CN107547132A - A kind of board and distributed apparatus - Google Patents
A kind of board and distributed apparatus Download PDFInfo
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- CN107547132A CN107547132A CN201710405395.7A CN201710405395A CN107547132A CN 107547132 A CN107547132 A CN 107547132A CN 201710405395 A CN201710405395 A CN 201710405395A CN 107547132 A CN107547132 A CN 107547132A
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Abstract
The embodiments of the invention provide a kind of board and distributed apparatus.The board is applied to distributed apparatus, including：Processor and visible light communication module；Wherein, it is seen that the data signal transmission port of optical communications module and processor connects；Visible light communication module has the transmission part being arranged in pairs and receiving part, visible light communication module is used for the data-signal that export processor from data signal transmission port and is converted to visible light signal, and the visible light signal that is converted to is sent from transmission part to speculum；Visible light communication module is additionally operable to the visible light signal for receiving speculum by receiving part and reflecting, and the visible light signal received is converted to and inputted through data signal transmission port to processor after data-signal.Influenceed it can easily be seen that this programme has broken away from the performance of bus and switching network and standard specification to caused by the performance of distributed apparatus.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a board card and distributed equipment.
Background
In the field of communication technology, distributed devices are widely used. Generally, distributed devices include: the main control board card and each service board card are hung on a bus exchange network. In actual operation, the bus or the switching network is used as a data signal transmission channel between the main control board card and each service board card, that is, the bus or the switching network is needed to be used when data signals such as routing messages or data messages are transmitted between the main control board card and any service board card, so that the performance and standard specification of the bus and the switching network can have great influence on the performance of the whole distributed device.
Disclosure of Invention
Embodiments of the present invention provide a distributed device and a board card, so as to get rid of the influence of the performance of a bus and a switching network and the performance of the distributed device caused by standard specifications.
The embodiment of the invention provides a board card, which is applied to distributed equipment, and comprises: a processor and a visible light communication module; wherein,
the visible light communication module is connected with a data signal transmission port of the processor;
the visible light communication module is provided with a transmitting component and a receiving component which are arranged in pair, and is used for converting the data signal output by the processor from the data signal transmission port into a visible light signal and sending the converted visible light signal from the transmitting component to the reflector; the visible light communication module is further configured to receive the visible light signal reflected by the mirror through the receiving component, convert the received visible light signal into a data signal, and input the data signal into the processor through the data signal transmission port.
Optionally, the visible light communication module has at least one pair of a transmitting component and a receiving component, the wavelength of the visible light signal emitted by each transmitting component is different, and each receiving component is configured to receive the visible light signal with the same wavelength as the visible light signal emitted by the paired transmitting component.
An embodiment of the present invention further provides a distributed device, including: the device comprises a back plate, a reflector and a plurality of board cards; wherein,
the backboard is provided with a plurality of backboard connectors, each board card is provided with a board card connector, and each board card is inserted into the corresponding backboard connector through the board card connector of the board card;
any board card is used for sending visible light signals to the reflector;
and any board card is also used for receiving the visible light signals reflected by the reflector and sent by any other board card.
Optionally, the processor of any board card is configured to process the data signal when a target board card of the data signal received through the data signal transmission port of the board card is the board card where the board card is located; and under the condition that the target board card of the data signal is not the board card of the target board card, discarding the data signal.
Optionally, a board connector provided on any board is further connected to a power signal transmission port and a management signal transmission port of the processor in the board.
Optionally, the board card includes a master control board card and a service board card;
when the number of the main control board cards is one, the main control board cards are working main control board cards; or,
when the number of the main control board cards is at least two, the heartbeat signal transmission ports of the processors of any two main control board cards are connected through a heartbeat cable;
and the processor of any main control board card is used for selecting a working main control board card from the main control board cards, and the rest main control board cards are standby main control board cards.
Optionally, the processor of the working master control board is configured to send a notification signal for indicating that the board where the processor is located is the working master control board through the self-management signal transmission port; the system is also used for determining a signal sending time slot corresponding to each board card in the distributed equipment according to a preset time slot distribution cycle, sending a clock of the system and the signal sending time slots corresponding to the board cards except the working main control board card through a management signal transmission port of the system, and storing the signal sending time slot corresponding to the board card where the system is located;
the processors of the other board cards except the working main control board card are used for acquiring the clock of the working main control board card and the signal sending time slot corresponding to the board card where the processor is located through the self management signal transmission port, synchronizing the self clock to the clock of the working main control board card, and storing the signal sending time slot corresponding to the board card where the processor is located;
the processor of the working master control board card and the processors of the service board cards are also used for sending data signals through the data signal transmission ports of the processors in the signal sending time slots stored by the processors.
