CN109756580B - Pneumatic data acquisition method and device - Google Patents
Pneumatic data acquisition method and device Download PDFInfo
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Abstract
The application provides a pneumatic data acquisition method and a device, which are applied to pneumatic data acquisition equipment connected with a sensor array, and the method and the device can be used for periodically acquiring data from the sensor array, generating data to be transmitted and directly transmitting the generated data packet to be transmitted when a data uploading command is received, so that the waiting time of data reporting of a pneumatic data acquisition device is reduced, and the efficiency of data reporting is improved. In detail, firstly, the pneumatic data collected by each sensor in the sensor array is periodically acquired; then, generating a data packet to be sent according to the newly acquired pneumatic data; and finally, adding the newly generated data packet to be sent to a data sending buffer to send to an upper terminal when a data reporting command is received.
Description
Technical Field
The application relates to the field of aircrafts, in particular to a pneumatic data acquisition method and device.
Background
The aircraft needs to collect data of various data systems during operation, wherein the data comprises pneumatic data collected by a pneumatic data collecting device. The aerodynamic data is essential in aircraft dynamics simulation, is applied to simulating the aerodynamic characteristics of the aircraft, establishes an aerodynamic mathematical model of the aircraft, and ensures the fidelity and the reliability of flight simulation. When data of the aircraft are collected, the upper terminal generally issues data uploading commands to the data collection devices in sequence according to a certain time interval, and the data collection devices finish data collection and uploading within a certain time after receiving the data uploading commands.
Referring to fig. 1, in a conventional pneumatic data acquisition device, after a data uploading command sent by an upper terminal is received, data acquired by each sensor in a sensor array is sequentially obtained by gating in an address scanning manner and is subjected to analog-to-digital conversion. And then generating a data packet according to the pneumatic data acquired by each sensor, and sending the data packet to an upper terminal. However, the number of data acquisition points of the flight pneumatic data is large (for example, the data acquisition points include starting pressure data of 128 channels, 2 temperature signals, backpressure signals, stagnation pressure signals, and the like), so that the waiting time of the reported data of the pneumatic data device is too long, and the efficiency of data reporting is affected.
Disclosure of Invention
In order to overcome at least the above-mentioned deficiencies in the prior art, one of the objectives of the present application is to provide a pneumatic data acquisition method applied to a pneumatic data acquisition device connected to a sensor array, the method comprising:
the method comprises the steps of periodically acquiring pneumatic data acquired by each sensor in a sensor array;
generating a data packet to be sent according to the newly acquired pneumatic data;
and when a data report command is received, adding the newly generated data packet to be sent to a data sending buffer to send to an upper terminal.
Optionally, in the method, the step of adding the newly generated data packet to be transmitted to a data transmission buffer to transmit to an upper terminal when receiving a data report command includes:
triggering a program interrupt when detecting that the data receiving buffer is not empty;
reading and detecting whether the data in the data receiving buffer is a data reporting command;
and if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to a data sending buffer.
Optionally, in the method, the step of periodically acquiring the pneumatic data collected by each sensor in the sensor array includes:
and according to the target scanning switching time, sequentially acquiring the pneumatic data acquired by each sensor in the sensor array periodically in an address scanning mode.
Optionally, in the above method, the method further comprises:
acquiring pneumatic data acquired by each sensor in the sensor array in a preset test state in advance in an address scanning mode, wherein the pneumatic data acquired by a preset target sensor in the sensor array in the preset test state has a preset target signal change trend;
reducing the scanning signal switching time of address scanning, and detecting whether the pneumatic data corresponding to other sensors except the target sensor has the target signal change trend;
and determining the shortest scanning signal switching time as the target scanning switching time under the condition that the pneumatic data corresponding to the other sensors do not have the target signal variation trend.
Optionally, in the above method, the pneumatic data acquisition device includes a watchdog circuit and a scanning circuit; the method for periodically acquiring the pneumatic data collected by each sensor in the sensor array comprises the following steps:
and periodically triggering the scanning circuit to acquire the pneumatic data acquired by each sensor in the sensor array through the watchdog circuit.
