Current shunt device, communication device and system

Abstract

The invention discloses a current shunt device, a communication device and a system, the current shunt device at least comprises two resistors, two alternating current breakers and a direct current and alternating current shunt unit, the two resistors, the two alternating current breakers and the direct current and alternating current shunt unit form a T-shaped structure, the two resistors are connected in series, each resistor is connected in parallel with one alternating current breaker, and the two resistors are connected in parallel with the direct current and alternating current shunt unit. One end of one resistor is respectively connected with one end of the other resistor and the first end of the direct current and alternating current shunt unit, the second end of the direct current and alternating current shunt unit is used for outputting direct current, and the third end of the direct current and alternating current shunt unit is used for inputting and / or outputting alternating current. The device can be applied to a scene where alternating current and direct current are transmitted on a transmission line. According to the device provided by the invention, when multi-node networking is carried out based on the transmission line, wire harnesses can be saved, the wiring difficulty can be reduced, and the networking flexibility can be improved.

Description

Current shunt device, communication device and system Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a current shunt device, a communication device, and a system. Background Art

[0002] Wired communication is achieved via physical media or cables, such as waveguides and optical fibers. While offering advantages like stable transmission and interference resistance, wired communication also suffers from drawbacks like complex wiring and poor scalability. This weakness is particularly pronounced when multiple devices require wiring harnesses, the wiring area is small, and the structure is complex. Saving wiring harnesses and reducing wiring complexity during communication is an urgent issue that needs to be addressed to meet future communication application requirements.

[0003] Summary of the Invention

[0004] The present application discloses a current shunt device, a communication device, and a system, which can save wiring harnesses, reduce wiring difficulty, and help improve communication reliability.

[0005] In a first aspect, the present application provides a current shunt device, comprising: a first resistor, a second resistor, a first AC breaker, a second AC breaker, and a DC-AC shunt unit, wherein the first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, and the second end of the second resistor is used to output current, the first resistor is connected in parallel with the first AC breaker, the second resistor is connected in parallel with the second AC breaker, the first end of the DC-AC shunt unit is connected to the second end of the first resistor, the second end of the DC-AC shunt unit is used to output DC, and the third end of the DC-AC shunt unit is used to input and / or output AC.

[0006] Preferably, the resistance value of the first resistor is equal to the resistance value of the second resistor.

[0007] Here, an AC block, also called an isolator, blocks AC current from passing DC current. The AC block can be, for example, an inductor or a ferrite bead. Therefore, the first and second AC blocks block AC current while allowing DC current to pass.

[0008] Optionally, the second end of the second resistor can also be used to input current, and the first end of the first resistor is used to output current.

[0009] Based on the description of the above connection relationship, it can be seen that the current shunt device presents a "T"-shaped structure. The signal loss when it is transmitted on the main path where the first resistor and the second resistor are located (i.e., "T"-shaped structure "one") is smaller than the signal loss when it is transmitted on the branch path (i.e., half of the "T"-shaped structure). This allows more nodes to be connected on the transmission line through the current shunt device, saving the length of the wiring harness.

[0010] For example, when a signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when a signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when a signal is input from the third end of the DC-AC shunt unit, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0011] In the above method, the above current shunt device can solve the problem of AC and DC shunt between the transmission line and the node, which is suitable for scenarios where RF signals and power signals are transmitted on the same transmission line. It is not only beneficial to reduce the length of the wiring harness that needs to be deployed when the nodes are wired networked, but also reduces the difficulty of wiring.

[0012] In a possible implementation of the first aspect, the DC-AC shunt unit includes at least one AC breaker and at least one DC breaker, the at least one AC breaker being used to output at least part of the DC current in the current from the first end of the DC-AC shunt unit to the second end of the DC-AC shunt unit, and the at least one DC breaker being used to output at least part of the AC current in the current from the first end of the DC-AC shunt unit to the third end of the DC-AC shunt unit, and / or to output at least part of the AC current in the current from the third end of the DC-AC shunt unit to the first end of the DC-AC shunt unit.

[0013] Here, the DC Block is also called a DC block, which has the function of blocking DC current and allowing AC current to pass. The DC Block can be, for example, a capacitor or a diode.

[0014] By implementing the above implementation, the AC current and the DC current are branched in the DC / AC branch unit through at least one AC isolator and at least one DC isolator.

[0015] In a possible implementation of the first aspect, the at least one AC isolator includes a third AC isolator, and the at least one DC isolator includes a first DC isolator. The first end of the third AC isolator and the first end of the first DC isolator are respectively connected to the second end of the first resistor, the second end of the third AC isolator is the second end of the DC-AC shunt unit, and the second end of the first DC isolator is the third end of the DC-AC shunt unit.

[0016] By implementing the above implementation, the first DC breaker can prevent DC current from passing through, and the third AC breaker can prevent AC current from passing through, thereby achieving branching of AC current and DC current in the DC / AC branch unit.

[0017] In a possible implementation of the first aspect, the DC / AC shunt unit further includes a third resistor, the second end of the DC breaker is grounded through the third resistor, and a resistance value of the third resistor is greater than a resistance value of the first resistor.

[0018] In a possible implementation of the first aspect, the at least one AC isolator includes a third AC isolator and a fourth AC isolator, the at least one DC isolator includes a first DC isolator, the DC / AC shunt unit also includes a third resistor, the third AC isolator is connected in parallel with the third resistor, the first end of the third resistor is connected to the second end of the first resistor, the second end of the third resistor is respectively connected to the first end of the fourth AC isolator and the first end of the first DC isolator, the second end of the fourth AC isolator is the second end of the DC / AC shunt unit, and the second end of the first DC isolator is connected to the third end of the DC / AC shunt unit.

[0019] By implementing the above implementation, the resistance of the third resistor is greater than the resistance of the first resistor, which can ensure that the transmission loss of the signal on the main path in the current branching device is less than the transmission loss on the branch path.

[0020] In a possible implementation of the first aspect, the at least one DC breaker further includes a second DC breaker, the DC / AC shunt unit further includes a fourth resistor, the second DC breaker and the fourth resistor form a series circuit, the first end of the first DC breaker is connected to the first end of the series circuit, the second end of the series circuit is grounded, and the resistance of the fourth resistor is greater than the resistance of the third resistor.

[0021] In a possible implementation of the first aspect, the direct current carries a power signal, and the alternating current carries a data signal or a control signal.

[0022] By implementing the above implementation, the current splitting device can realize the transmission of data signals / control signals and power signals on the same transmission line.

[0023] In a possible implementation of the first aspect, the current shunt device also includes a duplexer, and the third end of the DC-AC shunt unit is connected to the duplexer, and the duplexer is used to separate the AC into a first frequency AC signal and a second frequency AC signal, or to merge the first frequency AC signal and the second frequency AC signal into the AC.

[0024] Here, a duplexer can isolate signals of different frequency bands. A duplexer is generally composed of two sets of bandpass filters with different frequencies to prevent the transmitting and receiving signals of the local machine from interfering with each other.

[0025] The first frequency AC signal is a data signal or a control signal, and the second frequency AC signal is a clock signal.

[0026] By implementing the above-mentioned implementation method, the current shunt device is equipped with a duplexer, which can solve the branching of RF signals, clock signals and power signals, realize the transmission of RF signals, clock signals and power signals on the same transmission line, and synchronize the nodes connected to the current shunt device with nodes operating at other frequencies on the same transmission line, such as synchronization of transmission and reception timing and orthogonalization of carriers.

[0027] In a possible implementation of the first aspect, the current splitting device further includes a power splitter or a switching element, the first end of the power splitter or the first end of the switching element is connected to the third end of the DC / AC splitter unit, the second end of the power splitter or the second end of the switching element is connected to the wireless transceiver, the third end of the power splitter or the third end of the switching element is used to input and / or output AC, the first end of the switching element is conductive to the second end of the switching element or the third end of the switching element, and the power splitter is used to distribute the signal power on the first end of the power splitter to the second end of the power splitter and the third end of the power splitter, or to merge the signal power on the second end of the power splitter and the signal power on the third end of the power splitter to the first end of the power splitter.

[0028] Here, a power divider is also called a power divider. It is a device that divides the energy of one input signal into two or more outputs of equal or unequal energy. It can also combine the energy of multiple signals into one output, in which case it is also called a combiner.

[0029] Illustratively, the wireless transceiver device may be an antenna, an antenna transmitter, a radio transmitter, etc.

[0030] By implementing the above implementation, any one of wired communication and wireless communication can be selected through the switch element, and link transmission of wired communication and / or wireless communication can be achieved through the power divider.

[0031] In a possible implementation manner of the first aspect, the current splitting device further includes the wireless transceiver.

[0032] By implementing the above implementation, the wireless transceiver device can be integrated into the current shunt device.

[0033] In a possible implementation manner of the first aspect, the first end of the first resistor and the second end of the second resistor are connected to a bus.

[0034] Here, a transmission line refers to a cable used to transmit electromagnetic energy, and can also be understood as a cable used to transmit electrical energy and signals. When used to transmit both AC and DC currents, the transmission line can be, for example, a coaxial cable or radio frequency cable, a two-wire transmission line, or a microstrip transmission line. When used to transmit only AC current, the transmission line can be, for example, a waveguide transmission line, an optical fiber, a two-wire transmission line, or a microstrip transmission line.

[0035] By implementing the above implementation method and using wired media to transmit signals, the occupation of spectrum resources can be reduced.

[0036] In a second aspect, the present application provides a communication device, comprising: a first resistor, a second resistor and a wireless transceiver, wherein the first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, the second end of the second resistor is used to output current, and the second end of the first resistor is also connected to the wireless transceiver.

[0037] Preferably, the resistance value of the first resistor is equal to the resistance value of the second resistor.

[0038] Illustratively, the wireless transceiver device may be an antenna, an antenna transmitter, a radio transmitter, etc.

[0039] Optionally, the second end of the second resistor can also be used to input current, and the first end of the first resistor is used to output current.

[0040] Here, based on the relationship between the resistance values ​​of the above-mentioned resistors, it can be seen that the loss of the signal when it is transmitted on the main path between the first end of the first device and the second end of the second resistor is smaller than the loss when the signal is transmitted to the wireless transceiver. The device provided in this application can reduce the loss of the signal on the transmission line.

[0041] For example, when a signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the wireless transceiver; when a signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the wireless transceiver; when a signal is input from the wireless transceiver, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0042] It can be seen that the communication device provided in this application includes two resistors and a wireless transceiver. The communication device is suitable for scenarios where the transmission line only transmits alternating current, which is conducive to improving the flexibility of integrated networking for wired and wireless communications based on transmission lines, and reducing the length of the deployed wiring harness.

