CN-122002594-A - Star flash signal transmission method, device and equipment

Abstract

The invention provides a star flashover signal transmission method, a device and equipment, belongs to the technical field of communication, and solves the problem of poor anti-interference capability of star flashover communication. The method comprises the steps of obtaining original radio frequency signals continuously collected by a star flash module in a plurality of periods in a preset working frequency band, carrying out signal analysis on the original radio frequency signals, extracting a characteristic set of interference signals existing in the preset working frequency band, wherein the characteristic set comprises frequency domain parameters, time domain parameters and power parameters of the interference signals, determining an anti-interference communication strategy for transmitting signals by the star flash module according to the characteristic set, and controlling the star flash module to carry out signal transmission according to the anti-interference communication strategy. The scheme improves the anti-interference capability and the transmission reliability of the star-flash communication in a complex electromagnetic environment.

Inventors

• LI JINGQIN
• WANG ZHIBIN
• ZHOU FENG
• DAI BIN
• LI KEJIA
• LIU NING
• HAN XU
• CHEN GENG
• XIAO FENG
• QI LIMEI
• YU SIYUAN
• YU XINGJIAN
• LIU GUOFU
• DENG HONG
• LIU WEIZHUANG
• REN CHAO
• LU XIAOTONG
• CUI SONG
• ZHENG YUJIE

Assignees

• 中国铁路设计集团有限公司
• 电信科学技术第一研究所有限公司
• 上海载讯智能科技有限公司

Dates

Publication Date

20260508

Application Date

20260410

Claims (9)

1. 1. The star flash signal transmission method is characterized by comprising the following steps: acquiring original radio frequency signals continuously acquired by a star flash module in a plurality of periods within a preset working frequency band; Performing signal analysis on the original radio frequency signals, and extracting a characteristic set of interference signals existing in the preset working frequency band, wherein the characteristic set comprises frequency domain parameters, time domain parameters and power parameters of the interference signals; according to the feature set, determining an anti-interference communication strategy for the star flash module to transmit signals; controlling the star flash module to transmit signals according to the anti-interference communication strategy; according to the feature set, determining an anti-interference communication strategy for transmitting signals by the star flash module comprises the following steps: According to the following: Determining a target frequency band; Wherein, the The target frequency band; Is a preset working frequency band; For the set of union operators, Is a set difference operator; Is a frequency domain parameter of the interference signal; and determining an anti-interference communication strategy for the star flash module to transmit signals according to the target frequency band.
2. 2. The star-flash signal transmission method according to claim 1, wherein obtaining the original radio frequency signals continuously collected by the star-flash module in a plurality of periods within a preset working frequency band comprises: And controlling the star flash module to receive signals in the preset working frequency band according to preset acquisition period parameters to obtain an original radio frequency signal.
3. 3. The star flash signal transmission method according to claim 1, wherein the signal analysis is performed on the original radio frequency signal, and extracting a feature set of an interference signal existing in the preset working frequency band includes: Performing spectrum analysis on the original radio frequency signal to determine the center frequency and bandwidth of an interference signal; obtaining frequency domain parameters of the interference signal according to the central frequency and the bandwidth of the interference signal; Performing time domain envelope analysis on the original radio frequency signal, and determining the starting time, the ending time and the period of the interference signal; Obtaining time domain parameters of the interference signals according to the starting time, the ending time and the period of the interference signals; Performing power measurement on the original radio frequency signals, and determining power parameters of interference signals in a preset working frequency band; According to the frequency domain parameter, the time domain parameter and the power parameter, determining a feature set of the interference signal, wherein the feature set is expressed as: ; Wherein, the Is the total number of interference signals; Is a frequency domain parameter of the interference signal; Is a time domain parameter of the interfering signal; the power parameter of the interference signal in the preset working frequency band is obtained.
4. 4. The method for transmitting star signals according to claim 3, wherein determining an anti-interference communication strategy for the star flash module to transmit signals according to the target frequency band comprises: When the target frequency band is an empty set, determining a target time slot set according to time domain parameters and power parameters in the feature set, wherein the interference degree of the target time slot set is lower than a preset threshold; Dividing the preset working frequency band according to preset time length to obtain a plurality of sub-frequency bands; And determining an anti-interference communication strategy according to the target time slot set and the plurality of sub-frequency bands, wherein the anti-interference communication strategy comprises a target transmitting time slot and a target transmitting frequency band.
5. 5. The method of claim 4, wherein determining an anti-interference communication strategy based on the set of target time slots and the plurality of sub-bands comprises: When the target time slot set is an empty set, according to the following steps: Determining an anti-interference communication strategy; Wherein, the , And Is a preset normalized weight factor, and the weight factor is a preset normalized weight factor, Representing a measure or length of the collection, Is a preset emission time window, t is a time variable, For the jth sub-band, For the targeted transmit frequency band, For the transmission time slot of the target, As a function of the slot interference.
6. 6. The method of star flash signaling according to claim 4, wherein determining an anti-interference communication strategy based on the set of target time slots and the plurality of sub-bands further comprises: when the target time slot set is not an empty set, the target time slot set carries out traversal evaluation processing to determine a target transmitting time slot; According to the characteristic set, the plurality of sub-frequency bands and the target transmitting time slot, the method comprises the following steps: Determining weighted frequency domain overlapping interference degrees of a plurality of sub-frequency bands in the target transmitting time slot; Wherein, the To weight the degree of frequency domain overlapping interference, For the jth sub-band, For the transmission time slot of the target, For the overlapping proportion of the frequency bands, To indicate a function, the value is taken to be 1 when the condition is established, otherwise 0, In order to start the moment of the interfering signal, Is the end time of the interference signal; and determining a target transmitting frequency band according to the weighted frequency domain overlapping interference degrees of the plurality of sub-frequency bands, wherein the target transmitting frequency band is the sub-frequency band which enables the weighted frequency domain overlapping interference degrees to obtain the minimum value.
7. 7. The method for transmitting star signals according to claim 4, wherein determining an anti-interference communication strategy for the star flash module to transmit signals according to the target frequency band further comprises: dividing the preset working frequency band according to preset time length when the target frequency band is not in the empty set, so as to obtain a plurality of sub-frequency bands; determining a target transmitting frequency band according to the plurality of sub-frequency bands; Acquiring current time data; determining a target transmitting time slot according to the current time data and the preset delay time data; and determining an anti-interference communication strategy according to the target transmitting frequency band and the target transmitting time slot.
8. 8. A star-signal transmission device, comprising: the acquisition module is used for acquiring original radio frequency signals continuously acquired by the star flash module in a plurality of periods within a preset working frequency band; the processing module is used for carrying out signal analysis on the original radio frequency signals, extracting a characteristic set of interference signals existing in the preset working frequency band, wherein the characteristic set comprises a frequency domain parameter, a time domain parameter and a power parameter of the interference signals; The execution module is used for controlling the star flash module to transmit signals according to the anti-interference communication strategy; according to the feature set, determining an anti-interference communication strategy for transmitting signals by the star flash module comprises the following steps: According to the following: Determining a target frequency band; Wherein, the The target frequency band; Is a preset working frequency band; For the set of union operators, Is a set difference operator; Is a frequency domain parameter of the interference signal; and determining an anti-interference communication strategy for the star flash module to transmit signals according to the target frequency band.
9. 9. A computing device comprising a processor, a memory storing a computer program which, when executed by the processor, performs the method of any one of claims 1 to 7.

