Radio station supporting double transmission modes

Abstract

The utility model discloses a radio station supporting double transmission modes, and belongs to the technical field of radio station communication. The radio station comprises a shell and a radio station body arranged in the shell, the radio station body comprises a first circuit layer, a second circuit layer, a third circuit layer and a fourth circuit layer which are sequentially and adjacently arranged, and the first circuit layer is provided with a display module, a peripheral interface module and a key module. The second circuit layer is provided with a power supply module, a central processor and a positioning module, the third circuit layer is provided with an information processing module, a sending routing switch, a receiving routing switch and a mode control module, and the fourth circuit layer is provided with an optical fiber receiving module, a wireless receiving module, an optical fiber sending module and a wireless sending module. According to the utility model, the positions of the modules in the radio station are reasonably arranged, the miniaturization design of the radio station is realized, the radio station is convenient to carry, and the use requirements of complex scenes are met.

Description

Technical Field

[0001] This utility model relates to the field of radio communication technology, and in particular to a radio that supports dual transmission modes. Background Technology

[0002] Radios are crucial equipment in military communications. Traditional radios use radio frequency (RF) communication to transmit information via radio waves. This design performs well in open terrain and conventional combat environments, but it has significant limitations in special environments: RF signals are easily intercepted, interfered with, and located, leading to risks of information leakage and communication interruption; in the complex electromagnetic environment of the battlefield, RF communication is susceptible to interference, making it difficult to guarantee communication quality; the electromagnetic radiation generated by RF transmission cannot meet the requirements of silent operations; and in high-intensity combat environments, the transmission distance of traditional RF communication is limited.

[0003] Fiber optic communication transmission does not generate electromagnetic radiation, thus avoiding the risk of signal interception and location from a physical structure perspective. However, it requires the prior laying of fiber optic lines, which limits its application scenarios.

[0004] To meet the diverse communication needs in complex environments, a radio design that supports both wireless and fiber optic transmission modes can be adopted. However, such radio equipment is often complex in structure and large in size, making it inconvenient to carry, in order to pursue longer communication distances and better communication quality. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and solve the problems of existing radio equipment that supports both wireless and fiber optic transmission modes being complex in structure, large in size, and inconvenient to carry.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A radio supporting dual transmission modes includes: a housing and a radio body disposed inside the housing. The radio body includes a first line layer, a second line layer, a third line layer, and a fourth line layer arranged sequentially adjacent to each other. The first line layer is provided with a display module, a peripheral interface module, and a button module. The second line layer is provided with a power module, a central processing unit, and a positioning module. The third line layer is provided with an information processing module, a transmit routing switch, a receive routing switch, and a mode control module. The fourth line layer is provided with an optical fiber receiving module, a wireless receiving module, an optical fiber transmitting module, and a wireless transmitting module.

[0008] The central processing unit is connected to the peripheral interface module, positioning module, mode control module and information processing module respectively.

[0009] The input terminal of the power module is connected to an external power source, and the output terminal of the power module is electrically connected to the central processing unit, the information processing module, and the mode control module.

[0010] The mode control module is communicatively connected to the receiver routing switch, the transmitter routing switch, the fiber optic receiver module, the wireless receiver module, the fiber optic transmitter module, and the wireless transmitter module, respectively.

[0011] The transmission routing switch includes a signal buffer unit and a channel selection unit. The signal buffer unit is connected to the signal processing module, and the channel selection unit is connected to the mode control module. The signal buffer unit is connected to the channel selection unit, and the channel selection switch is connected to the wireless transmission module and the optical fiber transmission module.

[0012] The receiving routing switch includes a signal selection unit and an output buffer unit. The output buffer unit is connected to the output terminals of the wireless receiving module and the optical fiber receiving module, respectively. The signal selection unit receives the control signal from the mode control module. The signal selection unit and the output buffer unit are connected. The output terminal of the output buffer unit is connected to the information processing module.

