CN111698018B - Ground station network autonomous maintenance and 'fragmentation' regional station network autonomous operation system - Google Patents
Ground station network autonomous maintenance and 'fragmentation' regional station network autonomous operation system Download PDFInfo
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Abstract
The system for the autonomous maintenance of the ground station network and the autonomous operation of the fragmented regional station network comprises an equipment monitoring layer and a resource management layer. The equipment monitoring layer is composed of N local measurement and control station monitoring systems, and each local measurement and control station monitoring system 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 summary table; automatically planning each satellite main/backup measurement and control link and each emergency measurement and control link, and realizing the autonomous maintenance of the ground station network when a certain link has a problem; when the network of the ground measurement and control station is blocked by a divisible network, a plurality of independent regional station network autonomous operation systems are formed. The invention can realize autonomous maintenance, improve the system maintenance reliability and shorten the emergency response time; when the network is blocked by the segmentation network, each regional station network operates autonomously, and can continuously execute the measurement and control task to the maximum capacity without human intervention.
Description
Technical Field
The invention relates to a regional station network autonomous operation system with ground station network autonomous maintenance and fragmentation, and belongs to the field of on-orbit management of space spacecrafts.
Background
The satellite ground measurement and control system is different in construction age, the satellite belongs to different platforms, the association degree between the systems is low, hardware equipment is mostly in an equipment binding state, and flexible calling is lacked. Although the quantity of equipment of the ground station network is large, each piece of equipment is bound in a certain specific link, once the link switching occurs, ground measurement and control personnel are required to know the connection relation of the ground equipment, and the system is familiar with a specific station equipment operation configuration method, so that the system maintenance reliability is low, the emergency disposal response time is long, and the automation capability is insufficient. Meanwhile, when the network of the ground measurement and control stations is blocked by a divisible network, a plurality of independent regional station networks are formed, and the regional station network disconnected from the main station usually loses the measurement and control task execution capacity under the condition of no human intervention.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the ground station network autonomous maintenance and fragmented regional station network autonomous operation system is provided.
The technical solution of the invention is as follows:
the system comprises an equipment monitoring layer and a resource management layer, wherein the ground station network autonomous maintenance and 'fragmentation' regional station network autonomous operation system comprises the equipment monitoring layer and the resource management layer;
equipment monitoring layer: the system comprises N local measurement and control station monitoring systems, wherein N is the number of the ground measurement and control stations, each local measurement and control station monitoring system corresponds to one ground measurement and control station and is used for setting operation parameters corresponding to the ground measurement and control stations, monitoring and recording the operation states of all equipment in the ground measurement and control stations and realizing alarm and master/slave switching when ground equipment fails; the system has the management functions of a measurement and control channel resource pool and a baseband resource pool, and the unit resources of the resource pool have plug-and-play capability by providing the existing equipment, the current mainstream and the latest equipment driver library; meanwhile, the system is responsible for collecting and maintaining a measurement and control routing table of the corresponding ground measurement and control station and reporting the measurement and control routing table to a resource management layer;
and (3) resource management layer: the system comprises a unified station monitoring management module and a resource scheduling module;
unified station control management module: the system is responsible for intensively displaying the working states and parameters of the equipment in each managed ground measurement and control station, and reserving the capacity of expanding the number of the ground measurement and control stations and the equipment in the stations; the unified station monitoring management module has the manual control capability of all equipment in all ground measurement and control stations managed by the unified station monitoring management module;
a resource scheduling module: receiving the measurement and control routing tables of the ground measurement and control stations reported by all the monitoring systems of the local measurement and control stations to form a total system measurement and control routing summary table; in each managed ground measurement and control station, according to the attribute information of unit resources in each resource pool and the configuration principle of each satellite measurement and control system, automatically planning each satellite main/backup measurement and control link and an emergency measurement and control link, and realizing the automatic maintenance of a ground station network in an automatic or manual mode when a certain link has a problem; when the network blocking of the divided network occurs between the networks of the ground measurement and control stations, a plurality of independent autonomous operation systems of the regional networks are formed in each regional network through a main election/standby inhibition strategy;
the resource scheduling modules are M in number, each resource scheduling module is arranged on one virtual machine, the M resource scheduling modules correspond to the M ground measurement and control stations one by one, the virtual machine where one resource scheduling module is located serves as a host machine, the rest are standby machines, and M is smaller than or equal to N.
