WIA-FA-based industrial gateway device and service method

Abstract

The application provides an industrial gateway device based on WIA-FA and a service method. The device comprises a wireless WIA-FA baseband processing unit, a wireless WIA-FA radio frequency remote unit and a bus hub transmission unit, and a single wireless WIA-FA baseband processing unit is connected with a plurality of wireless WIA-FA radio frequency remote units through the bus hub transmission unit. Clock synchronization is performed between the wireless WIA-FA baseband processing unit and the wireless WIA-FA radio frequency remote unit through a wired mode, and clock synchronization is performed between the wireless WIA-FA radio frequency remote unit and a network node through a wireless mode. The application improves the coverage range of the wireless signal, reduces the cost of the networking device, significantly improves the utilization rate of the device, makes the management of the wireless WIA-FA network more reasonable, and realizes the effective implementation of the domestic wireless network technology and protocol in various application scenarios.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial wireless network communication, in particular to an industrial gateway device based on WIA-FA and a service method. BACKGROUND

[0002] With the development of wireless network technology, foreign autonomous wireless network technology is constantly updated and applied, such as Wifi network, Zigbee network, LoraWan network and other wireless network technologies and protocols. Due to technical defects, the above wireless network technologies and protocols are prone to cause problems such as large transmission delay (hundreds of milliseconds of delay), low transmission reliability, low network capacity, no synchronization accuracy, and preemptive use of wireless resources. At the same time, due to the use of integrated wireless network management mode, distributed installation cannot be realized, which causes signal wiring loss, resulting in signal wall penetration and other shortcomings. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides an industrial gateway device based on WIA-FA and a service method. A wireless WIA-FA baseband processing unit is used as a data processing unit of a network device; a wireless WIA-FA radio remote unit is used as a wireless access device of a wireless WIA-FA network device for receiving data of a wireless WIA-FA node; and a bus hub transmission unit realizes the convergence of multiple wireless WIA-FA radio remote units and one wireless WIA-FA baseband processing unit. The combination of multiple radio remote units and one baseband processing unit increases the coverage range of wireless signals, reduces the cost of networking devices, improves the utilization rate of devices, more reasonably and effectively manages the entire wireless WIA-FA network, and also realizes the use of domestic wireless network technology and protocol in factory production workshops. It provides wireless data transmission and WIA-FA signal coverage for mobile controlled devices (such as AGV cars) in production workshops.

[0004] The technical means adopted by the present application are as follows:

[0005] An industrial gateway device based on WIA-FA, comprising a wireless WIA-FA baseband processing unit, a wireless WIA-FA radio remote unit, and a bus hub transmission unit, wherein a single wireless WIA-FA baseband processing unit is in communication connection with a plurality of wireless WIA-FA radio remote units through the bus hub transmission unit;

[0006] The wireless WIA-FA baseband processing unit comprises a WIA-FA protocol encoding and decoding module and a data distribution bus interface module, the WIA-FA protocol encoding and decoding module is used for encapsulating the transmission data based on the WIA-FA protocol and encoding the content of the transmission data, and the data distribution bus interface module is used for connecting the bus hub transmission unit to realize data transmission.

[0007] The wireless WIA-FA radio remote unit comprises a digital wireless low-pass filter demodulation module, a transceiving data processing module and a data distribution bus interface module, the digital wireless low-pass filter demodulation module is used for digitally low-pass filter demodulating data, the transceiving data processing module is used for managing data transceiving, and the data distribution bus interface module is used for connecting the bus hub transmission unit to realize data transmission.

[0008] Further, the WIA-FA protocol encoding and decoding module comprises a processor and a memory.

[0009] The processor is used for providing gateway service, encoding and decoding the received data, encapsulating the protocol data, and sending the protocol data to the data distribution bus interface module.

[0010] Further, the data distribution bus interface module is used for realizing correct WIA-FA data distribution and management by interacting data with different wireless WIA-FA radio remote units, including transmitting the data of the WIA-FA protocol encoding and decoding module to the bus hub transmission unit and transmitting the WIA-FA technology in the form of bus.

[0011] The data distribution bus interface module adopts an interface chip with interrupt state feedback.

