CN100589422C - A simulation single board and simulation method thereof - Google Patents

Abstract

The present invention provides a simulation single board for equipment and product development in the field of communication, including: a public framework, an interface part and a multi-purpose simulation module; wherein: the public framework is used as a public platform to realize the common Task; the interface part is used to realize the information interaction between the simulation single board and the main control board and the network management system, or to realize the information interaction between the simulation single board and other business single boards; the multi-purpose simulation module is used for Realize the function of simulating each business single board under the control of the system. The present invention can simultaneously simulate the functions of various business single boards after the network management system is developed, so as to discover and solve problems in other parts of the network management system or subsystems in advance, accelerate product development progress, improve product development efficiency, and reduce product development process. cost in .

Description

A simulation single board and simulation method thereof

technical field

The invention relates to the development of equipment and products in the communication field, in particular to a device and method for developing products by simulating product function units.

Background technique

Large-scale communication and its control system products are composed of multiple (blocks) pluggable single boards (or sub-cards) and related components. There are two types of boards in terms of quantity and importance of function completion: main control function boards and service function boards. As shown in Figure 1.

The system equipment in Fig. 1 is composed of a network management center, a main control board, and a service board (other auxiliary parts are not shown in the figure). The main control board realizes the control and management of the service board in the foreground through the communication interface. The background network management center completes the control and information interaction with the service board through the main control board. The network management center (composed of network management system software, database center, and workstation) realizes the management of the equipment and its networked equipment. The combination of network management and hardware equipment is a real product that customers can use. They are provided to users as an organic whole.

In the actual system equipment, the single boards that implement business functions account for an absolute majority, and the number of single boards that implement main control functions is relatively small. Therefore, during the R&D process, the single-board design, development, and testing workloads for business functions account for a large proportion. At the same time, these service function single boards have a common feature that they use the same or similar frameworks and carry different services and service functions.

During the product development and engineering development stages, the following situations usually occur:

(1) During the R&D and testing process, due to the different development progress of the network management system and the single-board hardware equipment, the corresponding debugging and testing work cannot be carried out smoothly, and one party is waiting for the other.

(2) Similar to the above, the actual progress of the development of each single-board hardware device itself is not consistent, which also affects the integrated debugging and testing of the subsystems between the single-boards.

(3) In the process of R&D testing, sometimes limited by cost pressure (stock pressure), sometimes it is impossible to have (reserve) real veneers, or even if there are veneers, the quantity is not enough to meet the test requirements, but at this time related work must To develop.

(4) In the process of product pre-research, a new pre-research of a business single board is added. On the basis of the conceptual model, a carrier is required to realize the concept product. If it is a new development, there may be pressure on schedule and cost.

Situations similar to the above will affect the progress and efficiency of the R&D process to a certain extent, and then affect the time to market and market share of the product. The present invention can solve this difficult problem to a certain extent.

Contents of the invention

The technical problem to be solved by the present invention is to provide a simulation veneer and its simulation method to solve the problems of product development progress, efficiency and cost affected by lack of veneer in the product development process.

In order to solve the above-mentioned technical problem, the present invention provides a kind of emulation veneer, is used for the development of equipment and product in the field of communication and its control, and this emulation veneer comprises: public framework, interface part and multi-purpose emulation module; Wherein:

The common framework is used as a common platform to realize the common tasks of the emulated single board;

The interface part is respectively connected with the common framework and the multi-purpose simulation module, which is used to realize the information interaction between the simulation board and the main control board and the network management system, and realize the information interaction between the simulation board and other business boards;

The multi-purpose emulation module is connected with the common framework, and is used for realizing the function of simulating each service single board under the control of the common framework.

Further, the public framework includes a software framework and a hardware framework, wherein:

The software framework includes embedded operating system, board-level support package and application layer common task scheduling processing framework;

The hardware framework is a general-purpose control module based on the controller, including the controller, memory, peripheral interface devices, and programmable logic devices; the hardware framework is used to implement the common tasks of the public framework through the software framework, that is, implement hardware drivers and communicate with interfaces , scheduling tasks, configuring data, and accessing database functions.

