CN117255036B - Link connectivity checking method, device and equipment of multi-target measurement and control system - Google Patents
Link connectivity checking method, device and equipment of multi-target measurement and control system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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Abstract
The invention is suitable for the technical field of aircraft measurement and control systems, and provides a method, a device and equipment for checking link connectivity of a multi-target measurement and control system, wherein the method comprises the following steps: after the measurement and control system sets a task execution loop according to the measurement and control task, a first test loop is established for a first part of links in the task execution loop; the first partial link is a partial link which is not changed in a task execution loop in the process of executing the measurement and control task; performing connectivity check on the first test loop; and judging whether the first part of links are abnormal according to the result of the connectivity check. The invention can improve the operation reliability of the digital phased array multi-target measurement and control system.
Description
Technical Field
The invention belongs to the technical field of aircraft measurement and control systems, and particularly relates to a method, a device and equipment for checking link connectivity of a multi-target measurement and control system.
Background
The foundation measurement and control system is an important component of the aerospace system, and the main tasks are to complete the orbit measurement and control, health state monitoring and management and working state monitoring and control of the on-orbit spacecraft.
In order to effectively complete the emission measurement and control of high-density space missions and meet the management requirements of thousands of on-orbit spacecrafts in the future, researchers propose to introduce the multi-beam technology of the phased array antenna into a foundation measurement and control system so as to realize multi-target simultaneous measurement and control.
The multi-target measurement and control system based on the digital phased array can form a plurality of beams simultaneously, realizes stable and continuous tracking of targets by participating in the sliding of the array elements of the beam synthesis antenna, further completes simultaneous measurement and control of a plurality of targets, and effectively improves the measurement and control supporting capability of single equipment. However, because the multi-target measurement and control system has a complex structure and adopts an all-digital signal processing mode, the system workflow has a zero calibration flow, and the problem that tasks are not normally executed due to incomplete configuration of sporadic task links in the system operation process is solved.
Disclosure of Invention
In view of this, the embodiment of the invention provides a method, a device and equipment for checking link connectivity of a multi-target measurement and control system, so as to improve the operation reliability of the multi-target measurement and control system based on a digital phased array.
A first aspect of an embodiment of the present invention provides a method for checking link connectivity of a multi-target measurement and control system, including:
after the measurement and control system sets a task execution loop according to the measurement and control task, a first test loop is established for a first part of links in the task execution loop; the first partial link is a partial link which is not changed in a task execution loop in the process of executing the measurement and control task;
performing connectivity check on the first test loop;
and judging whether the first part of links are abnormal according to the result of the connectivity check.
Optionally, the structure of the task execution loop includes:
the signal output end of the multifunctional digital baseband is connected with a plurality of primary transmitting signal processing units through a transmitting digital switch matrix and a secondary transmitting signal processing unit in sequence, each primary transmitting signal processing unit is connected with a transmitting assembly, and each transmitting assembly is connected with a plurality of antenna array elements;
the signal input end of the multifunctional digital baseband is connected with a plurality of primary receiving signal processing units sequentially through a receiving digital switch matrix and a secondary receiving signal processing unit, each primary receiving signal processing unit is connected with a receiving assembly, and each receiving assembly is connected with a plurality of antenna array elements;
correspondingly, the first part of the link comprises:
the link between the signal output end of the multifunctional digital baseband and the secondary transmitting signal processing unit, and the link between the signal input end of the multifunctional digital baseband and the secondary receiving signal processing unit.
Optionally, establishing a first test loop for a first portion of links in the task execution loop includes:
and disconnecting the secondary transmitting signal processing unit from the plurality of primary transmitting signal processing units, the secondary receiving signal processing unit from the plurality of primary receiving signal processing units, and controlling the secondary transmitting signal processing unit and the secondary receiving signal processing unit to be connected with the testing unit so as to form a first testing loop.
Optionally, the test unit includes: the device comprises a first-stage transmitting signal processing unit for testing, a transmitting assembly for testing, a controllable frequency converter, a receiving assembly for testing and a first-stage receiving signal processing unit for testing;
the second-level transmitting signal processing unit is connected with the first-level transmitting signal processing unit for testing, the first-level transmitting signal processing unit for testing is sequentially connected with the transmitting assembly for testing, the controllable frequency converter and the receiving assembly for testing, and the receiving assembly for testing is connected with the first-level receiving signal processing unit for testing.
