CN111698017A - Satellite cloud measurement and control platform - Google Patents
Satellite cloud measurement and control platform Download PDFInfo
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Abstract
The invention discloses a satellite cloud measurement and control platform, which comprises: the equipment monitoring layer is used for local equipment program control; collecting and reporting measurement and control routing information of a local survey station; the resource management layer is used for summarizing and maintaining the measurement and control routing information to generate a measurement and control routing summary table; according to the measurement and control route configuration principle of each satellite, the ground measurement and control resources are autonomously configured; the virtualization layer is used for providing a running environment for other layers; the data layer is used for carrying out automatic addressing of satellite remote-measuring routing and automatic addressing of remote-control routing by accessing a measurement and control routing general table maintained by the resource management layer; the service layer is used for providing basic services; and the client layer is used for deploying client software of an end user, sensing logical uplink/downlink and a baseband and has a fast hot migration or dual active working mode. The invention can realize the cloud processing of the user remote measurement/control function, namely, the measurement and control channel virtualization, the measurement and control task parallelization, and the measurement and control resource and control center distribution.
Description
Technical Field
The invention belongs to the technical field of on-orbit management of space spacecrafts, and particularly relates to a satellite cloud measurement and control platform.
Background
The traditional ground measurement and control system architecture design usually adopts a mode of 'transmitting a new satellite and building a set of measurement and control system', namely, the measurement and control system uses a single satellite as a unit and enlarges the scale in a building block mode, and the top-level design of full optimization from the perspective of measurement and control requirements of the whole fleet is lacked.
Disclosure of Invention
The technical problem of the invention is solved: the satellite cloud measurement and control platform overcomes the defects of the prior art, and can realize the cloud processing of the user remote measurement/control function, namely measurement and control channel virtualization, measurement and control task parallelization, measurement and control resource and control center distribution.
In order to solve the technical problem, the invention discloses a satellite cloud measurement and control platform, which comprises:
the equipment monitoring layer is used for local equipment program control; collecting and reporting measurement and control routing information of a local survey station;
the resource management layer is used for summarizing and maintaining the measurement and control routing information reported by the equipment monitoring layer and generating a measurement and control routing summary table; according to the measurement and control route configuration principle of each satellite, the ground measurement and control resources are autonomously configured;
the virtualization layer is used for data interaction and communication among the equipment monitoring layer, the resource management layer, the data layer and the service layer and providing a running environment for the equipment monitoring layer, the resource management layer, the data layer, the service layer and/or the client layer;
the data layer is used for carrying out automatic addressing of satellite remote-measuring routing and automatic addressing of remote-control routing by accessing a measurement and control routing general table maintained by the resource management layer;
the service layer is used for providing basic services; wherein, the basic service includes: the system comprises a remote measurement service, a remote control service, a task scheduling, an alarm service, a health diagnosis service and an on-duty report service;
and the client layer is used for deploying client software of an end user, sensing logical uplink/downlink and a baseband and has a fast hot migration or dual active working mode.
A device monitoring layer comprising:
the local station monitoring system is used for monitoring and recording the working state of ground measurement and control equipment and in-station public facilities, setting operation parameters and giving an alarm on the fault of the ground equipment; monitoring the running states of all equipment in the local station in real time; managing the measurement and control channel resource pool and the baseband resource pool to enable unit resources of the measurement and control channel resource pool and the baseband resource pool to have plug and play capability;
the measurement and control channel resource pool and the baseband resource pool have an attribute setting function and are used for recording technical parameter indexes of equipment, planning a resource equipment path in resource scheduling and carrying out related processing on ground resource use, so that the purpose of monitoring equipment in a local station is achieved, and the equipment in the local station is monitored and managed by matching with a resource management layer.
The unit resource of the measurement and control channel resource pool is a measurement and control link composed of an antenna, a low noise amplifier, a down converter, an up converter and a power amplifier;
the unit resources in the baseband resource pool are independent baseband channels with remote control or remote measurement capability and are divided into remote measurement unit resources and remote control unit resources;
the unit resources of the measurement and control channel resource pool are connected with the remote measurement unit resources of the baseband resource pool through a downlink switch matrix to form a downlink measurement and control route;
the unit resources of the measurement and control channel resource pool are connected with the remote control unit resources of the baseband resource pool through an uplink switch matrix to form an uplink measurement and control route;
the downlink measurement and control routes and the uplink measurement and control routes are collectively called as measurement and control routes, each local station monitoring system knows the resource allocation state of a station by maintaining one local measurement and control route table and reports the local measurement and control route table to a resource scheduling module of a main station, the main station resource scheduling module knows the resource allocation state of the whole station network measurement and control system by summarizing the measurement and control route tables of each station, and the measurement and control resource allocation task is actively initiated when any measurement and control link is found to be missing according to the measurement and control link allocation principle of each satellite.
The equipment monitoring layer collects and reports the measurement and control routing information of the local survey station, and the method comprises the following steps:
when a certain link is abnormal, automatically deleting the information of the abnormal certain link in the measurement and control routing table; reporting the resource management layer at the same time;
the reporting of the measurement and control routing information of the local measurement station comprises three driving modes of time, event and inquiry: reporting in a fixed time slot, and reporting in each fixed time slot; reporting after the routing table maintained locally is changed; and reporting after receiving the route information refreshing request.
The measurement and control routing information comprises: the system comprises a measurement and control link number, a remote control or remote measurement zone bit, a mode zone bit, satellite ID information, a baseband IP, a baseband port number, instruction ID information and a link uplink on-off state zone bit.
