Intelligent factory wireless communication system and method based on all-in-one antenna technology

Abstract

The invention discloses an intelligent factory wireless communication method based on an all-in-one antenna technology, and relates to the field of wireless communication, and the method comprises the steps: obtaining the number of all-in-one antennas of a transmitting end and a receiving end of a communication line, and the structure of an all-in-one antenna PCB; optimizing a wireless transmission mode of the base station through a spatial multiplexing and channel estimation technology; planning a wireless network according to the optimized base station wireless transmission mode comprises planning an all-in-one antenna position, an optimal signal coverage area and a network capacity; and performing security pre-coding on the all-in-one antenna, and optimizing a wireless network. The structure of the all-in-one antenna and the wireless network arrangement are reasonably designed, the mode that multiple communication modules transmit information at the same time is met, wireless signal transmission of mobile equipment and fixed equipment is met at the same time, the wireless communication network is optimized from all aspects, and the wireless communication efficiency is improved. Therefore, the accuracy and effectiveness of a wireless communication channel are ensured, the transmitting and receiving loss of the base station is low, the channel data rate, accuracy and safety are high, and the overall effect of antenna setting is optimal.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communications, and in particular to a smart factory wireless communication system and method based on an all-in-one antenna technology. Background Art

[0002] In traditional industrial environments, wireless communication systems often use antennas of multiple frequency bands to cover various communication needs, such as Wi-Fi, Bluetooth, ZigBee, etc. Each wireless technology may require an independent antenna to ensure good signal coverage and performance, which not only increases the complexity of the system, but also occupies valuable space and increases costs and maintenance difficulties. The smart factory wireless communication system based on all-in-one antenna technology not only improves the communication efficiency and reliability in the industrial production environment, but also has significant advantages in cost savings and resource management. It provides key support for the digital transformation of modern factories by integrating advanced antenna design, RF technology and intelligent management.

[0003] At present, in the Chinese invention patent with publication number CN200710000289.7, a method for applying intelligent antenna technology to wireless communication system is that under the coverage of sector antenna, the base station adopts the periodic scanning method to obtain the best beam direction pointing to each terminal, and when sending to the selected terminal user, it sends in the best beam direction; and for the channels and wireless resources shared by all terminal users under the sector, full sector coverage is adopted to send, which can further improve the system capacity of the wireless communication system and other related anti-interference capabilities. However, the existing technology cannot reasonably design the structure of the all-in-one antenna and the layout of the wireless network, cannot meet the way of transmitting information simultaneously by multiple communication modules, cannot meet the wireless signal transmission of mobile devices and fixed devices at the same time, and cannot optimize the wireless communication network from all aspects, so as to simultaneously ensure that the wireless communication channel is accurate and effective, the base station transmission and reception loss is low, the channel data rate, accuracy and security are high, and the overall effect of antenna setting is optimal. Summary of the invention

[0004] The technical problem solved by the present invention is that the prior art cannot reasonably design the structure of an all-in-one antenna and the layout of a wireless network, cannot meet the requirements of a plurality of communication modules for simultaneously transmitting information, cannot simultaneously meet the requirements of wireless signal transmission of mobile devices and fixed devices, and cannot optimize the wireless communication network from all aspects, thereby being unable to simultaneously ensure that the wireless communication channel is accurate and effective, the base station transmission and reception losses are low, the channel data rate, accuracy and security are high, and the overall effect of the antenna setting is optimal.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a wireless communication method for a smart factory based on an all-in-one antenna technology, comprising the following steps:

[0006] Step S1: obtaining the number of all-in-one antennas at the transmitting end and the receiving end of the communication route and the structure of the PCB board of the all-in-one antenna, and obtaining the function of the PCB board according to the structure of the PCB board;

[0007] Step S2: Using a distributed antenna system to construct a fixed distribution structure of antennas, using mobile relay technology to construct a mobile network structure, and optimizing the wireless transmission mode of the base station through spatial multiplexing and channel estimation technology;

[0008] Step S3: planning a wireless network according to the optimized base station wireless transmission mode, including planning a multi-antenna position, to obtain an optimal signal coverage area and network capacity;

[0009] Step S4: Select the function of the PCB board of the transmitting information end and perform security precoding for the all-in-one antenna, and optimize the wireless network.

