CN107809388B - Script configuration based autonomous path-finding switch matrix network control method and system - Google Patents
Script configuration based autonomous path-finding switch matrix network control method and system Download PDFInfo
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Abstract
The invention discloses an autonomous path-finding switch matrix network control method and system based on script configuration, comprising the following steps: abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed; searching all paths between an input end and an output end in the switch matrix network through a depth-first search algorithm according to the connection relation of the node directed graph; establishing a routing table of the switch matrix network according to all searched paths; and opening a corresponding path in the routing table according to the actually controlled route. By introducing the script control technology, the problems of repeated development, time consumption and labor consumption in the development of the switch matrix network software are solved.
Description
Technical Field
The invention belongs to the technical field of automatic testing, and particularly relates to a script configuration based autonomous way-finding switch matrix network control method and system.
Background
With the increase of the scale and the integration of the automatic test system, one set of automatic test system often includes a plurality of test instruments, and a switch matrix network is required to perform interconnection and intercommunication of input and output. After the traditional switch matrix network is designed and shaped, the access and control software of the matrix are fixed, thereby bringing three problems: 1) modifying the switch matrix hardware requires modifying the control software. 2) The matrix channel is complex, the number of cascade layers is large, and the software development difficulty is high. 3) The traditional switch matrix network software has no reusability, one switch matrix is developed, and one set of control software needs to be maintained.
The switch matrix network is widely used in various automatic test systems and is an indispensable core component in the field of automatic test. Various automatic test working conditions of distribution, automation and no intervention can be realized through the switch matrix network.
The switch matrix network is generally formed by connecting microwave nodes such as one-to-two, one-to-four, one-to-six microwave switches, attenuators, phase shifters and the like through microwave cables. In the design and development of the existing switch matrix network software, generally, after the design and the design of switch hardware are finalized, the route is controlled one by one according to the route condition of the matrix hardware route connection. The software control technical scheme widely adopted at present needs manpower to find the microwave switch, the microwave device and other devices needing to be controlled which are connected in series in the channel, and hard codes the control information of the devices to the software of the switch matrix. When automatic test is carried out, the control information of the route is sent to the FPGA, and the corresponding route is opened. When designing an automatic test system, the microwave switch and the microwave device of the switch matrix network are frequently adjusted according to test requirements, so that the switch matrix control software needs to be correspondingly and frequently modified. Therefore, the existing switch matrix network software is repeatedly developed and frequently modified, the labor cost, the development time and the product cost are increased, and the economic benefit is reduced.
The problems of the existing switch matrix network control technology mainly include:
1) lack of versatility. Development of one switch matrix network hardware needs development of matched control software, and development efficiency is low.
2) There is a lack of flexibility. And the modification of the routing path of the switch matrix network requires modification of control software, and the software development cost is high.
3) It is economically disadvantageous. The switch matrix is complex to control, and the time cost and the labor cost required by software development are greatly increased along with the increase of the cascade layer number of the microwave devices.
4) And lack of maintainability. Generally, one manufacturer can produce hundreds of switch matrix networks with different models in a year, which means hundreds of sets of control software need to be maintained, and the maintenance cost of the product is increased.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides an autonomous path-finding switch matrix network control method and system based on script configuration, and by introducing a script control technology, the general problems of repeated development, time consumption and labor consumption in the development of switch matrix network software are solved. The flexible configuration, the universality and the maintainability of the system are brought through the script control technology.
The script configuration based autonomous path-finding switch matrix network control method comprises the following steps:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
The switch matrix network is provided with n input ends and m output ends, wherein one input end is allowed to be provided with a plurality of output ends, one output end is allowed to be provided with a plurality of input ends, and each input end is connected with the output end through a microwave node;
the two ends of each channel are respectively an input end and an output end, and the middle of each channel is provided with a plurality of cascade nodes; the input end, the plurality of cascade nodes and the output end have a connection relation.
The microwave node comprises: microwave switches, attenuators, phase shifters, etc.
The script file of the step (1):
wherein "SwitchMatrixModule" represents a microwave node declaration tag; the "SwitchMatrixModule" tag is used to declare all microwave device nodes used by the switch matrix network; the "SPSwitch" tag in "SwitchMatrixModule" is a microwave node attribute that includes: port number, port name, address or control data to be sent to the FPGA when routing.
"switchmatrix network" represents a routing connection relation label; the 'SwitchMatrixNetwork' label is used for storing the routing connection relation of the microwave device so as to facilitate the search algorithm to establish a tree structure and search a passage. The "SPSwitch" label in "switch matrix network" is the connection relationship of the microwave nodes, and is used to store the route.
