High-speed communication system applied to master and slave machines

Abstract

The utility model discloses a high-speed communication system applied to a master machine and a slave machine, both the master machine and the slave machine are circuit units, and the circuit units are power supplies, loads or source loads; comprising at least one main optical fiber route and a plurality of sub optical fiber routes, and each host is configured with one sub optical fiber route; the main optical fiber router is provided with a plurality of optical fiber input interfaces and a plurality of optical fiber output interfaces, each optical fiber input interface of the main optical fiber router is connected with the optical fiber output interface of one host, and each optical fiber output interface of the main optical fiber router is connected with the optical fiber input interface of one sub optical fiber router; each sub optical fiber route is provided with a plurality of optical fiber input interfaces and a plurality of optical fiber output interfaces, the optical fiber output interfaces of the sub optical fiber routes are respectively connected with the optical fiber input interfaces of the corresponding host and the corresponding slave, and the optical fiber input interfaces of the sub optical fiber routes are respectively connected with the optical fiber output interfaces of the corresponding host and the corresponding slave. The utility model can prolong the transmission distance and improve the transmission speed and accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply parallel communication technical field especially, it relates to a high speed communication system for master-slave machine. BACKGROUND

[0002] Traditional system on-line mode includes parallel communication wiring mode, especially suitable in the occasion needing master-slave machine synchronization, the host sends a synchronization signal, and each slave machine receives the signal simultaneously, thereby realizing the synchronization work of host and slave machine. On the other hand, in order to ensure the reliability of communication, the master-slave machine communication mode of analog medium (such as electric signal) is generally used to extend the communication distance, but the disadvantage is poor anti-interference, and there is driving capacity limit leading to long-distance networking. And for the parallel communication of power supply, load and source load product, the real-time performance and accuracy of information transmission are required higher, and there is also the actual demand of long-distance networking. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem in that a high speed communication system for master-slave machine is provided, which can extend the transmission distance and improve the transmission speed and accuracy.

[0004] In order to solve the above technical problem, the utility model discloses a high speed communication system for master-slave machine, the master-slave machine includes a host and multiple slave machines, the master-slave machine is placed in multiple cabinets, one host and part of slave machines are placed in a first cabinet, and the other slave machines are grouped and each group is placed in a cabinet; the host and the slave machine are circuit units and are connected by series connection or parallel connection;

[0005] Including a main optical fiber route and multiple sub optical fiber routes, a main optical fiber route and a sub optical fiber route are arranged in the first cabinet, and a sub optical fiber route is arranged in each of the other cabinets;

[0006] The main optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces, each optical fiber input interface of the main optical fiber route is connected with an optical fiber output interface of a sub optical fiber route, and each optical fiber output interface of the main optical fiber route is connected with an optical fiber input interface of a sub optical fiber route;

[0007] Each sub optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces;

[0008] In the first cabinet, the optical fiber output interfaces of the sub optical fiber route are connected with the optical fiber input interfaces of the host in the cabinet and the slave machines in the cabinet respectively, and the optical fiber input interfaces of the sub optical fiber route are connected with the optical fiber output interfaces of the host in the cabinet and the slave machines in the cabinet respectively;

[0009] In other cabinets, the fiber output interfaces of the sub-fiber routes are connected to the fiber input interfaces of the slave machines in the cabinets respectively, and the fiber input interfaces of the sub-fiber routes are connected to the fiber output interfaces of the slave machines in the cabinets respectively.

[0010] As an optional implementation, the circuit unit is a power supply, a load or a source load.

[0011] As another optional implementation, the master machine and the slave machines are provided with fiber transceiver modules, the fiber transceiver modules are connected to the fiber input interfaces and the fiber output interfaces of the master machine and the slave machines respectively, and the fiber transceiver modules are used to convert optical signals into digital signals or convert digital signals into optical signals.

[0012] As another optional implementation, the master machine and the slave machines are provided with bidirectional signal conversion modules and processors, the fiber transceiver modules are connected to the bidirectional signal conversion modules in a bidirectional communication mode, the bidirectional signal conversion modules are connected to the processors in a bidirectional communication mode, and the bidirectional signal conversion modules are used to convert the digital signals received from the fiber transceiver modules into serial data signals or convert serial data signals received from the processors into parallel data signals.

[0013] As another optional implementation, the number of slave machines corresponding to each master machine is not more than 255.

[0014] Compared with the prior art, the embodiments of the utility model have the following beneficial effects:

[0015] In the embodiments of the utility model, the parallel communication system is established based on the fiber routing of the master machine and the slave machines, so that the master machine and the slave machines can independently receive and send information without passing through other slave machines, the transmission speed can be ensured, and the damage of any slave machine can not affect the whole communication system; compared with the transmission based on electrical signals, the transmission bandwidth of the fiber is higher, the speed is faster, the anti-interference performance is stronger, the transmission distance can be further prolonged, the transmission speed and accuracy can be improved, the fiber can be applicable to long-distance transmission and scenes with high real-time requirements, and the physical and electrical isolation between the master machine and the slave machines is realized through the fiber module, and the protection of the circuit equipment is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0017] Figure 1The utility model embodiment discloses a structure schematic drawing of high speed communication system applied to master-slave machine.