A resource management layer comprising: the system comprises a unified station monitoring management module and a resource scheduling module;
the unified station monitoring management module is used for displaying the working state and parameters of the managed equipment in each station in a centralized manner, and reserving the quantity of the expanded ground measurement and control stations and the capacity of the equipment in the stations; the monitoring management module of the unified station has manual control capability of all equipment in all the survey stations managed by the monitoring management module of the unified station;
the resource scheduling module is used for automatically planning the backup measurement and control links and the emergency measurement and control links of each satellite in all the measurement stations managed by the resource scheduling module according to the unit resource attribute setting, and has the capability of manually initiating and automatically initiating execution;
the minimum configuration principle of the measurement and control system of each satellite is as follows: two independent telemetering receiving links and one daily main instruction sending link.
The resource scheduling of the resource management layer includes the following functions: according to different operator authorities, the functions of adding, deleting, modifying and searching the satellite parameter database are realized.
A virtualization layer comprising: a computing resource pool, a storage resource pool and a network resource pool; the unit resources accessed in the computing resource pool, the storage resource pool and the network resource pool conform to the plug and play standard so as to realize the access and exit use scenes of different resource devices of the ground measurement and control system.
A data layer to: receiving an instruction code transmitted by a service layer, converting the instruction code into an instruction binary code, and transmitting the instruction binary code to a corresponding baseband; performing macrocyclic comparison according to the telemetering information, and feeding back a comparison result, wherein the macrocyclic comparison is passed and then an execution code is sent, or the execution code is directly sent when the macrocyclic is ignored; and storing the local file of the received multi-channel telemetering data original codes according to the time and the channel identification, and simultaneously forwarding the optimized one-channel telemetering original code to a service layer.
The service layer has two processing modes of transparent transmission and coding on the remote control coding so as to realize the support of special scenes.
The invention has the following advantages:
the invention discloses a satellite cloud measurement and control platform which can realize 'clouding' processing of a user remote measurement/control function, namely measurement and control channel virtualization, measurement and control task parallelization, measurement and control resource and control center distribution. The virtualization of the measurement and control channel means that a user accesses a logical uplink/downlink and a baseband, and a physical link (the uplink/downlink and the baseband) is automatically allocated by a platform system and has a fast hot migration or dual active working mode. The satellite cloud measurement and control platform is used for providing flexible measurement and control package service for potential users conveniently, and measurement and control service of complete trusteeship, customized satellite measurement and control center lease, station lease and even collaborative management and control style can be supported in a rapid, flexible, economical and efficient mode. The user does not have to consider how to build and manage his own ground station infrastructure.
Drawings
Fig. 1 is a structural diagram of a satellite cloud measurement and control platform in an embodiment of the present invention;
FIG. 2 is a diagram of a device monitoring layer and a resource management layer according to an embodiment of the present invention;
fig. 3 is a diagram of an intra-station network structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, in this embodiment, the satellite cloud measurement and control platform includes six layers of structures in architecture: the system comprises a device monitoring layer, a resource management layer, a virtualization layer, a data layer, a service layer and a client layer. The equipment managed by the platform is divided according to resource pools, wherein the resource pools can be divided into five types: the system comprises a measurement and control channel resource pool and a baseband resource pool which are deployed in an equipment monitoring layer, and a computing resource pool, a network resource pool and a storage resource pool which are deployed in a virtualization layer. The unit resources accessed in each resource pool meet the plug and play standard, and the practical situations that the use requirements of the ground measurement and control system are changed continuously, such as the access, exit and the like of different resource devices, the scale increase and decrease of the universal system, the capacity improvement and the like can be realized conveniently by matching with the station monitoring and resource scheduling module. The 'measurement and control channel resource pool' and the 'baseband resource pool' belong to tight coupling connection, and resource management is realized by the station monitoring module. The satellite cloud measurement and control platform realizes the cloud processing of the remote measurement/control function of a terminal user, namely the virtualization of a measurement and control channel, the distribution of measurement and control resources and a control center and the parallelization of measurement and control tasks. The virtualization of the measurement and control channel means that a user accesses a logical uplink/downlink and a baseband, and a physical link (the uplink/downlink and the baseband) is automatically allocated by a platform system and has a fast hot migration or dual active working mode. Through the design of layered service and isolation encapsulation, all terminal users can only access authorized virtual measurement and control channels and virtual baseband resources through a service layer, and cross-layer service capability is not provided, so that the terminal users cannot directly access entity equipment, the safety of a platform is ensured, and autonomous maintenance and management of the entity resources are realized in the satellite-based communication cloud measurement and control.
In this embodiment, as shown in fig. 3, the satellite cloud measurement and control platform adopts a multi-center distributed network structure, and internal dual networks (a telemetry and remote control network and a fast orbit determination network) are integrated. The remote measuring and controlling network consists of m + n stations which are distributed in m satellite measuring and controlling centers and n transparent measuring and controlling stations distributed at network edge nodes. And each satellite telemeters/remotely controls a main processing process and a standby processing process, and load balancing configuration is carried out through the m centers. In the fast orbit determination network, any two central nodes are selected, and other stations are simultaneously used as edge nodes of the fast orbit determination network to establish network connection with the two orbit determination central nodes. The whole network has no influence on the whole system task under the condition of losing any one center or station. The scheme of double-network load balancing is adopted in the station, and each network device is connected with each other by two lines. When both the two lines work normally, the loads between the two lines are balanced dynamically; when one line is interrupted due to a fault, all network loads can be seamlessly switched to the other normal line, and uninterrupted network communication is guaranteed.
The structure of each layer is explained separately below.
Equipment monitoring layerFor local device program control; and collecting and reporting the measurement and control routing information of the local survey station.