The local monitoring system for the measurement and control station maintains the measurement and control routing table of the corresponding ground measurement and control station in the following way:
if a certain ground equipment has a fault alarm, the equipment is switched to the standby equipment, the current measurement and control route record of the ground measurement and control station where the equipment is located is deleted, and the measurement and control route table of the ground measurement and control station after the equipment is switched is continuously collected subsequently.
The measurement and control channel resource pool consists of a plurality of measurement and control channel unit resources, and the measurement and control channel unit resources consist of a single antenna and radio frequency equipment above 70MHz matched with the single antenna;
the baseband resource pool is composed of a plurality of baseband unit resources, and the baseband unit resources refer to channels with independent remote control or remote measuring capability in each baseband device.
The measurement and control system configuration principle of each satellite is as follows:
the device is provided with two independent telemetering receiving channels;
the method is provided with a main instruction sending channel.
And the resource scheduling module is responsible for maintaining a system-wide measurement and control route summary table and ensuring that each satellite has two telemetering records and one remote control record under normal conditions.
The principle of planning the main/backup emergency measurement and control link of each satellite is as follows:
10% -20% of unit resources of the local measurement and control channel are reserved in each ground measurement and control station to serve as an emergency measurement and control link, and the reserved resources have full-moving capacity.
The resource scheduling module finds that a certain link has a problem by the following modes:
i, deleting corresponding routing records in a reported ground measurement and control station measurement and control routing table by a local measurement and control station monitoring system corresponding to the link with the problem;
II, in a fixed time slot, a resource scheduling module initiates a route information refreshing request to each local monitoring system of the measurement and control station, whether the configuration states of all satellites are consistent with the configuration principle or not is checked according to a measurement and control route summary table obtained after refreshing, and if not, a problem occurs in a corresponding link;
when a certain link has a problem, the resource scheduling module automatically initiates a reconfiguration command, automatically allocates an available link according to a pre-allocated switching logic, and switches the link with the problem to the available link to realize autonomous maintenance; if the time for switching the problematic link to the available link exceeds 8 minutes or the time for attempting to switch the path exceeds ten, the autonomous maintenance is stopped, an alarm is given and manual intervention is performed.
The method for realizing the autonomous maintenance of the ground station network by the resource scheduling module comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the monitoring stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local monitoring stations in a fixed waiting time slot, and forms a total system measurement and control routing summary table;
step four: after the third step is finished, starting a timer, initiating a route information refreshing request to each local monitoring system of the measurement and control station in a fixed time slot, and checking whether the configuration states of all satellites conform to the configuration principle of the measurement and control system of each satellite according to a measurement and control route summary table obtained after refreshing;
step five: if any satellite is found to lack any of the following resources:
one path of uplink resources;
one path of downlink resources;
two paths of downlink resources;
entering a sixth step;
step six: extracting the star main/backup measurement and control link and the emergency measurement and control link which are automatically planned 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, repeating the operation of the sixth step until the actual state of the link to be switched is normal, and automatically executing the device switching command; when all the daily backup measurement and control links fail, starting an emergency measurement and control link to provide measurement and control support for the satellite, and giving voice prompt and log record when a system executes equipment switching;
when the monitoring port receives a measurement and control routing table reported by a monitoring system of a local measurement and control station, if the information of the ground measurement and control station in a total system measurement and control routing summary table is not null, comparing the new record with the current record one by one, and if the new record or the missing record is found, prompting a certain measurement station link to change or switch by voice and recording a system log; if the information of the measuring station in the total system measuring and controlling route summary table is 'null', all records are added into the total system measuring and controlling route summary table, and simultaneously, a certain measuring station is prompted to access the system by voice and a system log is recorded.
When the network of the ground measurement and control station is blocked by a divisible network, a resource scheduling module forms a plurality of independent autonomous operation systems of the regional station network by a main election/standby inhibition strategy in each regional station network, and the realization method comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the monitoring stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local monitoring stations in a fixed waiting time slot, and forms a total system measurement and control routing summary table;
step four: when the network of the ground measurement and control station is blocked by a divisible network, the switching of the main machine and the standby machine is completed in each regional station network through a main election/standby inhibition strategy, and a plurality of independent regional station network autonomous operation systems are formed.
