Multi-format file transmission system based on heterogeneous link

Abstract

The utility model relates to a multi-format file transmission system based on a heterogeneous link, which comprises a sending terminal, a receiving terminal, at least one optical communication base station and an information transmission management system, and is characterized in that the sending terminal is connected with a sending optical communication base station in the at least one optical communication base station through wireless optical communication; the receiving terminal is connected with a receiving optical communication base station in the at least one optical communication base station through wireless optical communication; and the at least one optical communication base station is connected with the information transmission management system through a wired transmission link. The system utilizes the characteristics of wireless optical frequency directional radiation and rapid attenuation, data transmission is carried out through optical signals and an optical communication base station, the problem of electromagnetic signal leakage existing in radio communication is avoided, and the system can be used in special areas such as mountains, ditches and borders.

Description

Technical Field

[0001] This utility model belongs to the field of communication technology, specifically relating to a multi-format file transfer system based on heterogeneous links. Background Technology

[0002] With the development of communication technology, people are no longer satisfied with existing radio frequency communication methods and yearn for a high-quality, high-speed, highly secure, and low-cost wireless communication method. Based on this, heterogeneous link communication has emerged. Data flow in heterogeneous links involves multiple transmission methods, making heterogeneous link communication a transmission method that incorporates multiple types of information. This communication method is more adaptable to various scenarios, and the multiple data flow methods ensure stable and fast data transmission.

[0003] However, in electromagnetically sensitive environments such as underground areas and mining areas, conventional electromagnetic signal methods have long been unable to be used for heterogeneous link communication and positioning, resulting in difficulties in communication between personnel and making it impossible to implement refined management of personnel communication, scheduling, and activity status within the area. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a multi-format file transfer system based on heterogeneous links. The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] This utility model embodiment provides a multi-format file transfer system based on heterogeneous links, including: a sending terminal, a receiving terminal, at least one optical communication base station, and an information transmission management system, wherein...

[0006] The transmitting terminal is connected to the transmitting optical communication base station in the at least one optical communication base station via wireless optical communication;

[0007] The receiving terminal is connected to the receiving optical communication base station in the at least one optical communication base station via wireless optical communication.

[0008] The at least one optical communication base station is connected to the information transmission management system via a wired transmission link.

[0009] In one embodiment of this utility model, both the sending terminal and the receiving terminal include: an information prompting terminal and a handheld communication terminal, wherein,

[0010] The information prompting terminal is connected to the optical communication base station via wireless optical communication;

[0011] The handheld communication terminal is connected to the optical communication base station via wireless optical communication.

[0012] In one embodiment of this utility model, the optical communication base station is equipped with an infrared emitter and an infrared receiver, and the information notification terminal is equipped with an infrared emitter and an infrared receiver, wherein...

[0013] The infrared emitter of the optical communication base station sends data to the infrared receiver of the information prompt terminal via an infrared carrier wave; the infrared emitter of the information prompt terminal sends data to the infrared receiver of the optical communication base station via an infrared carrier wave.

[0014] In one embodiment of this utility model, the optical communication base station is further equipped with a visible light transmitter and a high-frequency infrared receiver, and the handheld communication terminal is equipped with a visible light receiver and a high-frequency infrared transmitter.

[0015] The visible light transmitter of the optical communication base station transmits data to the visible light receiver of the handheld communication terminal via visible light; the high-frequency infrared transmitter of the handheld communication terminal transmits data to the high-frequency infrared receiver of the optical communication base station via high-frequency infrared light.

[0016] In one embodiment of this utility model, the infrared emitter, the high-frequency infrared transmitter, and the visible light emitter all include light-emitting diode light sources;

[0017] The infrared receiver, the high-frequency infrared receiver, and the visible light receiver all include one or more of the following: photodiode, avalanche photodiode, photomultiplier tube, and single-photon avalanche diode.

[0018] In one embodiment of this utility model, the information prompting terminal is also equipped with an audio-visual reminder.

[0019] In one embodiment of this utility model, the handheld communication terminal of the transmitting terminal is provided with one or more of a text encoder, a voice encoder, and an image encoder; correspondingly, the handheld communication terminal of the receiving terminal is provided with one or more of a text decoder, a voice decoder, and an image decoder.

[0020] In one embodiment of this utility model, the handheld communication terminal includes a mobile handheld communication terminal or a fixed handheld communication terminal.