Another object of the present application is to provide a pneumatic data collecting device, which is applied to a pneumatic data collecting apparatus connected to a sensor array, the device including:
the data acquisition module is used for periodically acquiring pneumatic data acquired by each sensor in the sensor array;
the data processing module is used for generating a data packet to be sent according to the latest acquired pneumatic data;
and the data sending module is used for adding the newly generated data packet to be sent to a data sending buffer to send to an upper terminal when receiving a data reporting command.
Optionally, in the above apparatus, the data sending module is specifically configured to trigger a program interrupt when detecting that the data receiving buffer is not empty; reading and detecting whether the data in the data receiving buffer is a data reporting command; and if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to a data sending buffer.
Optionally, in the above apparatus, the data obtaining module is specifically configured to periodically and sequentially obtain the pneumatic data collected by each sensor in the sensor array in an address scanning manner according to the target scanning switching time.
Optionally, in the above apparatus, the apparatus further comprises:
the scanning switching time adjusting module is used for acquiring pneumatic data acquired by each sensor in the sensor array in a preset testing state in advance in an address scanning mode, wherein the pneumatic data acquired by a preset target sensor in the sensor array in the preset testing state has a preset target signal change trend; reducing the scanning signal switching time of address scanning, and detecting whether the pneumatic data corresponding to other sensors except the target sensor has the target signal change trend; and determining the shortest scanning signal switching time as the target scanning switching time under the condition that the pneumatic data corresponding to the other sensors do not have the target signal variation trend.
Optionally, in the above apparatus, the pneumatic data collecting device includes a watchdog circuit and a scanning circuit; the data acquisition module is specifically used for controlling the watchdog circuit to periodically trigger the scanning circuit to acquire the pneumatic data acquired by each sensor in the sensor array.
Compared with the prior art, the method has the following beneficial effects:
according to the pneumatic data acquisition method and device, data are periodically acquired from the sensor array, data to be transmitted are generated, and the generated data packet to be transmitted is directly transmitted when a data uploading command is received, so that the waiting time of data reporting of the pneumatic data acquisition device is shortened, and the data reporting efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a prior art pneumatic data acquisition device work flow;
FIG. 2 is a schematic diagram of a pneumatic data system provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of a hardware structure of a pneumatic data acquisition device according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of a pneumatic data collection method according to an embodiment of the present disclosure;
FIG. 5 is a second schematic flow chart of a pneumatic data collection method according to an embodiment of the present application;
FIG. 6 is a schematic diagram of functional modules of a pneumatic data collection device according to an embodiment of the present disclosure;
fig. 7 is a second functional block diagram of a pneumatic data acquisition device according to an embodiment of the present disclosure.
Icon: 10-a pneumatic data system; 100-a pneumatic data acquisition device; 110-a pneumatic data acquisition device; 111-a data acquisition module; 112-a data processing module; 113-a data transmission module; 114-scan switching time adjustment module; 120-a machine-readable storage medium; 130-a processor; 200-a sensor array; 20-upper terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 2, fig. 2 is a schematic view of the flight pneumatic data system 10 provided in this embodiment, and the flight pneumatic data system 10 includes a sensor array 200 and a pneumatic data collecting device 100.
The sensor array 200 includes a plurality of sensors, e.g., pressure sensors, backpressure compensation sensors, etc.
The pneumatic data acquisition device 100 provided by the embodiment is connected with the sensor array 200, and can acquire the pneumatic data acquired by a certain sensor in the sensor array 200 through row-column scanning signal gating. The pneumatic data acquisition device 100 is also connected to the upper terminal 20, and transmits the acquired pneumatic data to the upper terminal 20.
Referring to fig. 3, fig. 3 is a block diagram of the pneumatic data acquisition device 100 shown in fig. 2. The pneumatic data acquisition apparatus 100 includes a pneumatic data acquisition device 110, a machine-readable storage medium 120, and a processor 130.