Optionally, any two adjacent signal transmission time slots are separated by a guard time slot.
Optionally, the processor of the standby main control board card is further configured to reselect the working main control board card from the standby main control board cards in the available state when the working main control board card fails;
and the processor of the reselected working main control board card is used for sending a notification signal for representing that the working main control board card is switched to the self management signal transmission port through the self management signal transmission port, and sending a data signal through the self data signal transmission port in the self stored signal sending time slot.
Optionally, the distributed device blackout chassis; the back plate is fixedly installed in the shading case, a plurality of slots are formed in the shading case, and each board card is installed at a designated position in the corresponding slot respectively so that each board card is connected with the corresponding back plate connector in an inserting mode through the board card connector of the board card.
In the scheme, the interaction of the data signals between any two boards can be realized in a Visible Light Communication (VLC) mode, and the interaction of the data signals does not need to be realized in dependence on a bus or a switching network for hanging the main control board and each service board. Therefore, the performance of the whole distributed device is not influenced by the performance and the standard specification of the bus and the switching network any more, that is, the scheme gets rid of the influence of the performance and the standard specification of the bus and the switching network on the performance of the distributed device.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a board card according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a distributed device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a distributed device according to an embodiment of the present invention;
fig. 4 is a diagram illustrating the result of timeslot assignment.
The correspondence between the names of the various components in fig. 1 to 4 and the corresponding reference numerals is:
1, a processor; 2 a visible light communication module; 21 a sending part; 22 receiving a component; 4, a reflector; 5 a back plate; 6 board card connector; 7 a backplane connector; 8 heartbeat cables.
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.
In order to solve the problems in the prior art, embodiments of the present invention provide a board card and a distributed device.
A board provided by an embodiment of the present invention is first described below.
It should be noted that the board provided by the embodiment of the present invention is applied to a distributed device. The distributed device may be a router or a switch, and certainly, the type of the distributed device is not limited to this, and may be determined specifically according to an actual situation, which is not described herein any more. It should be emphasized that a board provided by the embodiment of the present invention may be any board in a distributed device. That is, the board may be a master board or a service board (e.g., a line card).
Referring to fig. 1 and fig. 3, schematic structural diagrams of a board card provided by an embodiment of the present invention are shown in the drawings. As shown in fig. 1 and 3, the board card may include: a processor 1 and a visible light communication module 2.
The visible light communication module 2 is connected to the data signal transmission port a of the processor 1.
The visible light communication module 2 has a transmitting part 21 and a receiving part 22 which are arranged in pair, the visible light communication module 2 is used for converting the data signal output from the data signal transmission port a by the processor 1 into a visible light signal and sending the converted visible light signal from the transmitting part 21 to the reflecting mirror 4 shown in fig. 3; the visible light communication module 2 is further configured to receive the visible light signal reflected by the reflector 4 through the receiving component 22, convert the received visible light signal into a data signal, and input the data signal into the processor 1 through the data signal transmission port a.
It should be noted that there are various implementation forms of the visible light communication module 2 converting the data signal into the visible light signal and converting the visible light signal into the data signal, and the following description is given by way of example.
In a specific implementation manner of the embodiment of the present invention, the transmitting part 21 may be a light emitting tube, and the receiving part 22 may be a photosensitive receiving tube. For example, the Light Emitting tube may be an LED (Light Emitting Diode), and a microchip may be attached to the LED. Thus, when the visible light communication module 2 receives a data signal (usually binary data), the microchip can sequentially encode, modulate and pre-equalize the data signal to control the LED to flash millions of times each time, wherein LED on represents 1 and LED off represents 0. It can be easily seen that the data signal received by the visible light communication module 2 is successfully converted into a visible light signal and is emitted through the LED.
In addition, after the visible light communication module 2 receives the visible light signal through the photosensitive receiving tube, it may sequentially decode, modulate and post-equalize the visible light signal to convert the visible light signal into a data signal.