Further, the interface part includes an interface bus, a communication interface connected to the interface driver and the adaptation part, other service single-board signal interfaces, and an external interface of the emulation single-board; wherein:

The communication interface is used for information exchange between the simulation board and the main control board or other business boards;

The interface driving and adaptation part is used to provide address identification and signal driving functions for the information interaction between the simulation board and the main control board or other business boards;

The signal interface of other business boards is used to transmit business signals between the simulation board and other business boards;

The interface bus is connected to the interface driver and adaptation part, and is used to transmit each interface signal of the interface part;

The external interface of the emulated single board is used to realize the information interaction between the emulated single board and the control panel, including: outputting the working status indication to the control panel, and receiving the emulation command signal from the control panel.

Further, the multi-purpose simulation module includes a database and a configuration data area; wherein:

The database provides configuration data for the simulation of the business functions of different types of business boards, that is, the attributes, configuration, business category and business data of the business boards; or provides the storage medium for the simulation program of the simulation function module and the simulation program of the programmable logic device;

The configuration data area includes the emulated single board configuration data area and the emulated single board configuration data area; wherein, the common framework determines the operating mode of the emulated single board according to the emulated single board configuration data area, and according to the configuration data of the emulated single board configuration data area to start the simulation of the service function of the service single board.

Further, the multi-purpose simulation module also includes a single-board service function simulation module, which realizes the simulation of a specific service single-board service function through software modules and programmable logic devices; wherein:

Realize the simulation of one or more functions of general configuration and special configuration, analog and digital alarm, analog and digital performance, general maintenance and special maintenance, business logic and control process through software modules;

The simulation of the interface signal of the service single board is realized through the programmable logic device.

In order to solve the above-mentioned technical problems, the present invention provides a kind of emulation method of emulation veneer, comprises steps:

(a) Construct a public framework based on the public parts of each business class single board, and the public framework realizes the public tasks of the simulation single board as a public platform;

(b) Build a multi-purpose simulation module;

(c) Perform data configuration on the multi-purpose simulation module and create and execute single-board simulation processing tasks, realize the simulation of the business functions of each business single-board under the control of the common framework, and realize the simulation single-board and main control single-board and network management Information exchange between systems, and information exchange between the simulation board and other business boards.

Further, step (a) includes the construction of software framework and hardware framework, wherein:

The software framework includes the construction of embedded operating system, board-level support package and application layer common task scheduling processing framework;

The hardware framework is the construction of a general control module based on the controller as the core, which is used to realize the common tasks of the common framework through the software framework, that is, the implementation of hardware drivers, communication with interfaces, task scheduling, configuration data and access to database functions.

Further, step (b) includes the construction of configuration data area and database; wherein:

The construction of the configuration data area includes the construction of the simulated single board configuration data area and the simulated single board configuration data area; wherein, the operating mode of the simulated single board is determined according to the simulated single board configuration data area, and the emulated single board is configured according to the simulated single board configuration data. start the emulation of the service function of the service single board by using the configuration data of the service area;

The data of successful configuration of the simulated single board will be stored in the database for subsequent repeated emulation of the business single board.

Further, step (b) also includes the construction of a single-board service function simulation module, which is used to realize the simulation of a single service board; wherein:

The single board business function simulation module realizes the simulation of one or more functions of general configuration and special configuration, analog and digital alarm, analog and digital performance, general maintenance and special maintenance, business logic and control process through software modules;

The single-board service function simulation module realizes the simulation of a single service board interface signal through a programmable logic device.

Further, the data in the configuration data area is directly accessed by category through a common interface maintenance command, or indirectly accessed by a part of bytes through a single-board emulation maintenance command.

