CN115858143A - Software measurement and control system based on Ray framework - Google Patents
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Abstract
The invention discloses a software measurement and control system based on a Ray framework, and relates to the technical field of measurement and control. The invention provides an architecture system of a software measurement and control system based on a Ray framework, which reduces the usage amount of equipment and flexibly controls the calling, allocation and use of resources. The scheme comprises the following steps: the system comprises a radio frequency IP front-end link layer, a task scheduling resource pool and a signal processing function resource pool. And the radio frequency IP front-end link layer receives and encapsulates the network data task packet and distributes the network data task packet to the network center. The task scheduling resource pool is realized on a general computer platform and comprises a Ray scheduling center, an IP bus, a network center, a task library and an algorithm library. The Ray scheduling center has a global scheduling function and distributes tasks to each device for processing. The signal processing function resource pool mainly receives different Ray tasks distributed by a Ray scheduling center and can perform the function of processing the tasks in parallel.
Description
Technical Field
The invention relates to the technical field of measurement and control, in particular to a software measurement and control system based on a Ray framework.
Background
The existing measurement and control station adopts a chimney structure, a plurality of measurement and control systems which are irrelevant to each other are usually deployed in one measurement and control station, the measurement and control systems respectively execute independent measurement and control tasks, a sharing mechanism of equipment does not exist among the systems, and resources of the measurement and control station cannot be fully utilized.
The architecture diagram of the current measurement and control station is shown in fig. 1, wherein: after receiving the downlink signal from the satellite, the antenna transmits the downlink signal to an A/D converter through a channel, converts the downlink signal into a digital signal, then transmits the digital signal to a baseband through the control of a switch matrix for processing, and finally transmits the digital signal to each subsystem device of the ground station. The system has high combination degree of software and hardware, the whole mode is equivalent to a chimney-type structure, the association degree between equipment is not high, the equipment utilization rate is low, the equipment upgrading and updating difficulty is high, the function performance expansibility is insufficient, the measurement and control task processing speed is low, and the manpower and material resources are consumed.
In the existing measurement and control station system, the corresponding measurement and control system is designed for each channel device, the correlation degree between the measurement and control systems is poor, the structures of the baseband devices are dispersed, the size of the devices is large, and the interfaces are complex, so that the resources of a computer cannot be fully exerted; the whole task processing flow is closed, and the association degree with other equipment or systems is not high, so that the resource waste is caused; the measurement and control station equipment has various types and strong specificity and can not be replaced mutually; the link planning is difficult, the resource allocation is not strong, and the computing resources cannot be released quickly.
In view of the above problems, how to construct the relationship between the functions of each structure of the measurement and control system, reduce the usage amount of the device as much as possible, and more flexibly control the allocation and usage of the calling of the resource is a problem to be solved urgently at present.
Disclosure of Invention
In view of this, the invention provides a software measurement and control system based on a Ray framework, which can provide an architecture system of the software measurement and control system based on the Ray framework by analyzing functions and relations among structures of the software measurement and control system, thereby reducing the usage amount of equipment and more flexibly controlling the allocation and use of calling of resources.
In order to achieve the purpose, the technical scheme of the invention comprises the following steps: the system comprises a radio frequency IP front-end link layer, a task scheduling resource pool and a signal processing function resource pool.
And the radio frequency IP front-end link layer is used for AD processing a downlink analog signal received by the antenna receiver from a satellite to convert the analog signal into a digital signal, encapsulating the converted digital signal into a network data task packet through an IP bus and then distributing the network data task packet to a network center.
The task scheduling resource pool is realized on a general computer platform and comprises a Ray scheduling center, an IP bus, a network center, a task library and an algorithm library.
The IP bus is used for receiving the digital signals from the radio frequency IP front end, then packaging the signals into network data packets and sending the network data packets to the network center.
The network center is used for receiving each network data packet from the IP bus, converting the network data packet into network language which can be identified by a computer through virtualization operation, packaging the network language into a network task packet and sending the network task packet to the scheduling center; and the Ray scheduling center receives the network task packet and then sends the network task packet into the task library.
The task library is used for storing each network task transmitted to the Ray scheduling center by the network center, packaging the network tasks into Ray tasks, and then sending the Ray tasks to the Ray scheduling center in a planned way according to the requirements of the Ray scheduling center so as to be distributed to each server device by the Ray scheduling center.
The Ray scheduling center is a global scheduler GSC in a Ray system architecture and has a global scheduling function; the method comprises the following steps that a Ray scheduling center receives a Ray task request from a task library, the basic elements of the Ray task request comprise priority, signal format and satellite orbit parameters, and the Ray scheduling center queues the Ray task to wait for starting according to the priority sequence of the task request to generate a measurement and control task list; and the Ray scheduling center determines an allocation strategy according to the occupation condition and the functional state of the resources of the server equipment according to the sequence in the measurement and control task list, and allocates the Ray tasks to each server equipment in the signal processing functional resource pool for processing.