[0043] The communication device receives radio frequency signals radiated from the air through its own wireless transceiver, and transmits the radio frequency signals to the first end of the first resistor and the second end of the second resistor of the device, i.e., wireless communication is used first and then wired communication. The device can also obtain radio frequency signals from the first end of the first resistor or the second end of the second resistor and radiate the radio frequency signals into the air through its own wireless transceiver, i.e., wired communication is used first and then wireless communication is used. It can be seen that the device can achieve communication with other nodes with wireless communication capabilities or nodes on other transmission lines with the same capabilities. The device achieves the integration of wired and wireless communication based on the connected transmission line and its own wireless transceiver.

[0044] In a possible implementation manner of the second aspect, the current includes an alternating current, and the alternating current carries a radio frequency signal.

[0045] When the above implementation is implemented and the communication device includes a first resistor, a second resistor, and a wireless transceiver, the communication device is suitable for a scenario where a radio frequency signal is transmitted on a transmission line.

[0046] In a possible implementation of the second aspect, the device further includes a first AC isolator, a second AC isolator, and a DC isolator, wherein the first AC isolator is connected in parallel with the first resistor, the second AC isolator is connected in parallel with the second resistor, and the second end of the first resistor is also connected to the wireless transceiver, including: the second end of the first resistor is also connected to the wireless transceiver through the DC isolator.

[0047] Here, the AC isolator and the DC isolator can refer to the description of the corresponding content of the first aspect.

[0048] By implementing the above implementation, the first AC isolator and the second AC isolator can be used for transmitting DC current on the main circuit of the communication device. The DC isolator can prevent the DC current on the main circuit of the communication device from damaging the wireless transceiver.

[0049] In a possible implementation of the second aspect, the current further includes a direct current, and the direct current carries a power signal.

[0050] When the above implementation is implemented and the communication device further includes the above-mentioned AC isolator and DC isolator, the communication device is suitable for scenarios where radio frequency signals and power signals are transmitted on a transmission line.

[0051] In a possible implementation of the second aspect, the device further includes a third resistor, the wireless transceiver is further grounded through the third resistor, and a resistance value of the third resistor is greater than a resistance value of the first resistor.

[0052] For example, the DC isolator may be a capacitor, or a device including a capacitor and a fourth resistor, wherein the capacitor and the fourth resistor form a series circuit. In this case, the resistance of the fourth resistor is greater than the resistance of the first resistor and less than the resistance of the third resistor. Optionally, the fourth resistor may be integrated into the wireless transceiver.

[0053] In a possible implementation of the second aspect, the first end of the first resistor and the second end of the second resistor are connected to a bus. By implementing the above implementation, the communication device can use a wired medium to transmit signals, which can reduce the occupation of spectrum resources.

[0054] In a third aspect, the present application provides a communication system, comprising a first plurality of node devices connected based on a first transmission line, the first plurality of node devices comprising the device described in at least one of the first and second aspects above, or comprising at least one of the devices of any possible implementation of the first aspect and any possible implementation of the second aspect above.

[0055] In a possible implementation of the third aspect, the system further includes a second plurality of node devices connected based on a second transmission line, and the second plurality of node devices include the device described in at least one of the first and second aspects above, or include at least one of the devices of any possible implementation of the first aspect and any possible implementation of the second aspect.

[0056] In a possible implementation of the third aspect, the first plurality of node devices include a first node device, which includes any one of the devices of the second aspect or any possible implementation of the second aspect; the second plurality of node devices include a second node device, which includes any one of the devices of the second aspect or any possible implementation of the second aspect; the first node device and the second node device are used to implement wireless communication between the first plurality of node devices and the second plurality of node devices.

[0057] In a possible implementation of the third aspect, the first plurality of node devices include a third node device, and the third node device includes any one of the current shunt devices including a power divider or a switching element described in the first aspect; the second plurality of node devices include a fourth node device, and the fourth node device includes any one of the devices of the second aspect or any possible implementation of the second aspect; the fourth node device is used to implement wireless communication between the third node device and the second plurality of node devices.

[0058] In a possible implementation of the third aspect, the first plurality of node devices include a fifth node device, and the fifth node device includes any one of the current shunt devices including a power divider or a switching element described in the first aspect; the second plurality of node devices include a sixth node device, and the sixth node device includes any one of the current shunt devices including a power divider or a switching element described in the first aspect; and the communication between the fifth node device and the sixth node device is wireless communication.

[0059] In a possible implementation manner of the third aspect, the head node device and / or the end node device in the first plurality of node devices includes any one of the devices of the second aspect or any possible implementation manner of the second aspect.

[0060] In a possible implementation of the third aspect, the first node device and / or the last node device among the first plurality of node devices include an AC isolator and a DC isolator, the AC isolator is used to output at least part of the DC current from the first transmission line, and the DC isolator is used to output at least part of the AC current from the first transmission line, and / or output at least part of the AC current in the received current to the first transmission line.

[0061] In a possible implementation of the third aspect, the first plurality of node devices include a first group of node devices, each node device in the first group of node devices includes any one of the current branching devices including a duplexer described in the first aspect above, and the clock signal in the first group of node devices is a first frequency.

[0062] In a possible implementation of the third aspect, the first plurality of node devices include a second group of node devices, each node device in the second group of node devices includes any one of the current branching devices including a duplexer described in the first aspect above, and the clock signal in the second group of node devices is a second frequency, which is different from the first frequency.

[0063] In a possible implementation of the third aspect, the first plurality of node devices include a master node and at least one slave node, the master node includes any one of the devices of the first aspect or any possible implementation of the first aspect, the slave node includes any one of the devices of the first aspect and the second aspect, or includes any one of the devices of any possible implementation of the first aspect and any one of the devices of any possible implementation of the second aspect, and the master node is used to allocate time domain resources and / or frequency domain resources of the at least one slave node.

[0064] In a fourth aspect, the present application provides a vehicle comprising the device described in at least one of the first and second aspects above, or comprising at least one of the devices in any possible implementation of the first aspect and any possible implementation of the second aspect, or comprising the system in the third aspect or any possible implementation of the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] FIG1 is a schematic diagram of the structure of a node provided in an embodiment of the present application;

[0066] FIG2A is a circuit structure diagram of a current shunting device provided in an embodiment of the present application;

[0067] FIG2B is a circuit structure diagram of another current shunting device provided in an embodiment of the present application;

[0068] FIG3A is a circuit structure diagram of a communication device provided in an embodiment of the present application;

[0069] FIG3B is a circuit structure diagram of another communication device provided in an embodiment of the present application;

[0070] FIG4 is a circuit structure diagram of another communication device provided in an embodiment of the present application;

[0071] FIG5A is a schematic diagram of a wired network provided in an embodiment of the present application;

[0072] FIG5B is a schematic diagram of another wired network provided in an embodiment of the present application;

[0073] FIG6 is a schematic diagram of a wireless communication and wired communication converged network provided in an embodiment of the present application;

[0074] FIG7A is a schematic diagram of a network in which wired communication and wireless communication serve as backup for each other, provided in an embodiment of the present application;

[0075] FIG7B is a schematic diagram of another networking configuration in which wired communication and wireless communication serve as backup for each other, provided in an embodiment of the present application;

[0076] FIG8 is a schematic diagram of another networking embodiment of the present application in which wired communication and wireless communication serve as backup for each other;

[0077] FIG9 is a schematic diagram of a wired network for multi-communication domain synchronization provided in an embodiment of the present application;

[0078] FIG10 is another networking diagram provided in an embodiment of the present application. DETAILED DESCRIPTION

[0079] It should be noted that the prefixes such as "first" and "second" used in this application are only for distinguishing different description objects, and do not have any limiting effect on the position, order, priority, quantity or content of the described objects. For example, if the described object is a "field", then the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the described object is a "level", then the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of described objects is not limited by the prefix and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the described object is a "device," then the "first device" and the "second device" can be the same device, the same type of device, or different types of devices. For another example, if the described object is "information," then the "first information" and the "second information" can be information of the same content or information of different contents. In short, the use of prefixes to distinguish the described objects in the embodiments of this application does not constitute a limitation on the described objects. For the description of the described objects, please refer to the description in the context of the claims or embodiments, and the use of such prefixes should not constitute an unnecessary limitation.

[0080] It should be noted that the descriptions used in the embodiments of the present application, such as "at least one of a1, a2, ..., and an" and the like, include any one of a1, a2, ..., and an existing alone, and any combination of any multiple of a1, a2, ..., and an, each of which can exist alone. For example, the description "at least one of a, b, and c" includes a alone, b alone, c alone, a combination of a and b, a combination of a and c, a combination of b and c, or a combination of ab and c.

[0081] To facilitate understanding, the following first introduces relevant terms that may be involved in the embodiments of this application.

[0082] (1) AC isolator

[0083] AC Block is also called an AC isolator.

[0084] An AC circuit breaker is a component that conducts direct current while blocking alternating current. For example, an AC circuit breaker can be an electronic component such as an inductor or a magnetic bead. In the embodiments of this application, direct current can be referred to as DC, and alternating current can be referred to as AC.

[0085] (2) DC breaker

[0086] DC Block is also called DC Block.

[0087] A DC breaker is a component that can conduct AC current and block DC current. For example, a DC breaker can be an electronic component such as a capacitor or a diode.

[0088] (3) Coaxial cable

[0089] Coaxial cable is a cable that transmits electromagnetic energy in the radio frequency range. It is also called radio frequency cable. Coaxial cable consists of an inner conductor and an outer conductor that are coaxial with each other, and a dielectric that supports the inner and outer conductors.

[0090] Referring to Figure 1 , which is a schematic diagram of the structure of a node provided in an embodiment of the present application, the node includes a power management unit and a signal processing unit, wherein the power management unit is connected to the signal processing unit.

[0091] Exemplarily, the signal processing unit includes a radio frequency unit and a baseband processing unit, wherein the power management unit is connected to the baseband processing unit. Connecting the power management unit to the signal processing unit includes: connecting the power management unit to the baseband processing unit.

[0092] Here, the signal processing unit is configured with a signal codec, and the channel codec supports the node to perform wireless communication and / or wired communication. Exemplarily, the signal processing unit is configured with a signal codec, specifically the baseband processing unit is configured with a channel codec.

[0093] A power management unit (PMU) is a single-chip microcontroller used to control the power supply function of a digital platform. It can integrate several traditionally separate power management devices, such as DC / DC converters and low dropout linear regulators (LDOs), into a single package. This reduces the number of components and board space while achieving higher power conversion efficiency and lower power consumption.

[0094] The functions of the baseband processing unit include but are not limited to baseband signal modulation and demodulation, channel equalization, channel encoding and decoding, scrambling and descrambling, data verification, etc.