[0010] The PCB board functions of the all-in-one antenna are reasonably set to meet the needs of multiple communication modules for simultaneous information transmission, as well as the wireless signal transmission of mobile devices and fixed devices. By optimizing the wireless communication network from all aspects, the wireless communication channel is accurate and effective, the base station transmission and reception loss is low, the channel data rate, accuracy and security are high, and the overall antenna setting effect is optimal.

[0011] Preferably, the step S1 comprises:

[0012] The structure of the all-in-one antenna PCB board includes:

[0013] A radiation circuit, a matching circuit, a radio frequency connector and a communication module, wherein the radiation circuit is connected to the matching circuit, and the matching circuit is connected to the radio frequency connector, so that multiple antennas used to match different types of communication modules are uniformly integrated on the all-in-one antenna PCB board;

[0014] The communication modules include Wi-Fi modules, Bluetooth modules, Zigbee modules, LoRa modules, 4G / 5G modules and NFC modules;

[0015] A variety of antennas for different types of communication modules, including omnidirectional antennas, directional antennas, microstrip antennas, helical antennas, and patch antennas;

[0016] The functions of the radiation circuit include signal transmission, signal source connection and signal processing, the functions of the matching circuit include impedance matching, signal tuning, reduction of reflection loss and improvement of bandwidth, and the functions of the RF connector include signal filtering, mechanical fixation and electromagnetic shielding.

[0017] Preferably, step S2 comprises:

[0018] The fixed distribution structure of antennas constructed using a distributed antenna system includes:

[0019] According to the preset antenna communication range, the communication range of the all-in-one antenna is calculated, and the all-in-one antenna is placed at a fixed distance in the antenna communication range to form an antenna array with uniform spacing. The information transmission rate and the capacity of simultaneously sending information are improved by forming a single-user space division multiplexing method of the antenna array. All the all-in-one antennas are classified into multiple groups according to communication functions. The communication functions include random combinations of different types of communication modules. The all-in-one antennas of the same group are connected to the same router to create a virtual functional local area network. The virtual functional local area network is provided with a number of border routers to use the border gateway protocol to realize information exchange among the all-in-one antennas of different groups.

[0020] Preferably, constructing a mobile network structure using mobile relay technology includes:

[0021] Setting an adjustment threshold, the multiple antennas included in the mobile network structure sequentially adjust angles greater than the adjustment threshold times to obtain the best angles belonging to each multiple antenna;

[0022] The relay bearer point of the mobile network structure uses a same-frequency repeater and is a portable mobile bearer point, and the total bandwidth of the portable mobile bearer point is greater than or equal to the total bandwidth of the virtual functional local area network.

[0023] Preferably, optimizing the wireless transmission mode of the base station by using the spatial multiplexing and channel estimation technology includes:

[0024] Divide each virtual functional local area network into cells, including macro cells, micro cells and pico cells, cluster each cell into a cell cluster form through a k-means algorithm, implement spectrum reuse technology in each cell, transmit information through different spectrum channels, use coordinated multi-point technology to synchronize information transmission between adjacent cells and adjacent cell clusters, reduce interference between adjacent cells and adjacent cell clusters, implement interference management strategies, regularly monitor and adjust the parameters of the spectrum channel, and the parameters of the spectrum channel include spectrum bandwidth, center frequency, channel bandwidth, signal power, noise power, signal-to-noise ratio and delay;

[0025] Acquire first channel state information by a channel measurement method for measuring a random signal, wherein the first channel state information includes numerical information of a channel delay, a path loss, a multipath effect, a channel response, a channel impulse response, a frequency response, and a phase distortion, estimate second channel state information of the channel by using a minimum mean square error channel estimation algorithm, wherein the second channel state information includes the first channel state information estimated by using the minimum mean square error channel estimation algorithm, perform vector cross multiplication on the first channel state information and the second channel state information to obtain third channel state information, feed the third channel state information back to a base station, and send it as a transmission signal of a base station sending a signal;

[0026] Adjust transmission parameters through the information transmission control channel of the all-in-one antenna, the transmission parameters include modulation mode and coding rate, collect feedback signals from information receiving base stations, the feedback signal category is the same as the transmission signal category sent by the signal sending base station, and adjust the transmission power, spectrum allocation and scheduling strategy of the signal sending base station based on the feedback signal to adapt to channel conditions, the channel conditions include bandwidth, delay, utilization rate and delay-bandwidth product, and adapting to the channel conditions includes adjusting the transmission power, spectrum allocation and scheduling strategy to maximize the bandwidth of the channel, minimize the delay, maximize the utilization rate and minimize the delay-bandwidth product;

[0027] Combining spatial multiplexing techniques with channel estimation information to optimize spectrum usage and cell configuration includes:

[0028] The scheduling strategy of the wireless resources is optimized according to the third channel state information, wherein the scheduling strategy includes adjusting and monitoring the real-time performance of the wireless transmission, wherein the real-time performance includes data rate, delay and error rate.

