A handset implementation method based on a domestic short-range wireless connection technology

Abstract

A kind of handset implementation method based on domestic short-range wireless connection technology, handset is powered on and joins by star flash communication module the star flash center gateway management star flash network integrated by CIR operation display terminal;Data transmission: handset star flash communication module carries out data interaction with CIR operation display terminal through the star flash center gateway in CIR operation display terminal;Data processing: handset star flash communication module will receive the data after decryption by security module and DA processing by audio processing module are played by the loudspeaker of audio interface;The data to be sent by audio interface microphone is processed by AD by audio processing module, and is sent by star flash communication module after being encrypted by security module;Communication ends: when sending or receiving data communication is completed, star flash communication module releases resources, and enters hibernation state.It solves the technical problems that the communication distance of traditional handset is limited, the anti-interference is poor, and the material is easy to age and damage.

Description

Technical Field

[0001] This invention relates to the field of locomotive wireless communication technology, and in particular to a method for implementing a new generation of domestically produced transceivers based on domestically developed short-range wireless connection technology. Background Technology

[0002] With the rapid development of information technology, communication equipment is increasingly widely used in various fields. As an important voice communication tool, microphones play a crucial role in call centers, dispatching and command, education and training, and other scenarios. Traditional microphones have significant limitations in audio transmission, multi-device collaboration, and anti-interference capabilities, making it difficult to meet the demands of modern applications for low latency, high reliability, high concurrency, and low power consumption.

[0003] Significant progress has been made in domestically developed short-range wireless connectivity technologies over the past few years. Among these technologies, StarSpeed ​​technology stands out as an ideal choice for achieving efficient and stable communication between transmitters and receivers due to its advantages such as low latency, high speed, anti-interference capabilities, and multi-connectivity. Since its release in 2023, StarSpeed ​​technology has achieved remarkable results, with the number of technical standards increasing from the initial 22 to 32, the number of members in the International StarSpeed ​​Consortium growing from over 300 to over 1,000, and the number of StarSpeed ​​products increasing from 6 to over 100.

[0004] In the application of transmitters and receivers in railway locomotive radios, it is necessary to select appropriate wireless connection technologies according to specific scenario requirements in order to balance factors such as power consumption, transmission quality, and connection stability.

[0005] Existing railway locomotive radio transceivers use wired analog audio communication, which has limited communication distance and poor anti-interference capabilities. The transceivers are connected to the main equipment via a spiral cable. In the locomotive operating environment, the rubber of the spiral cable is prone to aging and damage from bending, easily causing communication failures and malfunctions during operation. Furthermore, the maximum extension distance of the spiral cable is currently 2 meters, restricting the driver's operation. The complex electromagnetic environment of the locomotive also interferes with the signal, generating noise and degrading call quality.

[0006] How to achieve data communication between existing railway locomotive radio transmitters and receivers and CIR operation display terminals using star flash technology has always been a research topic for technical personnel in the industry. Summary of the Invention

[0007] In view of the technical problems of limited communication distance, poor anti-interference ability and easy aging and damage of materials in existing technologies, this invention aims to explore a microphone implementation scheme based on domestic short-range wireless connection technology. By comparing and analyzing different wireless connection technologies, adopting star flash technology, and designing optimized hardware and software systems, this invention provides a microphone implementation method based on domestic short-range wireless connection technology to solve the problems existing in traditional microphones.

[0008] This invention integrates the power management module, StarFlash communication module, audio processing module, security module, audio interface, and RF antenna into the existing transceiver structure, and integrates the StarFlash central gateway into the transceiver base of the CIR operation display terminal. This allows for direct replacement of the equipment hardware without changing the on-site installation conditions, enabling StarFlash technology to be used for communication in locomotive environments. By eliminating the wired transceiver, the failure rate of on-site communication equipment is effectively reduced, ensuring the communication quality between the locomotive and ground equipment, reducing the difficulty of later maintenance, and ensuring driving safety.

[0009] The technical solution adopted in this invention is: a method for implementing a transmitter and receiver based on domestically produced short-range wireless connection technology, implemented using a StarScan communication module, wherein the StarScan communication module includes StarScan communication software, and the specific implementation method is as follows:

[0010] Communication establishment: After the receiver is powered on, it joins the StarSpark network managed by the StarSpark central gateway integrated into the CIR operation display terminal through the StarSpark communication module;

[0011] Data transmission: The StarFlash communication module of the transmitter and receiver interacts with the CIR operation display terminal through the StarFlash central gateway in the CIR operation display terminal;

[0012] Data processing: The StarScan communication module of the transmitter and receiver decrypts the received data through the security module and performs DA processing through the audio processing module before playing it through the speaker of the audio interface. The data to be sent by the microphone of the audio interface is processed by the audio processing module, encrypted by the security module, and then sent by the StarScan communication module.