As shown in fig. 3, in this scheme, each board card in the distributed device may include: a processor 1 and a visible light communication module 2 connected with a data signal transmission port a of the processor 1. In addition, the distributed device may further include a reflector 4, and by setting the surface roughness of different positions of the reflector 4 and setting the positions of the transmitting part 21 and the receiving part 22 in each board, it may be ensured that the visible light signal sent by the visible light communication module 2 in any board can be received by the visible light communication modules 2 in the other boards. The reflection mode of the reflector 4 is specifically diffuse reflection.
It should be noted that, in a use state, each board card in the distributed device is inserted into a corresponding slot provided in the distributed device, and each board card may use a slot number (for example, a slot ID) of a slot of the slot into which the board card is inserted as its own identifier.
Thus, when data signals (for example, routing messages or data messages) need to be interacted between any two boards, the processor 1 of the data signal sending party may output the data signals through its own data signal transmission port a. The data signal sent by the processor 1 of the sender may carry an identifier of a predetermined receiver (i.e., a destination board card of the data signal), for example, a slot ID of a slot into which the predetermined receiver is inserted; the data signal sent by the processor 1 of the sender may further be added with a synchronization code, so as to facilitate the receiving end to perform byte delimitation on the data signal subsequently, i.e. to identify the start frame position of the data signal. Next, the visible light communication module 2 of the sender receives the data signal, and sequentially encodes, modulates, and pre-equalizes the data signal, so as to convert the data signal into a visible light signal and send the visible light signal, so that the visible light signal is transmitted to the reflector 4. Then, the mirror 4 will reflect the received visible light signal to the visible light communication module 2 in the rest of the boards.
For the visible light communication module 2 in any board that receives the visible light signal reflected by the reflector 4, it may sequentially decode, modulate, and post-equalize the visible light signal, so as to convert the visible light signal into a data signal, and transmit the data signal to the processor 1 in the board through the data signal transmission port a. Then, the processor 1 of the board may determine whether the identifier carried in the received data signal is the identifier of the board. If the judgment result is yes, the board card is the destination board card of the data signal, so that the processor 1 of the board card can perform subsequent processing on the received data signal; if the determination result is negative, it indicates that the board is not the destination board of the data signal, and therefore, the processor 1 of the board directly discards the data signal, so as to avoid the consumption of system resources caused when processing the data signal.
In the scheme, the interaction of the data signals between any two boards can be realized in a Visible Light Communication (VLC) mode, and the interaction of the data signals does not need to be realized in dependence on a bus or a switching network for hanging the main control board and each service board. Therefore, the performance of the whole distributed device is not influenced by the performance and the standard specification of the bus and the switching network any more, that is, the scheme gets rid of the influence of the performance and the standard specification of the bus and the switching network on the performance of the distributed device.
In a specific implementation manner of the embodiment of the present invention, the visible light communication module 2 has at least one pair of a transmitting component 21 and a receiving component 22, the wavelength of the visible light signal emitted by each transmitting component 21 is different, and each receiving component 22 is configured to receive the visible light signal having the same wavelength as the visible light signal emitted by the counterpart transmitting component 21.
Note that the number of pairs of the transmitting part 21 and the receiving part 22 provided in the visible light communication module 2 of each board may be one pair, two pairs, three pairs, or three or more pairs. Specifically, for any board, when the number of pairs of the transmitting parts 21 and the receiving parts 22 is three, the number of the transmitting parts 21 and the receiving parts 22 is three, where the wavelength of the visible light signal emitted by the first transmitting part 21 may be the wavelength of red light, the wavelength of the visible light signal emitted by the second transmitting part 21 may be the wavelength of yellow light, and the wavelength of the visible light signal emitted by the third transmitting part 21 may be the wavelength of blue light. Accordingly, the first receiving part 22 (i.e. the receiving part 22 paired with the first transmitting part 21) is configured to receive the visible light signal corresponding to the wavelength of red light, the second receiving part 22 (i.e. the receiving part 22 paired with the second transmitting part 21) is configured to receive the visible light signal corresponding to the wavelength of yellow light, and the third receiving part 22 (i.e. the receiving part 22 paired with the third transmitting part 21) is configured to receive the visible light signal corresponding to the wavelength of blue light. For fig. 3, the main control board a may utilize visible light, such as red light, to implement interaction of data signals with the service board C; the main control board card A can realize the interaction of data signals with the service board card D by using the yellow visible light; the main control board a can use the blue light, i.e., the visible light, to realize the interaction of the data signal with the service board E.