[0029] Preferably, the scheduling strategy for optimizing wireless resources according to the third channel state information includes:

[0030] Using the third channel state information as a channel dependent variable parameter, encoding the cells of each virtual functional local area network, inputting the channel dependent variable parameter into a collaborative spectrum classification algorithm model, dynamically allocating spectrum resources, and evenly distributing broadband traffic among each cell and base station;

[0031] Analyzing the real-time performance data and evaluating the effects of spatial multiplexing and channel estimation includes:

[0032] respectively controlling to change only one real-time performance, adjusting the channel dependent variable parameter, observing the change of the real-time performance to obtain the optimal channel dependent variable parameter, and if the data rate increases, selecting the current first channel dependent variable parameter;

[0033] If the delay is reduced, the current second channel dependent variable parameter is selected;

[0034] If the error rate decreases, the current third channel dependent variable parameter is selected;

[0035] Taking a weighted average of the first channel dependent variable parameter, the second channel dependent variable parameter and the third channel dependent variable parameter to obtain a fourth channel dependent variable parameter for optimal channel spectrum allocation, re-inputting the fourth channel dependent variable parameter into the collaborative spectrum classification algorithm model to obtain a new channel standard and a new transmission protocol sequence suitable for the channel standard;

[0036] The channel standard includes the first channel state information, parameters of a spectrum channel and channel conditions.

[0037] Preferably, step S3 comprises:

[0038] Transmitting signals according to the channel standard and transmission protocol obtained in step S2, randomly selecting any cell in each cell cluster to send data to the mobile base station, identifying the forward beam and the interference beam in the reverse direction by coordinating the direction of the transmitted signal according to the direction of the interference signal of other cells, and avoiding the interference beam, and shaping the forward beam includes the base station using a single directional wave when providing services to users;

[0039] The loss value of the radio frequency signal of the forward wave is calculated using the free space path loss as the first loss value, and its mathematical expression is:

[0040]

[0041] Where d is the distance between the transmitter and the receiver in meters, f is the frequency of the signal in Hertz, and c is the speed of light, which is approximately 3×10 8 m / s;

[0042] The loss value of the radio frequency signal of the feedback signal is calculated by using the free space path loss as the second loss value, the first loss value and the second loss value are vector-cross-multiplied to obtain the spatial loss value of the base station sending the signal, and the antenna position is planned according to the spatial loss value, including:

[0043] The spatial loss value is input into a pre-trained support vector regression model, and the height, location node and placement angle of the multi-antenna are output. According to the new location planning of the multi-antenna, the optimal signal coverage area and network capacity are obtained.

[0044] Preferably, the step S4 comprises:

[0045] The function selection of the PCB board at the information transmitting end of the all-in-one antenna is determined by the signal category sent by the base station sending the signal and the required functions. The signal category includes the signal category that can be sent by the communication module on the PCB board, and the required functions include the functions of the radiation circuit, matching circuit and RF connector on the PCB board.

[0046] Preferably, a strong encryption algorithm is used to encrypt data to ensure the security of data during transmission, implement user authentication and device authentication mechanisms, use digital certificates and public key infrastructure (PKI), use hash functions and message authentication codes (MAC) to verify received information, prevent unauthorized access, and ensure the reliability of identity authentication and data integrity.

[0047] The smart factory wireless communication system based on all-in-one antenna technology includes smart production module, smart management module, smart design module and smart transmission module:

[0048] The intelligent production module is used to produce the all-in-one antenna required by the user, and to embed a PCB board with multiple functions into the all-in-one antenna;

[0049] The intelligent management module is used to manage and control the factory assembly line operation and the execution of the intelligent design module and the intelligent transmission module;

[0050] The intelligent design module is used to initially plan the placement of the all-in-one antenna, and optimize the placement of the all-in-one antenna and the all-in-one antenna channel standard through an intelligent factory wireless communication method based on the all-in-one antenna technology;

[0051] The intelligent transmission module is used to control the transmission and reception of the all-in-one antenna, collect all the transmission and reception data and hand them over to the intelligent design module for optimization calculation.