In this embodiment, the device monitoring layer may specifically include: the local station monitoring system is used for monitoring and recording the working state of ground measurement and control equipment and in-station public facilities, setting operation parameters and giving an alarm on the fault of the ground equipment; monitoring the running states of all equipment in the local station in real time; managing a measurement and control channel resource pool and a baseband resource pool, and enabling unit resources of the measurement and control channel resource pool and the baseband resource pool to have plug-and-play capability by providing existing equipment, a current main stream and a latest equipment driving program library; the measurement and control channel resource pool and the baseband resource pool have an attribute setting function and are used for recording technical parameter indexes of equipment, planning a resource equipment path in resource scheduling and carrying out related processing on the use of other ground resources, so that the purpose of monitoring equipment in a local station is achieved, and the equipment in the local station is monitored and managed by matching with a resource management layer.
Preferably, the unit resource of the measurement and control channel resource pool mainly comprises a single antenna and more than 70M radio frequency equipment matched with the single antenna, and specifically may include: the system comprises a measurement and control link consisting of an antenna, a low noise amplifier (main/standby), a down converter (main/standby), an up converter (main/standby) and a power amplifier (main/standby); the unit resources in the baseband resource pool are independent baseband channels with remote control or remote measurement capability and are divided into remote measurement unit resources and remote control unit resources; for example: one cotex base band is provided with one remote control uplink channel and two remote measurement downlink channels, so that three unit resources can exist in the base band, wherein one unit resource attribute comprises a remote control identifier, and the other two unit resource attributes comprise remote measurement identifiers. Therefore, simultaneous telemetry multiplexing of one baseband to multiple stars is realized.
In this embodiment, a unit resource of the measurement and control channel resource pool is connected with a unit resource telemetering of the baseband resource pool through a downlink switch matrix to form a downlink measurement and control route; the unit resources of the measurement and control channel resource pool are connected with the remote control unit resources of the baseband resource pool through an uplink switch matrix to form an uplink measurement and control route, the downlink measurement and control route and the uplink measurement and control route are collectively called as a measurement and control route, each local station monitoring system knows the resource allocation state of a station through maintaining a local measurement and control route table and reports the local measurement and control route table to a resource scheduling module of a master station, the master station resource scheduling module knows the resource allocation state of the whole station network measurement and control system through summarizing the measurement and control route tables of each station, and the measurement and control resource allocation task is actively initiated according to the configuration principle of each satellite measurement and control link when any measurement and control link is found to be missing.
Preferably, when a certain link is abnormal, the information of the abnormal certain link is automatically deleted in the measurement and control routing table; and reporting to the resource management layer. The reporting of the measurement and control routing information of the local measurement station comprises three driving modes of time, event and inquiry: reporting in a fixed time slot, wherein reporting is carried out in each fixed time slot (default is 1 minute, and adjustable through configuration); reporting after the routing table maintained locally is changed; and reporting after receiving the route information refreshing request.
In this embodiment, the device monitoring layer may further include the following modules:
the measurement and control channel resource pool management module: for realizing plug and play and attribute management of "unit resources".
A baseband resource pool management module: for the unit resource with uplink capability, the attribute table at least stores information such as baseband IP, baseband unit resource ID number, unit resource physical port number, network port number and the like. And for all unit resources locked in the downlink telemetry state, acquiring information such as satellite ID numbers, baseband IPs, unit resource ID numbers, unit resource physical port numbers, network port numbers and the like in frame synchronization, and reporting when the information is to be inquired. And for all unit resources with unlocked downlink telemetry states, summarizing and actively reporting information such as satellite ID items, baseband IP (Internet protocol), unit resource network port numbers and the like.
Intermediate frequency switch matrix management module: and managing the input and output corresponding relation of the up/down switch matrix. Information transmission is realized by maintaining the corresponding tables of the upper/lower channels and the baseband resources (the link numbers of the measurement and control channels, the ID numbers of the baseband unit resources and the physical port numbers of the baseband unit resources).
Device driver library: the system is responsible for providing the existing equipment, the current mainstream and the latest equipment driver library, so that the unit resource in each resource pool has pluggable plug-and-play capability similar to the USB concept, and the resource calling is realized by the cooperation of the station monitoring and resource scheduling module. Preferably, as shown in table 1, the measurement and control routing information may include: the link number of the measurement and control channel, a remote control/remote measurement flag bit, a mode flag bit, a satellite ID, a baseband IP, a baseband port number and an instruction ID. The format of the measurement and control routing table is as follows:
TABLE 1
Wherein, observing and controlling the channel link number: the system consists of an antenna, an HPA, an UC, a DC, an LNA and the like, and can completely represent the condition of channel link equipment. Remote control/telemetry flag bit: filling in TC/TM to show the remote measuring and control attribute of the link, wherein the remote measuring attribute is obtained by remote measuring decoding, and the remote control attribute is directly filled in when writing the table. Mode flag bit: filling in single receiving/duplex/emergency, showing the current mode state attribute of the link, and knowing through the associated antenna attribute. Satellite ID: and filling in a satellite code number to show the satellite attribute corresponding to the information transmitted and received by the link, and obtaining the satellite attribute through telemetering decoding. And baseband IP: filling in the base band IP address, representing the base band attribute connected with the link, and knowing through the satellite ID and the link information. Baseband port number: filling in the port number of the baseband, indicating the specific port number of the baseband connected with the link, and knowing through the satellite ID and the link information. Link uplink on-off state: and filling the on-off state of the radio frequency link, and indicating whether the radio frequency link has power output. Instruction ID: filling TC1/TC2/TC3 to show the remote control frequency point information of the link, and reading the frequency parameter of the Up Converter (UC) or the Power Amplifier (PA) and the antenna polarization angle information to obtain the information in a combined manner, and the specific frequency and polarization information does not need to be filled in the measurement and control routing table.