[0095] The RF unit is used to transform RF signals. For example, the RF unit converts received RF signals from a higher frequency band to a lower frequency band for further processing by the baseband processing unit, and converts RF signals output by the baseband processing unit from a lower frequency band to a higher frequency band for external output. For example, the RF unit can output RF signals through an antenna connected to it or through a cable (or transmission line) attached to it.

[0096] It should be noted that the structural diagram of the communication node shown in Figure 1 is only an example. In some possible embodiments, based on different communication requirements of the node, the node shown in Figure 1 may also include more or fewer functional entities. For example, to prevent DC input from damaging the node, the other end of the radio frequency unit in Figure 1 may be connected to the output interface via a DC block. For another example, to achieve wireless communication between the nodes, the node shown in Figure 1 may also include a wireless transceiver, such as an antenna, which is not specifically limited here.

[0097] In embodiments of the present application, when multiple nodes (such as the nodes shown in FIG. 1 ) communicate with each other using wired communication, to reduce the length of the wiring harness required, these multiple nodes can be connected to a transmission line, which can be a bus. To allow as many nodes as possible to be connected to the transmission line and further reduce wiring harness length, embodiments of the present application provide current shunt devices, through which nodes can be connected to the transmission line.

[0098] Here, a transmission line refers to a cable used to transmit electromagnetic energy (e.g., radio frequency signals, power signals, etc.). It can also be understood as a cable used to transmit electrical energy and signals. When a transmission line is used to transmit both radio frequency and power signals, it can be, for example, a coaxial cable or radio frequency cable, a two-wire transmission line, or a microstrip transmission line. When a transmission line is used to transmit only radio frequency signals, it can be, for example, a waveguide transmission line, an optical fiber, a two-wire transmission line, or a microstrip transmission line.

[0099] The current shunt device includes a first resistor, a second resistor, a first AC breaker, a second AC breaker and a DC-AC shunt unit. The first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, and the second end of the second resistor is used to output current. The first resistor is connected in parallel with the first AC breaker, and the second resistor is connected in parallel with the second AC breaker. The first end of the DC-AC shunt unit is connected to the second end of the first resistor, the second end of the DC-AC shunt unit is used to output DC, and the third end of the DC-AC shunt unit is used to input and / or output AC. Preferably, the resistance value of the first resistor is equal to the resistance value of the second resistor.

[0100] Optionally, the second end of the second resistor can also be used to input current, and the first end of the first resistor is used to output current.

[0101] Furthermore, the DC-AC shunt unit includes at least one AC breaker and at least one DC breaker, wherein the at least one AC breaker is used to output at least part of the DC current in the current from the first end of the DC-AC shunt unit to the second end of the DC-AC shunt unit, and the at least one DC breaker is used to output at least part of the AC current in the current from the first end of the DC-AC shunt unit to the third end of the DC-AC shunt unit, and / or output at least part of the AC current in the current from the third end of the DC-AC shunt unit to the first end of the DC-AC shunt unit.

[0102] Among them, DC carries power signals, and AC carries data signals or control signals.

[0103] In one implementation, a first end of the first resistor and a second end of the second resistor are connected to a bus.

[0104] The circuit structure of the current branching device is described in detail below based on FIG. 2A and FIG. 2B .

[0105] Before introducing the circuit structure, in the embodiments of the present application, the directions of various components in the circuit are first defined. For components such as resistors, AC isolators, and DC isolators in the circuit, if the connection direction of their two ends is up and down, the end located on the upper side of the device is called the first end of the device, and the end located on the lower side of the device is called the second end of the device; if the connection direction of their two ends is left and right, the end located on the left side of the device is called the first end of the device, and the end located on the right side of the device is called the second end of the device.

[0106] Refer to FIG. 2A , which is a circuit structure diagram of a current shunt device provided in an embodiment of the present application.

[0107] In Figure 2A, the current shunt device includes a resistor R1, a resistor R2, an AC isolator ACBlock1, an AC isolator ACBlock2 and a DC-AC shunt unit. R1 is the above-mentioned first resistor, R2 is the above-mentioned second resistor, ACBlock1 is the above-mentioned first AC isolator, and ACBlock2 is the above-mentioned second AC isolator. The connection method between the resistor R1, the resistor R2, the AC isolator ACBlock1 and the AC isolator ACBlock2 is not repeated here.

[0108] In Figure 2A, the DC-AC shunt unit specifically includes an AC breaker ACBlock3, an AC breaker ACBlock4, a resistor R3, and a DC breaker DCBlock1, wherein ACBlock3 and R3 are connected in parallel, the first end of R3 is connected to the second end of R1, the second end of R3 is connected to the first end of ACBlock4 and the first end of DCBlock1, respectively, the second end of ACBlock4 is the second end of the DC-AC shunt unit, the second end of DCBlock1 is the third end of the DC-AC shunt unit, and the resistance of R3 is greater than the resistance of R1.

[0109] Furthermore, in FIG2A , the DC-AC shunt unit further includes a DC breaker DCBlock2 and a resistor R4, wherein DCBlock2 and R4 form a series circuit, a first end of DCBlock1 is connected to a first end of the series circuit, a second end of the series circuit is grounded, and a resistance value of R4 is greater than a resistance value of R3.

[0110] In the embodiment of the present application, the current includes an AC current, and the AC current carries the radio frequency signal. Based on the size relationship between the above-mentioned resistors R1, R2, R3, and R4, the transmission of the radio frequency signal in the current shunt device satisfies the following two conditions: (1) the loss of the radio frequency signal when transmitting between the first end of the first resistor and the third end of the DC-AC shunt unit is equal to the loss of the radio frequency signal when transmitting between the first end of the second resistor and the third end of the DC-AC shunt unit; (2) the loss of the radio frequency signal when transmitting between the first end of the first resistor and the second end of the second resistor is less than the loss of the radio frequency signal when transmitting between the first end of the first resistor and the third end of the DC-AC shunt unit. Similarly, the loss of the radio frequency signal when transmitting between the first end of the first resistor and the second end of the second resistor is also less than the loss of the radio frequency signal when transmitting between the second end of the second resistor and the third end of the DC-AC shunt unit.

[0111] For example, the resistance values ​​of resistors R1, R2, R3, and R4 can be determined based on the system impedance matching requirements. After the resistance values ​​of resistors R1, R2, R3, and R4 are determined, the types and values ​​of AC blockers AC Block 1, AC Block 2, AC Block 3, and AC Block 4, and DC blockers DC Block 1 and DC Block 2 can be further determined based on the frequency bands of the power signal and RF signal transmitted on the transmission line. For example, the types of AC blockers include, but are not limited to, inductors and ferrite beads, and the types of DC blockers include, but are not limited to, capacitors and diodes.

[0112] The AC isolator in Figure 2A needs to have good DC current carrying capacity (i.e., the DC resistance is as low as possible) so that it does not saturate or burn out within a preset current range. The AC impedance of the AC isolator must be sufficiently large (for example, greater than a preset impedance threshold) to prevent the AC signal from passing through. The DC isolator in Figure 2A must have a sufficiently low, or even negligible, impedance to the AC signal.

[0113] For example, based on the size relationship of the resistors in Figure 2A, it can be seen that when the signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when the signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when the signal is input from the third end of the DC-AC shunt unit, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0114] In Figure 2A, the AC isolator has the function of isolating AC and passing DC, while the DC isolator has the function of isolating DC and passing AC. The current shunt device shown in Figure 2A is suitable for scenarios where data signals / control signals and power signals are transmitted simultaneously on the transmission line. Taking the first end of the first resistor in Figure 2A as the input end as an example, the RF signal and power signal are divided within the current shunt device. After passing through resistor R1, the RF signal is divided into two RF signals. One RF signal is transmitted to the second end of R2 through R2, and the other RF signal is transmitted to the third end of the DC-AC shunt unit through R3 and DC Block1. The power signal is divided into two power signals through AC Block1. One power signal is transmitted to the second end of R2 through AC Block2, and the other power signal is transmitted to the second end of the DC-AC shunt unit through AC Block3 and AC Block4. It can be seen that AC Block4 can prevent AC signals from damaging the node's power management unit. DC Block1 can prevent DC input from damaging the signal processing unit, and DC Block2 can prevent DC loss caused by the power signal passing through R4. In this way, the current splitting device shown in FIG. 2A can solve the problem of splitting the signal source and the power supply signal, thereby realizing the transmission of the signal source and the power supply signal on the same transmission line.

[0115] In some possible embodiments, the current splitting device shown in Figure 2A also includes a power divider or a switching element, the first end of the power divider or the first end of the switching element is connected to the third end of the DC-AC splitter unit, the second end of the power divider or the second end of the switching element is connected to the wireless transceiver, the third end of the power divider or the third end of the switching element is used to input and / or output AC, the first end of the switching element is conductive to the second end of the switching element or the third end of the switching element, and the power divider is used to distribute the signal power on the first end of the power divider to the second end of the power divider and the third end of the power divider, or to merge the signal power on the second end of the power divider and the signal power on the third end of the power divider into the first end of the power divider.

[0116] Exemplarily, the wireless transceiver may be provided by a node connected to the current shunt device shown in FIG. 2A , and the wireless transceiver may be, for example, an antenna.

[0117] A power splitter, also known as a power divider, is a device that splits one input signal into two or more equal or unequal outputs. It can also combine multiple signal paths into a single output, also known as a combiner. Power splitters can thus enable wired and / or wireless communication link transmission.

[0118] Here, the switch element has two states, closed and open, each state corresponding to a communication mode. Any communication mode of wired communication and wireless communication can be selected through the switch element.

[0119] Furthermore, the current splitting device shown in FIG2A may also include a wireless transceiver, wherein the wireless transceiver is connected to the power divider or the switch element.

[0120] Among them, when the wireless transceiver is connected to the switch element, when the switch element is in a closed state, the wireless transceiver is in an unusable state, that is, wired communication is selected; when the switch element is in an open state, the wireless transceiver is in an usable state, that is, wireless communication is selected.

[0121] In some possible embodiments, the current splitting device shown in FIG2A further includes a duplexer, wherein the third terminal of the DC / AC splitting unit is connected to the duplexer, and the duplexer is configured to separate the AC into a first-frequency AC signal and a second-frequency AC signal, or to combine the first-frequency AC signal and the second-frequency AC signal into the AC. The first-frequency AC signal is a data signal or a control signal, and the second-frequency AC signal is a clock signal.

[0122] It can be seen that the current splitting device is configured with a duplexer, which can solve the branching of RF signals, clock signals and power signals, and realize the transmission of RF signals, clock signals and power signals on the same transmission line.