Further, the working mode of simulating a single board includes simulating a single service board, simulating multiple service boards and load generators; wherein:

The mode of simulating a single service board is the function of simulating a single board at a time to only simulate a single service board, which is realized by configuring the name, type, address, attribute and service data of the single service board and running a single board service function simulation module;

The mode of simulating multiple service boards is the function of simulating multiple service boards at the same time, which is realized by configuring the names, types, addresses, attributes and business data of multiple service boards;

The load generator mode is that the simulation single board is only used as a common reporting message function of the load simulation business single board to provide a test of the performance of the network management system. By configuring the name, type, address, attribute and business data realization.

Furthermore, the working mode of the emulated single board can also be selected through hardware dialing.

Further, step (c) single board emulation processing task includes:

Communication interface processing: process the information in the sending and receiving data queue of the communication interface, that is, the network management system sends and receives information to the simulation board through the main control board, completes receiving information from the communication interface and puts it into the receiving queue, or sends the data in the sending queue through communication The interface sends out to the main control board;

Command processing: Read and process the receiving queue information in sequence, and put the processing result information into the sending queue as needed;

Single-board business processing: including business-related configuration and maintenance processing, performance collection and processing, alarm and event processing, and single-board function simulation.

Further, the method of the present invention also includes step (d): if the simulation board receives the command to modify the configuration data issued by the network management system, it chooses to execute the simulation of replacing a different service board; otherwise, the simulation board chooses to maintain the original Simulation of service boards.

In the process of research and development and testing, with the help of the simulation board of the present invention, the functions of multiple business boards can be simulated at the same time. As long as the network management system is first developed, corresponding debugging can be carried out on each business board and each subsystem of the business board , testing, in order to discover and solve problems in other parts of the network management system or subsystems in advance, so as to speed up the progress of product development, improve the efficiency of product development, and reduce the types and quantities of related business boards to a certain extent. costs in the development process.

In the aspect of pre-research of new products, relevant models of new products can be established by means of the emulation veneer of the present invention, and conceptual products can be quickly formed to speed up the progress of product pre-research.

Description of drawings

Fig. 1 is a structural block diagram of the application of the communication equipment single board in the system;

Fig. 2 is the structural block diagram of emulation single board of the present invention;

Fig. 2 a is the flow chart of the emulation method of the emulation single board of the present invention;

Fig. 3 is the block diagram of the structure that the emulation single board is connected with the system in an embodiment of the present invention;

Fig. 4 is the method flowchart of the embodiment shown in Fig. 3;

FIG. 5 is a schematic diagram of a single board service processing task in the method shown in FIG. 4 .

Detailed ways

An emulation single board provided by the invention comprises: a common frame, a multi-purpose emulation module and an interface part respectively connected with the two parts. Firstly, based on the common parts of each business board, a common framework is extracted, which serves as a common platform for universal boards to realize the functions of hardware drive, interface communication, task scheduling, configuration data and database access. Secondly, build a multi-purpose simulation module, including database and configuration data, and the construction of a single-board business function simulation module. Finally, by configuring the multi-purpose simulation module, the function simulation of different service boards can be realized, and the information exchange between the main control board, the network management system or other business boards in the system can be realized through the interface part.

The above-mentioned technical solution of the present invention will be described in detail below in combination with illustrations and specific embodiments.

As shown in FIG. 2 , the emulation board of the present invention includes a public software and hardware framework 201 , a multi-purpose emulation module 203 and an interface part 202 respectively connected to the two.

Among them, the common framework 201 is extracted based on the common parts of each business type board, which is a common platform for emulating boards, and is used to realize functions such as hardware driving, communication with interfaces, task scheduling, configuration data, and database access.

Public framework 201 includes software framework and hardware framework, wherein:

The software framework mainly includes an embedded operating system (OS, Operating System), a board-level support package (BSP, Board Supporting Package) and a common task scheduling processing framework of the application layer (including database access operations).

