CN106774274B - A kind of Portable self-propelled rocket gun servomechanism in situ detection instrument - Google Patents
A kind of Portable self-propelled rocket gun servomechanism in situ detection instrument Download PDFInfo
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- CN106774274B CN106774274B CN201710029311.4A CN201710029311A CN106774274B CN 106774274 B CN106774274 B CN 106774274B CN 201710029311 A CN201710029311 A CN 201710029311A CN 106774274 B CN106774274 B CN 106774274B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
Abstract
The invention discloses a kind of Portable self-propelled rocket gun servomechanism in situ detection instrument, including detection controller, data processing module, system management module, human-computer interaction module and fault diagnosis module；The data processing module and human-computer interaction module are connected with detection controller respectively, and detection controller is connected with system management module and fault diagnosis module.Present invention is mainly used for army's servomechanism check-up and servicing operations, can be with the working status of on-line quick detection servomechanism, and show testing result using graphic interface, servomechanism failure is found in time, greatly improve check-up efficiency, the requirement to correlation technique support personnel is reduced, avoids that accident occurs so as to cause heavy losses.
Description
Technical field
The present invention relates to a kind of Portable self-propelled rocket gun servomechanism in situ detection instrument, belongs to equipment Test technology neck
Domain, for quickly detecting the working status of self-propelled rocket launcher servomechanism.
Background technology
Servomechanism is the important component of self-propelled rocket launcher fire control system, its major function is according to fire control meter
Height that calculation machine is sent, the main order of orientation tune big gun, are automatically performed high-precision pitching tune big gun and orientation tune big gun, its performance directly affect from
The behaviour of row rocket gun takes aim at the gentle quick-reaction capability of Automated water.Since servomechanism the degree of automation is high, complicated, easy
Failure is produced, therefore to carry out effective technical guarantee to it very necessary for grassroots army unit.
Self-propelled rocket launcher servomechanism carries out 8 components of in situ detection：Comprehensive Control case, height driver, direction are driven
Dynamic device, height receiver, orientation receiver, electrical source of power case, upper dress intelligent distribution box and electrical management device, it is therefore desirable to
Dynamic system control power supply, sensor excited signal, driver electrical source of power, main make signal, interlocking signal state, driver shape
State, receiver output signal are detected.It is in situ due to lacking portable servomechanism in current army's technical guarantee practice
Detection device, it is necessary to corresponding Special experimental platform test-based examination will be utilized after each component dismounting of servomechanism in check-up,
And under the conditions of grassroots army unit, lack relevant device and place, it is difficult to implement；Servomechanism Special experimental platform is often by being servo-actuated
The commissioning device of system production factory converts, and not only volume is big, but also operates and do not meet army operating personnel with display interface
Custom, also heavy dependence associated specialist is explained and analyzed test result.
Each component of self-propelled rocket launcher servomechanism uses power supply different, and there are potential difference, letter between each reference ground
Number level range substantially exceed the input range of general capture card, combining single-ended capture card using all-purpose computer forms inspection
Instrument is surveyed, input requirements can not be adapted to；When being control signal detection to being servo-actuated, detection circuit cannot cause electricity to control signal
Gas influences, it is necessary to realizes electrical isolation.
Therefore, it is very necessary to develop the portable servo-actuated detector that a kind of suitable grassroots army unit personnel use.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies of the prior art and provide a kind of Portable self-propelled rocket gun with
Dynamic system in situ detection instrument.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of Portable self-propelled rocket gun servomechanism in situ detection instrument, including detect controller, data processing module, be
System management module, human-computer interaction module and fault diagnosis module；The data processing module and human-computer interaction module respectively with inspection
Survey controller to be connected, detection controller is connected with system management module and fault diagnosis module.
Further, the data processing module includes data acquisition module and Dynamic data display module；It is described man-machine
Interactive module includes detection prompt message module, detection information recording module and help information display module；The system administration
Module includes database processing module and report generation module；The fault diagnosis module includes diagnostic knowledge recording module and event
Hinder reasoning module.
