Industrial wireless communication method, slave station equipment and system

Abstract

The invention discloses an industrial wireless communication method, slave station equipment and an industrial wireless communication system. The method is applied to slave station equipment, and comprises the following steps: when an instruction of ending wireless communication sent by bound first master station equipment is received, switching the own state from a busy hour state to an idle hour state according to the instruction of ending wireless communication, and releasing the binding relationship with the first master station equipment; and in the idle time state, if an instruction for establishing communication connection sent by the second master station equipment is received, establishing communication connection with the second master station equipment, binding with the second master station equipment, switching the own state from the idle time state to the busy time state, and periodically communicating with the second master station equipment. According to the invention, rematching of the master station and the slave station in operation can be realized, so that the application scene of a wireless system is more flexible, and the method is more suitable for a streamline multifunctional multiplexing scene.

Description

Technical Field

[0001] The present invention relates to the field of industrial control technology, and in particular to an industrial wireless communication method, slave station equipment and system. Background Art

[0002] In the 2.4GHz wireless communication control system in the industrial field, master-slave communication is often used, that is, a master station device exchanges information with multiple slave station devices and participates in control. When setting up a wireless system, it is necessary to pre-set the matching relationship between the master station device and the slave station device. After setting, the matching relationship and topology structure remain fixed during normal operation.

[0003] With the rise of the concept of digital factories, the demand for flexible factories and flexible production lines is increasing. As a necessary part of the realization of digital factories, wireless systems cannot maximize the variability and flexibility of wireless systems due to the binding of master-slave relationships in actual applications. For example, in some application scenarios, slave devices tend to move, that is, they will be farther and farther away from the original master devices. In order to achieve reliable control, it is necessary to further increase master devices and / or slave devices, resulting in an increase in industrial control costs. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide an industrial wireless communication method, slave station device and system that overcome the above problems or at least partially solve the above problems.

[0005] In a first aspect, an embodiment of the present invention provides an industrial wireless communication method, which is applied to a slave device, and the method includes:

[0006] When receiving an instruction to terminate wireless communication sent by the bound first master station device, according to the instruction to terminate wireless communication, switching its own state from the busy state to the idle state, and releasing the binding relationship with the first master station device;

[0007] In the idle state, if an instruction to establish a communication connection is received from the second master station device, a communication connection is established with the second master station device, the device is bound to the second master station device, and its own state is switched from the idle state to the busy state, and the device communicates periodically with the second master station device.

[0008] In one embodiment, before receiving the instruction to end the communication sent by the bound first master station device, the method further includes:

[0009] Receive a request for establishing a wireless communication connection from the first master station device, authenticate the first master station device based on the registration information of the master station device stored in itself, and if the authentication is successful, establish a wireless communication connection with the first master station device, bind the first master station device, and perform periodic communication with the first master station device.

[0010] In one embodiment, the industrial wireless communication method further includes:

[0011] Pre-configuring each slave device with the number information of the master device to which the slave device is allowed to connect, the partition information of the corresponding communication channel, the identification information and the priority information;

[0012] Generate a registration information table according to the number information of the configured master station device, the partition information, identification information and priority information of the corresponding communication channel, and save it in the slave station device;

[0013] In the registration information table, the partitions of the communication channels corresponding to different master station devices are different and have no intersection with each other;

[0014] For each master station device, the numbers of slave station devices that the master station device allows to communicate and the corresponding communication channel partition information are configured in advance; registration information is generated and saved in the master station device based on the numbers of slave station devices that the configured master station device allows to communicate and the corresponding communication channel partition information.

[0015] In one embodiment, after the step of receiving the instruction to establish a communication connection sent by the second master station device and before the step of establishing a communication connection with the second master station device, the method further includes:

[0016] Authenticating the second master station device, and when the authentication is passed, turning to the step of establishing a communication connection with the second master station device;

[0017] The authenticating the second master station device includes:

[0018] Parsing the instruction for establishing a communication connection sent by the second master station device, extracting the identification information of the slave station device and the information of the master station device number, and the information of the channel for receiving the instruction for establishing a communication connection;

[0019] Determine whether the extracted identification information of the slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master device;

[0020] If the judgment results are all yes, it is confirmed that the second master station device has passed the authentication.

[0021] In one embodiment, establishing a communication connection with the second master station device includes:

[0022] Use the channel information corresponding to the second master station device in the registration information table to establish a communication connection with the second master station device, and use the communication cycle T2 to periodically communicate with the second master station device.

