A clean energy station beidou short message non-blind area data acquisition and transmission system
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
- Filing Date
- 2026-02-02
- Publication Date
- 2026-06-09
Smart Images
Figure CN122178975A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of data acquisition and transmission technology, and in particular relates to a BeiDou short message data acquisition and transmission system with no blind spots for clean energy power stations. Background Technology
[0002] Against the backdrop of the rapid development of the clean energy industry, the large-scale construction of off-grid clean energy power plants (such as offshore wind power and photovoltaic power plants in remote areas) is increasing. Due to their remote locations and insufficient grid coverage, these plants rely on satellite communication technology for data acquisition and transmission. Currently, a common solution involves using a BeiDou short message communication terminal in conjunction with an energy storage power supply system and basic data acquisition equipment to construct a data transmission system. This system mainly consists of a data acquisition module, a communication module, an energy storage module, and a remote monitoring platform. The data acquisition module is responsible for collecting operating parameters and basic environmental data from the power plant equipment. The communication module transmits data to the remote platform via BeiDou short messages. The energy storage module provides off-grid power to the entire terminal equipment. The remote platform receives the data and performs basic processing and display. This system is widely used in various clean energy power plant data transmission scenarios without public grid coverage.
[0003] However, considering the core beneficial effects that this invention aims to achieve, such as blind-spot-free transmission, low-power operation, and wide adaptability, existing technologies have significant shortcomings. First, existing technologies are mostly based on transmission strategies that regulate transmission using a single energy storage capacity or a single environmental parameter, failing to account for complex environmental interference and the energy storage power supply status, making it difficult to achieve blind-spot-free transmission across all scenarios. Second, they lack precise power consumption control mechanisms and do not match differentiated transmission modes for different scenarios, resulting in high energy consumption and inability to meet the energy-saving needs of off-grid sites. Third, they adopt an integrated design rather than a modular architecture, leading to poor interface compatibility; adjusting parameters or adapting to different sites requires system reconstruction, limiting the scope of application. Fourth, they lack targeted coding and anti-interference design, resulting in low efficiency and high error rates in multi-source data transmission, and weak resistance to complex electromagnetic interference, making it unable to support precise operation and maintenance. Fifth, they lack adaptability to complex environments such as salt spray and extreme weather, resulting in short equipment lifespan and increased site operation and maintenance costs. Summary of the Invention
[0004] To overcome the aforementioned shortcomings of existing technologies, this invention provides a BeiDou short message data acquisition and transmission system for clean energy power stations with no blind spots, which solves the problems of single control, high power consumption, narrow compatibility, weak anti-interference, and difficulty in achieving blind-spot-free and precise operation and maintenance in existing technologies.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A clean energy power station BeiDou short message data acquisition and transmission system with no blind spots, the system includes: The state awareness module is used to collect various types of state data; The main control module, connected to the state perception module, generates message transmission control commands based on a preset dual-dimensional control rule of "energy storage SOC range + corrosion / interference level". The BeiDou short message communication module is connected to the main control module. It switches the transmission mode and executes data transmission according to the control command to achieve blind-zone-free communication. The energy storage linkage module is connected to the main control module and the site energy storage system respectively, so as to realize energy storage status feedback and power supply strategy control. The cloud platform communicates with the BeiDou short message communication module via the BeiDou satellite link to achieve data reception and control parameter distribution; The main control module uses the status data collected by the status sensing module to match "energy storage SOC range + corrosion / interference level" and trigger the corresponding transmission mode and data priority rules to achieve a dynamic balance between transmission stability and power consumption.
[0006] Preferably, the status sensing module includes a salt spray corrosion sensing unit, an electromagnetic interference sensing unit, a SOC sensing unit, and an equipment operation sensing unit, with each unit integrated into the same functional module; the multiple types of status data include at least BeiDou antenna salt spray corrosion status data, site electromagnetic interference intensity data, energy storage system SOC data, and wind power equipment operation data; wherein, the salt spray corrosion sensing unit collects the surface corrosion rate, coating damage area, and salt spray concentration of the BeiDou antenna, the electromagnetic interference sensing unit collects the electromagnetic radiation intensity in the 0.1MHz~6GHz frequency band inside the wind turbine nacelle, the SOC sensing unit collects the remaining power, charging and discharging current, and voltage of the energy storage battery, and the equipment operation sensing unit collects the gearbox temperature, main shaft speed, generator power, and nacelle attitude data of the wind power equipment.
[0007] Preferably, before the main control module generates control commands, it needs to perform coupled encoding on multiple types of status data. The coupled encoding adopts a multi-dimensional matrix encoding algorithm, which realizes the synchronous encoding of multiple types of data by allocating different types of data to the row / column dimensions of the matrix. Then, the salt spray corrosion data, electromagnetic interference data, SOC data and equipment operation data are mapped to different encoding dimensions to generate a coupled data packet containing a verification field. The verification field consists of salt spray corrosion degree data and electromagnetic interference intensity data.
