CN112907782A - Multisource multi-type data playback device based on time synchronization - Google Patents
Multisource multi-type data playback device based on time synchronization Download PDFInfo
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- 238000012545 processing Methods 0.000 claims abstract description 35
- 230000001360 synchronised effect Effects 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 6
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 claims description 3
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- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000007726 management method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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Abstract
The invention relates to a multi-source multi-type data playback device, in particular to a multi-source multi-type data playback device based on time synchronization, and belongs to the field of design of airplane avionics systems. A multisource multi-type data playback device based on time synchronization comprises an airborne multi-device multi-type data synchronous processing device and a ground multi-type data synchronous playback processing device; the airborne multi-equipment multi-type data synchronous processing device is used for acquiring and receiving generated flight parameter data, 1553B bus monitoring data, audio data and video data; the ground multi-type data synchronous playback processing device is used for carrying out synchronous playback processing on reports, curves, audios and multi-channel videos after the multi-source data are sorted and aligned according to the time information put in by the different types of data. The invention has the following advantages: 1. the flight efficiency evaluation level is improved; 2. providing a basis for daily maintenance and fault isolation of the airplane; 3. synchronous playback of multiple airplanes is achieved.
Description
Technical Field
The invention relates to a multi-source multi-type data playback device, in particular to a multi-source multi-type data playback device based on time synchronization, and belongs to the field of design of airplane avionics systems.
Background
The flight comment is to explain and comment on problems occurring in the flight training process and to thoroughly and specifically analyze the problems, and is also a communication between people, and the flight comment provides the experience accumulated in the flight process to each other and communicates with each other to improve the flight technology. The flight comment plays an important role in ensuring the flight safety, can find hidden dangers and problems, and fully prepares for the next flight, so the flight comment is an important stage in the whole flight process.
Currently, airborne flight parameter data, 1553B bus monitoring data, audio/video data and event data are generated by different data source devices, playback analysis is performed by different software, the data are asynchronous with each other, great troubles are caused to flight comment, daily maintenance of an airplane, airplane fault isolation and the like, and the problems are not beneficial to field troubleshooting and problem location.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a multi-source multi-type data playback device based on time synchronization, which can effectively ensure the synchronous playback of data information.
In order to achieve the purpose, the invention adopts the following technical scheme: a multisource multi-type data playback device based on time synchronization comprises an airborne multi-device multi-type data synchronous processing device and a ground multi-type data synchronous playback processing device; the airborne multi-equipment multi-type data synchronous processing device is used for acquiring and receiving generated flight parameter data, 1553B bus monitoring data, audio data and video data; the ground multi-type data synchronous playback processing device is used for carrying out synchronous playback processing on reports, curves, audios and multi-channel videos after the multi-source data are sorted and aligned according to the time information put in by the different types of data.
Preferably, the recording devices in the onboard multi-device and multi-type data synchronous processing device are an electromechanical management computer, a backup parameter collector and a data loading recorder.
Preferably, the electromechanical management computer: collecting flight parameter data of a flight control computer, inertial navigation, atmosphere and a fuel oil/hydraulic system on a receiver, finishing data packing processing according to a pulse per second signal sent by the inertial navigation, and sending the data to a data loading recorder for storage;
a backup parameter collector: receiving 1553B bus monitoring data, finishing data packaging processing according to a pulse per second signal sent by inertial navigation, and sending the data to a data loading recorder for storage;
a data loading recorder: the method comprises the steps of collecting and receiving audio data and video data, completing audio and video data packaging processing according to a pulse per second signal sent by inertial navigation, and collecting data processed by an electromechanical management computer and a backup parameter collector.
Preferably, the inertial navigation is used for sending satellite time and second pulse to the electromechanical management computer, the backup parameter collector and the data loading recorder, and satellite time information identification of various types of data is established uniformly after each device receives satellite time and second pulse signals sent by the inertial navigation.
Preferably, a uniform satellite time is used as the time scale.
The design principle is as follows: the processing device comprises two parts, namely an airborne multi-equipment multi-type data synchronous processing device and a ground multi-type data synchronous playback processing device, is used for realizing that each type of data acquired by each airborne equipment has time correlation, determining and analyzing correlation (namely time sequence relation generated by various data and events) among four kinds of data, namely flight parameter data, 1553B bus monitoring data, audio data and video data when data analysis is carried out, and has and establishes a time system of multi-type data, a time standard of a single parameter as a time function, time relation indication among several events in a data stream, time standards among events resident in different data streams and the like, and is used for flight comment, daily maintenance of an airplane, fault isolation of the airplane and the like.
Compared with the prior art, the invention has the following advantages:
1. the synchronous playback of data information can be effectively ensured, the related data and image information of key time periods or key moments can be comprehensively analyzed, the synchronous comment function of one or more airplanes is realized, and the flight efficiency evaluation level is improved;
2. the on-board flight parameter data, 1553B bus monitoring data, audio data and video data are synchronously played back, relevant data and image information of a key time period or a key moment can be comprehensively analyzed, flight comment is facilitated, and a basis is provided for daily maintenance and fault isolation of the airplane;
3. the unified satellite time is used as a time scale, not only is the synchronous playback of multiple data sources of one airplane realized, but also the synchronous playback of multiple airplanes is realized, and the evaluation and evaluation work can be conveniently carried out by one formation.
Drawings
FIG. 1 is a cross-linking relationship and data flow diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a multi-source multi-type data synchronization time processing design according to an embodiment of the present invention;
fig. 3 is a diagram of a synchronized playback process according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying figures 1-3: a multi-source multi-type data playback device based on time synchronization comprises an airborne multi-device multi-type data synchronization processing device and a ground multi-type data synchronization playback processing device.