[0021] The information notification terminal includes a mobile information notification terminal or a fixed information notification terminal.

[0022] In one embodiment of this utility model, the at least one optical communication base station is connected to the information transmission management system via a wired transmission link using network cable or power line carrier technology.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] In this multi-format file transfer system based on heterogeneous links, the sending terminal is connected to the sending optical communication base station via wireless optical communication, and the receiving terminal is connected to the receiving optical communication base station via wireless optical communication. Utilizing the directional radiation and rapid attenuation characteristics of wireless optical frequencies, data is transmitted through optical signals and optical communication base stations, avoiding the electromagnetic signal leakage problem inherent in radio communication. This system can be used in special areas such as mountains, trenches, and border regions, solving the problem of communication and positioning using electromagnetic signals in electromagnetically sensitive environments such as underground areas and mining areas. Furthermore, the system has good electromagnetic compatibility and low construction costs. Attached Figure Description

[0025] Figure 1 A schematic diagram of a multi-format file transfer system based on heterogeneous links provided for an embodiment of this utility model;

[0026] Figure 2 A schematic diagram of a multi-format file transfer system based on heterogeneous links provided for embodiments of this utility model;

[0027] Figure 3 A flowchart for sending and receiving multiple files is provided for an embodiment of this utility model. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0029] Example 1

[0030] Please see Figure 1 , Figure 1 This is a schematic diagram of a multi-format file transfer system based on a heterogeneous link, provided as an embodiment of the present invention. The system includes a sending terminal 1, a receiving terminal 2, at least one optical communication base station 3, and an information transmission management system 4. The sending terminal 1 is wirelessly connected to the transmitting optical communication base station of the at least one optical communication base station 3; the receiving terminal 2 is wirelessly connected to the receiving optical communication base station of the at least one optical communication base station 3; and the at least one optical communication base station 3 is connected to the information transmission management system 4 via a wired transmission link.

[0031] Specifically, transmitting terminal 1 parses the format of the file to be sent, converts it into data information according to the file format, and modulates the data information onto an optical signal for transmission. At least one transmitting optical communication base station in the optical communication base station 3 receives and forwards the optical signal sent by transmitting terminal 1. The information transmission management system 4 receives the optical signal forwarded by the transmitting optical communication base station, determines the receiving end address based on the positioning data in the optical signal, and converts it back into an optical signal according to the receiving end address. At least one receiving optical communication base station in the optical communication base station 3 sends a prompt message after receiving the optical signal forwarded by the information transmission management system; receiving terminal 2 receives the prompt message and sends a confirmation of receipt command; at least one optical communication base station 3 converts it back into an optical signal according to the confirmation of receipt command; receiving terminal 2 receives the optical signal and parses and displays the data information in the optical signal according to the file format.

[0032] Optical communication base stations provide wireless coverage, enabling wireless optical signal transmission between wired communication networks and wireless optical communication. The information transmission management system transmits information between the optical communication base stations and terminals. In this embodiment, the number of at least one optical communication base station 3 can be one, meaning the transmitting optical communication base station and the receiving optical communication base station are the same optical communication base station. In this case, the transmitting terminal 1 and the receiving terminal 2 are within the coverage area of ​​the same optical communication base station. Alternatively, the number of at least one optical communication base station 3 can be two, meaning the transmitting optical communication base station and the receiving optical communication base station are different optical communication base stations. In this case, the transmitting terminal 1 is within the coverage area of ​​the transmitting optical communication base station and establishes a wireless optical communication connection with it, while the receiving terminal 2 is within the coverage area of ​​the receiving optical communication base station and establishes a wireless optical communication connection with it.

[0033] It should be noted that the multi-format file transfer system of this embodiment may include multiple terminals, among which there are sending terminals and receiving terminals. Each terminal can be a sending terminal or a receiving terminal; correspondingly, the number of optical communication base stations can be one or more.

[0034] In one specific embodiment, both the sending terminal 1 and the receiving terminal 2 include: an information prompting terminal 5 and a communication terminal 6, wherein the information prompting terminal 5 is connected to the corresponding optical communication base station 3 via wireless optical communication; and the communication terminal 6 is connected to the corresponding optical communication base station 3 via wireless optical communication.

