Composite communication system and industrial system

Abstract

The invention discloses a composite communication system and an industrial system, and the system comprises a sliding rail; the main device is provided with a first wireless communication module and is electrically connected with the sliding rail; the slave device is provided with a second wireless communication module and is electrically connected with the slide rail in a sliding manner; the master device is used for outputting a communication signal to the slide rail, and the slave device is used for receiving the communication signal through the slide rail and executing corresponding operation according to the communication signal; if the master device determines that the slave device does not receive the communication signal from the sliding rail after outputting the communication signal to the sliding rail, the communication signal is transmitted to the slave device through the first wireless communication module, and the slave device is further used for receiving the communication signal through the second wireless communication module and executing corresponding operation according to the communication signal. According to the technical scheme, the problem that both a wired communication scheme and a wireless communication scheme in an industrial environment are not suitable for being used for communicating with continuous motion equipment can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial communications, and in particular to a composite communication system and an industrial system. Background Art

[0002] In industrial field control, it is often necessary to communicate with continuously moving components and equipment (such as tooling fixtures on conveyor belts, continuously moving component transport carts, etc.). Since these components and equipment are in a state of continuous motion, wireless communication is currently chosen to achieve communication with these components and equipment.

[0003] However, due to the complex industrial field environment, neither wired communication solutions through communication cables nor wireless communication solutions through electromagnetic waves are suitable as communication solutions with continuously moving components and equipment in industrial environments. Therefore, how to stably control the communication of continuously moving components and equipment in industrial environments is an urgent problem to be solved in this field. Summary of the invention

[0004] The main purpose of the present invention is to provide a composite communication system, aiming to solve the problem of low communication stability for continuously moving component equipment in an industrial environment.

[0005] To achieve the above object, the present invention provides a composite communication system, which comprises: Slide rails; a main device, the main device being provided with a first wireless communication module and being electrically connected to the slide rail; and A slave device, the slave device is provided with a second wireless communication module and is slidably electrically connected to the slide rail; The master device is used to output a communication signal to the slide rail, and the slave device is used to receive the communication signal through the slide rail and perform a corresponding operation according to the communication signal; The master device is also used to, after outputting the communication signal to the slide rail, transmit a communication signal to the slave device through the first wireless communication module if it is determined that the slave device has not received the communication signal from the slide rail; the slave device is also used to receive the communication signal through the second wireless communication module and perform corresponding operations according to the communication signal.

[0006] Optionally, the number of the master device is one, the number of the slave devices is multiple, and the multiple slave devices correspond one-to-one to the multiple device IDs; The master device is used to determine a slave device to be communicated with from among the plurality of slave devices as a target slave device, and output a communication signal including a device ID of the target slave device through the slide rail or the first wireless communication module; Each of the slave devices is used to access the communication signal from the slide rail or through the second wireless communication module, and is used to perform corresponding operations according to the communication signal when it is determined that the device ID included in the communication signal is consistent with its own device ID.

[0007] Optionally, each of the slave devices is further configured to output a corresponding response signal to the slide rail when it is determined that the device ID included in the communication signal accessed through the slide rail is consistent with its own device ID; and output a corresponding response signal to the second wireless communication module when it is determined that the device ID included in the communication signal accessed through the second wireless communication module is consistent with its own device ID; The master device is further configured to determine that the communication with the target slave device is completed after receiving the response signal through the slide rail or the first wireless communication module.

[0008] Optionally, after the master device outputs the communication signal to the slide rail, if the master device does not receive the response signal within a preset time period, it is determined that the target slave device has not received the communication signal from the slide rail.

[0009] Optionally, the number of the slide rails is multiple; The master device is electrically connected to each of the slide rails respectively, and the master device is used to select one of the slide rails from the plurality of slide rails to output a communication signal including a device ID of the target slave device; Each of the slave devices is respectively electrically connected to all of the slide rails in a sliding manner, and each of the slave devices is used to access the communication signal from all of the slide rails, and is used to perform a corresponding operation according to the communication signal when it is determined that the device ID included in the accessed communication signal is consistent with its own device ID; The master device is also used to switch to selecting one of the remaining slide rails to re-output the communication signal including the device ID of the target slave device if the response signal is not received from the currently selected slide rail within a preset time after outputting the communication signal to the slide rail.

