CN109541642B - Multi-equipment data synchronous recording system - Google Patents
Multi-equipment data synchronous recording system Download PDFInfo
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- CN109541642B CN109541642B CN201811308817.XA CN201811308817A CN109541642B CN 109541642 B CN109541642 B CN 109541642B CN 201811308817 A CN201811308817 A CN 201811308817A CN 109541642 B CN109541642 B CN 109541642B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
Abstract
The invention provides a multi-equipment data synchronous recording system, which comprises a bottom data acquisition module and a main control module, wherein the bottom data acquisition module comprises a synchronous acquisition signal control module, a time system module and a data communication module which are sequentially connected, the time system module enables system time and satellite-guided time reference to be unified, and the synchronous acquisition signal control module sends external clock reference signals and system time signals to reference equipment and all test equipment; the data communication module is used for acquiring satellite navigation information, ship navigation information of the log, reference equipment data and data of test equipment to be tested, adding a time mark to generate a data packet and sending the data packet to the data analysis module; the data analysis module receives the data packet of the data communication module and analyzes the abnormal condition of the data packet of the data communication module to generate result data; therefore, the technical problems that the existing data recording device is lack of a multi-device synchronous data recording mechanism, the data recording instantaneity is not high, an interface forwarding device or other technical means is needed to provide guarantee, the number of accessible test devices is limited and the like are solved.
Description
Technical Field
The invention belongs to the field of data acquisition, and particularly relates to a multi-equipment data synchronous recording system.
Background
During the task execution period, the equipment can generate various information related to the task at each stage, such as a task plan, a command scheduling instruction, an external environment and the like on a command level, and information such as switching time, measurement data, an equipment working mode, a measurement object and the like on an equipment protection level, wherein the information can be automatically stored into an electronic document through electronic equipment and can also be manually recorded into a paper document.
With the development and requirements of equipment tests, competitive performance evaluation of multiple pieces of equipment of the same type gradually becomes a new application research hotspot. The existing equipment data acquisition device does not provide a synchronous acquisition mechanism, only receives the transmitted data of the equipment in real time, and marks each received data with a time mark. And then according to the time scale of the acquired data, finishing data alignment of the reference data and the data of the equipment to be tested in modes of interpolation, smoothing and the like, and calculating various performance index parameters of the equipment to be tested. The data acquisition mode has the following defects:
(1) due to the fact that the measurement time of the reference equipment and the measurement time of the reference equipment are asynchronous, time points of recorded data are not uniform, time is aligned through interpolation, smoothing and the like, and accuracy of performance index parameter calculation is affected;
(2) the complex conditions of invalid data, unreceived data, wrong and missing data information and the like of reference equipment and test equipment in the data acquisition process cannot be counted and recorded, so that the stability and reliability of data transmission of the test equipment in the test process cannot be evaluated;
(3) the test equipment needs ships to provide necessary auxiliary information in the test process, when the test equipment is more, the number of information channels provided by the test ships is limited, and the requirement that all the test equipment to be tested are connected simultaneously cannot be met, so that an information connection channel is often required to be provided for the test equipment by means of a special interface forwarding device or other technical means in the test process, the test cost is increased, the reliability is reduced, and the operation and the use are complicated;
(4) the available data channels of the existing equipment data recording device are limited and have no expansibility, and when the number of simultaneously connected test equipment to be tested exceeds the available data channels, only batch tests can be carried out, so that the problems of greatly increased test cost, obviously prolonged test time and the like are caused.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a multi-equipment data synchronous recording system, which enables the system time and the satellite navigation time reference to be unified through a time reference module and sends an external clock reference signal and a system time signal to reference equipment and all test equipment through a synchronous acquisition signal control module; the data communication module is used for acquiring satellite navigation information, ship navigation information of the log, reference equipment data and data of test equipment to be tested, adding a time mark to generate a data packet and sending the data packet to the data analysis module; the data analysis module receives the data packet of the data communication module and analyzes the abnormal condition of the data packet of the data communication module to generate result data; therefore, the technical problems that the existing data recording device is lack of a multi-device synchronous data recording mechanism, the data recording instantaneity is not high, an interface forwarding device or other technical means is needed to provide guarantee, the number of accessible test devices is limited and the like are solved.