The machine-readable storage medium 120 and the processor 130 are electrically connected to each other directly or indirectly to enable data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The pneumatic data collection device 110 includes at least one software function module that may be stored in the form of software or firmware (firmware) in the machine-readable storage medium 120 or solidified in an Operating System (OS) of the pneumatic data collection apparatus 100. The processor 130 is configured to execute executable modules stored in the machine-readable storage medium 120, such as software functional modules and computer programs included in the pneumatic data acquisition device 110.
The machine-readable storage medium 120 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The machine-readable storage medium 120 is used for storing a program, and the processor 130 executes the program after receiving an execution instruction.
The processor 130 may be an integrated circuit chip having signal processing capabilities. The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Referring to fig. 4, fig. 4 is a flowchart of a pneumatic data acquisition method applied to the pneumatic data acquisition apparatus 100 shown in fig. 2, and the method including various steps will be described in detail below.
Step S110, periodically acquiring the pneumatic data collected by each sensor in the sensor array 200.
Optionally, in this embodiment, the pneumatic data collecting apparatus 100 includes a watchdog circuit and a scanning circuit, and in step S110, the pneumatic data collecting apparatus 100 may periodically trigger the scanning circuit to acquire the pneumatic data collected by each sensor in the sensor array 200 through the watchdog circuit.
Optionally, in this embodiment, when acquiring the pneumatic data acquired by each sensor in the sensor array 200, the pneumatic data acquisition device 100 may switch the row scanning signal or the column scanning signal according to the target scanning switching time to sequentially gate and acquire each sensor in the sensor array 200, so as to sequentially acquire the voltage signal acquired by each sensor and perform analog-to-digital conversion to obtain corresponding pneumatic data.
And step S120, generating a data packet to be sent according to the newly acquired pneumatic data.
In this embodiment, after acquiring the pneumatic data acquired by each sensor, the pneumatic data acquisition device 100 may package the pneumatic data acquired by each sensor to generate a data packet to be sent.
It should be noted that, in the present embodiment, the steps S110 and S120 are periodically executed in a loop after the start initialization of the pneumatic data collecting apparatus 100 is completed, and the step S110 and the step S120 are executed independently of the data uploading command of the upper terminal 20.
In step S130, when receiving the data report command, the newly generated data packet to be transmitted is added to the data transmission buffer to be transmitted to the upper terminal 20.
Optionally, in this embodiment, the pneumatic data collecting device 100 may trigger a program interrupt when detecting that the data receiving buffer is not empty, and then read and detect whether the data in the data receiving buffer is a data reporting command.
And if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to the data sending buffer.
Based on the above design, in this embodiment, the latest data packet to be sent is generated in advance by independently and circularly performing step S110 and step S120, so that in step S130, the latest data packet to be sent can be directly sent once the data reporting command is received. Therefore, compared with the mode of starting data acquisition after receiving the data reporting command in the prior art, the scheme provided by this embodiment can reduce the waiting time for the pneumatic data acquisition device 100 to report data, and improve the efficiency of data reporting.
Optionally, in this embodiment, the pneumatic data acquisition device 100 acquires the pneumatic data acquired by each sensor of the sensor array 200 in an address scanning manner, and if the switching time of the scanning signal of the address scanning is too long, the signal acquisition cycle is too long, which affects the data acquisition efficiency; if the switching time of the scanning signals of the address scanning is too short, mutual interference among different sensors can be caused, and the read pneumatic data is inaccurate. Therefore, in order to determine the appropriate target scan switching time, referring to fig. 5, in this embodiment, step S210 to step S230 may be further included before step S110.
Step S210, acquiring, in advance, the pneumatic data acquired by each sensor in the sensor array 200 in the preset test state in an address scanning manner, wherein the pneumatic data acquired by the preset target sensor in the sensor array 200 in the preset test state has a preset target signal change trend.