In this example, the specific implementation is as follows:
1. airborne multi-equipment multi-type data synchronous processing
Three different airborne devices (an electromechanical management computer, a backup parameter collector and a data loading recorder) respectively collect and receive four types of data of generated flight parameter data, 1553B bus monitoring data, audio data and video data, wherein the data collection information of each device is as follows:
1) an electromechanical management computer: collecting flight parameter data of a flight control computer, an inertial navigation system, the atmosphere, a fuel oil/hydraulic system and the like on a receiver, finishing data packing processing according to a pulse per second signal sent by the inertial navigation system, and sending the data to a data loading recorder for storage;
2) a backup parameter collector: receiving 1553B bus monitoring data, completing data packaging processing according to a pulse per second signal sent by inertial navigation, and sending the data to a data loading recorder for storage;
3) a data loading recorder: the method comprises the steps of collecting and receiving audio data and video data, completing audio and video data packaging processing according to a pulse per second signal sent by inertial navigation, and collecting data processed by an electromechanical management computer and a backup parameter collector. The storage of four types of data including flight parameter data, 1553B bus monitoring data, audio data and video data is realized.
The cross-linking relationship among the devices and the data streams of the types are shown in fig. 1.
As shown in FIG. 2, in order to achieve time synchronization of various types of data, time is provided to the acquisition equipment by Beijing time in a unified manner. The inertial navigation sends Beijing time and second pulse to the electromechanical management computer, the backup parameter collector and the data loading recorder, and after each device receives the Beijing time and second pulse signals sent by the inertial navigation, the Beijing time information identification of various types of data is established in a unified way. After the data loading recorder receives the Beijing time sent by the inertial navigation, audio data and video data are created according to the Beijing time, in order to reduce the time delay of bus transmission, the electromechanical management computer creates flight parameter data according to the Beijing time, and the backup parameter collector creates 1553B bus monitoring data according to the Beijing time.
6.2 ground Multi-type data synchronous playback processing
When the multi-source data is played back on the ground, in order to ensure the integration of data information synchronization and audio-visual, the multi-source data can be comprehensively and clearly combined to be checked and analyzed synchronously, and the design of synchronous playback of the flight parameter data, 1553B bus data, audio data and video data is needed.
The airborne equipment adds time information into the flight parameter data, 1553B bus monitoring data, audio data and video data, and the ground playback software arranges and aligns multi-source data according to the time information and performs synchronous playback processing of reports, curves, audios and multi-channel videos according to the time information which is added into the data of different types.
The specific synchronization mechanism is as follows: as shown in fig. 3, the ground playback software includes a flight parameter data playback module, a 1553B bus data playback module, an audio data channel, and a video data channel, and during the playback, selects a corresponding data type as needed, and selects the data or channel with the longest recording duration as a reference channel by calculating the start-stop time of data recording in each channel, and the other modules or channels passively receive a time scale from the reference channel and position their own playing schedules. The non-reference module or the channel regularly obtains the time scale of the reference channel, and the time scale is used for adjusting the self playing progress and reducing the accumulated error, so that the synchronous playback of the multi-source data is realized, and the random playing is supported. The synchronization mechanism can realize the synchronous playing of single video, single audio, audio and video, flight, 1553B data and audio and video.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and any extensions, changes, equivalents and the like made by those skilled in the art without departing from the essence of the present invention shall be included in the protection scope of the present invention.
Claims (5)
1. A multi-source multi-type data playback device based on time synchronization is characterized in that: the system comprises an airborne multi-equipment multi-type data synchronous processing device and a ground multi-type data synchronous playback processing device; the airborne multi-equipment multi-type data synchronous processing device is used for acquiring and receiving generated flight parameter data, 1553B bus monitoring data, audio data and video data; the ground multi-type data synchronous playback processing device is used for carrying out synchronous playback processing on reports, curves, audios and multi-channel videos after the multi-source data are sorted and aligned according to the time information put in by the different types of data.
2. The multi-source multi-type data playback apparatus based on time synchronization of claim 1, wherein: the recording devices in the airborne multi-device and multi-type data synchronous processing device are an electromechanical management computer, a backup parameter collector and a data loading recorder.
3. The multi-source multi-type data playback apparatus based on time synchronization of claim 2, wherein:
an electromechanical management computer: collecting flight parameter data of a flight control computer, inertial navigation, atmosphere and a fuel oil/hydraulic system on a receiver, finishing data packing processing according to a pulse per second signal sent by the inertial navigation, and sending the data to a data loading recorder for storage;
a backup parameter collector: receiving 1553B bus monitoring data, finishing data packaging processing according to a pulse per second signal sent by inertial navigation, and sending the data to a data loading recorder for storage;
a data loading recorder: the method comprises the steps of collecting and receiving audio data and video data, completing audio and video data packaging processing according to a pulse per second signal sent by inertial navigation, and collecting data processed by an electromechanical management computer and a backup parameter collector.
4. The multi-source multi-type data playback apparatus based on time synchronization of claim 3, wherein: the inertial navigation is used for sending satellite time and second pulse to the electromechanical management computer, the backup parameter collector and the data loading recorder, and all equipment uniformly establish satellite time information identification of various types of data after receiving satellite time and second pulse signals sent by the inertial navigation.
5. The multi-source multi-type data playback apparatus based on time synchronization of claim 1, wherein: the unified satellite time is used as a time scale.
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