[0008] Preferably, the dual-dimensional control rule of "energy storage SOC range + corrosion / interference level" specifically refers to: dividing the energy storage SOC data into three power ranges of high, medium, and low, and dividing the risk level into two levels of high and low based on salt spray corrosion status data and electromagnetic interference intensity data; the transmission mode includes at least normal transmission mode, anti-interference frequency hopping transmission mode, sampling transmission mode, and ultra-low power emergency transmission mode. Different combinations of "power range - risk level" correspond to different transmission modes: when the energy storage SOC > 80% and the risk level is low, the normal transmission mode is triggered, transmitting all equipment operation data and environmental data at a preset frequency; when the energy storage SOC > 80% and the risk level is high, the anti-interference frequency hopping transmission mode is triggered, activating data optimization... Priority rules: When the energy storage SOC is between 50% and 80% and the risk level is low, the sampling transmission mode is triggered, and the core equipment operation data is transmitted at 50% of the original transmission frequency; when the energy storage SOC is between 50% and 80% and the risk level is high, the anti-interference frequency hopping + sampling transmission combination mode is triggered; when the energy storage SOC is < 50%, the ultra-low power emergency transmission mode is triggered, and the terminal enters sleep mode; among them, under the high risk level, priority is given to transmitting antenna corrosion status data and wind power key component operation data, and the transmission of non-core data such as ambient temperature and humidity is temporarily suspended; under the ultra-low power emergency mode, the terminal is only awakened and sent an ultra-concise alarm message when the dual anomalies of "excessive salt spray corrosion + energy storage overcharge / over-discharge" are detected, and the terminal is awakened and the cached data is retransmitted after the energy storage SOC is ≥ 50%.
[0009] Preferably, the BeiDou short message communication module includes a frequency hopping control module; when the risk level is high, the frequency hopping control module switches the communication frequency according to a preset frequency hopping sequence; the frequency hopping sequence is issued by the cloud platform based on the electromagnetic interference spectrum characteristics of the site area.
[0010] Preferably, the cloud platform includes a parameter control module and a data parsing module; the parameter control module adjusts the energy storage SOC range threshold and the salt spray corrosion / electromagnetic interference risk level threshold according to the seasonal characteristics of salt spray in the site area and the changes in the charging and discharging efficiency of the energy storage system, and sends them to the main control module via Beidou short message; the data parsing module decodes the received coupled data packets, separates various status data, and generates a site operation and maintenance report.
[0011] Preferably, the energy storage linkage module includes a low-power management module; when the terminal is in sleep mode, the low-power management module controls the energy storage system to only supply power to the core sensing unit of the status sensing module and the wake-up module of the main control module, with a power supply power ≤10mW; the energy storage status feedback specifically includes SOC data, charging and discharging power and fault status feedback.
[0012] Preferably, it also includes a local cache module; the local cache module encrypts and caches device operation data and abnormal alarm data when the terminal is in sleep mode or communication is interrupted; the local cache module has a cache capacity of ≥16GB and a cache data retention time of ≥72 hours.
[0013] Preferably, the key wind power components include a gearbox, main shaft, generator, and pitch system, and their operating data include at least gearbox lubricating oil temperature, main shaft vibration frequency, generator stator temperature, and pitch angle; the ultra-concise alarm message consists of corrosion exceeding alarm information and equipment fault codes, and the message length is compressed by more than 60% compared to the full data.
[0014] Preferably, the blind-zone-free transmission is achieved through anti-interference frequency hopping, sleep-wake-up retransmission, and local caching; in scenarios with high salt spray, strong electromagnetic interference, and low energy storage capacity, the data transmission success rate is ≥99.5%.
[0015] The technical effects and advantages of the BeiDou short message data acquisition and transmission system with no blind spots for clean energy power stations according to the present invention are as follows: 1. This invention collects key environmental data such as salt spray corrosion and electromagnetic interference through a state perception module, and constructs a two-dimensional control rule by combining energy storage SOC data. This drives the Beidou short message communication module to dynamically switch transmission modes. With the help of anti-interference frequency hopping design and local caching and sleep wake-up retransmission mechanism, it can effectively avoid transmission interruption problems in scenarios such as salt spray corrosion, strong electromagnetic interference and insufficient energy storage power supply. It completely solves the pain point of poor transmission stability in the traditional single control mode and ensures data transmission without blind spots in all scenarios.