The script file of the step (1):
(101): generating microwave nodes of a switch matrix network according to the configuration condition of the actual microwave nodes;
(102): and generating the connection relation among all the microwave nodes according to the generated microwave nodes so as to form a switch matrix network.
The connection relationship among the microwave nodes comprises the following steps: the connection relationship among the input end, the cascade node and the output end;
one path in the step (3) is a piece of data in the routing table, and each piece of data in the routing table comprises an input end serial number, an output end serial number and a name of a cascade node through which the path between the input end and the output end passes;
and (4) when the corresponding path in the routing table is opened, setting parameters of the microwave nodes included in the path.
The step (4) sets parameters of the microwave nodes passed by the path, and adopts the following syntax:
@xxxx:@yyyy:Phase(a):Atta(b)
where @ xxxx denotes an input terminal, @ yyyyy denotes an output terminal, phase (a) denotes that a path includes a phase shifter, the phase shifter shifts a phase, and atta (b) denotes that the path includes: and the attenuation value of the attenuator is b.
The automatic way-finding switch matrix network control system based on script configuration comprises: a memory, a processor, and computer instructions stored on the memory and executed on the processor, which when executed on the processor, perform the steps of:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, perform the steps of:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
Compared with the prior art, the invention has the beneficial effects that:
based on the defects in the design and development of the existing switch matrix network, the invention provides an autonomous path-finding switch matrix network control method based on script configuration, and the problems of the three aspects are solved. The switch matrix network stores the routing relation through the configurable topology script, and realizes the autonomous routing. And the switching matrix network engine reads the routing script and dynamically generates a routing topological graph. The engine autonomously searches for the paths existing in the system through a graph search algorithm built in the system. Therefore, the development of a new matrix network does not need to develop a new control program, and only a routing script needs to be configured. The invention solves the general problems of non-universality, repeated development, time and labor waste in the development of the switch matrix network software. The switch matrix brings flexible configuration and universality of the system through a script control technology. A new switch matrix network is developed and maintained, only one routing script is developed, control software does not need to be re-developed, and a large amount of labor cost and time cost are saved.
The key technology of the invention comprises three parts: 1) a directed graph representation method of a switch matrix network. According to the invention, various microwave nodes of the switch matrix network are abstracted into hierarchical tree representation of the nodes, and the autonomous routing of the switch matrix network is realized through a depth-first-based path search algorithm. 2) Scripts for routing information are saved. The decoupling of hardware and software is realized through a script control technology. The development of the switch matrix network does not need to develop control software any more, and only one routing script needs to be developed. The software development difficulty is reduced, the labor cost is reduced, and the development time is saved. 3) The system develops a set of complete control languages, and complete control over switch hardware is achieved.
The invention designs a whole set of open and intelligent matrix network control method, solves the general problems of non-universality, repeated development, time and labor waste in the conventional switch matrix network software development, and obtains good economic benefit. The switch matrix network realizes intelligent autonomous path finding through the configurable topology script without manual intervention, and is time-saving and labor-saving. And flexible configurability and universality of the system are brought through a script control technology. A set of codes is developed and maintained in the prior art, a routing script is developed and maintained at present, the configurability, the universality, the economy and the maintainability of the switch matrix network are realized, and a large amount of labor cost and time cost are saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a mathematical model of a switch matrix network.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The switch matrix network has a plurality of inputs and a plurality of outputs. One input end can have a plurality of output ends, one output end can have a plurality of input ends, and each input end and each output end are connected through a microwave switch and a microwave device, so that the routing is numerous and complicated. Theoretically, a matrix of n inputs and m outputs may have n × m routes. For a matrix of 100 inputs and 100 outputs, 10000 routes are theoretically available, and the traditional control software development technology can not be developed basically, but the invention is not limited by the number of the inputs and the outputs.
In the invention, the microwave switch and the microwave device are abstracted into the internal cascade nodes of the directed graph, the switch matrix network can be abstracted into the directed graph, and the paths existing in the system can be automatically searched through the depth-first search algorithm of the graph. The model is shown in figure 1.
In this example, the path of input 1 can be found autonomously by a depth-first algorithm: output 1, output 2, output 3, etc. The path of input n can be found autonomously: output m-1, output m, etc. The invention realizes intelligent autonomous routing of the switch matrix network through a depth-first search algorithm of the graph, and is not limited by the number of input and output ports, so that the invention has strong universality and universality.