Further, the data acquisition module includes a plurality of detection cable, digital signal modulate circuit, two simulation letters
Number modulate circuit and multi-function data acquisition card；The multi-function data acquisition card has digital I/O interface and AD acquisition interfaces；The detection
Controller uses embedded computer；One end of the detection cable is connected with the detection interface of each building block of servomechanism
Connect, the other end is connected with digital signal modulate circuit or two analog signal conditioner circuits, digital signal modulate circuit and two
A analog signal conditioner circuit is connected with digital I/O interface and AD acquisition interfaces respectively, and digital I/O interface and AD acquisition interface is equal
It is connected with embedded computer.
Further, the detection cable includes the control panel power supply that connection drives indoor Comprehensive Control case detection interface
Signal detection cable, the sensor excitation power supply test cable of the indoor Comprehensive Control case 3XS14 interfaces of connection driving, connection are comprehensive
Close the position control of the 3XS13 interfaces of control cabinet and status signal test cable, connection drive indoor electrical management device detection
Driving power, excitation power supply and the position of the Drive Status test cable of interface, junction box's 35XS1 interfaces in connection fight cabin
Put height, the orientation receiver test cable of control test cable and junction box's 35XS1 interfaces in connection fight cabin.
Further, the analog signal conditioner device is by resistance pressure-dividing network, difference type variable connector ADG509, precision
Voltage isolating chip ISO124 and light-coupled isolation control circuit TLP521 compositions；The digital signal conditioning device is by resistance net
Network, light-coupled isolation chip TLP521, Schmidt shaping chip 74HC14 and bus driver chip 74HC245 compositions；The insertion
The model PCM-9377F of formula computer, multifunctional data acquisition card model ART2933H.
Further, the embedded computer includes mainframe box, and the front panel of mainframe box is equipped with and embedding assembly
The LCD touch screen for man-machine interactive operation and 3 × 10 keyboard specials based on HT82K628A chips that machine is connected；Host
The rear panel of case is equipped with 6 cable sockets being connected with embedded computer：Power input socket CZ0,4 tunnel analog signals
Input socket CZ1,8 tunnel analog signal input socket CZ2,16 way switch amount input socket CZ3,4 road analog output sockets
CZ4,6 railway digital amount accessory power outlet CZ5.
Further, the in situ detection instrument further includes power module, and power module includes the power cord and DC- of Band clamp
D/C power, power cord are connected with DC-DC power source, DC-DC power source respectively with two analog signal conditioner circuits and embedding assembly
Machine is connected.
It is using beneficial effect caused by above-mentioned technical proposal：
The present invention can make control signal, interlock control signal, position to the main of 8 components of self-propelled rocket launcher servomechanism
The signals such as sensor, power supply carry out in situ detection, and testing result figureization is shown, can further realize data storage, report
Table generates and fault diagnosis., can be quick online present invention is mainly used in army's servomechanism check-up and servicing operations
The working status of servomechanism is detected, and testing result is shown using graphic interface, finds servomechanism failure in time, significantly
Develop skill and check efficiency, reduce the requirement to correlation technique support personnel, avoid that accident occurs so as to cause heavy losses.
, can be in field operation by the power cord of Band clamp present invention employs the DC-DC power source that input range reaches 7~40V
Under the conditions of detector realized using self-propelled rocket launcher storage battery or other vehicular power-bottles power, and realize tester and set with being tested
Stand-by power source electrical isolation；LCD touch screen is employed, with reference to designed PS2 keyboards, realizes Windows circle under field condition
The man-machine interactive operation in face；By resistance pressure-dividing network, difference type variable connector ADG509, accurate voltage isolating chip ISO124,
The analog signal conditioner device of the devices such as optical coupling isolator TLP521 composition, can not only treat 16-28~56V of tunnel of servomechanism
Analog signal linearly conditioning extremely -10~+10V analog signals are surveyed, and can prevent crosstalk occur between tester and equipment, are damaged
Equipment；The digital signal being made of devices such as resistance pressure-dividing network, optical coupling isolator TLP521, Bus Interface Chip 74LS245
16 road 0V of servomechanism ,+28V On-off signal signals, can be changed into the digital signal for meeting Transistor-Transistor Logic level by conditioning device.