[0010] Optionally, the master device is further configured to transmit a communication signal to the target slave device through the first wireless communication module when all the slide rails are selected and the response signal is not received within a preset time period.

[0011] Optionally, the slide rail comprises an electric rail; The main device is electrically connected to the power rail; The slave device comprises a device body and a conductive roller. The device body is provided with the second wireless communication module and is rotationally electrically connected to the conductive roller. The conductive roller is slidably arranged in the electric track.

[0012] Optionally, the electric track includes a first electric track and a second electric track; the conductive roller includes a first conductive roller and a second conductive roller, the first conductive roller is slidably disposed in the first electric track, and the second conductive roller is slidably disposed in the second electric track; The master device is connected to the first power rail and the second power rail respectively; The device body is rotationally electrically connected to the first conductive roller and the second conductive roller respectively; and when the electric track transmits an electrical signal, the signal levels transmitted on the first electric track and the second electric track are different.

[0013] Optionally, one of the first power rail and the second power rail is used to transmit a reference level signal, and the other is used to transmit a communication level signal; Wherein, the communication level signal is higher or lower than the reference level signal.

[0014] The present invention also provides an industrial system, comprising the composite communication system as described above.

[0015] The technical solution of the present invention uses the slide rail as the transmission medium of the communication signal and uses the wireless communication scheme as the backup communication option for the communication between the master and slave devices. Compared with the single wired communication scheme and the single wireless communication scheme, it can avoid occupying the tight channel resources like the wireless communication scheme, and is not limited to the communication cable like the wired communication scheme. At the same time, since the slide rail essentially transmits the communication signal through the physical medium (non-air medium), the communication stability is also strong, and it will not be easily interfered and fail like the wireless communication scheme. When the slide rail communication fails, the communication control of the slave device can be maintained by switching the wireless communication scheme, so that the master device 20 can maintain the communication control of the slave device more stably, which is conducive to improving the communication stability of the continuously moving component equipment in the industrial environment. In addition, the technical solution of the present invention does not need to add an additional communication signal transmission channel, and can be realized by using the slide rail and wireless communication channel originally required for the movement of the slave device. The difficulty and cost of implementation are both low, which is convenient for large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1A schematic diagram of a module of an embodiment of a composite communication system of the present invention; Figure 2 A schematic diagram of the structure of an embodiment of a composite communication system of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure shown in another viewing angle; Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0018] Description of Figure Numbers: The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] It should be noted that for wired communication solutions, since the component equipment is always in motion, not only does the communication cable need a longer redundant length, but it is also necessary to consider the impact of the communication cable on the industrial field environment as the component equipment moves (for example, whether the communication cable will be entangled with other equipment as the component equipment moves). Therefore, wired communication solutions cannot be used as communication solutions for moving component equipment. For wireless communication solutions, in industrial field environments, not only are wireless communication channel resources tight, it is usually difficult to have idle wireless communication channels for component equipment to communicate, and the electromagnetic environment in the industrial field environment is often more complex. The probability of wireless communication failure is also higher due to the complex electromagnetic environment. Therefore, single wireless communication is not suitable as a communication solution for moving component equipment.

[0022] In view of the above problems, the present invention proposes a composite communication system.

[0023] Reference Figure 1 , the composite communication system comprises: Slide rail 10; A main device 20, wherein the main device 20 is provided with a first wireless communication module 21 and is electrically connected to the slide rail; and A slave device 30, wherein the slave device 30 is provided with a second wireless communication module 31 and is slidably electrically connected to the slide rail; The master device 20 is used to output a communication signal to the slide rail 10, and the slave device 30 is used to receive the communication signal through the slide rail 10 and perform corresponding operations according to the communication signal; The master device 20 is also used to, after outputting the communication signal to the slide rail 10, transmit a communication signal to the slave device 30 through the first wireless communication module 21 if it is determined that the slave device 30 has not received the communication signal from the slide rail 10. The slave device 30 is also used to receive the communication signal through the second wireless communication module 31 and perform corresponding operations according to the communication signal.