[0012] Further, the low-pass filter adopted by the digital wireless low-pass filter demodulation module is a 33-order lp=fir(33,wn), and the corresponding 33-order filter coefficients are: {208,-94,128,487,880,1021,546,-746,-2620,-4289,-4566,-2298,3069,11072,20165,28121,32767,32767,28121,20165,11072,3069,-2298,-4566,-4289,-2620,-746,546,1021,880,487,128,-94,-208},

[0013] The demodulation filter output data fir_out=filter(lp,1,fir_data), wherein fir_data is the filtered data.

[0014] Further, the bus hub transmission unit has a mother board and an extension board, the mother board has eight extension ports, a data communication interface and an extension data interface; the extension data interface is connected with the data communication interface of the next mother board to realize extension data receiving and sending; the extension board is divided into a network port extension board and an optical port extension board to establish the connection between the wireless WIA-FA baseband processing unit and the plurality of wireless WIA-FA radio remote units.

[0015] The application further discloses a WIA-FA-based industrial gateway service method, which comprises the following steps:

[0016] S1: the wireless WIA-FA radio remote unit obtains the clock source synchronization of the wireless WIA-FA baseband processing unit through a wired mode, and the wireless WIA-FA baseband processing unit manages and controls the wireless WIA-FA radio remote units connected thereto;

[0017] S2: the wireless node obtains the clock source synchronization of the wireless WIA-FA radio remote unit through a wireless mode, and the wireless WIA-FA radio remote unit synchronously transmits node data information to the wireless WIA-FA baseband processing unit for management and control;

[0018] S3: after the wired and wireless time synchronization is completed, network data transmission is performed.

[0019] Further, the wireless WIA-FA baseband processing unit reads network configuration parameters, and the configuration parameters include time slots, a time slot table, a superframe length, wireless WIA-FA radio remote unit parameters and data transceiver server network information.

[0020] Further, the wireless WIA-FA radio remote unit obtains the clock source synchronization of the wireless WIA-FA baseband processing unit through a wired mode, and the method comprises the following steps:

[0021] The wireless WIA-FA baseband processing unit takes its own clock as the clock source of the synchronization clock, at each superframe time, a superframe data packet contains network synchronization time information, the synchronization time information includes time slots, a time slot number, a time slot table and a time stamp, the superframe data packet performs data transmission in the WIA-FA protocol and technology, the wireless WIA-FA radio remote unit obtains the time information in the superframe data packet, synchronizes the clock of the receiving unit, thereby realizing the clock synchronization of the wired network.

[0022] Further, the wireless node obtains the clock source synchronization of the wireless WIA-FA radio remote unit through a wireless mode, and the method comprises the following steps:

[0023] The wireless WIA-FA radio remote unit sends a broadcast frame according to the received synchronization clock information at the wireless superframe time, and the broadcast frame contains synchronization time information of the network, including time slot, time slot number, time slot table and time stamp, so as to realize the clock synchronization source of the wireless network, thereby realizing the clock synchronization of the wired and wireless networks.

[0024] Further, the trigger timing of the method is that the network interface chip of the wireless WIA-FA baseband processing unit receives the first byte of user data or protocol data, at this time, the local time of the wireless WIA-FA baseband processing unit is calibrated with the time in the broadcast frame of the protocol, so as to realize the clock synchronization.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] 1. The present application provides a set of independent wireless network equipment, realizes the entity of domestic wireless network WIA-FA technology and protocol, so as to realize that the transmission delay is less than 10 milliseconds, the time synchronization accuracy is less than 10 microseconds when the transmission reliability of 100-point network is 99.99%, and the wireless resources are reasonably planned and distributed.

[0027] 2. The present application adopts the wireless WIA-FA baseband processing unit and the wireless WIA-FA radio remote unit, realizes the distributed installation, avoids the wiring loss of the signal, avoids the defect that the signal cannot be covered when passing through the wall, and improves the application of the independent wireless network technology of our country in the secret scene. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0029] Figure 1 It is a structure schematic diagram of an industrial gateway device based on WIA-FA.

[0030] Figure 2 It is a schematic diagram of a wireless WIA-FA baseband processing unit.