[0013] Communication End: After the data transmission or reception is completed, the sender / receiver star flash communication module releases resources and enters sleep mode.

[0014] The method for the transmitter / receiver to join the StarSpark network managed by the StarSpark central gateway integrated in the CIR operation display terminal after powering on via the StarSpark communication module is as follows: The StarSpark communication module first initializes as a slave device and periodically sends broadcast signals. After the StarSpark central gateway of the CIR operation display terminal scans the broadcast of the transmitter / receiver StarSpark communication module as a master device, it will identify its device type and supported services, and initiate a connection request. The transmitter / receiver StarSpark communication module and the StarSpark central gateway perform a protocol "handshake", including synchronizing timing, exchanging capability parameters, communication frequency, and establishing an encrypted link. After the synchronization process is completed, the transmitter / receiver StarSpark communication module joins the StarSpark network managed by the StarSpark central gateway.

[0015] The method by which the StarSpark communication module of the transmitter / receiver interacts with the CIR operation display terminal through the StarSpark central gateway in the CIR operation display terminal is as follows: When the transmitter / receiver or the CIR operation display terminal needs to send data, the StarSpark communication module will first send a data transmission request to the StarSpark central gateway. After receiving the request, the StarSpark central gateway allocates time slices and frequency resources according to service priority and data volume. The transmitter / receiver and the CIR operation display terminal send and receive data according to the time and frequency allocated by the StarSpark central gateway, thereby realizing data communication.

[0016] The method for transmitting and receiving the data is as follows: the StarSpark communication module of the transceiver decrypts the received data through the security module and performs DA processing through the audio processing module before playing it through the speaker of the audio interface. The method for transmitting the data to be sent by the microphone of the audio interface is as follows: the StarSpark communication module of the transceiver first sends the data received from the CIR operation display terminal to the security module for decryption, and then sends the decrypted data to the audio processing module. The audio processing module converts the data into an analog audio signal, amplifies it, and sends the output signal to the speaker of the audio interface for playback. The microphone of the audio interface outputs an analog mic signal and sends it to the audio processing module. The audio processing chip converts the mic analog signal into data and sends it to the StarSpark communication module. The StarSpark communication module sends the data to the security module for encryption, and then transmits the encrypted data through the radio frequency antenna.

[0017] A transceiver based on domestic short-range wireless connection technology includes a power management module, a star-flash communication module, an audio processing module, a security module, an audio interface, and a radio frequency antenna. The power management module is connected to the star-flash communication module, the audio processing module, and the security module. The star-flash communication module is bidirectionally connected to the audio processing module, the security module, and the radio frequency antenna. The audio processing module is connected to the audio interface.

[0018] The power management module is used for battery power management, voltage conversion, and power supply to other modules.

[0019] The Star Flash Communication Module is used to process audio data and realize Star Flash Communication, and its model is Hi2825.

[0020] The audio processing module is used to process the conversion between digital audio data and analog audio signals and to amplify audio signals. The model number is AK4637.

[0021] The security module is used to implement data encryption security protection, and its model is ATECC608A;

[0022] The audio interface is used for connecting the microphone and speaker;

[0023] The radio frequency antenna is used to transmit and receive radio frequency signals.

[0024] The beneficial effects of this invention patent are: the design of this invention fully utilizes the low latency, high reliability, high concurrency, low power consumption, and anti-interference characteristics of StarFlash technology, effectively solving the problems of easy damage to the spiral cable of the current controller and short communication distance. At the same time, it has better anti-interference characteristics than Bluetooth and WiFi, and the call quality is clear and uninterrupted in actual application.

[0025] 1. Ultra-low latency and high reliability: Through ultra-short frame design and dynamic time slot allocation, end-to-end latency is reduced to as low as 20 microseconds; using Polar codes and Hybrid Automatic Repeat Request (HARQ) technology, the bit error rate is less than 10^-7, and the reliability reaches 99.999%; compared with the current analog data communication between transmitters and receivers, it is more efficient and reliable.

[0026] 2. High concurrency and high capacity connection: Based on a centralized scheduling architecture, a single device supports multiple nodes; it can realize dynamic channel allocation, support multi-device collaborative transmission, avoid conflicts, and enable multiple devices to access railway locomotive wireless communication equipment, creating richer application scenarios.

