CN110831010B - Multichannel data sending and receiving method and device and data transmission system - Google Patents
Multichannel data sending and receiving method and device and data transmission system Download PDFInfo
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- CN110831010B CN110831010B CN201911001525.6A CN201911001525A CN110831010B CN 110831010 B CN110831010 B CN 110831010B CN 201911001525 A CN201911001525 A CN 201911001525A CN 110831010 B CN110831010 B CN 110831010B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012795 verification Methods 0.000 claims description 38
- 238000012790 confirmation Methods 0.000 claims description 34
- 238000013524 data verification Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
- H04W12/106—Packet or message integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
Abstract
The invention relates to a multichannel data transmitting and receiving method and device and a data transmission system, wherein the multichannel data transmitting method comprises the following steps: handshake authentication is completed with the receiving end; when the data to be transmitted accords with a preset data format, a corresponding channel is allocated for the data to be transmitted; and sending the data to be transmitted to the receiving end through the distributed channel. According to the invention, each piece of data to be transmitted is transmitted through the allocated corresponding channel, so that the parallel transmission of multiple channels can be realized, the transmission process is not interfered with each other, the occurrence of congestion when the transmitted data is more can be avoided, the transmission speed is greatly improved, and the requirement of the whole Internet of things system on the transmission efficiency is met.
Description
Technical Field
The present invention relates to the field of data transmission, and in particular, to a method and apparatus for transmitting and receiving multichannel data, and a data transmission system.
Background
When the current short-distance wireless transmission device is used for transmitting data, the data is transmitted only through one channel, congestion is easy to occur when more data need to be transmitted, the transmission speed is relatively low, high-speed transmission cannot be performed, and the requirement of the whole Internet of things system on transmission efficiency cannot be met.
Disclosure of Invention
The invention provides a multi-channel data sending and receiving method and device and a data transmission system aiming at the technical problems.
The technical scheme for solving the technical problems is as follows: a multi-channel data transmission method, comprising:
handshake authentication is completed with the receiving end;
when the data to be transmitted accords with a preset data format, a corresponding channel is allocated for the data to be transmitted;
and sending the data to be transmitted to the receiving end through the distributed channel.
The beneficial effects of the invention are as follows: through sending each piece of data to be transmitted through the allocated corresponding channel, the parallel transmission of multiple channels can be realized, the transmission process is not interfered with each other, the occurrence of congestion when the transmitted data are more can be avoided, the transmission speed is greatly improved, and the requirement of the whole Internet of things system on the transmission efficiency is met.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the method further comprises:
when the data to be transmitted does not accord with a preset data format, converting the data to be transmitted into the preset data format and cutting the data into m sections, wherein m is a positive integer;
allocating a corresponding channel for each piece of data;
and transmitting each piece of data to the receiving end through the distributed channel.
Further, the allocating a corresponding channel for each piece of data to be transmitted specifically includes:
taking the remainder of n for each piece of data to be transmitted, and allocating channels with the same channel numbers as the last digit of the remainder corresponding to the piece of data to be transmitted for each piece of data to be transmitted, wherein n is the number of channels;
the allocating a corresponding channel for each piece of data specifically comprises the following steps:
and taking the remainder of n for each piece of data, and allocating a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data.
Further, the method further comprises:
when the data to be transmitted accords with a preset data format, carrying out hash operation on each piece of data to be transmitted, and sending the calculated hash value to the receiving end as verification information of the piece of data;
when the data to be transmitted does not accord with the preset data format, carrying out hash operation on each piece of data obtained by cutting, and sending the hash value obtained by calculation to the receiving end as verification information of the piece of data;
receiving confirmation information returned by the receiving end according to the received data and the corresponding check information;
and deleting the data if the confirmation information is that the data received by the confirmation receiving end is correct, otherwise retransmitting the data.
The further scheme has the advantage that the correct integrity of the transmitted data can be ensured through verification.