The hardware framework is mainly based on the CPU as the core of the general control module, which is composed of CPU, memory, peripheral interface devices and programmable logic devices. The hardware framework realizes the above tasks of the common framework through the software framework.

The interface part 202 is used to realize the information exchange between the simulation board and the main control board, the network management system or other service boards, and to realize the information exchange between the simulation board and the control panel. It includes communication interface, interface driver and adaptation part, signal interface of other business single board and external interface of emulation single board.

Among them, the communication interface is to realize the information interaction between the simulation board and the main control board, the network management system or other business boards from the perspective of the application layer; the interface driver and adaptation part is the information interaction between the simulation board and the main control board Provide functions such as address identification and signal driving; other service board signal interfaces are used to realize the transmission of service signals between the simulation board and other business boards; the external interface of the simulation board is used to realize information interaction with the control panel.

The multi-purpose simulation module 203 is also connected to the public framework, and realizes the functions of simulating different service boards through software modules (function simulation tasks realized based on the public software framework) and programmable logic devices.

The multipurpose simulation module 203 includes three parts: a single board service function simulation module, a database and a configuration data area. in:

The single-board service function simulation module is used to simulate the function of a specific service single-board. It simulates the specific service board based on software tasks to complete the following functions: general configuration and special configuration functions, analog and digital alarm functions, analog and digital performance simulation functions, general maintenance and special maintenance functions, and other services of the board Logic functions as well as functions to control the flow. In addition, the simulation of interface signals is realized by using programmable logic devices. The single board service function simulation module can realize the function of the simulated single board according to the data in the configuration data area.

The database provides data support for the business function simulation of different types of business boards, such as: the properties, configuration, business category, business-related data of business boards, and special simulation programs for programmable logic devices. Database data will not be lost when power is off, and data can be imported or exported in batches or imported or exported individually through database access commands.

The configuration data area includes two parts: the emulation board configuration data area and the simulated board configuration data area. The data in this area can be classified and directly accessed through common interface maintenance commands, or part of the bytes in the data area can be modified through special maintenance commands. indirect access. The data will not be lost after the board is powered off, and at the same time, the correctly configured data can be entered into the database for subsequent reuse as needed. The simulation board determines its working mode according to the configuration data of the former, and starts the simulation of the service function of the specific board according to the configuration data of the latter. The default data in the configuration data area is to simulate a service single board and its service data.

By configuring the universal board shown in Figure 2, the simulation of different service boards can be realized.

The flow of the simulation method of the simulation single board of the present invention is shown in Figure 2a, and the steps in the flow are described as follows:

The simulation board is powered on and starts to work. After the board is successfully booted, the main task is started. The main task completes the following functions successively: single-board hardware initialization, creation of common tasks, single-board semaphore and message queue initialization, single-board initialization, and creation of special processing tasks. The steps of these functional modules are described as follows:

Step 210: Initialize the hardware of the emulated single board, and complete the power-on and booting of the operating system for the emulated single-board hardware;

Step 220: Create public task functions, including watchdog processing tasks, timing tasks (time-related time bases in the process of simulating single-board business processing tasks) and idle (IDLE) tasks, etc., which are important auxiliary tasks for the normal operation of the system;

Step 230: Simulate the single board semaphore and message queue initialization function. The definition of semaphore is to ensure that each task does not conflict with resource access when the system is running. The message queue is a transfer station for information interaction between tasks when the system is running;

Step 240: Simulate the initialization function of the single board itself, complete hardware I/O initialization, interrupt vector initialization (interrupt service program installation), communication port initialization and read data in the configuration data area;

According to the data in the configuration data area read by initialization, that is, the working mode and the service configuration data of the simulated single board, the configuration, alarm, performance and maintenance data of the simulated single board are initialized, and the corresponding function simulation modules are initialized at the same time.