In order to achieve the above object, according to one aspect of the present invention, there is provided a multi-device data synchronous recording system, which comprises a bottom data acquisition module and a main control module, wherein the bottom data acquisition module comprises a synchronous signal acquisition control module, a timing module and a data communication module which are connected in sequence, the main control module comprises a data analysis module, the data communication module is connected with the data analysis module, the synchronous signal acquisition control module and the data communication module are respectively connected with an external reference device and all test devices,
the time system module comprises a system clock, synchronizes the system clock by using external satellite navigation data and sends a system time signal to the synchronous acquisition signal control module;
the synchronous acquisition signal control module is used for receiving an externally input clock reference signal and a system time signal input by the time system module and sending the externally input clock reference signal and the system time signal to the reference equipment and all the test equipment;
the data communication module is used for acquiring satellite navigation information, ship navigation information of the log, reference equipment data and data of test equipment to be tested, adding a time mark to generate a data packet and sending the data packet to the data analysis module;
the data analysis module receives the data packet of the data communication module and analyzes the abnormal condition of the data packet of the data communication module to generate result data.
As a further improvement of the invention, the data communication module is also used for judging the integrity of the received data and the communication abnormal condition according to the protocol to generate the characteristic data.
As a further improvement of the invention, the communication abnormal condition comprises data invalidation and data information error and leakage of partial test equipment.
As a further improvement of the invention, the satellite navigation data transmitted by the time system module comprises a pulse per second signal and satellite navigation time information.
As a further improvement of the invention, the synchronous acquisition signal control module is provided with an internal synchronous mode, and can control the sending time and frequency of the synchronous acquisition signal according to an internal clock.
As a further improvement of the invention, the signal time delay between synchronous output channels of the synchronous acquisition signal control module is less than 15 ns.
As a further improvement of the invention, the main control module further comprises a display module and a data storage module, the display module, the data analysis module and the data storage module are sequentially connected, and the display module is used for setting the working mode of the multi-equipment data synchronous admission system, displaying the data processing progress and the processed data; the data storage module is used for storing original data and result data.
As a further improvement of the invention, the system is characterized in that the communication interface and the synchronous acquisition signal interface are respectively positioned at two sides of the case.
As a further improvement of the invention, the system is provided with a standby reference device data interface for use by a standby reference device.
As a further improvement of the invention, a plurality of multi-equipment data synchronous admission systems can realize cascade connection.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention relates to a multi-equipment data synchronous recording system, which enables system time and guard guide time reference to be unified through a time reference module, and sends an external clock reference signal and a system time signal to reference equipment and all test equipment through a synchronous acquisition signal control module; the data communication module is used for acquiring satellite navigation information, ship navigation information of the log, reference equipment data and data of test equipment to be tested, adding a time mark to generate a data packet and sending the data packet to the data analysis module; the data analysis module receives the data packet of the data communication module and analyzes the abnormal condition of the data packet of the data communication module to generate result data; therefore, the technical problems that the existing data recording device is lack of a multi-device synchronous data recording mechanism, the data recording instantaneity is not high, an interface forwarding device or other technical means is needed to provide guarantee, the number of accessible test devices is limited and the like are solved.
According to the multi-equipment data synchronous recording system, the signal time delay among all synchronous output channels of the synchronous acquisition signal control module is less than 15ns, a basis is provided for synchronous acquisition of all pieces of equipment to be tested, and the problem of synchronization of test data acquisition of multiple pieces of equipment is solved.