[0024] In this embodiment, the slave device 30 may be a component device that needs to be controlled for communication and is in a continuous motion state, such as a fixture on a conveyor belt, a continuously moving component transport trolley, etc., which is not limited in this application. The slave device 30 may be provided with sliding parts such as rollers. The slide rail 10 may be laid along the moving path of the slave device 30, and the slide rail 10 may be provided with a slide rail for the sliding part of the slave device 30 to slide. The sliding part of the slave device 30 is located in the slide rail to achieve continuous movement of the slave device 30. The sliding part of the slave device 30 and the slide rail in the slide rail 10 can be made of metal conductive materials, so as to achieve sliding electrical connection between the slave device 30 and the slide rail 10. That is to say, when the slave device 30 in this embodiment slides on the slide rail 10, it is always in a state of being electrically connected to the slide rail 10.

[0025] The master device 20 may be a device for sending communication signals, and is used to realize communication control over the slave device 30. The interface of the master device 20 for outputting communication signals may always be electrically connected to the slide rail of the slide rail 10, and the master device 20 may output corresponding communication signals to the slide rail of the slide rail 10 in response to the control of the host computer or the operator. Since the slave device 30 always maintains an electrical connection with the slide rail 10, the slave device 30 may receive the communication signal output by the master device 20 through the slide rail, and may perform corresponding work operations according to the communication signal, thereby realizing communication control of the slave device 30 by the master device 20.

[0026] The first wireless communication module 21 and the second wireless communication module 31 can be wireless communication modules of the same type, for example, they can be any one or more combinations of WIFI communication module, LORA communication module, 433M radio frequency communication module, 4G communication module, and 5G communication module. Of course, in other optional embodiments, the first wireless communication module 21 and the second wireless communication module 31 can also be wireless communication modules of different types.

[0027] This embodiment does not limit the specific determination method of how the master device 20 determines whether the slave device has received the communication signal from the slide rail 10. For example, the determination method may be that the slave device 30 is configured to feed back a characteristic signal indicating successful reception to the master device 20 after receiving the communication signal. If the master device 20 does not receive the characteristic signal fed back by the slave device 30 within a relatively long period of time when the communication signal is output through the slide rail 10, it can be confirmed that the slave device 30 has not received the communication signal from the slide rail 10. Alternatively, the determination method may also be that the master device 20 actively sends an inquiry signal to the slave device 30 through the first wireless communication module 21 after outputting the communication signal to the slide rail 10; the slave device 30 may be configured to feed back a characteristic signal indicating that the communication signal has not been received to the master device 20 through the second wireless communication module 31 if the communication signal is not received within a preset time after receiving the inquiry signal, so that the master device 20 can also confirm that the slave device 30 has not received the communication signal from the slide rail 10.

[0028] If the master device 20 confirms that the slave device has not received the communication signal from the slide rail, it means that the communication of the slide rail 10 has failed due to some reasons (such as poor contact, etc.). At this time, the master device 20 sends a communication signal through the first wireless communication module 21, so that the slave device 30 can obtain the communication signal and work through its own second wireless communication module 31.

[0029] If the master device 20 receives a communication signal from the slide rail, it means that the slide rail 10 communicates correctly, the master device 20 does not output the communication signal through the first wireless communication module 21, and the slave device 30 does not feedback the output response signal through the second wireless communication module 31. At this time, the master device 20 and the slave device 30 can continue to communicate through the slide rail 10.

[0030] The technical solution of the present invention preferentially utilizes the slide rail 10 as the transmission medium of the communication signal, and uses the wireless communication scheme as the backup communication option for the communication between the master and slave devices (20, 30). Compared with the single wired communication scheme and the single wireless communication scheme, it can avoid always occupying the tight channel resources like the wireless communication scheme, and is not limited by the communication cable like the wired communication scheme. At the same time, since the slide rail 10 essentially transmits the communication signal through the physical medium (non-air medium), the communication stability is also strong when the slide rail 10 is used, and it will not be easily interfered and fail like the wireless communication scheme. When the communication of the slide rail 10 fails, the communication control of the slave device 30 can be maintained by switching the wireless communication scheme, so that the master device 20 can maintain the communication control of the slave device 30 more stably, which is conducive to improving the communication stability of the continuously moving component equipment in the industrial environment.