The algorithm library is used for storing measurement and control function software formed by packaging each measurement and control function;
the signal processing function resource pool comprises a plurality of server devices, and the plurality of server devices form a server cluster; the server equipment has the capability of processing all tasks, receives Ray tasks distributed from the Ray scheduling center and performs Ray task processing in parallel.
Further, the task scheduling resource pool also comprises a monitoring center and a recording center.
The recording center is used for recording the task data in the system in real time to change the dynamic state, and the function of storing and backing up is realized.
The monitoring center is used for monitoring the working state of the system and giving an alarm when an error occurs.
Furthermore, the measurement and control function software in the algorithm library comprises signal processing software and information processing software.
The signal processing software is used for realizing a signal processing function, and the signal processing function comprises the functions of measurement and control signal acquisition and tracking, frame synchronization, code synchronization and bit synchronization.
The information processing software is used for realizing an information processing function, and the information processing function comprises functions of remote measurement, remote control, speed measurement and distance measurement and remote control processing;
further, the capacity of each server device for processing tasks is the same; the server equipment has a record storage function and is used for backing up and recording processed data results in real time.
Has the advantages that:
1. the invention provides a software measurement and control system based on a Ray framework, which is used for researching and analyzing the existing measurement and control system, and provides a framework system scheme of the software measurement and control system based on the Ray framework based on the connection between functions of each structure of the measurement and control system and the Ray distributed engine.
2. The invention provides a Ray frame-based software measurement and control system, which comprises a radio frequency IP front-end link layer, wherein the radio frequency IP front-end link layer carries out AD processing on a downlink analog signal received by an antenna receiver from a satellite so as to convert the analog signal into a digital signal, and the converted digital signal is packaged into network data task packets through an IP bus and then distributed to a network center, thereby being beneficial to task execution of computer software.
3. The invention provides a software measurement and control system based on a Ray frame, which comprises a task scheduling resource pool which is embodied in the core of the Ray frame, wherein a Ray scheduling center is a server consisting of a high-performance computer, is equivalent to a GSC (global scheduler) in a Ray system architecture diagram, is a head node of a working cluster, has a global scheduling function, is equivalent to a human brain by understanding that the Ray scheduling center is equivalent to the human brain according to the self, can reasonably judge a task allocation strategy according to the occupation condition of resources and the functional state of equipment, and allocates tasks to each equipment to process
4. Compared with the problem that the combination degree of hardware equipment and software functions in a chimney type structure in the existing scheme is higher, the combination degree of software and hardware in the software measurement and control system architecture is not high, and software and hardware decoupling is realized to the greatest extent.
Drawings
FIG. 1 is a block diagram of an architecture used in a conventional instrumentation station;
fig. 2 is an architecture diagram of a software measurement and control system based on a Ray framework provided by the invention.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention researches and analyzes the existing measurement and control system, mainly analyzes the functions of each structure of the software measurement and control system and the relation among the structures from a Ray distributed engine and provides a framework of the software measurement and control system based on a Ray framework. Fig. 2 is a structure of a Ray-framework-based software measurement and control system proposed in this patent.
The software measurement and control system based on Ray can reduce the usage amount of equipment as much as possible and can more flexibly control the calling, allocation and use of resources. As shown in the figure, the measurement and control system architecture mainly includes a radio frequency IP front-end link, a task scheduling pool and a signal processing function resource pool.
(1) Radio frequency IP front end link layer
The layer is mainly used for AD processing of downlink analog signals received by an antenna receiver from a satellite to convert the analog signals into digital signals, and the converted digital signals are packaged into network data task packets through an IP bus and then distributed to a network center, so that task execution of computer software is facilitated later.
(2) Task scheduling resource pool
The part is the core part of the software measurement and control system architecture based on the Ray framework, and is mainly realized on a general computer platform. The task scheduling resource pool comprises a Ray scheduling center, an IP bus, a network center, a task library, an algorithm library, a monitoring center and a recording center. The IP bus is mainly responsible for receiving digital signals from the radio frequency IP front end, then packaging the signals into network data packets and sending the network data packets to the network center; the network is responsible for receiving each network data packet from the IP bus, and the network data packets become network languages which can be identified by the computer through virtualization operation, and then are packaged into a task packet to be sent to the scheduling center; the Ray scheduling center is a global scheduler GSC in a Ray system architecture, has a global scheduling function, is a head node of a working cluster, has a global scheduling function, namely the Ray scheduling center is equivalent to the human brain, can reasonably judge a task allocation strategy according to the occupation condition of resources and the functional state of equipment, and allocates tasks to each equipment for processing. The specific treatment process comprises the following steps: the method comprises the following steps that a Ray scheduling center receives a Ray task request from a task library, the basic elements of the Ray task request comprise priority, signal format and satellite orbit parameters, and the Ray scheduling center queues the Ray task to wait for starting according to the priority sequence of the task request to generate a measurement and control task list; and the Ray scheduling center determines an allocation strategy according to the occupation condition and the functional state of the resources of the server equipment according to the sequence in the measurement and control task list, and allocates the Ray tasks to each server equipment in the signal processing functional resource pool for processing.
The task library and the algorithm library correspond to two resource pools in the computer system.
