Communication Transceiver and Communication Transceiver System

Abstract

The present invention discloses a communication transceiver and a communication transceiver system. The communication transceiver includes a controller, a plurality of signal interface modules, and a switching switch. The controller is electrically connected to the switching switch. The signal interface module includes a first signal interface and a second signal interface. The first signal interface corresponds to an interface type of X transmit and Y receive, and the second signal interface corresponds to an interface type of Y transmit and X receive. The first signal interface and the second signal interface are arranged correspondingly to form X+Y signal paths. Different switching switches are respectively arranged on M of the signal paths that meet the set conditions, where 1≤M≤X+Y and M is an integer. Connection points that can be connected to the free ends of the switching switches are arranged on the signal paths adjacent to the signal paths where the switching switches are located. The controller is used to generate different control instructions to switch to different signal transceiver states, realizing convenient switching of different signal transceiver state modes, and having a simple structure and low cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication engineering, and particularly relates to a communication transceiver and a communication transceiver system. Background Art

[0002] At present, communication transceivers are used for signal transmission between different systems, transmitting signals to each other between systems. There are various types of communication transceivers. For example, a two-receive two-transmit transceiver, that is, two signal ports transmit and receive signals, and two signal ports send signals. Another example is a two-receive one-into-two forward transceiver, that is, one signal port normally sends signals, two signal ports receive the same signal, and two interfaces forward the signal. In addition to the above two types of communication transceivers, there are also some other types of transceivers, such as two-receive one-transmit one-forward transceivers, two-receive one-into-two forward transceivers, etc.

[0003] However, conventional communication transceivers can only implement one function corresponding to many transceiver types. In use, if you want to switch the function of the transceiver, you can only achieve it by replacing different types of transceivers. In scenarios where the functions of the transceiver need to be frequently switched, it is very inconvenient to frequently replace the transceiver, and it cannot well meet the actual communication scenario requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art that a communication transceiver can only support a single communication function. In scenarios where the functions of the transceiver need to be frequently switched, frequent replacement of the transceiver leads to inconvenient operation, low implementation efficiency, and inability to meet the actual communication scenario requirements, etc., and to provide a communication transceiver and a communication transceiver system.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a communication transceiver, which includes a controller, a plurality of signal interface modules, and a switching switch. The controller is electrically connected to the switching switch;

[0007] Among them, the signal interface module includes a first signal interface and a second signal interface;

[0008] The first signal interface corresponds to an interface type of X transmit and Y receive, and the second signal interface corresponds to an interface type of Y transmit and X receive, where X and Y are integers;

[0009] The first signal interface and the second signal interface are correspondingly arranged to form X + Y signal paths. Different switching switches are respectively arranged on M signal paths that meet the set conditions, 1 ≤ M ≤ X + Y, and M is an integer;

[0010] Among them, a connection point that can be connected to the free end of the switching switch is provided on the signal path adjacent to the signal path provided with the switching switch;

[0011] The controller is used to generate different control instructions to drive the corresponding switching switch to switch and connect to the corresponding connection point, so as to switch to different signal transceiver states;

[0012] Among them, there are at least two categories of the control instructions, and each control instruction corresponds to one signal transceiver state.

[0013] Preferably, X≥2, Y≥2.

[0014] Preferably, when X = Y = 2 and several of the switching switches are all closed, the first signal interface is connected to the corresponding second signal interface.

[0015] Preferably, when X = Y = M = 2, the switching switch includes a first switching switch and a second switching switch, and a first signal path, a second signal path, a third signal path and a fourth signal path adjacent to each other are formed between the first signal interface and the second signal interface;

[0016] Among them, the first switching switch is arranged on the first signal path, and the second switching switch is arranged on the second signal path;

[0017] The connection point corresponding to the first switching switch is arranged on the first signal path and the second signal path, and the connection point corresponding to the second switching switch is arranged on the second signal path and the third signal path;

[0018] The controller is used to control the first switching switch and / or the second switching switch to connect to the corresponding connection point according to the control instruction.

[0019] Preferably, the signal transceiver states include two-receive two-transmit state, two-receive one-to-two forward state, two-receive one-transmit one-forward state or two-receive one-transmit two-forward state.

[0020] Preferably, the switching switch includes an electronic switch.

[0021] Preferably, the switching switch includes a mechanical switch.

[0022] The present invention also provides a communication transceiver system, and the communication transceiver system includes several aforementioned communication transceivers.

