CN111158961A - Cable redundancy device and cable redundancy method - Google Patents
Cable redundancy device and cable redundancy method Download PDFInfo
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- CN111158961A CN111158961A CN201911385157.XA CN201911385157A CN111158961A CN 111158961 A CN111158961 A CN 111158961A CN 201911385157 A CN201911385157 A CN 201911385157A CN 111158961 A CN111158961 A CN 111158961A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1608—Error detection by comparing the output signals of redundant hardware
- G06F11/1625—Error detection by comparing the output signals of redundant hardware in communications, e.g. transmission, interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0745—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in an input/output transactions management context
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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Abstract
The application discloses a cable redundancy device and a cable redundancy method, which comprise the following steps: the system comprises an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers; wherein at least one cable is used as a redundant cable; the input processor is used for sending an input signal to the channel switching chip and sending a fault signal to the logic controller when a certain cable has a fault; the output processor is used for receiving the output signal of the channel switching chip; the channel switching chip is used for connecting a cable, an input processor and an output processor; and the logic controller is electrically connected with the channel switching chip and the input processor respectively and is used for controlling the channel switching chip to switch signals according to whether a fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively. Therefore, the redundant design of the cable can be realized, the maintenance of the cable without shutdown is supported, and the reliability and maintainability of the server are further improved.
Description
Technical Field
The invention relates to the field of servers, in particular to a cable redundancy device and a cable redundancy method.
Background
The server is a key device used in the information industry, and in the present stage, the continuous development of the information industry puts higher reliability requirements on server equipment. The cable is a common component in the server, and due to technical limitation, the cable used by the current server has no redundant design and does not support on-line replacement. If one cable fails, the link may be abnormal, and even the whole server cannot be used normally, which causes great loss to the client.
Therefore, how to implement the redundant design of the cable is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a cable redundancy apparatus and a cable redundancy method, which can implement redundancy design of cables and support maintenance of cables without shutdown, thereby improving reliability and maintainability of servers. The specific scheme is as follows:
a cable redundancy arrangement comprising: the system comprises an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers; wherein at least one cable is used as a redundant cable;
the input processor is used for sending an input signal to the channel switching chip and sending a fault signal to the logic controller when a cable has a fault;
the output processor is used for receiving the output signal of the channel switching chip;
the channel switching chip is used for connecting a cable, the input processor and the output processor;
the logic controller is electrically connected with the channel switching chip and the input processor respectively, and is used for controlling the channel switching chip to switch signals according to whether the fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively.
Preferably, in the cable redundancy device provided in the embodiment of the present invention, the logic controller is specifically configured to control the channel switching chip to communicate cables except the redundant cable with the input processor and the output processor, respectively, when the fault signal is not received; and after receiving the fault signal, controlling the channel switching chip to communicate the redundant cable and other cables except the cable with the fault with the input processor and the output processor respectively according to the fault signal.
Preferably, in the above cable redundancy apparatus provided in the embodiment of the present invention, the output processor is further configured to send a notification signal indicating that the signal link is successfully established to the input processor according to an original signal path.
Preferably, in the redundant apparatus for cables according to the embodiment of the present invention, when the cable has three cables, that is, a first cable, a second cable, and a third cable, the third cable is used as a redundant cable, the channel switching chip has six cables, that is, a first channel switching chip, a second channel switching chip, a third channel switching chip, a fourth channel switching chip, a fifth channel switching chip, and a sixth channel switching chip, and the logic controller has two cables, that is, a first logic controller and a second logic controller.