Optionally, performing connectivity checking on the first test loop includes:
performing self-closed loop zeroing on the first test loop;
and judging whether the first test loop has abnormal communication or not according to the zero self-closed loop result.
Optionally, the method for checking link connectivity of the multi-target measurement and control system further includes:
in the process of executing the measurement and control task, performing connectivity check on a second part of links in the task execution loop; the second partial link is a partial link which may be changed in a task execution loop in the process of executing the measurement and control task;
the second partial link includes:
a connection link between the secondary transmission signal processing unit and the plurality of primary transmission signal processing units, a connection link between each primary transmission signal processing unit and the corresponding transmission assembly;
and a connection link between the secondary reception signal processing unit and the plurality of primary reception signal processing units, a connection link between each primary reception signal processing unit and the corresponding reception component.
Optionally, performing connectivity checking on a second part of links in the task execution loop includes:
for any two devices with connecting links in the second part of links, enabling the device sending the signals to send data frames to the device receiving the signals in real time, and judging whether the connecting links between the two devices are abnormal according to the condition of the data frames received by the device receiving the signals.
The device comprises a secondary transmitting signal processing unit, a primary transmitting signal processing unit, a transmitting component, a secondary receiving signal processing unit, a primary receiving signal processing unit and a receiving component.
A second aspect of an embodiment of the present invention provides a link connectivity checking apparatus of a multi-target measurement and control system, including:
the system comprises a building module, a test control module and a control module, wherein the building module is used for building a first test loop for a first part of links in a task execution loop after the measurement and control system sets the task execution loop according to a measurement and control task; the first partial link is a partial link which is not changed in a task execution loop in the process of executing the measurement and control task;
the checking module is used for checking connectivity of the first test loop;
and the judging module is used for judging whether the first part of links are abnormal according to the result of connectivity check.
A third aspect of the embodiments of the present invention provides an inspection apparatus comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method as described above in the first aspect or any implementation of the first aspect when the computer program is executed.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
after the measurement and control system sets the task execution loop according to the measurement and control task, the embodiment of the invention carries out connectivity check on the first part of links in the task execution loop (namely, the part of links which do not change in the task execution loop in the process of executing the measurement and control task) before the measurement and control task is executed by establishing the first test loop, so as to judge whether the first part of links are abnormal, thereby avoiding the problem that the task is not normally executed due to the fact that the sporadic task execution loop is not configured in place when the measurement and control system is in operation, improving the reliability of the operation of the digital phased array multi-target measurement and control system, further improving the success rate of the measurement and control task and reducing the operation and maintenance cost of equipment. In addition, as the connectivity check is carried out by utilizing the spare time in the automatic preparation process of the measurement and control system, the task preparation time is not additionally increased, the abnormal early warning can be timely carried out, and the sufficient time is reserved for the manual emergency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a digital phased array multi-target measurement and control system according to an embodiment of the present invention;
fig. 2 is a schematic implementation flow chart of a link connectivity checking method of a multi-target measurement and control system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a task execution loop provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first test loop provided by an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a device for checking link connectivity of a multi-objective measurement and control system according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an inspection apparatus according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
The measurement and control system in this embodiment may be a digital phased array multi-target measurement and control system. First, a digital phased array multi-target measurement and control system is briefly described.
The digital phased array multi-target measurement and control system is a measurement and control system adopting a digital phased array antenna and a digital multi-beam technology, has the capacity of simultaneously measuring and controlling a plurality of targets in space, and is shown in a system schematic diagram as shown in figure 1.