[0023] Preferably, the communication transceiver system further includes a computer and several industrial control computers;

[0024] Among them, the first signal connection port of the communication transceiver is communicatively connected to the signal transceiver interface of the computer, and the second signal connection port of the communication transceiver is communicatively connected to the signal transceiver interface of the industrial control computer.

[0025] Preferably, when the communication transceiver is in different signal transceiver states, it communicates with different industrial control computers using corresponding connection methods.

[0026] The positive and progressive effects of the present invention are as follows:

[0027] By reasonably optimizing the design of the communication transceiver, specifically by using a switching switch arranged on different communication branches and switching the connection points of the switching switch according to different controls to change the connection method between communication interfaces, the function of conveniently switching the signal transceiver state of the communication transceiver is realized. Thus, when it is necessary to use transceivers with different functions, the cumbersome situation of frequently replacing transceivers is avoided, making the signal transceiver mode switching very convenient, accurate and reliable, and capable of meeting higher-demand communication scenarios; there is no need to use multiple different types of communication transceivers to achieve the effect of mode switching, and different control instructions can be directly issued to the same communication transceiver to achieve multiple mode switches; and this communication transceiver has the advantages of simple structure, low manufacturing cost, and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the communication transceiver according to Embodiment 1 of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the communication transceiver according to Embodiment 2 of the present invention.

[0030] Figure 3 It is the switch connection method of the communication transceiver under four signal transceiver states.

[0031] Figure 4 It is a schematic structural diagram of the communication transceiver system according to Embodiment 3 of the present invention.

[0032] Figure 5 It is a communication transceiver system when the communication transceiver is in the two-receive and two-transmit state according to Embodiment 4 of the present invention.

[0033] Figure 6 It is a communication transceiver system when the communication transceiver is in the two-receive and one-split-two-forward state according to Embodiment 4 of the present invention.

[0034] Figure 7 It is a communication transceiver system according to Embodiment 6 of the present invention.

[0035] Figure 8 It is a communication transceiver system according to Embodiment 7 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0036] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples.

[0037] Example 1

[0038] The embodiment of the present invention discloses a communication transceiver. Referring to Figure 1 , the communication transceiver includes a controller 3, a plurality of signal interface modules 1, and a switching switch 2. The controller is electrically connected to the switching switch 2.

[0039] Specifically, the signal interface module 1 includes a first signal interface 11 and a second signal interface 12. Both the first signal interface 11 and the second signal interface 12 include a transmission interface and a reception interface. Figure 1 In , TX represents the transmission interface, and RX represents the reception interface. The transmission interface is used to transmit signals outward, and the reception interface is used to receive signals from the outside.

[0040] The first signal interface 11 corresponds to an interface type of X transmit and Y receive, that is, it has X transmission interfaces and Y reception interfaces. The second signal interface 12 corresponds to an interface type of Y transmit and X receive, that is, it has Y transmission interfaces and X reception interfaces. And X and Y are integers.

[0041] Specifically, the first signal interface 11 or the second signal interface 12 adopted in the present invention usually has two transmission interfaces and two reception interfaces as a group of signal interfaces, that is, X = Y = 2n (n is an integer). Both the first signal interface 11 and the second signal interface 12 contain several groups of signal interfaces.

[0042] The transmission interfaces and reception interfaces of the first signal interface 11 are correspondingly arranged with the transmission interfaces and reception interfaces of the second signal interface 12 to form X + Y signal paths. Different switching switches 2 are respectively arranged on M signal paths that meet the conditions, 1 ≤ M ≤ X + Y, and M is an integer. The switching switch 2 can be a mechanical switch or an electronic switch, etc.

[0043] Among them, connection points that can be connected to the free end of the switching switch 2 are provided on the signal paths adjacent to the signal paths where the switching switch 2 is provided. Of course, connection points that can be connected to the free end of the switching switch 2 are provided on the signal paths where the switching switch 2 is located. When the switching switch 2 is connected to the connection point on the signal path where the switching switch 2 is located, the transmission interface and the reception interface on the signal path where the switching switch 2 is located are connected.

[0044] The controller 3 is used to generate different control instructions to drive the corresponding switching switch 2 to switch and connect to the corresponding connection point to switch different signal transceiver states.

[0045] Among them, it includes at least two categories of control instructions, and each control instruction corresponds to a signal transmission and reception state. The connection method of the control instruction corresponds to that of the changeover switch, so as to achieve different signal transmission and reception states.