The main and standby machines are switched by adopting an automatic switching mode, and the flow of the automatic switching mode is as follows: the host computer actively detects whether a plurality of standby computers exist at fixed time every second, confirms the existence of the standby computers by sending detection messages to the standby computers, and returns detection responses to the host computer; when the host computer is in failure, if the standby computer does not receive the detection message for more than three seconds, the standby computer retrieves all standby computer IP addresses and switching priority codes from the shared directory appointment file, the standby computer with the highest priority code is automatically switched to the host computer, the new host computer issues the IP addresses of the new host computer into the shared directory appointment file, and other standby computers write the IP addresses of the new host computer and the switching priority codes into the file;
the main machine and the standby machine are switched by adopting a manual switching mode, and the flow of the manual switching mode is as follows: and the process set as the host acquires the IP address of the current host from the shared directory appointment file, sends stop information to the current host, and after receiving the information that the current host feeds back the stop success, the new host issues the IP address of the new host into the shared directory appointment file, the original host is used as a new standby machine to write the IP address and the switching priority code of the new host into the file, and the new host executes the third step to take over the management of the resources of the whole system.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention realizes the real-time acquisition of the working state of the station network measurement and control resources by collecting the measurement and control routing table by each ground measurement and control station, automatically plans each satellite main/backup measurement and control link and the emergency measurement and control link according to the unit resource attribute information in each resource pool and the configuration principle of each satellite measurement and control system, and reconfigures the ground station network in an automatic or manual mode when a certain link has problems, thereby realizing the autonomous maintenance, greatly reducing the technical requirements of ground equipment watchmen, releasing the ground equipment operators from the fussy equipment operation and configuration, improving the reliability of the system maintenance and shortening the emergency response time.
(2) The invention deploys a plurality of sets of resource scheduling modules, and provides a main machine and standby machine switching scheme for the resource scheduling modules when the network of the ground measurement and control station is blocked by a divisible network, so as to form a plurality of independent regional station networks.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
As shown in fig. 1, the system for autonomously maintaining a ground station network and autonomously operating a "fragmented" area station network of the present invention includes an equipment monitoring layer and a resource management layer.
Equipment monitoring layer: the system comprises N local measurement and control station monitoring systems, wherein N is the number of the ground measurement and control stations, each local measurement and control station monitoring system corresponds to one ground measurement and control station and is used for setting operation parameters corresponding to the ground measurement and control stations, monitoring and recording the operation states of all equipment in the ground measurement and control stations and realizing alarm and master/slave switching when ground equipment fails; the system has the management functions of a measurement and control channel resource pool and a baseband resource pool, and the unit resources of the resource pool have plug-and-play capability by providing the existing equipment, the current mainstream and the latest equipment driver library; and the system is also responsible for collecting and maintaining the measurement and control routing table of the corresponding ground measurement and control station and reporting the measurement and control routing table to a resource management layer.
The measurement and control channel resource pool is composed of a plurality of measurement and control channel unit resources, the measurement and control channel unit resources are composed of a single antenna and radio frequency equipment above 70MHz matched with the single antenna, and the measurement and control channel unit resources comprise: up-conversion (main/standby), power amplifier (main/standby), antenna, low noise amplifier (main/standby) and down-conversion (main/standby). The baseband resource pool is composed of a plurality of baseband unit resources, and the baseband unit resources refer to channels with independent remote control or remote measuring capability in each baseband device. For example: and if one baseband device is provided with two remote control uplink channels and four remote control downlink channels, six unit resources exist in the baseband, wherein two unit resource attributes contain remote control identifiers, and the other four unit resource attributes contain remote control identifiers. Therefore, simultaneous telemetering/remote control multiplexing of one baseband to multiple stars is realized.