Under normal conditions, each satellite has two telemetering route records and one remote control route record, wherein the two telemetering records comprise a duplex antenna record, a single receiving antenna record and a duplex antenna remote control record. Under the scene of calling the system emergency antenna, each satellite with emergency support exists, and a measurement and control routing table of each satellite supplements a remote measurement routing record and an emergency remote control routing record of the emergency antenna.
The first establishing method is named as a baseband unit resource traversal method, and the telemetering routing table establishing process comprises the following steps: with the telemetering unit resource in the baseband resource pool as a reference, firstly, decoding the satellite ID information locked by the current baseband, and filling in a remote telemetering marker bit as follows: TM; decoding the satellite ID information locked by the current baseband by taking the telemetering unit resource in the baseband resource pool as a reference, and filling in the obtained satellite ID; the local station monitors the connection relation between the downlink switch matrix sky emission and the baseband to obtain the radio frequency link information corresponding to the unit resource baseband, and fills in the number of the measurement and control link; filling mode flag bits (single receiving/duplex/emergency) according to the antenna attributes; the local station monitors the connection relation between the downlink switch matrix sky emission and the baseband to obtain the unit resource baseband IP and fills the record; the local station monitors the connection relation between the downlink switch matrix sky emission and the baseband to obtain the baseband port number of the unit resource and fill in records; the TC _ ID entry is assigned a null value.
The remote control routing table establishment process comprises the following steps: the remote control unit resource in the baseband resource pool is taken as a reference, and the remote control/remote measurement flag bit is filled firstly as follows: TC; the local station monitors the connection relation between the uplink switch matrix and the baseband to obtain the radio frequency link information corresponding to the unit resource baseband, and fills in the serial number of the measurement and control link; the local station monitors the connection relation between the uplink switch matrix and the baseband, can acquire the radio frequency link information corresponding to the unit resource baseband and fills in TC _ ID information; filling in mode flags (duplex/emergency) according to antenna attributes; inquiring a piece of routing information consistent with the number of the measurement and control link (mainly aiming at searching a duplex antenna used by the satellite) in the existing measurement and control routing table, obtaining satellite ID information through the routing record, and filling the unit resource baseband IP into the record; a piece of routing information consistent with the number of the measurement and control link (mainly aiming at searching the duplex antenna used by the satellite) is inquired in the existing measurement and control routing table, satellite ID information is obtained through the routing record, and the baseband port number of the unit resource is filled in the record.
The second establishing method is named as a unit resource traversal method of a measurement and control channel, and the establishing process of the remote control routing table comprises the following steps: in each fixed time slot (default 15s, adjustable through configuration), checking the resource capacity information of the station by each unit resource of the measurement and control channel according to the sequence of descending and ascending; acquiring a duplex mark from an antenna, if the duplex is 'true', respectively checking the input-output connection relation of a downlink (horizontal port and a vertical port) in a downlink switch matrix, and respectively determining baseband unit IP addresses connected with the two ports; as long as the two ports are not suspended at the same time, the normal condition is considered. Otherwise, an exception handling process is found; the ID of the satellite is inquired by retrieving the ID number of the baseband unit resource managed by the baseband resource pool management module, so that the unit resource (antenna) of the measurement and control channel is confirmed to be aligned to which satellite; checking an uplink switch matrix, confirming a baseband unit resource ID number connected with an uplink antenna, and inquiring a baseband IP and a baseband unit resource network port number by retrieving the baseband unit resource ID number managed by a baseband resource pool management module if the uplink baseband resource exists; retrieve the key in the resource capability summary table: (measurement and control channel link number, duplex flag bit (True), satellite ID, baseband IP, baseband unit resource network port number); and judging whether the record exists in the resource capability summary table or not, and if not, adding a new record. If the ID number of the returned baseband unit resource is null; finding one path of available uplink baseband unit resource from the baseband resource pool, and connecting the uplink baseband unit resource to the uplink antenna by controlling an uplink switch matrix; according to the configuration attributes (task range, priority and the like) of the baseband unit resources, inquiring a baseband IP and a network port number of the baseband unit resources by retrieving the ID number of the baseband unit resources managed by the baseband resource pool management module; retrieve the key in the resource capability summary table: (measurement and control channel link number, duplex flag bit (True), satellite ID, baseband IP, baseband unit resource network port number); and judging whether the record exists in the resource capability summary table or not, and if not, adding a new record.
The maintenance process of the measurement and control routing table comprises the following steps: the local station monitoring module is responsible for maintaining and reporting a local measurement and control routing table, and if a certain link has a problem, the record can be automatically deleted in the table. Reporting the resource scheduling module; the routing table reports three driving modes of time, event and query: reporting in a fixed time slot, wherein in each fixed time slot (default is 1 minute, and the time slot is adjustable through configuration), a local station monitoring module reports to a resource scheduling module; the locally maintained routing table is reported after being changed; the local station monitoring module receives the route information refreshing request actively initiated by the resource scheduling module and reports the route information refreshing request; the resource scheduling module is responsible for maintaining a measurement and control routing summary table and ensuring that each satellite has three telemetering records and one remote control record under normal conditions; if any link has a problem, the record is automatically deleted in the table. After discovering that one record is missing, the resource scheduling module automatically initiates a reconfiguration command; after the reconfiguration is initiated, an available link can be automatically configured according to the pre-configured switching logic; the whole reconfiguration process requires a switching time of at most 8 minutes and no more than ten configuration links.
Resource management layerThe device is used for collecting and maintaining the measurement and control routing information reported by the equipment monitoring layer to generate a measurement and control routing summary table; and carrying out autonomous configuration on the ground measurement and control resources according to the measurement and control route configuration principle of each satellite.