[0031] Figure 3 It is a schematic diagram of a wireless WIA-FA radio remote unit.

[0032] Figure 4 It is a schematic diagram of a method flow of a wireless WIA-FA baseband processing unit.

[0033] Figure 5A wireless WIA-FA radio remote unit method flowchart of the present application.

[0034] Figure 6 A 10-level quantization corresponding graph

[0035] Figure 7 An embodiment demodulation filter diagram.

[0036] Figure 8 An embodiment time slot table diagram. DETAILED DESCRIPTION

[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] As Figure 1 shown, the present application provides a WIA-FA-based industrial gateway device, comprising a wireless WIA-FA baseband processing unit, a wireless WIA-FA radio remote unit, and a bus hub transmission unit. The wireless WIA-FA baseband processing unit transmits data to the bus hub transmission unit through a bus interface module, the bus hub transmission unit distributes the data to the wireless WIA-FA radio remote unit through an expansion board, thereby realizing data distribution; and vice versa for data reception.

[0039] As Figure 2 shown, the present application provides a WIA-FA-based industrial gateway device, comprising a wireless WIA-FA baseband processing unit, a wireless WIA-FA radio remote unit, and a bus hub transmission unit. The wireless WIA-FA baseband processing unit transmits data to the bus hub transmission unit through a bus interface module, the bus hub transmission unit distributes the data to the wireless WIA-FA radio remote unit through an expansion board, thereby realizing data distribution; and vice versa for data reception.

[0040] Specifically, the working flow of the wireless WIA-FA baseband processing unit mainly includes a parameter configuration step, a synchronous clock generation step, a listening step and a data processing step. First, the parameter configuration step is executed. The wireless WIA-FA baseband processing unit reads network configuration parameters, obtains a time slot, a time slot table, a superframe length, wireless WIA-FA radio remote unit parameters, WIA-FA network access parameter information and data transceiver server network information. Second, the unit obtains a start transmission data flag through a hardware interrupt generated by a network interface, and distinguishes the listened data according to a protocol. The data is user data or WIA-FA protocol data, and the data protocol processing is performed. Then, the synchronous clock generation step is executed. The wireless WIA-FA baseband processing unit uses a clock of the unit as a clock source of a synchronous clock, obtains synchronous clock information of the clock source at a superframe time, and sends the synchronous clock information in a form of a broadcast frame through a bus. The broadcast frame contains network synchronous time information, such as a time slot, a time slot number, a time slot table and a time stamp, so as to realize clock synchronization of the wired network. Subsequently, the data processing step is executed. The wireless WIA-FA baseband processing unit manages and configures the state and data of the received wireless WIA-FA radio remote unit data, and distributes the data to a corresponding server address.

[0041] Figure 3 Figure 1 is a schematic diagram of the wireless WIA-FA radio remote unit of the present application. The wireless WIA-FA radio remote unit has a digital wireless low-pass filter demodulation module, a data processing module, an encryption module and a bus interface module. The bus interface module exchanges data with an expansion board of the bus hub transmission unit, and the other end is connected with the data processing module. The digital wireless low-pass filter demodulation module exchanges data with the data processing module through a data line, realizes conversion of WIA-FA data from electrical signal data to wireless electromagnetic wave signal data, realizes conversion of wireless data to electrical signal data, and performs encryption and decryption processing on the electrical signal data.

[0042] As a preferred embodiment of the present application, the low-pass filter used by the digital wireless low-pass filter demodulation module is a 33-order lp=fir(33,wn), and the corresponding 33-order filter coefficient is {208,-94,128,487,880,1021,546,-746,-2620,-4289,-4566,-2298,3069,11072,20165,28121,32767,32767,28121,20165,11072,3069,-2298,-4566,-4289,-2620,-746,546,1021,880,487,128,-94,-208}. The demodulation filter output data (such as Figure 7The demodulation filter diagram shown) fir_out = filter (lp, 1, fir_data), fir_data is the filtered data Figure 7 The acceptance data in the demodulation judgment threshold is the data signal + carrier signal + noise clutter);The filter factor K collected by A / D is used as the filter output of the demodulation judgment threshold, which is corrected by adjusting the external adjustable potentiometer (for example, when the noise is 1 quantization unit, K = 0.35, and the adjustment condition is the strength of the external interference noise signal, 10-level quantization corresponds to Figure 6 ), and the ratio of fir_out and K obtains the final digital low-pass filter demodulation data Figure 7 The filter factor-data in the demodulation judgment threshold, and the digital low-pass filter demodulation data is consistent with the sending data.

