing for the next round of quick answers.

[0051] Hardware components:

[0052] The device housing 17 primarily protects the internal electronic components from external environmental influences, such as dust and moisture, and provides structural support and stability for the entire device. The housing has necessary openings for connecting power and communication cables. A window on the front is provided for mounting the display module 13 to ensure information visualization.

[0053] The first integrated circuit board 18 is installed inside the device housing 17. The power input port 11 is located at the edge of the first integrated circuit board 18, which is convenient for connecting the power cord from the outside of the housing. A Type-C interface is used, which not only supports data transmission, but also supports high-power charging. The communication interface 12 is also located at the edge of the circuit board and is an Ethernet interface used to connect to the background server, ensuring the speed and stability of data transmission. The display module 13 is installed in the middle of the circuit board, directly corresponding to the window on the front of the housing, so that the user can view the display information. The display module 13 may be an LED display or a digital tube display, which is used to display information such as the number of the answer button 2.

[0054] After the first integrated circuit board 18 is installed, there is a certain gap between its board surface and the front and back surfaces of the device housing 17, which helps to dissipate heat and prevent heat accumulation from causing overheating of the device. In addition, such a design also helps to reduce electromagnetic interference and improve the reliability of the device. The display module 13 is installed at the window opening on the front of the housing. It can be directly embedded in the window opening, or a layer of transparent panel is provided at the window opening, and the display module 13 is located below the transparent panel. The number and other relevant information of the quick answer button 2 are displayed to ensure that the referee and the audience can clearly see which button 27 is pressed. The gap left between the circuit board and the housing allows air circulation to help take away the heat generated by the circuit board and prevent overheating. Appropriate gaps can reduce electromagnetic interference between the housing and the circuit board and improve the purity of the signal.

[0055] The National Cryptography Algorithm chip complies with the standards published by the State Cryptography Administration of China and is used for data encryption. National Cryptography Algorithms include the SM2 asymmetric encryption algorithm, the SM3 cryptographic hash function, and the SM4 symmetric encryption algorithm. The primary advantage of using the National Cryptography Algorithm is its high level of security against common cryptographic attacks. Dip switches are used to set fixed hardware parameters. In this embodiment, each answer button 2 is equipped with a four-bit binary DIP switch that can be set to 16 different addresses, ranging from 0000 to 1111. By setting the DIP switch, each answer button 2 is assigned a unique binary address, allowing the central control device 1 to distinguish between different answer buttons 2. The DIP switch is simple and intuitive, requiring no programming knowledge to operate. Once set, the address remains unchanged unless manually modified, ensuring system stability. Jumper switches are used to expand the address space. By adding jumper switches, the number of available addresses can be further increased beyond the four-bit binary address. Theoretically, with appropriate configuration, up to 64 answer buttons 2 can be supported. Jumper switches are typically used to select different line configurations, thereby expanding the address range. For example, by changing the position of a jumper switch, the address space can be expanded from 0000-1111 to a wider range, such as 00000-111111, supporting up to 64 addresses. Each quick-answer button 2 has a unique address, allowing the central control device 1 to accurately identify the contestant who made the quick answer. The use of dip switches simplifies the address setting process, while jumper switches provide greater flexibility to accommodate competitions of varying sizes.

[0056] Answer button 2 design

[0057] The button housing 26 is the outer shell of the quick-answer button 2, housing and protecting the various electronic components within, such as the control module, UWB communication module, encryption module, power module 25, and status indicator 21. The housing is typically made of durable material to ensure resistance to damage during use. Button 27 is hemispherical, providing a comfortable pressing feel and enhancing its visual recognition. It is mounted on the upper portion of the button housing 26 and protrudes from the upper portion, making it easy for contestants to quickly locate and press it. Button 27 is a push-button, removable device that remains in an upward position. When a contestant applies pressure, button 27 retracts downward. This retraction triggers an internal mechanical or electrical switch, signaling the quick-answer command. A spring or similar elastic device is typically located beneath button 27 to ensure it remains in an upward position when no external force is applied. When button 27 is pressed, the spring compresses; upon release, the spring's rebound force returns the button to its original position. There are contacts inside the button 27. When the button 27 is pressed, the contacts close to form a circuit, thereby triggering a quick answer signal. The contacts can be mechanical or electronic, such as a membrane switch. The contacts inside the button 27 are connected to the control module. When the contacts close, the control module detects this change and sends a quick answer signal to the central control device 1 through the second UWB communication module 23. The control module also controls the changes in the status indicator light 21. For example, when the button 27 is pressed, the indicator light may change from yellow to green to intuitively inform the contestant that the quick answer is successful. The hemispherical design of the button 27 and the protruding installation position allow contestants to quickly locate and press the button 27, which is crucial for quick answer competitions.