[0035] Specifically, information prompting terminal 5 receives prompt information and generates audio-visual alert signals to remind the user based on the prompt information. In sending terminal 1, communication terminal 6 parses the format of the file to be sent, converts it into data information according to the file format, and modulates the data information onto an optical signal for transmission. In receiving terminal 2, communication terminal 6 sends a confirmation receipt command based on the prompt information to receive the optical signal, and parses and displays the data information in the optical signal according to the file format.

[0036] In one specific embodiment, the communication terminal 6 can be a mobile handheld communication terminal 61 or a fixed communication terminal 62. The fixed communication terminal 62 can be mounted on a fixed bracket 7, such as... Figure 1 As shown.

[0037] This embodiment utilizes wireless optical frequency communication for file transfer. Wireless optical frequency communication is a communication method that uses optoelectronic devices to receive light signals and convert them into electrical signals, and then completes data decoding at the receiving end. It uses fluorescent lamps or light-emitting diodes to emit high-speed, flickering light signals that are imperceptible to the naked eye. By modulating the intensity or frequency of the light, binary data is converted into light signals. The modulated and encoded light signals carry the information to be transmitted. At the receiving end, the received light signals are converted into electrical signals by an optoelectronic converter, and the electrical signals are decoded to recover the transmitted information.

[0038] In one specific embodiment, the information prompting terminal 5 is also equipped with an audio-visual reminder.

[0039] In one specific embodiment, at least one optical communication base station is connected to the information transmission management system via a wired transmission link using network cable or power line communication (PLC) technology.

[0040] The specific process of wireless optical communication in this embodiment is as follows: The sender sends information and parses the file format through the communication terminal 6 of the sending terminal 1, converts the file into data information, modulates it onto an optical signal, and sends it. The sending optical communication base station receives the data information, the receiving end ID number, and the file type, etc. After successfully receiving the file, the sending optical communication base station forwards it to the information transmission management system 4. The information transmission management system 4 locates the receiving end's position using positioning data and locks the receiving optical communication base station ID using a location map. Then, the information transmission management system 4 forwards the data to the receiving optical communication base station above the receiving end via a network cable or PLC. After successfully receiving the information, the receiving optical communication base station first sends a prompt message to the information prompt terminal 5. The information prompt terminal 5 uses an audio-visual reminder device to alert the receiving end that there is information. The receiving end sends a confirmation of receipt to the receiving optical communication base station through the communication terminal 6. Subsequently, it receives the data modulated and transmitted to the receiving end by the optical communication base station. The receiving end receives and parses the file data and file format through the communication terminal 6, and then performs UI display and storage.

[0041] Please see Figure 2 , Figure 2 This is a schematic diagram of a multi-format file transfer system based on a heterogeneous link, provided as an embodiment of the present invention. In one specific embodiment, the optical communication base station is equipped with a visible light transmitter 21, an infrared receiver 22, a high-frequency infrared receiver 23, and an infrared emitter 24; the communication terminal 6 is equipped with a high-frequency infrared transmitter 63 and a visible light receiver 64; and the information prompting terminal 5 is equipped with an infrared emitter 51 and an infrared receiver 52.

[0042] Specifically, the infrared emitter 51 of the information prompt terminal 5 transmits data to the infrared receiver 22 of the optical communication base station via an infrared carrier wave; the infrared emitter 24 of the optical communication base station transmits data to the infrared receiver 52 of the information prompt terminal 5 via an infrared carrier wave. The visible light emitter 21 of the optical communication base station transmits data to the visible light receiver 64 of the communication terminal 6 via visible light; the high-frequency infrared transmitter 63 of the communication terminal 6 transmits data to the high-frequency infrared receiver 23 of the optical communication base station via high-frequency infrared light. In this embodiment, the frequency of the high-frequency infrared light is 38kHz to 2MHz.

[0043] It is understood that the optical communication base station transmits data to the communication terminal 6 using visible light, while the communication terminal 6 transmits data to the optical communication base station using high-frequency infrared light. The optical communication base station uses a high-frequency receiver to receive the data transmitted by the communication terminal 6. Information prompts that the terminal 5 and the optical communication base station exchange data via infrared carrier waves.