The task library is used for storing each network task transmitted to the Ray scheduling center by the network center, packaging the network tasks into Ray tasks, and then sending the Ray tasks to the Ray scheduling center in a planned way according to the requirements of the Ray scheduling center so as to be distributed to each server device by the Ray scheduling center.
The algorithm library is used for storing measurement and control function software formed by packaging each measurement and control function. Each measurement and control function is packaged into software and stored in an algorithm library, for example, the measurement and control signal acquisition tracking, frame synchronization, code synchronization, bit synchronization and other functions included in the signal processing function, and the telemetering, remote control, speed measurement and distance measurement, remote control processing and other functions included in the information processing function; the recording center is used for recording the task data conversion dynamics in the system in real time and has the function of storage and backup; the monitoring center monitors the working state of the system and gives an alarm when an error occurs.
(3) Signal processing function resource pool
The layer mainly comprises server equipment, wherein the server equipment is equivalent to a server with the same function, and the server equipment forms a large server cluster which is each sub working node. The equipment has the capability of processing all tasks, and the server equipment mainly receives different Ray tasks distributed by the Ray scheduling center and can perform the function of processing the tasks in parallel. The server devices have the same task processing capacity, so that the problem that a time-frequency subsystem and a test calibration subsystem belong to a time unification system but two different devices need to be built to meet the two functions is avoided, the construction amount of the devices is reduced to the maximum extent, repeated construction is avoided, and the devices are operated under the concept of a computer, so that the upgrading and the maintenance of the devices are more convenient.
The server devices also have a certain recording and storing function, and can backup and record processed data results in real time to prevent tasks from being lost, which is equivalent to an Object Store in a Ray system architecture.
Compared with the problem that the combination degree of hardware equipment and software functions inside the chimney structure is higher, the combination degree of software and hardware in the software measurement and control system is not so high, and software and hardware decoupling is realized to the greatest extent.
The above description is only a 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 should be included in the protection scope of the present invention.
Claims (4)
1. A software measurement and control system based on a Ray framework is characterized by comprising: the system comprises a radio frequency IP front-end link layer, a task scheduling resource pool and a signal processing function resource pool;
the radio frequency IP front-end link layer is used for AD processing of downlink analog signals received by the antenna receiver from a satellite to convert the analog signals into digital signals, packaging the converted digital signals into network data task packets through an IP bus and then distributing the network data task packets to a network center;
the task scheduling resource pool is realized on a general computer platform and comprises a Ray scheduling center, an IP bus, a network center, a task library and an algorithm library;
the IP bus is used for receiving digital signals from the radio frequency IP front end, then packaging the signals into network data packets and sending the network data packets to the network center;
the network center is used for receiving each network data packet from the IP bus, converting the network data packet into network language which can be identified by the computer through virtualization operation, packaging the network data packet into a network task packet and sending the network task packet to the scheduling center; the Ray scheduling center receives the network task packet and then sends the network task packet into the task library;
the task library is used for storing each network task transmitted to the Ray scheduling center by the network center, packaging the network task into a Ray task, and then sending the Ray task to the Ray scheduling center in a planned way according to the requirement of the Ray scheduling center so as to be distributed to each server device by the Ray scheduling center;
the Ray scheduling center is a global scheduler GSC in a Ray system architecture and has a global scheduling function; the method comprises the following steps that a Ray scheduling center receives a Ray task request from a task library, the basic elements of the Ray task request comprise priority, signal format and satellite orbit parameters, and the Ray scheduling center queues the Ray task to wait for starting according to the priority sequence of the task request to generate a measurement and control task list; the Ray scheduling center determines an allocation strategy according to the sequence in the measurement and control task list and the occupation condition and the functional state of the resources of the server equipment, and allocates Ray tasks to each server equipment in the signal processing functional resource pool for processing;
the algorithm library is used for storing measurement and control function software formed by packaging each measurement and control function;
the signal processing function resource pool comprises a plurality of server devices, and the server devices form a server cluster; the server equipment has the capability of processing all tasks, receives the Ray tasks distributed by the Ray scheduling center and performs Ray task processing in parallel.
2. A Ray framework-based software measurement and control system as claimed in claim 1, wherein the task scheduling resource pool further comprises a monitoring center and a recording center;
the recording center is used for recording the task data in the system in real time to change the dynamic state and realize the function of storage and backup;
the monitoring center is used for monitoring the working state of the system and giving an alarm when an error occurs.
3. The software measurement and control system based on the Ray framework as claimed in claim 1, wherein the measurement and control function software in the algorithm library comprises signal processing software and information processing software;
the signal processing software is used for realizing a signal processing function, and the signal processing function comprises a measurement and control signal capturing and tracking function, a frame synchronization function, a code synchronization function and a bit synchronization function;
the information processing software is used for realizing information processing functions, and the information processing functions comprise functions of remote measurement, remote control, speed measurement and distance measurement and remote control processing.
4. A Ray framework-based software measurement and control system as claimed in any one of claims 1, 2 or 3, wherein each server device has the same capability of processing tasks; the server equipment has a record storage function and is used for backing up and recording processed data results in real time.
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