[0031] In addition, the technical solution of the present invention does not require the addition of additional communication signal transmission channels, and can be implemented by utilizing the slide rails and wireless communication channels originally required for the movement of the slave device 30. The implementation difficulty and cost are relatively low, and it is convenient for large-scale promotion and application.

[0032] Reference Figure 2 and Figure 3 , the number of the master device 20 is one, the number of the slave devices 30 is multiple, and the multiple slave devices 30 correspond one-to-one to the multiple device IDs; The master device 20 is used to determine a slave device 30 to be communicated with from among the plurality of slave devices 30 as a target slave device, and output a communication signal including a device ID of the target slave device through the slide rail 10 or the first wireless communication module 21; Each slave device 30 is used to access the communication signal from the slide rail 10 or through the second wireless communication module 31, and is used to perform corresponding operations according to the communication signal when it is determined that the device ID included in the communication signal is consistent with its own device ID.

[0033] In this embodiment, the specific number of slave devices 30 can be determined according to actual needs, and this application does not limit this. All slave devices 30 can be pre-stored with a dedicated device ID, and the corresponding relationship between each slave device 30 and its own device ID can also be stored in the master device 20, so that the master device 20 can query the table when selecting the slave device 30 to communicate. When the master device 20 needs to communicate and control a slave device 30, it can first select the slave device 30 that needs to communicate from multiple slave devices 30 as the target slave device, and at the same time find the corresponding device ID of the target slave device, and then the master device 20 can generate a communication signal according to the control demand and the found device ID, and can output the generated communication signal to the slide rail 10 for all slave devices 30 to obtain. Of course, after the master device 20 outputs the communication signal to the slide rail 10, if it is determined that the slave device 30 has not received the communication signal from the slide rail 10, then the master device 20 will switch to output the communication signal with the target slave device device ID through the first wireless communication module 21.

[0034] For each slave device 30, whether it obtains the communication signal from the slide rail 10 or through the second wireless communication module 31, it can decode the communication signal after obtaining it to obtain the device ID carried in the communication signal. Each slave device 30 can compare the decoded device ID with its own device ID to determine whether the two are consistent. If the decoded device ID is consistent with its own device ID, it means that it is the target slave device of the current communication control of the master device 20. At this time, it can continue to perform corresponding work operations according to the control information decoded from the communication signal, thereby realizing the communication control of the master device 20; if the decoded device ID is inconsistent with its own device ID, it means that it is not the target slave device of the current communication control of the master device 20, and there is no need to respond to the communication signal, and it can continue to maintain the current state.

[0035] Optionally, each of the slave devices 30 is further configured to output a corresponding response signal to the slide rail 10 when it is determined that the device ID included in the communication signal accessed through the slide rail 10 is consistent with its own device ID; and output a corresponding response signal to the second wireless communication module 31 when it is determined that the device ID included in the communication signal accessed through the second wireless communication module 31 is consistent with its own device ID; The master device 20 is further configured to determine that the communication with the target slave device is completed after receiving the response signal through the slide rail 10 or the first wireless communication module 21 .

[0036] In this embodiment, the slave device 30 can also generate and output a response signal to the slide rail 10 or the second wireless communication module 31 when confirming that the decoded device ID is consistent with its own device ID, and the response signal is used to indicate that the target slave device has successfully received the communication signal. In this way, the master device 20 can determine that the target slave device has successfully received the communication signal and work according to it after receiving the response signal through the slide rail 10 or the first wireless communication module 21. Of course, in other optional embodiments, the slave device 30 can also be configured to output a response signal only after successfully working according to the communication signal, and this embodiment is not limited to this.

[0037] Optionally, after the master device 20 outputs the communication signal to the slide rail 10 , if no response signal output by the target slave device is received within a preset time period, it is determined that the target slave device has not received the communication signal from the slide rail 10 .

[0038] The main device 20 can start timing after outputting a communication signal through the slide rail 10, and at the same time determine whether a response signal is received from the slide rail 10 before the timing reaches a preset time; wherein the preset time can be determined according to actual needs, and this application does not limit this.