[0016] 2. This invention relies on dual-dimensional control rules to match the corresponding transmission mode and data priority according to the energy storage capacity range and environmental risk level. In low power or low risk scenarios, power consumption is controlled by sampling transmission and simplified messages. Combined with the low power management function of the energy storage linkage module, it can minimize terminal energy consumption while ensuring the priority transmission of core data. It adapts to the energy-saving needs of off-grid site energy storage power supply and reduces the power consumption cost in operation and maintenance.
[0017] 3. This invention adopts a modular design of state perception, main control, Beidou communication, energy storage linkage and cloud platform. Each module has independent functions and compatible interfaces. It can be easily adapted by adjusting the parameters of the sensing unit and optimizing the control threshold. It is suitable for various clean energy stations with salt spray corrosion environment and off-grid energy storage power supply characteristics. There is no need to reconstruct the system for different scenarios, which significantly improves the versatility and adaptability of the technical solution.
[0018] 4. The multi-dimensional matrix coupling encoding technology of the main control module of this invention can realize the synchronous encoding and transmission of multiple types of status data. Combined with the design of the verification field containing environmental feature parameters, it can not only improve the efficiency of multi-source data transmission, but also reduce the error rate in the data transmission process. The dynamic control function of the cloud platform can optimize the control threshold in real time according to the changes in the site environment. The data parsing module can accurately separate various types of data and generate operation and maintenance reports, providing accurate data support for site operation and maintenance and reducing the difficulty of operation and maintenance.
[0019] 5. The frequency hopping control design of the Beidou short message communication module of this invention can dynamically switch the communication frequency according to the characteristics of environmental electromagnetic interference, effectively resisting the interference of complex electromagnetic environment; the integrated design of the status perception module and the functional adaptation of each module enable the system to stably cope with complex environments such as high salt spray and extreme weather, extend the overall service life of the system, and reduce the cost of equipment replacement and maintenance. Attached Figure Description
[0020] Figure 1 This is a flowchart of a clean energy power station BeiDou short message data acquisition and transmission system with no blind spots, as proposed in this invention. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include," "contain," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "includes..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] refer to Figure 1This invention discloses a BeiDou short message data acquisition and transmission system for clean energy power plants with no blind spots, suitable for clean energy power plants with salt spray corrosion environment and off-grid energy storage power supply characteristics. The system includes a status perception module, a main control module, a BeiDou short message communication module, an energy storage linkage module, and a cloud platform, and can also add a local cache module. The status perception module collects data such as salt spray corrosion status, electromagnetic interference intensity, energy storage SOC, and equipment operation and transmits it to the main control module. The energy storage linkage module synchronously feeds back the energy storage status. The main control module generates transmission control commands after coupling and encoding the data based on a preset dual-dimensional control rule of "energy storage SOC range + corrosion / interference level". The BeiDou short message communication module switches the transmission mode according to the command, achieves anti-interference transmission through frequency hopping control, and completes data interaction and control parameter reception with the cloud platform. The energy storage linkage module performs low-power power supply control, and the local cache module ensures data integrity when communication is interrupted, ultimately achieving full-scenario no-blind-spot data transmission, accurately balancing transmission stability and system power consumption, and adapting to the long-term stable operation of power plants in complex environments. Example 1
[0024] Objective: To provide a complete solution adapted to conventional salt spray and moderate electromagnetic interference scenarios, enabling data transmission without blind spots in off-grid integrated offshore wind power and energy storage stations, while balancing transmission stability and equipment power consumption, and providing a basic reference for subsequent optimization solutions.
[0025] Implementation System: An off-grid integrated offshore wind power and energy storage station adapted to a single 5MW wind turbine and equipped with a 10MWh lithium battery energy storage system; the core of the system consists of a status awareness module, a main control module, a Beidou short message communication module, an energy storage linkage module, a cloud platform, and a local cache module, with the specific configuration as follows: (1) Status sensing module: integrates salt spray corrosion sensing unit, electromagnetic interference sensing unit, SOC sensing unit and equipment operation sensing unit into the same functional module (size 200mm×150mm×80mm); the salt spray corrosion sensing unit adopts the electrochemical corrosion detection principle, with a detection accuracy of 0.01mm / year (corrosion rate) and 1mm² (coating damage area), and a salt spray concentration measurement range of 0-20mg / m³; the electromagnetic interference sensing unit covers the 0.1MHz~6GHz frequency band, with a measurement accuracy of 0.1dBm; the SOC sensing unit has an acquisition error of ±1% (remaining power), 0-500A (charging and discharging current), and 500-800V (voltage); the equipment operation sensing unit covers -40~150℃ (gearbox temperature), 0-20rpm (spindle speed), 0-5MW (generator power) and -10°~10° (nacelle pitch angle).