[0018] Figure 2 The utility model embodiment discloses another structure schematic drawing of high speed communication system applied to master-slave machine. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the utility model scheme, below will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment only is a part embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtains without making the creative labor all belong to the range of the utility model protection.

[0020] Reference Figures 1-2 The utility model embodiment discloses a high speed communication system applied to master-slave machine, the master-slave machine includes a host computer and multiple slave machines, the master-slave machine is placed in multiple cabinets, and one host computer and part slave machines are placed in the first cabinet, and other slave machines are grouped and each group is placed in a cabinet respectively, the host computer and the slave machine are all circuit units and are connected through series connection or parallel connection,

[0021] Including a main optical fiber route and multiple sub optical fiber routes, a main optical fiber route and a sub optical fiber route are configured in the first cabinet, and a sub optical fiber route is configured in the other cabinet.

[0022] The main optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces, and each optical fiber input interface of the main optical fiber route is connected with the optical fiber output interface of a sub optical fiber route, and each optical fiber output interface of the main optical fiber route is connected with the optical fiber input interface of a sub optical fiber route.

[0023] Each sub optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces.

[0024] In the first cabinet, the optical fiber output interface of the sub optical fiber route is connected with the optical fiber input interface of the host computer in the cabinet and the slave machine in the cabinet respectively, and the optical fiber input interface of the sub optical fiber route is connected with the optical fiber output interface of the host computer in the cabinet and the slave machine in the cabinet respectively.

[0025] In the other cabinet, the optical fiber output interface of the sub optical fiber route is connected with the optical fiber input interface of the slave machine in the cabinet respectively, and the optical fiber input interface of the sub optical fiber route is connected with the optical fiber output interface of the slave machine in the cabinet.

[0026] With Figure 1For example, the master-slave machine includes 1 master and 8 slaves, the communication system includes 1 master fiber route and 3 sub fiber routes, forming 3 sub communication systems; each sub communication system does not communicate with each other, and takes the master fiber route as the communication terminal, and signals are directly and simultaneously sent to each sub communication system to receive information; each sub communication system takes the sub fiber route as the communication terminal, and the master and the slave do not directly communicate, and the slave does not directly communicate with the slave, but is directly sent to the sub fiber route, and the sub fiber route quickly returns information, realizing the fast communication network based on the fiber. Since there is no direct information exchange between the master and the slave, the slaves do not affect each other, and even if a slave is damaged, it does not affect the normal communication of the whole system.

[0027] In this embodiment, the master-slave machine establishes a parallel communication system based on the fiber route, so that the master-slave machine can independently receive and send information without passing through other slaves, which can not only ensure the transmission speed, but also avoid the damage of any slave affecting the whole communication system; compared with the transmission based on electrical signals, the transmission bandwidth of the fiber is higher, the speed is faster, and the anti-interference performance is stronger, which can further prolong the transmission distance and be applicable to long-distance transmission and scenes with high real-time requirements; the physical and electrical isolation between the master and each slave is realized through the fiber module, which is helpful to the protection of the circuit equipment.

[0028] In an optional embodiment, the circuit unit is a power supply, a load or a source load.

[0029] In another optional embodiment, the master and the slave are provided with a fiber transceiver module, the fiber transceiver module is connected with the fiber input interface and the fiber output interface of the master or the slave, and the fiber transceiver module is used for converting the optical signal into the digital signal or converting the digital signal into the optical signal.

[0030] In another optional embodiment, the master and the slave are provided with a bidirectional signal conversion module and a processor; the fiber transceiver module is connected with the bidirectional signal conversion module in a bidirectional communication mode, the bidirectional signal conversion module is connected with the processor in a bidirectional communication mode, the bidirectional signal conversion module is used for converting the digital signal received by the fiber transceiver module into the serial data signal or converting the serial data signal received by the processor into the parallel data signal. The fiber transceiver module adopts the fiber communication port, the parallel-to-serial or serial-to-parallel chip or the logic algorithm.

[0031] In this embodiment, the processor includes a data integration module for integrating the local information of the power supply module and the information transmitted by the power supply modules of the slaves. The local information includes the current value and / or the voltage value of the circuit unit at present.

[0032] In another optional embodiment, the number of slaves corresponding to each master is not more than 255.