The digital phased array multi-target measurement and control system mainly comprises an array antenna, a radio frequency subsystem, a multifunctional digital baseband subsystem, a monitoring subsystem, a time-frequency subsystem, a test calibration subsystem, a recording subsystem, a data interaction subsystem and a health management subsystem. The array antenna and the radio frequency subsystem mainly comprise an antenna structure subsystem, an antenna radio frequency subsystem, a beam forming and controlling subsystem, an intermediate frequency digital switch matrix and the like, and mainly receive uplink control signals of the multifunctional digital baseband and form emission beam radiation to a target, receive signals of the target and transmit the signals to the multifunctional digital baseband; the multifunctional digital baseband subsystem mainly comprises digital baseband equipment and is used for completing the processing of target uplink and downlink signals; the monitoring subsystem controls the operation of the whole system, and ensures that the system can normally operate; the time-frequency division system mainly provides unified clock signals and frequency integrated signals for the system, and ensures that the signal processing functions of the system are synchronous and normal; the test calibration system mainly completes system function joint test and performance index test; the recording subsystem is used for mainly completing the recording of the target downlink signal and providing support for data analysis and fault investigation; the data interaction subsystem mainly completes information interaction between the system and the user unit; the health management subsystem mainly completes monitoring of the working states of all the extensions of the system, diagnosis and prediction of faults and the like.
The number of antenna array elements of the digital phased array multi-target measurement and control system reaches tens of thousands, each antenna array element comprises signals of a plurality of targets, dozens of channels are respectively arranged behind each antenna array element, if the traditional cable connection is adopted, the system wiring is extremely complex, in order to ensure stable and rapid transmission of the signals, the complexity of the system wiring is reduced, and all the equipment in the system are in signal transmission by adopting an optical fiber interconnection mode.
The flow of receiving the target downlink signal by the digital phased array multi-target measurement and control system is as follows: the system selects an antenna array element in a designated area to receive a target downlink signal according to the target position, the antenna array element receives the target downlink signal, and then the antenna array element is processed by a primary beam forming unit and a secondary beam forming unit to form a corresponding receiving beam, and the corresponding receiving beam can be switched to any multifunctional digital processing baseband through a digital switch matrix to complete the processing of the target signal.
Similarly, the flow of the digital phased array multi-target measurement and control system sending signals to the target is as follows: the multifunctional digital baseband generates a control signal of a target, is switched to a corresponding secondary emission beam forming unit through a digital switch matrix, is processed to form an emission beam through the secondary beam forming unit and the primary beam forming unit, is radiated to the target through an antenna array element, and completes measurement and control of the target.
In the process of forming a beam tracking target by the digital phased array multi-target measurement and control system, as the target moves, the antenna array elements and part of links used for participating in the beam forming are also changed, so that no zero-correction loop is usually arranged in the process of preparing the system task automatically.
At present, the preparation stage of the digital phased array multi-target measurement and control system for executing the measurement and control task is 5 minutes, namely T0 is taken as the execution time of the measurement and control task, from T0-5 minutes to T0, the system performs an automatic preparation process, mainly performs work such as issuing of a work plan, configuration of a task environment, issuing setting of task parameters and equipment parameters, setting of a task execution loop and the like, and can not judge whether a task link is communicated until the time of T0 starts to calibrate, and because the task is started at this time, emergency treatment can directly influence the execution of the task.
Therefore, referring to fig. 2, the present embodiment provides a method for checking link connectivity of a multi-target measurement and control system, which specifically includes the following steps:
step S101, after a measurement and control system sets a task execution loop according to a measurement and control task, a first test loop is established for a first part of links in the task execution loop; the first partial link is a partial link which is not changed in a task execution loop in the process of executing the measurement and control task.
In this embodiment, through testing, the time consumed by the digital phased array multi-target measurement and control system to complete the automated preparation process is not more than 2 minutes, so that at least 3 minutes of time can be spent on the connectivity test of the task execution loop after the automated preparation process is finished and before the task execution.
As a possible implementation manner, the structure of the task execution loop may be as shown in fig. 3:
the signal output end of the multifunctional digital baseband 30 is connected with a plurality of primary transmitting signal processing units 33 through a transmitting digital switch matrix 31 and a secondary transmitting signal processing unit 32 in sequence, each primary transmitting signal processing unit 33 is connected with a transmitting assembly 34, and each transmitting assembly 34 is connected with a plurality of antenna array elements 35.
The signal input end of the multifunctional digital baseband 30 is connected with a plurality of primary receiving signal processing units 38 through a receiving digital switch matrix 36 and a secondary receiving signal processing unit 37 in sequence, each primary receiving signal processing unit 38 is connected with a receiving assembly 39, and each receiving assembly 39 is connected with a plurality of antenna array elements 35.