Step S220, reducing the scanning signal switching time of the address scanning, and detecting whether the pneumatic data corresponding to the other sensors except the target sensor has a target signal variation trend.
Step S230, determining the shortest scan signal switching time as the target scan switching time when the pneumatic data corresponding to the other sensors does not have the target signal variation trend.
By the above manner, the minimum scan signal switching time which does not affect the data acquisition accuracy can be determined, thereby reducing the time duration for reading signals from the sensor array 200.
Accordingly, referring to fig. 6, the present embodiment further provides a pneumatic data collecting apparatus, which includes at least one functional module that can be stored in a machine-readable storage medium 120 in a software form. Functionally divided, the pneumatic data collection device 110 may include a data acquisition module 111, a data processing module 112, and a data transmission module 113.
The data acquisition module 111 is used for periodically acquiring the pneumatic data collected by each sensor in the sensor array 200.
In this embodiment, the data obtaining module 111 may be configured to execute step S110 shown in fig. 3, and reference may be made to the description of step S110 for a detailed description of the data obtaining module 111.
The data processing module 112 is configured to generate a data packet to be sent according to the latest obtained pneumatic data.
In this embodiment, the data processing module 112 may be configured to execute step S120 shown in fig. 3, and reference may be made to the description of step S120 for a detailed description of the data processing module 112.
The data sending module 113 is configured to add a newly generated data packet to be sent to the data sending buffer to send to the upper terminal 20 when receiving the data reporting command.
In this embodiment, the data sending module 113 may be configured to execute step S130 shown in fig. 3, and reference may be made to the description of step S130 for a detailed description of the data sending module 113.
Optionally, in this embodiment, the data sending module 113 is specifically configured to trigger a program interrupt when detecting that the data receiving buffer is not empty; reading and detecting whether the data in the data receiving buffer is a data reporting command; and if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to the data sending buffer.
Optionally, in this embodiment, the data obtaining module 111 is specifically configured to periodically and sequentially obtain the pneumatic data collected by each sensor in the sensor array 200 in an address scanning manner according to the target scanning switching time.
Optionally, referring to fig. 7, in the present embodiment, the pneumatic data collecting device 110 further includes a scan switching time adjusting module 114.
The scanning switching time adjusting module 114 is configured to obtain, in advance, the pneumatic data acquired by each sensor in the sensor array 200 in the preset test state in an address scanning manner, where in the sensor array 200 in the preset test state, the pneumatic data acquired by the preset target sensor has a preset target signal change trend; reducing the scanning signal switching time of address scanning, and detecting whether the pneumatic data corresponding to other sensors except the target sensor has the target signal change trend; and determining the shortest scanning signal switching time as the target scanning switching time under the condition that the pneumatic data corresponding to other sensors do not have the target signal variation trend.
Optionally, in this embodiment, the acquisition module includes a watchdog circuit and a scanning circuit; the data acquisition module 111 is specifically configured to control the watchdog circuit to periodically trigger the scanning circuit to acquire the pneumatic data acquired by each sensor in the sensor array 200.
In summary, according to the pneumatic data acquisition method and device provided by the application, data are periodically acquired from the sensor array, data to be transmitted are generated, and a generated data packet to be transmitted is directly transmitted when a data uploading command is received, so that the waiting time for data reporting of the pneumatic data acquisition device is reduced, and the efficiency of data reporting is improved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and all such changes or substitutions are included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A pneumatic data acquisition method for use with a pneumatic data acquisition device connected to a sensor array, the method comprising:
the method comprises the steps of periodically acquiring pneumatic data acquired by each sensor in a sensor array;
generating a data packet to be sent according to the newly acquired pneumatic data;
adding the newly generated data packet to be sent to a data sending buffer to send to an upper terminal when a data reporting command is received;
the method for periodically acquiring the pneumatic data acquired by each sensor in the sensor array comprises the following steps:
according to the target scanning switching time, sequentially acquiring pneumatic data acquired by each sensor in the sensor array periodically in an address scanning mode;
wherein the method further comprises:
acquiring pneumatic data acquired by each sensor in the sensor array in a preset test state in advance in an address scanning mode, wherein the pneumatic data acquired by a preset target sensor in the sensor array in the preset test state has a preset target signal change trend;
reducing the scanning signal switching time of address scanning, and detecting whether the pneumatic data corresponding to other sensors except the target sensor has the target signal change trend;
and determining the shortest scanning signal switching time as the target scanning switching time under the condition that the pneumatic data corresponding to the other sensors do not have the target signal variation trend.