[0123] In some possible embodiments, to reduce the consumption of the components in FIG2A , the present application also provides a circuit diagram of a current shunt device, as shown in FIG2B . Compared to the current shunt device shown in FIG2A , the current shunt device shown in FIG2B saves one AC circuit breaker and one DC circuit breaker while achieving the same function.

[0124] In Figure 2B, the current shunt device includes a resistor R1, a resistor R2, an AC isolator ACBlock1, an AC isolator ACBlock2 and a DC-AC shunt unit. R1 is the above-mentioned first resistor, R2 is the above-mentioned second resistor, ACBlock1 is the above-mentioned first AC isolator, and ACBlock2 is the above-mentioned second AC isolator. The connection method between the resistor R1, the resistor R2, the AC isolator ACBlock1 and the AC isolator ACBlock2 is not repeated here.

[0125] In Figure 2B, the DC-AC shunt unit specifically includes an AC breaker ACBlock3 and a DC breaker DCBlock1, wherein the first end of ACBlock3 and the first end of DCBlock1 are respectively connected to the second end of R1, the second end of ACBlock3 is the second end of the DC-AC shunt unit, and the second end of DCBlock1 is the third end of the DC-AC shunt unit.

[0126] Furthermore, in FIG2B , the DC / AC branch unit further includes a resistor R3 , wherein the second end of DCBlock1 is grounded through R3 , and the resistance of R3 is greater than the resistance of R1 .

[0127] Alternatively, in FIG2B , DCBlock1 may be, for example, a capacitor. Alternatively, DCBlock1 may be a device including a capacitor and a resistor R4, wherein the capacitor and resistor R4 are connected in series. In this case, the resistance of R4 is greater than that of R1 and less than that of R3. For example, in DCBlock1, when the capacitor and resistor R4 are connected in series, resistor R4 may be located below the capacitor.

[0128] It can be understood that in FIG2B , the resistance values ​​of the resistors and the types and values ​​of the AC isolators and DC isolators can be determined by referring to the description of the corresponding contents in FIG2A , which will not be repeated here.

[0129] For example, based on the size relationship of each resistor in Figure 2B, it can be seen that when the signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when the signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the third end of the DC-AC shunt unit; when the signal is input from the third end of the DC-AC shunt unit, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0130] In FIG2B , based on the functions of the AC isolator and the DC isolator, the current shunt device shown in FIG2B is also applicable to scenarios where data signals / control signals and power signals are transmitted simultaneously on a transmission line. The first end of the first resistor in FIG2B is used as an input end to illustrate the branching of the RF signal and the power signal in the current shunt device. The RF signal is divided into two RF signals after passing through resistor R1. One RF signal is transmitted to the second end of the second resistor through R2, and the other RF signal is transmitted to the third end of the DC-AC shunt unit through DC Block1. The power signal is divided into two power signals through AC Block1. One power signal is transmitted to the second end of the second resistor through AC Block2, and the other power signal is transmitted to the second end of the DC-AC shunt unit through AC Block3. It can be seen that DC Block1 can prevent the DC input from damaging the signal processing unit and prevent the power signal from generating DC loss through R3. In this way, the current shunt device shown in FIG2B can solve the branching of RF signals and power signals at a lower hardware cost, realizing the transmission of RF signals and power signals on the same transmission line.

[0131] In some possible embodiments, the current splitting device shown in Figure 2B also includes a power divider or a switching element, the first end of the power divider or the first end of the switching element is connected to the third end of the DC-AC splitter unit, the second end of the power divider or the second end of the switching element is connected to the wireless transceiver, the third end of the power divider or the third end of the switching element is used to input and / or output AC, the first end of the switching element is conductive to the second end of the switching element or the third end of the switching element, and the power divider is used to distribute the signal power on the first end of the power divider to the second end and the third end of the power divider, or to merge the signal power on the second end of the power divider and the signal power on the third end of the power divider into the first end of the power divider.

[0132] In one implementation, the current shunt device shown in FIG2B does not include a wireless transceiver. In this case, the wireless transceiver may be a wireless transceiver of a node connected to the current shunt device shown in FIG2B . The wireless transceiver may be an antenna, for example.

[0133] In another implementation, the current shunting device shown in FIG2B further includes a wireless transceiver.

[0134] For the description of the power divider and the switch element, please refer to the corresponding contents in the embodiment of FIG2A , which will not be repeated here.

[0135] In this way, link transmission of wired communication and / or wireless communication can be achieved through the power divider, and any one of the wired communication and wireless communication modes can be selected through the switch element.

[0136] In some possible embodiments, the current splitting device shown in FIG2B further includes a duplexer, and the third terminal of the DC / AC splitting unit is connected to the duplexer. The duplexer is configured to separate the AC into a first-frequency AC signal and a second-frequency AC signal, or to combine the first-frequency AC signal and the second-frequency AC signal into the AC. The first-frequency AC signal is a data signal or a control signal, and the second-frequency AC signal is a clock signal.

[0137] The current splitting device is equipped with a duplexer, which can solve the branching of radio frequency signals, clock signals and power supply signals, and realize the transmission of radio frequency signals, clock signals and power supply signals on the same transmission line.

[0138] In an embodiment of the present application, a communication device is also provided. When a wired network of multiple nodes is established based on a transmission line, nodes on the same transmission line can not only conduct wired communication based on the transmission line, but can also use the communication device to achieve wireless communication with other wireless communication nodes or nodes on other transmission lines with the same capabilities.

[0139] The communication device includes a first resistor, a second resistor and a wireless transceiver, the first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, the second end of the second resistor is used to output current, and the second end of the first resistor is also connected to the wireless transceiver. Preferably, the resistance value of the first resistor is equal to the resistance value of the second resistor.

[0140] Optionally, the second end of the second resistor is used for inputting current, and the first end of the first resistor is used for outputting current.

[0141] In one implementation, the first end of the first resistor and the second end of the second resistor are connected to the same transmission line, which may be a bus, for example.

[0142] Based on the different contents of the current, the communication device can have different circuit structures.

[0143] In one implementation, the current includes a direct current and an alternating current, wherein the direct current carries a power signal and the alternating current carries a data signal / control signal. In this case, the circuit structure of the communication device can be seen in FIG3A .

[0144] See Figure 3A, which is a circuit diagram of a communication device provided in an embodiment of the present application. In Figure 3A, in addition to resistors R1 and R2 and a wireless transceiver, the communication device also includes two AC blockers, ACBlock1 and ACBlock2, and a DC blocker, DC Block. Resistor R1 is the first resistor in the communication device, and resistor R2 is the second resistor in the communication device. The connection method of resistors R1 and R2 is not further described here.

[0145] In FIG3A , ACBlock1 is connected to R1 in parallel, and ACBlock2 is connected to R2 in parallel. When the communication device includes a DC Block, the second end of R1 is further connected to the wireless transceiver, including: the second end of R1 is further connected to the wireless transceiver through the DC Block.

[0146] Furthermore, in FIG3A , the communication device further includes a resistor R3 , and the wireless transceiver in the communication device is also grounded via R3 , and the resistance of R3 is greater than the resistance of R1 .

[0147] Alternatively, in Figure 3A , the DCBlock can be, for example, a capacitor. Alternatively, the DCBlock can be a device comprising a capacitor and a resistor R4, wherein the capacitor and resistor R4 form a series circuit. In this case, the resistance of R4 is greater than that of R1 and less than that of R3. For example, in the DCBlock, when the capacitor and resistor R4 form a series circuit, the second end of R1 is connected to one end of the series circuit, and the other end of the transmission circuit is grounded via R3. In some possible embodiments, R4 can also be integrated into the wireless transceiver.

[0148] Exemplarily, based on the size relationship between the resistors in Figure 3A, when the signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the wireless transceiver; when the signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the wireless transceiver; when the signal is input from the wireless transceiver, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0149] In Figure 3A, based on the functions of the AC isolator and the DC isolator, the current shunt device shown in Figure 3A is also suitable for scenarios where data signals / control signals and power signals are transmitted simultaneously on the transmission line. Taking the first end of the first resistor in Figure 3A as the input end as an example, the shunt of the RF signal and the power signal in the current shunt device is explained. The RF signal is divided into two RF signals after passing through R1. One RF signal is transmitted to the second end of the second resistor through R2, and the other RF signal is transmitted to the wireless transceiver through the DC Block. The power signal is divided into two power signals through AC Block 1. One power signal is transmitted to the second end of the second resistor through AC Block 2, and the other power signal is blocked by the DC Block to prevent the DC power supply from damaging the wireless transceiver. It can be seen that the DC Block can prevent DC input from damaging the wireless transceiver when there is a DC path between the signal and the ground in the wireless transceiver (i.e., the oscillator in the wireless transceiver is grounded), and it can also protect the power supply from being damaged.

[0150] For example, in Figure 3A , the wireless transceiver can receive radio frequency signals from the air, which are output along the transmission line from the first end of the first resistor and the second end of the second resistor, respectively. The wireless transceiver can also obtain radio frequency signals from the first end of the first resistor or the second end of the second resistor and radiate them outward. In this way, the communication device shown in Figure 3A not only solves the problem of splitting radio frequency signals and power supply signals, enabling transmission of radio frequency signals and power supply signals on the same transmission line, but also achieves the integration of wired and wireless communications based on the connected transmission line and its own wireless transceiver.

[0151] In some possible embodiments, if the oscillator within the wireless transceiver is not grounded, meaning there is no DC path between the signal within the wireless transceiver and ground, the communication device shown in Figure 3B is also suitable for scenarios where both RF and power signals are transmitted simultaneously on the transmission line. As can be seen, the communication devices in Figures 3B and 3A contain the same types and number of components, but Figure 3B differs from Figure 3A in the connection location of the DCBlock. In Figure 3B, the second end of R1 is connected to the first end of the DCBlock, and the second end of the DCBlock is grounded via resistor R3.

[0152] Alternatively, in FIG3B , the second end of the first resistor may be connected to the wireless transceiver via resistor R4. In this case, the resistance of R4 is greater than that of R1 and less than that of R3. In some possible embodiments, R4 may be integrated into the wireless transceiver.

[0153] In FIG3B , since the oscillator in the wireless transceiver is not grounded, even if the wireless transceiver is directly connected to the second end of the first resistor, the power signal on the transmission line will not damage the wireless transceiver.

[0154] In another implementation, the current only includes an alternating current, and the alternating current carries the radio frequency signal. In this case, the circuit structure of the communication device can be shown in FIG4 .

[0155] Refer to Figure 4, which is a circuit structure diagram of another communication device provided in an embodiment of the present application.