It is easy to see that, by arranging a plurality of pairs of transmitting parts 21 and receiving parts 22 in the visible light communication module 2 of the board card, the main control board card a can simultaneously utilize visible lights with different wavelengths to realize interaction with data signals of each service board card, so as to realize bandwidth expansion.
In conclusion, the embodiment gets rid of the influence of the performance and the standard specification of the bus and the switching network on the performance of the distributed device.
A distributed device provided in an embodiment of the present invention is described below.
The embodiment of the invention also provides the distributed equipment. As shown in fig. 2 and 3, the distributed device includes: a back plate 5, a reflector 4 and a plurality of the above-mentioned boards.
Wherein, be provided with a plurality of backplate connectors 7 on the backplate 5, all be provided with a integrated circuit board connector 6 on every integrated circuit board, each integrated circuit board is pegged graft with corresponding backplate connector 7 through self integrated circuit board connector 6.
Any board card is used for sending visible light signals to the reflector 4; any board card is also used for receiving the visible light signals reflected by the reflecting mirror 4 and sent by any other board card.
In a specific implementation manner of the embodiment of the present invention, the processor 1 of any board card is configured to process the data signal when a target board card of the data signal received through the data signal transmission port a of the processor is a board card where the processor is located; and under the condition that the destination board card of the data signal is not the board card of the destination board card, discarding the data signal. It is easy to see that each board card can not process the data signal of the target board card which is not the own board card, thus effectively saving the system resource on each board card.
It should be noted that, in a use state, each board card in the distributed device is inserted into a corresponding slot provided in the distributed device, and each board card may use a slot number (for example, a slot ID) of a slot of the slot into which the board card is inserted as its own identifier.
Thus, when data signals (for example, routing messages or data messages) need to be interacted between any two boards, the processor 1 of the data signal sending party may output the data signals through its own data signal transmission port a. The data signal sent by the processor 1 of the sender may carry an identifier of a predetermined receiver (i.e., a destination board card of the data signal), for example, a slot ID of a slot into which the predetermined receiver is inserted; the data signal sent by the processor 1 of the sender may further be added with a synchronization code, so as to facilitate the receiving end to perform byte delimitation on the data signal subsequently, i.e. to identify the start frame position of the data signal. Next, the visible light communication module 2 of the sender receives the data signal, and sequentially encodes, modulates, and pre-equalizes the data signal, so as to convert the data signal into a visible light signal and send the visible light signal, so that the visible light signal is transmitted to the reflector 4. Then, the mirror 4 will reflect the received visible light signal to the visible light communication module 2 in the rest of the boards.
For the visible light communication module 2 in any board that receives the visible light signal reflected by the reflector 4, it may sequentially decode, modulate, and post-equalize the visible light signal, so as to convert the visible light signal into a data signal, and transmit the data signal to the processor 1 in the board through the data signal transmission port a. Then, the processor 1 of the board may determine whether the identifier carried in the received data signal is the identifier of the board. If the judgment result is yes, the board card is the destination board card of the data signal, so that the processor 1 of the board card can perform subsequent processing on the received data signal; if the determination result is negative, it indicates that the board is not the destination board of the data signal, and therefore, the processor 1 of the board directly discards the data signal, so as to avoid the consumption of system resources caused when processing the data signal.
In the scheme, the interaction of the data signals between any two boards can be realized in a Visible Light Communication (VLC) mode, and the interaction of the data signals does not need to be realized in dependence on a bus or a switching network for hanging the main control board and each service board. Therefore, the performance of the whole distributed device is not influenced by the performance and the standard specification of the bus and the switching network any more, that is, the scheme gets rid of the influence of the performance and the standard specification of the bus and the switching network on the performance of the distributed device.
Optionally, as shown in fig. 2, the board connector 6 provided on any board is further connected to the power signal transmission port b and the management signal transmission port c of the processor 1 in the board.
In this embodiment, the electric energy transmitted to the backplane 5 can be transmitted to the board connector 6 through the backplane connector 7. And then, the electric energy transmitted to the board card connector 6 can be transmitted to the power signal transmission port b of the processor 1 to supply power to the processor 1, so that the normal operation of each board card and the whole distributed equipment is ensured.