[0043] Specifically, the working process of the wireless WIA-FA remote radio unit mainly includes a node listening step, a wireless clock synchronization step and a node task execution step. First, the node listening step is executed. The number of wireless WIA-FA remote radio units is listened to, and when a wireless WIA-FA remote radio unit is added, the task resource of the wireless WIA-FA remote radio unit is created. Second, the wireless clock synchronization step is executed. After the wired clock synchronization is completed, the local clock source is used as the clock source of the wireless WIA-FA remote radio unit, a wireless synchronization clock source is generated, and the wireless broadcast frame is sent at the same time whenever the time comes. The broadcast frame contains the synchronization time information of the network, including the time slot, the time slot number, the time slot table and the timestamp, realizes the clock synchronization source of the wireless network, and thus realizes the clock synchronization of the wired and wireless networks. Then, the node task is executed. The node in the application is the last data acquisition terminal of the wireless network. The WIA-FA wireless network parameters of the node are initialized, the node time slot is waited, the WIA-FA node transceiver data state is monitored, the data exchange operation with the wireless WIA-FA baseband processing unit is completed, the data exchange between the wireless WIA-FA baseband processing unit and the wireless WIA-FA remote radio unit is realized, and the incoming and outgoing data is encrypted and decrypted.

[0044] The bus hub transmission unit is composed of a mother board and an expansion board, and the expansion board is divided into a network port expansion board and an optical port expansion board. It is used to receive and process the data of the wireless WIA-FA baseband processing unit through the mother board, and distribute it to the corresponding expansion board, realize error-free distribution of data, and is the bridge of data distribution between the wireless WIA-FA baseband processing unit and the wireless WIA-FA remote radio unit.

[0045] Specifically, the mother substrate has eight expansion ports and a data communication interface, an expansion data interface, wherein the expansion data interface is connected with the data communication interface of the next mother substrate to realize expansion data receiving and sending. The expansion board is divided into a network port expansion board and an optical port expansion board, and is a transmission bridge connecting the wireless WIA-FA baseband processing unit and the wireless WIA-FA radio remote unit, and simultaneously supports multiple wireless WIA-FA radio remote unit access.

[0046] The working principle of the WIA-FA industrial gateway device is as follows:

[0047] When the WIA-FA and multi-access point equipment networking is carried out in a factory workshop, a set of WIA-FA gateway (one wireless WIA-FA baseband processing unit, two wireless WIA-FA radio remote units, one bus hub transmission unit using one mother substrate, one optical expansion board and one network optical expansion board) and two nodes are used to establish a network, the wireless WIA-FA baseband processing unit is connected with the data interface of the bus hub transmission unit of the mother substrate; the expansion board is plugged into the mother substrate; the expansion board is connected with the wireless WIA-FA radio remote unit through a lead; 64 time slots are used for time slot division in the software, and the time slot division is as shown in Figure 8 .