[0026] (2) Main control module: It adopts ARM Cortex-A9 processor (1GHz) and presets "energy storage SOC range + corrosion / interference level" dual-dimensional control rules; it has a built-in 3×4 matrix encoding algorithm (row dimension is data type, column dimension is data time sequence) and can generate 1024 bytes of coupled data packets (the verification field is composed of corrosion rate and electromagnetic interference intensity weighted, with weights of 60% and 40% respectively).
[0027] (3) Beidou short message communication module: Beidou-2 / 3 dual-mode configuration, including frequency hopping control module; 16 pseudo-random code generation frequency points are preset, and the frequency hopping rate is 1000 hops / second.
[0028] (4) Energy storage linkage module: integrates a low-power management module (DC / DC step-down circuit), connects the main control module and the energy storage system BMS, and has a sleep power supply power ≤10mW.
[0029] (5) Cloud platform: Deployed at the shore-based monitoring center, using a 4-core 8G Alibaba Cloud server, supporting 100 terminals to access concurrently, including parameter control and data parsing modules.
[0030] (6) Local cache module: NAND Flash chip, capacity 16GB, supports AES-256 encryption, data retention time 72 hours.
[0031] Implementation steps: Step 1: System initialization, each module completes self-test and starts up; the status sensing module collects salt spray corrosion, electromagnetic interference, SOC and equipment operation data at a frequency of 1 second / time.
[0032] Step 2: The main control module receives the collected data and performs coupled encoding using a 3×4 matrix encoding algorithm to generate a coupled data packet containing a check field.
[0033] Step 3: The main control module generates transmission control commands based on preset dual-dimensional rules (SOC > 80% is high power, 50% ≤ SOC ≤ 80% is medium power, SOC < 50% is low power; corrosion rate > 0.1 mm / year or interference intensity > 80 dBm is high risk) and matches the current data.
[0034] Step 4: The BeiDou short message communication module receives the instruction, switches to the corresponding transmission mode (normal / frequency hopping / sampling / emergency), and transmits the data to the cloud platform through the BeiDou satellite link.
[0035] Step 5: The cloud platform parses the coupled data packet, and the parameter control module dynamically adjusts the threshold based on the seasonal characteristics of salt spray (the high-risk threshold for corrosion in summer is adjusted to 0.08 mm / year), generating an operation and maintenance report.
[0036] Step 6: The energy storage linkage module provides real-time feedback on the energy storage status, and the low-power management module adjusts the power supply when the terminal is in sleep mode; the local cache module caches key data during sleep or communication interruption, and retransmits it after conditions are restored.
[0037] Implementation results: Under normal scenarios with salt spray concentration of 5-10 mg / m³ and electromagnetic interference intensity of 60-80 dBm, the data transmission success rate reached 99.6%; the average daily power consumption of the terminal was only 0.5 kWh, which is 60% lower than the traditional solution; the entire system operated stably for more than 1,000 hours without any data disconnection. Example 2
[0038] Objective: To address the issue of low encoding and transmission efficiency caused by the surge in data volume in multi-wind turbine cluster scenarios, optimize the compatibility and accuracy of coupled encoding algorithms, and adapt to the needs of synchronous transmission of multi-source data.
[0039] Implementation System: Based on the system architecture of Example 1, this is an off-grid offshore wind power and energy storage integrated power station adapted to a cluster of three 5MW wind turbines and a 20MWh energy storage system; the core optimization points are: (1) The main control module is upgraded to an ARM Cortex-A53 processor (1.2GHz), with a built-in 4×8 matrix encoding algorithm (row dimension is device number, column dimension is data type + time sequence), and integrated LZ77 data compression algorithm; the verification field adds CRC32 data integrity verification code (corrosion rate + interference intensity + verification code weight ratio of 40%, 30%, 30%).
[0040] (2) The Beidou short message communication module optimizes the data packet transmission caching mechanism to support the segmented transmission and reassembly of data packets with a maximum size of 2048 bytes.
[0041] Implementation steps: Step 1: System initialization. The status sensing module collects data by equipment number (wind turbines 1-3 + energy storage system), with a collection frequency of 1 second / time.
[0042] Step 2: The main control module receives multi-source data, classifies and encodes it using a 4×8 matrix encoding algorithm, and then compresses the data using the LZ77 algorithm.
[0043] Step 3: Generate a coupled data packet (800 bytes in length after compression) containing a combined check field, verify the data integrity using the check code, and re-encode if the check fails.
[0044] Step 4: The Beidou short message communication module receives the master control command and transmits data packets to the cloud platform in segments according to the device number sequence.
[0045] Step 5: When the cloud platform parses the data packets, it first verifies the integrity using a CRC32 checksum, then splits the data from different devices and generates a cluster operation and maintenance report.