The working modes of the simulated single board are divided into the following three types: simulating (that is, simulating) a single service board, simulating multiple service boards, and a load generator. in:

Simulate a single service board: During the working process of the simulated board, only one specific service board is simulated. If another specific business board needs to be simulated, the working data needs to be reconfigured: that is, the name, type, attribute and other business data of the specific business board. In this working mode, the emulation board needs to run the service emulation function module of the specific service board.

Simulate multiple service boards: During the working process of the simulated single board, it can simulate the work of multiple specific business single boards at the same time. The name, type, virtual address, attributes, and business-related data of these specific service boards need to be defined through configuration data settings. In this working mode, the emulation board does not start the service emulation function module.

Load generator: It belongs to another case of simulating a single service board. During the working process of the simulation board, according to the configuration data, it is required to report the performance and alarm data to the network management system frequently, quickly and in large quantities through the interface, so as to test the robustness and reliability of the network management system (including the main control board of the system equipment), that is, The emulated single board only emulates the common reporting message function of a specific service board, and serves as a load to test the performance of the network management system. In this working mode, the emulation board does not start the service emulation function module.

In addition, the working mode of the simulated single board can also be selected through hardware dialing.

Step 250: Create a board emulation processing task function, the created tasks include: communication port processing tasks, command processing tasks and single board business processing tasks. in:

The communication port processing task is to process the information in the communication port sending and receiving data queue. The data is sent to the main control board through the communication port.

The command processing task reads the receiving queue information in turn and processes them, and at the same time puts the processing result information into the sending queue as needed. During the running of this task, if it is judged that the processed command belongs to the command to modify the data in the configuration data area, after the correct setting, the set data will be stored in the database, and at the same time, the simulation board will automatically complete the software reset operation, that is, re-complete the board initialization , task creation and startup. After reset, the board will complete the emulation function and other functions according to the data in the configuration data area.

The functions completed by the single-board service processing task include: service-related configuration and maintenance processing, performance collection and processing, alarm and event processing, and single-board function simulation.

In the special task, the initialization and running state of the business processing task of the single board is related to the working mode obtained when the simulated single board itself is initialized. Especially when simulating multiple service boards, this task is to complete the different board presence information, board configuration, performance processing, alarm processing and maintenance processing of these virtual single boards, and respond to the request and response of the network management system for these information.

During the initial creation process of the above task, the priority level and task scheduling mode of the task scheduled by the operating system are also set.

A specific embodiment of the present invention is given below to help the understanding of the above-mentioned technical solution of the present invention.

The principle structure of the connection between the simulation board and the system in one embodiment of the present invention is shown in Figure 3. The system includes the simulation board, the device interface bus 307, the network management system+main control board 308 and other service boards 309 in the system. Among them, the simulated single board includes:

The general control system support platform 301 is a general control module based on the CPU as the core, and is mainly composed of CPU, memory, peripheral interface devices and programmable logic devices.

The device interface 302 is used to realize the complete simulation of the internal physical interface of the simulated single board from the system, including the communication interface with the main control board, other control signal interfaces (the simulation board simulates the interface between the simulated single board and the main control board) and Signal interface with other service boards.

The function simulation module 303, that is, the single-board service function simulation module, is used to simulate the realization of relevant service functions to a certain extent, which can be realized through programmable logic devices and their auxiliary circuits, or through software modules. The former is mainly aimed at the simulation of physical signal requirements on the business, such as optical power adjustment, wavelength adjustment, and attenuator attenuation adjustment, etc.; the latter focuses on the simulation of business logic functions, such as state transition diagrams.

The panel interface 304 is used to realize the external interface function of the emulation board: output working status indication to the control panel, and receive other emulation command signals from the control panel.

The interface driver and adaptation 305 is used to physically realize the two-way matching of signals: one is to realize the matching with the system device interface 302 , and the other is to realize the matching with the panel interface 304 .

The database 306 provides a storage medium for emulation board configuration data or emulation function module programs for use by the emulation board when completing different business functions, and the board software can configure and read and write access to the database.