In order to achieve the above object, the present invention further provides a multi-channel data receiving method, including:
handshake authentication is completed with the transmitting end;
and receiving the data sent by the sending end, wherein a channel for receiving the data corresponds to a channel for sending the data by the sending end.
The beneficial effects of the invention are as follows: the data is received through the channel corresponding to the channel of the data sent by the sending end, so that the parallel transmission of multiple channels can be realized, the transmission process is not interfered with each other, the congestion can be avoided when the transmitted data is more, the transmission speed is greatly improved, and the requirement of the whole Internet of things system on the transmission efficiency is met.
Further, the method further comprises:
receiving verification information of data sent by the sending end, wherein the verification information comprises a hash value obtained by the sending end through hash operation on each piece of data to be transmitted;
carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the check information, if the hash value is consistent with the hash value contained in the check information, generating acknowledgement information for confirming that the received data is correct, otherwise, generating acknowledgement information for confirming that the received data is wrong;
and sending the confirmation information to the sending end.
The further scheme has the advantage that the correct integrity of the received data can be ensured through verification.
The invention also provides a multichannel data transmitting device, which comprises:
the first handshake authentication device is used for completing handshake authentication with the receiving end;
the first channel allocation device is used for allocating corresponding channels for the data to be transmitted when the data to be transmitted accords with a preset data format;
and the first data sending device sends the data to be transmitted to the receiving end through the distributed channel.
Further, the apparatus further comprises:
the data cutting device is used for converting the data to be transmitted into a preset data format and cutting the data into m sections when the data to be transmitted does not accord with the preset data format, wherein m is a positive integer;
the second channel allocation device is used for allocating corresponding channels for each piece of data;
and the second data transmitting device is used for transmitting each piece of data to the receiving end through the allocated channel.
Further, the first channel distribution device is specifically configured to:
taking the remainder of n for each piece of data to be transmitted, and allocating channels with the same channel numbers as the last digit of the remainder corresponding to the piece of data to be transmitted for each piece of data to be transmitted, wherein n is the number of channels;
the second channel distribution device is specifically configured to:
and taking the remainder of n for each piece of data, and allocating a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data.
Further, the apparatus further comprises:
the first data verification device is used for carrying out hash operation on each piece of data to be transmitted when the data to be transmitted accords with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the second data verification device is used for carrying out hash operation on each piece of data obtained by cutting when the data to be transmitted does not accord with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the data confirmation device is used for receiving confirmation information returned by the receiving end according to the received data and the corresponding verification information;
and the deleting and retransmitting device is used for deleting the data if the confirmation information is that the data received by the receiving end is correct, otherwise retransmitting the data.
The invention also provides a multichannel data receiving device, which comprises:
the second handshake authentication device is used for completing handshake authentication with the sending end;
and the data receiving device is used for receiving the data sent by the sending end, wherein a channel for receiving the data corresponds to the channel for sending the data by the sending end.
Further, the apparatus further comprises:
the information receiving device is used for receiving the verification information of the data sent by the sending end, and the verification information comprises a hash value obtained by the hash operation of each piece of data to be transmitted by the sending end;
the data comparison device is used for carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the verification information, generating confirmation information for confirming the correctness of the received data if the calculated hash value is consistent with the hash value contained in the verification information, and generating confirmation information for confirming the errors of the received data if the calculated hash value is not consistent with the hash value contained in the verification information;
and the information sending device is used for sending the confirmation information to the sending end.
The invention also provides a multichannel data transmission system which comprises the multichannel data transmitting device and the multichannel data receiving device.
Drawings
Fig. 1 is a flowchart of a multi-channel data transmission method according to an embodiment of the present invention;
fig. 2 is a flowchart of a multi-channel data receiving method according to an embodiment of the present invention;
fig. 3 is a block diagram of a radio frequency signal transmitting or receiving device according to an embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Fig. 1 is a flowchart of a multi-channel data transmission method according to an embodiment of the present invention, where, as shown in fig. 1, the method includes:
11. handshake authentication is completed with the receiving end;
specifically, the sending end sends a handshake data packet to the receiving end, the receiving end feeds back handshake data to the sending end, the sending end can finish handshake authentication after receiving a reply, and handshake information comprises equipment ID, data information, protocol information, channel information and the like.