In addition, when the main control board card in the distributed device needs to issue a control signal to any service board card, the processor 1 in the main control board card may send the control signal through the management signal transmission port c, and then the control signal may be transmitted to the backplane 5 through the board card connector 6 of the main control board card and the backplane connector 7 plugged into the board card connector 6 of the main control board card in sequence. Then, the backplane 5 transmits the received control signal to the processor 1 of the service board via the backplane connector 7 plugged with the board connector 6 of the service board, and the management signal transmission port c of the processor 1 of the service board. In this way, the processor 1 of the service board can process the control signal received through the management signal transmission port c of the processor according to the existing flow.
According to the previous embodiment, the interaction of the data signals between the boards can be realized by depending on the visible light communication mode, so that in the embodiment, the backboard 5 only needs to ensure that the electric energy can be transmitted to each service board, and the interaction of the control signals between the boards is ensured. Because the number of control signals required to be interacted between the main control board card and the service board card is usually small, the bandwidth required for transmitting the control signals between the board card connector 6 and the backplane connector 7 is also small. Then, the sizes of the board card connector 6 and the backboard connector 7 can be set to be small and exquisite, and the space of the chassis in the distributed equipment occupied by the whole backboard 5 is also very small, so that sufficient space can be provided in the chassis to form a front and rear air duct structure, and the ventilation and heat dissipation effects in the chassis can be improved.
Optionally, the boards may include a master board and a service board. It should be noted that, for the distributed device, the number of the main control boards included in the distributed device may be at least one.
And when the number of the main control board cards is only one, the main control board card is the working main control board card.
When the number of the main control board cards is at least two, the heartbeat signal transmission ports d of the processors 1 of any two main control board cards are connected through a heartbeat cable 8; and the processor 1 of any main control board card is used for electing a working main control board card from all the main control board cards, and the rest main control board cards are standby main control board cards.
Specifically, the processors 1 of the main control boards may elect the working main control boards according to the same election strategy, so that the working main control boards elected by the processors 1 of the main control boards are definitely consistent.
In this embodiment, the processor 1 of the working master control board is configured to send a notification signal for indicating that the board where the processor is located is the working master control board through the self-management signal transmission port c; the system is further configured to determine, for a preset time slot allocation cycle, a signal transmission time slot corresponding to each board card in the distributed device, send a clock of the system and a signal transmission time slot corresponding to each board card except the working master control board card through the management signal transmission port c of the system, and store the signal transmission time slot corresponding to the board card where the system is located.
In a preferred embodiment, any two adjacent signaling slots may be separated by a guard slot. Specifically, the guard time slots between any two adjacent signal transmission time slots may be the same or different, and the specific value of the guard time slot may be determined according to an actual situation, which is not limited in this embodiment. Due to the existence of the protection time slots, the signal sending time slots corresponding to the board cards are not overlapped with each other.
The processors 1 of the other boards except the working master control board are configured to obtain the clock of the working master control board and the signal transmission time slot corresponding to the board where the processor is located through the self-management signal transmission port c, synchronize the self-clock to the clock of the working master control board, and store the signal transmission time slot corresponding to the board where the processor is located.
The processor 1 of the working master control board card and the processors 1 of the business board cards are also used for sending data signals through the data signal transmission ports a of the processors in the signal sending time slots stored by the processors.
The following describes a specific implementation process of this embodiment with reference to fig. 3.
As shown in fig. 3, in the distributed device, the number of the master boards is two (respectively, master board a and master board B), and the number of the service boards is three (respectively, service board C, service board D, and service board E).
After the distributed device is powered on, the main control board a and the main control board B can both obtain electric energy through the backplane 3 shown in fig. 2, and at this time, the main control board a and the main control board B can send election negotiation information through the heartbeat signal transmission port d of the processor 1, so as to select a working main control board from the main control board a and the main control board B according to the election negotiation information. Assuming that the working master control board cards elected by the processors 1 of the master control board card a and the master control board card B are the master control board card a, the master control board card B is the standby master control board card, and at this time, the processor 1 of the master control board card a sends out a notification signal for representing that the master control board card a is the working master control board card through the self-management signal transmission port c. In addition, the processor 1 of the main control board a may allocate signal transmission timeslots to each board, and the allocation result may be specifically as shown in fig. 4 below.