[0013] The optical fiber receiving module includes: a first photodetector that receives an optical fiber input signal; an output terminal of the first photodetector connected to an input terminal of a preamplifier; an input terminal of a peak detection circuit connected to an output terminal of the preamplifier, and an output terminal of the peak detection circuit connected to an input terminal of a limiting amplifier; an output terminal of the preamplifier connected to an input terminal of the limiting amplifier, and an output terminal of the limiting amplifier connected to a receiver selection switch.

[0014] The fiber optic transmission module adopts a direct modulation structure, which includes a laser driving circuit and a first laser. The input of the laser driving circuit is connected to the output of a transmission routing switch, and the output of the laser driving circuit is connected to the laser. The first laser outputs an optical signal. The laser driving circuit is connected to a temperature compensation circuit. The fiber optic transmission module also includes a feedback control structure, which includes a second photodetector and an automatic power control circuit. The first laser is connected to the input of the second photodetector, and the output of the second photodetector is connected to the automatic power control circuit. The output of the automatic power control circuit is connected to the laser driving circuit.

[0015] The fiber optic transmission module adopts an external modulation structure, which includes a second laser and an external modulator. The external modulator is used to receive electrical signals from the transmit routing switch. The second laser is connected to the external modulator, and the external modulator outputs optical signals.

[0016] This invention adds fiber optic transmission functionality to a traditional radio and rationally arranges the positions of the various internal modules, achieving a miniaturized design that is easy to carry and meets the needs of complex scenarios. Users can choose the appropriate transmission method according to their actual environment. Fiber optic reception and transmission operate in separate paths from wireless reception and transmission, ensuring no interference. Fiber optic transmission does not generate electromagnetic radiation, physically avoiding the risk of signal interception and location, thus improving the radio's communication security and enhancing its anti-interference capabilities.

[0017] Meanwhile, this utility model provides two physical transmission methods, which can be switched to the other transmission mode when one transmission mode is unavailable, thus increasing the redundancy of communication. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the dual-transmission mode radio of this utility model;

[0019] Figure 2 This is a diagram showing the connection relationships between the various modules of the main body of the radio unit of this utility model;

[0020] Figure 3 This is a structural block diagram of the routing switch of this utility model;

[0021] Figure 4 This is a structural block diagram of the receiving and selecting switch of this utility model;

[0022] Figure 5 This is a structural block diagram of the direct modulation structure optical fiber transmission module of Embodiment 1 of this utility model;

[0023] Figure 6 This is a structural block diagram of the external modulation structure optical fiber transmission module of Embodiment 2 of this utility model;

[0024] Figure 7 This is a structural block diagram of the optical fiber receiving module of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0026] Example 1

[0027] refer to Figure 1 and Figure 2As shown, a radio supporting dual transmission modes includes a housing 1 and a radio body 2 disposed inside the housing. The radio body 2 includes a first line layer, a second line layer, a third line layer, and a fourth line layer arranged sequentially and adjacently. The first line layer houses a display module, a peripheral interface module, and a button module. The second line layer houses a power module, a central processing unit, and a positioning module. The third line layer houses an information processing module, a receive / transmit route selection switch, and a mode control module. The fourth line layer houses an optical fiber receiver module, a wireless receiver module, an optical fiber transmitter module, and a wireless transmitter module. This layered structure allows for a more compact arrangement of components within the radio body 1, resulting in a smaller radio size.

[0028] The central processing unit is connected to the peripheral interface module, positioning module, information processing module and mode control module respectively. The central processing unit receives and processes the information sent by each module of the radio and coordinates the work of each module. In this embodiment, the central processing unit is a TMS320C6747, which has powerful processing performance and lower power consumption.

[0029] The button module is used for inputting information or commands, and the display module is used for displaying received or sent information.

[0030] The power module's input is connected to an external power source, and its output is electrically connected to the central processing unit, information processing module, and mode control module. The power module provides power support for the radio's operation.