The plug and play and attribute management of unit resources are realized through the resource pool management module of the measurement and control channel. The base band resource pool management module is used for managing unit resources with uplink capability, and at least information such as resource ID numbers, base band IP addresses, unit resource physical port numbers, network port numbers and the like is stored in the base band unit resource attribute table. And for all unit resources locked in the downlink telemetry state, acquiring information such as satellite ID numbers, baseband resource ID numbers, baseband IP addresses, unit resource physical port numbers, network port numbers and the like in frame synchronization, and reporting when the information is to be inquired. And deleting the record related to the unit resource in the measurement and control routing table and actively reporting the record for all the unit resources with unlocked downlink telemetry states.
The measurement and control channel resource pool management module is connected with the baseband resource pool management module through the intermediate frequency switch matrix management module, and the intermediate frequency switch matrix management module is responsible for managing the input and output corresponding relation of the uplink/downlink 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).
The device driver library includes, but is not limited to, the following driver libraries: a baseband device driver library; an antenna radio frequency device driver library; other auxiliary device driver libraries. For example: time-of-day devices, switch matrices, waveguide inflators, and the like.
The local monitoring system for the measurement and control station maintains the measurement and control routing table of the corresponding ground measurement and control station in the following way:
if a certain ground equipment has a fault alarm, the equipment is switched to the standby equipment, the relevant measurement and control route record of the ground measurement and control station where the equipment is located is deleted, and the measurement and control route table of the ground measurement and control station after the equipment is switched is continuously collected subsequently.
And (3) resource management layer: the system comprises a unified station monitoring management module and a resource scheduling module.
Unified station control management module: the system is responsible for intensively displaying the working states and parameters of the equipment in each managed ground measurement and control station, and reserving the capacity of expanding the number of the ground measurement and control stations and the equipment in the stations; the unified station monitoring management module has manual control capability of all equipment in all ground measurement and control stations managed by the unified station monitoring management module.
A resource scheduling module: receiving the measurement and control routing tables of the ground measurement and control stations reported by all the monitoring systems of the local measurement and control stations to form a total system measurement and control routing summary table; in each managed ground measurement and control station, according to the attribute information of unit resources in each resource pool (measurement and control channel resource pool and baseband resource pool) and the configuration principle of each satellite measurement and control system, automatically planning each satellite main/backup measurement and control link and an emergency measurement and control link, and realizing the automatic maintenance of a ground station network in an automatic or manual mode when a certain link has a problem; when the network blocking of the divided network occurs between the networks of the ground measurement and control stations, a plurality of independent autonomous operation systems of the regional networks are formed in each regional network through a main election/standby inhibition strategy;
the resource scheduling modules are M in number, each resource scheduling module is arranged on one virtual machine, the M resource scheduling modules correspond to the M ground measurement and control stations one by one, the virtual machine where one resource scheduling module is located serves as a host machine, the rest are standby machines, and M is smaller than or equal to N.
The resource scheduling module mainly comprises the following functions:
1. according to different operator authorities, the functions of adding, deleting, modifying and searching the satellite parameter database can be realized; the satellite parameter database includes the following fields, but is not limited to:
2. and receiving the measurement and control routing tables reported by all the local measurement and control station monitoring systems to form a total system measurement and control routing summary table.
According to the configuration principle of the measurement and control system of each satellite: two independent telemetering receiving channels; and one path of main instruction sending channel.
The principle of planning the main/backup emergency measurement and control link of each satellite is as follows:
10% -20% of unit resources of the local measurement and control channel are reserved in each ground measurement and control station to serve as an emergency measurement and control link, and the reserved resources have full-moving capacity.
3. And the resource scheduling module is responsible for maintaining a measurement and control routing summary table and ensuring that each satellite has two telemetering records and one remote control record under normal conditions.
The resource scheduling module finds that a certain link has a problem by the following modes:
i, deleting corresponding routing records in a reported ground measurement and control station measurement and control routing table by a local measurement and control station monitoring system corresponding to a link with a problem;
II, in a fixed time slot (the default value is 1 minute, the parameter can be manually configured and adjusted), the resource scheduling module initiates a route information refreshing request to each local monitoring system of the measurement and control station, whether the configuration states of all satellites are consistent with the configuration principle of each satellite measurement and control system is checked according to a measurement and control route summary table obtained after refreshing, and if the configuration states of all satellites are not consistent with the configuration principle of each satellite measurement and control system, the problem of a corresponding link is indicated;
when a certain link has a problem, the resource scheduling module automatically initiates a reconfiguration command, automatically allocates an available link according to a pre-allocated switching logic, and switches the link with the problem to the available link to realize autonomous maintenance; if the time for switching the problematic link to the available link exceeds 8 minutes or the time for attempting to switch the path exceeds ten, the autonomous maintenance is stopped, an alarm is given and manual intervention is performed.