12. When the data to be transmitted accords with a preset data format, a corresponding channel is allocated for the data to be transmitted;
specifically, for the data to be transmitted, which accords with the preset data format, channels can be directly allocated, and the specific channel allocation method in the step can be realized by adopting a plurality of methods, for example, a redundancy taking method is adopted, and the specific process is as follows: and taking the remainder of n for each piece of data to be transmitted, and allocating channels with the channel numbers identical to the last digit of the remainder corresponding to the piece of data to be transmitted for each piece of data to be transmitted, wherein n is the number of channels.
For example, the data transmitted back by the sensor may be 12345;122, a step of; 333;4342; the 4532 digital data includes parameters such as ID, sensor SN, temperature, humidity, etc., the specific content is determined by the protocol, when channel allocation is performed, assuming that there are 10 transmission channels, the ID therein can be used to take the remainder of 10, and the remainder is used as its label, and then the last digit of the remainder is transmitted by the channels with several numbers.
13. And sending the data to be transmitted to the receiving end through the distributed channel.
In the embodiment, each piece of data to be transmitted is sent through the allocated corresponding channel, so that multichannel parallel transmission can be realized, the transmission process is not interfered with each other, congestion can be avoided when more data are transmitted, the transmission speed is greatly improved, and the requirement of the whole Internet of things system on transmission efficiency is met.
Optionally, in this embodiment, the method further comprises:
14. when the data to be transmitted does not accord with a preset data format, converting the data to be transmitted into the preset data format and cutting the data into m sections, wherein m is a positive integer;
specifically, for the data to be transmitted, which does not conform to the preset data format, a proper protocol is selected to divide the data to be transmitted, and then channels are allocated to each piece of data obtained by division. For example, for non-digital data or larger data, such as a video, an article, etc., a RLZ (Relative Lempel Ziv) algorithm may be selected to convert the data into a number pair, and the number in the number pair is used as a basis for taking the remainder.
15. Allocating a corresponding channel for each piece of data;
16. and transmitting each piece of data to the receiving end through the distributed channel.
In step 15, the allocating a corresponding channel for each piece of data specifically includes:
and taking the remainder of m for each piece of data, and allocating a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data.
In this embodiment, for the data to be transmitted which does not conform to the preset data format, format conversion and cutting are performed first, and then the corresponding channels are reassigned for transmission, so that the data transmission method can adapt to the transmission requirements of data with multiple data formats.
Optionally, in this embodiment, the method further comprises:
17. when the data to be transmitted accords with a preset data format, carrying out hash operation on each piece of data to be transmitted, and sending the calculated hash value to the receiving end as verification information of the piece of data;
18. when the data to be transmitted does not accord with the preset data format, carrying out hash operation on each piece of data obtained by cutting, and sending the hash value obtained by calculation to the receiving end as verification information of the piece of data;
19. receiving confirmation information returned by the receiving end according to the received data and the corresponding check information;
20. and deleting the data if the confirmation information is that the data received by the confirmation receiving end is correct, otherwise retransmitting the data.
In this embodiment, the correct integrity of the transmitted data can be ensured by the data verification process described above. After receiving the confirmation information, the transmitting end considers that the segment of data is successfully transmitted, the segment of data can be deleted, and the deleted information is not transmitted again. If the data is not received for a certain period of time, the data is sent again, the waiting time can be determined by a user, and the longer the waiting time is, the higher the data reliability is, and the more system resources are occupied. And if the repeated transmission exceeds the set time or the acknowledgement information is not received, the transmission of the information is abandoned, and error information is reported to an upper application program.