[0046] The communication transceiver provided by this embodiment realizes the switching of communication modes by setting a changeover switch 2 between the signal paths corresponding to the signal interfaces and setting connection points on adjacent signal paths. Thus, according to the switching usage scenarios of users and by connecting to the controller 3, different modes can be set as different control instructions. Therefore, the controller 3 can directly control the connection relationship between the changeover switch 2 and the paths. Not only is the mode flexibly variable, but it can also meet the diverse needs of users. Especially in scenarios where the communication mode needs to be frequently switched, it realizes the convenient switching of the transceiver mode, and also greatly reduces the application cost. There is no need to use multiple different types of communication transceivers to achieve the effect of mode switching. Different control instructions can be directly issued to the same communication transceiver to achieve the switching of multiple modes. And the communication transceiver has the advantages of simple structure, low manufacturing cost, and convenient installation.

[0047] Embodiment 2

[0048] Refer to Figure 2 And Figure 3 , on the basis of Embodiment 1, this embodiment provides a communication transceiver.

[0049] In an implementable solution, X = Y = M = 2, that is, both the first signal interface 11 and the second signal interface 12 are two-transmission and two-reception interfaces.

[0050] Specifically, refer to Figure 2 , the changeover switch 2 includes a first changeover switch 21 and a second changeover switch 22. A first signal path, a second signal path, a third signal path, and a fourth signal path adjacent to each other are formed between the first signal interface 11 and the second signal interface 12. That is, the first signal path is only adjacent to the second signal path, the second signal path is adjacent to the first signal path and the third signal path respectively, the third signal path is adjacent to the second signal path and the fourth signal path respectively, and the fourth signal path is only adjacent to the third signal path. (RX1 / RX2 are two corresponding receiving interfaces in the first signal interface 11 and the second signal interface 12; TX1 / TX2 are two corresponding transmitting interfaces in the first signal interface 11 and the second signal interface 12)

[0051] Among them, the first changeover switch 21 is arranged on the first signal path and fixedly connected to the transmitting interface on the first signal path; the second changeover switch 22 is arranged on the second signal path and fixedly connected to the transmitting interface on the second signal path.

[0052] The connection points corresponding to the first switching switch 21 are arranged on the first signal path and the second signal path, and the connection points corresponding to the second switching switch 22 are arranged on the second signal path and the third signal path.

[0053] The controller 3 is used to control the first switching switch 21 and / or the second switching switch 22 to be connected to the corresponding connection points according to the control instruction.

[0054] The communication transceiver includes two switching switches 2, and the forms of the switching switches 2 include but are not limited to: a series of switches such as mechanical switches and electronic switches that can complete signal switching work.

[0055] The number of signal interfaces (i.e., the sending interface / receiving interface) of the first signal interface 11 / second signal interface 12 needs to be greater than or equal to four to perform multifunctional switching. Two switching switches 2 are required and can form at least four communication transmission modes.

[0056] The signal interfaces include but are not limited to: interfaces that directly generate signals by a signal generating device, and interfaces mounted on the outer panel of the signal generating device or the signal receiving device.

[0057] The signals received or sent by the signal interfaces include but are not limited to: electrical signals, optical signals and other related communication signals.

[0058] By controlling the on / off of the signal through the switching switch 2, different types of signal receiving and sending functions are realized. Among them, two receiving and two sending are specifically manifested as: two signal ports receive signals, and two signal ports send signals; two receiving and one splitting and two forwarding are specifically manifested as: two signal ports receive signals, one signal port sends signals to two signal sending ports, and the signals sent by the two signal ports are exactly the same; two receiving and one sending and one forwarding are specifically manifested as: one signal port normally receives signals, one signal port normally sends signals, and one receiving signal port forwards the signals while receiving the signals; two receiving and one splitting and two forwarding are specifically manifested as: two signal ports receive signals, and at the same time one signal port forwards the signals to two signal sending ports.

[0059] Specifically, the structure of the communication transceiver in this embodiment needs to rely on at least two receiving and two sending signal interfaces, referring to Figure 3 :

[0060] When the first switching switch 21 is connected to the connection point A and the second switching switch 22 is connected to the connection point C, TX1 and RX1 on the first signal path are connected, and TX2 and RX2 on the second signal path are connected. At this time, the multifunctional communication transceiver is in the state of two receiving and two sending, and the signal sent by TX1 is received by the corresponding RX1, and the signal sent by TX2 is received by the corresponding RX2.