The routing relationships in fig. 1 need to be saved by scripting in order for the switching engine to read and analyze the system's paths. The routing script fully maintains all the routing information in fig. 1. For example, the routing script for input 1 is as follows:
the script fragment completely retains all path information of input 1. In this example, cascade node 1 points to cascade node 2, and one output of cascade node 2 points to cascade output k, which is already the output. The other output end of the cascade node 2 is directly output without cascading other microwave devices. The switch matrix network engine analyzes the script and can establish a complete routing table in the memory. The hardware routing structure of the input 1 is changed, only the routing script of the input 1 needs to be changed, the flexible configuration of the routing is completely realized, and the control code does not need to be rewritten.
The switch matrix network is typically controlled remotely by programmed commands. Due to the complexity of microwave devices inside the switch matrix network, a link may include various microwave nodes such as attenuators, phase shifters, etc., and parameters such as attenuation values and phases of these components need to be controlled while routing. The invention designs a universal and simple control language, and realizes complete control of the routing parameters. The syntax is as follows:
@xxxxx:@yyyy:Phase(a):Atta(b)
where @ xxxxx denotes an input port, @ yyyyy denotes an output port, phase (a) denotes that the route includes a phase shifter, the phase to be shifted is a, and atta (b) denotes that the route has an attenuator, and the attenuation value is b. For example:
@ input 1: @ output 2: Phase (30): Atta (50)
This statement shows the route that opens input 1 and output 2, while setting the phase shifter of that route to 30 degrees phase shift and the attenuator to 50db attenuation.
@ input 2: @ output m: Phase (90)
This statement shows opening the route of input 2 and output m while setting the phase shifter for that route 90 degrees out of phase, which route has no attenuator.
Through the complete set of control language, complete control over the switch matrix network can be achieved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The script configuration based autonomous path-finding switch matrix network control method is characterized by comprising the following steps:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
2. The script based configuration autonomous way-finding switch matrix network control method as claimed in claim 1, wherein said switch matrix network has n inputs, m outputs, one of which allows several inputs, each input being connected to an output by a microwave node;
the two ends of each channel are respectively an input end and an output end, and the middle of each channel is provided with a plurality of cascade nodes; the input end, the plurality of cascade nodes and the output end have a connection relation.
3. The script-based configured autonomous way-finding switch matrix network control method of claim 1, wherein said microwave node comprises: microwave switch, attenuator, phase shifter.
4. The script configuration based autonomous way-finding switch matrix network control method according to claim 1, wherein the script file of step (1):
(101): generating microwave nodes of a switch matrix network according to the configuration condition of the actual microwave nodes;
(102): and generating the connection relation among all the microwave nodes according to the generated microwave nodes so as to form a switch matrix network.
5. The script-based configured autonomous way-finding switch matrix network control method of claim 1, wherein the connection relationship between the microwave nodes comprises: the connection relation among the input end, the cascade node and the output end.
6. The script configuration based autonomous way-finding switch matrix network control method according to claim 1, wherein one path in the step (3) is a piece of data in a routing table, and each piece of data in the routing table includes an input end serial number, an output end serial number, and a name of a cascade node through which the path between the input end and the output end passes.
7. The script configuration based autonomous way-finding switch matrix network control method according to claim 1, wherein when the corresponding path in the routing table is opened in the step (4), the microwave nodes included in the path are subjected to parameter setting.
8. The script configuration based autonomous routing switch matrix network control method according to claim 1, wherein the step (4) performs parameter setting on the microwave nodes passed by the path by using the following syntax:
@xxxx:@yyyy:Phase(a):Atta(b)
where @ xxxx denotes an input terminal, @ yyyyy denotes an output terminal, phase (a) denotes that a path includes a phase shifter, the phase shifter shifts a phase, and atta (b) denotes that the path includes: and the attenuation value of the attenuator is b.
9. The automatic way-finding switch matrix network control system based on script configuration is characterized by comprising: a memory, a processor, and computer instructions stored on the memory and executed on the processor, which when executed on the processor, perform the steps of:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
10. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, perform the steps of:
step (1): abstracting a switch matrix network into a directed graph, and abstracting microwave nodes in the switch matrix network into internal cascade nodes of the directed graph; configuring a script file, and storing directed graph connection relations of all microwave device nodes in a switch matrix network; if the internal routing structure of the switch matrix network is changed, only the routing configuration of the changed microwave nodes in the corresponding script file needs to be changed;
step (2): searching all paths between the input end and the output end in the switch matrix network through a depth-first search algorithm according to the node directed graph connection relation stored in the step (1);
and (3): searching all paths according to the step (2), and establishing a routing table of the switch matrix network;
and (4): and opening a corresponding path in the routing table according to the actually controlled route.
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