CN-121985428-A - Multi-terminal synchronous data acquisition and transmission method based on radio frequency communication

CN121985428ACN 121985428 ACN121985428 ACN 121985428ACN-121985428-A

Abstract

The invention discloses a multi-terminal synchronous data acquisition and transmission method based on radio frequency communication, which belongs to the technical field of radio frequency communication and aims to solve the problems of inaccurate channel quality assessment, no differentiation in threshold formulation and low transmission scheduling efficiency; the method comprises the steps of constructing a radio frequency channel multidimensional monitoring index set and a transmission demand feature vector, analyzing correlation, building a self-adaptive weight coefficient library, matching weights after data are collected by a terminal to calculate channel quality comprehensive scores, reporting the scores and the feature vectors by the terminal, dynamically calculating a group reference threshold and a terminal personalized threshold after statistical clustering, comparing standard marks to be transmitted after the terminal is compared, triggering the buffer when the standard marks are not standard, locally temporarily storing and continuously checking and evaluating the buffered data, reporting the standard after standard marks are standard, comprehensively calculating transmission priority by a central node and distributing special time slots by multiple factors, completing transmission by the terminal according to instructions, realizing channel quality personalized assessment and threshold difference adaptation, and improving stability, order and overall efficiency of multi-terminal data transmission.

Inventors

LIN CHUITAO
TAN XIANGPING
LONG BO
FENG HAO
LUO FUWEN

Assignees

湖南华烨智能通信技术股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260305

Claims (9)