[0031] The mode control module is communicatively connected to the receive routing switch, the transmit routing switch, the fiber optic receiver module, the wireless receiver module, the fiber optic transmitter module, and the wireless transmitter module. The mode control module receives instructions from the central processing unit and generates corresponding control signals. The receive routing switch, the transmit routing switch, the fiber optic receiver module, the wireless receiver module, the fiber optic transmitter module, and the wireless transmitter module are controlled by the control signals and operate in wireless transmission mode and fiber optic transmission mode.

[0032] The information processing module is connected to the input terminal of the transmitting route selector and the output terminal of the receiving route selector, respectively. It preprocesses the information transmitted through the receiving route selector and sends it to the central processing unit, or preprocesses the information to be sent by the central processing unit and transmits it to the transmitting route selector. The information processing module is responsible for data encoding and decoding, format conversion and other processing functions.

[0033] In this embodiment, the information processing module is equipped with a signal processing chip, model AD9361, whose highly integrated design makes its area small, effectively reducing the overall size of the radio.

[0034] The output of the transmit routing switch is connected to the input of the fiber optic transmit module and the input of the wireless transmit module, respectively; the input of the receive routing switch is connected to the output of the fiber optic receive module and the output of the wireless receive module, respectively.

[0035] The output of the fiber optic transmitting module outputs an optical signal through an optical fiber, the input of the fiber optic receiving module receives the optical signal transmitted through the optical fiber, the output of the wireless transmitting module transmits a wireless signal, and the input of the wireless receiving module receives external wireless signals.

[0036] The mode control module communicates with the transmit and receive routing switches, and is responsible for controlling the working status of the transmit and receive routing switches to enable the radio to switch between wireless transmission mode and fiber optic transmission mode; the transmit and receive routing switches are responsible for signal channel selection; the fiber optic transmit module and fiber optic receive module are responsible for photoelectric signal conversion to realize fiber optic transmission function.

[0037] In this embodiment, the mode control module includes a mode selection unit and a control signal generation unit. The mode selection unit is an STM32F407VGT6, and the control signal generation unit is a CD74HC4052. Both have lower power consumption, which is beneficial for miniaturization and high-density integration.

[0038] In wireless transmission mode, the control signal generating unit sends a "select wireless channel" control signal to the transmit routing switch and the receive routing switch, while activating the wireless transmit module and the wireless receive module, and setting the fiber optic transmit module and the fiber optic receive module to sleep mode. In fiber optic transmission mode, the control signal generating unit sends a "select fiber optic channel" control signal to the transmit routing switch and the receive routing switch, while activating the fiber optic transmit module and the fiber optic receive module, and setting the wireless transmit module and the wireless receive module to sleep mode.

[0039] The mode control module also has a status indication function, which displays the current working mode status through LED indicators, making it convenient for users to identify and operate.

[0040] refer to Figure 3 As shown, the transmit routing switch includes a signal buffer unit and a channel selection unit. The signal buffer unit is connected to the signal processing module, the channel selection unit is connected to the mode control module, the signal buffer unit is connected to the channel selection unit, and the channel selection switch is connected to the wireless transmit module and the fiber optic transmit module.

[0041] More specifically, the signal buffer unit receives electrical signals from the information processing module and performs temporary storage and drive capability enhancement processing on the electrical signals; the channel selection unit selects to transmit the processed electrical signals to the wireless transmission module or the fiber optic transmission module according to the control signals from the mode control module.

[0042] The transmit routing switch employs a purely hardware-based method for channel selection, without involving protocol processing or data format conversion, ensuring low latency and high reliability in signal transmission. The channel selection unit utilizes an internal electronic switching circuit to switch signal paths based on control signals, featuring fast switching speed and low power consumption. In this embodiment, the signal buffer unit is model SN74LVC244A, and the channel selection unit is model ADG1419, which facilitates the miniaturization and high-density integration of this radio.

[0043] refer to Figure 4 As shown, the receiver routing switch includes a signal selection unit and an output buffer unit. The output buffer unit is connected to the output terminals of the wireless receiver module and the fiber optic receiver module, respectively. The signal selection unit receives the control signal from the mode control module. The signal selection unit and the output buffer unit are connected, and the output terminal of the output buffer unit is connected to the information processing module.