[0048] The wireless WIA-FA baseband processing unit sends a broadcast frame through the bus hub transmission unit, so that two wireless WIA-FA radio remote units obtain their own synchronization time information and time slot table, and time synchronization between the two wireless WIA-FA radio remote units and the wireless WIA-FA baseband processing unit is completed. When the wireless WIA-FA radio remote unit completes wired time synchronization, the wireless WIA-FA radio remote unit converts the broadcast frame into a wireless broadcast frame, two nodes receive the wireless broadcast frame, synchronization of the wireless WIA-FA wireless node is completed, and finally wired and wireless WIA-FA network synchronization is realized. The broadcast frame is issued once every 64 time slots, and contains a network protocol synchronization broadcast frame. The broadcast frame contains network synchronization time information, including time slot, time slot number, time slot table and timestamp. The bus hub transmission unit obtains data of the wireless WIA-FA baseband processing unit and then transmits the data to different wireless WIA-FA radio remote units through the bus. The bus hub transmission unit supports wired transmission or optical fiber transmission. The wireless WIA-FA radio remote unit obtains data of the bus hub transmission unit, receives the broadcast frame, realizes wired network synchronization through broadcast frame data, and generates a wireless synchronization clock after wired clock synchronization of the wireless WIA-FA radio remote unit is completed. The wireless synchronization clock is generated every time the broadcast wireless superframe moment is launched, clock source data is obtained, and is sent out in the broadcast frame. The broadcast frame contains network synchronization time information, including time slot, time slot number, time slot table and timestamp, realizes the source of wireless network clock synchronization, and thus realizes wired and wireless network clock synchronization. After clock synchronization is completed, data service is entered, and nodes, the wireless WIA-FA baseband processing unit and the wireless WIA-FA radio remote unit perform data transmission and reception according to the time slot table.

[0049] The application further discloses a WIA-FA-based industrial gateway service method, which comprises the following steps:

[0050] S1: The wireless WIA-FA radio remote unit obtains clock source synchronization of the wireless WIA-FA baseband processing unit through a wired mode. The wireless WIA-FA baseband processing unit manages and controls the wireless WIA-FA radio remote units connected thereto. Specifically, the wireless WIA-FA baseband processing unit takes its own clock as a clock source of a synchronization clock. When the superframe moment is launched each time, a superframe data packet contains network synchronization time information, the synchronization time information comprising time slot, time slot number, time slot table and timestamp. The superframe data packet performs data transmission in a WIA-FA protocol and technology. The wireless WIA-FA radio remote unit obtains time information in the superframe data packet, synchronizes the clock of the receiving unit, and thus realizes wired network clock synchronization.

[0051] S2: the wireless node synchronizes with the clock source of the wireless WIA-FA radio remote unit through wireless means, and the wireless WIA-FA radio remote unit synchronously transmits the node data information to the wireless WIA-FA baseband processing unit for management and control. Specifically, the wireless WIA-FA radio remote unit sends a broadcast frame according to the received synchronization clock information at the wireless superframe time, and the broadcast frame contains the synchronization time information of the network, including the time slot, the time slot number, the time slot table, and the time stamp, so as to realize the clock synchronization source of the wireless network, thereby realizing the clock synchronization of the wired and wireless networks.

[0052] S3: after the wired and wireless time synchronization is completed, the network data transmission is performed.

[0053] Further, the service method further comprises: reading the network configuration parameters by the wireless WIA-FA baseband processing unit, and the configuration parameters include the time slot, the time slot table, the superframe length, the wireless WIA-FA radio remote unit parameter, and the data transceiver server network information.

[0054] Further, the service method realizes the clock synchronization together with the hardware, the hardware interrupt is triggered by the WIA-FA baseband processing unit network interface chip (the chips are WGI210 and WGI211 of the WGI21 series of chips) to accept the first byte of the user data or the protocol data, so as to call the method; and the method acquires the local time as the calibration time, and calibrates the time in the broadcast frame of the protocol, so as to realize the high synchronization of the clock.

[0055] As shown in Figure 4 The wireless WIA-FA baseband processing unit working flow of the application is shown in the figure, which is used for realizing the data management and the network synchronization clock core management, and comprises a parameter configuration thread 1, a synchronization clock generation thread 2, a wireless WIA-FA baseband processing unit listening thread 3, and a wireless WIA-FA baseband processing unit thread 4. Specifically, the following steps are included:

[0056] 1. initializing the interface command, and the processor initializes the IP address, the data protocol type, and the network service address according to the starting needs.

[0057] 2. reading the network configuration parameters, acquiring the time slot, the time slot table, the superframe length, the wireless WIA-FA radio remote unit parameter, and the WIA-FA network access parameter information, and the data transceiver server network information, and performing the parameter configuration.

[0058] 3, execute parameter configuration thread 1, read the configuration data part of the data information initialization thread 1's data parameter, and initialize the network parameters and transmission mode in the bus interface module, the IP address and port used for data forwarding;The other part of the data obtained is used to initialize thread 2, which realizes the initialization of the synchronous clock, i.e. the data of time slot, time slot table and superframe length.