The configuration data 310 stores current configuration data information of the simulated single board. The acquisition of the configuration data may be a configuration command and configuration parameters issued by the emulation board through the device interface 302 ; it may also be data defined by selection of a hardware configuration switch.

In addition, other parts of the system:

The device interface bus 307 is the internal interface bus of the system, which is used for communication and information interaction between the simulation board and the network management system + main control board 308 and other business boards 309, and for the network management system + main control board 308 to simulate the single board management.

The network management system + main control board 308 is used for background monitoring and control of the system, monitors and operates other service boards 309 and simulation boards in the foreground, and can display monitoring information on the network management system.

Other business boards 309, other business boards in the system, complete system or subsystem functions with the cooperation of the simulation boards.

In Fig. 3, the general control system support platform 301 is the core of the system, under the control of the operating system and application software, obtains the current configuration data in the configuration data 310, thereby loading the relevant function simulation application to the function simulation module 303, or starting the software module tasks to complete the simulation business functions. The general control system support platform 301 and the function simulation module 303 connect the simulation single board to the device interface bus 307 through the interface driver and adaptation 305 and the device interface 302, and respectively communicate with the network management system + main control board 308 and other service boards 309 in the system Interaction information (including electrical interface signal interaction). The general control system support platform 301 and the function simulation module 303 output relevant instruction information through the interface driver and adaptation 305 and the panel interface 304 , or receive external interface input information from the panel interface 304 . The general control system support platform 301 accesses the database 306 (reads or writes configuration data) as required.

The working mode and process of the system shown in Figure 3 are shown in Figure 4, and the process includes the following steps:

401: Power on the emulation board;

402-406: the same as step 210 to step 250 of the above-mentioned method flow of the present invention;

407: Simulate single-board task scheduling and operation;

After the initialization of the emulation board is completed, the operating system starts to run each task of the emulation board in a defined task scheduling mode and task priority, that is, the emulation board is in a normal running state.

408: Determine whether the configuration data has changed. During the scheduling and running of the command processing task, if it is confirmed that the command to modify the configuration data of the emulation board is received from the network management system, the emulation board executes reset 409; otherwise, the emulation board returns to 407 maintain normal working status;

409: After the simulation board is reset, return to 402 to start execution;

410: The simulation board is powered off and stopped using.

Refer to FIG. 5 for the execution of the simulated board-to-board service processing task in step 406 .

501: The operating system creates and starts the single-board business processing task;

502: Acquiring the operating mode parameters of the simulated board;

There are three working modes, namely simulating a single business board, simulating multiple business boards and load generator;

503: Obtain board configuration data according to the working mode parameters, such as board name, type, attribute and business-related data;

504: Work in the mode of simulating a single service board;

Complete functions such as board in-position information reporting, business-related configuration and maintenance, performance collection and processing, alarm and event processing, and business simulation.

505: Work in the mode of simulating multiple service boards;

Complete functions such as multiple board in-position information reporting, business-related configuration and maintenance, performance collection and processing, alarm and event processing;

506: Work in load generator mode;

Complete board presence information reporting, business-related configuration and maintenance processing, focusing on load data: generate batch performance data and alarm/event data, and send these data through the device interface 304 frequently and quickly.

After the simulation board works, it can realize the active and passive reporting of the properties of the simulated board, the reporting of board presence information and other interface functions related to the network management system according to the working mode and its business configuration data, such as: the configuration and performance of the simulation board Functions realized by processing, alarm, maintenance and related business logic.

The network management system can perform configuration, performance processing, alarm, maintenance operation and special service function operation on the emulation single board through the main control board. In this way, relevant verification work on the network management system (including the main control board) can be completed in the absence of a single board. Similarly, when the configured emulation board is a specific service board for subsystem testing, it can cooperate with other service boards in the system equipment to complete the verification function of the subsystem.