In this embodiment, the resource management layer may include: the system comprises a unified station monitoring management module and a resource scheduling module. The system comprises a unified station monitoring management module, a ground monitoring station monitoring management module and a ground monitoring management module, wherein the unified station monitoring management module is used for intensively displaying the working state and parameters of equipment in each managed station and reserving the capacity of expanding the number of ground monitoring station stations and the equipment in the stations; the unified station monitoring management module has manual control capability of all devices in all the observation stations managed by the unified station monitoring management module. And the resource scheduling module is used for automatically planning the backup measurement and control links and the emergency measurement and control links of each satellite in all the measurement stations managed by the resource scheduling module according to the unit resource attribute setting, and has the capability of manually initiating and automatically initiating execution.
Preferably, the resource management layer may include the following functions: according to different operator authorities, the functions of adding, deleting, modifying and searching the satellite parameter database are realized; and receiving the 'measurement and control routing table of each local station' reported by the monitoring of all the local stations to form a 'measurement and control routing summary table' of the whole system. Wherein, the fields in the table include but are not limited to the following fields: satellite ID, fix point location, up frequency point/polarization (variable length multiple sets), down frequency point/polarization (variable length multiple sets).
Preferably, the minimum configuration principle of the measurement and control system of each satellite is as follows: two independent telemetering receiving links and one daily main instruction sending link.
The resource scheduling module is responsible for maintaining a measurement and control routing summary table, and whether the configuration states of all satellites meet the minimum configuration principle (two telemetering records and one remote control record/each satellite) is checked through the resource summary table in a fixed time slot (the default value is 1 minute, the parameter can be manually configured and adjusted). When the resource scheduling module finds that the ground measurement and control resource allocation of a certain satellite is lower than the minimum requirement, all satellite backup measurement and control links and emergency measurement and control links are automatically planned in all measurement stations managed by the resource scheduling module according to the unit resource attribute setting, a system configuration command is automatically (or manually) initiated according to the preset switching logic, the corresponding measurement stations are checked to return an execution result, and the resource scheduling module has operation result voice prompt (or alarm) information to ensure that an available link is allocated. The processing flow is as follows:
the method comprises the following steps: and the resource scheduling module operates for the first time and checks the working state of the existing main/standby machine in the system.
Step two: if the host is not found in the system, automatically setting the own working mode as the host, otherwise, setting the own working mode as a standby machine; the host machine distributes the IP address and the switching priority code of the host machine/the standby machine to the appointed file under the shared directory.
Step three: the host computer initiates a system state reporting command to all local station monitors, receives and summarizes the local measurement and control routing table reported by each local station monitor in a fixed waiting time slot (the default value is 2 minutes, the parameter can be manually configured and adjusted), and forms a total system measurement and control routing summary table.
Step four: and after the third step is finished, starting a timer, and checking whether the configuration states of all satellites are consistent with the configuration principle or not through a resource summary table in a fixed time slot (the default value is 1 minute, and the parameters can be manually configured and adjusted).
Step five: if any one satellite is found to be missing any one or more of the following resources: one path of uplink resources; and two paths of downlink resources.
Step six: and (3) extracting the automatically planned star master/backup measurement and control link and the emergency measurement and control link in the database, checking whether the actual state of the link to be switched is normal, if so, automatically executing a device switching command, if the state of the link to be used is abnormal, selecting the measurement and control channel to be selected one by one, and repeating the operation in the step (6). And when all the daily backup measurement and control links fail, starting the emergency measurement and control link to provide measurement and control support for the satellite. When the system executes equipment switching, voice prompt and log record are given.
When a monitoring port receives a local measurement and control routing table reported by local station monitoring, if new records exist in the current record or not, the new records or missing records are found if the information of the measurement station in the whole system measurement and control routing summary table is not null, then a certain measurement station link is prompted to change or switch by voice, and a system log is recorded; if the information of the measuring station in the 'total system measurement and control route summary table' is 'null', all records are added into the 'total system measurement and control route summary table', and meanwhile, a certain measuring station is prompted to access the system by voice and a system log is recorded.
Wherein, the flow of automatic switching is: the host computer actively detects whether the standby computer(s) exist at every second timing, confirms the existence of the standby computer by sending a detection message to the standby computer, and returns a detection response to the host computer. When the host fails, if the standby machine does not receive the detection message for more than three seconds, all the standby machines retrieve all the standby machine IP addresses and the switching priority codes from the shared directory appointment file, and the standby machine with the highest priority code is automatically switched to the host. The new host publishes its own IP address into the shared directory appointment file. Other standby machines also write their own IP addresses and switching priority codes into the file.
The manual switching process comprises the following steps: the process set as the host acquires the current host IP address from the shared directory appointment file, sends stop information to the current host, and after receiving the information that the stop is successfully fed back by the previous host, the new host issues the own IP address to the shared directory appointment file. The original host as a new standby machine writes the IP address and the switching priority code of the original host into the file. And the new host executes the third step of the processing flow to take over the management of the resources of the whole system.
Virtualization layerThe method is used for data interaction and communication among a device monitoring layer, a resource management layer, a data layer and a service layer, and provides a running environment for the device monitoring layer, the resource management layer, the data layer, the service layer and/or a client layer.
In this embodiment, the virtualization layer may include: a computing resource pool, a storage resource pool and a network resource pool; the unit resources accessed in the computing resource pool, the storage resource pool and the network resource pool conform to the plug and play standard so as to realize the access and exit use scenes of different resource devices of the ground measurement and control system.