The multifunctional digital baseband 30 corresponds to the multifunctional digital baseband subsystem in fig. 1, the transmitting digital switch matrix 31 and the receiving digital switch matrix 36 correspond to the intermediate frequency digital switch matrix in fig. 1, the secondary transmitting signal processing unit 32 and the primary transmitting signal processing unit 33 correspond to the transmitting beam forming device in fig. 1, the secondary receiving signal processing unit 37 and the primary receiving signal processing unit 38 correspond to the receiving beam forming device in fig. 1, the transmitting component 34 corresponds to the digital transmitting component in fig. 1, the receiving component 39 corresponds to the digital receiving component in fig. 1, and the antenna array element 35 is a transceiver array antenna in fig. 1.
In this embodiment, the first part of the link includes: the link between the signal output end of the multifunctional digital baseband 30 to the secondary transmission signal processing unit 32 (i.e., the multifunctional digital baseband 30→the transmission digital switch matrix 31→the secondary transmission signal processing unit 32), and the link between the signal input end of the multifunctional digital baseband 30 to the secondary reception signal processing unit 37 (i.e., the secondary reception signal processing unit 37→the reception digital switch matrix 36→the multifunctional digital baseband 30). When the target moves and the antenna beam angle changes, the first part of links are unchanged all the time, so that a first test loop can be established by using the first part of links before the task is executed, thereby performing connectivity check, and finding out link problems in advance to deal with.
Step S102, connectivity checking is carried out on a first test loop; and judging whether the first part of links are abnormal according to the result of the connectivity check.
In this embodiment, by checking the connectivity of the first test loop, if so, it is indicated that the first portion of links are also connected. If the first part of links are abnormal, the first part of links are abnormal.
Therefore, in this embodiment, after the measurement and control system sets the task execution loop according to the measurement and control task, for the first part of links in the task execution loop (that is, the part of links in the task execution loop that does not change during the process of executing the measurement and control task), before the measurement and control task is executed, connectivity inspection is performed by establishing the first test loop, so as to determine whether the first part of links are abnormal, thereby avoiding the problem that the task is not normally executed due to the fact that the sporadic task execution loop is not configured in place during the operation of the measurement and control system, improving the reliability of the operation of the digital phased array multi-target measurement and control system, further improving the success rate of the measurement and control task, and reducing the operation and maintenance cost of the device. In addition, as the connectivity check is carried out by utilizing the spare time in the automatic preparation process of the measurement and control system, the task preparation time is not additionally increased, the abnormal early warning can be timely carried out, and the sufficient time is reserved for the manual emergency.
As a possible implementation manner, for the first part of links in the task execution loop, a first test loop is established, which may be described in detail as:
and disconnecting the secondary transmitting signal processing unit from the plurality of primary transmitting signal processing units, the secondary receiving signal processing unit from the plurality of primary receiving signal processing units, and controlling the secondary transmitting signal processing unit and the secondary receiving signal processing unit to be connected with the testing unit so as to form a first testing loop.
The test unit includes: the device comprises a first-stage transmitting signal processing unit for testing, a transmitting assembly for testing, a controllable frequency converter, a receiving assembly for testing and a first-stage receiving signal processing unit for testing;
the second-level transmitting signal processing unit is connected with the first-level transmitting signal processing unit for testing, the first-level transmitting signal processing unit for testing is sequentially connected with the transmitting assembly for testing, the controllable frequency converter and the receiving assembly for testing, and the receiving assembly for testing is connected with the first-level receiving signal processing unit for testing.