[0027] 3. High-speed and high-precision positioning: SLB mode supports a transmission rate of 1.2Gbps; through TDOA and AOA fusion positioning, the positioning accuracy can reach 0.1 meters.

[0028] 4. Anti-interference and wide coverage: It adopts dynamic spectrum sharing and intelligent channel equalization technology to maintain a stable connection in the complex electromagnetic environment of railway locomotives; the coverage radius is 100 meters.

[0029] 5. Low power consumption and long battery life: Through discontinuous reception (DRX) and intelligent sleep mechanism, the device's battery life is extended by more than 2 times; it supports battery-powered devices, meeting the requirements of low power consumption and long life, and meeting the needs of long-distance railway locomotive transportation.

[0030] 6. Flexible networking and compatibility: Supports star, mesh, and chain topologies to adapt to networking needs in different scenarios.

[0031] 7. Security and Authentication: Employs national cryptographic algorithms such as SM2 / SM3 / SM4 to ensure data transmission security; adopts a two-way authentication mechanism, with device authentication time less than 10ms, to prevent man-in-the-middle attacks.

[0032] 8. Simple maintenance: The use of wireless communication eliminates the potential faults of the spiral wire connection method, reduces the workload of railway maintenance units, and improves the efficiency of railway production and operation. Attached Figure Description

[0033] Figure 1 The circuit connection block diagram for implementing the receiver / speaker of this invention is shown below;

[0034] Figure 2 This is a flowchart illustrating the implementation method of the receiver / speaker of the present invention. Detailed Implementation

[0035] To better understand this invention, the following detailed description is provided in conjunction with the accompanying drawings.

[0036] like Figure 1 As shown, a transceiver based on domestic short-range wireless connection technology includes a power management module, a star-flash communication module, an audio processing module, a security module, an audio interface, and a radio frequency antenna.

[0037] The StarScan communication module processes audio data and enables StarScan communication. It employs a communication chip compliant with the StarScan technology standard, which supports StarScan Low-Power Access (SLE) and boasts extremely low power consumption. The chip, model Hi2825, utilizes a powerful processor with a clock speed reaching hundreds of megahertz, enabling rapid processing of audio data and the StarScan communication protocol. This processor also features low power consumption to extend the battery life of the transmitter and receiver. Furthermore, it supports multiple interfaces, including GPIO, ADC, I2S (Integrated Audio Bus) for audio data transmission, UART (Universal Asynchronous Receiver / Transmitter) for communication with other modules, and SPI (Serial Peripheral Interface) for connecting storage devices. The StarScan communication module also integrates a high-performance RF front-end, including a power amplifier (PA), a low-noise amplifier (LNA), and filters. The PA enhances the power of the transmitted signal, the LNA improves the sensitivity of the received signal, and the filters suppress out-of-band interference.

[0038] The audio processing module, model AK4637, is used to process audio data, convert audio signals to analog audio signals, and amplify audio signals. It employs an audio codec that supports high sampling rates and high resolution to ensure high-quality transmission and reproduction of audio signals. It also features dynamic range control (DRC), noise suppression (NS), and echo cancellation (AEC) to further enhance audio quality. Furthermore, it integrates a microphone amplifier and a speaker amplifier, supporting low-noise, low-power operation and direct speaker driving, respectively.

[0039] The security module employs its integrated hardware encryption engine and multiple encryption algorithms to achieve data security protection through steps such as secure key storage, execution of encryption operations, and generation of digital signatures. The model number is ATECC608A. The audio interface consists of a microphone and a speaker. The audio interface is used to connect the microphone and speaker, employing a differential input method to connect the microphone to improve anti-interference capabilities.

[0040] Radio frequency antennas are responsible for converting between guided electromagnetic waves and electromagnetic waves in free space, enabling the transmission and reception of radio frequency signals.

[0041] The power management module is used for battery power management and can provide multiple voltage outputs to meet the power supply needs of different modules.

[0042] It includes a 7.4V lithium battery, a 7.4V-3.3V power conversion chip I, and a 3.3V-1.8V power conversion chip II. The 7.4V lithium battery is connected to the 3.3V-1.8V power conversion chip II through the 7.4V-3.3V power conversion chip I; the 7.4V lithium battery powers the 7.4V-3.3V power conversion chip I; the 7.4V-3.3V power conversion chip I, model TPS54335ADDA, provides 3.3V power to the StarFlash communication module, security module, and audio processing module; the 3.3V-1.8V power conversion chip II, model RT9013-18, provides 1.8V power to the audio processing module.