[0023] In one embodiment, after the step of switching the state of the device from the busy state to the idle state and releasing the binding relationship with the first master station device, the step further includes:

[0024] The wireless signal is received through all channels, and the communication period for receiving the wireless signal is T1, which is much greater than T2.

[0025] In one embodiment, the industrial wireless communication method further includes:

[0026] When the slave device is turned on, it adopts the default idle state and receives wireless signals through the preset full channel, and the period of receiving the signal is T1;

[0027] If a connection request from the first master station is received, the instruction for establishing a communication connection sent by the first master station device is parsed to extract the identification information of the slave station device and the information of the master station device number carried therein, as well as the information of the receiving channel of the instruction for establishing a communication connection;

[0028] Determine whether the extracted identification information of the slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master device;

[0029] If the judgment results are all yes, confirm that the authentication of the first master station device is passed, and establish a communication connection with the first master station device; update its own status from idle status to busy status, bind to the first master station device, and communicate periodically with the first master station device through the communication channel corresponding to the first master station device.

[0030] In a second aspect, an embodiment of the present invention provides a slave station device, including:

[0031] A receiving module, configured to receive an instruction to end wireless communication sent by the bound first master station device; and to receive an instruction to establish a communication connection sent by the second master station device when the slave station device is in an idle positioning state;

[0032] A state switching module is used for switching the state of the slave device from a busy state to an idle state to release the binding relationship with the first master device when the receiving module receives the instruction to end the wireless communication sent by the first master device; and switching the state of the slave device from an idle state to a busy state when the receiving module receives the instruction to establish the communication connection;

[0033] The communication module is used for periodically communicating with the second master station device when the state switching module switches the state of the slave station device from the idle state to the busy state.

[0034] In a third aspect, an embodiment of the present invention provides a slave station device, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the aforementioned industrial wireless communication method when executing the program.

[0035] In a fourth aspect, an embodiment of the present invention provides an industrial wireless communication control system, comprising: a master station device and a slave station device as described above;

[0036] The master station device is used to send an instruction to end wireless communication to a slave station device that no longer needs communication and to release the binding relationship with the slave station device; and to send an instruction to establish a communication connection to a slave station device that needs communication.

[0037] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the aforementioned industrial wireless communication method is implemented.

[0038] The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

[0039] The industrial wireless communication method, slave station device and system provided by the embodiments of the present invention, when the slave station device receives an instruction from the bound first master station device to end wireless communication, it switches to an idle state according to the instruction to end wireless communication, and then if it receives an instruction from the second master station device to establish a communication connection, it switches to the second master station device to establish a communication connection with it. The embodiments of the present invention can achieve re-matching of the running master station and slave station, making the application of the wireless communication system in the industrial control scenario more flexible and more applicable in the scenario of multi-function multiplexing of the assembly line.

[0040] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0041] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 A flowchart of an industrial wireless communication method provided by an embodiment of the present invention;

[0044] Figure 2 A flowchart of authenticating a second master station device provided by an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of a slave station 1 switching from a master station 1 to a master station 2 in an example provided in an embodiment of the present invention;

[0046] Figure 4 The flowchart of the example provided in the embodiment of the present invention is that the slave station 1 switches from the master station 1 to the master station 2. DETAILED DESCRIPTION

[0047] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0048] In order to solve the problem in the prior art that the matching relationship and topology structure cannot be flexibly updated after the master station device and the slave station device are bound, an embodiment of the present invention provides an industrial wireless communication method, a slave station device and a system.

[0049] In an embodiment of the present invention, each master station device can be bound to multiple slave station devices and communicate wirelessly with them. Correspondingly, each slave station device can also communicate with one master station device and communicate wirelessly with it. It can also switch to other master station devices and update the binding relationship with it after the master station device no longer needs to communicate wirelessly with it, and communicate wirelessly with other master station devices to meet the corresponding industrial control scenario requirements.

[0050] In the embodiment of the present invention, for the convenience of explanation, the device to which the slave device is previously bound and performs wireless communication is referred to as the first master device, and the device to which the slave device is bound and performs wireless communication after the change is referred to as the second master device.

[0051] The embodiment of the present invention provides an industrial wireless communication method. For a slave device, refer to Figure 1 As shown, the method comprises the following steps:

[0052] S11, when receiving an instruction to terminate wireless communication sent by the bound first master station device, according to the instruction to terminate wireless communication, switching its own state from the busy state to the idle state, and releasing the binding relationship with the first master station device;

[0053] S12. In the idle state, if an instruction to establish a communication connection is received from the second master station device, a communication connection is established with the second master station device, the second master station device is bound, and the state of the device is switched from the idle state to the busy state, and the second master station device is periodically communicated.