Preferably, the deployment of each layer is realized by adopting a virtualization technology, so that the purposes of simplifying the number of hardware, optimizing the resource allocation of each software module during operation and simplifying the system maintenance cost can be achieved, and meanwhile, the management and redistribution of computing resources, network resources and storage resources can be realized, so that the resource utilization tends to be maximized:
first, partitions achieve isolation between systems, and by installing different systems on different partitions, interactions between applications that may occur when multiple applications are run on the same system can be avoided.
Secondly, the partitions make the system backup, change and upgrade simpler. In operation, it is often only necessary to copy the resource configuration data of the partition, and the disk data and memory data of the partition itself. For example, when the disk space is not enough, the storage space may be added to the partition through the resource management middle layer.
Finally, and most importantly, real-time dynamic allocation of computing resources is enabled by the partitions, i.e., at the same time, a partition with a large load can obtain more computing resources, and as the load decreases, the computing resources can be reclaimed, returned or reallocated to other partitions.
In addition, the partitioning technology can be combined with virtualized storage technology (the bottom layer can use SAN or iSCSI and other technologies), and the resource integration and the dynamic allocation on demand are realized to the maximum extent.
In short, the virtualization technology can abstract physical resources of a server into logical resources, so that one server becomes several or even hundreds of virtual servers isolated from each other, and hardware such as a CPU, a memory, a disk, and an I/O becomes a "resource pool" capable of being dynamically managed, thereby improving the utilization rate of resources, simplifying system management, and having adaptability to future service changes.
Data layerThe method is used for performing automatic addressing of satellite telemetering routing and automatic addressing of remote control routing by accessing a measurement and control routing general table maintained by a resource management layer.
In this embodiment, the data layer is deployed in a distributed deployment manner from satellite to satellite, the data layers of different satellites are deployed in different network segments isolated from each other, and the data layer of each satellite is connected in parallel to corresponding baseband equipment (or a satellite simulator) according to a measurement and control routing summary table maintained and configured by the resource management layer, and concurrently receives telemetry data from the different baseband equipment (or the satellite simulator), and transmits control instructions and other operations, thereby achieving the effects of satellite telemetry routing, automatic addressing of remote routing, and parallel operation of multi-satellite isolation.
Preferably, the core functions of the data layer may specifically include:
(1) the method has the function of sensing the route of the uplink and downlink measurement and control link.
The resource management layer is responsible for managing the measurement and control link resource pool and distributing uplink and downlink measurement and control routes used by each satellite, and the satellite cloud measurement and control platform acquires uplink and downlink measurement and control link information of the satellites through the data layer and is responsible for establishing and maintaining connection. When the satellite cloud measurement and control platform cannot acquire enough uplink and downlink measurement and control routing information, measurement and control link loss alarm information is sent to a user.
For the telemetry downlink: a) the method supports single-satellite multi-link connection, can set the expected link number of each satellite, and sends out warning information when the assigned link number is less than the expected number so as to remind the attendant to check and supplement the downlink resources of the satellite. b) When the distributed downlink can not be connected or the connection is interrupted, the total list of the current measurement and control route is automatically inquired, a new downlink route of the target satellite is selected for connection, and if the telemetry data of the target satellite cannot be received after the connection, warning information is actively sent to a user to prompt manual intervention of downlink measurement and control route switching.
For the remote control uplink: a) when the on-orbit operation, monitoring and alarming or task scheduling starting instruction uplink task is performed, the data layer obtains and connects the uplink routing information of the target satellite through the measurement and control routing summary table. b) When the uplink is interrupted or the communication fails due to uplink failure or uplink switching performed by the resource management layer in the process of instructing the uplink task execution, warning information should be actively sent to the user to prompt manual intervention for uplink measurement and control link switching. c) When the measurement and control platform occupies the satellite uplink to perform command uplink, uplink resource occupation information including satellite identification, satellite frequency point information, link information and the like is issued to the rapid orbit determination system.
(2) The remote control device has functions of receiving telemetering data and commanding uplink.
a) And the specified base band or the defense module can be connected to receive the telemetering original code data according to the perceived downlink routing information. Where the telemetry data received from the baseband is real satellite telemetry raw code data and the analog telemetry raw code data is received from the simulator.
b) The device can be simultaneously connected to a plurality of baseband devices (or satellite simulators) to support multi-path telemetry data reception of the same satellite.
c) The function of preferably storing the telemetering original code data is provided. For the accuracy of the data, when the telemetering data has two or more sources, the data quality analysis function is realized, a good quality part of data is obtained by selecting and combining according to rules, and is combined into a new file for long-term archiving and storage, and meanwhile, the originally received telemetering original code data is also stored separately.
d) When the telemetering loss, the synchronous word error or the satellite identification word error occurs in the telemetering reception of a certain downlink, an alarm is given, and the normal telemetering data reception is tried to be recovered through the measurement and control routing sensing function.
e) The system can receive and process instruction data transmitted by an on-orbit operation function, a monitoring and alarming function and a task scheduling function (the three functions are hierarchically deployed in a service layer and a client layer), and transmit the received instruction data to corresponding baseband or simulator equipment through uplink connection established by a measurement and control route sensing function; only one terminal is allowed to connect and send commands simultaneously for the same command target.
f) And identifying the instruction use scene, verifying whether the instruction is shielded or not, and preventing the dangerous instruction from being sent by mistake in daily operation.
g) Whether the telemetering instruction successfully ascends to the satellite can be checked through small ring comparison and large ring comparison, and the large ring comparison function and the small ring comparison function can be enabled or disabled. For the case of instruction failure or instruction conflict, the corresponding prompt message should be issued.
h) The telemetry data receiving and command uplink should simultaneously support two modes of encryption transmission and transparent transmission.