Brief description of the drawings
Fig. 1 is the functional block diagram of the portable servomechanism detector of the present invention；
Fig. 2 is the principle composition frame chart of the portable servomechanism detector of the present invention；
Fig. 3 is the composition frame chart of the portable servomechanism detector of the present invention；
Fig. 4 is analog signal conditioner device block diagram of the present invention；
Fig. 5 is digital signal conditioning device block diagram of the present invention；
Fig. 6 is the front panel of mainframe box of the present invention；
Fig. 7 is the rear panel of mainframe box of the present invention.
Embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of Portable self-propelled rocket gun servomechanism in situ detection instrument of the present invention, including detection control
Device, data processing module, system management module, human-computer interaction module and fault diagnosis module；The data processing module and people
Machine interactive module is connected with detection controller respectively, and detection controller is connected with system management module and fault diagnosis module
Connect.
Detection controller is responsible for the management and co-ordination of each function module of detector, and human-computer interaction module provides simple side
Just operation interface, data processing module be used for complete each supply voltage of servomechanism, it is main make control signal, interlocked control letter
Number, the real-time collection and display of sensor output signal, system management module completes the life of database manipulation, report in detector
Into；Fault diagnosis module issuable reason and repairs help according to test result to being out of order.
As shown in Fig. 2, the data processing module includes data acquisition module and Dynamic data display module；It is described man-machine
Interactive module includes detection prompt message module, detection information recording module and help information display module；The system administration
Module includes database processing module and report generation module；The fault diagnosis module includes diagnostic knowledge recording module and event
Hinder reasoning module.
Data acquisition module and Dynamic data display module are respectively utilized to complete each supply voltage of servomechanism, main order control
The real-time collection and display of signal, interlock control signal, sensor output signal；Detect prompt message module, detection information record
Enter module and detection information prompting that help information display module is respectively utilized to complete in detection process, detection information typing and be
Unite help；Database processing module and report generation module are respectively used to the storage of each channel data and the analysis of historical data
Processing, curve are shown；Diagnostic knowledge recording module is used for the typing of diagnostic knowledge, and fault reasoning module is used to that failure may to be produced
The reason for raw, makes inferences analysis.
As shown in figure 3, data acquisition module includes a plurality of detection cable, digital signal modulate circuit, two analog signals
Modulate circuit and multi-function data acquisition card；The multi-function data acquisition card has digital I/O interface and AD acquisition interfaces；The detection control
Device processed uses embedded computer；One end of the detection cable is connected with the detection interface of each building block of servomechanism,
The other end is connected with digital signal modulate circuit or two analog signal conditioner circuits, digital signal modulate circuit and two moulds
Intend signal conditioning circuit be connected respectively with digital I/O interface and AD acquisition interfaces, digital I/O interface and AD acquisition interface with it is embedding
Enter formula computer to be connected.The in situ detection instrument further includes power module, and power module includes the power cord and DC- of Band clamp
D/C power, power cord are connected with DC-DC power source, DC-DC power source respectively with two analog signal conditioner circuits and embedding assembly
Machine is connected.
As shown in figure 4, the analog signal conditioner device is by resistance pressure-dividing network, difference type variable connector ADG509, essence
Cipher telegram presses isolating chip ISO124 and light-coupled isolation control circuit TLP521 compositions, can be by -28V~+56V, 0~1kHz scopes
Analog input signal is changed into the analog signal of -10V~+10V, and amplitude error is not more than ± 1%, and frequency error is not more than 2Hz, real
Isolating for tested servomechanism and test device is showed；As shown in figure 5, the digital signal conditioning device is by resistor network, light
Coupling isolating chip TLP521, Schmidt shaping chip 74HC14 and bus driver chip 74HC245 compositions, 16 tunnel low levels of Ke Jiang
0V, the On-off signal signal of high level+28V are changed into the digital signal that 8 tunnels meet Transistor-Transistor Logic level；The embedded computer
Model PCM-9377F, CPU are the AMDLX-800 of dominant frequency 500MHz, memory 512MDDRAM, 8GBCF card, video output interface
For VGA and LVTS, there is PC104 interfaces, strong environmental adaptability, has ensured whole system work high reliability；Multi-functional number
According to the model ART2933H types of capture card, its acquisition precision is 16, highest sampling rate 250kHz, there is provided 16 tunnels are single-ended/and 8
Road both-end analog input channel, input impedance 10M Europe, measurement accuracy 0.01%, 16 railway digital input channels, 16 railway digitals are defeated
Go out passage.Reach the DC-DC power source of 7~40V using input range, can be sharp under the conditions of field operation by the power cord of Band clamp
Detector is realized with self-propelled rocket launcher storage battery or other vehicular power-bottles and is powered, cannon vehicle power supply is transformed to by DC-DC power source
± 15V power supplys needed for analog signal conditioner device, and the electrical isolation of vehicle power supply and simulated modulation device is realized, protect
The safety of test equipment is hindered.