[0039] If the master device 20 does not receive a response signal within the preset time, it means that the communication of the slide rail 10 fails due to some reasons (such as poor contact, etc.), and the master device 20 switches to sending a communication signal through the first wireless communication module 21, so that each slave device 30 can obtain the communication signal through its own second wireless communication module 31. Since the communication of the slide rail 10 fails at this time, the slave device 30 outputs a response signal through the second wireless communication module 31, and the master device 20 obtains the response signal through the first wireless communication module 21 and determines that the target slave device has successfully responded.

[0040] If the master device 20 receives the response signal within the preset time, it means that the slide rail 10 communicates correctly, and the master device 20 does not output the communication signal through the first wireless communication module 21 .

[0041] The technical solution of the present invention allows the master device 20 to determine whether the communication of the slide rail 10 fails based on whether it receives a response signal within a preset time after outputting the communication signal, so that the master device 20 can promptly and actively switch to sending a communication signal to the target slave device through a wireless communication solution. Regardless of whether the communication of the slide rail 10 is really failed at this time, it can ensure that the target slave device receives the communication signal, which is beneficial to improving the control stability and timeliness of the target slave device.

[0042] In actual applications, it is found that due to the extremely complex actual industrial environment, the probability of failure of communication of a single slide rail 10 is relatively high, and once the communication of the only slide rail 10 fails, only the first wireless communication module 21 and the second wireless communication module 31 can be used for wireless communication, so that the probability of activation of the first wireless communication module 21 and the second wireless communication module 31 is relatively high. To address this problem, the number of the slide rails 10 can be set to multiple; The master device 20 is electrically connected to each of the slide rails 10, and the master device 20 is used to select one of the slide rails 10 to output a communication signal including the device ID of the target slave device; Each of the slave devices 30 is respectively electrically connected to all of the slide rails in a sliding manner, and each of the slave devices 30 is used to access the communication signal from all of the slide rails 10, and is used to perform a corresponding operation according to the communication signal when it is determined that the device ID included in the accessed communication signal is consistent with its own device ID; The master device 20 is also used to switch to selecting one of the remaining slide rails 10 to re-output the communication signal including the device ID of the target slave device after outputting the communication signal to the slide rail 10 if the response signal is not received from the currently selected slide rail 10 within a preset time period.

[0043] In this embodiment, the number of slide rails 10 can also be determined according to actual needs, and this embodiment does not limit this. The master device 20 can be electrically connected to multiple slide rails 10 respectively; the number of sliding members in the slave device 30 can be the same as the number of slide rails 10, each sliding member can be accommodated in a slide rail 10 and slide in the accommodated slide rail 10, and each sliding member can transmit electrical signals with the slide rail 10 that contacts itself when sliding. The master device 20 can first select a slide rail 10 as a communication slide rail 10 randomly or according to a preset selection order from all the slide rails 10, and can output a communication signal to the selected slide rail 10 when it needs to communicate with the target slave device. At this time, all slave devices 30 are configured to receive signals from all slide rails 10. The processing process of each slave device 30 after receiving the communication signal through the slide rail 10 can refer to the above embodiment, which will not be repeated here, but the difference from the above embodiment is that if the communication of the slide rail 10 is not invalid at this time, the target slave device will select the same slide rail 10 that receives the communication signal to output a response signal for the master device 20 to receive. If the master device 20 does not receive a response signal from all the slide rails 10 or receives a response signal from other slide rails 10 (not the currently selected slide rail 10) within the preset time after outputting the communication signal, it is deemed that no response signal is received from the currently selected slide rail 10. At this time, the master device 20 can continue to select a slide rail 10 from the remaining slide rails 10 that have not output communication signals to output the communication signal, and re-determine whether a response signal is received from the currently selected slide rail 10 within the preset time after outputting the communication signal.

[0044] If the master device 20 receives a response signal from the slide rail 10 selected this time within the preset time after outputting the communication signal this time, it means that the slide rail 10 switched this time can communicate with the target slave device normally, and the communication signal can be output to the slide rail 10 in the future. If the master device 20 still does not receive a response signal from the slide rail 10 selected this time within the preset time after outputting the communication signal this time, it means that the slide rail 10 switched this time also has a communication failure problem, and the master device 20 can continue to switch the slide rail 10 to output the communication signal until the response signal is successfully received and then stop switching.