According to the multi-equipment data synchronous admission system, the data communication module is also used for judging the integrity of received data and abnormal communication conditions according to the protocol to generate characteristic data, and the synchronous acquisition signal control module can control the sending time and frequency of synchronous acquisition signals according to the internal clock, so that the real-time performance and the accuracy of the acquired data are guaranteed, and a complete data packet received by experimental equipment participating in test can be automatically generated aiming at the abnormal communication problem, and the subsequent unified data processing is facilitated.
According to the multi-equipment data synchronous recording system, satellite navigation data sent by the time system module comprises the pulse per second signal and satellite navigation time information, so that time synchronization based on satellite navigation is realized.
The multi-equipment data synchronous recording system can set a working mode to realize cascade connection of a plurality of systems, realize a cascade working mode of a plurality of synchronous recording devices, expand the number of connectable equipment, and is suitable for a plurality of data synchronous recording devices used in a synchronous performance evaluation test of the same type of equipment so as to solve the problem generated in the performance evaluation test of large-scale equipment.
Drawings
FIG. 1 is a schematic diagram of a multi-device data synchronous recording system according to the present invention;
fig. 2 is a schematic structural diagram of a cascade of a multi-device data synchronous admission system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
Fig. 1 is a schematic structural diagram of a multi-device data synchronous recording system according to the present invention. As shown in fig. 1, the system includes a bottom layer data acquisition module and a main control module, wherein the bottom layer data acquisition module includes a synchronous acquisition signal control module, a timing module and a data communication module which are connected in sequence; the main control module comprises a display module, a data analysis module and a data storage module which are connected in sequence; the data communication module is connected with the data analysis module; the synchronous acquisition signal control module and the data communication module are respectively connected with external reference equipment and all test equipment;
the system comprises a time system module, a clock synchronization module and a clock synchronization module, wherein the time system module comprises a system clock, and the system clock and a satellite-guided time reference are unified by utilizing externally input satellite-guided time information and a time service pulse signal; the time synchronization module receives the second pulse time service signal and the satellite navigation system satellite navigation time information, so that the system time reference is unified into the satellite navigation time reference, and the time service of a local system is realized.
The synchronous acquisition signal control module is used for receiving an externally input clock reference signal and a system time signal input by the time system module and sending the externally input clock reference signal and the system time signal to the reference equipment and all the test equipment; when the satellite-guided clock signal is not accessed, the synchronous acquisition signal control module can also control the sending time and frequency of the synchronous acquisition signal according to the internal clock so as to realize that the synchronous acquisition signal is sent by using a local frequency reference when the external clock signal is not used, wherein the signal time delay among synchronous output channels is less than 15ns, the synchronous acquisition signal control module provides a basis for the synchronous acquisition of all the test equipment data, and the synchronous problem of the test data acquisition of a plurality of devices is solved.
The data communication module is used for collecting navigation information of ships such as satellite navigation, log and the like, and is also used for finishing communication control with reference equipment and test equipment. The data communication module CAN realize the RS422 serial port data communication of 16 channels through controlling the serial port, the network port, the USB and the CAN, CAN receive carrier information and forward the carrier information to the test equipment to be tested at the same time, and solves the problem of auxiliary information access of synchronous working of multiple equipment. A log is a navigation device for measuring the speed of a ship and accumulating the voyage.
The data communication module is also used for judging the integrity of received data according to a protocol, automatically generating characteristic data aiming at communication abnormal conditions such as invalid data of part of test equipment, error and leakage of data information and the like, and adding a time mark for the acquired data in real time to form a complete received data packet and sending the complete received data packet to the data analysis module. The characteristic data in the data packet reflects and records the abnormal condition of data communication of the connected equipment so as to be processed by the data analysis module.
The bottom data acquisition module completes the response and sending of synchronous acquisition signals, data channel control, navigation information acquisition port control and interface control of CAN, NET, USB and the like, responds to control instructions of a control display terminal through a TCP/IP protocol and sends the acquired data in real time; the main control module adopts an industrial personal computer platform, and a user realizes the control of the bottom data acquisition module through control software and displays the acquired data in real time; wherein, the bottom data acquisition module realizes stable power supply through the UPS power supply box.