When the working mode is to simulate multiple service single boards, from the perspective of the network management system, it is as if a certain address (such as subrack X, slot Y) is actually plugged with a specific service single board, and the network management system can control these virtual single boards. The board performs operations such as configuration, performance processing, alarms, and maintenance.

When the working mode is load generator, it can be used to test the performance and reliability of the network management system (including the main control board).

The selection of the working mode and the type of the emulated single board can be selected not only through the method of software configuration, but also through the method of hardware configuration. If the hardware configuration method is started, it takes precedence over the software configuration method.

In a word, the present invention simulates the target single board from the interfaces and logical functions of each single board, and can simultaneously simulate the attributes and functions of one or more business single boards on one physical single board, and make the universal single board and Other parts of the product system complete information interaction. The invention solves the problems related to the lack of veneers in the product research and development process affecting the progress of the product research and development process, research and development efficiency and research and development costs.

Of course, the present invention can also have other multiple implementations, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention. All changes and deformations should belong to the protection scope of the appended claims of the present invention.

Claims (14)

1, a kind of emulation veneer, be used for the development of equipment and product in the field of communication and control thereof, it is characterized in that, described emulation veneer comprises public frame, interface part and multi-purpose emulation module; Wherein: The common framework is used as a common platform to realize the common tasks of the emulated single board, the common framework includes a software framework and a hardware framework, and the hardware framework is used to realize the described common tasks of the common framework through the software framework. Public tasks, that is, implement hardware drivers, communicate with interfaces, schedule tasks, configure data, and access database functions; The interface part is respectively connected with the public framework and the multi-purpose simulation module, and is used to realize the information interaction between the simulation single board and the main control board and the network management system, and to realize the interaction between the simulation single board and other business single boards. information exchange; The multi-purpose simulation module is connected to the common framework, including a database, a configuration data area and a single-board service function simulation module, which is used to realize the function of simulating each business single-board under the control of the common framework, and the database is different The service function simulation of the type service board provides data support, and the configuration data area includes a simulation single board configuration data area and a simulated single board configuration data area. 2. The simulation board according to claim 1, characterized in that, The software framework includes an embedded operating system, a board-level support package, and an application layer common task scheduling processing framework; The hardware framework is a general control module based on a controller as the core, including a controller, a memory, peripheral interface devices and programmable logic devices. 3. The emulation board according to claim 1, wherein the interface part includes an interface bus, a communication interface connected to the interface driver and the adaptation part, other service board signal interfaces, and the emulation board external interface ;in: The communication interface is used for information interaction between the simulation board and the main control board or other business boards; The interface driving and adaptation part is used to provide address identification and signal driving functions for information interaction between the emulation board and the main control board or the other service boards; The other service single board signal interface is used to transmit service signals between the simulation single board and the other service single board; The interface bus is connected to the interface driver and adaptation part, and is used to transmit each interface signal of the interface part; The external interface of the simulation board is used to realize the information interaction between the simulation board and the control panel, including: outputting a working status indication to the control panel, and receiving a simulation command signal from the control panel. 4. The simulation board according to claim 1, characterized in that, The database provides data support for the simulation of the business functions of different types of business single boards, including configuration data, that is, the attributes, configuration, business category and business data of the business single boards; or the simulation program of the simulation function module program and the programmable logic device ; The configuration data area includes a simulated single board configuration data area and a simulated single board configuration data area; wherein, the common framework determines the operating mode of the simulated single board according to the simulated single board configuration data area, and according to the The configuration data in the configuration data area of the simulated single board is used to start the simulation of the service function of the service single board. 5. The simulation board according to claim 1, wherein the business function simulation module of the board realizes the simulation of the business function of a single business board through a software module and a programmable logic device; wherein: Realize the simulation of one or more functions of general configuration and special configuration, analog and digital alarm, analog and digital performance, general maintenance and special maintenance, business logic and control flow through the software module; The simulation of the interface signal of the single service board is realized by the programmable logic device. 