1.A multi-terminal synchronous data acquisition and transmission method based on radio frequency communication is characterized by comprising the following steps: The method comprises the steps of constructing a multi-dimensional monitoring index set of a radio frequency channel, constructing a transmission demand feature vector of transmission data, analyzing the correlation coefficient between the transmission demand feature vector and a channel monitoring index, and constructing a self-adaptive weight coefficient library; Reporting channel quality comprehensive scores and transmission demand feature vectors of data to be transmitted to a central node by a terminal, and dynamically calculating standard thresholds of each group and terminal personalized channel quality qualification thresholds by the central node after statistics, clustering and grouping; and thirdly, after triggering a buffer scheduling mechanism, the terminal temporarily stores corresponding data to be transmitted, marks related information, continuously detects the radio frequency channel quality and updates the channel quality comprehensive score of the data, marks the data as a state to be transmitted after reaching standards, reports the state to a central node, calculates all the priority of the data to be transmitted, sorts the data, allocates exclusive transmission time slots, and finishes data transmission according to instructions.
2. The method for acquiring and transmitting multi-terminal synchronous data based on radio frequency communication according to claim 1, wherein in the first step, a radio frequency channel multi-dimensional monitoring index set is constructed, and the specific process of constructing a transmission demand feature vector of transmission data is as follows: Constructing a radio frequency channel multi-dimensional monitoring system, and defining radio frequency channel monitoring indexes, wherein the radio frequency channel multi-dimensional monitoring system comprises packet loss rate, transmission delay, signal to noise ratio and signal strength, and all the monitoring indexes are arranged to form a channel monitoring index set; acquiring historical transmission data of all multiple terminals in a current application scene, and acquiring key parameters of data transmission requirements of single transmission of each terminal; the key parameters of the transmission requirement comprise data emergency degree, data transmission quantity and transmission stability requirement; And extracting key parameters of data transmission requirements aiming at each terminal in the current application scene, and finishing to form a terminal data transmission requirement feature vector.
3. The method for acquiring and transmitting multi-terminal synchronous data based on radio frequency communication according to claim 2, wherein in the first step, the specific process of constructing the adaptive weight coefficient library is as follows: Aiming at each terminal in the current application scene, extracting key parameters of data transmission requirements of the terminal, and after quantization processing, finishing to form a characteristic vector of the data transmission requirements; Classifying the transmission data of the terminals with the same transmission demand characteristic vector into a group to obtain a plurality of transmission demand characteristic vector groups; aiming at each transmission demand feature vector group, taking the historical transmission demand feature vector of each transmission of the terminal in the group as an analysis object, taking the actual performance data of each channel monitoring index in the corresponding historical period as a correlation basis, and calculating the pearson correlation coefficient of each index in the transmission demand feature vector and the channel monitoring index set of the group; Normalization processing is carried out on the correlation coefficients obtained by calculation of all the transmission demand feature vector groups respectively, and self-adaptive weight coefficients of the terminal corresponding to various transmission demand feature vectors on each channel monitoring index are obtained; Summarizing the mapping relation between the terminal data transmission demand feature vectors and the self-adaptive weight coefficients of all terminals to construct a self-adaptive weight coefficient library, and setting the update period to be consistent with the change period of the terminal data transmission demand.
4. The method for acquiring and transmitting multi-terminal synchronous data based on radio frequency communication according to claim 3, wherein in the first step, after the terminal acquires data, the terminal obtains a channel quality comprehensive score by weighting calculation based on the corresponding transmission demand feature vector matching weight coefficient, and the specific process is as follows; Aiming at each terminal in the current application scene, after the terminal completes synchronous data acquisition, generating a current transmission demand feature vector based on the current transmission demand of the terminal, and detecting all monitoring indexes in a channel monitoring index set in real time in a radio frequency channel to obtain original detection values of all monitoring indexes; Carrying out dimensionless normalization processing on the original detection values of all the monitoring indexes to obtain standardized values of all the monitoring indexes; Substituting the transmission demand feature vector corresponding to the data to be transmitted of the terminal into an adaptive weight coefficient library, matching the historical transmission demand feature vector with the maximum similarity through a vector similarity matching algorithm, extracting the adaptive weight coefficient of each corresponding monitoring index, and combining the weighted calculation of the standardized value of each monitoring index to obtain the comprehensive score of the current channel quality of the terminal aiming at the data to be transmitted.
5. The method for synchronously collecting and transmitting multi-terminal data based on radio frequency communication according to claim 4, wherein in the second step, the terminal reports the channel quality comprehensive score and the transmission demand characteristic vector of the data to be transmitted to a central node, and the central node performs the specific processes of statistics and clustering grouping: the terminal reports the channel quality comprehensive score and the transmission demand feature vector corresponding to the data to be transmitted to a central node through a single radio frequency channel; carrying out statistical calculation on channel quality comprehensive scores reported by all terminals in a current application scene to obtain score mean values and variances, and marking the score mean values as channel load values and the variances as channel fluctuation values; And calculating similarity values between every two vectors by adopting a cosine similarity algorithm for the transmission demand feature vectors of the data to be transmitted of all terminals, presetting a similarity threshold value, classifying the data to be transmitted with similarity larger than the threshold value into the same group, and forming a plurality of transmission demand groups.
6. The method for acquiring and transmitting multi-terminal synchronous data based on radio frequency communication according to claim 5, wherein in the second step, the specific process of dynamically calculating each group of reference threshold values and terminal personalized channel quality qualification threshold values is as follows: For each transmission demand group, extracting a standardized mean value of key parameters of transmission demand feature vectors of data to be transmitted in the group, distributing preset weights for the key parameters, and performing multiplication accumulation and operation to obtain group priority weights; combining the channel load value, the channel fluctuation value, the group priority weight and the preset load adjustment coefficient, and calculating to obtain a channel scoring reference threshold value of the transmission demand group; And calculating priority weights according to the standardized mean value of the key parameters of the characteristic vector of the transmission demand and the preset weights for each terminal to-be-transmitted data, calculating the difference coefficient of the weights and the priority weights of the groups, and calculating the channel quality qualification threshold corresponding to the terminal to-be-transmitted data by combining the difference coefficient and the channel grading reference threshold.
7. The method for acquiring and transmitting multi-terminal synchronous data based on radio frequency communication according to claim 6, wherein in the second step, the terminal compares the score with the threshold value, marks to be transmitted when reaching standards, and triggers a buffer scheduling mechanism when not reaching standards, the specific process is as follows: The terminal compares the channel quality comprehensive score corresponding to the data to be transmitted with a channel quality qualification threshold corresponding to the data to be transmitted, which is distributed by the central node; if the channel quality comprehensive score is greater than or equal to the corresponding qualification threshold, judging that the current channel quality can meet the transmission condition of the data to be transmitted, marking the data as a state to be transmitted and entering a time slot allocation stage to be transmitted; if the channel quality comprehensive score is smaller than the corresponding qualification threshold, judging that the current channel quality cannot meet the transmission condition of the data to be transmitted, and immediately triggering a buffer scheduling mechanism for the data to be transmitted by the terminal.
8. The method for synchronously collecting and transmitting multi-terminal data based on radio frequency communication according to claim 7, wherein in the third step, after triggering a buffer scheduling mechanism, the terminal temporarily stores the data to be transmitted and marks related information, continuously detects the radio frequency channel quality and updates the channel quality comprehensive score of the data, and the specific process of marking the data as the state to be transmitted and reporting the data to a central node after reaching standards is as follows: after triggering a buffer scheduling mechanism, the terminal performs local classified temporary storage according to key parameters of the transmission demand feature vector corresponding to the data to be transmitted, and marks the buffer starting time and the transmission demand priority weight; Continuously detecting the radio frequency channel quality, sequentially completing channel monitoring index acquisition, original detection value dimensionless normalization processing, matching corresponding self-adaptive weight coefficient, weighting and calculating channel quality comprehensive score, continuously updating the channel quality comprehensive score of the data, marking the data as a state to be transmitted when the score of the data is larger than or equal to a corresponding channel quality qualification threshold value, entering a time slot allocation stage to be transmitted, and synchronously reporting buffer data state to be transmitted, which contains terminal identification, data identification to be transmitted, transmission demand priority weight and buffer starting time, to a central node.
9. The method for synchronously collecting and transmitting data by multiple terminals based on radio frequency communication according to claim 8, wherein in the third step, the center node calculates all data priority levels to be transmitted and sorts, allocates dedicated transmission time slots, and the specific process of the terminals completing data transmission according to instructions is as follows: for the transmission data of each state to be transmitted, combining the channel quality comprehensive score, the transmission demand priority weight, the actual buffer time length, the preset buffer time length upper limit and the preset weight coefficient, and calculating to obtain the data transmission scheduling priority; The central node collects all data to be transmitted entering a time slot allocation stage to be transmitted, and generates a data transmission scheduling priority sequence according to the high-to-low ordering of transmission scheduling priorities; Allocating exclusive transmission time slots which are not overlapped with each other for each piece of data to be transmitted based on the data transmission scheduling priority sequence, and issuing a time slot allocation instruction to the corresponding radio frequency communication terminal; and after receiving the instruction, the terminal stores the time slot parameters, and when the system time reaches the starting moment of the dedicated transmission time slot, the terminal completes the transmission of the corresponding data to be transmitted through the radio frequency channel.