[0033] Further, in order to implement the advantages of the system, another embodiment is that the optical signal sent by the host is directly forwarded to the slave to which the optical router belongs, or to the next level router, and the router transmits the signal to the next level through the optical fiber splitter and finally sends it to the slave. The transmission speed of this process is affected only by the transmission distance of the optical fiber, and the worst case is determined by the distance from the host to the slave with the longest wiring, and is irrelevant to the number of slaves in the system. In order to control each slave in the system, the host needs to encode the data transmitted to each slave. In this embodiment, the host and each slave are pre-set with a device ID, and when the host needs to control a certain slave, the device ID is placed in the protocol and sent out through the optical fiber according to the defined communication protocol. At this time, each slave in the system will receive the data sent by the host, but the protocol stipulates that only when the device ID matches the receiving ID, the device will further process the data, such as executing the specified action or responding to the data, and other devices will ignore the received data this time. Another more significant advantage is that when the system needs to perform a global unified action, such as simultaneously outputting voltage, the parallel system advantage can be used to allow the slave to process global data. The specific implementation method is to specify a special ID in the communication protocol for receiving global data, which is the global ID. When the host needs to perform global simultaneous control, it only needs to change the ID of the control data to be sent to the global ID. After the slave receives the data, it analyzes whether it is the global ID specified in the protocol, and then processes the data and executes the action. Due to the parallel characteristics of the system, each slave receives the data and executes it at the same time, achieving the purpose of global unified control.

[0034] Meanwhile, the host needs to acquire the running information of each slave, because the communication logic structure is reversed at this time, and the information of multiple slaves needs to be sent to one host, if the simple optical fiber convergence structure is used, the optical signal conflict and confusion will be caused inevitably. A measure is adopted in the system to solve the problem of multiple slave receiving data. That is, the data sent by each slave is first connected to the optical fiber router, and the data sent by the slave is received by the router, because the optical fiber router has multiple independent receiving modules, so the data sent by each slave can be received simultaneously. When the optical fiber router receives the data of the slave, the data is sent to the host or the upper optical fiber router. Because there is a case that multiple slaves send data to the host simultaneously, when the optical fiber router sends data to the upper level, the FIFO mechanism needs to be used, the data is cached first, then the cached data is sent out according to the principle of first receiving first forwarding, until the data is empty. When the host receives the data sent by each slave, a mechanism needs to be used to parse the slave data. Referring to the basic format of the communication protocol defined in the following table, the host can distinguish to which device the received multiple data belongs according to the source device ID, and further, according to the data control and data load, the running information of the slave can be parsed.

[0035] Target device ID Source device ID Data control and data payload Data check

[0036] The content disclosed by the embodiments of the utility model is only the preferred embodiments of the utility model, and is used for describing the technical scheme of the utility model, but is not limited to it. Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. The modification or replacement does not make the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model.

Claims

1. A high-speed communication system applied to master-slave machines, characterized in that, The master-slave machine includes one master and multiple slaves, and is placed in multiple cabinets, wherein one master and part of the slaves are placed in a first cabinet, and the other slaves are grouped and each group is placed in a cabinet; the master and the slaves are circuit units and are connected in series or in parallel; The master-slave machine includes one master and multiple slaves, and is placed in multiple cabinets, wherein one master and part of the slaves are placed in a first cabinet, and the other slaves are grouped and each group is placed in a cabinet; the master and the slaves are circuit units and are connected in series or in parallel; The master optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces, each optical fiber input interface of the master optical fiber route is connected with an optical fiber output interface of the sub optical fiber route, and each optical fiber output interface of the master optical fiber route is connected with an optical fiber input interface of the sub optical fiber route; Each sub optical fiber route has multiple optical fiber input interfaces and multiple optical fiber output interfaces; In the first cabinet, the optical fiber output interfaces of the sub optical fiber route are respectively connected with the optical fiber input interfaces of the master and the slaves in the cabinet, and the optical fiber input interfaces of the sub optical fiber route are respectively connected with the optical fiber output interfaces of the master and the slaves in the cabinet; In the other cabinets, the optical fiber output interfaces of the sub optical fiber route are respectively connected with the optical fiber input interfaces of the slaves in the cabinet, and the optical fiber input interfaces of the sub optical fiber route are respectively connected with the optical fiber output interfaces of the slaves in the cabinet.

2. The high speed communication system of claim 1, wherein The circuit unit is a power supply, a load or a source load.

3. The high speed communication system of claim 1, wherein The master and the slave are provided with optical fiber transceiver modules, the optical fiber transceiver modules are respectively connected with the optical fiber input interfaces and the optical fiber output interfaces of the master or the slave, and the optical fiber transceiver modules are used for converting optical signals into digital signals or converting digital signals into optical signals.

4. The high speed communication system of claim 3, wherein The master and the slave are provided with bidirectional signal conversion modules and processors; the optical fiber transceiver modules are bidirectionally connected with the bidirectional signal conversion modules, the bidirectional signal conversion modules are bidirectionally connected with the processors, and the bidirectional signal conversion modules are used for converting the digital signals sent by the optical fiber transceiver modules into serial data signals or converting the serial data signals sent by the processors into parallel data signals.

5. The high speed communication system of claim 1, wherein The number of slaves corresponding to each master is not more than 255.

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