[0052] The beneficial effects of the present invention are as follows: the structure of the all-in-one antenna and the wireless network layout are reasonably designed to meet the requirements of multiple communication modules for simultaneously transmitting information, and to meet the requirements of wireless signal transmission for mobile devices and fixed devices. By optimizing the wireless communication network from various aspects, it is ensured that the wireless communication channel is accurate and effective, the base station transmission and reception losses are low, the channel data rate, accuracy and security are high, and the overall antenna setting effect is optimal. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A basic flow chart of a smart factory wireless communication method based on all-in-one antenna technology provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, but not all of the embodiments.

[0055] Reference Figure 1 , as an embodiment of the present invention, provides a smart factory wireless communication method based on all-in-one antenna technology, comprising the following steps:

[0056] Step S1: obtaining the number of all-in-one antennas at the transmitting end and the receiving end of the communication route and the structure of the PCB board of the all-in-one antenna, and obtaining the function of the PCB board according to the structure of the PCB board;

[0057] Step S2: Using a distributed antenna system to construct a fixed distribution structure of antennas, using mobile relay technology to construct a mobile network structure, and optimizing the wireless transmission mode of the base station through spatial multiplexing and channel estimation technology;

[0058] Step S3: planning a wireless network according to the optimized base station wireless transmission mode, including planning a multi-antenna position, to obtain an optimal signal coverage area and network capacity;

[0059] Step S4: Select the function of the PCB board of the transmitting information end and perform security precoding for the all-in-one antenna, and optimize the wireless network.

[0060] The step S1 comprises:

[0061] The structure of the all-in-one antenna PCB board includes:

[0062] A radiation circuit, a matching circuit, a radio frequency connector and a communication module, wherein the radiation circuit is connected to the matching circuit, and the matching circuit is connected to the radio frequency connector, so that multiple antennas used to match different types of communication modules are uniformly integrated on the all-in-one antenna PCB board;

[0063] The communication modules include Wi-Fi modules, Bluetooth modules, Zigbee modules, LoRa modules, 4G / 5G modules and NFC modules;

[0064] A variety of antennas for different types of communication modules, including omnidirectional antennas, directional antennas, microstrip antennas, helical antennas, and patch antennas;

[0065] Select a number of corresponding antennas according to different communication modules to transmit information wirelessly;

[0066] The functions of the radiation circuit include signal transmission, signal source connection and signal processing, the functions of the matching circuit include impedance matching, signal tuning, reduction of reflection loss and improvement of bandwidth, and the functions of the RF connector include signal filtering, mechanical fixation and electromagnetic shielding.

[0067] The antennas at the transmitting and receiving ends should be evenly distributed and keep a sufficient distance to ensure that the antenna layout is optimized to reduce interference and signal attenuation, avoid mutual interference and signal blocking to maximize the spatial multiplexing effect, and consider the specific conditions of the factory environment, such as the impact of metal equipment and structures on the signal.

[0068] The step S2 comprises:

[0069] The fixed distribution structure of antennas constructed using a distributed antenna system includes:

[0070] According to the preset antenna communication range, the communication range of the all-in-one antenna is calculated, and the all-in-one antenna is placed at a fixed distance in the antenna communication range to form an antenna array with uniform spacing, so as to ensure that the combined communication range of all the all-in-one antennas can cover the antenna communication range, and to improve the information transmission rate and the capacity of simultaneously sending information by forming a single-user space division multiplexing mode of the antenna array, and to classify all the all-in-one antennas into multiple groups according to the communication function, and the communication function includes a random combination of different types of communication modules, and the all-in-one antennas of the same group are connected to the same router to create a virtual functional local area network, and the virtual functional local area network is provided with a plurality of border routers to realize information exchange among the all-in-one antennas of different groups by using the border gateway protocol.

[0071] Since the all-in-one antenna is embedded with different types of communication modules, there will be repeated all-in-one antennas in different virtual functional local area networks, that is, the all-in-one antennas that appear repeatedly in different virtual functional local area networks have multiple virtual IPs.

[0072] Routing forwarding algorithm:

[0073] Assume that the destination address of an IP packet to be forwarded is D and the network prefix is ​​N:

[0074] if(N belongs to a directly connected network)

[0075] Forward IP packets directly

[0076] else if (the routing table contains a route with destination D)

[0077] Forward IP packets according to the next hop in the routing table. If there are multiple matching routes, select the route with the longest subnet mask length for forwarding.