[0058] The second integrated circuit board 28, located within the button housing 26, serves as the core control unit for the quick-answer button 2. It integrates a status indicator 21, a power module 25, and other necessary electronic components. The status indicator 21 consists of several LEDs mounted on the top surface of the second integrated circuit board 28. These LEDs can be RGB (three-color RGB) or a combination of white, yellow, green, and red LEDs. RGB lights can produce a variety of colors by mixing colors, while single-color LEDs represent different states. The second control module, the GD32F103TBU6 main control chip, controls the color of these LEDs. For example, white light might indicate standby mode, yellow for a pending answer, green for a successful answer, and red for a failed answer. This color change allows contestants and judges to intuitively understand the status of the quick-answer button 2. The power module 25 is mounted below the second integrated circuit board 28, within the button housing 26. It can be a removable battery compartment or a built-in rechargeable battery, providing power to the entire quick-answer button 2. The first control module 16 uses the GD32F103C8T6 main control chip. This chip is responsible for coordinating the operation of the entire central control device 1, including communication with the quick answer button 2, controlling the display content of the display module 13, and processing instructions from the background server. MPQ456 is a power step-down chip used to reduce the input power voltage to a voltage level suitable for other electronic components to ensure stable operation of the equipment. CH9120 is a network serial port transparent transmission chip used to convert serial port data into Ethernet data, and vice versa. This allows the central control device 1 to exchange data with the background server through the Ethernet interface. The display module 13 can be a digital tube display or an LED display screen, used to display the number information and other related information of the quick answer button 2. The display module 13 is located in the middle of the first integrated circuit board 18 and is displayed to the user through the window on the front of the shell.

[0059] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A buzzer for anti-interference secure communication, characterized by include: A central control device (1) and at least one quick-answer button (2) wirelessly connected thereto, wherein: The central control device (1) comprises: a power input port (11) for supplying power to the central control device (1); a communication interface (12) for connecting to a background server; a display module (13) for displaying number information; a first encryption module (14) for encrypting communication data; a first UWB communication module (15) for communicating with the answer button (2); a first control module (16) connected to the first UWB communication module (15) and the display module (13) for controlling the display content of the display module (13) and data transmission and communication control; The quick answer button (2) comprises: a status indicator light (21) for displaying the current state of the quick answer button (2); an encoder (22) for encoding the quick answer button (2); a button (27) for a contestant to send a quick answer signal to a central control device (1) through a second UWB communication module (23) after being pressed; a second encryption module (24) for encrypting communication data; a power supply module (25) connected to the status indicator light (21), the encoder (22), the second UWB communication module (23), the second encryption module (24) and the button (27) and supplying power; and a second control module connected to the second UWB communication module (23), the button (27) and the status indicator light (21) and used to control the working state of the status indicator light (21), the quick answer instruction and the transmission and communication control of feedback data.

2. The buzzer according to claim 1, characterized in that: The central control device (1) includes a device housing (17), a first integrated circuit board (18) installed inside the device housing (17), a power input port (11) and a communication interface (12) installed near the edge of the first integrated circuit board (18), a display module (13) installed in the middle, and an opening corresponding to the power input port (11) and the communication interface (12) on the first integrated circuit board (18) is opened on the device housing (17), and a window is opened in the area corresponding to the display module (13) on the front of the shell device body, and the display module (13) can be embedded in the window, or a transparent panel is provided at the window, and the display module (13) is located below the transparent panel; wherein, after the first integrated circuit board (18) is installed and fixed, there is a contactless gap between the board surface and the front and back surfaces of the device housing (17).

3. The buzzer according to claim 1, characterized in that: The power input port (11) is a Type-C interface, and the communication interface (12) is an Ethernet interface; the power module (25) of the answer button (2) is a detachable battery compartment or a rechargeable built-in battery.

4. The buzzer according to claim 1, characterized in that: The first encryption module (14) and the second encryption module (24) are both national secret algorithm chips; the encoder (22) is a dip switch for setting a four-bit binary address, and a jumper switch is used to expand the address space.

5. The buzzer according to claim 1, characterized in that: The quick answer button (2) comprises a button housing (26) and a button (27) mounted on the upper portion of the button housing (26); the button (27) is a hemispherical structure protruding above the button housing (26) and is a pressable movable installation. It remains in an upright state under normal conditions and can retract downward after being pressed to activate the button (27) and issue a quick answer command.

6. The buzzer according to claim 5, characterized in that: The answer button (2) further comprises a second integrated circuit board (28) mounted in a button housing (26); the status indicator light (21) is a plurality of LED lights integrated and mounted on the upper surface of the second integrated circuit board (28); the power module (25) is mounted below the second integrated circuit board (28) and placed in the button housing (26); wherein: the LED light is an RGB three-color light or includes a white light bead, a yellow light bead, a green light bead, and a red light bead; and the second control module can control the lighting color of the status indicator light (21).

7. The buzzer according to claim 1, characterized in that: The first control module (16) is a GD32F103C8T6 main control chip; the second control module is a GD32F103TBU6 main control chip; and the first integrated circuit board (18) is also equipped with a power supply step-down chip MPQ456 and a network serial port transparent transmission chip CH9120; the display module (13) includes a digital tube display or an LED display screen.

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