[0061] When the first switching switch 21 is connected to connection point B and the second switching switch 22 is connected to connection point C, TX2 of the second signal path is connected to both TX1 of the first signal path and RX1 and RX2 of the second signal path. At this time, the multi-functional communication transceiver is in the state of two-receiving, one-splitting and two-forwarding. TX1 of the first signal path cannot send signals normally. The signals sent by TX2 of the second signal path are received by RX1 and RX2 of the first signal path and the second signal path, realizing the function of signal replication. The signals sent by TX2 of the third signal path are received by the corresponding RX2, and the signals sent by TX1 of the fourth signal path are received by the corresponding RX1.

[0062] When the first switching switch 21 is connected to connection point A and the second switching switch 22 is connected to connection point D, TX2 of the third signal path is connected to both the second signal path and RX2 of the third signal path. At this time, the multi-functional communication transceiver is in the state of two-receiving, one-sending and one-forwarding. The signals sent by TX1 of the first signal path and the fourth signal path are received by the corresponding RX1, and the signals sent by TX2 of the third signal path are received by the corresponding RX2 and are simultaneously forwarded to RX2 of the second signal path.

[0063] When the first switching switch 21 is connected to connection point B and the second switching switch 22 is connected to connection point D, TX2 of the third signal path is connected to the corresponding RX2 and is simultaneously connected to RX1 and RX2 of the first signal path and the second signal path. At this time, the multi-functional communication transceiver is in the state of two-receiving, one-turning and two-forwarding. The signals sent by TX2 of the third signal path are received by the corresponding RX2 and are simultaneously forwarded to RX1 and RX2 of the first signal path and the second signal path and can be further forwarded outward.

[0064] This embodiment designs a multi-functional communication transceiver. The switching switch 2 can be switches of different types, focusing on the change of the signal receiving and sending mode without changing the signal itself. The communication transceiver of this embodiment does not need to adopt multiple communication transceivers of different types to achieve the effect of mode switching. Different control instructions can be directly issued to the same communication transceiver to achieve multiple mode switching; and this communication transceiver has the advantages of simple structure, low manufacturing cost and convenient installation.

[0065] Embodiment 3

[0066] Referring to Figure 4 , this embodiment of the present invention discloses a communication transceiver system. The communication transceiver system includes a computer 4, several industrial control computers 5 and several of the aforementioned multi-functional communication transceivers.

[0067] Collect signals from N industrial control computers 5 into the test computer 4. There is mutual communication among the N industrial control computers 5. During normal use, the N industrial control computers 5 communicate with each other. During the test, the test computer 4 needs to collect signals sent from the N industrial control computers 5 or needs to simulate signals sent from the i-th industrial control computer 5 to the j-th industrial control computer 5.

[0068] One computer 4 is equipped with N communication transceivers. A certain interface of the computer 4 is connected to the i-th communication transceiver, and a signal interface of a communication transceiver is connected to a communication transceiver interface of an industrial control computer 5.

[0069] The computer 4 is communicatively connected to the first signal interface 11 of the communication transceiver, and the industrial control computer 5 is communicatively connected to the second signal interface 12 of the communication transceiver. The computer 4 and the industrial control computer 5 transmit information through the communication transceiver.

[0070] In this embodiment, the aforementioned communication transceiver with multiple signal transceiver modes is used in the communication transceiver system as the communication medium between the computer 4 and the industrial control computer 5, enabling the communication transceiver system to directly achieve the switching of multiple modes by issuing different control instructions to the same communication transceiver. And it has the advantages of simple structure, low manufacturing cost, and convenient installation.

[0071] Embodiment 4

[0072] Refer to Figure 5 And Figure 6 , on the basis of Embodiment 3, this embodiment discloses a communication transceiver system, and this communication transceiver system adopts the communication transceiver described in Embodiment 2 of the present invention.

[0073] The second signal interface 12 includes a first transceiver port and a second transceiver port. The first transceiver port and the second transceiver port are respectively connected to the first industrial control computer interface 51 and the second industrial control computer interface 52. Different industrial control computer interfaces 5 can belong to the same industrial control computer 5 or different industrial control computers 5.

[0074] At this time, the signal transceiver state of the communication transceiver can be switched to the two-receive and two-transmit state or the two-receive and one-split-two-forward state.

