Portable comprehensive multiplexing equipment with multi-channel transmission interface

Abstract

The utility model discloses portable comprehensive multiplexing equipment with a multichannel transmission interface. The portable comprehensive multiplexing equipment comprises a power supply circuit, a master control MCU (Microprogrammed Control Unit), a serial port-to-parallel port circuit, a photoelectric conversion circuit and a signal shaping circuit, the power circuit provides stable power. The main control MCU receives and processes the signal and then outputs the signal; the serial port-to-parallel port circuit is connected with the main control MCU and an external LED lamp group, converts a serial port signal into a parallel port signal, and inputs the parallel port signal into the LED lamp group; the photoelectric conversion circuit receives an external optical signal, converts the external optical signal into an electric signal and transmits the electric signal to the main control MCU, and converts the electric signal output by the main control MCU into an optical signal for external transmission; the signal shaping circuit is connected with external equipment and outputs the input signal after shaping the input signal. According to the utility model, through the integrated design of multiple circuit modules, the functions of bidirectional conversion between serial ports and parallel ports and photoelectric signals and signal shaping are realized, multi-channel signal transmission and processing are supported, and the multi-scene requirements of LED control, optical communication and the like are met; the structure is compact and portable, and all modules work cooperatively to improve the stability and compatibility of signal transmission.

Description

Technical Field

[0001] This utility model relates to a multiplexing device, and more specifically to a portable integrated multiplexing device with a multi-channel transmission interface. Background Technology

[0002] In the context of increasingly diversified application scenarios for modern communication technologies and equipment, traditional multiplexing devices, limited by their bulky size and single interface type, struggle to meet the portability and flexibility requirements of mobile scenarios such as field operations and emergency communications, resulting in low deployment efficiency and insufficient adaptability. While devices supporting multi-protocol converged communication can be compatible with different communication standards, they generally rely on external protocol converters for signal conversion. This not only increases the complexity of the system architecture but also introduces additional latency in the signal conversion process, severely impacting the real-time performance of data transmission. Furthermore, the reliability shortcomings of external components threaten the stability of the overall communication link. In addition, the deficiencies in the electromagnetic compatibility (EMC) design of existing devices make them susceptible to external interference in complex electromagnetic environments, leading to signal distortion or transmission interruption. This is particularly problematic in fields with extremely high requirements for secure communication, such as military and government sectors, where low bit error rates and interference resistance cannot be met. Technological innovation is urgently needed to overcome these multiple application bottlenecks. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a portable integrated multiplexing device with a multi-channel transmission interface to solve one or more of the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable integrated multiplexing device with a multi-channel transmission interface, comprising:

[0005] Power supply circuit, used to provide power;

[0006] The main control MCU is used to receive signals, process them, and then output them.

[0007] This serial-to-parallel converter connects to the main MCU and external LED lights. It converts the serial signal output from the main MCU into a parallel signal and inputs it into the external LED lights.

[0008] The photoelectric conversion circuit is connected to the main control MCU. It is used to receive external optical signals and convert them into electrical signals for the main control MCU. It also converts the electrical signals output by the main control MCU into optical signals and outputs them to the outside.

[0009] The signal shaping circuit is connected to an external device to shape and output the signal input from the external device.

[0010] As a further improvement of this utility model, the power supply circuit includes:

[0011] A first power supply circuit has an input terminal and an output terminal, wherein the input terminal is connected to a 12V power supply and the output terminal outputs a 5V power supply.

[0012] The second power supply circuit has an input terminal and an output terminal. The input terminal is connected to a 12V power supply, and the output terminal outputs a 3.3V power supply.

[0013] As a further improvement of this utility model, the second power supply circuit includes:

[0014] The second voltage regulator chip 5U1 has an input terminal, an enable terminal, and an output terminal. The input terminal is connected to a 12V power supply and is also connected to a resistor 5R1 before connecting to the enable terminal. The input terminal is also connected to capacitors 5C1 and 5C4 connected in parallel. The output terminal is connected to an inductor 5L1 and is connected in parallel to capacitors 5C10 and 5C13 to output a 5V power supply.

[0015] As a further improvement of this utility model, the serial-to-parallel converter circuit includes:

[0016] The shift register 3U4 has a signal input pin, a parallel output pin, and a serial output pin. The signal input pin is connected to the main control MCU, and the serial output pin outputs a serial signal.

[0017] Shift register 3U5 has a signal input pin, a parallel output pin, and a serial output pin. The signal input pin is connected to the serial output pin of shift register 3U4 to receive a serial signal, and the parallel output pin is connected to an external LED group to drive the LED group in parallel.

[0018] As a further improvement of this utility model, the photoelectric conversion circuit includes:

[0019] The photoelectric conversion chip 7CON1 has an input pin and an output pin. The input pin is connected to the main control MCU after being connected to a pull-up circuit, and the output pin is connected to an external optical fiber.