[0045] The technical solution of the present invention sets multiple slide rails 10 as backup communication channels (not shown in the figure), which can switch to other slide rails 10 to try to communicate with the target slave device when the communication of the current slide rail 10 fails, thereby reducing the probability of enabling the wireless communication scheme (the first wireless communication scheme and the second wireless communication scheme) as much as possible.

[0046] Optionally, the master device 20 is further configured to transmit a communication signal to the target slave device through the first wireless communication module 21 when all the slide rails 10 are selected and no response signal is received within a preset time period.

[0047] In this embodiment, after the master device 20 has tried to communicate with all the slide rails 10, if all the slide rails 10 have not successfully fed back a response signal, it means that all the slide rails 10 have a communication failure problem. At this time, the master device 20 can output a communication signal to the target slave device in a wireless communication manner through the first wireless communication module 21. In this way, the technical solution of the present invention enables the master device 20 to still achieve communication control of the target slave device through a wireless communication solution after all the slide rails 10 fail to communicate, thereby improving the compatibility of the composite communication system of the present invention.

[0048] Reference Figures 2 to 4 , the slide rail 10 includes an electric rail 11; The main device 20 is electrically connected to the power rail 11; The slave device 30 includes a device body 32 and a conductive roller 33 . The device body 32 is provided with the second wireless communication module 31 and is rotationally electrically connected to the conductive roller 33 . The conductive roller 33 is slidably disposed in the electric track 11 .

[0049] In this embodiment, the electric rail 11 and the conductive roller 33 can be made of conductive materials such as metal. The electric rail 11 can always be connected to the master device 20 through a signal line. The conductive roller 33 can be rotatably mounted on the device body 32 and can always be electrically connected to the device body 32. The electric rail 11 can support the electric roller of the slave device 30 to roll therein, and can always be electrically connected to the conductive roller 33 when it rolls, thereby realizing the transmission of electrical signals between the master device 20 and the slave device 30.

[0050] Specifically, the communication signal output by the master device 20 can reach the device body 32 through the electric track 11 and the conductive roller 33 in sequence, and the device body 32 can perform related work such as device ID code verification, performing operations according to the communication signal, and outputting response signals. Of course, when the target slave device outputs a response signal, the response signal is generated by the device body 32 of the slave device 30 and is output to the master device 20 through the conductive roller 33 and the electric track 11 of the slave device 30 in sequence.

[0051] It is understandable that the second wireless communication module 31 can be arranged on the device body 32 of the slave device 30. Of course, the master device 20 also has a device body 32, that is, a master device body 22, the first wireless communication module 21 is arranged on the master device body 22, and the master device body 22 is electrically connected to the power rail 11.

[0052] Optionally, the power rail 11 includes a first power rail 111 and a second power rail 112; the conductive roller 33 includes a first conductive roller 331 and a second conductive roller 332, the first conductive roller 331 is slidably disposed in the first power rail 111, and the second conductive roller 332 is slidably disposed in the second power rail 112; The master device 20 is connected to the first power rail 111 and the second power rail 112 respectively; The device body 32 is rotationally electrically connected to the first conductive roller 331 and the second conductive roller 332 respectively; and when the electric track 11 transmits an electrical signal, the signal levels transmitted on the first electric track 111 and the second electric track 112 are different.

[0053] Further, one of the first power rail 111 and the second power rail 112 is used to transmit a reference level signal, and the other is used to transmit a communication level signal; Wherein, the communication level signal is higher or lower than the reference level signal.

[0054] In this embodiment, the electrical signal is the above-mentioned communication signal or response signal. The reference level signal may be a constant preset level, for example, 0V; the communication level signal may be a variable preset level, for example, switching between a preset high level or a preset low level. The timing and amplitude of the preset high level or preset low level are determined by the actual setting of the communication signal or response signal, and this application does not limit this. Since the level value of the communication level signal is different from the level value of the reference level signal, that is, the level value of the communication level signal will always be higher or lower than the level value of the reference level signal, the communication level signal and the reference level signal can cooperate to undertake the data transmission task, thereby realizing the communication signal and the response signal.

[0055] It can be understood that the first power rail 111 and the second power rail 112 can be independent parts, that is, they can be insulated from each other to achieve independent transmission of the communication level signal and the reference level signal.