In the present embodiment, as shown in fig. 4, the secondary transmission signal processing unit 32 and the secondary reception signal processing unit 37 are both connected to the test unit 40, thereby constituting a first test loop. The test transmitting component 42 and the test receiving component 44 may select specific devices, for example, select the receiving component and the transmitting component at the lowest edge of the whole antenna array in the (0, 0) direction, directly connect the output end of the transmitting component with the controllable frequency converter 43, directly transmit the output signal after frequency conversion by the controllable frequency converter 43 to the receiving component, and the receiving component and the transmitting component in the test loop do not participate in the synthesis of the antenna beam. After the test transmitting unit 42 and the test receiving unit 44 are determined, the test primary transmitting signal processing unit 41 in the first test loop is a primary transmitting signal processing unit connected to the test transmitting unit 42, and the test primary receiving signal processing unit 45 in the first test loop is a primary transmitting signal processing unit connected to the test receiving unit 44. The secondary transmit/receive signal processing units in the first test loop are in one-to-one correspondence with the beams used for the task. The multifunctional digital baseband in the first test loop is the baseband used for tasks, and the transmitting digital switch matrix and the receiving digital switch matrix mainly realize the switching of signals between the secondary processing board and the baseband.
It will be appreciated that the first test loop must ensure that the links between the secondary transmit/receive signal processing unit, the primary transmit/receive signal processing unit for testing, the transmit/receive component for testing and the controllable frequency converter are properly connected to determine whether the first portion of the links are connected.
As one possible implementation, the connectivity check for the first test loop may be implemented by:
performing self-closed loop zeroing on the first test loop;
and judging whether the first test loop has abnormal communication or not according to the zero self-closed loop result.
In this embodiment, the signal takes a certain time to process. In the first test loop, the multifunctional digital baseband 30 is controlled to generate test signals, and then the test signals respectively pass through the transmitting digital switch matrix 31, the secondary transmitting signal processing unit 32, the primary transmitting signal processing unit 41 for testing, the transmitting assembly 42 for testing and the controllable frequency converter 43, and after passing through the controllable frequency converter 43, the test signals respectively pass through the receiving assembly 44 for testing, the primary receiving signal processing unit 45 for testing, the secondary receiving signal processing unit 37 and the receiving digital switch matrix 36 to reach the multifunctional digital baseband 30. When the digital baseband 30 is able to receive the test signal, indicating that the first test loop is on, the first portion of the link is not abnormal. Meanwhile, the transmission time of the test signal is obtained, and the self-closing loop is zero, so that the target is measured and controlled more accurately.
In one embodiment, the method for checking link connectivity of the multi-target measurement and control system further comprises:
in the process of executing the measurement and control task, performing connectivity check on a second part of links in the task execution loop; the second partial link is a partial link which may be changed in a task execution loop in the process of executing the measurement and control task;
referring to fig. 3, the second partial link includes:
a connection link between the secondary transmission signal processing unit 32 and the plurality of primary transmission signal processing units 33, and a connection link between each primary transmission signal processing unit 33 and the corresponding transmission component 34.
Connection links between the secondary reception signal processing unit 37 and the plurality of primary reception signal processing units 38, connection links between each primary reception signal processing unit 38 and the corresponding reception component 39.
In this embodiment, during the execution of the measurement and control task, as the target moves, the angle of the beam changes, and different antenna elements need to be used for measurement and control, and the transmitting/receiving component and the primary transmitting/receiving signal processing unit will also change, so that the link inspection before the execution of the measurement and control task cannot be realized.
Therefore, in the process of executing the measurement and control task, the embodiment performs real-time connectivity check on the second part of links in the task execution loop, including:
for any two devices with connecting links in the second part of links, enabling the device sending the signals to send data frames to the device receiving the signals in real time, and judging whether the connecting links between the two devices are abnormal according to the condition of the data frames received by the device receiving the signals.
The device comprises a secondary transmitting signal processing unit, a primary transmitting signal processing unit, a transmitting component, a secondary receiving signal processing unit, a primary receiving signal processing unit and a receiving component.
In this embodiment, the data frame includes a frame header and frame data, and the lengths of the frame header and the frame length can be adjusted according to the requirements. And transmitting a data frame to a device for receiving the signal in real time through the device for transmitting the signal, and transmitting a null frame when no data exists, and judging whether the connecting link is abnormal or not according to whether the data frame can be detected in real time by the device for receiving the signal. Preferably, if 3 frames of data are detected continuously, it may be set that the transmitting end is connected to the receiving end normally, otherwise, the receiving end is not connected to the transmitting end.