[0054] In one embodiment, the slave station device may establish a communication connection with the first master station device in the following manner, for example:

[0055] Receive a request for establishing a wireless communication connection from the first master station device, authenticate the first master station device based on the registration information of the master station device stored in itself, and if the authentication is successful, establish a wireless communication connection with the first master station device, bind the first master station device, and perform periodic communication with the first master station device.

[0056] For both the master device and the slave device, corresponding registration information is stored. The registration information of the master device includes the numbering information of the master device itself, the partitioning information of the corresponding channel, and the identification information of the slave devices that are allowed to communicate (need to communicate).

[0057] For the slave device, the registration information includes the number information of the master device that is allowed to communicate (needs to communicate), the channel partition information, the identification information of the master and the priority information.

[0058] The registration information in the master device and the registration information in the slave device can be generated and stored in each master device and each slave device, for example, in the following manner:

[0059] Configure in advance for each slave device the number information of the master device to which the slave device is allowed to connect, the partition information of the corresponding communication channel, the master identification information and the priority information;

[0060] Generate a registration information table according to the number information of the configured master station device, the partition information, identification information and priority information of the corresponding communication channel, and save it in the slave station device;

[0061] In the registration information table, the partitions of the communication channels corresponding to different master station devices are different and have no intersection with each other;

[0062] Pre-configuring each master station device with the number of slave stations that the master station device allows to communicate, and corresponding communication channel partition information;

[0063] According to the numbers of slave devices that the configured master device allows to communicate and the corresponding communication channel partition information, registration information is generated and stored in the master device.

[0064] In one embodiment, in the above step S12, after the step of receiving the instruction to establish a communication connection sent by the second master station device and before the step of establishing a communication connection with the second master station device, the above step may also authenticate the second master station device, and only when the authentication is passed, turn to the step of establishing a communication connection with the second master station device;

[0065] Specifically, the above authentication of the second master station device refers to Figure 2 As shown, this can be achieved through the following process:

[0066] S21, parsing the instruction for establishing a communication connection sent by the second master station device, extracting the identification information of the slave station device and the information of the master station device number, and the information of the channel for receiving the instruction for establishing a communication connection;

[0067] S22. Determine whether the identification information of the extracted slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master station device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master station device; if the judgment results are all yes, go to step S23; otherwise, execute step S24 and the authentication fails.

[0068] S23, confirm that the second master station device has passed the authentication.

[0069] If any of the items in the above step S22 is negative, that is, the authentication fails, the instruction to establish the communication connection is discarded, and the communication connection is not established with the master station device.

[0070] Specifically, in the above step S12, the slave station device uses the channel information corresponding to the second master station device in the registration information table to establish a communication connection with the second master station device, and uses the communication cycle T2 to periodically communicate with the second master station device.

[0071] Furthermore, after the above-mentioned slave station device switches its own state from a busy state to an idle state and releases the binding relationship with the first master station device, it can continue to switch to receiving wireless signals through the entire channel, and the communication cycle for receiving wireless signals is T1, where the size of T1 can be much larger than T2, for example.

[0072] If the device switches to the idle state and no master device initiates a communication connection, the idle state will continue.

[0073] For the slave device, when the slave device is turned on, it first adopts the default idle state and receives wireless signals through the preset full channel, and the period of receiving the signal is T1 (T1 can be much greater than T2);

[0074] If a connection request from the first master station is received, the instruction for establishing a communication connection sent by the first master station device is parsed to extract the identification information of the slave station device and the information of the master station device number carried therein, as well as the information of the receiving channel of the instruction for establishing a communication connection;

[0075] Determine whether the extracted identification information of the slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master device;

[0076] If the judgment results are all yes, it is confirmed that the authentication of the first master station device is passed, and a communication connection is established with the first master station device; its own state is updated from the idle state to the busy state, and it is bound to the first master station device, and periodic communication is performed with the first master station device through the communication channel corresponding to the first master station device.

[0077] If any of the judgment results is not yes, the communication connection request is discarded.

[0078] The following is an example to illustrate.

[0079] Reference Figure 3 As shown, the example includes a wireless system 1 and a wireless system 2. The wireless system 1 has a master station 1, a slave station 1 and a slave station 2, and controls slave station devices such as slave station 1 and slave station 2. The wireless system 2 has a master station 2, a slave station 3 and a slave station 4. The master station 2 controls slave station devices such as slave station 3 and slave station 4.