[0075] That is, TX1 and TX2 of the computer 4 send signals to RX1 and RX2 of the first industrial control computer interface 51 and the second industrial control computer interface 52, and TX1 and TX2 of the first industrial control computer interface 51 and the second industrial control computer interface 52 send signals to RX1 and RX2 of the computer 4; or, TX2 of the computer 4 sends signals to RX1 and RX2 of the industrial control computers of the first industrial control computer interface 51 and the second industrial control computer interface 52, and TX1 and TX2 of the first industrial control computer interface 51 and the second industrial control computer interface 52 send signals to RX1 and RX2 of the computer 4.

[0076] In this embodiment, the aforementioned communication transceiver with multiple signal transceiver modes is used in a communication method system as the communication medium between the computer 4 and the industrial control computer 5, enabling the communication transceiver system to directly issue different control instructions to the same communication transceiver to achieve switching between multiple modes. Moreover, it has the advantages of simple structure, low manufacturing cost, and convenient installation.

[0077] Embodiment 5

[0078] Referring to Figure 7 , on the basis of Embodiment 3, this embodiment discloses a communication transceiver system that uses the communication transceiver described in Embodiment 2 of the present invention.

[0079] The second signal interface 12 includes a first signal transceiver port, a second signal receiving port, and a second signal transmitting port. The first transceiver port, the second signal receiving port, and the second signal transmitting port are respectively connected to the first industrial control computer interface 51, the second industrial control computer interface 52, and the third industrial control computer interface 53. Different industrial control computer 5 interfaces can belong to the same industrial control computer 5 or different industrial control computers 5.

[0080] At this time, the signal transceiver state of the communication transceiver can be switched to a two-receiving, one-transmitting, and one-relaying state.

[0081] That is, TX1 of the computer 4 sends a signal to RX1 of the first industrial control computer interface 51, TX1 of the first industrial control computer interface 51 sends a signal to RX1 of the computer, TX2 of the third industrial control computer interface 53 sends a signal to RX2 of the computer, and moreover, TX2 of the third industrial control computer interface 53 also sends a signal to RX2 of the second industrial control computer interface 52.

[0082] In this embodiment, the aforementioned communication transceiver with multiple signal transceiver modes is used in a communication method system as the communication medium between the computer 4 and the industrial control computer 5, enabling the communication transceiver system to directly issue different control instructions to the same communication transceiver to achieve switching between multiple modes. Moreover, it has the advantages of simple structure, low manufacturing cost, and convenient installation.

[0083] Embodiment 6

[0084] Referring to Figure 8 , on the basis of Embodiment 3, this embodiment discloses a communication transceiver system that uses the communication transceiver described in Embodiment 2 of the present invention.

[0085] The second signal interface 12 includes a first signal inlet, a first signal outlet, a second signal inlet, and a second signal outlet. The first signal inlet, the first signal outlet, the second signal inlet, and the second signal outlet are respectively connected to the first industrial control computer interface 51, the second industrial control computer interface 52, the third industrial control computer interface 53, and the fourth industrial control computer interface 54. Different industrial control computer interfaces 5 can belong to the same industrial control computer 5 or different industrial control computers 5.

[0086] At this time, the signal transceiver state of the switchable communication transceiver can be switched to the two-receive-one-transmit-two-forward state.

[0087] That is, TX1 and TX2 of the third industrial control computer interface 53 and the fourth industrial control computer interface 54 send signals to RX1 and RX2 of the computer, and TX1 of the third industrial control computer interface 53 also sends signals to RX1 and RX2 of the first industrial control computer interface 51 and the second industrial control computer interface 52.

[0088] In this embodiment, the aforementioned communication transceiver with multiple signal transceiver modes is used in the communication system as the communication medium between the computer 4 and the industrial control computer 5, so that the communication transceiver system can directly switch between multiple modes by issuing different control instructions to the same communication transceiver. And it has the advantages of simple structure, low manufacturing cost, and convenient installation.