Preferably, in the cable redundancy device provided in the embodiment of the present invention, the input processor is electrically connected to the signal terminal of the first channel switching chip, the signal terminal of the second channel switching chip, the input terminal of the first logic controller, and the input terminal of the second logic controller, respectively;
the first channel of the first channel switching chip is electrically connected with the first channel of the third channel switching chip through the first cable, the second channel is electrically connected with the second channel of the fourth channel switching chip, and the control end is electrically connected with the first output end of the first logic controller;
the first channel of the second channel switching chip is electrically connected with the first channel of the fourth channel switching chip, the second channel is electrically connected with the second channel of the fifth channel switching chip through the third cable, and the control end is electrically connected with the second output end of the first logic controller;
the signal end of the third channel switching chip is electrically connected with the output processor, the second channel is electrically connected with the second channel of the sixth channel switching chip, and the control end is electrically connected with the first output end of the second logic controller;
the signal end of the fourth channel switching chip is electrically connected with the signal end of the sixth channel switching chip, and the control end of the fourth channel switching chip is electrically connected with the first output end of the first logic controller;
the signal end of the fifth channel switching chip is electrically connected with the output processor, the first channel is electrically connected with the first channel of the sixth channel switching chip, and the control end is electrically connected with the second output end of the second logic controller;
and the control end of the sixth channel switching chip is electrically connected with the first output end of the second logic controller.
Preferably, in the cable redundancy apparatus provided in the embodiment of the present invention, the input processor is electrically connected to the input terminal of the first logic controller and the input terminal of the second logic controller through an I2C bus, respectively.
Preferably, in the cable redundancy device provided in the embodiment of the present invention, when the logic controller sends a high level to each of the channel switching chips, a first channel of each of the channel switching chips is opened, and a signal end of each of the channel switching chips is communicated with the first channel;
when the logic controller sends a low level to each channel switching chip, a second channel of each channel switching chip is opened, and a signal end of each channel switching chip is communicated with the second channel.
The embodiment of the invention also provides a cable redundancy method, which comprises the following steps:
the input processor sends an input signal to the channel switching chip, and sends a fault signal to the logic controller when a certain cable has a fault;
the output processor receives an output signal of the channel switching chip;
the channel switching chip is connected with a cable, the input processor and the output processor;
and the logic controller controls the channel switching chip to switch signals according to whether the fault signal is received or not so as to communicate the corresponding cables with the input processor and the output processor respectively.
Preferably, in the cable redundancy method provided in the embodiment of the present invention, the logic controller controls the channel switching chip to perform signal switching according to whether the fault signal is received, so as to communicate the corresponding cable with the input processor and the output processor, respectively, specifically including:
when the fault signal is not received, the logic controller controls the channel switching chip to communicate other cables except the redundant cable with the input processor and the output processor respectively; and after receiving the fault signal, the logic controller controls the channel switching chip to communicate the redundant cable and other cables except the cable with the fault with the input processor and the output processor respectively according to the fault signal.
Preferably, in the above cable redundancy method provided in the embodiment of the present invention, the method further includes:
and the output processor sends a notification signal of successful establishment of the signal link to the input processor according to the original signal path.
According to the technical scheme, the cable redundancy device and the cable redundancy method provided by the invention comprise the following steps: the system comprises an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers; wherein at least one cable is used as a redundant cable; the input processor is used for sending an input signal to the channel switching chip and sending a fault signal to the logic controller when a certain cable has a fault; the output processor is used for receiving the output signal of the channel switching chip; the channel switching chip is used for connecting a cable, an input processor and an output processor; and the logic controller is electrically connected with the channel switching chip and the input processor respectively and is used for controlling the channel switching chip to switch signals according to whether a fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively.
The invention utilizes the interaction of the input processor, the output processor, the plurality of cables, the plurality of channel switching chips and the plurality of logic controllers, can realize the redundancy design of the cables, and supports the maintenance of the cables without shutdown, thereby improving the reliability and maintainability of the server.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cable redundancy apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a cable redundancy device, as shown in fig. 1, including: an input processor 11, an output processor 21, a plurality of cables (e.g., a first cable 31, a second cable 32, and a third cable 33), a plurality of channel switching chips (e.g., MUX1, MUX2, MUX3, MUX4, MUX5, and MUX6), and a plurality of logic controllers (e.g., a first logic controller 41 and a second logic controller 42); wherein at least one cable is used as a redundant cable;
the input processor 11 is configured to send an input signal to the channel switching chip, and is further configured to send a fault signal to the logic controller when a cable has a fault; the input processor 11 is a signal transmitting end processor;
an output processor 21 for receiving an output signal of the channel switching chip; the output processor 21 is a signal receiving end processor;
a channel switching chip for connecting the cable, the input processor 11 and the output processor 21;
and the logic controller is electrically connected with the channel switching chip and the input processor 11 respectively, and is used for controlling the channel switching chip to perform signal switching according to whether a fault signal is received or not so as to communicate the corresponding cable with the input processor 11 and the output processor 21 respectively.