[0156] In Figure 4, the communication device shown in Figure 4 includes a resistor R1, a resistor R2 and a wireless transceiver, wherein the resistor R1 is the first resistor in the above-mentioned communication device, and the resistor R2 is the second resistor in the above-mentioned communication device. The connection method between the resistor R1, the resistor R2 and the wireless transceiver is not repeated.

[0157] Furthermore, in FIG4 , the communication device further includes a resistor R3 , and the wireless transceiver in the communication device is also grounded via R3 , and the resistance of R3 is greater than the resistance of R1 .

[0158] Optionally, in Figure 4, the communication device may further include a resistor R4, and the second end of the first resistor may be connected to the wireless transceiver device as follows: the second end of the first resistor is connected to the wireless transceiver device through the resistor R4. In this case, the resistance of R4 is greater than the resistance of R1 and the resistance of R4 is less than the resistance of R3.

[0159] Exemplarily, based on the size relationship between the resistors in Figure 4, when the signal is input from the first end of the first resistor, the power of the signal received by the second end of the second resistor is greater than the power of the signal received by the wireless transceiver; when the signal is input from the second end of the second resistor, the power of the signal received by the first end of the first resistor is greater than the power of the signal received by the wireless transceiver; when the signal is input from the wireless transceiver, the power of the signal received by the first end of the first resistor is equal to the power of the signal received by the second end of the second resistor.

[0160] The current splitter device shown in Figure 4 is suitable for scenarios where only data signals / control signals are transmitted on the transmission line. Taking the second end of R2 in Figure 4 as the input end, the RF signal is split within the current splitter device. After passing through resistor R2, the RF signal is split into two RF signals. One RF signal is transmitted through R1 to the first end of R1, and the other RF signal is transmitted to the wireless transceiver.

[0161] For example, in Figure 4 , the wireless transceiver can receive radio frequency signals from the air, which are then output along the transmission line from the first end of the first resistor and the second end of the second resistor. The wireless transceiver can also receive radio frequency signals from the first end of the first resistor or the second end of the second resistor and radiate them. In this way, the communication device shown in Figure 4 can achieve the integration of wired and wireless communications based on the connected transmission line and its own wireless transceiver.

[0162] Next, a network may be formed based on at least one of the current shunting device and the communication device described above and a plurality of nodes shown in FIG1 .

[0163] In the embodiment of the present application, the signal processing unit of the node is configured with a channel codec, which is used to support the node to perform wired communication and / or wireless communication. In other words, the channel codec can be configured accordingly according to the communication mode of the node.

[0164] In an embodiment of the present application, the networked system includes multiple node devices connected based on a first transmission line, and the multiple node devices include at least one device in the embodiments of Figures 2A, 2B, 3A, 3B and 4 above.

[0165] Exemplarily, the first transmission line can be a bus, and connecting multiple node devices in a bus-like manner can reduce the length of the wiring harness. Exemplarily, the node device can be a node (e.g., the node shown in FIG. 1 ) or the aforementioned communication device. The node device can also include a node and a current shunt device connected to the node, which is not specifically limited herein.

[0166] In one implementation, any two node devices in a plurality of node devices communicate with each other only through a first transmission line. Referring to FIG5A , FIG5A is a schematic diagram of a wired network provided by an embodiment of the present application. In FIG5A , a plurality of nodes are connected to the same transmission line (i.e., the first transmission line), where the plurality of nodes include node 1, node 2, node 3, …, node n, where n is a positive integer, node 1 is the first node on the transmission line, node n is the last node on the transmission line, and the nodes other than node 1 and node n in the plurality of nodes are intermediate nodes on the transmission line.

[0167] On a transmission line, since the first node (e.g., node 1 in FIG. 5A ) or the last node (e.g., node n in FIG. 5A ) only requires one interface to transmit and receive signals, and does not need to consider forward or backward signal transmission, the first and last nodes can be directly connected to the transmission line. However, since intermediate nodes on the transmission line need to consider both forward and backward signal transmission, they must be connected to the transmission line through a current shunt device. For example, in FIG. 5A , node 2 is connected to the transmission line through current shunt device 1, and node 3 is connected to the transmission line through current shunt device 2.

[0168] In Figure 5A, the first or last node device on a transmission line can be a node. For example, the first node device is node 1, and the last node device is node n. It can be seen that the first or last node device on the transmission line includes an AC isolator and a DC isolator. The AC isolator is used to output at least a portion of the DC current from the transmission line to a node within the node device, and the DC isolator is used to output at least a portion of the AC current from the transmission line to a node within the node device, and / or output at least a portion of the AC current received from a node within the node device to the transmission line. Each node device between the first and last node devices on the transmission line includes a corresponding node and a current shunt device connected to the node. For example, the second node device on the transmission line includes node 2 and current shunt device 1.

[0169] In Figure 5A , current splitter 1 and current splitter 2 are the current splitter devices shown in Figure 2A . For details on the connection between the current splitter devices and the nodes, as well as their circuit structure and principles, refer to the corresponding descriptions of the embodiment in Figure 2A . Any two node devices on a transmission line can communicate with each other via the transmission line.

[0170] Taking current splitter 1 as an example, it can be used to split RF and power signals between node 2 and the node immediately following node 2. Here, the node immediately following node 2 is determined based on the signal source's transmission direction. For example, if the signal source transmits from left to right, the node immediately following node 2 is node 3; if the signal source transmits from right to left, the node immediately following node 2 is node 1. It can be understood that any two node devices on this transmission line can communicate via this transmission line.

[0171] Taking the current branching device 1 as an example, it can be seen that the second end of the DC / AC branching unit in the current branching device 1 is connected to the power management unit in node 2, and the third end of the DC / AC branching unit in the current branching device 1 is connected to the radio frequency unit in node 2.

[0172] Illustratively, the current shunt device 1 may be independent of the node 2 or may be integrated into the node 2, which is not specifically limited here.

[0173] In some possible embodiments, in order to save device consumption, the current shunt device in FIG2A may also adopt the current shunt device shown in FIG2B. Referring to FIG5B, FIG5B is another wired networking schematic diagram provided in an embodiment of the present application. In FIG5B, a plurality of node devices are connected to the same transmission line, and any two node devices among the plurality of node devices perform wired communication through the transmission line. Compared with the wired networking schematic diagram shown in FIG5A, the circuit structure of the current shunt device shown in FIG2B adopted in FIG5B is simpler. On the premise of achieving the same function, the current shunt device in FIG5B can save at least one AC isolator and one DC isolator compared to the current shunt device in FIG5A. Taking the current shunt device 1 and node 2 in FIG5B as an example, the current shunt device 1 and node 2 constitute a node device, wherein the current shunt device 1 can be independent of node 2 or integrated into node 2, which is not specifically limited here.

[0174] In FIG5B , the circuit structure and principle of the current splitting device, as well as the connection method between the current splitting device and the nodes, can be specifically referred to the relevant description of FIG2B . Furthermore, the node devices in FIG5B and the connection between each node device and the transmission line can be referred to the relevant description of the embodiment of FIG5A , and will not be repeated here.

[0175] In the wired networking system shown in FIG5A or FIG5B , multiple node devices connected by the same transmission line can be considered a node group or device cluster, and the node devices within the device cluster can only communicate with each other via the transmission line. It can be understood that since the current shunt device shown in FIG2A or FIG2B is suitable for scenarios where RF signals and power signals are transmitted simultaneously on the transmission line, the wired networking system shown in FIG5A or FIG5B is also suitable for scenarios where RF signals and power signals are transmitted simultaneously on the transmission line.

[0176] Furthermore, based on the above-mentioned Figure 5A or Figure 5B, a fusion network of wired communication and wireless communication can be carried out. The networked system can also include a wireless transceiver connected to the transmission line. The wireless transceiver can be regarded as a node device. In this way, the node devices in the same device group can communicate with each other through the transmission line, and any node device in the same device group can realize wireless communication with other wireless communication nodes or node devices in other device groups with the same capabilities through the transmission line and the wireless transceiver connected to the transmission line.

[0177] Taking Figure 5B as an example, in one implementation, the device shown in Figure 3A or Figure 3B can replace any node device on a transmission line except the first and last node devices. Specifically, the current shunt device shown in Figure 3A or Figure 3B is suitable for scenarios where a transmission line simultaneously transmits RF signals and power signals. In another implementation, a wireless transceiver device (e.g., an antenna) can also be used to replace the first or last node device on a transmission line.

[0178] In some possible embodiments, the wireless transceiver device may not be obtained by performing the above-mentioned replacement operation, but by newly attaching a wireless transceiver device to the transmission line. For example, the wireless transceiver device can be directly attached to the front end or end of the transmission line in Figure 5B. When the wireless transceiver device is directly attached to the front end of the transmission line in Figure 5B, node 1 is no longer the first node device, and node 1 needs to be connected to the transmission line through a current shunt device; when the wireless transceiver device is attached to the end of the transmission line in Figure 5B, node n is no longer the last node device, and node n needs to be connected to the transmission line through a current shunt device. When the wireless transceiver device is connected to the middle of the transmission line in Figure 5B, the device shown in Figure 3A or Figure 3B is directly connected to the transmission line. In this case, the device shown in Figure 3A or Figure 3B can be regarded as a node device connected to the transmission line.

[0179] Refer to Figure 6, which is a schematic diagram of a wireless communication and wired communication converged network provided in an embodiment of the present application.

[0180] In Figure 6, the communication system includes at least a first device group and a second device group. The first device group includes a first plurality of node devices connected via a first transmission line, and the second device group includes a second plurality of node devices connected via a second transmission line. The first transmission line and the second transmission line are different transmission lines. Any two node devices in the first device group can communicate via the first transmission line, and any two node devices in the second device group can communicate via the second transmission line.

[0181] In addition, in Figure 6, the first plurality of node devices in the first device group include the device shown in Figure 3A, and the second plurality of node devices in the second device group include antenna 2. Since antenna 2 is located at the end of the second transmission line, it can be directly connected to the second transmission line. Among them, the device shown in Figure 3A is located in the middle of the first transmission line in Figure 6, and antenna 2 is located at the end of the second transmission line. Then, antenna 1 and antenna 2 can realize cross-device group communication between the first plurality of node devices in the first device group and the second plurality of node devices in the second device group.

[0182] For example, in FIG6 , the specific process of communication between node 1 in the first device group and node 5 in the second device group can be as follows: the RF unit in node 1 outputs an RF signal, which is transmitted along the first transmission line to antenna 1. Antenna 1 receives the RF signal and radiates it into the air. Antenna 2 on the second transmission line receives the RF signal radiated by antenna 1. The RF signal is transmitted along the second transmission line and current shunt device 4 to node 5. In this way, unidirectional communication is completed from node 1 in the first device group to node 5 in the second device group. Accordingly, if unidirectional communication is carried out from node 5 in the second device group to node 1 in the first device group, reference can be made to the relevant description of unidirectional communication from node 1 to node 5 described above, which will not be repeated here.