[0020] As a further improvement of this utility model, the pull-up circuit includes:

[0021] Several pull-up resistors are connected in parallel, with one end inputting power and the other end connected to the main control MCU;

[0022] Several pull-up capacitors are connected in parallel. One end of each capacitor is connected to a node where several pull-up resistors are connected to the main control MCU, and the other end is connected to the input pin of the photoelectric conversion chip 7CON1.

[0023] As a further improvement of this utility model, the signal shaping circuit includes:

[0024] The signal shaping chip 1U1 has input pins and output pins, which are connected to external devices to perform shaping on the external devices.

[0025] The beneficial effects of this utility model are as follows: Compared with the traditional multiplexing equipment and related communication equipment mentioned in the background art, this utility model has significant advantages. Traditional multiplexing equipment is bulky and has a single interface, which cannot meet the portability and flexibility requirements of mobile scenarios such as field operations. In contrast, this equipment has a compact structure and high integration of functional circuits, effectively improving portability. In terms of communication functions, existing equipment supporting multi-protocol converged communication relies on external protocol converters, resulting in system complexity, transmission delays, and low reliability. This utility model, through internally integrated multiple functional circuits, such as serial-to-parallel converters and photoelectric conversion circuits, can achieve multi-channel signal processing and conversion without additional complex external components, improving the real-time performance of data transmission and system stability. Furthermore, existing equipment has shortcomings in electromagnetic compatibility, failing to meet the requirements of high-security communication fields such as military and government. Although this utility model does not directly mention electromagnetic compatibility design, from the perspective of overall circuit integration design, it reduces the interference risk caused by external components, which to a certain extent helps to improve electromagnetic compatibility and better meets the stringent requirements for low bit error rate and anti-interference, breaking through multiple bottlenecks in the application of traditional equipment. Attached Figure Description

[0026] Figure 1 This is a circuit diagram for a serial-to-parallel converter.

[0027] Figure 2 This is a circuit diagram of a photoelectric conversion circuit;

[0028] Figure 3 This is a circuit diagram of a signal shaping circuit;

[0029] Figure 4 This is the circuit diagram for the power supply circuit. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0031] Referring to Figures 1 to 4, the portable integrated multiplexing device with a multi-channel transmission interface in this embodiment includes a power supply circuit, a main control MCU, a serial-to-parallel converter circuit, a photoelectric conversion circuit, and a signal shaping circuit. The power supply circuit provides a stable power supply to the device. The main control MCU receives and processes signals. The serial-to-parallel converter converts serial signals into parallel signals to drive the LED group. The photoelectric conversion circuit realizes bidirectional conversion between optical and electrical signals. The signal shaping circuit shapes the signals input from external devices. Through the coordinated operation of these circuits, the device achieves integrated processing and transmission of multi-channel signals, significantly improving portability and flexibility.

[0032] Furthermore, referring to Figure 4, the power supply circuit includes a first power supply circuit and a second power supply circuit. The first power supply circuit converts 12V power to 5V power to power some circuit modules; the second power supply circuit converts 12V power to 3.3V power to power modules with higher voltage requirements, such as the main control MCU. This multi-voltage output design meets the differentiated power requirements of different circuit modules, improving the compatibility and stability of the equipment.

[0033] Furthermore, referring to Figure 4, the second power supply circuit includes a second voltage regulator chip 5U1. Its input terminal is connected to a 12V power supply, and an enable terminal is connected via resistor 5R1 to ensure normal chip operation. Capacitors 5C1 and 5C4 are connected in parallel at the input terminal for filtering. The output terminal forms an LC filter circuit through inductor 5L1 and parallel capacitors 5C10 and 5C13, providing a stable 5V power supply. This circuit, through the combination of the voltage regulator chip and filtering components, effectively suppresses power fluctuations and electromagnetic interference, providing a stable and reliable power supply for the device and solving the problem of device susceptibility to interference in complex electromagnetic environments mentioned in the background art.

[0034] Furthermore, referring to Figure 1, the serial-to-parallel converter circuit includes shift register 3U4 and shift register 3U5. The signal input pin of shift register 3U4 is connected to the main control MCU to receive serial signals, and the serial output pin outputs a serial signal to the signal input pin of shift register 3U5. The parallel output pin of shift register 3U5 is connected to an external LED group. Through the cascading of the two shift registers, the serial signal is converted into a parallel signal to drive the LED group, achieving efficient signal conversion and transmission, and meeting the device's requirement for multi-channel output.