The automatic preparation flow of the conventional digital phased array multi-target measurement and control system is as follows:
step 1: the system monitors and dispatches the system to set up task environment of each extension in the system according to the automatic preparation flow of starting in T0-5min of the measurement and control task;
step 2: the system monitors and schedules the task configuration environment of each extension, starts a baseband working mode and completes the operations such as issuing a working plan;
step 3: the system monitors and transmits satellite task parameters and equipment parameters to each extension, each extension completes the configuration of the task parameters and forecast the arc section of the satellite task;
step 4: the system monitoring control system sets according to the task execution loop, and the task uses a link to complete zero value retrieval and issuing according to the task mode from the database;
step 5: the system monitors and controls beam forming at T0-1min and points to a waiting point to wait for target to get in.
Step 6: and the system monitors and controls the system to start phase correction at the time T0, and issues and binds a phase correction zero value after phase correction is finished, so that measurement and control are started.
The embodiment is equivalent to that on the basis of adding a task execution loop between the step 4 and the step 5, the task link based on self-closed loop zeroing is developed without changing part of connectivity check. And in the measurement and control process of the step 6, performing a task link change part connectivity check based on data frame detection.
The task link connection checking function based on data frame detection in the invention always runs through in the system operation process, does not occupy the system task preparation time, and has no influence on task operation. The task link connectivity checking method based on self-closed loop zeroing is carried out in a task preparation stage, and mainly completes the work of zeroing loop setting, zeroing parameter setting, system zeroing checking and the like. Through testing, the time for completing task link connectivity inspection based on self-closed loop zero calibration is less than 1 minute, is less than the idle time of a task preparation stage of a digital phased array multi-target measurement and control system, does not increase new time consumption, can effectively solve the problem of task failure caused by sporadic setting of a system task link, improves the reliability of the digital phased array multi-target measurement and control system, reduces the operation and maintenance cost of the system, and is more suitable for measurement and control management requirements of future large-scale satellite constellations.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
The embodiment of the invention also provides a link connectivity checking device 50 of the multi-target measurement and control system, which comprises:
the establishing module 51 is configured to establish a first test loop for a first part of links in the task execution loop after the measurement and control system sets the task execution loop according to the measurement and control task; the first partial link is a partial link which is not changed in a task execution loop in the process of executing the measurement and control task.
A checking module 52 for performing connectivity checking on the first test loop.
A judging module 53, configured to judge whether the first part of links are abnormal according to the result of the connectivity check.
As one possible implementation, the structure of the task execution loop includes:
the signal output end of the multifunctional digital baseband is connected with a plurality of primary transmitting signal processing units through a transmitting digital switch matrix and a secondary transmitting signal processing unit in sequence, each primary transmitting signal processing unit is connected with a transmitting assembly, and each transmitting assembly is connected with a plurality of antenna array elements;
the signal input end of the multifunctional digital baseband is connected with a plurality of primary receiving signal processing units sequentially through a receiving digital switch matrix and a secondary receiving signal processing unit, each primary receiving signal processing unit is connected with a receiving assembly, and each receiving assembly is connected with a plurality of antenna array elements;
correspondingly, the first part of the link comprises:
the link between the signal output end of the multifunctional digital baseband and the secondary transmitting signal processing unit, and the link between the signal input end of the multifunctional digital baseband and the secondary receiving signal processing unit.
As a possible implementation, the establishing module 51 is specifically configured to:
and disconnecting the secondary transmitting signal processing unit from the plurality of primary transmitting signal processing units, the secondary receiving signal processing unit from the plurality of primary receiving signal processing units, and controlling the secondary transmitting signal processing unit and the secondary receiving signal processing unit to be connected with the testing unit so as to form a first testing loop.
As a possible implementation, the test unit includes: the device comprises a first-stage transmitting signal processing unit for testing, a transmitting assembly for testing, a controllable frequency converter, a receiving assembly for testing and a first-stage receiving signal processing unit for testing; the second-level transmitting signal processing unit is connected with the first-level transmitting signal processing unit for testing, the first-level transmitting signal processing unit for testing is sequentially connected with the transmitting assembly for testing, the controllable frequency converter and the receiving assembly for testing, and the receiving assembly for testing is connected with the first-level receiving signal processing unit for testing.