[0183] Based on FIG. 5A or FIG. 5B , a network in which wired communication and wireless communication serve as backup for each other can also be implemented between node devices in the same device group.

[0184] In one implementation, each of the multiple node devices connected to the transmission line further includes a switch element and a wireless transceiver (e.g., an antenna), and the wireless transceiver is connected to the switch element within the same node device. The switch element has two states: closed and open. Specifically, when the switch element is closed, the wireless transceiver connected to the switch element is unusable, equivalent to using wired communication. When the switch element is open, the wireless transceiver connected to the switch element is usable, equivalent to using wireless communication.

[0185] Exemplarily, the node device includes a switching element and a wireless transceiver device, which may be: the current shunt device in the node device includes a switching element and a wireless transceiver device, that is, the switching element and the wireless transceiver device are integrated in the current shunt device, and reference may be made to the description of the corresponding content in the embodiment of FIG2B ; or, the node in the node device includes a switching element and a wireless transceiver device, that is, the switching element and the wireless transceiver device are integrated in the node; or, the switching element is integrated in the current shunt device and the wireless transceiver device is integrated in the node, which is not specifically limited here.

[0186] Referring to Figure 7A, Figure 7A is a schematic diagram of a network configuration in which wired and wireless communications provide mutual backup, as provided in an embodiment of the present application. Compared to Figure 5B, Figure 7A illustrates that antennas and switch elements have been added to each node device connected to the transmission line. For example, antenna 1 and switch element 1 have been added to node 1, antenna 2 and switch element 2 have been added to current shunt device 1, antenna 3 and switch element 3 have been added to current shunt device 2, and so on. Antenna n and switch element n have been added to node n.

[0187] In Figure 7A , the connections between antenna 1, switch element 1, and other components of the first node device (i.e., node 1) or the last node device (i.e., node n) on a transmission line are illustrated using node 1 as an example. In node 1, antenna 1 is connected only to switch element 1, which is also connected to the RF unit and DC block within node 1. For node devices located in the middle of the transmission line, the connections between antenna 2, switch element 2, and node 2 are illustrated using node 2 and current shunt device 1 (see Figure 2B ) as an example. In current shunt device 1, the first end of switch element 2 is connected to the second end of the DC block, the second end of switch element 2 is connected to the RF unit within node 2, and antenna 2 is connected only to switch element 2 (e.g., antenna 2 is connected to the third end of switch element 2). In some possible embodiments, antenna 2 and switch element 2 may not be integrated into current shunt device 1. For example, antenna 2 and switch element 2 may be integrated into node 2, or switch element 2 may be integrated into current shunt device 1 while antenna 2 is integrated into node 2. This is not specifically limited here.

[0188] For example, in FIG7A , when there is environmental interference or the wireless channel transmission conditions do not meet preset conditions, the switch element in each node device on the transmission line is configured to be closed, that is, the switch is uniformly switched to use wired communication. In this way, any two node devices on the transmission line can communicate with each other via the transmission line. When the transmission line is damaged or the current shunt device in a node device on the transmission line fails, the switch element in each node device on the transmission line is configured to be open, that is, the switch is uniformly switched to use wireless communication. In this way, any two node devices on the transmission line can communicate with each other wirelessly via the corresponding antenna. In other words, the networking system shown in FIG7A implements dual-backup link transmission for wired communication and wireless communication.

[0189] In some possible embodiments, in FIG7A , the switch elements in each node device on the transmission line may not be uniformly controlled, and the switch elements corresponding to the corresponding nodes may be determined based on the actual communication requirements between the nodes. For example, assuming that all the switch elements in FIG7A are in the disconnected state, when wired communication is required between node 2 and node 3, the switch element 2 corresponding to node 2 and the switch element 3 corresponding to node 3 are in the closed state, while the switch elements corresponding to other nodes on the transmission line that do not have wired communication requirements can continue to remain in the disconnected state. Similarly, for a node with wireless communication requirements, the switch element corresponding to the node is in the disconnected state, but this does not limit the states of the switch elements corresponding to other nodes on the transmission line.

[0190] In Figure 7A, the current splitting device and the node can be independently provided, or the current splitting device can be integrated into the node. For example, the current splitting device 1 can be independent of the node 2 or integrated into the node 2, which is not specifically limited here.

[0191] In another implementation, each of the multiple node devices connected to the transmission line further includes a power splitter and a wireless transceiver (e.g., an antenna), and the wireless transceiver is connected to the power splitter within the same node device. In this case, any node device on the transmission line can select wired communication and / or wireless communication via the power splitter. For a detailed description of the power splitter, refer to the description of the power splitter in the aforementioned embodiment.

[0192] Exemplarily, the node device includes a power splitter and a wireless transceiver device, which may be: the current shunt device in the node device includes a switching element and a wireless transceiver device, that is, the switching element and the wireless transceiver device are integrated in the current shunt device, and reference may be made to the description of the corresponding content in the embodiment of FIG2B ; or, the node in the node device includes a switching element and a wireless transceiver device, that is, the switching element and the wireless transceiver device are integrated in the node; or, the power splitter is integrated in the current shunt device and the wireless transceiver device is integrated in the node, which is not specifically limited here.

[0193] See Figure 7B, which is a schematic diagram of another network configuration in which wired and wireless communications provide mutual backup, as provided in an embodiment of the present application. Compared to Figure 5B, Figure 7B includes a new antenna and power splitter within each node device. For example, antenna 1 and power splitter 1 are added to node 1, antenna 2 and power splitter 2 are added to current splitter device 1, antenna 3 and power splitter 3 are added to current splitter device 2, and so on. Node n also includes antenna n and power splitter n.

[0194] In Figure 7B , the connection between antenna 1, power divider 1, and other components of node 1 is illustrated using node 1 as an example for the first node device (i.e., node 1) or the last node device (i.e., node n) on the transmission line. In node 1, antenna 1 is connected only to power divider 1, which is also connected to the RF unit and DC block within node 1. For node devices located in the middle of the transmission line, taking node 2 and current shunt device 1 (see Figure 2B ) as an example, the connection between antenna 2, power divider 2, and node 2 can refer to the corresponding description of the embodiment in Figure 2B . In some possible embodiments, antenna 2 and power divider 2 may not be integrated into current shunt device 1. For example, antenna 2 and power divider 2 may be integrated into node 2, or power divider 2 may be integrated into current shunt device 1 while antenna 2 is integrated into node 2. This is not specifically limited here.

[0195] Here, due to the characteristics of the power divider, compared with the switch element in Figure 7A, the power divider does not have a state (closed or open) switching. Taking the communication of node 3 in Figure 7B as an example, when node 3 needs to transmit a radio frequency signal, node 3 divides the radio frequency signal to be transmitted into two paths through the power divider, one of which is transmitted through the transmission line, and the other is transmitted through its own antenna (i.e., antenna 3); when node 3 needs to receive a radio frequency signal, node 3 receives the radio frequency signals transmitted by other nodes from both the wired channel and the wireless channel through the power divider. Exemplarily, when node 3 needs to transmit a radio frequency signal, if it is detected that the transmission line is damaged or there is a current shunt device failure on the transmission line, node 3 can transmit all the radio frequency signals to be transmitted through antenna 3 in a wireless communication manner based on the power divider. When there is environmental interference or the transmission conditions of the wireless channel do not meet the preset conditions, node 3 can transmit all the radio frequency signals to be transmitted through the transmission line in a wired communication manner based on the power divider. That is, based on the networking system shown in FIG. 7B , the nodes can receive and transmit signals from wired channels and / or wireless signals through corresponding power splitters, thereby achieving dual-backup link transmission of wired communication and wireless communication.

[0196] As can be seen, the multiple node devices on the transmission line in FIG7A above all use switching elements to implement mutual backup of wired and wireless communications, while the multiple node devices on the transmission line in FIG7B all use power splitters to implement wired and / or wireless communications. In some possible embodiments, when implementing a converged network of wired and wireless communications, the multiple node devices on the transmission line may include switching elements in some cases and power splitters in others. In this case, if all the node devices on the transmission line use wired communication, all switching elements are uniformly configured to be closed; if all the node devices on the transmission line use wireless communication, all switching elements are uniformly configured to be open.

[0197] In some possible embodiments, based on Figure 7A, multiple node devices connected based on the transmission line also include a wireless transceiver connected to the transmission line. The wireless transceiver can be regarded as a node device. In this way, compared with the networking method shown in Figure 7A, the node device on the transmission line can independently control the state of the corresponding switching element according to the selected communication method.

[0198] Taking Figure 7A as an example, in one implementation, the device shown in Figure 3A or Figure 3B can replace any node device on the transmission line except the first and last node devices. The device shown in Figure 3A or Figure 3B is suitable for scenarios where RF signals and power signals are transmitted simultaneously on the transmission line. In another implementation, a wireless transceiver device (such as an antenna) can also be used to replace the first node device (i.e., node 1) or the last node device (i.e., node n) on the transmission line and directly connect to the transmission line.

[0199] In some possible embodiments, the wireless transceiver device may not be obtained by performing the above-mentioned replacement operation, but by newly attaching a wireless transceiver device to the transmission line. For example, the wireless transceiver device can be directly attached to the front end or end of the transmission line in Figure 7A. When the wireless transceiver device is directly attached to the front end of the transmission line in Figure 7A, node 1 is no longer the first node device, and node 1 needs to be connected to the transmission line through a current shunt device; when the wireless transceiver device is attached to the end of the transmission line in Figure 7A, for example, as in Figure 6 above, where antenna 2 in the second device group is attached to the end of the transmission line, node n is no longer the last node device, and node n needs to be connected to the transmission line through a current shunt device. When the wireless transceiver device is connected to the middle of the transmission line in Figure 7A, the device shown in Figure 3A or Figure 3B is directly connected to the transmission line. In this case, the device shown in Figure 3A or Figure 3B is a node device connected to the transmission line.

[0200] Referring to Figure 8 , Figure 8 is a schematic diagram of another network configuration in which wired and wireless communications serve as backup for each other, provided in an embodiment of the present application. Compared to the network diagram shown in Figure 7A , Figure 8 shows that the middle portion of the transmission line shown in Figure 8 is connected to the device shown in Figure 3A , where the wireless transceiver in Figure 3A is an antenna T. In some possible embodiments, antenna T can also be directly connected to the beginning or end of the transmission line, eliminating the need to connect the device shown in Figures 3A or 3B to the transmission line in Figure 8 .