[0046] Implementation Results: The efficiency of multi-device data synchronization encoding and transmission was improved by 30% compared to Example 1; when the data volume increased by 2 times, the message transmission time only increased by 15%; and the data error rate was reduced to 10⁻ 6 The following is an order of magnitude smaller than Example 1; it fully adapts to the multi-source data transmission requirements of a cluster of 3 wind turbines. Example 3
[0047] Objective: To optimize ultra-low power consumption control strategies and sleep / wake-up mechanisms for scenarios with frequent overcast and rainy days in low latitudes and insufficient energy storage and charging, thereby extending the battery life of terminals when the battery is low and avoiding data disconnection due to power outages.
[0048] Implementation System: Based on the system architecture of Example 1, this system is adapted to an off-grid offshore wind power and energy storage integrated power station (deployed in the rainy coastal areas of South China) with a single 5MW wind turbine and a matching 10MWh energy storage system; the core optimization points are: (1) The main control module adjusts the dual-dimensional control rules: the low power threshold is lowered to SOC < 40%, and a new "power prediction model" (based on historical SOC data + wind speed prediction data) is added.
[0049] (2) The energy storage linkage module is upgraded to a low-power management module, which supports selective power-off during hibernation (only retaining the corrosion sensing core channel and the power supply of the wake-up module), and the power supply power is reduced to 5mW; a new power prediction interface is added to connect to the prediction data of the main control module.
[0050] (3) The local cache module optimizes the data caching strategy, prioritizing the caching of fault data and core operating data.
[0051] Implementation steps: Step 1: After the system starts up, the SOC sensing unit collects historical charging and discharging data, combines it with regional wind speed prediction data sent from the cloud, and uses the power prediction model to predict the SOC status 3 hours later.
[0052] Step 2: If it is predicted that the SOC will drop below 40%, the main control module will trigger the sampling transmission mode in advance to reduce the data transmission frequency.
[0053] Step 3: When SOC < 40%, the terminal enters ultra-low power emergency mode, only retaining the salt spray corrosion sensing core channel and the main control wake-up module to work, while the other units are powered off; adopting the "24-hour timed wake-up + dual abnormal trigger wake-up" mechanism (dual abnormality: corrosion rate > 0.2 mm / year + energy storage overcharge / over-discharge).
[0054] Step 4: After waking up, prioritize transmitting cached fault data, and then transmit regular data as needed; after receiving the data, the cloud platform issues targeted power control suggestions.
[0055] Step 5: When SOC≥40%, the terminal resumes normal working mode and retransmits the non-faulty data cached during hibernation.
[0056] Implementation results: The terminal's low battery life was extended from 72 hours in Example 1 to 120 hours; the delay in dual abnormal data transmission was ≤10 seconds; even if there was no charging for 72 consecutive hours, the stable transmission of fault data could still be guaranteed, with a disconnection rate of 0%. Example 4
[0057] Objective: To address issues such as co-frequency interference, inaccurate parameter control, and fragmented data management in multi-site cluster deployments, and to build a blind-spot-free collaborative transmission system for multiple sites, thereby improving cluster operation and maintenance efficiency.
[0058] Implementation System: A cluster consisting of 5 off-grid offshore wind power and energy storage integrated power stations (each station configuration is the same as in Example 1) (distributed in a 10km radius sea area); Core Configuration: (1) The cloud platform has added a “site cluster management module”, which supports partition threshold control, dynamic allocation of frequency hopping sequence and multi-site data correlation analysis.
[0059] (2) Select the cluster center station as the relay node, upgrade its Beidou communication module to the enhanced type (receiver sensitivity -145dBm), and match it with a solar auxiliary power supply system (power 500W).
[0060] (3) Each station terminal has added a "relay communication interface" to support data relay transmission between stations.
[0061] Implementation steps: Step 1: The cloud platform divides salt spray zones according to the location of the stations (nearshore / farshore) and issues corrosion risk thresholds (0.08 mm / year for nearshore and 0.12 mm / year for farshore) respectively; based on the electromagnetic interference spectrum detection data of each station, it dynamically allocates differentiated frequency hopping sequences.
[0062] Step 2: Each station terminal collects, encodes, and transmits data according to the process in Example 1; when the terminal detects that the received power is <-120dBm, it automatically switches to "relay transmission mode" and transmits the data to the central relay station.
[0063] Step 3: The central relay station aggregates data from the four surrounding stations and uploads it in batches to the cloud platform; the solar-assisted power supply system ensures that the relay nodes can work continuously for 24 hours.
[0064] Step 4: The cloud platform analyzes data from multiple sites through the cluster management module, generates cross-site fault warnings and cluster operation and maintenance reports, and distributes them to terminals at each site simultaneously.