[0043] The radio frequency antenna is a microstrip antenna, consisting of a metal patch, a dielectric substrate, and a radio frequency adapter cable.

[0044] Figure 2 The flowchart shows the implementation method of the transmitter and receiver, including communication establishment, data transmission, data processing, and communication termination.

[0045] Communication Establishment: Upon powering on the receiver, the StarSpark communication module first initializes as a slave device and periodically sends broadcast signals. The StarSpark central gateway of the CIR operation display terminal, acting as the master device, scans the broadcast of the receiver's StarSpark communication module, identifies its device type and supported services, and initiates a connection request. The receiver's StarSpark communication module and the StarSpark central gateway perform a protocol "handshake," including synchronizing timing, exchanging capability parameters, communication frequency, and establishing an encrypted link. After completing the synchronization process, the receiver's StarSpark communication module joins the StarSpark network managed by the StarSpark central gateway.

[0046] Data transmission: When the transmitter / receiver or CIR operation display terminal needs to send data, it will first send a data transmission request to the StarSpark central gateway. After receiving the request, the StarSpark central gateway allocates time slices and frequency resources according to the service priority and data volume. The transmitter / receiver and CIR operation display terminal send and receive data according to the time and frequency allocated by the StarSpark central gateway, thereby realizing data communication.

[0047] Data processing: The StarFlash communication module of the transmitter and receiver first sends the data received from the CIR operation display terminal to the security module for decryption, and then sends the decrypted data to the audio processing module. The audio processing module converts the data into an analog audio signal and amplifies it, and then sends the output signal to the speaker of the audio interface for playback. The microphone of the audio interface outputs an analog mic signal and sends it to the audio processing module. The audio processing chip converts the mic analog signal into data and sends it to the StarFlash communication module. The StarFlash communication module sends the data to the security module for encryption, and then transmits the encrypted data through the radio frequency antenna.

[0048] Communication End: After the data transmission or reception is completed, the sender / receiver star flash communication module releases resources and enters sleep mode.

[0049] This invention aims to improve the performance of transceivers in terms of wireless connection stability, low latency, and anti-interference capabilities, meeting the high-quality requirements of audio transmission. In terms of hardware design, it utilizes a domestically produced main control chip, low-latency high-fidelity audio codec algorithms, and high-sensitivity, low-distortion microphones and speakers. The software design implements stable wireless connection, audio transmission, and audio processing functions. This research also explores the advantages, application scenarios, future development trends, and challenges of this technology, providing new ideas and solutions for the wireless improvement of transceivers. This research not only helps improve the performance indicators of transceivers but also enhances the user experience for frontline railway drivers, while further promoting the application of domestically produced short-range wireless communication technology in the field of railway wireless communication equipment, possessing significant theoretical and practical value.

[0050] Example 1: In practical application, a StarSpeed ​​Central Gateway device needs to be added to the receiver base of the CIR operation display terminal. Then, the receiver of this invention is placed on the base. After the CIR operation display terminal is powered on, the StarSpeed ​​communication module in the receiver automatically establishes a connection with the StarSpeed ​​Central Gateway device. When a call needs to be initiated, the driver picks up the receiver and then calls the station by operating the buttons on the CIR operation display terminal. After hearing the ringback tone, the driver uses the receiver to make a call. The driver's voice is sent to the audio processing module through the microphone of the receiver's audio interface, converted into data, and sent to the StarSpeed ​​communication module. The StarSpeed ​​communication module sends the data to the security module for encryption. The encrypted data is returned to the StarSpeed ​​communication module, which sends a data transmission request to the StarSpeed ​​Central Gateway. The StarSpeed ​​Central Gateway allocates time slices and frequency resources. The StarSpeed ​​communication module of the receiver sends the data to the StarSpeed ​​Central Gateway through the radio frequency antenna according to the allocated time slice and frequency. After receiving the data, the StarSpeed ​​Central Gateway sends it to the CIR operation display terminal. Then, the CIR operation display terminal sends the data to the ground station equipment through the CIR host.

[0051] In the above operations, the driver can move freely without being restricted by the length of the transmitter and receiver cables, and the line loss caused by the frequent stretching of the transmitter and receiver spiral cables is reduced, greatly reducing the call failure rate and maintenance intensity. The adoption of StarFlash technology effectively reduces the impact of electromagnetic interference within the locomotive, ensuring call quality and timeliness, and guaranteeing driving safety.