In the cable redundancy device provided by the embodiment of the present invention, an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers are provided; the input processor sends an input signal to the channel switching chip, and sends a fault signal to the logic controller when a certain cable has a fault; the output processor receives an output signal of the channel switching chip; the channel switching chip is connected with the cable, the input processor and the output processor; and the logic controller is electrically connected with the channel switching chip and the input processor respectively, and controls the channel switching chip to switch signals according to whether a fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively. Therefore, the redundant design of the cable can be realized, the maintenance of the cable without shutdown is supported, and the reliability and maintainability of the server are further improved.
Further, in practical implementation, in the cable redundancy device provided in the embodiment of the present invention, the logic controller is specifically configured to control the channel switching chip to communicate cables except the redundant cable with the input processor 11 and the output processor 21, respectively, when the fault signal is not received; after receiving the fault signal, the channel switching chip is controlled according to the fault signal to communicate the redundant cable and other cables except the cable with the fault with the input processor 11 and the output processor 21, respectively.
In practical implementation, in the above cable redundancy apparatus provided in the embodiment of the present invention, the output processor 21 is further configured to send a notification signal indicating that the signal link is successfully established to the input processor 11 according to the original signal path. When the notification signal is not received, it indicates that the signal link is not successful, and the cable is failed.
In specific implementation, in the cable redundancy device provided in the embodiment of the present invention, taking fig. 1 as an example, specifically taking redundancy composed of three cables as an example, when the cable has three cables, which are respectively the first cable 31, the second cable 32 and the third cable 33, the third cable 33 is used as a redundant cable, the channel switching chip has six cables, which are respectively the first channel switching chip MUX1, the second channel switching chip MUX2, the third channel switching chip MUX3, the fourth channel switching chip MUX4, the fifth channel switching chip MUX5 and the sixth channel switching chip MUX6, each channel switching chip has two channels, which are the first channel B and the second channel C, respectively, the first channel B is open in a default state, and the signal terminal a and the first channel B are connected at this time, and the logic controller has two cables, which are the first logic controller 41 and the second logic controller 42, respectively.
Further, in the cable redundancy apparatus according to the embodiment of the present invention, as shown in fig. 1, the input processor 11 is electrically connected to the signal terminal a of the first channel switching chip MUX1, the signal terminal a of the second channel switching chip MUX2, the input terminal of the first logic controller 41, and the input terminal of the second logic controller 42, respectively; specifically, the input processor 11 may transmit a first input signal to the signal terminal a of the first channel switching chip MUX1, transmit a second input signal to the signal terminal a of the second channel switching chip MUX2, and transmit a fault signal to the input terminal of the first logic controller 41 and the input terminal of the second logic controller 42, respectively, when the first cable 31 or the second cable 32 fails;
the first channel B of the first channel switching chip MUX1 is electrically connected to the first channel B of the third channel switching chip MUX3 through the first cable 31, the second channel C is electrically connected to the second channel C of the fourth channel switching chip MUX4, and the control end is electrically connected to the first output end of the first logic controller 41;
the first channel B of the second channel switching chip MUX2 is electrically connected to the first channel B of the fourth channel switching chip MUX4, the second channel C is electrically connected to the second channel C of the fifth channel switching chip MUX5 through the third cable 33, and the control end is electrically connected to the second output end of the first logic controller 41;
the signal end a of the third channel switching chip MUX3 is electrically connected to the output processor 21, the second channel C is electrically connected to the second channel C of the sixth channel switching chip MUX6, and the control end is electrically connected to the first output end of the second logic controller 42;
the signal end a of the fourth channel switching chip MUX4 is electrically connected to the signal end a of the sixth channel switching chip MUX6, and the control end is electrically connected to the first output end of the first logic controller 41;
the signal end a of the fifth channel switching chip MUX5 is electrically connected to the output processor 21, the first channel B is electrically connected to the first channel B of the sixth channel switching chip MUX6, and the control end is electrically connected to the second output end of the second logic controller 42;
the control terminal of the sixth channel switching chip MUX6 is electrically connected to the first output terminal of the second logic controller 42.