The multi-equipment data synchronous recording system has an extensible cascade working mode and an independent working mode. Under the independent working mode, the bottom data acquisition module CAN adopt an ARM + FPGA scheme to realize interface management of serial ports, network ports, USB, CAN and synchronous input signals, the synchronous acquisition signal control module and the time system module are realized through FPGA design, the data communication module CAN be realized through ARM design, and meanwhile, the interface management of the data communication module on the network ports, USB, CAN and synchronous input signals is realized. By adopting the ARM + FPGA scheme, the real-time performance and the accuracy of the collected data are guaranteed, and the complete data packet received by the experimental equipment participating in the test can be automatically generated aiming at the problem of communication abnormity, so that the subsequent unified data processing is facilitated.
The multi-equipment data synchronous recording system comprises a UPS power box, a bottom data acquisition module and a main control module, wherein the bottom data acquisition module completes the response and transmission of synchronous acquisition signals, data channel control, navigation information acquisition port control and interface control of CAN, NET, USB and the like, responds to control instructions of a control display terminal through a TCP/IP protocol and transmits the acquired data in real time; the main control module adopts an industrial personal computer platform, and a user finishes control with a bottom data acquisition platform through control software and displays acquired data in real time; the UPS power box realizes stable power supply.
The main control module adopts an industrial personal computer platform and is used for completing functions of control instruction input, equipment data display and storage and the like, and the main control module comprises a display module, a data analysis module and a data storage module. The display module is used for setting the working mode of the system, so that the processing and communication control of information are influenced, and the display module can also display the data processing progress and the processed data. And the data analysis module completes the receiving of the data sent by the bottom data C acquisition platform, analyzes and analyzes the received data packet, judges and processes abnormal conditions to generate result data. The data storage module is used for storing the original data and the result data.
Fig. 2 is a schematic structural diagram of a cascade of a multi-device data synchronous admission system according to the present invention. As shown in fig. 2, when the multi-device data synchronous recording system is in the cascade operation mode, the data analysis module of the host of the multi-device data synchronous recording system directly sends the received reference device and ship navigation information to the data analysis module of the slave through the network, and the data analysis module of the slave completes the processing of the reference device and the ship navigation information, thereby realizing the copying and transmission of the reference device and the ship navigation information, and further realizing the expansion of the connection channel of the reference device and the test-involved equipment. Under the cascade working mode, the multi-equipment data synchronous admission system can realize data communication between two or more systems, so that the multi-equipment data synchronous admission system synchronously has the condition and the capability of connecting the reference equipment, and the expansion of the number of connectable equipment channels is realized.
As a preferred embodiment, the multi-device data synchronous recording system of the present invention has the communication interface and the synchronous acquisition signal interface separately disposed on two sides of the chassis, so as to facilitate the mechanical connection of the interfaces, and the rear panel is not provided with any connection interface, so as to facilitate the overhaul and heat dissipation.
In a preferred embodiment, the multi-equipment data synchronous recording system is provided with a reference equipment data interface and a standby reference equipment data interface for standby reference equipment.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A multi-equipment data synchronous recording system comprises a bottom data acquisition module and a main control module, wherein the bottom data acquisition module comprises a synchronous acquisition signal control module, a time system module and a data communication module which are sequentially connected, the main control module comprises a data analysis module, the data communication module is connected with the data analysis module, the synchronous acquisition signal control module and the data communication module are respectively connected with external reference equipment and all test equipment, and the system is characterized in that,
the time system module comprises a system clock, and synchronizes the system clock by using external satellite navigation data and sends a system time signal to the synchronous acquisition signal control module;
the synchronous acquisition signal control module is used for receiving an externally input clock reference signal and a system time signal input by the time system module and sending the externally input clock reference signal and the system time signal to the reference equipment and all the test equipment; the device is also used for controlling the sending time and frequency of the synchronous acquisition signal according to the internal clock when the guard pilot clock signal is not accessed so as to realize that the synchronous acquisition signal is sent by using the local frequency reference when the external clock signal is not used;
the data communication module is used for acquiring satellite navigation information, ship navigation information of the log, reference equipment data and data of test equipment to be tested, adding a time mark to generate a data packet and sending the data packet to the data analysis module;
and the data analysis module receives the data packet of the data communication module and analyzes the abnormal condition of the data packet of the data communication module to generate result data.