Corresponding to the method for sending multi-channel data provided in the foregoing embodiment, an embodiment of the present invention provides a method for receiving multi-channel data, as shown in fig. 2, where the method includes:
21. handshake authentication is completed with the transmitting end;
the specific authentication process is described in the foregoing, and will not be described in detail herein.
22. And receiving the data sent by the sending end, wherein a channel for receiving the data corresponds to a channel for sending the data by the sending end.
In the embodiment, the data is received through the channel corresponding to the channel of the data sent by the sending end, so that the parallel transmission of multiple channels can be realized, the transmission process is not interfered with each other, the congestion can be avoided when the transmitted data is more, the transmission speed is greatly improved, and the requirement of the whole Internet of things system on the transmission efficiency is met.
Optionally, in this embodiment, the method further comprises:
23. receiving verification information of data sent by the sending end, wherein the verification information comprises a hash value obtained by the sending end through hash operation on each piece of data to be transmitted;
24. carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the check information, if the hash value is consistent with the hash value contained in the check information, generating acknowledgement information for confirming that the received data is correct, otherwise, generating acknowledgement information for confirming that the received data is wrong;
25. and sending the confirmation information to the sending end.
In this embodiment, the correct integrity of the received data can be ensured by the data verification process described above.
The embodiment of the invention provides a multichannel data transmitting device, which comprises:
the first handshake authentication device is used for completing handshake authentication with the receiving end;
the first channel allocation device is used for allocating corresponding channels for the data to be transmitted when the data to be transmitted accords with a preset data format;
and the first data sending device sends the data to be transmitted to the receiving end through the distributed channel.
Optionally, in this embodiment, the apparatus further comprises:
the data cutting device is used for converting the data to be transmitted into a preset data format and cutting the data into m sections when the data to be transmitted does not accord with the preset data format, wherein m is a positive integer;
the second channel allocation device is used for allocating corresponding channels for each piece of data;
and the second data transmitting device is used for transmitting each piece of data to the receiving end through the allocated channel.
Optionally, in this embodiment, the first channel distribution device is specifically configured to:
taking the remainder of n for each piece of data to be transmitted, and allocating channels with the same channel numbers as the last digit of the remainder corresponding to the piece of data to be transmitted for each piece of data to be transmitted, wherein n is the number of channels;
the second channel distribution device is specifically configured to:
and taking the remainder of m for each piece of data, and allocating a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data.
Optionally, in this embodiment, the apparatus further comprises:
the first data verification device is used for carrying out hash operation on each piece of data to be transmitted when the data to be transmitted accords with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the second data verification device is used for carrying out hash operation on each piece of data obtained by cutting when the data to be transmitted does not accord with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the data confirmation device is used for receiving confirmation information returned by the receiving end according to the received data and the corresponding verification information;
and the deleting and retransmitting device is used for deleting the data if the confirmation information is that the data received by the receiving end is correct, otherwise retransmitting the data.
The embodiment of the invention provides a multichannel data receiving device, which comprises:
the second handshake authentication device is used for completing handshake authentication with the sending end;
and the data receiving device is used for receiving the data sent by the sending end, wherein a channel for receiving the data corresponds to the channel for sending the data by the sending end.
Optionally, in this embodiment, the apparatus further comprises:
the information receiving device is used for receiving the verification information of the data sent by the sending end, and the verification information comprises a hash value obtained by the hash operation of each piece of data to be transmitted by the sending end;
the data comparison device is used for carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the verification information, generating confirmation information for confirming the correctness of the received data if the calculated hash value is consistent with the hash value contained in the verification information, and generating confirmation information for confirming the errors of the received data if the calculated hash value is not consistent with the hash value contained in the verification information;
and the information sending device is used for sending the confirmation information to the sending end.
The embodiment of the invention provides a multichannel data transmission system, which comprises the multichannel data transmitting device and the multichannel data receiving device.