[0056] The present invention also proposes an industrial system, which includes a composite communication system. The specific structure of the composite communication system refers to the above-mentioned embodiment. Since the industrial system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0057] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A composite communication system, characterized in that: The composite communication system comprises: Slide rails; a main device, the main device being provided with a first wireless communication module and being electrically connected to the slide rail; and A slave device, the slave device is provided with a second wireless communication module and is slidably electrically connected to the slide rail; The master device is used to output a communication signal to the slide rail, and the slave device is used to receive the communication signal through the slide rail and perform a corresponding operation according to the communication signal; The master device is also used to, after outputting the communication signal to the slide rail, transmit a communication signal to the slave device through the first wireless communication module if it is determined that the slave device has not received the communication signal from the slide rail; the slave device is also used to receive the communication signal through the second wireless communication module and perform corresponding operations according to the communication signal.

2. The composite communication system according to claim 1, characterized in that: The number of the master device is one, the number of the slave devices is multiple, and the multiple slave devices correspond one-to-one to the multiple device IDs; The master device is used to determine a slave device to be communicated with from among the plurality of slave devices as a target slave device, and output a communication signal including a device ID of the target slave device through the slide rail or the first wireless communication module; Each of the slave devices is used to access the communication signal from the slide rail or through the second wireless communication module, and is used to perform corresponding operations according to the communication signal when it is determined that the device ID included in the communication signal is consistent with its own device ID.

3. The composite communication system according to claim 2, characterized in that: Each of the slave devices is further configured to output a corresponding response signal to the slide rail when it is determined that the device ID included in the communication signal accessed through the slide rail is consistent with its own device ID; and output a corresponding response signal to the second wireless communication module when it is determined that the device ID included in the communication signal accessed through the second wireless communication module is consistent with its own device ID; The master device is further configured to determine that the communication with the target slave device is completed after receiving the response signal through the slide rail or the first wireless communication module.

4. The composite communication system according to claim 3, characterized in that: After the master device outputs the communication signal to the slide rail, if the master device does not receive the response signal within a preset time period, it is determined that the target slave device has not received the communication signal from the slide rail.

5. The composite communication system according to claim 3, characterized in that: The number of the slide rails is multiple; The master device is electrically connected to each of the slide rails respectively, and the master device is used to select one of the slide rails from the plurality of slide rails to output a communication signal including a device ID of the target slave device; Each of the slave devices is respectively electrically connected to all of the slide rails in a sliding manner, and each of the slave devices is used to access the communication signal from all of the slide rails, and is used to perform a corresponding operation according to the communication signal when it is determined that the device ID included in the accessed communication signal is consistent with its own device ID; The master device is also used to switch to selecting one of the remaining slide rails to re-output the communication signal including the device ID of the target slave device if the response signal is not received from the currently selected slide rail within a preset time after outputting the communication signal to the slide rail.

6. The composite communication system according to claim 5, characterized in that: The master device is further configured to transmit a communication signal to the target slave device through the first wireless communication module when all the slide rails are selected and the response signal is not received within a preset time period.

7. The composite communication system according to any one of claims 1 to 6, characterized in that: The slide rails include electric rails; The main device is electrically connected to the power rail; The slave device comprises a device body and a conductive roller. The device body is provided with the second wireless communication module and is rotationally electrically connected to the conductive roller. The conductive roller is slidably arranged in the electric track.

8. The composite communication system according to claim 7, characterized in that: The electric track includes a first electric track and a second electric track; the conductive roller includes a first conductive roller and a second conductive roller, the first conductive roller is slidably disposed in the first electric track, and the second conductive roller is slidably disposed in the second electric track; The master device is connected to the first power rail and the second power rail respectively; The device body is rotationally electrically connected to the first conductive roller and the second conductive roller respectively; and when the electric track transmits an electrical signal, the signal levels transmitted on the first electric track and the second electric track are different.

9. The composite communication system according to claim 6, wherein: One of the first power rail and the second power rail is used to transmit a reference level signal, and the other is used to transmit a communication level signal; Wherein, the communication level signal is higher or lower than the reference level signal.

10. An industrial system, characterized in that: Comprising the composite communication system as claimed in any one of claims 1 to 9.

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