As shown in Figure 6,7, the embedded computer includes mainframe box, and the front panel of mainframe box is equipped with and embedded meter
What calculation machine was connected meets the 3 × 10 of PS2 agreements for the LCD touch screen of man-machine interactive operation and based on HT82K628A chips
Keyboard special, realizes the man-machine interactive operation at Windows interfaces under field condition；The rear panel of mainframe box is equipped with and insertion
6 cable sockets that formula computer is connected：Power input socket CZ0,4 tunnel analog signal input socket CZ1,8 tunnels simulation letter
Number input socket CZ2,16 way switch amount input socket CZ3,4 road analog output socket CZ4,6 railway digital amount accessory power outlets
CZ5。
Control panel power supply signal detection cable of the detection cable including the indoor Comprehensive Control case detection interface of connection driving,
Connection drives the sensor excitation power supply test cable of indoor Comprehensive Control case 3XS14 interfaces, connects Comprehensive Control case
The position control of 3XS13 interfaces and status signal test cable, connection drive the driving of indoor electrical management device detection interface
Driving power, excitation power supply and the position control test for junction box's 35XS1 interfaces that device state verification cable, connection are fought in cabin
Height, the orientation receiver test cable of cable and junction box's 35XS1 interfaces in connection fight cabin.
The present invention can to servomechanism control power supply, sensor excited signal, driver electrical source of power, it is main make signal,
Interlocking signal state, Drive Status, receiver output signal detection, are related to Comprehensive Control case, height driver, direction driving
8 device, height receiver, orientation receiver, electrical source of power case, upper dress intelligent distribution box, electrical management device components carry out in situ
Detection, detection process use touch screen operation, enhance the detectability under field condition, realize testing result figure and show
Show, detection data store automatically, auto report completing.
Claims (1)
- A kind of 1. Portable self-propelled rocket gun servomechanism in situ detection instrument, it is characterised in that：At detection controller, data Manage module, system management module, human-computer interaction module and fault diagnosis module；The data processing module and human-computer interaction module It is connected respectively with detection controller, detection controller is connected with system management module and fault diagnosis module；The data processing module includes data acquisition module and Dynamic data display module；The human-computer interaction module includes inspection Survey prompt message module, detection information recording module and help information display module；The system management module includes database Processing module and report generation module；The fault diagnosis module includes diagnostic knowledge recording module and fault reasoning module；The data acquisition module includes a plurality of detection cable, digital signal modulate circuit, 2 analog signal conditioner circuits and more Function capture card；The multi-function data acquisition card has digital I/O interface and AD acquisition interfaces；The detection controller is using insertion Formula computer；One end of the detection cable is connected with the detection interface of each building block of servomechanism, the other end and numeral Signal conditioning circuit or 2 analog signal conditioner circuits are connected, digital signal modulate circuit and 2 analog signal conditioner circuits It is connected respectively with digital I/O interface and AD acquisition interfaces, digital I/O interface and AD acquisition interface is connected with embedded computer Connect；Control panel power supply signal detection cable of the detection cable including the indoor Comprehensive Control case detection interface of connection