6. A simulation method for simulating a single board, comprising the following steps: (a) Construct a public framework based on the common parts of each business type single board, the public framework realizes the public tasks of the simulation single board as a public platform, the public framework includes a software framework and a hardware framework, and the hardware framework is used for Realize the common tasks of the common framework through the software framework, that is, implement various functions of hardware driving, communicating with interfaces, scheduling tasks, configuring data, and accessing databases; (b) Build a multi-purpose simulation module, including database, configuration data area and single-board service function simulation module; said database provides data support for the business function simulation of different types of service boards, and said configuration data area includes a simulation single-board configuration data area and the configuration data area of the emulated single board; (c) perform data configuration on the multi-purpose simulation module and create and execute single-board simulation processing tasks, realize the simulation of each service single-board business function under the control of the public framework, and realize the connection between the simulation single-board and the main board Information interaction between the control single board and the network management system, and information interaction between the simulation single board and other service single boards. 7. The method according to claim 6, wherein step (a) includes the construction of a software framework and a hardware framework, wherein: The software framework includes the construction of an embedded operating system, a board-level support package, and an application layer common task scheduling processing framework; The hardware framework is based on the construction of a general control module with the controller as the core. 8. The method according to claim 6, wherein in step (b): The construction of the configuration data area includes the construction of the simulated single board configuration data area and the simulated single board configuration data area; wherein, the operating mode of the simulated single board is determined according to the simulated single board configuration data area, and according to the The configuration data in the configuration data area of the simulated single board is used to start the simulation of the business function of the business single board; The data of successful configuration of the simulated single board will be stored in the database for subsequent repeated emulation of the business single board. 9. The method according to claim 8, characterized in that, step (b) also includes the construction of a single-board service function simulation module, which is used to realize the simulation of a single service board function; wherein: The single-board service function simulation module realizes one or more functions of general configuration and special configuration, analog and digital alarm, analog and digital performance, general maintenance and special maintenance, business logic and control flow through software modules. simulation; The single-board service function simulation module realizes the simulation of the interface signal of the single service board through a programmable logic device. 10. The emulation board according to claim 8, characterized in that the data in the configuration data area is directly accessed by category through a common interface maintenance command, or indirectly accessed by some bytes through a board emulation maintenance command . 11. The method according to claim 8, wherein the operating mode of the simulated single board includes simulating a single service board, simulating multiple service boards and load generators; wherein: The mode of simulating a single service board is that the emulated single board only simulates the function of a single service board at a time, by configuring the name, type, address, attribute and business data of the single service board and running the business function of the single board Implementation of the simulation module; The mode of simulating a plurality of service boards is the function of the emulation single board to simultaneously simulate a plurality of service boards, which is realized by configuring the names, types, addresses, attributes and business data of the multiple service boards; The load generator mode is that the simulation single board is only used as a general reporting message function of the load simulation business single board to provide a test of the performance of the network management system, by configuring the name, type, address, and attribute of the business single board And business data realization. 12. The method according to claim 8 or 11, characterized in that, the operating mode of the emulated single board is also selected through hardware dialing. 13. The method according to claim 6, wherein the board simulation processing task in step (c) comprises: Communication interface processing: process the information in the sending and receiving data queue of the communication interface, that is, the network management system sends and receives information to the simulation single board through the main control board, completes receiving information from the communication interface and puts it into the receiving queue, or puts The data in the sending queue is sent to the main control board through the communication interface; Command processing: sequentially read and process the receiving queue information, and put the processing result information into the sending queue as required; Single-board business processing: including business-related configuration and maintenance processing, performance collection and processing, alarm and event processing, and single-board function simulation. 14. The method according to claim 6 or 13, characterized in that the method further comprises step (d): if the emulated single board receives a command for modifying configuration data issued by the network management system, it chooses to execute The simulation of a different service board is replaced; otherwise, the simulation board chooses to maintain the simulation of the original service board.

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