As a possible implementation, the checking module 52 is specifically configured to:
performing self-closed loop zeroing on the first test loop;
and judging whether the first test loop has abnormal communication or not according to the zero self-closed loop result.
As one possible implementation, the checking module 52 is further configured to:
in the process of executing the measurement and control task, performing connectivity check on a second part of links in the task execution loop; the second partial link is a partial link which may be changed in a task execution loop in the process of executing the measurement and control task;
the second partial link includes:
a connection link between the secondary transmission signal processing unit and the plurality of primary transmission signal processing units, a connection link between each primary transmission signal processing unit and the corresponding transmission assembly;
and a connection link between the secondary reception signal processing unit and the plurality of primary reception signal processing units, a connection link between each primary reception signal processing unit and the corresponding reception component.
As one possible implementation, the checking module 52 is further configured to:
for any two devices with connecting links in the second part of links, enabling the device sending the signals to send data frames to the device receiving the signals in real time, and judging whether the connecting links between the two devices are abnormal according to the condition of the data frames received by the device receiving the signals.
The device comprises a secondary transmitting signal processing unit, a primary transmitting signal processing unit, a transmitting component, a secondary receiving signal processing unit, a primary receiving signal processing unit and a receiving component.
Fig. 6 is a schematic diagram of an inspection apparatus 60 according to an embodiment of the present invention. As shown in fig. 6, the inspection apparatus 60 of this embodiment includes: a processor 61, a memory 62 and a computer program 63 stored in the memory 62 and executable on the processor 61, such as a link connectivity check program of a multi-target measurement and control system. The steps in the above-described embodiments of the link connectivity check method of each multi-target measurement and control system are implemented by the processor 61 when executing the computer program 63, for example, steps S101 to S102 shown in fig. 2. Alternatively, the processor 61, when executing the computer program 63, implements the functions of the modules in the above-described embodiments of the apparatus, such as the functions of the modules 51 to 53 shown in fig. 5.
By way of example, the computer program 63 may be divided into one or more modules/units, which are stored in the memory 62 and executed by the processor 61 to complete the present invention. One or more of the modules/units may be a series of computer program instruction segments capable of performing a specific function for describing the execution of the computer program 63 in the examination apparatus 60.
The inspection device 60 may be a computing device such as a desktop computer, a notebook computer, a palm top computer, and a cloud server. The inspection apparatus 60 may include, but is not limited to, a processor 61, a memory 62. It will be appreciated by those skilled in the art that fig. 6 is merely an example of the inspection apparatus 60 and is not limiting of the inspection apparatus 60, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the inspection apparatus 60 may also include input and output devices, network access devices, buses, etc.
The processor 61 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 62 may be an internal storage unit of the inspection device 60, such as a hard disk or a memory of the inspection device 60. The memory 62 may also be an external storage device of the inspection device 60, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the inspection device 60. Further, the memory 62 may also include both internal and external memory units of the inspection device 60. The memory 62 is used to store computer programs and other programs and data required by the inspection device 60. The memory 62 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiment of the invention also provides a measurement and control system which comprises the inspection equipment.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus/inspection device and method may be implemented in other ways. For example, the apparatus/inspection device embodiments described above are merely illustrative, e.g., the division of modules or elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of each method embodiment described above may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. The link connectivity checking method of the multi-target measurement and control system is characterized by comprising the following steps of:
after the measurement and control system sets a task execution loop according to the measurement and control task, a first test loop is established for a first part of links in the task execution loop; the first partial link is a partial link which is not changed in the task execution loop in the process of executing the measurement and control task;
performing connectivity check on the first test loop;
judging whether the first part of links are abnormal according to the result of connectivity check;
the task execution loop comprises the following structures:
the signal output end of the multifunctional digital baseband is connected with a plurality of primary transmitting signal processing units through a transmitting digital switch matrix and a secondary transmitting signal processing unit in sequence, each primary transmitting signal processing unit is connected with a transmitting assembly, and each transmitting assembly is connected with a plurality of antenna array elements;
the signal input end of the multifunctional digital baseband is connected with a plurality of primary receiving signal processing units sequentially through a receiving digital switch matrix and a secondary receiving signal processing unit, each primary receiving signal processing unit is connected with a receiving assembly, and each receiving assembly is connected with a plurality of antenna array elements;
correspondingly, the first part of the link comprises:
the link between the signal output end of the multifunctional digital baseband and the secondary transmitting signal processing unit, and the link between the signal input end of the multifunctional digital baseband and the secondary receiving signal processing unit.