driving, Connection drives the sensor excitation power supply test cable of indoor Comprehensive Control case 3XS14 interfaces, connects Comprehensive Control case The position control of 3XS13 interfaces and status signal test cable, connection drive the driving of indoor electrical management device detection interface Driving power, excitation power supply and the position control test for junction box's 35XS1 interfaces that device state verification cable, connection are fought in cabin Height, the orientation receiver test cable of cable and junction box's 35XS1 interfaces in connection fight cabin；The analog signal conditioner device is by resistance pressure-dividing network, difference type variable connector ADG509, accurate voltage isolating chip ISO124 and light-coupled isolation control circuit TLP521 compositions；The digital signal conditioning device is by resistor network, light-coupled isolation core Piece TLP521, Schmidt shaping chip 74HC14 and bus driver chip 74HC245 compositions；The model of the embedded computer For PCM-9377F, multifunctional data acquisition card model ART2933H；The embedded computer includes mainframe box, and the front panel of mainframe box is used for equipped with what is be connected with embedded computer The LCD touch screen of man-machine interactive operation and 3 × 10 keyboard specials based on HT82K628A chips；Set on the rear panel of mainframe box There are 6 cable sockets being connected with embedded computer：Power input socket CZ0,4 tunnel analog signal input socket CZ1,8 Road analog signal input socket CZ2,16 way switch amount input socket CZ3,4 road analog output socket CZ4,6 railway digital amounts are defeated Go out socket CZ5；The in situ detection instrument further includes power module, and power module includes the power cord and DC-DC power source of Band clamp, power cord It is connected with DC-DC power source, DC-DC power source is connected with two analog signal conditioner circuits and embedded computer respectively.
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| CN201710029311.4A CN106774274B (en) | 2017-01-16 | 2017-01-16 | A kind of Portable self-propelled rocket gun servomechanism in situ detection instrument |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109388095B (en) * | 2017-08-09 | 2023-10-31 | 中国石油化工股份有限公司 | Alarm diagnostic instrument for steam-injection boiler |
| CN107514988A (en) * | 2017-08-17 | 2017-12-26 | 福建省永正工程质量检测有限公司 | A kind of building structure Detection of Stability system |
| CN109297695B (en) * | 2018-10-15 | 2020-08-04 | 中国人民解放军陆军工程大学 | Follow-up device detector |
| CN110058580B (en) * | 2019-03-21 | 2022-01-14 | 南京砺剑光电技术研究院有限公司 | Novel wheel type self-propelled gun electrical system comprehensive diagnosis platform |
| CN110989553A (en) * | 2019-12-03 | 2020-04-10 | 北京特种机械研究所 | Performance test equipment for universal servo-actuated system |
| CN111665054A (en) * | 2020-05-22 | 2020-09-15 | 成都飞机工业（集团）有限责任公司 | Portable engine digital regulator detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359885Y (en) * | 2009-02-27 | 2009-12-09 | 上海金东线缆设备有限公司 | Cable intertwisting, doubling and meter counter device |
| CN203454922U (en) * | 2013-05-14 | 2014-02-26 | 中国人民解放军总装备部军械技术研究所 | Detector for cannon servo system |
| CN104330274A (en) * | 2014-10-25 | 2015-02-04 | 陕西玉航电子有限公司 | Portable fault detection system |
| CN204807973U (en) * | 2015-01-22 | 2015-11-25 | 程义 | A rocket gun follow -up signal and an accuse chronogenesis detector |
-
2017
- 2017-01-16 CN CN201710029311.4A patent/CN106774274B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359885Y (en) * | 2009-02-27 | 2009-12-09 | 上海金东线缆设备有限公司 | Cable intertwisting, doubling and meter counter device |
| CN203454922U (en) * | 2013-05-14 | 2014-02-26 | 中国人民解放军总装备部军械技术研究所 | Detector for cannon servo system |
| CN104330274A (en) * | 2014-10-25 | 2015-02-04 | 陕西玉航电子有限公司 | Portable fault detection system |
| CN204807973U (en) * | 2015-01-22 | 2015-11-25 | 程义 | A rocket gun follow -up signal and an accuse chronogenesis detector |
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