[0078] else if (default route exists in routing table)

[0079] Forward IP packets based on the default route

[0080] else

[0081] Send an ICMP error message to the source host, notifying that the IP packet cannot be forwarded

[0082] end if

[0083] The mobile network structure constructed by using mobile relay technology includes:

[0084] Setting an adjustment threshold, the multiple antennas included in the mobile network structure sequentially adjust angles greater than the adjustment threshold times to obtain the best angles belonging to each multiple antenna;

[0085] The relay bearer point of the mobile network structure uses a same-frequency repeater and is a portable mobile bearer point, and the total bandwidth of the portable mobile bearer point is greater than or equal to the total bandwidth of the virtual functional local area network.

[0086] The optimization of the wireless transmission mode of the base station through spatial multiplexing and channel estimation technology includes:

[0087] Each virtual functional local area network is divided into cells, including macro cells, micro cells and pico cells. Each cell is clustered into a cell cluster using a k-means algorithm. Spectrum reuse technology is implemented in each cell. Information is transmitted through different spectrum channels. Coordinated multi-point technology is used to synchronize information transmission between adjacent cells and adjacent cell clusters to reduce interference between adjacent cells and adjacent cell clusters. Interference management strategies are implemented to regularly monitor and adjust the parameters of the spectrum channels to maintain good network performance. The parameters of the spectrum channels include spectrum bandwidth, center frequency, channel bandwidth, signal power, noise power, signal-to-noise ratio and delay.

[0088] Acquire first channel state information by a channel measurement method for measuring a random signal, wherein the first channel state information includes numerical information of a channel delay, a path loss, a multipath effect, a channel response, a channel impulse response, a frequency response, and a phase distortion, estimate second channel state information of the channel by using a minimum mean square error channel estimation algorithm, wherein the second channel state information includes the first channel state information estimated by using the minimum mean square error channel estimation algorithm, perform vector cross multiplication on the first channel state information and the second channel state information to obtain third channel state information, feed the third channel state information back to a base station, and send it as a transmission signal of a base station sending a signal;

[0089] Adjust transmission parameters through the information transmission control channel of the all-in-one antenna, the transmission parameters include modulation mode and coding rate, collect feedback signals from information receiving base stations, the feedback signal category is the same as the transmission signal category sent by the signal sending base station, and adjust the transmission power, spectrum allocation and scheduling strategy of the signal sending base station based on the feedback signal to adapt to channel conditions, the channel conditions include bandwidth, delay, utilization rate and delay-bandwidth product, and adapting to the channel conditions includes adjusting the transmission power, spectrum allocation and scheduling strategy to maximize the bandwidth of the channel, minimize the delay, maximize the utilization rate and minimize the delay-bandwidth product;

[0090] Combining spatial multiplexing techniques with channel estimation information to optimize spectrum usage and cell configuration includes:

[0091] The scheduling strategy of the wireless resources is optimized according to the third channel state information, wherein the scheduling strategy includes adjusting and monitoring the real-time performance of the wireless transmission, wherein the real-time performance includes data rate, delay and error rate, so as to improve the overall performance of the wireless network.

[0092] The scheduling strategy for optimizing wireless resources according to the third channel state information includes:

[0093] Using the third channel state information as a channel dependent variable parameter, encoding the cells of each virtual functional local area network, inputting the channel dependent variable parameter into a collaborative spectrum classification algorithm model, dynamically allocating spectrum resources, and evenly distributing broadband traffic among each cell and base station;

[0094] Analyzing the real-time performance data and evaluating the effects of spatial multiplexing and channel estimation includes:

[0095] respectively controlling to change only one real-time performance, adjusting the channel dependent variable parameter, observing the change of the real-time performance to obtain the optimal channel dependent variable parameter, and if the data rate increases, selecting the current first channel dependent variable parameter;

[0096] If the delay is reduced, the current second channel dependent variable parameter is selected;

[0097] If the error rate decreases, the current third channel dependent variable parameter is selected;

[0098] Taking a weighted average of the first channel dependent variable parameter, the second channel dependent variable parameter and the third channel dependent variable parameter to obtain a fourth channel dependent variable parameter for optimal channel spectrum allocation, re-inputting the fourth channel dependent variable parameter into the collaborative spectrum classification algorithm model to obtain a new channel standard and a new transmission protocol sequence suitable for the channel standard;

[0099] The channel standard includes the first channel state information, parameters of a spectrum channel and channel conditions.