Description

Star flash signal transmission method, device and equipment Technical Field The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for transmitting a star flash signal. Background The star-flash technology is used as a new generation of short-distance wireless communication technology, successfully integrates the technical advantages of the traditional Bluetooth and Wi-Fi, and breaks through the aspects of low time delay, high reliability, precise synchronization, multiple concurrency and the like. In order to cope with electromagnetic signal interference commonly existing in practical application environments and ensure communication quality, the existing star flash system commonly adopts a dynamic anti-interference strategy based on channel perception. The core of this strategy is to rapidly evaluate the real-time interference level of each channel by periodic full or partial channel scanning and dynamically switch the communication link to the "clean" channel with the best evaluation. Compared with the traditional fixed frequency point communication or the frequency hopping scheme of the predefined mode, the dynamic channel selection mechanism remarkably improves the preliminary adaptability of the system to time-varying interference, can avoid continuous strong interference in most scenes, and forms the main stream implementation scheme of the current star flashover anti-interference technology. However, with the deep deployment of the star-flash technology in highly reliable and strong real-time scenes such as industrial internet of things and intelligent driving, the electromagnetic environment where the star-flash technology is located is increasingly complex, and interference signals often show dynamic, heterogeneous and overlapped characteristics. The existing dynamic channel selection scheme gradually exposes inherent limitations in practical application, and is mainly characterized by the defects of single analysis dimension and decision depth. In particular, the prior art generally relies on short-time, transient sampling data to make decisions, and such "snapshot" analysis is difficult to capture the periodic, intermittent regularity of the interfering signal in the time domain. Meanwhile, the evaluation index is concentrated on signal intensity or simple duty ratio, and deep extraction and comprehensive analysis of multidimensional features such as interference signal power spectrum distribution, accurate time domain structure and the like are lacked. This results in a system that is prone to erroneous decisions due to insufficient analysis in the face of periodically occurring co-frequency devices or low duty cycle but high intensity impulse interference, or that is unable to identify potential time avoidance opportunities, or that introduces additional overhead and instability factors due to frequent ineffective switching. Disclosure of Invention The invention provides a star flashover signal transmission method, a device and equipment, which solve the problem of poor anti-interference capability of star flashover communication. In order to solve the technical problems, the technical scheme of the invention is as follows: the embodiment of the invention provides a star flash signal transmission method, which comprises the following steps: acquiring original radio frequency signals continuously acquired by a star flash module in a plurality of periods within a preset working frequency band; Performing signal analysis on the original radio frequency signals, and extracting a characteristic set of interference signals existing in the preset working frequency band, wherein the characteristic set comprises frequency domain parameters, time domain parameters and power parameters of the interference signals; according to the feature set, determining an anti-interference communication strategy for the star flash module to transmit signals; controlling the star flash module to transmit signals according to the anti-interference communication strategy; according to the feature set, determining an anti-interference communication strategy for transmitting signals by the star flash module comprises the following steps: According to the following: Determining a target frequency band; Wherein, the The target frequency band; Is a preset working frequency band; For the set of union operators, Is a set difference operator; Is a frequency domain parameter of the interference signal; and determining an anti-interference communication strategy for the star flash module to transmit signals according to the target frequency band. Optionally, acquiring the original radio frequency signals continuously acquired by the star flash module in a plurality of periods within a preset working frequency band includes: And controlling the star flash module to receive signals in the preset working frequency band according to preset acquisition pe