4. Automatically planning a main/backup measurement and control link and an emergency measurement and control link of each satellite according to unit resource attribute information and a configuration principle of a measurement and control system of each satellite in each resource pool;
the measurement and control system configuration principle of each satellite is as follows:
the device is provided with two independent telemetering receiving channels;
the method is provided with a main instruction sending channel.
5. And the running result voice prompt (or alarm) information is provided.
The method for realizing the autonomous maintenance of the ground station network by the resource scheduling module comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the measurement and control stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local measurement and control stations 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: after the third step is finished, starting a timer, initiating a route information refreshing request to each local monitoring system of the measurement and control station in a fixed time slot (the default value is 1 minute, the parameter can be manually configured and adjusted), and checking whether the configuration state of all satellites conforms to the configuration principle of each satellite measurement and control system or not according to a measurement and control route summary table obtained after refreshing;
step five: if any satellite is found to lack any of the following resources:
one path of uplink resources;
one path of downlink resources;
two paths of downlink resources;
entering a sixth step;
step six: extracting the star main/backup measurement and control link and the emergency measurement and control link which are automatically planned 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, repeating the operation of the sixth step until the actual state of the link to be switched is normal, and automatically executing the device switching command; when all the daily backup measurement and control links fail, starting an emergency measurement and control link to provide measurement and control support for the satellite, and giving voice prompt and log record when a system executes equipment switching;
when the monitoring port receives a measurement and control routing table reported by a monitoring system of a local measurement and control station, if the information of the ground measurement and control station in a total system measurement and control routing summary table is not null, comparing the new record with the current record one by one, and if the new record or the missing record is found, prompting a certain measurement station link to change or switch by voice and recording a system log; if the information of the measuring station in the total system measuring and controlling route summary table is 'null', all records are added into the total system measuring and controlling route summary table, and simultaneously, a certain measuring station is prompted to access the system by voice and a system log is recorded.
When the network of the ground measurement and control station is blocked by a divisible network, a resource scheduling module forms a plurality of independent autonomous operation systems of the regional station network by a main election/standby inhibition strategy in each regional station network, and the realization method comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the measurement and control stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local measurement and control stations 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: when the network of the ground measurement and control station is blocked by a divisible network, the switching of the main machine and the standby machine is completed in each regional station network through a main election/standby inhibition strategy, and a plurality of independent regional station network autonomous operation systems are formed.
The main and standby machines are switched by adopting an automatic switching mode or a manual switching mode.
The flow of the automatic switching mode is as follows: the host computer actively detects whether a plurality of standby computers exist at fixed time every second, confirms the existence of the standby computers by sending detection messages to the standby computers, and returns detection responses to the host computer; when the host fails, if the standby machine does not receive the detection message for more than three seconds, the standby machine retrieves all the standby machine IP addresses and the switching priority codes from the shared directory appointment file, the standby machine with the highest priority code is automatically switched to the host, the new host issues the IP address of the new host into the shared directory appointment file, and other standby machines write the IP address of the new host and the switching priority codes into the file.
The manual switching mode flow is as follows: and the process set as the host acquires the IP address of the current host from the shared directory appointment file, sends stop information to the current host, and after receiving the information that the current host feeds back the stop success, the new host issues the IP address of the new host into the shared directory appointment file, the original host is used as a new standby machine to write the IP address and the switching priority code of the new host into the file, and the new host executes the third step to take over the management of the resources of the whole system.