[0065] Implementation results: The data transmission success rate of multi-site clusters reached 99.6%, an improvement of 0.1% compared to single-site clusters; the co-channel interference rate was reduced to below 5%; the accuracy rate of cross-site fault correlation early warning reached 95%; and the cluster operation and maintenance efficiency was improved by 40% compared to independent management of a single site. Example 5
[0066] Objective: To improve the system's adaptability to high salt spray, strong electromagnetic interference and extreme weather (tropical storm) scenarios, and to ensure data transmission stability and equipment lifespan under extreme environments.
[0067] Implementation System: Based on the system architecture of Example 1, this system is adapted to an off-grid offshore wind power and energy storage integrated power station (deployed in areas prone to tropical storms) with a single 5MW wind turbine and a 10MWh energy storage system; the core optimization points are: (1) The status sensing module adopts corrosion-resistant packaging (stainless steel shell + fluororubber seal), and the accuracy of the salt spray corrosion sensing unit is improved to 0.005mm / year; the electromagnetic interference sensing unit adds a copper foil shield (shielding effectiveness ≥40dB); the key parameters of the equipment operation sensing unit (gearbox temperature) adopt a dual-sensor redundancy design.
[0068] (2) The Beidou short message communication module is upgraded to an adaptive frequency hopping algorithm (32 frequency points, frequency hopping rate of 2000 hops / second), and equipped with an IP68-level anti-salt spray ceramic antenna (receiving sensitivity -140dBm).
[0069] (3) The capacity of the local cache module has been increased to 32GB, and the data retention time has been extended to 168 hours (7 days), supporting batch retransmission after extreme weather.
[0070] Implementation steps: Step 1: After the system starts, the status perception module activates the "extreme environment monitoring mode", increasing the frequency of salt spray and interference data acquisition to 0.5 seconds / time to monitor environmental changes in real time.
[0071] Step 2: The main control module prioritizes the use of high-risk threshold judgment (corrosion rate > 0.08 mm / year or interference intensity > 70 dBm is considered high risk) to trigger the anti-interference frequency hopping transmission mode in advance.
[0072] Step 3: During a tropical storm, the terminal automatically switches to "emergency caching mode" to reduce the frequency of real-time transmission and focus on caching fault data and critical operational data.
[0073] Step 4: After the storm ends, the terminal automatically wakes up and retransmits cached data in batches through the Beidou short message communication module; the cloud platform parses the data and assesses the device status.
[0074] Implementation results: In extreme environments with salt spray concentrations of 15-20 mg / m³ and electromagnetic interference intensity of 80-100 dBm, the data transmission success rate still reaches 99.5%; the service life of the status sensing module reaches 7 years, which is 2 years longer than that of Example 1; even if there is a 7-day continuous communication interruption, all cached data can still be completely retransmitted after the storm ends.
[0075] Comparative Example 1 Purpose of comparison: By comparing with the existing technology of "single SOC control + conventional Beidou transmission", the technical advantages of the present invention of "dual-dimensional control + modular architecture + coupled coding" are highlighted.
[0076] Comparison System: A conventional Beidou short message terminal (without frequency hopping control function) is used, and the control is based solely on the single dimension of energy storage SOC (SOC>50% normal transmission, SOC≤50% sampling transmission); there is no dedicated state perception module, and salt spray and interference data are not included in the control; the data is uncoupled and directly transmits the raw data; the applicable scenarios are the same as those in Example 1 (conventional salt spray, moderate electromagnetic interference).
[0077] Implementation steps: Step 1: The Beidou terminal connects to the energy storage BMS and only collects SOC data; equipment operation data is collected directly through conventional methods.
[0078] Step 2: Switch the transmission mode according to the SOC value. When SOC > 50%, transmit the full data every 5 minutes. When SOC ≤ 50%, transmit sampled data every 10 minutes.
[0079] Step 3: The raw data is directly transmitted to the cloud via BeiDou short message without verification or compression.
[0080] Step 4: The cloud platform directly receives the raw data, without dynamic threshold adjustment function, and only generates basic operation and maintenance records.
[0081] Comparison results: The specific comparative data and advantages are as follows: In terms of data transmission success rate, the comparative example (existing technology) is only 92.3%, while Embodiment 1 of this invention can reach 99.6%. The core advantage lies in the dual-dimensional control and anti-interference frequency hopping design adopted by this invention, which greatly improves transmission stability. In terms of average daily power consumption of the terminal, the comparative example is 1.25kWh, while Embodiment 1 of this invention is only 0.5kWh. Through the low-power management module and precise transmission control, a 60% reduction in power consumption is achieved. In terms of fault data transmission delay, the comparative example requires ≥30 seconds, while Embodiment 1 of this invention can control it within ≤5 seconds. This is due to the combination of coupling coding technology and data priority rules, which significantly shortens the fault response time. In terms of service life in high salt spray environment, the comparative example is only 2 years, while Embodiment 1 of this invention can reach 5 years. The core reason is the modular packaging design and the special optimization of the sensing unit, which greatly improves environmental adaptability.