[0044] In one specific embodiment, the infrared emitters 24 and 51, the high-frequency infrared transmitter 63, and the visible light emitter 21 all include light-emitting diodes (LEDs) as light sources; the infrared receivers 22 and 52, the high-frequency infrared receiver 23, and the visible light receiver 64 serve as photodetectors and all include one or more of photodiodes (PDs), avalanche photodiodes (APDs), photomultiplier tubes (PMTs), and single-photon avalanche diodes (SPADs).

[0045] This embodiment is based on wireless optical frequency communication technology. The light emitted by the communication terminal, information prompt terminal, and optical communication base station is modulated onto the LED light source used for lighting. The fast response characteristics of the LED light source are used to realize high-speed wireless information transmission in the wireless optical spectrum. Without affecting normal lighting, the information is modulated into the visible light emitted by the LED lamp. The receiving end uses a photodetector (PD, APD, PMT, SPAD, etc.) to receive the visible light containing the information and convert it into an electrical signal. The corresponding modulation information is then demodulated from it, so that LED lighting and high-speed communication are integrated, and the lighting equipment has the characteristics of a "wireless router".

[0046] The system in this embodiment achieves multiple information transmissions through heterogeneous links. The data flow of heterogeneous links includes multiple transmission methods. This transmission method, which includes multiple types of information, is more adaptable to various scenarios. At the same time, multiple data flow methods ensure stable and fast data transmission, which can significantly improve data transmission efficiency and security stability.

[0047] Please see Figure 3 , Figure 3 A flowchart for sending and receiving multiple files is provided for an embodiment of this utility model.

[0048] In one specific embodiment, the communication terminal of the sending terminal is equipped with one or more of a text encoder, a voice encoder, and an image encoder; correspondingly, the communication terminal of the receiving terminal is equipped with one or more of a text decoder, a voice decoder, and an image decoder. It can be understood that the multi-format file transfer system of this embodiment supports the transmission of one or more of text, voice, and image formats.

[0049] When the file format is text, the sending terminal 1 uses the text encoder of the communication terminal 6 to modulate the text content into text information using UTF-8 encoding and sends it, and marks the file type flag as the first number in the communication protocol format; the receiving terminal 2 uses the text decoder of the communication terminal 6 to parse the text information into text content using UTF-8 decoding according to the second number and displays it.

[0050] For example, when the file format is text, after clicking the send control on the communication terminal 6, the content in the text box on the interface is obtained. The text encoder uses UTF-8 encoding to modulate and send the text content, and marks the file type flag as "01" in the communication protocol format. After receiving the text information, the text decoder determines that the received content is text information based on the file type flag "01", and decodes and displays the text information.

[0051] When the file format is voice, the sending terminal 1 modulates the voice content into voice data through the voice encoder of the communication terminal 6 and sends it, and marks the file type flag as the second number in the communication protocol format; the receiving terminal 2 receives the voice data through the communication terminal 6, uses the voice decoder to decode and recognize the voice data as voice content according to the second number, calls the voice control to display the voice content, and saves the valid data segment of the voice data.

[0052] Specifically, when the sent file is an audio file, the voice encoder of communication terminal 6 modulates and compresses the audio during recording. The compressed hexadecimal audio data is then transmitted according to the encoding format agreed upon by the voice chip. Similarly, the file type flag "02" in the communication protocol format indicates to the receiving end that the received content is audio. After receiving terminal 2 receives and recognizes the audio data through the voice decoder, the control invokes a fixed voice control to display on the interface. The system also extracts the valid data segment of the audio data and saves it to the external storage SD card according to the naming rule of "person + voice order" for personnel to review audio records. When the user clicks the control to record and play back the audio, the system retrieves the corresponding file from the SD card by obtaining the name of the person currently on the interface and the coordinates of the voice control, reads the file content, and plays the audio.

[0053] When the file format is an image, the sending terminal 1 uses an image encoder to modulate the image content into image data using image compression encoding and sends it, and marks the file type flag as the third number in the communication protocol format; the receiving terminal 2 uses an image decoder to decode and recognize the image data as image content based on the third number and displays it.

[0054] Specifically, when the sent file is an image file, sending terminal 1 converts the image to hexadecimal using an image encoder before sending it. The file type flag in the communication protocol format is marked as "03" to inform the receiving end that the received content is an image. Receiving terminal 2 receives the image and, after recognizing the image data using an image decoder, displays the image on the interface using a control.