2. The method for checking link connectivity of a multi-target measurement and control system of claim 1, wherein establishing a first test loop for a first portion of links in a task execution loop comprises:
and disconnecting the secondary transmitting signal processing unit from the plurality of primary transmitting signal processing units, the secondary receiving signal processing unit from the plurality of primary receiving signal processing units, and controlling the secondary transmitting signal processing unit and the secondary receiving signal processing unit to be connected with the testing unit so as to form a first testing loop.
3. The method for checking link connectivity of a multi-target measurement and control system according to claim 2, wherein the test unit comprises: the device comprises a first-stage transmitting signal processing unit for testing, a transmitting assembly for testing, a controllable frequency converter, a receiving assembly for testing and a first-stage receiving signal processing unit for testing;
the secondary emission signal processing unit is connected with the primary emission signal processing unit for testing, the primary emission signal processing unit for testing is sequentially connected with the emission component for testing, the controllable frequency converter and the receiving component for testing, and the receiving component for testing is connected with the primary receiving signal processing unit for testing.
4. The method for checking link connectivity of a multi-target measurement and control system according to claim 1, wherein the step of checking connectivity of the first test loop comprises:
performing self-closing loop zeroing on the first test loop;
and judging whether the first test loop has abnormal communication or not according to the result that the self-closed loop is zero.
5. The method for checking link connectivity of a multi-target measurement and control system according to claim 1, further comprising:
in the process of executing the measurement and control task, performing connectivity check on a second part of links in the task execution loop; the second partial link is a partial link which may be changed in the task execution loop in the process of executing the measurement and control task;
the second partial link includes:
a connection link between the secondary transmission signal processing unit and the plurality of primary transmission signal processing units, a connection link between each primary transmission signal processing unit and the corresponding transmission assembly;
and a connection link between the secondary reception signal processing unit and the plurality of primary reception signal processing units, a connection link between each primary reception signal processing unit and the corresponding reception component.
6. The method for checking link connectivity of a multi-target measurement and control system according to claim 5, wherein the step of checking connectivity of the second part of links in the task execution loop comprises:
for any two devices with connecting links in the second part of links, enabling the device for transmitting signals to transmit data frames to the device for receiving signals in real time, and judging whether the connecting links between the two devices are abnormal according to the condition of the data frames received by the device for receiving signals;
the device comprises a secondary transmitting signal processing unit, a primary transmitting signal processing unit, a transmitting component, a secondary receiving signal processing unit, a primary receiving signal processing unit and a receiving component.
7. A link connectivity check device of a multi-target measurement and control system, comprising:
the system comprises a building module, a test control module and a control module, wherein the building module is used for building a first test loop for a first part of links in a task execution loop after the measurement and control system sets the task execution loop according to a measurement and control task; the first partial link is a partial link which is not changed in the task execution loop in the process of executing the measurement and control task;
the checking module is used for checking the connectivity of the first test loop;
the judging module is used for judging whether the first part of links are abnormal according to the result of connectivity check;
the task execution loop comprises the following structures:
the signal output end of the multifunctional digital baseband is connected with a plurality of primary transmitting signal processing units through a transmitting digital switch matrix and a secondary transmitting signal processing unit in sequence, each primary transmitting signal processing unit is connected with a transmitting assembly, and each transmitting assembly is connected with a plurality of antenna array elements;
the signal input end of the multifunctional digital baseband is connected with a plurality of primary receiving signal processing units sequentially through a receiving digital switch matrix and a secondary receiving signal processing unit, each primary receiving signal processing unit is connected with a receiving assembly, and each receiving assembly is connected with a plurality of antenna array elements;
correspondingly, the first part of the link comprises:
the link between the signal output end of the multifunctional digital baseband and the secondary transmitting signal processing unit, and the link between the signal input end of the multifunctional digital baseband and the secondary receiving signal processing unit.
8. An inspection device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the method according to any one of claims 1 to 6.
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