[0059] 4, execute synchronization clock generation thread 2, initialize WIA-FA key information word, obtain hardware clock data, create network clock source, encapsulate broadcast frame, including time slot, time slot table, timestamp, superframe length data, update all data information in broadcast frame when each time slot reaches broadcast frame.

[0060] 5, execute wireless WIA-FA radio remote unit listening thread 3, listen to wireless WIA-FA radio remote unit joining, create wireless WIA-FA radio remote unit task resource, i.e. create thread 4;

[0061] 6, execute wireless WIA-FA radio remote unit thread 4, execute specific task work, which initializes the wireless parameter information of WIA-FA, such as channel, frequency point, time slot, and obtains time slot table, simultaneously listens to the uplink and downlink data of the node, and performs data receiving and transmitting task through the parameters of thread 1 corresponding to IP and port.

[0062] Figure 5 It is the wireless WIA-FA radio remote unit method working process of the application. It is used for the process of existing wired clock synchronization to wireless time slot, and realizes the interaction of wireless data and wired data. It includes wired clock synchronization thread 1, creates wireless clock source thread 2, listens to joining node thread 3, and creates node task thread 4. It specifically includes the following steps:

[0063] 1, initialize interface command, the processor initializes IP address, data protocol type, connection service IP address and port according to the starting requirement.

[0064] 2, open configuration file command, read the configuration file of the device, so as to obtain network protocol, i.e. wired network IP protocol and port parameter.

[0065] 3, listen to wired broadcast frame, initialize WIA-FA parameter, configure the working parameter of wireless network, the working channel and the working time slot LINK, the time slot LINK is the window period of radio frequency processing module for receiving and transmitting data, and the size of the window period is determined by the time slot length of the configuration parameter.

[0066] 4, execute WIA-FA network wired real-time synchronization clock source thread 1: real-time obtain the data information of broadcast frame, calibrate the local clock source, and update the time slot table.

[0067] 5. Perform WIA-FA network wireless clock source thread 2: when thread 1 implements wired network clock synchronization to complete and calibrates the local clock, create data in the wireless broadcast frame through the local clock source, including channel, frequency point, time slot, time slot table data information, and update these data information in real time through the wired network data.

[0068] 6. Perform WIA-FA node monitoring thread 3: monitor the status of the entire device node, when a new node device is added, create a node task management thread for it, implement node task creation and closing, and thus create thread 4.

[0069] 7. Perform WIA-FA task management thread 4: initialize the wireless network parameters of the WIA-FA of the node, wait for the node time slot to arrive, complete monitoring of the WIA-FA node transceiving data state, and perform data exchange operation with the wireless WIA-FA baseband processing unit, implement data exchange of the wireless WIA-FA baseband processing unit and the wireless WIA-FA radio remote unit, and perform encryption and decryption on the data.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A WIA-FA based industrial gateway device, characterized by, The wireless WIA-FA baseband processing unit, the wireless WIA-FA radio remote unit and the bus hub transmission unit are included, a single wireless WIA-FA baseband processing unit is connected with several wireless WIA-FA radio remote units through the bus hub transmission unit, and the wireless WIA-FA radio remote unit is wirelessly connected with a communication node; The wireless WIA-FA baseband processing unit includes a WIA-FA protocol encoding and decoding module and a data distribution bus interface module, the WIA-FA protocol encoding and decoding module is used for encapsulating transmission data based on the WIA-FA protocol and encoding the content of the transmission data, and the data distribution bus interface module is used for connecting the bus hub transmission unit to realize data transmission; The wireless WIA-FA radio remote unit includes a digital wireless low-pass filter demodulation module, a transceiving data processing module and a data distribution bus interface module, the digital wireless low-pass filter demodulation module is used for digital low-pass filter demodulation of data, the transceiving data processing module is used for data transceiving management, and the data distribution bus interface module is used for connecting the bus hub transmission unit to realize data transmission.

2. The WIA-FA based industrial gateway device according to claim 1, wherein, The WIA-FA protocol encoding and decoding module includes a processor and a memory; The processor is used for providing a gateway service, encoding and decoding received data, encapsulating the protocol data, and sending the protocol data to the data distribution bus interface module.