[0035] Furthermore, referring to Figure 2, the photoelectric conversion circuit includes a photoelectric conversion chip 7CON1. ​​Its input pins are connected to the main control MCU via pull-up circuits, and its output pins are connected to an external optical fiber. The pull-up circuit consists of several parallel pull-up resistors and pull-up capacitors. One end of the pull-up resistor is connected to the power supply, and the other end is connected to the main control MCU. One end of the pull-up capacitor is connected to the node where the pull-up resistor and the main control MCU are connected, and the other end is connected to the input pin of the photoelectric conversion chip 7CON1. ​​This circuit achieves bidirectional conversion between optical and electrical signals through the photoelectric conversion chip. The pull-up circuit ensures the stability of signal transmission, solves the problem of limited device interface types in the background technology, and supports multiple transmission methods such as optical fiber.

[0036] Furthermore, referring to Figure 3, the signal shaping circuit includes a signal shaping chip 1U1. Its input and output pins are connected to external devices to shape the signals input from those devices. Through the signal shaping chip, signal quality is effectively improved, signal distortion and interference are reduced, and the data transmission reliability of the device is enhanced, meeting the requirements for low bit error rates in military, government, and other fields.

[0037] In summary, this solution constructs a portable integrated multiplexing device with a multi-channel transmission interface through the collaborative design of a power supply circuit, a main control MCU, a serial-to-parallel converter circuit, a photoelectric conversion circuit, and a signal shaping circuit. Compared with the background technology, 1) the multi-voltage output power supply circuit design meets the differentiated power requirements of different modules, improving device compatibility and stability; 2) the serial-to-parallel converter circuit achieves efficient signal conversion and multi-channel output; 3) the photoelectric conversion circuit supports multiple transmission methods such as optical fiber, expanding the device interface types; and 4) the signal shaping circuit improves signal quality and enhances data transmission reliability.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A portable integrated multiplexing device with a multi-channel transmission interface, characterized in that: include: Power supply circuit, used to provide power; The main control MCU is used to receive signals, process them, and then output them. The serial-to-parallel converter circuit connects to the main control MCU and the external LED light group. It is used to convert the serial port output of the main control MCU into a parallel port signal and then input it into the external LED light group. The photoelectric conversion circuit is connected to the main control MCU. It is used to receive external optical signals and convert them into electrical signals for the main control MCU. It also converts the electrical signals output by the main control MCU into optical signals and outputs them to the outside. The signal shaping circuit is connected to an external device to shape and output the signal input from the external device.

2. The portable integrated multiplexing device with multi-channel transmission interface according to claim 1, characterized in that: The power supply circuit includes: A first power supply circuit has an input terminal and an output terminal, wherein the input terminal is connected to a 12V power supply and the output terminal outputs a 5V power supply. The second power supply circuit has an input terminal and an output terminal. The input terminal is connected to a 12V power supply, and the output terminal outputs a 3.3V power supply.

3. The portable integrated multiplexing device with multi-channel transmission interface according to claim 2, characterized in that: The second power supply circuit includes: The second voltage regulator chip 5U1 has an input terminal, an enable terminal, and an output terminal. The input terminal is connected to a 12V power supply and is also connected to a resistor 5R1 before connecting to the enable terminal. The input terminal is also connected to capacitors 5C1 and 5C4 connected in parallel. The output terminal is connected to an inductor 5L1 and then connected in parallel to capacitors 5C10 and 5C13 to output a 5V power supply.

4. The portable integrated multiplexing device with multi-channel transmission interface according to claim 1 or 2, characterized in that: The serial-to-parallel converter circuit includes: The shift register 3U4 has a signal input pin, a parallel output pin, and a serial output pin. The signal input pin is connected to the main control MCU, and the serial output pin outputs a serial signal. The shift register 3U5 has a signal input pin, a parallel output pin, and a serial output pin. The signal input pin is connected to the serial output pin of the shift register 3U4 to receive a serial signal, and the parallel output pin is connected to an external LED light group to drive the LED light group in parallel.

5. The portable integrated multiplexing device with multi-channel transmission interface according to claim 1 or 2, characterized in that: The photoelectric conversion circuit includes: The photoelectric conversion chip 7CON1 has an input pin and an output pin. The input pin is connected to the main control MCU after being connected to a pull-up circuit, and the output pin is connected to an external optical fiber.

6. The portable integrated multiplexing device with multi-channel transmission interface according to claim 5, characterized in that: The pull-up circuit includes: Several pull-up resistors are connected in parallel, with one end inputting power and the other end connected to the main control MCU; Several pull-up capacitors are connected in parallel. One end of each capacitor is connected to a node that is connected to several pull-up resistors and the main control MCU. The other end is connected to the input pin of the photoelectric conversion chip 7CON1.

7. The portable integrated multiplexing device with multi-channel transmission interface according to claim 1 or 2, characterized in that: The signal shaping circuit includes: The signal shaping chip 1U1 has input pins and output pins, which are connected to external devices to perform shaping on the external devices.

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