[0089] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A communication transceiver, characterized in that, The communication transceiver includes a controller, a plurality of signal interface modules, and a switching switch. The controller is electrically connected to the switching switch; Among them, the signal interface module includes a first signal interface and a second signal interface; The first signal interface corresponds to an interface type of X transmit and Y receive, and the second signal interface corresponds to an interface type of Y transmit and X receive, where X and Y are integers; The first signal interface and the second signal interface are correspondingly arranged to form X + Y signal paths. Different switching switches are respectively arranged on M of the signal paths that meet the set conditions, 1 ≤ M ≤ X + Y, and M is an integer; Among them, connection points that can be connected to the free ends of the switching switches are provided on the signal paths adjacent to the signal paths provided with the switching switches; The controller is used to generate different control instructions to drive the corresponding switching switches to switch and connect to the corresponding connection points to switch to different signal transceiver states; Among them, there are at least two categories of control instructions, and each control instruction corresponds to one signal transceiver state; When X = Y = M = 2, the switching switch includes a first switching switch and a second switching switch. A first signal path, a second signal path, a third signal path, and a fourth signal path adjacent to each other are formed between the first signal interface and the second signal interface; Among them, the first switching switch is arranged on the first signal path, and the second switching switch is arranged on the second signal path; The connection points corresponding to the first switching switch are arranged on the first signal path and the second signal path, and the connection points corresponding to the second switching switch are arranged on the second signal path and the third signal path; The controller is used to control the first switching switch and / or the second switching switch to connect to the corresponding connection points according to the control instructions; The signal transceiver states include a two-receive and two-transmit state, a two-receive and one-split and two-forward state, a two-receive and one-transmit and one-forward state, or a two-receive and one-transmit and two-forward state; The two-receive and two-transmit state is used to represent that two signal ports receive signals and two signal ports send signals; the two-receive and one-split and two-forward state is used to represent that two signal ports receive signals, one signal is sent to two signal sending ports, and the signals sent by the two signal ports are exactly the same; the two-receive and one-transmit and one-forward state is used to represent that one signal port normally receives signals, one signal port normally sends signals, and one receiving signal port forwards the signal while receiving the signal. The two-receive and one-transmit and two-forward state is used to represent that two signal ports receive signals, and at the same time one signal port forwards the signal to two signal sending ports; When in the two-receive and two-transmit state, the first switching switch is connected to connection point A, the second switching switch is connected to connection point C, and TX2 and RX2 of the second signal path are connected; When in the two-receive-one-split-two-forward state, when the first switch is connected to connection point B and the second switch is connected to connection point C, TX2 of the second signal path is connected to RX1 and RX2 of the first signal path and the second signal path. RX1 of the first signal path cannot send signals normally. The signal sent by TX2 of the second signal path is received by RX1 and RX2 of the first signal path and the second signal path. The signal sent by TX2 of the third signal path is received by the corresponding RX2. The signal sent by TX1 of the fourth signal path is received by the corresponding RX1. When in the two-receive-one-transmit-one-forward state, when the first switch is connected to connection point A and the second switch is connected to connection point D, TX2 of the third signal path is connected to the second signal path and RX2 of the third signal path. The signals sent by TX1 of the first signal path and the fourth signal path are received by the corresponding RX1. The signal sent by TX2 of the third signal path is received by the corresponding RX2 and simultaneously forwarded to RX2 of the second signal path. When in the two-receive-one-transmit-two-forward state, when the first switch is connected to connection point B and the second switch is connected to connection point D, TX2 of the third signal path is connected to the corresponding RX2 and is also connected to RX1 and RX2 of the first signal path and the second signal path at the same time. The signal sent by TX2 of the third signal path is received by the corresponding RX2 and is simultaneously forwarded to RX1 and RX2 of the first signal path and the second signal path and can be further forwarded outward.

2. The communication transceiver according to claim 1, wherein X≥2, Y≥2.

3. The communication transceiver according to claim 2, wherein, When X = Y = 2 and several of the switches are closed, the first signal interface is connected to the corresponding second signal interface.

4. The communication transceiver according to any one of claims 1-3, characterized in that The switch includes an electronic switch.

5. The communication transceiver according to any one of claims 1-3, characterized in that The switch includes a mechanical switch.

6. A communication transceiver system, characterized in that, The communication transceiver system includes several communication transceivers as described in any one of claims 1-5.

7. The communication transceiver system according to claim 6, wherein The communication transceiver system further includes a computer and several industrial control computers; Wherein, the first signal connection port of the communication transceiver is communicatively connected to the signal transceiver interface of the computer, and the second signal connection port of the communication transceiver is communicatively connected to the signal transceiver interface of the industrial control computer.

8. The communication transceiver system according to claim 7, wherein, When the communication transceiver is in different signal transceiver states, it communicates with different industrial control computers using corresponding connection methods.

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