Further, in the above cable redundancy apparatus according to the embodiment of the present invention, as shown in fig. 1, the input processor 11 is electrically connected to the input terminal of the first logic controller 41 and the input terminal of the second logic controller 42 through an I2C bus, respectively.
Further, in a specific implementation, in the cable redundancy device provided in the embodiment of the present invention, when the logic controller sends a high level to each channel switching chip, the first channel B of each channel switching chip is opened, and the signal end a of each channel switching chip is communicated with the first channel B; when the logic controller sends a low level to each channel switching chip, the second channel of each channel switching chip is opened, and the signal end A of each channel switching chip is communicated with the second channel C.
Specifically, during normal operation, the first level sent by the first logic controller 41 to the first channel switching chip MUX1 and the fourth channel switching chip MUX4 is a high level, the second level sent to the second channel switching chip MUX2 is a high level, the first channel B of the first channel switching chip MUX1, the second channel switching chip MUX2 and the fourth channel switching chip MUX4 is opened, and at this time A, B is connected; the first cable 31 may transmit the first input signal to the third channel switching chip MUX3, and the second cable 32 may transmit the second input signal to the sixth channel switching chip MUX 6; the third level sent by the second logic controller 42 to the third channel switching chip MUX3 and the sixth channel switching chip MUX6 is a high level, the fourth level sent to the fifth channel switching chip MUX5 is a high level, the first channels B of the third channel switching chip MUX3, the fifth channel switching chip MUX5 and the sixth channel switching chip MUX6 are opened, and at this time A, B is connected; the third channel switching chip MUX3 may send the first output signal to the output processor 21, and the fifth channel switching chip MUX5 may send the second output signal to the output processor 21;
when the first cable 31 fails to pass the link due to a fault, the input processor 11 sends a fault signal to the input end of the first logic controller 41 and the input end of the second logic controller 42 through the I2C bus, the first level sent by the first logic controller 41 to the first channel switching chip MUX1 and the fourth channel switching chip MUX4 is a low level, the second level sent to the second channel switching chip MUX2 is a low level, the second channel C of the first channel switching chip MUX1, the second channel switching chip MUX2 and the fourth channel switching chip MUX4 is opened, and at this time A, C is connected; the second cable 32 may transmit the first input signal to the sixth channel switching chip MUX6, and the third cable 33 (redundant cable) may transmit the second input signal to the fifth channel switching chip MUX 5; the third level sent by the second logic controller 42 to the third channel switching chip MUX3 and the sixth channel switching chip MUX6 is a low level, the fourth level sent to the fifth channel switching chip MUX5 is a low level, the second channel C of the third channel switching chip MUX3, the fifth channel switching chip MUX5 and the sixth channel switching chip MUX6 is opened, and at this time A, C is connected; the third channel switching chip MUX3 may send the first output signal to the output processor 21, and the fifth channel switching chip MUX5 may send the second output signal to the output processor 21; it can be understood that the first logic controller 41 controls the MUX1, the MUX2 and the MUX4 to open the C channel, and the second logic controller 42 controls the MUX3, the MUX5 and the MUX6 to open the C channel, when the first input signal is switched to the second cable 32 and the second input signal is switched to the third cable 33, the first cable 31 can be maintained;
when the link of the second cable 32 is not passed due to a fault, the input processor 11 sends a fault signal to the input end of the first logic controller 41 and the input end of the second logic controller 42 through the I2C bus, respectively, the first level sent by the first logic controller 41 to the first channel switching chip MUX1 and the fourth channel switching chip MUX4 is a high level, the second level sent to the second channel switching chip MUX2 is a low level, the first channel B of the first channel switching chip MUX1 and the fourth channel switching chip MUX4 is opened, at this time, A, B is connected, and the second channel C of the second channel switching chip MUX2 is opened, at this time, A, C is connected; the first cable 31 may transmit the first input signal to the third channel switching chip MUX3, and the third cable 33 (redundant cable) may transmit the second input signal to the fifth channel switching chip MUX 5; the third level sent by the second logic controller 42 to the third channel switching chip MUX3 and the sixth channel switching chip MUX6 is a high level, the fourth level sent to the fifth channel switching chip MUX5 is a low level, the first channel B of the third channel switching chip MUX3 and the first channel B of the sixth channel switching chip MUX6 are opened, at this time, A, B is communicated, the second channel C of the fifth channel switching chip MUX5 is opened, at this time, A, C is communicated; the third channel switching chip MUX3 may send the first output signal to the output processor 21, and the fifth channel switching chip MUX5 may send the second output signal to the output processor 21; it is understood that the first logic controller 41 controls the MUX1 and the MUX4 to maintain the B channel, controls the MUX2 to open the C channel, controls the MUX3 and the MUX6 to maintain the B channel, and controls the MUX5 to open the C channel, when the first input signal is maintained in the first cable 31 and the second input signal is switched to the third cable 33, the second cable 32 can be maintained.