Claims

1. A method for implementing a transceiver based on domestically developed short-range wireless connection technology, characterized in that, The transceiver includes a power management module, a StarFlash communication module, an audio processing module, a security module, an audio interface, and a radio frequency antenna. The power management module is connected to the StarFlash communication module, the audio processing module, and the security module. The StarFlash communication module is bidirectionally connected to the audio processing module, the security module, and the radio frequency antenna. The audio processing module is connected to the audio interface. The power management module manages battery power, performs voltage conversion, and supplies power to other modules. The StarFlash communication module, model Hi2825, processes audio data and implements StarFlash communication. The audio processing module, model AK4637, processes digital audio data and converts analog audio signals, amplifying audio signals. The security module, model ATECC608A, provides data encryption and security protection. The audio interface connects the microphone and speaker. The radio frequency antenna transmits and receives radio frequency signals. The implementation of the transmitter and receiver is based on a StarScan communication module, which includes StarScan communication software. The specific implementation method is as follows: Communication establishment: After the receiver is powered on, it joins the StarSpark network managed by the StarSpark central gateway integrated into the CIR operation display terminal through the StarSpark communication module; Data transmission: The StarFlash communication module of the transmitter and receiver interacts with the CIR operation display terminal through the StarFlash central gateway in the CIR operation display terminal; Data processing: The StarScan communication module of the transmitter and receiver decrypts the received data through the security module and performs DA processing through the audio processing module before playing it through the speaker of the audio interface. The data to be sent by the microphone of the audio interface is processed by the audio processing module, encrypted by the security module, and then sent by the StarScan communication module. Communication End: After the data transmission or reception is completed, the microphone star flash communication module releases resources and enters sleep mode; The method by which the transmitter / receiver joins the StarFlash network managed by the StarFlash central gateway integrated in the CIR operation display terminal after powering on via the StarFlash communication module is as follows: The StarFlash communication module is first initialized as a slave device and periodically sends broadcast signals. After the StarFlash central gateway of the CIR operation display terminal, as the master device, scans the broadcast of the transmitter / receiver StarFlash communication module, it will identify its device type and supported services, and initiate a connection request; The transmitter / receiver StarFlash communication module and the StarFlash central gateway perform a protocol handshake, including synchronizing timing, exchanging capability parameters, communication frequency, and establishing an encrypted link; After the synchronization process is completed, the transmitter and receiver StarSpeed ​​communication modules join the StarSpeed ​​network managed by the StarSpeed ​​central gateway; The method by which the StarSpark communication module of the transmitter / receiver interacts with the CIR operation display terminal through the StarSpark central gateway in the CIR operation display terminal is as follows: when the transmitter / receiver or the CIR operation display terminal needs to send data, the StarSpark communication module will first send a data transmission request to the StarSpark central gateway. After receiving the request, the StarSpark central gateway allocates time slices and frequency resources according to the service priority and data volume. The transmitter / receiver and the CIR operation display terminal send and receive data according to the time and frequency allocated by the StarSpark central gateway, thereby realizing data communication. The method for transmitting and receiving the data is as follows: the StarSpark communication module of the transceiver decrypts the received data through the security module and performs DA processing through the audio processing module before playing it through the speaker of the audio interface. The method for transmitting the data to be sent by the microphone of the audio interface is as follows: the StarSpark communication module of the transceiver first sends the data received from the CIR operation display terminal to the security module for decryption, and then sends the decrypted data to the audio processing module. The audio processing module converts the data into an analog audio signal, amplifies it, and sends the output signal to the speaker of the audio interface for playback. The microphone of the audio interface outputs an analog mic signal and sends it to the audio processing module. The audio processing chip converts the mic analog signal into data and sends it to the StarSpark communication module. The StarSpark communication module sends the data to the security module for encryption, and then transmits the encrypted data through the radio frequency antenna.

2. The method for implementing a transceiver based on domestically developed short-range wireless connection technology according to claim 1, characterized in that, The power management module includes a 7.4V lithium battery, a 7.4V-3.3V power conversion chip I, and a 3.3V-1.8V power conversion chip II. The 7.4V lithium battery is connected to the 3.3V-1.8V power conversion chip II via the 7.4V-3.3V power conversion chip I. The 7.4V lithium battery supplies power to the 7.4V-3.3V power conversion chip I, model TPS54335ADDA, provides 3.3V power to the StarFlash communication module, security module, and audio processing module. The 3.3V-1.8V power conversion chip II, model RT9013-18, provides 1.8V power to the audio processing module.

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