[0080] Reference Figure 3 As shown, both master station 1 and master station 2 are configured with registration information, which includes relevant information of the slave station to be controlled, such as slave station ID, channel partition corresponding to the master station communication, and master station number (CH) information, etc. The slave station is also configured with corresponding registration information, including the number (CH) of the registered master station, channel partition information corresponding to the master station, channel partition corresponding to the master station, master station ID, master station priority information, etc.

[0081] When building a wireless system, first pre-set the priorities and channel partitions for the master station and slave stations.

[0082] When powered on, the slave station defaults to Idle state, receiving wireless signals on all channels with a receiving cycle of T1.

[0083] The master sends data with the registered CH and slave ID. When the slave receives the communication request from the master, it compares the slave registration table. If the parameters match the channel, it processes the data, otherwise it discards it.

[0084] If the slave station is in idle state, it establishes a communication connection with the master station and changes its state to busy. Set up a communication channel and perform periodic communication with the master station in T2 cycle.

[0085] Slave station 1 will dynamically switch between wireless system 1 and wireless system 2 according to on-site requirements.

[0086] When slave 1 switches to wireless system 2, the process is as follows:

[0087] ① When the master station 1 ends the communication with the slave station 1, the master station 1 sends an Idle command to the slave station 1. The current master station 1 registers its own number as CH=2, and the communication channel ranges from ch1 to ch10, using the frequency hopping method (Frequency-Hopping Spread Spectrum, FHSS).

[0088] ② After receiving the Idle instruction, slave 1 switches its communication state to Idle, the communication cycle is T1, the communication channel range is ch1~ch79, and FHSS is also used.

[0089] ③Slave 1 receives the connection establishment request from master 2, searches the slave registration list, finds the master 2 information, and switches to register with master 2. The master 2 is numbered as CH=3, and the communication channel ranges from ch11 to ch20. FHSS is also used, and the slave switches from the Idle state to the Busy state. Communication cycle T2.

[0090] ④ When the slave station does not find the master station information in its own registration list, the slave station maintains the Idle state unchanged.

[0091] The value of T1 mentioned above is much larger than the value of T2.

[0092] Based on the same inventive concept, an embodiment of the present invention also provides a slave station device and an industrial wireless communication control system. Since the principles of solving the problems by these devices and systems are similar to those of the aforementioned industrial wireless communication method, the implementation of the device and system can refer to the implementation of the aforementioned method, and the repeated parts will not be repeated.

[0093] An embodiment of the present invention provides a slave station device, including:

[0094] A receiving module, configured to receive an instruction to end wireless communication sent by the bound first master station device; and to receive an instruction to establish a communication connection sent by the second master station device when the slave station device is in an idle positioning state;

[0095] A state switching module is used for switching the state of the slave device from a busy state to an idle state to release the binding relationship with the first master device when the receiving module receives the instruction to end the wireless communication sent by the first master device; and switching the state of the slave device from an idle state to a busy state when the receiving module receives the instruction to establish the communication connection;

[0096] The communication module is used for periodically communicating with the second master station device when the state switching module switches the state of the slave station device from the idle state to the busy state.

[0097] An embodiment of the present invention provides a slave station device, a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the industrial wireless communication method as described above is implemented.

[0098] An industrial wireless communication control system provided by an embodiment of the present invention includes: a master station device and a slave station device as described above; wherein:

[0099] The master station device is used to send an instruction to end wireless communication to a slave station device that no longer needs communication, and to release the binding relationship with the slave station device; and to send an instruction to establish a communication connection to a slave station device that needs communication.

[0100] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the industrial wireless communication method as described above is implemented.

[0101] Regarding the slave station device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0102] The industrial wireless communication method, slave station device and system provided by the embodiments of the present invention, when the slave station device receives an instruction from the bound first master station device to end wireless communication, it switches to an idle state according to the instruction to end wireless communication, and then if it receives an instruction from the second master station device to establish a communication connection, it switches to the second master station device to establish a communication connection with it. The embodiments of the present invention can achieve re-matching of the running master station and slave station, making the application of the wireless communication system in the industrial control scenario more flexible and more applicable in the scenario of multi-function multiplexing of the assembly line.

[0103] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0104] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0105] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0106] 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 including 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.