[0044] The signal selection unit is connected to the output terminals of the wireless receiving module and the optical fiber receiving module respectively. According to the control signal of the mode control module, the signal selection unit transmits the signal from the optical fiber receiving module or the wireless receiving module to the output buffer unit. The output buffer unit temporarily stores the received signal and enhances its driving capability before transmitting it to the information processing module.

[0045] Similar to the transmit route selector, the receive route selector also employs a purely hardware-based approach to select the channel, ensuring low latency and high reliability in signal transmission. The signal selection unit uses an internal electronic switching circuit to switch the signal path based on a control signal. In this embodiment, the signal selection unit is model ADG774, and the output buffer unit is model SN74AVC16244, which facilitates the miniaturization and high-density integration of this radio.

[0046] refer to Figure 7 As shown, the fiber optic receiving module includes a first photodetector, a preamplifier, a peak detection circuit, and a limiting amplifier. The first photodetector receives the fiber optic input signal and converts it into a current signal. The preamplifier converts the current signal output by the first photodetector into a voltage signal and amplifies it initially. The peak detection circuit monitors the voltage signal strength output by the preamplifier and generates a control signal. The limiting amplifier amplifies the voltage signal output by the preamplifier and limits the signal amplitude according to the control signal of the peak detection circuit. The output of the limiting amplifier is transmitted to the information processing module through a receiving selection switch.

[0047] refer to Figure 5As shown, in this embodiment, the optical fiber transmission module adopts a direct modulation structure, including: a laser driving circuit and a laser. The input end of the laser driving circuit is connected to the output end of the transmission routing switch, and the output end of the laser driving circuit is connected to the laser. The laser outputs the required optical signal. The laser driving circuit directly modulates the output light intensity of the laser according to the received electrical signal, and the optical signal generated by the laser is transmitted through the optical fiber interface.

[0048] The laser drive circuit is also connected to a temperature compensation circuit, which monitors the ambient temperature and adjusts the operating parameters of the laser drive circuit to ensure stable operation of the laser.

[0049] To ensure stable optical signals, the fiber optic transmission module is equipped with a feedback control structure, including a second photodetector and an automatic power control circuit. The laser is connected to the input of the second photodetector, and the output of the second photodetector is connected to the automatic power control circuit. The output of the automatic power control circuit is connected to the laser drive current. The second photodetector monitors the optical power of the laser in real time, and the automatic power control circuit adjusts the laser bias current in real time based on the optical power monitoring results.

[0050] The fiber optic transmitting module and fiber optic receiving module are connected to the fiber optic interface, the wireless transmitting module is connected to the transmitting antenna, and the wireless receiving module is connected to the receiving antenna.

[0051] The receiver selection switch is connected to the fiber optic receiver module or the wireless receiver module to avoid interference from wireless signals during fiber optic communication, or interference from fiber optic signals during wireless communication, thus ensuring normal communication of the radio system.

[0052] Example 2

[0053] refer to Figure 6 As shown, the optical fiber transmission module of this invention adopts an external modulation structure, which includes a second laser and an external modulator. The second laser continuously generates a stable optical carrier, and the external modulator receives an electrical signal from a transmit routing switch, modulates the optical carrier, and then transmits the modulated optical signal through an optical fiber interface. Compared with a direct modulation structure, the external modulation structure is suitable for higher data transmission rates.

[0054] The other structures in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.

[0055] In summary, this invention adds fiber optic transmission functionality to a traditional radio and rationally arranges the positions of the various modules within the radio, achieving a miniaturized design that is easy to carry and meets the needs of complex scenarios. Users can choose the appropriate transmission method according to their actual environment. Fiber optic reception and transmission operate in separate paths from wireless reception and transmission, ensuring no interference. Fiber optic transmission does not generate electromagnetic radiation, physically avoiding the risk of signal interception and location, thus improving the radio's communication security and enhancing its anti-interference capabilities. It provides two physical transmission modes, allowing switching to the other when one mode is unavailable, increasing communication redundancy.