Description

Multi-terminal synchronous data acquisition and transmission method based on radio frequency communication Technical Field The invention belongs to the technical field of radio frequency communication, and particularly relates to a multi-terminal synchronous data acquisition and transmission method based on radio frequency communication. Background The application of radio frequency communication multi-terminal synchronous data acquisition and transmission is wide, but the prior art still has the defects of inaccurate assessment, non-differentiated threshold value, low scheduling efficiency and the like on the design of channel quality assessment, threshold value formulation and transmission scheduling, and is difficult to adapt to the personalized transmission requirements of the multi-terminal, so the following technical problems are needed to be solved: The channel quality evaluation adopts single weight, is not combined with the differential adaptation of different transmission demands of the terminal, and is not matched with the actual transmission demands in the grading, so that the lack of scientificity is judged; The channel quality is judged to be a global unified threshold value, the overall load of the channel and the personalized data requirement are not considered, and the threshold value formulation has no flexibility and pertinence; The multi-terminal transmission has no comprehensive scheduling mechanism, is easy to cause channel conflict, has no reasonable cache rechecking on low-quality channel data, and has low transmission stability and efficiency, so we propose a multi-terminal synchronous data acquisition and transmission method based on radio frequency communication. Disclosure of Invention The invention aims to provide a multi-terminal synchronous data acquisition and transmission method based on radio frequency communication, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme that the multi-terminal synchronous data acquisition and transmission method based on radio frequency communication comprises the following steps: The method comprises the steps of constructing a multi-dimensional monitoring index set of a radio frequency channel, constructing a transmission demand feature vector of transmission data, analyzing the correlation coefficient between the transmission demand feature vector and a channel monitoring index, and constructing a self-adaptive weight coefficient library; Reporting channel quality comprehensive scores and transmission demand feature vectors of data to be transmitted to a central node by a terminal, and dynamically calculating standard thresholds of each group and terminal personalized channel quality qualification thresholds by the central node after statistics, clustering and grouping; and thirdly, after triggering a buffer scheduling mechanism, the terminal temporarily stores corresponding data to be transmitted, marks related information, continuously detects the radio frequency channel quality and updates the channel quality comprehensive score of the data, marks the data as a state to be transmitted after reaching standards, reports the state to a central node, calculates all the priority of the data to be transmitted, sorts the data, allocates exclusive transmission time slots, and finishes data transmission according to instructions. Preferably, in the first step, a radio frequency channel multidimensional monitoring index set is constructed, and a specific process of constructing a transmission demand feature vector of transmission data is as follows: Constructing a radio frequency channel multi-dimensional monitoring system, and defining radio frequency channel monitoring indexes, wherein the radio frequency channel multi-dimensional monitoring system comprises packet loss rate, transmission delay, signal to noise ratio and signal strength, and all the monitoring indexes are arranged to form a channel monitoring index set; acquiring historical transmission data of all multiple terminals in a current application scene, and acquiring key parameters of data transmission requirements of single transmission of each terminal; the key parameters of the transmission requirement comprise data emergency degree, data transmission quantity and transmission stability requirement; And extracting key parameters of data transmission requirements aiming at each terminal in the current application scene, and finishing to form a terminal data transmission requirement feature vector. Preferably, in the first step, the specific process of constructing the adaptive weight coefficient library is as follows: Aiming at each terminal in the current application scene, extracting key parameters of data transmission requirements of the terminal, and after quantization processing, finishing to form a characteristic vector of the data transmission requirements; Classifying the tran