[0201] In Figure 8, any node connected on the transmission line can independently detect the transmission and / or reception status of the signal source when the corresponding switching element is in a closed or open state, and independently configure the state of the corresponding switching element based on at least one of the transmission and reception conditions of the signal source and the principle of optimal communication performance.

[0202] The following is an example description of the state control of the switch element 2 corresponding to the node 2 in FIG8 .

[0203] Case 1: Node 2 controls switch element 2 to close

[0204] When node 2 detects that the communication performance of the wired channel is better than that of the wireless channel, node 2 controls switch element 2 to close, and node 2 communicates through the transmission line. Based on this, assuming that in Figure 8, switch element 1 of node 1 is closed and switch element 1 of node n is open, the communication between node 2 and nodes 1 and n includes:

[0205] (1) Node 2 and Node 1 communicate via a wired transmission line.

[0206] (2) Communication between node 2 and node n is achieved through antenna T, transmission line and antenna n.

[0207] Here, taking unidirectional communication from node 2 to node n as an example, the RF unit of node 2 outputs RF signal 1, which is transmitted sequentially through current shunt device 2, transmission line, and current shunt device 1 to antenna T. After receiving RF signal 1, antenna T radiates RF signal 1 into the air. Node n receives RF signal 1 radiated by antenna T through antenna n, thus completing the communication from node 2 to node n. Correspondingly, node n radiates RF signal 2 outward through antenna n, and antenna T receives RF signal 2 radiated by antenna n. RF signal 2 is transmitted sequentially through current shunt device 1, transmission line, and current shunt device 2 to node 2, thus completing the communication from node n to node 2.

[0208] In some possible embodiments, when the switch element 2 is in a closed state, the node 2 can also communicate wirelessly with other wireless communication nodes in different device groups or nodes in other device groups with the same capabilities through the transmission line and antenna T, which is not specifically limited here.

[0209] Case 2: Node 2 controls switch element 2 to be disconnected

[0210] When node 2 detects that the wireless channel communication performance is better than the wired channel communication performance, node 2 controls switch element 2 to be open, and node 2 communicates through antenna 2. Based on this, assuming that in Figure 8, switch element 1 of node 1 is in the closed state and switch element of node n is in the open state, the communication between node 2 and nodes 1 and n includes:

[0211] (1) Wireless communication between node 2 and node n is achieved through antenna 2 and antenna n.

[0212] Here, node 2 transmits radio frequency signal 1 through antenna 2 and node n receives radio frequency signal 1 through antenna n, or node n transmits radio frequency signal 2 through antenna n and node 2 receives radio frequency signal 2 through antenna 2.

[0213] (2) Communication between node 2 and node 1 is achieved through antenna 2, transmission line and antenna T.

[0214] Here, the communication between node 2 and node 1 can refer to the corresponding description of the communication process between node 2 and node n in the above situation 1, wherein node 2 is equivalent to node n in the above situation 1, and node 1 is equivalent to node 2 in the above situation 1, which will not be repeated here.

[0215] In some possible embodiments, when the switch element 2 is in the off state, the node 2 may also wirelessly communicate with other wireless communication nodes or nodes in other device groups with the same capabilities through the antenna 2, which is not specifically limited here.

[0216] In some possible embodiments, among the multiple node devices connected to the transmission line in FIG8 , some of the node devices may include switch elements and another part of the node devices may be configured with power splitters, which is not specifically limited here.

[0217] In some possible embodiments, based on the introduction of FIG. 7A , FIG. 7B and FIG. 8 , the converged networking diagram of wired communication and wireless communication may be in other forms besides the converged networking diagram shown in FIG. 6 .

[0218] Assume that the system after integrated networking includes a first device group and a second device group, wherein the first device group includes a first plurality of node devices connected based on a first transmission line, and the second device group includes a second plurality of node devices connected based on a second transmission line, and the first transmission line and the second transmission line are not the same transmission line.

[0219] In one implementation, the first device group adopts the networking method of the first device group shown in FIG. 6 , and the second device group adopts any one of the networking methods shown in FIG. 7A , FIG. 7B , or FIG. 8 .

[0220] In one implementation, the first device group may employ any of the networking methods described in Figures 7A, 7B, or 8, and the second device group may employ any of the networking methods described in Figures 7A, 7B, or 8. In other words, the networking methods of the first device group and the second device group may be the same or different, and are not specifically limited herein.

[0221] In the networking systems shown in Figures 7A, 7B and 8 above, the node can select wired communication or wireless communication by controlling the corresponding switching element, or the node can select at least one of wired communication and wireless communication through a power divider, which means that the node needs to support both wired communication and wireless communication. Therefore, the channel coding and decoding configured in the baseband processing unit in each node in the system shown in any one of Figures 7A, 7B and 8 needs to support wired communication and wireless communication. In this way, when the node performs wired communication and / or wireless communication, it can not only reuse the node's own baseband processing unit, but also reuse the node's own radio frequency unit, without adding additional processing units, which is conducive to reducing the deployment cost of the network.

[0222] In some possible embodiments, based on the wired networking shown in the aforementioned Figure 5A or Figure 5B, node devices within the same device group can operate in different frequency bands at the same time, and there is no overlap between different frequency bands. In order to prevent interference, each of the multiple node devices connected to the transmission line also includes a duplexer, so that the power signal, radio frequency signal and clock signal can be transmitted on the same transmission line, wherein the power signal is carried by direct current, and the radio frequency signal and clock signal are carried by alternating current.

[0223] Here, a duplexer can isolate signals of different frequency bands. A duplexer is generally composed of two sets of bandpass filters with different frequencies to prevent the transmitting and receiving signals of the local machine from interfering with each other.

[0224] In an embodiment of the present application, a duplexer is used to combine or separate RF signals and clock signals. For example, within a node device, for a node that outputs a clock signal, the function of the duplexer is to combine the clock signal and the RF signal. For a node that receives a clock signal, the function of the duplexer is to separate the clock signal and the RF signal.

[0225] Exemplarily, the node device includes a duplexer, which may be: the current shunt device within the node device includes a duplexer, that is, the duplexer is integrated into the current shunt device; or, the node within the node device includes a duplexer, that is, the duplexer is integrated into the node, which is not specifically limited here.

[0226] Referring to Figure 9 , which is a schematic diagram of a wired networking for multi-communication domain synchronization provided by an embodiment of the present application, Figure 9 , compared to Figure 5B , adds a duplexer to each node device. For example, duplexer 1 is added to node 1, duplexer 2 is added to current shunt device 1, duplexer 3 is added to current shunt device 2, ..., and duplexer n is added to node n.

[0227] In Figure 9 , in the first node device (i.e., node 1) or the last node device (i.e., node n) on the transmission line, node 1 is used as an example to illustrate the connection between duplexer 1 and other components of node 1: in node 1, the first end of duplexer 1 is connected to the transmission line via a DC block DCBlcok, the second end of duplexer 1 is connected to the radio frequency unit, and the third end of duplexer 1 is connected to the baseband processing unit. For the node device located in the middle of the transmission line, taking the node device composed of node 2 and current shunt device 1 (see Figure 2B ) as an example, the connection between duplexer 2 and other components of node 2 can be referred to the corresponding content described in the embodiment of Figure 2B . In some possible embodiments, duplexer 2 may not be integrated into current shunt device 1. For example, duplexer 2 may be integrated into node 2, which is not specifically limited here.

[0228] Exemplarily, the system shown in FIG9 can be an orthogonal frequency division multiplexing (OFDM) system based on time division duplexing (TDD). The nodes connected on the transmission line can synchronize the transmission and reception timing according to the clock signal transmitted on the transmission line, thereby realizing the orthogonalization of the carriers of each node on the transmission line.

[0229] Assume that in Figure 9, nodes 1 and 2 working at the first frequency belong to communication domain 1, and nodes 3 and n working at the second frequency belong to communication domain 2, where the nodes in communication domain 1 use clock 1 and the nodes in communication domain 2 use clock 2. The first frequency is different from the second frequency. Based on the unified clock transmitted on the transmission line, the transmission and reception timing between the nodes in communication domain 1 and the nodes in communication domain 2 are synchronized and the carriers are orthogonal to each other, so that signals at different frequencies do not interfere with each other. In this way, multiple nodes in communication domains working at different frequencies can share the same transmission line, which also saves the length of the wiring harness to be deployed.

[0230] Here, Figure 9 only shows a schematic diagram of wired networking for multi-communication domain synchronization within the same device group. In some possible embodiments, when multiple device groups are networked for communication, such as the networking system shown in Figure 6 above, a corresponding duplexer can be configured for each node in each device group in Figure 6. In this case, if different nodes in the same device group (such as the first device group or the second device group) operate in different frequency bands, the method for synchronizing multiple communication domains within the same device group can refer to the description of the corresponding content in Figure 9; if multiple nodes in the first device group operate at a first frequency, and multiple nodes in the second device group operate at a second frequency, then the multi-communication domain synchronization between different device groups can be achieved through a wireless communication scheduling algorithm, which will not be repeated here.

[0231] It can be seen that the transmission line in the networking system shown in any of Figures 5A, 5B, 6, 7A, 7B, 8, and 9 can simultaneously transmit RF signals and power signals. In some possible embodiments, the transmission line connecting multiple node devices can also only transmit AC signals (e.g., RF signals, or RF signals and clock signals), while the power signal is not transmitted through the transmission line. In this case, the networking diagram can refer to Figure 10, for example.

[0232] FIG10 is another networking diagram provided in an embodiment of the present application. In FIG10 , multiple node devices are connected to the same transmission line, wherein node 1 is the first node device on the transmission line, and node n is the last node device on the transmission line. Since the nodes located at the beginning or end of the transmission line do not need to consider the forward and backward transmission of the signal source, node 1 and node n can be directly connected to the transmission line. The nodes located in the middle of the transmission line, such as node 2, need to be connected to the transmission line through the current shunt device 1 shown in FIG1 because they need to consider the forward and backward transmission of the signal source. The current shunt device 1 is a current shunt device corresponding to node 2, and node 2 is connected to the transmission line through the current shunt device 1. Here, node 2 and the current shunt device 1 constitute a node device. In some possible embodiments, the current shunt device 1 can be independent of node 2 or integrated into node 2, which is not specifically limited here.

[0233] In Figure 10 , any two node devices on the transmission line can communicate with each other via the transmission line. Furthermore, as can be seen from Figure 10 , the multiple node devices on the transmission line also include a wireless transceiver, which is the device shown in Figure 4 . Any node device on the transmission line can also wirelessly communicate with other wireless communication nodes or nodes within other device groups with the same capabilities via the wireless transceiver, without specific limitation here.