[0056] This invention features a simple structure, convenient operation, and strong practicality. Through purely physical improvements, it significantly enhances the environmental adaptability and communication reliability of ultra-shortwave radios, providing strong support for military communications, especially communications under special conditions, and has significant practical value.

[0057] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A radio that supports dual transmission modes, characterized in that, include: The radio body comprises a housing and a radio unit housed inside the housing. The radio unit includes a first line layer, a second line layer, a third line layer, and a fourth line layer arranged sequentially and adjacently. The first line layer is equipped with a display module, a peripheral interface module, and a button module. The second line layer is equipped with a power module, a central processing unit, and a positioning module. The third line layer is equipped with an information processing module, a transmit routing switch, a receive routing switch, and a mode control module. The fourth line layer is equipped with an optical fiber receiving module, a wireless receiving module, an optical fiber transmitting module, and a wireless transmitting module.

2. The radio station supporting dual transmission modes according to claim 1, characterized in that, The central processing unit is connected to the peripheral interface module, positioning module, mode control module and information processing module respectively.

3. The radio station supporting dual transmission modes according to claim 1, characterized in that, The input terminal of the power module is connected to an external power source, and the output terminal of the power module is electrically connected to the central processing unit, the information processing module, and the mode control module.

4. The radio station supporting dual transmission modes according to claim 1, characterized in that, The mode control module is communicatively connected to the receiver routing switch, the transmitter routing switch, the fiber optic receiver module, the wireless receiver module, the fiber optic transmitter module, and the wireless transmitter module, respectively.

5. The radio station supporting dual transmission modes according to claim 1, characterized in that, The transmission routing switch includes a signal buffer unit and a channel selection unit. The signal buffer unit is connected to the signal processing module, and the channel selection unit is connected to the mode control module. The signal buffer unit is connected to the channel selection unit, and the channel selection switch is connected to the wireless transmission module and the optical fiber transmission module.

6. The radio station supporting dual transmission modes according to claim 1, characterized in that, The receiving routing switch includes a signal selection unit and an output buffer unit. The output buffer unit is connected to the output terminals of the wireless receiving module and the optical fiber receiving module, respectively. The signal selection unit receives the control signal from the mode control module. The signal selection unit and the output buffer unit are connected. The output terminal of the output buffer unit is connected to the information processing module.

7. The radio station supporting dual transmission modes according to claim 1, characterized in that, The optical fiber receiving module includes: a first photodetector that receives an optical fiber input signal; an output terminal of the first photodetector connected to an input terminal of a preamplifier; an input terminal of a peak detection circuit connected to an output terminal of the preamplifier, and an output terminal of the peak detection circuit connected to an input terminal of a limiting amplifier; an output terminal of the preamplifier connected to an input terminal of the limiting amplifier, and an output terminal of the limiting amplifier connected to a receiver selection switch.

8. The radio station supporting dual transmission modes according to claim 1, characterized in that, The fiber optic transmission module adopts a direct modulation structure, which includes a laser driving circuit and a first laser. The input of the laser driving circuit is connected to the output of a transmission routing switch, and the output of the laser driving circuit is connected to the laser. The first laser outputs an optical signal. The laser driving circuit is connected to a temperature compensation circuit. The fiber optic transmission module also includes a feedback control structure, which includes a second photodetector and an automatic power control circuit. The first laser is connected to the input of the second photodetector, and the output of the second photodetector is connected to the automatic power control circuit. The output of the automatic power control circuit is connected to the laser driving circuit.

9. The radio station supporting dual transmission modes according to claim 1, characterized in that, The fiber optic transmission module adopts an external modulation structure, which includes a second laser and an external modulator. The external modulator is used to receive electrical signals from the transmit routing switch. The second laser is connected to the external modulator, and the external modulator outputs optical signals.

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