3. The WIA-FA based industrial gateway device according to claim 1, wherein, The data distribution bus interface module is used for realizing correct WIA-FA data distribution and management by interacting data with different wireless WIA-FA radio remote units, including transmitting data of the WIA-FA protocol encoding and decoding module to the bus hub transmission unit and transmitting the WIA-FA technology in the form of a bus; The data distribution bus interface module adopts an interface chip with interrupt state feedback.

4. The WIA-FA based industrial gateway device of claim 1, wherein, The low-pass filter adopted by the digital wireless low-pass filter demodulation module is 33 lp = fir(33,wn), and the corresponding 33 filter coefficients are: {208,-94,128,487,880,1021,546,-746,-2620,-4289,-4566,-2298,3069,11072,20165,28121,32767,32767,28121,20165, 11072,3069,-2298,-4566,-4289,-2620,-746,546,1021,880,487,128,-94,-208}， The demodulation filter output data fir_out = filter(lp,1,fir_data), wherein fir_data is the filtered data.

5. The WIA-FA based industrial gateway device according to claim 1, wherein, The bus hub transmission unit has a mother board and an expansion board, the mother board has eight expansion ports, a data communication interface and an expansion data interface; wherein the expansion data interface is connected with the data communication interface of the next mother board to realize expansion data receiving and sending; and the expansion board is divided into a network port expansion board and an optical port expansion board to establish the connection between the wireless WIA-FA baseband processing unit and the multiple wireless WIA-FA radio remote units.

6. A WIA-FA based industrial gateway service method applied to the WIA-FA based industrial gateway device of any one of claims 1-5, characterized in that, The method includes the following steps: S1: the wireless WIA-FA radio remote unit acquires the clock source synchronization of the wireless WIA-FA baseband processing unit through a wired mode, and the wireless WIA-FA baseband processing unit manages and controls the wireless WIA-FA radio remote unit connected thereto; S2: the wireless node acquires the clock source synchronization of the wireless WIA-FA radio remote unit through a wireless mode, and the wireless WIA-FA radio remote unit synchronously transmits node data information to the wireless WIA-FA baseband processing unit for management and control; S3: after the wired and wireless time synchronization is completed, network data transmission is performed.

7. The WIA-FA-based industrial gateway service method of claim 6, wherein, Further comprising: reading network configuration parameters by the wireless WIA-FA baseband processing unit, the configuration parameters including time slots, a time slot table, a superframe length, wireless WIA-FA radio remote unit parameters and data transceiver server network information.

8. The WIA-FA-based industrial gateway service method of claim 6, wherein, The wireless WIA-FA radio remote unit acquires the clock source synchronization of the wireless WIA-FA baseband processing unit through a wired mode, comprising: The wireless WIA-FA baseband processing unit takes its own clock as the clock source of the synchronization clock, and each time the superframe time is started, the superframe data packet contains the synchronization time information of the network, the synchronization time information including time slots, a time slot number, a time slot table and a time stamp, the superframe data packet performs data transmission in the WIA-FA protocol and technology, the wireless WIA-FA radio remote unit acquires the time information in the superframe data packet, synchronizes the clock of the receiving unit, and thus realizes the clock synchronization of the wired network.

9. The WIA-FA-based industrial gateway service method of claim 6, wherein, The wireless node acquires the clock source synchronization of the wireless WIA-FA radio remote unit through a wireless mode, comprising: The wireless WIA-FA radio remote unit sends a broadcast frame at the wireless superframe time according to the received synchronization clock information, the broadcast frame containing the synchronization time information of the network, including time slots, a time slot number, a time slot table and a time stamp, realizing the source of the clock synchronization of the wireless network, and thus realizing the clock synchronization of the wired and wireless networks.

10. The WIA-FA-based industrial gateway service method of claim 6, wherein, The triggering occasion of the method is that the network interface chip of the wireless WIA-FA baseband processing unit receives the first byte of user data or protocol data, at this time, the local time of the wireless WIA-FA baseband processing unit is calibrated with the time in the protocol broadcast frame, and thus the clock synchronization is realized.

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