[0234] Here, the position, connection method and resistance size of the three resistors in the current shunt device 1 in Figure 10 are the same as the position, connection method and resistance size of the three resistors in the circuit of the device shown in Figure 4. For details, please refer to the relevant description of Figure 4 and will not be repeated here.

[0235] In some possible embodiments, improvements can be made based on FIG. 10 so that each node in FIG. 1 can select a communication mode of wired communication and / or wireless communication. For example, a switch element and a wireless transceiver (such as an antenna) are configured for each node, wherein the wireless transceiver is connected to the switch element, or a power splitter and a wireless transceiver (such as an antenna) are configured for each node, wherein the wireless transceiver is connected to the power splitter. In FIG. 10 , it can be seen that in the current shunt device 1, the first end of the first resistor and the second end of the second resistor, the second end of the first resistor is connected to the radio frequency unit in node 2. If a switch element and an antenna are configured for node 2, the antenna is only connected to the switch element, and the connection between the second end of the first resistor and the radio frequency unit in node 2 can be: the second end of the first resistor is connected to the radio frequency unit in node 2 through the switch element. Here, if a power splitter and an antenna are configured for node 2, the connection method of the power splitter and the antenna with node 2 and the current shunt device 1 can refer to the connection method described when the switch element and the antenna are configured for node 2.

[0236] In some possible implementations, if multiple nodes within the same device cluster operate at different frequencies, a duplexer can be configured for each node on the transmission line based on Figure 10 to achieve synchronization between multiple communication domains within the same device cluster. The duplexer connection method can be referenced to the duplexer connection method in Figure 9 and will not be further described here.

[0237] In an embodiment of the present application, in the networking system shown in any one of Figures 5A, 5B, 6, 7A, 7B, 8, 9 and 10, a plurality of node devices connected to the transmission line are referred to as a device group, and each device group includes a master node and at least one slave node, wherein the master node is used to allocate time domain resources and / or frequency domain resources of at least one slave node.

[0238] Exemplarily, the master node may be the first node device in the device group that has a signal processing unit, or may be the last node device in the device group that has a signal processing unit.

[0239] Here, the various networking systems provided in the above-mentioned embodiments of the present application, such as Figures 5A, 5B, 6, 7A, 7B, 8, 9 and 10, are applicable to various application scenarios, such as the following application scenarios: mobile internet (MI), industrial control, self-driving, transportation safety, Internet of Things (IoT), smart city, or smart home, etc.

[0240] In the embodiments described above, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. In addition, in the various embodiments of this application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0241] It should be noted that, those skilled in the art can see that all or part of the steps in the various methods of the above embodiments can be completed by a program to instruct relevant hardware. The program can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0242] The technical solution of the present application may essentially or contribute to the part or all or part of the technical solution in the form of a software product. The computer program product is stored in a storage medium and includes a number of instructions for enabling a device (which may be a personal computer, a server, or a network device, a robot, a single-chip microcomputer, a chip, a robot, etc.) to execute all or part of the steps of the method described in each embodiment of the present application.

Claims

1. A current shunting device, characterized in that: The device comprises: A first resistor, a second resistor, a first AC breaker, a second AC breaker and a DC / AC shunt unit, wherein the first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, and the second end of the second resistor is used to output current. The first resistor is connected in parallel with the first AC breaker, and the second resistor is connected in parallel with the second AC breaker. The first end of the DC / AC shunt unit is connected to the second end of the first resistor, the second end of the DC / AC shunt unit is used to output DC, and the third end of the DC / AC shunt unit is used to input and / or output AC.

2. The device according to claim 1, characterized in that The DC-AC shunt unit includes at least one AC breaker and at least one DC breaker. The at least one AC breaker is used to output at least part of the DC current from the first end of the DC-AC shunt unit to the second end of the DC-AC shunt unit. The at least one DC breaker is used to output at least part of the AC current from the first end of the DC-AC shunt unit to the third end of the DC-AC shunt unit, and / or output at least part of the AC current from the third end of the DC-AC shunt unit to the first end of the DC-AC shunt unit.

3. The device according to claim 2, characterized in that The at least one AC isolator includes a third AC isolator, and the at least one DC isolator includes a first DC isolator. The first end of the third AC isolator and the first end of the first DC isolator are respectively connected to the second end of the first resistor. The second end of the third AC isolator is the second end of the DC-AC shunt unit, and the second end of the first DC isolator is the third end of the DC-AC shunt unit.

4. The device according to claim 3, characterized in that The DC / AC shunt unit further includes a third resistor, the second end of the DC breaker is grounded through the third resistor, and the resistance of the third resistor is greater than the resistance of the first resistor.

5. The device according to claim 2, characterized in that The at least one AC isolator includes a third AC isolator and a fourth AC isolator, the at least one DC isolator includes a first DC isolator, and the DC-AC shunt unit also includes a third resistor. The third AC isolator is connected in parallel with the third resistor, the first end of the third resistor is connected to the second end of the first resistor, and the second end of the third resistor is respectively connected to the first end of the fourth AC isolator and the first end of the first DC isolator. The second end of the fourth AC isolator is the second end of the DC-AC shunt unit, and the second end of the first DC isolator is connected to the third end of the DC-AC shunt unit.

6. The device according to claim 5, characterized in that The at least one DC breaker also includes a second DC breaker, and the DC-AC shunt unit also includes a fourth resistor. The second DC breaker and the fourth resistor form a series circuit. The first end of the first DC breaker is connected to the first end of the series circuit, and the second end of the series circuit is grounded. The resistance of the fourth resistor is greater than the resistance of the third resistor.

7. The device according to any one of claims 1 to 6, characterized in that The DC carries power signals, and the AC carries data signals or control signals.

8. The device according to any one of claims 1 to 7, characterized in that The current shunt device also includes a duplexer, and the third end of the DC-AC shunt unit is connected to the duplexer. The duplexer is used to separate the AC into a first frequency AC signal and a second frequency AC signal, or to merge the first frequency AC signal and the second frequency AC signal into the AC.

9. The device according to claim 8, characterized in that The first frequency AC signal is a data signal or a control signal, and the second frequency AC signal is a clock signal.

10. The device according to any one of claims 3 to 7, characterized in that: The current shunt device also includes a power divider or a switching element, wherein the first end of the power divider or the first end of the switching element is connected to the third end of the DC / AC shunt unit, the second end of the power divider or the second end of the switching element is connected to a wireless transceiver, the third end of the power divider or the third end of the switching element is used to input and / or output AC, the first end of the switching element is conductive to the second end of the switching element or the third end of the switching element, and the power divider is used to distribute the signal power on the first end of the power divider to the second end of the power divider and the third end of the power divider, or to merge the signal power on the second end of the power divider and the signal power on the third end of the power divider into the first end of the power divider.

11. The device according to claim 10, characterized in that The current shunting device further includes the wireless transceiver.

12. The device according to any one of claims 1 to 11, characterized in that A first end of the first resistor and a second end of the second resistor are connected to a bus.

13. A communication device, characterized in that: The device comprises: A first resistor, a second resistor and a wireless transceiver, wherein the first end of the first resistor is used to input current, the second end of the first resistor is connected to the first end of the second resistor, the second end of the second resistor is used to output current, and the second end of the first resistor is also connected to the wireless transceiver.

14. The device according to claim 13, characterized in that The current includes an alternating current carrying a radio frequency signal.

15. The device according to claim 13 or 14, characterized in that The device also includes a first AC isolator, a second AC isolator and a DC isolator, wherein the first AC isolator is connected in parallel with the first resistor, the second AC isolator is connected in parallel with the second resistor, and the second end of the first resistor is also connected to the wireless transceiver, including: the second end of the first resistor is also connected to the wireless transceiver through the DC isolator.

16. The device according to claim 15, characterized in that The current further includes a direct current, and the direct current carries a power signal.

17. The device according to any one of claims 13 to 16, characterized in that The device further includes a third resistor, and the wireless transceiver is further grounded via the third resistor, and the resistance of the third resistor is greater than the resistance of the first resistor.

18. The device according to any one of claims 13 to 17, characterized in that A first end of the first resistor and a second end of the second resistor are connected to a bus.

19. A communication system, characterized in that: The system includes a first plurality of node devices connected based on a first transmission line, the first plurality of node devices including the device according to at least one of claims 1 to 12 and claims 13 to 18.

20. The system according to claim 19, wherein: The system further includes a second plurality of node devices connected based on a second transmission line, the second plurality of node devices including the device according to at least one of claims 1 to 12 and claims 13 to 18.

21. The system according to claim 20, wherein: The first plurality of node devices include a first node device, wherein the first node device includes the device according to any one of claims 13 to 18; The second plurality of node devices includes a second node device, the second node device including the device according to any one of claims 13 to 18; The first node device and the second node device are used to implement wireless communication between the first plurality of node devices and the second plurality of node devices.

22. The system according to claim 20 or 21, characterized in that The first plurality of node devices includes a third node device, the third node device including the device according to claim 10 or 11; The second plurality of node devices includes a fourth node device, the fourth node device including the device according to any one of claims 13 to 18; The fourth node device is used to implement wireless communication between the third node device and the second plurality of node devices.

23. The system according to any one of claims 20 to 22, characterized in that The first plurality of node devices includes a fifth node device, the fifth node device including the device according to claim 10 or 11; The second plurality of node devices includes a sixth node device, the sixth node device including the device according to claim 10 or 11; The communication between the fifth node device and the sixth node device is wireless communication.

24. The system according to any one of claims 19 to 23, wherein: The head node device and / or the end node device in the first plurality of node devices include the device according to any one of claims 13-18.

25. The system according to any one of claims 19 to 23, characterized in that The first node device and / or the last node device among the first plurality of node devices include an AC isolator and a DC isolator, the AC isolator is used to output at least part of the DC current from the first transmission line, and the DC isolator is used to output at least part of the AC current from the first transmission line, and / or output at least part of the AC current in the received current to the first transmission line.

26. The system according to any one of claims 19 to 25, characterized in that The first plurality of node devices include a first group of node devices, each node device in the first group of node devices includes the device according to claim 9, and the clock signal in the first group of node devices has a first frequency.

27. The system according to claim 26, wherein: The first plurality of node devices include a second group of node devices, each node device in the second group of node devices includes the device according to claim 9, and the clock signal in the second group of node devices has a second frequency, which is different from the first frequency.

28. The system according to any one of claims 19 to 27, wherein: The first plurality of node devices include a master node and at least one slave node, the master node includes a device as described in any one of claims 1-12, the slave node includes a device as described in any one of claims 1-18, and the master node is used to allocate time domain resources and / or frequency domain resources to the at least one slave node.

29. A vehicle, characterized in that: The vehicle comprises the device according to at least one of claims 1-18 or the system according to any one of claims 19-28.

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