2. The pneumatic data collection method according to claim 1, wherein the step of adding the newly generated data packet to be transmitted to a data transmission buffer to be transmitted to an upper terminal upon receiving a data report command comprises:
triggering a program interrupt when detecting that the data receiving buffer is not empty;
reading and detecting whether the data in the data receiving buffer is a data reporting command;
and if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to a data sending buffer.
3. The pneumatic data acquisition method according to claim 1, wherein the pneumatic data acquisition device comprises a watchdog circuit and a scanning circuit; the method for periodically acquiring the pneumatic data collected by each sensor in the sensor array comprises the following steps:
and periodically triggering the scanning circuit to acquire the pneumatic data acquired by each sensor in the sensor array through the watchdog circuit.
4. A pneumatic data acquisition device for use with a pneumatic data acquisition device connected to a sensor array, the device comprising:
the data acquisition module is used for periodically acquiring pneumatic data acquired by each sensor in the sensor array;
the data processing module is used for generating a data packet to be sent according to the latest acquired pneumatic data;
the data sending module is used for adding the newly generated data packet to be sent to a data sending buffer to send to an upper terminal when receiving a data reporting command;
the data acquisition module is specifically used for periodically and sequentially acquiring pneumatic data acquired by each sensor in the sensor array in an address scanning mode according to target scanning switching time;
wherein the apparatus further comprises:
the scanning switching time adjusting module is used for acquiring pneumatic data acquired by each sensor in the sensor array in a preset testing state in advance in an address scanning mode, wherein the pneumatic data acquired by a preset target sensor in the sensor array in the preset testing state has a preset target signal change trend; reducing the scanning signal switching time of address scanning, and detecting whether the pneumatic data corresponding to other sensors except the target sensor has the target signal change trend; and determining the shortest scanning signal switching time as the target scanning switching time under the condition that the pneumatic data corresponding to the other sensors do not have the target signal variation trend.
5. The pneumatic data acquisition device according to claim 4, wherein the data transmission module is specifically configured to trigger a program interrupt when detecting that the data receiving buffer is not empty; reading and detecting whether the data in the data receiving buffer is a data reporting command; and if the data in the data receiving buffer is detected to be a data reporting command, adding the newly generated data packet to be sent to a data sending buffer.
6. The pneumatic data acquisition device of claim 4, wherein the pneumatic data acquisition equipment comprises a watchdog circuit and a scanning circuit; the data acquisition module is specifically used for controlling the watchdog circuit to periodically trigger the scanning circuit to acquire the pneumatic data acquired by each sensor in the sensor array.
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| CN104568011A (en) * | 2015-01-16 | 2015-04-29 | 同济大学 | Device for large landslide multi-sensor integrated data collection |
| CN106952464A (en) * | 2017-01-19 | 2017-07-14 | 武汉企鹅能源数据有限公司 | Intelligent data acqusition system and acquisition method |
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| CN101739801A (en) * | 2010-01-27 | 2010-06-16 | 北京联合大学 | Wireless automatic meter reading method and system |
| CN106199768A (en) * | 2016-06-27 | 2016-12-07 | 武汉大学 | A kind of distributed intelligence meteorological sensor monitoring system and control method thereof |
| CN106900082A (en) * | 2017-02-04 | 2017-06-27 | 北京信息科技大学 | The data processing method and sensor network nodes of sensor network nodes |
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