For example, the following steps are carried out: the system adopts a multi-center distributed network structure. The local measurement and control station monitoring system is deployed at A, B, C, D, E, F with six measurement stations. The resource scheduling modules are distributed in A, B and E stations, and the network between the stations adopts full interconnection and intercommunication configuration. Under normal conditions, the A testing station operates as a resource scheduling master station, namely a virtual machine where the A testing station resource scheduling module is located serves as a host, and virtual machines where the B testing station resource scheduling module and the E testing station resource scheduling module are located are in a hot standby working state and serve as standby machines.
When the station A is off-line abnormally, the station B and the station E will select one of the station B to be the main station according to the priority level and continue the follow-up management. When any one ground measurement and control station (including a resource scheduling module) is offline, the resource scheduling module can automatically schedule the idle and emergency backup resources of the rest ground measurement and control stations to take over the measurement and control tasks born by the offline station, and if the available resources are insufficient, the derating use strategy of multi-satellite time-sharing multiplexing can be adopted, so that the whole system task is not influenced under the condition that any one center or measurement station is lost in the whole network.
The invention realizes the real-time acquisition of the working state of the station network measurement and control resources by collecting the measurement and control routing table by each ground measurement and control station, automatically plans each satellite main/backup measurement and control link and the emergency measurement and control link according to the unit resource attribute information in each resource pool and the configuration principle of each satellite measurement and control system, and reconfigures the ground station network in an automatic or manual mode when a certain link has problems, thereby realizing the autonomous maintenance, greatly reducing the technical requirements of ground equipment watchmen, releasing the ground equipment operators from the fussy equipment operation and configuration, improving the reliability of the system maintenance and shortening the emergency response time.
The invention is not described in detail and is within the knowledge of a person skilled in the art.
Claims (6)
1. The system for the autonomous maintenance and the autonomous operation of the fragmented regional station network of the ground station network is characterized in that: the system comprises an equipment monitoring layer and a resource management layer;
equipment monitoring layer: the system comprises N local measurement and control station monitoring systems, wherein N is the number of the ground measurement and control stations, each local measurement and control station monitoring system corresponds to one ground measurement and control station and is used for setting operation parameters corresponding to the ground measurement and control stations, monitoring and recording the operation states of all equipment in the ground measurement and control stations and realizing alarm and master/slave switching when ground equipment fails; the system has the management functions of a measurement and control channel resource pool and a baseband resource pool, and the unit resources of the resource pool have plug-and-play capability by providing the existing equipment, the current mainstream and the latest equipment driver library; meanwhile, the system is responsible for collecting and maintaining a measurement and control routing table of the corresponding ground measurement and control station and reporting the measurement and control routing table to a resource management layer;
and (3) resource management layer: the system comprises a unified station monitoring management module and a resource scheduling module;
unified station control management module: the system is responsible for intensively displaying the working states and parameters of the equipment in each managed ground measurement and control station, and reserving the capacity of expanding the number of the ground measurement and control stations and the equipment in the stations; the unified station monitoring management module has the manual control capability of all equipment in all ground measurement and control stations managed by the unified station monitoring management module;
a resource scheduling module: receiving the measurement and control routing tables of the ground measurement and control stations reported by all the monitoring systems of the local measurement and control stations to form a total system measurement and control routing summary table; in each managed ground measurement and control station, according to the attribute information of unit resources in each resource pool and the configuration principle of each satellite measurement and control system, automatically planning each satellite main/backup measurement and control link and an emergency measurement and control link, and realizing the automatic maintenance of a ground station network in an automatic or manual mode when a certain link has a problem; when the network blocking of the divided network occurs between the networks of the ground measurement and control stations, a plurality of independent autonomous operation systems of the regional networks are formed in each regional network through a main election/standby inhibition strategy;
the resource scheduling modules are M in number, each resource scheduling module is arranged on one virtual machine, the M resource scheduling modules correspond to the M ground measurement and control stations one by one, the virtual machine where one resource scheduling module is located serves as a host machine, the rest are standby machines, and M is less than or equal to N;
the local monitoring system for the measurement and control station maintains the measurement and control routing table of the corresponding ground measurement and control station in the following way:
if a certain ground equipment has a fault alarm, switching the equipment to standby equipment, deleting the current measurement and control route record of the ground measurement and control station where the equipment is located, and subsequently continuously acquiring a measurement and control route table of the ground measurement and control station after the equipment is switched;