It should be noted that the present invention is not limited to three cables, and is also applicable to a redundant system with multiple cables, and when any link fails due to a fault, the redundant link can be switched to, so as to keep the system operating normally and continuously.
Based on the same inventive concept, embodiments of the present invention further provide a cable redundancy method, and since the principle of solving the problem of the cable redundancy method is similar to that of the cable redundancy apparatus, the implementation of the cable redundancy method can refer to the implementation of the cable redundancy apparatus, and repeated details are not repeated.
In specific implementation, the cable redundancy method provided by the embodiment of the invention specifically includes the following steps:
the method comprises the following steps that firstly, an input processor sends an input signal to a channel switching chip, and sends a fault signal to a logic controller when a cable has a fault;
secondly, the output processor receives the output signal of the channel switching chip;
thirdly, the channel switching chip is connected with the cable, the input processor and the output processor;
and fourthly, the logic controller controls the channel switching chip to switch signals according to whether the fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively.
In the cable redundancy method provided by the embodiment of the invention, by executing the steps, the cable can realize redundancy design, and the maintenance of the cable without shutdown is supported, so that the reliability and maintainability of the server are improved.
Further, in a specific implementation, in the cable redundancy method provided in an embodiment of the present invention, in the fourth step, the method may specifically include: when the fault signal is not received, the logic controller controls the channel switching chip to communicate other cables except the redundant cable with the input processor and the output processor respectively; after receiving the fault signal, the logic controller controls the channel switching chip to communicate the redundant cable and other cables except the fault cable with the input processor and the output processor respectively according to the fault signal.
Further, in a specific implementation, in the above cable redundancy method provided in the embodiment of the present invention, the method may further include: and the output processor sends a notification signal of successful establishment of the signal link to the input processor according to the original signal path.
For more specific working processes of the above steps, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not described herein again.
To sum up, a cable redundancy device and a cable redundancy method provided by the embodiments of the present invention include: the system comprises an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers; wherein at least one cable is used as a redundant cable; the input processor is used for sending an input signal to the channel switching chip and sending a fault signal to the logic controller when a certain cable has a fault; the output processor is used for receiving the output signal of the channel switching chip; the channel switching chip is used for connecting a cable, an input processor and an output processor; and the logic controller is electrically connected with the channel switching chip and the input processor respectively and is used for controlling the channel switching chip to switch signals according to whether a fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively. Therefore, the redundant design of the cable can be realized, the maintenance of the cable without shutdown is supported, and the reliability and maintainability of the server are further improved.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The cable redundancy device and the cable redundancy method provided by the invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A cable redundancy arrangement, comprising: the system comprises an input processor, an output processor, a plurality of cables, a plurality of channel switching chips and a plurality of logic controllers; wherein at least one cable is used as a redundant cable;
the input processor is used for sending an input signal to the channel switching chip and sending a fault signal to the logic controller when a cable has a fault;
the output processor is used for receiving the output signal of the channel switching chip;
the channel switching chip is used for connecting a cable, the input processor and the output processor;
the logic controller is electrically connected with the channel switching chip and the input processor respectively, and is used for controlling the channel switching chip to switch signals according to whether the fault signal is received or not so as to communicate the corresponding cable with the input processor and the output processor respectively.