[0100] The use of spatial multiplexing and channel estimation technology can effectively optimize the wireless transmission method of base stations and improve the capacity, coverage and overall performance of the network.

[0101] The step S3 comprises:

[0102] Transmitting signals according to the channel standard and transmission protocol obtained in step S2, randomly selecting any cell in each cell cluster to send data to the mobile base station, identifying the forward beam and the interference beam in the reverse direction by coordinating the direction of the transmitted signal according to the direction of the interference signal of other cells, and avoiding the interference beam, and shaping the forward beam includes the base station using a single directional wave when providing services to users, so as to reduce interference between multiple users;

[0103] The loss value of the radio frequency signal of the forward wave is calculated using the free space path loss as the first loss value, and its mathematical expression is:

[0104]

[0105] Where d is the distance between the transmitter and the receiver in meters, f is the frequency of the signal in Hertz, and c is the speed of light, which is approximately 3×10 8 m / s;

[0106] The loss value of the radio frequency signal of the feedback signal is calculated by using the free space path loss as the second loss value, the first loss value and the second loss value are vector-cross-multiplied to obtain the spatial loss value of the base station sending the signal, and the antenna position is planned according to the spatial loss value, including:

[0107] The spatial loss value is input into a pre-trained support vector regression model, and the height, location node and placement angle of the multi-antenna are output. According to the new location planning of the multi-antenna, the optimal signal coverage area and network capacity are obtained.

[0108] Ensures optimal performance and efficient wireless communication.

[0109] The step S4 comprises:

[0110] The function selection of the PCB board at the information transmitting end of the all-in-one antenna is determined by the signal category sent by the base station sending the signal and the required functions. The signal category includes the signal category that can be sent by the communication module on the PCB board, and the required functions include the functions of the radiation circuit, matching circuit and RF connector on the PCB board.

[0111] Use strong encryption algorithms to encrypt data to ensure the security of data during transmission, implement user authentication and device authentication mechanisms, use digital certificates and public key infrastructure (PKI), and use hash functions and message authentication codes (MAC) to verify received information to prevent unauthorized access and ensure the reliability of identity authentication and data integrity.

[0112] The smart factory wireless communication system based on all-in-one antenna technology includes smart production module, smart management module, smart design module and smart transmission module:

[0113] The intelligent production module is used to produce the all-in-one antenna required by the user, and to embed a PCB board with multiple functions into the all-in-one antenna;

[0114] The intelligent management module is used to manage and control the factory assembly line operation and the execution of the intelligent design module and the intelligent transmission module;

[0115] The intelligent design module is used to initially plan the placement of the all-in-one antenna, and optimize the placement of the all-in-one antenna and the all-in-one antenna channel standard through an intelligent factory wireless communication method based on the all-in-one antenna technology;

[0116] The intelligent transmission module is used to control the transmission and reception of the all-in-one antenna, collect all the transmission and reception data and hand them over to the intelligent design module for optimization calculation.

[0117] Reasonable setting of the PCB board function of the all-in-one antenna and design of the structure and wireless network layout of the all-in-one antenna can meet the simultaneous information transmission of multiple communication modules and the wireless signal transmission of mobile devices and fixed devices. By optimizing the wireless communication network from all aspects, the overall design of the optimally planned wireless network is obtained based on spatial multiplexing technology and channel estimation technology, different machine learning models and free space path loss calculation, and strong encryption algorithm is used to encrypt the data to ensure the security of the data during transmission, thereby ensuring that the wireless communication channel is accurate and effective, the base station transmission and reception loss is low, the channel data rate, accuracy and security are high, and the overall effect of the antenna setting is optimal.

[0118] It should be understood by those skilled in the art that the embodiments of the present invention can be provided as methods, systems or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program codes. Among them, the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, referred to as EPROM), programmable read-only memory (Programmable Red-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, disk or optical disk. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0119] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wireless communication method for a smart factory based on an all-in-one antenna technology, characterized in that: The following steps are involved: Step S1: obtaining the number of all-in-one antennas at the transmitting end and the receiving end of the communication route and the structure of the PCB board of the all-in-one antenna, and obtaining the function of the PCB board according to the structure of the PCB board; Step S2: Using a distributed antenna system to construct a fixed distribution structure of antennas, using mobile relay technology to construct a mobile network structure, and optimizing the wireless transmission mode of the base station through spatial multiplexing and channel estimation technology; Step S3: planning a wireless network according to the optimized base station wireless transmission mode, including planning a multi-antenna position, to obtain an optimal signal coverage area and network capacity; Step S4: Select the function of the PCB board of the transmitting information end and perform security precoding for the all-in-one antenna, and optimize the wireless network.

2. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 1, characterized in that: The step S1 comprises: The structure of the all-in-one antenna PCB board includes: A radiation circuit, a matching circuit, a radio frequency connector and a communication module, wherein the radiation circuit is connected to the matching circuit, and the matching circuit is connected to the radio frequency connector, so that a variety of antennas used to match different types of communication modules are uniformly integrated on the all-in-one antenna PCB board; The communication modules include Wi-Fi modules, Bluetooth modules, Zigbee modules, LoRa modules, 4G / 5G modules and NFC modules; A variety of antennas for different types of communication modules, including omnidirectional antennas, directional antennas, microstrip antennas, helical antennas, and patch antennas; The functions of the radiation circuit include signal transmission, signal source connection and signal processing, the functions of the matching circuit include impedance matching, signal tuning, reduction of reflection loss and improvement of bandwidth, and the functions of the RF connector include signal filtering, mechanical fixation and electromagnetic shielding.

3. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 2, characterized in that: The step S2 comprises: The fixed distribution structure of antennas constructed using a distributed antenna system includes: According to the preset antenna communication range, the communication range of the all-in-one antenna is calculated, and the all-in-one antenna is placed at a fixed distance in the antenna communication range to form an antenna array with uniform spacing. The information transmission rate and the capacity of simultaneously sending information are improved by forming a single-user space division multiplexing method of the antenna array. All the all-in-one antennas are classified into multiple groups according to communication functions. The communication functions include random combinations of different types of communication modules. The all-in-one antennas of the same group are connected to the same router to create a virtual functional local area network. The virtual functional local area network is provided with a number of border routers to use the border gateway protocol to realize information exchange among the all-in-one antennas of different groups.

4. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 3, characterized in that: The mobile network structure constructed by using mobile relay technology includes: Setting an adjustment threshold, the multiple antennas included in the mobile network structure sequentially adjust angles greater than the adjustment threshold times to obtain the best angles belonging to each multiple antenna; The relay bearer point of the mobile network structure uses a same-frequency repeater and is a portable mobile bearer point, and the total bandwidth of the portable mobile bearer point is greater than or equal to the total bandwidth of the virtual functional local area network.

5. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 4, characterized in that: The optimization of the wireless transmission mode of the base station through spatial multiplexing and channel estimation technology includes: Divide each virtual functional local area network into cells, including macro cells, micro cells and pico cells, cluster each cell into a cell cluster form through a k-means algorithm, implement spectrum reuse technology in each cell, transmit information through different spectrum channels, use coordinated multi-point technology to synchronize information transmission between adjacent cells and adjacent cell clusters, reduce interference between adjacent cells and adjacent cell clusters, implement interference management strategies, regularly monitor and adjust the parameters of the spectrum channel, and the parameters of the spectrum channel include spectrum bandwidth, center frequency, channel bandwidth, signal power, noise power, signal-to-noise ratio and delay; Acquire first channel state information by a channel measurement method for measuring a random signal, wherein the first channel state information includes numerical information of a channel delay, a path loss, a multipath effect, a channel response, a channel impulse response, a frequency response, and a phase distortion, estimate second channel state information of the channel by using a minimum mean square error channel estimation algorithm, wherein the second channel state information includes the first channel state information estimated by using the minimum mean square error channel estimation algorithm, perform vector cross multiplication on the first channel state information and the second channel state information to obtain third channel state information, feed the third channel state information back to a base station, and send it as a transmission signal of a base station sending a signal; Adjust transmission parameters through the information transmission control channel of the all-in-one antenna, the transmission parameters include modulation mode and coding rate, collect feedback signals from information receiving base stations, the feedback signal category is the same as the transmission signal category sent by the signal sending base station, and adjust the transmission power, spectrum allocation and scheduling strategy of the signal sending base station based on the feedback signal to adapt to channel conditions, the channel conditions include bandwidth, delay, utilization rate and delay-bandwidth product, and adapting to the channel conditions includes adjusting the transmission power, spectrum allocation and scheduling strategy to maximize the bandwidth of the channel, minimize the delay, maximize the utilization rate and minimize the delay-bandwidth product; Combining spatial multiplexing techniques with channel estimation information to optimize spectrum usage and cell configuration includes: The scheduling strategy of the wireless resources is optimized according to the third channel state information, wherein the scheduling strategy includes adjusting and monitoring the real-time performance of the wireless transmission, wherein the real-time performance includes data rate, delay and error rate.

6. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 5, characterized in that: The scheduling strategy for optimizing wireless resources according to the third channel state information includes: Using the third channel state information as a channel dependent variable parameter, encoding the cells of each virtual functional local area network, inputting the channel dependent variable parameter into a collaborative spectrum classification algorithm model, dynamically allocating spectrum resources, and evenly distributing broadband traffic among each cell and base station; Analyzing the real-time performance data and evaluating the effects of spatial multiplexing and channel estimation includes: respectively controlling to change only one real-time performance, adjusting the channel dependent variable parameter, observing the change of the real-time performance to obtain the optimal channel dependent variable parameter, and if the data rate increases, selecting the current first channel dependent variable parameter; If the delay is reduced, the current second channel dependent variable parameter is selected; If the error rate decreases, the current third channel dependent variable parameter is selected; Taking a weighted average of the first channel dependent variable parameter, the second channel dependent variable parameter and the third channel dependent variable parameter to obtain a fourth channel dependent variable parameter for optimal channel spectrum allocation, re-inputting the fourth channel dependent variable parameter into the collaborative spectrum classification algorithm model to obtain a new channel standard and a new transmission protocol sequence suitable for the channel standard; The channel standard includes the first channel state information, parameters of a spectrum channel and channel conditions.

7. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 6, characterized in that: The step S3 comprises: Transmitting signals according to the channel standard and transmission protocol obtained in step S2, randomly selecting any cell in each cell cluster to send data to the mobile base station, identifying the forward beam and the interference beam in the reverse direction by coordinating the direction of the transmitted signal according to the direction of the interference signal of other cells, and avoiding the interference beam, and shaping the forward beam includes the base station using a single directional wave when providing services to users; The loss value of the radio frequency signal of the forward wave is calculated using the free space path loss as the first loss value, and its mathematical expression is: Where d is the distance between the transmitter and the receiver in meters, f is the frequency of the signal in Hertz, and c is the speed of light, which is approximately 3×10 8 m / s; The loss value of the radio frequency signal of the feedback signal is calculated by using the free space path loss as the second loss value, the first loss value and the second loss value are vector-cross-multiplied to obtain the spatial loss value of the base station sending the signal, and the antenna position is planned according to the spatial loss value, including: The spatial loss value is input into a pre-trained support vector regression model, and the height, location node and placement angle of the multi-antenna are output. According to the new location planning of the multi-antenna, the optimal signal coverage area and network capacity are obtained.

8. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 7, characterized in that: The step S4 comprises: The function selection of the PCB board at the information transmitting end of the all-in-one antenna is determined by the signal category sent by the base station sending the signal and the required functions. The signal category includes the signal category that can be sent by the communication module on the PCB board, and the required functions include the functions of the radiation circuit, matching circuit and RF connector on the PCB board.

9. The smart factory wireless communication method based on the all-in-one antenna technology as claimed in claim 8, characterized in that: Use strong encryption algorithms to encrypt data to ensure the security of data during transmission, implement user authentication and device authentication mechanisms, use digital certificates and public key infrastructure (PKI), and use hash functions and message authentication codes (MAC) to verify received information to prevent unauthorized access and ensure the reliability of identity authentication and data integrity.

10. The intelligent factory wireless communication system based on all-in-one antenna technology is characterized by: Including intelligent production module, intelligent management module, intelligent design module and intelligent transmission module: The intelligent production module is used to produce the all-in-one antenna required by the user, and to embed a PCB board with multiple functions into the all-in-one antenna; The intelligent management module is used to manage and control the factory assembly line operation and the execution of the intelligent design module and the intelligent transmission module; The intelligent design module is used to initially plan the placement of the all-in-one antenna, and optimize the placement of the all-in-one antenna and the all-in-one antenna channel standard through an intelligent factory wireless communication method based on the all-in-one antenna technology; The intelligent transmission module is used to control the transmission and reception of the all-in-one antenna, collect all the transmission and reception data and hand them over to the intelligent design module for optimization calculation.

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