the measurement and control channel resource pool consists of a plurality of measurement and control channel unit resources, and the measurement and control channel unit resources consist of a single antenna and radio frequency equipment above 70MHz matched with the single antenna;
the baseband resource pool is composed of a plurality of baseband unit resources, and the baseband unit resources refer to channels with independent remote control or remote measuring capability in each baseband device;
the measurement and control system configuration principle of each satellite is as follows:
the device is provided with two independent telemetering receiving channels;
the method comprises the steps of providing a main instruction sending channel;
when the network of the ground measurement and control station is blocked by a divisible network, a resource scheduling module forms a plurality of independent autonomous operation systems of the regional station network by a main election/standby inhibition strategy in each regional station network, and the realization method comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the monitoring stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local monitoring stations in a fixed waiting time slot, and forms a total system measurement and control routing summary table;
s1, if the communication of each ground measurement and control station is normal in the default receiving waiting time slot, but the data is not received completely, the voice prompt increases the initialization waiting time or increases the network bandwidth between the stations, and records the system log;
s2, if any ground measurement and control station does not respond, the voice prompt is disconnected with the ground measurement and control station, and a system log is recorded;
s3, when receiving the measurement and control route list reported by the local measurement and control station monitoring system, comparing the new record item by item if the ground measurement and control station information in the total system measurement and control route summary list is not null, finding new or missing, then voice prompting the link of a certain ground measurement and control station to switch, and recording the system log; if the information of the ground measurement and control 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 simultaneously, a certain ground measurement and control station is prompted to access the system by voice and a system log is recorded;
s4, enabling and disabling all voice prompts through configuration respectively, wherein the prompt tone can be repeatedly broadcasted without manual confirmation;
s5 when the content of the total system measurement and control route summary table is changed, the host computer is responsible for releasing the content into the appointed file under the shared directory for the standby computer and the remote measurement processing server to retrieve;
step four: when the network of the ground measurement and control station is blocked by a divisible network, switching between the main machine and the standby machine is completed in each regional station network through a main election/standby inhibition strategy to form a plurality of independent regional station network autonomous operation systems;
the main machine and the standby machine are switched by adopting a manual switching mode, and the flow of the manual switching mode is as follows: and the process set as the host acquires the IP address of the current host from the shared directory appointment file, sends stop information to the current host, and after receiving the information that the current host feeds back the stop success, the new host issues the IP address of the new host into the shared directory appointment file, the original host is used as a new standby machine to write the IP address and the switching priority code of the new host into the file, and the new host executes the third step to take over the management of the resources of the whole system.
2. The system of claim 1, wherein the system is configured to perform autonomous maintenance on a network of ground stations and autonomous operation on a network of "fragmented" regional stations, and further configured to: and the resource scheduling module is responsible for maintaining a system-wide measurement and control route summary table and ensuring that each satellite has two telemetering records and one remote control record under normal conditions.
3. The system of claim 1, wherein the system is configured to perform autonomous maintenance on a network of ground stations and autonomous operation on a network of "fragmented" regional stations, and further configured to: the principle of planning the main/backup emergency measurement and control link of each satellite is as follows:
10% -20% of unit resources of the local measurement and control channel are reserved in each ground measurement and control station to serve as an emergency measurement and control link, and the reserved resources have full-moving capacity.
4. The system of claim 1, wherein the system is configured to perform autonomous maintenance on a network of ground stations and autonomous operation on a network of "fragmented" regional stations, and further configured to: the resource scheduling module finds that a certain link has a problem by the following modes:
i, deleting corresponding routing records in a reported ground measurement and control station measurement and control routing table by a local measurement and control station monitoring system corresponding to the link with the problem;
II, in a fixed time slot, a resource scheduling module initiates a route information refreshing request to each local monitoring system of the measurement and control station, whether the configuration states of all satellites are consistent with the configuration principle or not is checked according to a measurement and control route summary table obtained after refreshing, and if not, a problem occurs in a corresponding link;
when a certain link has a problem, the resource scheduling module automatically initiates a reconfiguration command, automatically allocates an available link according to a pre-allocated switching logic, and switches the link with the problem to the available link to realize autonomous maintenance; if the time for switching the problematic link to the available link exceeds 8 minutes or the time for attempting to switch the path exceeds ten, the autonomous maintenance is stopped, an alarm is given and manual intervention is performed.