The method for transmitting and receiving multi-channel data provided in the foregoing embodiments of the present invention may be implemented by a radio frequency signal transmitting or receiving device, as shown in fig. 3, where the device includes a first processor (i.e., a high performance processor in the drawing), a memory, n second processors (i.e., high performance processors in the drawing), n+1 radio frequency chips, an antenna combiner, and a broadband antenna, where the first processor is connected to 1 radio frequency chip (No. 0) and the memory, the memory is connected to n second processors, the n second processors are connected to other n radio frequency chips (No. 1 to n) one-to-one, and all radio frequency chips are connected to the broadband antenna through the antenna combiner.
The processor and the radio frequency chip can be selected from existing mainstream chips, such as STM chips of ARM architecture, homemade Loongson chips and the like.
The operation principle of the device is as follows:
handshaking procedure: the first processor of the transmitting end firstly transmits a handshake data packet through the No. 0 radio frequency chip, the No. 0 radio frequency chip of the receiving end receives the handshake data packet and transmits the data to the first processor for processing, and the handshake data packet is fed back to the transmitting end. The sending end receives the reply and completes handshake authentication, and the handshake information comprises equipment ID, data information, protocol information, channel information and the like.
The transmission process comprises the following steps: the transmitting end firstly selects a proper protocol for cutting the data according to the type of the data by using the first processor, marks the data to be distributed to different channels in a mode of being favorable for taking the remainder, or obtains the data pairs by using an RLZ mode, and then distributes the data pairs. The cut small piece of data is stored in a memory. The first processor reads small-section data corresponding to the serial numbers from the memory, sends the small-section data to the distributed radio frequency chip, the radio frequency chip encodes the data into radio frequency signals and sends the radio frequency signals to the antenna combiner, and the antenna combiner transmits 1-n signals to the receiving end through the broadband antenna.
The receiving process comprises the following steps: the antenna combiner collects electromagnetic waves through a broadband antenna and then sends signals to the 1-n radio frequency chip through filtering. After the radio frequency chip analyzes the signals into digital signals, the corresponding second processor stores the data in the memory. The first processor reads the fragment data in the memory, and utilizes the corresponding protocol to splice the fragment data into complete data.
And (3) checking a retransmission process: when the transmitting end transmits data, the first processor can transmit check information of each small section of data in real time through the No. 0 radio frequency chip. The receiving end confirms the correctness of the data through the check information and confirms the information to the transmitting end. The transmitting end deletes the data after receiving the correct confirmation information, and if the confirmation is not received or the confirmation is wrong, the retransmission process is started.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. A multi-channel data transmission method, comprising:
handshake authentication is completed with the receiving end;
when the data to be transmitted accords with a preset data format, a corresponding channel is allocated for the data to be transmitted;
the data to be transmitted is sent to the receiving end through an allocated channel;
the method further comprises the steps of:
when the data to be transmitted does not accord with a preset data format, converting the data to be transmitted into the preset data format and cutting the data into m sections, wherein m is a positive integer;
allocating a corresponding channel for each piece of data;
transmitting each piece of data to the receiving end through an allocated channel;
the allocating a corresponding channel for each piece of data to be transmitted specifically includes:
taking the remainder of n for each piece of data to be transmitted, and allocating channels with the same channel numbers as the last digit of the remainder corresponding to the piece of data to be transmitted for each piece of data to be transmitted, wherein n is the number of channels;
the allocating a corresponding channel for each piece of data specifically comprises the following steps:
taking the remainder of n for each piece of data, and distributing a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data;
the method further comprises the steps of:
when the data to be transmitted accords with a preset data format, carrying out hash operation on each piece of data to be transmitted, and sending the calculated hash value to the receiving end as verification information of the piece of data;
when the data to be transmitted does not accord with the preset data format, carrying out hash operation on each piece of data obtained by cutting, and sending the hash value obtained by calculation to the receiving end as verification information of the piece of data;
receiving confirmation information returned by the receiving end according to the received data and the corresponding check information;
and deleting the data if the confirmation information is that the data received by the confirmation receiving end is correct, otherwise retransmitting the data.