[0055] This embodiment of a multi-format file transfer system based on heterogeneous links is a confidential and secure communication system. Utilizing wireless optical frequency technology, it transmits data through optical signals and optical communication base stations, releasing the enormous communication capacity of optical communication. Leveraging the directional radiation and rapid attenuation characteristics of wireless optical frequency communication, it quickly constructs a secure information space, compensating for the shortcomings of radio communication in harsh environments, such as poor signal strength, poor anti-interference, and poor confidentiality. It avoids the electromagnetic signal leakage problem inherent in radio communication, possesses good electromagnetic compatibility, and opens up a new avenue for secure interconnection. Compared to other new communication network methods, wireless optical frequency communication only requires modification of the lighting fixtures in the venue, resulting in low construction costs and stable signals. It can be used in conditions such as caves, tunnels, extreme environments, and remote environments. It solves the long-standing problem in electromagnetically sensitive environments such as underground areas and mining areas where electromagnetic signal means cannot be used for communication and positioning, leading to difficulties in communication between personnel and the inability to implement refined management of personnel communication, scheduling, and activity status within the area.

[0056] The multi-format file transfer system based on heterogeneous links in this embodiment supports real-time viewing, historical storage, and backup to external storage devices for file formats such as text, voice, images, and videos through a well-constructed information transmission environment. The data is reliable and the transmission is secure, meeting a variety of communication needs.

[0057] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0059] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0060] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A multi-format file transfer system based on heterogeneous links, characterized in that, include: The system comprises a transmitting terminal, a receiving terminal, at least one optical communication base station, and an information transmission management system, wherein... The transmitting terminal is connected to the transmitting optical communication base station in the at least one optical communication base station via wireless optical communication; The receiving terminal is connected to the receiving optical communication base station in the at least one optical communication base station via wireless optical communication. The at least one optical communication base station is connected to the information transmission management system via a wired transmission link.

2. The multi-format file transfer system based on heterogeneous links according to claim 1, characterized in that, Both the sending terminal and the receiving terminal include: an information notification terminal and a communication terminal, wherein... The information prompting terminal is connected to the optical communication base station via wireless optical communication; The communication terminal is connected to the optical communication base station via wireless optical communication.

3. The multi-format file transfer system based on heterogeneous links according to claim 2, characterized in that, The optical communication base station is equipped with an infrared emitter and an infrared receiver, and the information notification terminal is equipped with an infrared emitter and an infrared receiver. The infrared emitter of the optical communication base station sends data to the infrared receiver of the information prompt terminal via an infrared carrier wave; the infrared emitter of the information prompt terminal sends data to the infrared receiver of the optical communication base station via an infrared carrier wave.

4. The multi-format file transfer system based on heterogeneous links according to claim 3, characterized in that, The optical communication base station is also equipped with a visible light transmitter and a high-frequency infrared receiver, and the communication terminal is equipped with a visible light receiver and a high-frequency infrared transmitter. The visible light transmitter of the optical communication base station transmits data to the visible light receiver of the communication terminal via visible light; the high-frequency infrared transmitter of the communication terminal transmits data to the high-frequency infrared receiver of the optical communication base station via high-frequency infrared light.

5. The multi-format file transfer system based on heterogeneous links according to claim 4, characterized in that, The infrared emitter, the high-frequency infrared transmitter, and the visible light emitter all include light-emitting diode light sources; The infrared receiver, the high-frequency infrared receiver, and the visible light receiver all include one or more of the following: photodiode, avalanche photodiode, photomultiplier tube, and single-photon avalanche diode.

6. The multi-format file transfer system based on heterogeneous links according to claim 2, characterized in that, The information notification terminal is also equipped with an audio-visual reminder device.

7. The multi-format file transfer system based on heterogeneous links according to claim 2, characterized in that, The transmitting terminal is equipped with one or more of a text encoder, a voice encoder, and an image encoder; correspondingly, the receiving terminal is equipped with one or more of a text decoder, a voice decoder, and an image decoder.

8. The multi-format file transfer system based on heterogeneous links according to claim 2, characterized in that, The communication terminal includes a mobile handheld communication terminal or a fixed communication terminal.

9. The multi-format file transfer system based on heterogeneous links according to claim 1, characterized in that, The at least one optical communication base station is connected to the information transmission management system via a wired transmission link using network cable or power line carrier technology.

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