[0082] Compared with Examples 1-5 and Comparative Example 1, the five embodiments of the present invention are compared with the prior art Comparative Example 1 (single SOC control + conventional Beidou transmission) from the core dimensions of transmission stability, power consumption control, scenario adaptability, equipment lifespan and operation and maintenance efficiency. The comparison clearly highlights the technical innovation of the present invention's "dual-dimensional control + modular architecture + coupled coding", as detailed below: Regarding transmission stability, the comparative model, lacking anti-interference design and salt spray / interference data control, achieved a data transmission success rate of only 92.3%, with fault data latency exceeding 30 seconds. Example 1, as the basic model, achieved a success rate of 99.6% and a latency of ≤5 seconds in typical scenarios. Example 2, through optimized coupling coding, maintained efficient transmission even with a doubling of data volume from multiple devices, reducing the error rate to 10⁻. 6 The following are examples: Example 4 adds station relay coordination and dynamic frequency hopping, increasing the trunking transmission success rate to 99.6% and the co-channel interference rate to less than 5%; Even in Example 5, which faces extreme environments with high salt spray and strong interference, the success rate remains stable at 99.5%, completely solving the transmission instability problem of the comparison ratio.
[0083] In terms of power consumption control, the average daily power consumption of the comparable terminal is 1.25kWh, with no precise low-power strategy. Example 1 reduces power consumption to 0.5kWh through the low-power management module, a reduction of 60%; Example 3 specifically optimizes the low-power strategy, reducing the power supply from 10mW to 5mW, extending the low-power battery life from 72 hours to 120 hours, and maintaining connectivity even without charging for 72 hours, nearly doubling the battery life of the comparable terminal.
[0084] In terms of scenario adaptability, the comparative example is only adapted to simple scenarios and lacks adaptability to extreme environments and multiple devices / sites. Example 1 covers conventional salt spray and moderate interference scenarios; Example 2 adapts to multi-source data transmission of a cluster of 3 wind turbines; Example 3 adapts to low-latitude, rainy, and insufficient charging scenarios; Example 4 supports collaborative operation of a cluster of 5 sites; Example 5, through anti-corrosion packaging and high-sensitivity antenna design, adapts to extreme environments with frequent tropical storms. In contrast, the comparative example can only operate stably for 2 years in a high salt spray environment, while Example 1 has a lifespan of 5 years, and Example 5 extends it to 7 years.
[0085] In terms of operational efficiency, the comparative model lacks dynamic adjustment and correlation analysis functions, only generating basic records. Examples 1-5 all support cloud-based dynamic threshold adjustment, and Example 4 adds cross-site fault early warning with an accuracy rate of 95%, improving cluster operation and maintenance efficiency by 40%. The coupled coding and cached transmission design of each example ensures data integrity and traceability, making it easier to support precise operation and maintenance compared to the original data transmission mode of the comparative model.
[0086] In summary, comparative technologies suffer from drawbacks such as poor stability, high power consumption, and narrow adaptability due to their single-dimensional control, lack of modular sensing and anti-interference design. This invention, through multiple embodiments covering different scenarios, achieves a transmission success rate of ≥99.5%, reduces power consumption by over 60%, and significantly improves adaptability to extreme environments through its core technology. It comprehensively addresses the pain points of existing technologies and possesses strong practical value.
[0087] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.
[0088] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A clean energy power station BeiDou short message data acquisition and transmission system with no blind spots, characterized in that, The system includes: The state awareness module is used to collect various types of state data; The main control module, connected to the state perception module, generates message transmission control commands based on a preset dual-dimensional control rule of "energy storage SOC range + corrosion / interference level". The BeiDou short message communication module is connected to the main control module. It switches the transmission mode and executes data transmission according to the control command to achieve blind-zone-free communication. The energy storage linkage module is connected to the main control module and the site energy storage system respectively, so as to realize energy storage status feedback and power supply strategy control. The cloud platform communicates with the BeiDou short message communication module via the BeiDou satellite link to achieve data reception and control parameter distribution; The main control module uses the status data collected by the status sensing module to match "energy storage SOC range + corrosion / interference level" and trigger the corresponding transmission mode and data priority rules to achieve a dynamic balance between transmission stability and power consumption.
2. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The status perception module includes a salt spray corrosion perception unit, an electromagnetic interference perception unit, a SOC perception unit, and an equipment operation perception unit, all integrated into the same functional module. The various types of status data include at least BeiDou antenna salt spray corrosion status data, site electromagnetic interference intensity data, energy storage system SOC data, and wind power equipment operation data. Specifically, the salt spray corrosion perception unit collects the surface corrosion rate, coating damage area, and salt spray concentration of the BeiDou antenna; the electromagnetic interference perception unit collects the electromagnetic radiation intensity in the 0.1MHz~6GHz frequency band inside the wind turbine nacelle; the SOC perception unit collects the remaining power, charging and discharging current, and voltage of the energy storage battery; and the equipment operation perception unit collects the gearbox temperature, main shaft speed, generator power, and nacelle attitude data of the wind power equipment.
3. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, Before generating control commands, the main control module needs to couple and encode multiple types of status data. The coupling and encoding adopts a multi-dimensional matrix encoding algorithm, which realizes the synchronous encoding of multiple types of data by allocating different types of data to the row / column dimensions of the matrix. Then, the salt spray corrosion data, electromagnetic interference data, SOC data and equipment operation data are mapped to different encoding dimensions to generate a coupled data packet containing a verification field. The verification field consists of salt spray corrosion degree data and electromagnetic interference intensity data.
4. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The "energy storage SOC range + corrosion / interference level" dual-dimensional control rule is as follows: the energy storage SOC data is used to divide the energy into three power ranges of high, medium and low, and the salt spray corrosion status data and electromagnetic interference intensity data are used to divide the risk levels of high and low. The transmission modes include at least normal transmission mode, anti-interference frequency hopping transmission mode, sampling transmission mode, and ultra-low power emergency transmission mode. Different combinations of "power range - risk level" correspond to different transmission modes: when the energy storage SOC > 80% and the risk level is low, normal transmission mode is triggered, transmitting all equipment operation data and environmental data at a preset frequency; when the energy storage SOC > 80% and the risk level is high, anti-interference frequency hopping transmission mode is triggered, activating data priority rules; when 50% ≤ energy storage SOC ≤ 80% and the risk level is low, sampling transmission mode is triggered, transmitting data at the original transmission frequency of 50%. The system transmits core equipment operation data. When the energy storage SOC is between 50% and 80% and the risk level is high, it triggers an anti-interference frequency hopping + sampling transmission combination mode. When the energy storage SOC is less than 50%, it triggers an ultra-low power emergency transmission mode, and the terminal enters sleep mode. Among these, under the high risk level, priority is given to transmitting antenna corrosion status data and wind power key component operation data, while non-core data such as ambient temperature and humidity are temporarily suspended. Under the ultra-low power emergency mode, the system only wakes up and sends an ultra-concise alarm message when the dual anomalies of "excessive salt spray corrosion + overcharging / over-discharging of energy storage" are detected. After the energy storage SOC is ≥ 50%, the system wakes up and retransmits the cached data.
5. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The BeiDou short message communication module includes a frequency hopping control module; when the risk level is high, the frequency hopping control module switches the communication frequency according to a preset frequency hopping sequence; the frequency hopping sequence is issued by the cloud platform based on the electromagnetic interference spectrum characteristics of the site area.
6. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The cloud platform includes a parameter control module and a data parsing module. The parameter control module adjusts the energy storage SOC range threshold and the salt spray corrosion / electromagnetic interference risk level threshold according to the seasonal characteristics of salt spray in the site area and the changes in the charging and discharging efficiency of the energy storage system, and sends them to the main control module via Beidou short message. The data parsing module decodes the received coupled data packets, separates various status data, and generates a site operation and maintenance report.
7. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The energy storage linkage module includes a low-power management module; when the terminal is in sleep mode, the low-power management module controls the energy storage system to only supply power to the core sensing unit of the status sensing module and the wake-up module of the main control module, with a power supply power ≤10mW; the energy storage status feedback specifically includes SOC data, charging and discharging power and fault status feedback.
8. The clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, It also includes a local cache module; the local cache module encrypts and caches device operation data and abnormal alarm data when the terminal is in sleep mode or communication is interrupted; the local cache module has a cache capacity of ≥16GB and a cache data retention time of ≥72 hours.
9. A clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 4, characterized in that, The key wind power components include gearbox, main shaft, generator, and pitch system. Their operating data includes at least gearbox lubricating oil temperature, main shaft vibration frequency, generator stator temperature, and pitch angle. The ultra-compact alarm message consists of corrosion exceeding alarm information and equipment fault codes, and the message length is compressed by more than 60% compared to the full data.
10. A clean energy power station BeiDou short message data acquisition and transmission system with no blind spots as described in claim 1, characterized in that, The blind-zone-free transmission is achieved through anti-interference frequency hopping, sleep-wake-up retransmission, and local caching; in scenarios with high salt spray, strong electromagnetic interference, and low energy storage capacity, the data transmission success rate is ≥99.5%.