2. A multi-channel data reception method, comprising:
handshake authentication is completed with the transmitting end;
receiving data sent by the sending end, wherein a channel for receiving the data corresponds to a channel for sending the data by the sending end;
the method further comprises the steps of:
receiving verification information of data sent by the sending end, wherein the verification information comprises a hash value obtained by the sending end through hash operation on each piece of data to be transmitted;
carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the check information, if the hash value is consistent with the hash value contained in the check information, generating acknowledgement information for confirming that the received data is correct, otherwise, generating acknowledgement information for confirming that the received data is wrong;
and sending the confirmation information to the sending end.
3. A multi-channel data transmission apparatus, comprising:
the first handshake authentication device is used for completing handshake authentication with the receiving end;
the first channel allocation device is used for allocating corresponding channels for the data to be transmitted when the data to be transmitted accords with a preset data format;
the first data sending device sends the data to be transmitted to the receiving end through an allocated channel;
the apparatus further comprises:
the data cutting device is used for converting the data to be transmitted into a preset data format and cutting the data into m sections when the data to be transmitted does not accord with the preset data format, wherein m is a positive integer;
the second channel allocation device is used for allocating corresponding channels for each piece of data;
the second data transmitting device is used for transmitting each piece of data to the receiving end through an allocated channel;
the second channel distribution device is specifically configured to:
taking the remainder of m for each piece of data, and distributing a channel with the same channel number as the last digit of the remainder corresponding to the piece of data for each piece of data;
the apparatus further comprises:
the first data verification device is used for carrying out hash operation on each piece of data to be transmitted when the data to be transmitted accords with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the second data verification device is used for carrying out hash operation on each piece of data obtained by cutting when the data to be transmitted does not accord with a preset data format, and sending the calculated hash value to the receiving end as verification information of the piece of data;
the data confirmation device is used for receiving confirmation information returned by the receiving end according to the received data and the corresponding verification information;
and the deleting and retransmitting device is used for deleting the data if the confirmation information is that the data received by the receiving end is correct, otherwise retransmitting the data.
4. A multi-channel data receiving apparatus, comprising:
the second handshake authentication device is used for completing handshake authentication with the sending end;
the data receiving device is used for receiving the data sent by the sending end, wherein a channel for receiving the data corresponds to a channel for sending the data by the sending end;
the apparatus further comprises:
the information receiving device is used for receiving the verification information of the data sent by the sending end, and the verification information comprises a hash value obtained by the hash operation of each piece of data to be transmitted by the sending end;
the data comparison device is used for carrying out hash operation on the received data, comparing the calculated hash value with the hash value contained in the verification information, generating confirmation information for confirming the correctness of the received data if the calculated hash value is consistent with the hash value contained in the verification information, and generating confirmation information for confirming the errors of the received data if the calculated hash value is not consistent with the hash value contained in the verification information;
and the information sending device is used for sending the confirmation information to the sending end.
5. A multi-channel data transmission system comprising the apparatus of claim 3 and claim 4.
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| CN111405613A (en) * | 2020-05-14 | 2020-07-10 | 安徽新华传媒股份有限公司 | Information transmission system based on positioning system |
| CN111917659A (en) * | 2020-07-23 | 2020-11-10 | 上海聚音信息科技有限公司 | Concurrent data transmission method, system, device and computer readable storage medium |
| CN112822260B (en) * | 2020-12-31 | 2023-06-09 | 北京天融信网络安全技术有限公司 | File transmission method and device, electronic equipment and storage medium |
| CN116701293B (en) * | 2023-07-27 | 2024-03-22 | 深圳市云端未来科技有限公司 | Multi-channel data parallel transmission method and system based on ARM cluster server |
| CN117081708A (en) * | 2023-09-15 | 2023-11-17 | 深圳旷世科技有限公司 | UWB wireless multichannel audio transmission method, system and audio equipment |
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