[0107] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0108] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An industrial wireless communication method, characterized in that: Applied to a slave device, the method comprises: When receiving an instruction to terminate wireless communication sent by the bound first master station device, according to the instruction to terminate wireless communication, switching its own state from the busy state to the idle state, and releasing the binding relationship with the first master station device; In the idle state, if an instruction to establish a communication connection is received from the second master station device, a communication connection is established with the second master station device, the device is bound to the second master station device, and its own state is switched from the idle state to the busy state, and the device communicates periodically with the second master station device.

2. The method according to claim 1, characterized in that Before receiving the instruction to end the communication sent by the bound first master station device, the method further includes: Receive a request for establishing a wireless communication connection from the first master station device, authenticate the first master station device based on the registration information of the master station device stored in itself, and if the authentication is successful, establish a wireless communication connection with the first master station device, bind the first master station device, and perform periodic communication with the first master station device.

3. The method according to claim 2, characterized in that Also includes: Pre-configuring each slave device with the number information of the master device to which the slave device is allowed to connect, the partition information of the corresponding communication channel, the identification information and the priority information; Generate a registration information table according to the number information of the configured master station device, the partition information of the corresponding communication channel, the master station identification information and the priority information, and save it in the slave station device; In the registration information table, the partitions of the communication channels corresponding to different master station devices are different and have no intersection with each other; For each master station device, the numbers of slave station devices that the master station device allows to communicate and the corresponding communication channel partition information are configured in advance; registration information is generated and saved in the master station device based on the numbers of slave station devices that the configured master station device allows to communicate and the corresponding communication channel partition information.

4. The method according to claim 3, characterized in that After receiving the instruction to establish a communication connection sent by the second master station device, and before establishing a communication connection with the second master station device, the method further includes: Authenticating the second master station device, and when the authentication is passed, turning to the step of establishing a communication connection with the second master station device; The authenticating the second master station device includes: Parsing the instruction for establishing a communication connection sent by the second master station device, extracting the identification information of the slave station device and the information of the master station device number, and the information of the channel for receiving the instruction for establishing a communication connection; Determine whether the extracted identification information of the slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master device; If the judgment results are all yes, it is confirmed that the second master station device has passed the authentication.

5. The method according to claim 1, characterized in that Establishing a communication connection with the second master station device, comprising: Use the channel information corresponding to the second master station device in the registration information table to establish a communication connection with the second master station device, and use the communication cycle T2 to periodically communicate with the second master station device.

6. The method according to claim 5, characterized in that After the step of switching the state of the device from the busy state to the idle state and releasing the binding relationship with the first master station device, the method further includes: The wireless signal is received through all channels, and the communication period for receiving the wireless signal is T1, and T1 is much greater than T2.

7. The method according to claim 3, characterized in that Also includes: When the slave device is turned on, it adopts the default idle state and receives wireless signals through the preset full channel, and the period of receiving the signal is T1; If a connection request from the first master station is received, the instruction for establishing a communication connection sent by the first master station device is parsed to extract the identification information of the slave station device and the information of the master station device number carried therein, as well as the information of the receiving channel of the instruction for establishing a communication connection; Determine whether the extracted identification information of the slave device is consistent with its own identification, whether the master station number information is consistent with the number information of the master device in the registration information table, and whether the receiving channel of the instruction to establish a communication connection belongs to the channel partition corresponding to the master device; If the judgment results are all yes, confirm that the authentication of the first master station device is passed, and establish a communication connection with the first master station device; update its own status from idle status to busy status, bind to the first master station device, and communicate periodically with the first master station device through the communication channel corresponding to the first master station device.

8. A slave station device, characterized in that: include: A receiving module, used for receiving an instruction to end wireless communication sent by the bound first master station device; and receiving, when the slave station device is in an idle positioning state, an instruction for establishing a communication connection sent by the second master station device; A state switching module, used for switching the state of the slave device from a busy state to an idle state to release the binding relationship with the first master station device when the receiving module receives an instruction to end wireless communication sent by the first master station device; And when the receiving module receives the instruction to establish the communication connection, the state of the slave device itself is switched from the idle state to the busy state; The communication module is used for periodically communicating with the second master station device when the state switching module switches the state of the slave station device from the idle state to the busy state.

9. A slave station device, characterized in that: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the industrial wireless communication method according to any one of claims 1 to 6 when executing the program.

10. An industrial wireless communication control system, characterized in that: include: A master station device and a slave station device as claimed in claim 9; The master station device is used to send an instruction to end wireless communication to the slave station device that no longer needs communication, and to release the binding relationship between the master station device and the slave station device; And send instructions to establish communication connections to slave devices that need to communicate.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the industrial wireless communication method according to any one of claims 1 to 7 is implemented.

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