As is easily seen from fig. 4, in each timeslot allocation cycle, the signal transmission timeslot allocated to the main control board a by the processor 1 of the main control board a is T1, the signal transmission timeslot allocated to the main control board B is T2, the signal transmission timeslot allocated to the service board C is T3, the signal transmission timeslot allocated to the service board D is T4, and the signal transmission timeslot allocated to the service board E is T5. In this way, the main control board a sends its own clock and the signal sending timeslots corresponding to the boards other than the main control board a through its own management signal transmission port c. In addition, the processor 1 of the master control board a also stores the signal transmission time slot T1 corresponding to the master control board a.
In this way, the processor 1 of the main control board B may obtain and store the signal transmission time slot T2 corresponding to the main control board B, the processor 1 of the service board C may obtain and store the signal transmission time slot T3 corresponding to the service board C, the processor 1 of the service board D may obtain and store the signal transmission time slot T4 corresponding to the service board D, and the processor 1 of the service board E may obtain and store the signal transmission time slot T5 corresponding to the service board E. In addition, the processors 1 of the master control board B, the service board C, the service board D and the service board E synchronize their own clocks to the clock of the master control board a according to the obtained clock of the master control board a.
Then, in each time slot allocation cycle, the processor 1 of the main control board a only sends out a data signal in the signal sending time slot T1, and the processor 1 of each service board also only sends out a data signal in the signal sending time slot corresponding to the service board where it is located, so as to ensure that the boards are not interfered and overlapped with each other.
In this embodiment, each board card has its own corresponding signal transmission time slot, clocks of the board cards are all synchronous, and the processor 1 in each board card only sends out a data signal in the signal transmission time slot corresponding to the board card in which it is located, so that the board cards do not interfere with each other or overlap each other. In addition, a protection time slot is also set in the embodiment, and no single board sends out a data signal in the protection time slot, so that the possibility of interference between two boards with the corresponding time slot being an adjacent time slot can be further reduced.
Optionally, the processor 1 of the standby main control board is further configured to reselect the working main control board from the standby main control boards in the available state when the working main control board fails.
And the processor 1 of the reselected working main control board card is used for sending a notification signal for representing that the working main control board card is switched to the self management signal transmission port c, and sending a data signal through the self management signal transmission port c in the self-stored signal sending time slot.
Next, a description will be given of a specific implementation process of the present embodiment, with reference to the example in the previous embodiment.
Because the heartbeat signal transmission ports d of the processors 1 of the main control board card a and the main control board card B are connected through the heartbeat cable 8, the main control board card a and the main control board card B can communicate heartbeat information to acquire the state of the other side. If it is determined that the working master control board card (i.e., the master control board card a) has a fault according to the heartbeat information communicated with the master control board card a by the master control board card B serving as the standby master control board card, the processor 1 of the master control board card B can reselect the working master control board card from the standby master control board card (i.e., the master control board card B) in an available state, and obviously, the working master control board card reselected by the processor 1 of the master control board card B is the master control board card B. Therefore, the processor 1 of the main control board B sends out a communication signal for indicating that the main control board B is switched to the working main control board through the self-management signal transmission port c, and in addition, the processor 1 of the main control board B also sends out a data signal through the self-management signal transmission port c in the self-stored signal sending time slot (i.e., the signal sending time slot T2).
It is easy to see that, in this embodiment, when the current working master control board card fails, the other master control board cards may reselect a new working master control board card, so that normal operation of the distributed device may be effectively ensured.
Optionally, the distributed device may further include: a light-shielding cabinet; the backboard 5 is fixedly installed in the shading case, a plurality of slots are formed in the shading case, and each board card is installed at a designated position in the corresponding slot respectively, so that each board card is connected with the corresponding backboard connector 7 through the board card connector 6 of the board card.
It is understood that the back panel 5 may be fixedly mounted within the light shade cabinet by welding, snapping, screwing, or other means known to those skilled in the art.
During actual installation, an operator can insert each board card into the designated position of the slot in the shading cabinet respectively, so that each board card is inserted into the corresponding backboard connector 7 through the board card connector 6 of the operator, each board card is correctly installed in the shading cabinet, and the successful transmission of power signals and control signals among the board cards is realized. In addition, because each board card is arranged in the shading case, the visible light signal sent by any board card can only be transmitted in the shading case but cannot be transmitted to the outside of the shading case, and accordingly, the data signal needing to be transmitted among the board cards cannot be leaked, and the safety and the confidentiality of the data signal can be effectively guaranteed.