2. The cable redundancy device according to claim 1, wherein the logic controller is specifically configured to control the channel switching chip to communicate cables other than the redundant cable with the input processor and the output processor, respectively, when the fault signal is not received; and after receiving the fault signal, controlling the channel switching chip to communicate the redundant cable and other cables except the cable with the fault with the input processor and the output processor respectively according to the fault signal.
3. The cable redundancy arrangement of claim 2, wherein the output processor is further configured to send a notification signal to the input processor of a successful establishment of the signal link according to an original signal path.
4. The cable redundancy device according to claim 3, wherein when the cable has three cables, which are a first cable, a second cable and a third cable, respectively, the third cable is regarded as a redundant cable, the channel switching chip has six cables, which are a first channel switching chip, a second channel switching chip, a third channel switching chip, a fourth channel switching chip, a fifth channel switching chip and a sixth channel switching chip, respectively, and the logic controller has two cables, which are a first logic controller and a second logic controller, respectively.
5. The cable redundancy device of claim 4, wherein the input processor is electrically connected to the signal terminal of the first channel switching chip, the signal terminal of the second channel switching chip, the input terminal of the first logic controller, and the input terminal of the second logic controller, respectively;
the first channel of the first channel switching chip is electrically connected with the first channel of the third channel switching chip through the first cable, the second channel is electrically connected with the second channel of the fourth channel switching chip, and the control end is electrically connected with the first output end of the first logic controller;
the first channel of the second channel switching chip is electrically connected with the first channel of the fourth channel switching chip, the second channel is electrically connected with the second channel of the fifth channel switching chip through the third cable, and the control end is electrically connected with the second output end of the first logic controller;
the signal end of the third channel switching chip is electrically connected with the output processor, the second channel is electrically connected with the second channel of the sixth channel switching chip, and the control end is electrically connected with the first output end of the second logic controller;
the signal end of the fourth channel switching chip is electrically connected with the signal end of the sixth channel switching chip, and the control end of the fourth channel switching chip is electrically connected with the first output end of the first logic controller;
the signal end of the fifth channel switching chip is electrically connected with the output processor, the first channel is electrically connected with the first channel of the sixth channel switching chip, and the control end is electrically connected with the second output end of the second logic controller;
and the control end of the sixth channel switching chip is electrically connected with the first output end of the second logic controller.
6. The cable redundancy arrangement of claim 5, wherein the input processor is electrically connected to the input of the first logic controller and the input of the second logic controller via an I2C bus, respectively.
7. The cable redundancy device of claim 6, wherein when the logic controller sends a high level to each of the channel switching chips, a first channel of each of the channel switching chips is opened, and a signal terminal of each of the channel switching chips is communicated with the first channel;
when the logic controller sends a low level to each channel switching chip, a second channel of each channel switching chip is opened, and a signal end of each channel switching chip is communicated with the second channel.
8. A method of cable redundancy, comprising:
the input processor sends an input signal to the channel switching chip, and sends a fault signal to the logic controller when a certain cable has a fault;
the output processor receives an output signal of the channel switching chip;
the channel switching chip is connected with a cable, the input processor and the output processor;
and the logic controller controls the channel switching chip to switch signals according to whether the fault signal is received or not so as to communicate the corresponding cables with the input processor and the output processor respectively.
9. The cable redundancy method according to claim 8, wherein the logic controller controls the channel switching chip to perform signal switching according to whether the fault signal is received, so as to communicate the corresponding cable with the input processor and the output processor, respectively, specifically comprising:
when the fault signal is not received, the logic controller controls the channel switching chip to communicate other cables except the redundant cable with the input processor and the output processor respectively; and after receiving the fault signal, the logic controller controls the channel switching chip to communicate the redundant cable and other cables except the cable with the fault with the input processor and the output processor respectively according to the fault signal.
10. The cable redundancy method of claim 9, further comprising:
and the output processor sends a notification signal of successful establishment of the signal link to the input processor according to the original signal path.
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