5. The system of claim 1, wherein the system is configured to perform autonomous maintenance on a network of ground stations and autonomous operation on a network of "fragmented" regional stations, and further configured to: the method for realizing the autonomous maintenance of the ground station network by the resource scheduling module comprises the following steps:
the method comprises the following steps: when each resource scheduling module operates for the first time, checking the working state of the existing main/standby machine in the system;
step two: if the host is not found in the system, the resource scheduling module automatically sets the own working mode as the host, otherwise, the resource scheduling module sets the host as a standby machine; the host machine issues the IP address of the host machine and the IP address of the standby machine and the switching priority code of the standby machine into an appointed file under a shared directory;
step three: the host computer initiates a system state reporting command to all local monitoring systems of the monitoring stations, receives and summarizes the measurement and control routing tables reported by the monitoring systems of the local monitoring stations in a fixed waiting time slot, and forms a total system measurement and control routing summary table;
3.1 if the communication of each ground measurement and control station is normal in the default receiving waiting time slot but the data is not received completely, increasing the initialization waiting time or increasing the network bandwidth between the stations by voice prompt and recording a system log;
3.2 if any ground measurement and control station does not respond, the voice prompt is disconnected with the ground measurement and control station, and a system log is recorded;
3.3 when receiving the measurement and control routing table reported by the monitoring system of the local measurement and control station, comparing the new records one by one if the ground measurement and control station information in the total system measurement and control routing summary table is not null, and prompting the link of a certain ground measurement and control station to be switched by voice and recording the system log if the new record exists in the current record; if the information of the ground measurement and control 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 simultaneously, a certain ground measurement and control station is prompted to access the system by voice and a system log is recorded;
3.4 all voice prompts can be enabled and disabled respectively through configuration, and prompt tones can be repeatedly broadcast without manual confirmation;
3.5 when the content of the total system measurement and control routing summary table is changed, the host computer is responsible for releasing the content into an appointed file under a shared directory for retrieval by a standby computer and a remote measurement processing server;
step four: after the third step is finished, starting a timer, initiating a route information refreshing request to each local monitoring system of the measurement and control station in a fixed time slot, and checking whether the configuration states of all satellites conform to the configuration principle of the measurement and control system of each satellite according to a measurement and control route summary table obtained after refreshing;
step five: if any satellite is found to lack any of the following resources:
one path of uplink resources;
one path of downlink resources;
two paths of downlink resources;
entering a sixth step;
step six: extracting the star main/backup measurement and control link and the emergency measurement and control link which are automatically planned 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, repeating the operation of the sixth step until the actual state of the link to be switched is normal, and automatically executing the device switching command; when all the daily backup measurement and control links fail, starting an emergency measurement and control link to provide measurement and control support for the satellite, and giving voice prompt and log record when a system executes equipment switching;
when the monitoring port receives a measurement and control routing table reported by a monitoring system of a local measurement and control station, if the information of the ground measurement and control station in a total system measurement and control routing summary table is not null, comparing whether new records exist in the current record one by one, and finding new or missing records, prompting a certain measurement and control station link to change or switch by voice and recording a system log; if the information of the measurement and control 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 simultaneously, a certain measurement and control station is prompted to access the system by voice and a system log is recorded.
6. The system of claim 5, wherein the system is configured to perform autonomous maintenance on a network of ground stations and autonomous operation on a network of "fragmented" regional stations, and further configured to: the main and standby machines are switched by adopting an automatic switching mode, and the flow of the automatic switching mode is as follows: the host computer actively detects whether a plurality of standby computers exist at fixed time every second, confirms the existence of the standby computers by sending detection messages to the standby computers, and returns detection responses to the host computer; when the host fails, if the standby machine does not receive the detection message for more than three seconds, the standby machine retrieves all the standby machine IP addresses and the switching priority codes from the shared directory appointment file, the standby machine with the highest priority code is automatically switched to the host, the new host issues the IP address of the new host into the shared directory appointment file, and other standby machines write the IP address of the new host and the switching priority codes into the file.
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