(3) The remote sensing data processing, distributing and storing functions are achieved.
a) Providing a telemetering parameter processing method configuration tool, and having a processing method for defining new telemetering parameters (including extended parameters) and editing the telemetering parameters; and the method supports the calibration processing of the telemetric data according to the requirements of the parameter processing method.
b) The system can process the telemetering original code received from the baseband in real time, and can also process the stored existing telemetering original code data after the fact according to the scheduling command.
c) When the stored existing telemetering original code data is subjected to post-processing, only one or more designated telemetering parameters can be processed, so that the processing speed is increased.
Therefore, in this embodiment, the data layers can implement automatic addressing of satellite telemetry and remote control routing, and each satellite data layer needs to receive two paths of different source telemetry signals simultaneously, complete frame synchronization, and solve telemetry source codes. And on the uplink remote control, the data submitted by the service layer is sent to the corresponding baseband equipment by using a transparent transmission mode. Specifically, the method comprises the following steps: the data layer remote control processing flow is as follows: receiving an instruction code transmitted by a service layer, converting the instruction code into an instruction binary code, and transmitting the instruction binary code to a corresponding baseband; and performing macrocyclic comparison according to the telemetering information, and feeding back a comparison result, wherein the macrocyclic comparison is passed and then an execution code is sent, or the execution code is directly sent when the macrocyclic is ignored. The data layer telemetry processing flow is as follows: and storing the local file of the received multi-channel telemetering data original codes according to the time and the channel identification, and simultaneously forwarding the optimized one-channel telemetering original code to a service layer.
Service layerFor providing basic services.
In this embodiment, the basic service may specifically include: telemetry service, remote control service, task scheduling, alarm service, health diagnosis service, and on-duty reporting service.
Preferably, the service layer is mainly used for deploying all module server programs in the satellite measurement and control center software group, establishing communication connection with the data layer, and realizing complete decoupling of the service layer and the ground measurement and control equipment by packaging and isolating the automatic sensing function of the measurement and control router of the data layer. The switching, changing and even network IP address changing of the ground physical measurement and control equipment are not affected by the service layer, because the service layer accesses virtual measurement and control channel data provided by the data layer, the service layer does not need to know the specific measurement station geographical position providing the target satellite remote measurement/control function, the radio frequency link equipment of the uplink/downlink antenna and baseband information, and the service layer contains the whole system dynamic configuration of the physical link. In order to realize the support of special scenes, two processing modes of transparent transmission and coding are provided on the remote control coding.
And the client layer is used for deploying client software of an end user, sensing logical uplink/downlink and a baseband and has a fast hot migration or dual active working mode.
In this embodiment, the client layer only needs to connect with the target satellite service layer through the target satellite ID, the target satellite service layer establishes communication connection with the data layer when the system runs, the data layer has an uplink/downlink measurement and control routing sensing function, and the real autonomous maintenance and automatic switching functions of uplink/downlink of the physical link and the baseband are implemented by the resource scheduling layer coordinating device monitoring layer.
When the measurement and control link is suddenly abnormal, the equipment monitoring layer firstly discovers and automatically switches the redundant backup equipment and reports new measurement and control route information to the resource scheduling layer, the resource scheduling layer collects a measurement and control route summary table and automatically initiates the automatic configuration of the ground measurement and control resources according to the measurement and control route configuration principle of each satellite, so that the remote measurement/remote control function has the rapid heat transfer capability of the measurement and control channel and the processing baseband equipment.
The satellite remote control uplink simultaneously has a daily main and emergency remote control double-active working mode when emergency treatment is carried out or when a certain satellite additionally occupies an emergency antenna.
On the basis of the above embodiments, a specific example is described below.
Taking the multi-satellite remote measurement/control parallel operation as an example, a local measurement and control station monitoring module in the equipment monitoring layer is responsible for acquiring and maintaining a measurement and control routing table of a corresponding ground measurement and control station and reporting the measurement and control routing table to the resource management layer. The resource management layer receives all reported measurement and control routing tables through a resource scheduling module to form a total system measurement and control routing table, and meanwhile, the ground measurement and control resources are autonomously maintained and configured according to a measurement and control routing configuration principle of each satellite; and the data layer performs automatic addressing of satellite telemetering routes and automatic addressing of remote control routes by accessing a measurement and control route general table maintained by the resource management layer.
Under normal conditions, the data layer telemetering processing module at least simultaneously addresses two paths of telemetering data from different measurement and control channels for each satellite to realize parallel double-active work, reports one path of optimized satellite telemetering data to the service layer by taking the satellite as a unit, the telemetering client layer display module is connected with the service layer telemetering processing service module, and the service layer telemetering processing module returns corresponding satellite telemetering data according to different satellite ID information submitted by the client layer to realize parallel operation of multi-satellite telemetering.
The method comprises the steps that instruction data sent by a client layer under normal conditions are received and processed by a service layer and then are transmitted to a data layer remote control processing module, the data layer establishes uplink connection through a measurement and control routing sensing function and sends the received instruction data to corresponding baseband or simulator equipment; and for the same instruction target, only one terminal is allowed to connect and send the instruction at the same time, and different instruction targets can be controlled in parallel.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Those skilled in the art will appreciate that the details of the invention not described in detail in this specification are well within the skill of those in the art.