2. The system of claim 1, wherein the data communication module is further configured to determine integrity of received data and communication abnormality according to a protocol to generate the feature data.
3. The system of claim 2, wherein the communication anomalies include data invalidation and data information missing for some pieces of test equipment.
4. The system of claim 1, wherein the satellite navigation data transmitted by the timing module includes a pulse per second signal and satellite navigation time information.
5. The system of claim 1, wherein the synchronous acquisition signal control module is configured with an internal synchronization mode, and the synchronous acquisition signal control module controls the timing and frequency of the synchronous acquisition signal according to an internal clock.
6. The system of claim 5, wherein the signal time delay between each synchronous output channel of the synchronous acquisition signal control module is less than 15 ns.
7. The multi-equipment data synchronous admission system of claim 1, wherein the master control module further comprises a display module and a data storage module, the display module, the data analysis module and the data storage module are sequentially connected, and the display module is used for setting the working mode of the multi-equipment data synchronous admission system, displaying the data processing progress and the processed data; the data storage module is used for storing original data and result data.
8. The system of claim 1, wherein the system further comprises a communication interface and a synchronous acquisition signal interface respectively disposed on two sides of the housing.
9. The system of claim 1, wherein the system is configured with a backup reference device data interface for use with a backup reference device.
10. The system for synchronized recording of multiple device data as claimed in any one of claims 1-9, wherein the system is configurable to operate in a cascade of multiple systems.
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| CN110286580B (en) * | 2019-04-27 | 2020-12-29 | 中国人民解放军海军工程大学 | Time service method for synchronous seamless connection of optical fiber and wireless time service timekeeping |
| CN111934808B (en) * | 2020-09-17 | 2021-02-02 | 中国航空制造技术研究院 | Multi-actuator coordination control system and method based on high-precision time service network |
| CN114001892B (en) * | 2021-10-28 | 2023-12-05 | 北京机电工程研究所 | Time synchronization method between free jet test measurement systems |
| CN114189306B (en) * | 2021-12-03 | 2024-03-12 | 中国国家铁路集团有限公司 | Data synchronization system, method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184624A (en) * | 2011-03-11 | 2011-09-14 | 湖南五舟检测科技有限公司 | Wireless synchronous sampling method and sampling system for vibrating data |
| CN106712880A (en) * | 2015-11-12 | 2017-05-24 | 上海远景数字信息技术有限公司 | Communication management system |
| CN107577626A (en) * | 2017-09-04 | 2018-01-12 | 苏州军盾科技有限公司 | A kind of synchronous data collection device based on the Big Dipper, method and system |
-
2018
- 2018-11-05 CN CN201811308817.XA patent/CN109541642B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184624A (en) * | 2011-03-11 | 2011-09-14 | 湖南五舟检测科技有限公司 | Wireless synchronous sampling method and sampling system for vibrating data |
| CN106712880A (en) * | 2015-11-12 | 2017-05-24 | 上海远景数字信息技术有限公司 | Communication management system |
| CN107577626A (en) * | 2017-09-04 | 2018-01-12 | 苏州军盾科技有限公司 | A kind of synchronous data collection device based on the Big Dipper, method and system |
Non-Patent Citations (2)
| Title |
|---|
| 基于LXI的导航装备测试系统同步测试方法;胡欣等;《传感器与仪器仪表》;20070731;第1-3节、图1 * |
| 潜艇真航向测量系统;许江宁等;《中国惯性技术学报》;20050630;引言，2.2节，3.1节 * |
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