In conclusion, the embodiment gets rid of the influence of the performance and the standard specification of the bus on the performance of the distributed device.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a board card, its characterized in that is applied to distributed equipment, the board card includes: a processor and a visible light communication module; wherein,
the visible light communication module is connected with a data signal transmission port of the processor;
the visible light communication module is provided with a transmitting component and a receiving component which are arranged in pair, and is used for converting the data signal output by the processor from the data signal transmission port into a visible light signal and sending the converted visible light signal from the transmitting component to the reflector; the visible light communication module is further configured to receive the visible light signal reflected by the mirror through the receiving component, convert the received visible light signal into a data signal, and input the data signal into the processor through the data signal transmission port.
2. The board card of claim 1, wherein the visible light communication module has at least one pair of a transmitting component and a receiving component, the transmitting component emits visible light signals with different wavelengths, and the receiving component receives visible light signals with the same wavelength as the visible light signals emitted by the transmitting component.
3. A distributed device, comprising: a backplane, a mirror, and a plurality of boards of claim 1 or 2; wherein,
the backboard is provided with a plurality of backboard connectors, each board card is provided with a board card connector, and each board card is inserted into the corresponding backboard connector through the board card connector of the board card;
any board card is used for sending visible light signals to the reflector;
and any board card is also used for receiving the visible light signals reflected by the reflector and sent by any other board card.
4. The distributed apparatus according to claim 3, wherein the processor of any board card is configured to process the data signal when a destination board card of the data signal received through the data signal transmission port of the board card is the board card on which the board card is located; and under the condition that the target board card of the data signal is not the board card of the target board card, discarding the data signal.
5. The distributed plant of claim 3 wherein the board connectors on any board are further connected to power signal transmission ports and management signal transmission ports of the processors in that board.
6. The distributed device of claim 5, wherein the boards comprise a master board and a service board;
when the number of the main control board cards is one, the main control board cards are working main control board cards; or,
when the number of the main control board cards is at least two, the heartbeat signal transmission ports of the processors of any two main control board cards are connected through a heartbeat cable;
and the processor of any main control board card is used for selecting a working main control board card from the main control board cards, and the rest main control board cards are standby main control board cards.
7. The distributed device of claim 6,
the processor of the working main control board card is used for sending a notification signal for representing the board card in which the processor is located as the working main control board card through the self management signal transmission port; the system is also used for determining a signal sending time slot corresponding to each board card in the distributed equipment according to a preset time slot distribution cycle, sending a clock of the system and the signal sending time slots corresponding to the board cards except the working main control board card through a management signal transmission port of the system, and storing the signal sending time slot corresponding to the board card where the system is located;
the processors of the other board cards except the working main control board card are used for acquiring the clock of the working main control board card and the signal sending time slot corresponding to the board card where the processor is located through the self management signal transmission port, synchronizing the self clock to the clock of the working main control board card, and storing the signal sending time slot corresponding to the board card where the processor is located;
the processor of the working master control board card and the processors of the service board cards are also used for sending data signals through the data signal transmission ports of the processors in the signal sending time slots stored by the processors.
8. The distributed apparatus of claim 7, wherein any two adjacent signal transmission time slots are separated by a guard time slot.
9. The distributed device of claim 6,
the processor of the standby main control board card is also used for reselecting the working main control board card from the standby main control board cards in the available state under the condition that the working main control board card fails;
and the processor of the reselected working main control board card is used for sending a notification signal for representing that the working main control board card is switched to the self management signal transmission port through the self management signal transmission port, and sending a data signal through the self data signal transmission port in the self stored signal sending time slot.
10. The distributed apparatus of any of claims 3-9, further comprising: a light-shielding cabinet; the back plate is fixedly installed in the shading case, a plurality of slots are formed in the shading case, and each board card is installed at a designated position in the corresponding slot respectively so that each board card is connected with the corresponding back plate connector in an inserting mode through the board card connector of the board card.
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| CN201710405395.7A CN107547132B (en) | 2017-05-31 | 2017-05-31 | Board card and distributed equipment |
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| CN201710405395.7A CN107547132B (en) | 2017-05-31 | 2017-05-31 | Board card and distributed equipment |
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