Claims (10)
1. The utility model provides a satellite cloud measurement and control platform which characterized in that includes:
the equipment monitoring layer is used for local equipment program control; collecting and reporting measurement and control routing information of a local survey station;
the resource management layer is used for summarizing and maintaining the measurement and control routing information reported by the equipment monitoring layer and generating a measurement and control routing summary table; according to the measurement and control route configuration principle of each satellite, the ground measurement and control resources are autonomously configured;
the virtualization layer is used for data interaction and communication among the equipment monitoring layer, the resource management layer, the data layer and the service layer and providing a running environment for the equipment monitoring layer, the resource management layer, the data layer, the service layer and/or the client layer;
the data layer is used for carrying out automatic addressing of satellite remote-measuring routing and automatic addressing of remote-control routing by accessing a measurement and control routing general table maintained by the resource management layer;
the service layer is used for providing basic services; wherein, the basic service includes: the system comprises a remote measurement service, a remote control service, a task scheduling, an alarm service, a health diagnosis service and an on-duty report service;
and the client layer is used for deploying client software of an end user, sensing logical uplink/downlink and a baseband and has a fast hot migration or dual active working mode.
2. The satellite cloud measurement and control platform of claim 1, wherein the device monitoring layer comprises:
the local station monitoring system is used for monitoring and recording the working state of ground measurement and control equipment and in-station public facilities, setting operation parameters and giving an alarm on the fault of the ground equipment; monitoring the running states of all equipment in the local station in real time; managing the measurement and control channel resource pool and the baseband resource pool to enable unit resources of the measurement and control channel resource pool and the baseband resource pool to have plug and play capability;
the measurement and control channel resource pool and the baseband resource pool have an attribute setting function and are used for recording technical parameter indexes of equipment, planning a resource equipment path in resource scheduling and carrying out related processing on ground resource use, so that the purpose of monitoring equipment in a local station is achieved, and the equipment in the local station is monitored and managed by matching with a resource management layer.
3. The satellite cloud measurement and control platform of claim 2,
the unit resource of the measurement and control channel resource pool is a measurement and control link composed of an antenna, a low noise amplifier, a down converter, an up converter and a power amplifier;
the unit resources in the baseband resource pool are independent baseband channels with remote control or remote measurement capability and are divided into remote measurement unit resources and remote control unit resources;
the unit resources of the measurement and control channel resource pool are connected with the remote measurement unit resources of the baseband resource pool through a downlink switch matrix to form a downlink measurement and control route;
the unit resources of the measurement and control channel resource pool are connected with the remote control unit resources of the baseband resource pool through an uplink switch matrix to form an uplink measurement and control route;
the downlink measurement and control routes and the uplink measurement and control routes are collectively called as measurement and control routes, each local station monitoring system knows the resource allocation state of a station by maintaining one local measurement and control route table and reports the local measurement and control route table to a resource scheduling module of a main station, the main station resource scheduling module knows the resource allocation state of the whole station network measurement and control system by summarizing the measurement and control route tables of each station, and the measurement and control resource allocation task is actively initiated when any measurement and control link is found to be missing according to the measurement and control link allocation principle of each satellite.
4. The satellite cloud measurement and control platform according to claim 1, wherein the equipment monitoring layer collects and reports measurement and control routing information of the local measurement station, and the measurement and control routing information comprises:
when a certain link is abnormal, automatically deleting the information of the abnormal certain link in the measurement and control routing table; reporting the resource management layer at the same time;
the reporting of the measurement and control routing information of the local measurement station comprises three driving modes of time, event and inquiry: reporting in a fixed time slot, and reporting in each fixed time slot; reporting after the routing table maintained locally is changed; and reporting after receiving the route information refreshing request.
5. The satellite cloud measurement and control platform of claim 1, wherein the measurement and control routing information comprises: the system comprises a measurement and control link number, a remote control or remote measurement zone bit, a mode zone bit, satellite ID information, a baseband IP, a baseband port number, instruction ID information and a link uplink on-off state zone bit.
6. The satellite cloud measurement and control platform of claim 1, wherein the resource management layer comprises: the system comprises a unified station monitoring management module and a resource scheduling module;
the unified station monitoring management module is used for displaying the working state and parameters of the managed equipment in each station in a centralized manner, and reserving the quantity of the expanded ground measurement and control stations and the capacity of the equipment in the stations; the monitoring management module of the unified station has manual control capability of all equipment in all the survey stations managed by the monitoring management module of the unified station;
the resource scheduling module is used for automatically planning the backup measurement and control links and the emergency measurement and control links of each satellite in all the measurement stations managed by the resource scheduling module according to the unit resource attribute setting, and has the capability of manually initiating and automatically initiating execution;
the minimum configuration principle of the measurement and control system of each satellite is as follows: two independent telemetering receiving links and one daily main instruction sending link.
7. The satellite cloud measurement and control platform according to claim 6, wherein the resource scheduling of the resource management layer comprises the following functions: according to different operator authorities, the functions of adding, deleting, modifying and searching the satellite parameter database are realized.
8. The satellite cloud measurement and control platform of claim 1, wherein the virtualization layer comprises: a computing resource pool, a storage resource pool and a network resource pool; the unit resources accessed in the computing resource pool, the storage resource pool and the network resource pool conform to the plug and play standard so as to realize the access and exit use scenes of different resource devices of the ground measurement and control system.
9. The satellite cloud measurement and control platform of claim 1, wherein the data layer is configured to: receiving an instruction code transmitted by a service layer, converting the instruction code into an instruction binary code, and transmitting the instruction binary code to a corresponding baseband; performing macrocyclic comparison according to the telemetering information, and feeding back a comparison result, wherein the macrocyclic comparison is passed and then an execution code is sent, or the execution code is directly sent when the macrocyclic is ignored; and storing the local file of the received multi-channel telemetering data original codes according to the time and the channel identification, and simultaneously forwarding the optimized one-channel telemetering original code to a service layer.
10. The satellite cloud measurement and control platform according to claim 1, wherein the service layer has two processing modes of transparent transmission and coding on remote control coding so as to support a special scene.
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