CN204831668U - Test platform to balanced wireless monitoring system calibration of wire rope tension - Google Patents
Test platform to balanced wireless monitoring system calibration of wire rope tension Download PDFInfo
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- CN204831668U CN204831668U CN201520558242.2U CN201520558242U CN204831668U CN 204831668 U CN204831668 U CN 204831668U CN 201520558242 U CN201520558242 U CN 201520558242U CN 204831668 U CN204831668 U CN 204831668U
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- wire rope
- steel wire
- rope tension
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- wireless monitor
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Abstract
The utility model provides a test platform to balanced wireless monitoring system calibration of wire rope tension mainly includes balanced wireless monitoring system of wire rope tension and calibrating device, wire rope tension is balanced, and wireless monitoring system includes host computer, the next machine, man -machine interface, calibrating device, including power device, cylinder, wire rope, hydraulic cylinder, leading wheel, wherein this power device is connected with this cylinder power, and this wire rope is nested in the friction lining of this cylinder and this leading wheel, and this power device of this control system connection and this leading wheel on this wire rope are established to this hydraulic cylinder cover.
Description
Technical field
The utility model relates to a kind of test platform, especially relates to a kind of test platform to the calibration of steel wire rope tension balance wireless monitor system.
Background technology
Multirope friction winder is by the lifting load weight of many wire rope shared skip buckets; in long-play process; cause tension imbalance due to each wire rope elastic deformation difference, first the wire rope of overtension produces fatigue breakdown, and corresponding friction lining also produces excessive wear.According to " safety regulations in coal mine " the 399th article regulation, in friction winding device, the load of arbitrary hoisting cable and the difference of average load must not exceed scholar 10%.Just hiding danger once exceed (namely unbalance), just major accident may occur as do not adjusted in time.Before this, colliery system can only according to existing safety regulations, and periodic shut down inspection adjusts or changes expensive wirerope.So not only affect normal coal production, cause again very large waste, the more important thing is and fundamentally can not ensure the safety that hoister runs.Therefore, the tension variation situation of each wire rope of Real-Time Monitoring becomes current very urgent task.
Sensor series method in existing steel wire rope tension contact measurement method, the steel wire rope tension be mainly used in elevator system is measured, that force cell is directly connected in series (according to the feature of lifting means with wire rope, its the most effective installation site is the junction at wire rope and hoisting conveyance), the tension force of measuring steel wire rope is then carried out by force cell and the secondary instrument that matches with it.Resistance-strain type of dynamometer sensor is arranged between hoisting conveyance wedge capping and wire rope, the shape of force cell flexible member is cylinder, flexible member produces strain under the effect of external force, utilize foil gauge to convert the change of resistance to this strain, recycling measuring bridge converts the change of resistance the change of voltage to and measures.
But in the process of Long-Time Service, the strain gauge element in wire rope and sensor all can produce wearing and tearing, causes the reduction of accuracy of detection.And can only test in the quiescent state, when not testing, pick-up unit must be dismantled or not stress, otherwise the damage of testing tool or precision will be caused to reduce, and whole test process is very complicated.And there is no the suitable test platform this type of being equipped with to the steel wire rope tension monitoring system calibration of sensor.
Because above-mentioned existing to steel wire rope tension monitoring system Problems existing, the present inventor is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of test platform to the calibration of steel wire rope tension balance wireless monitor system of new structure, existing Problems existing can be solved, make it have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the utility model had practical value.
Summary of the invention
The utility model provides a kind of test platform to the calibration of steel wire rope tension balance wireless monitor system, its technical matters solved is real-time radio monitoring steel wire rope tension data and can makes corresponding warning, display failure cause, record trouble data when faults such as steel wire rope tension imbalances, and calibrates final data.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions.
To a test platform for steel wire rope tension balance wireless monitor system calibration, it mainly comprises steel wire rope tension balance wireless monitor system and calibrating installation; Described steel wire rope tension balance wireless monitor system comprises host computer, slave computer, man-machine interface; Described host computer, wherein by radio communication circuit and slave computer wireless telecommunications, is sent data by TCP/IP/GRPS telecommunication agreement to RTU (remote terminal unit), is connected by port with man-machine interface; Described slave computer, comprise pressure transducer, pressure sensor signal line, data acquisition and emitter, wherein this pressure transducer is embedded in the friction lining of cylinder, this data acquisition and dispensing device are installed in drum shaft, and this pressure sensor signal line connects this pressure transducer and this data acquisition and dispensing device; Described man-machine interface, is installed in pulpit, is connected by port with host computer; And described calibrating installation, comprise propulsion system, cylinder, wire rope, hydraulic jack, angle sheave, control system, wherein these propulsion system are connected with this cylinder power, this wire rope is nested in the friction lining of this cylinder and this angle sheave, this hydraulic jack is set on this wire rope, and this control system connects these propulsion system and this angle sheave.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Preferably, the aforesaid test platform to the calibration of steel wire rope tension balance wireless monitor system, wherein this wire rope is equal with this hydraulic jack number, is the multiple of 4.
Preferably, the aforesaid test platform to the calibration of steel wire rope tension balance wireless monitor system, it is characterized in that wherein this data acquisition and emitter are integrated with signal conditioning circuit, A/D change-over circuit, microprocessor, information-storing device, arrange and status display circuit and radio communication circuit and power module, signal passes through circuit for signal conditioning successively, A/D change-over circuit, microprocessor, information-storing device, arrange and status display circuit and radio communication circuit and microprocessor signals transmitted in both directions, this power module connection data gathers and all parts in emitter.
Preferably, the aforesaid test platform to the calibration of steel wire rope tension balance wireless monitor system, wherein adopts powered battery in this power module.
Preferably, the aforesaid test platform to the calibration of steel wire rope tension balance wireless monitor system, is characterized in that wherein this host computer and this slave computer communication distance are less than 50 meters.
Preferably, the aforesaid test platform to the calibration of steel wire rope tension balance wireless monitor system, is characterized in that wherein this microprocessor is STM32C8T6 chip.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of test platform to the calibration of on-line monitoring many rope tensions balance device of the utility model at least has following advantages and beneficial effect:
The utility model test platform comprises steel wire rope tension balance wireless monitor system and calibrating installation.This steel wire rope tension balance wireless monitor system real-time radio is monitored steel wire rope tension data and can be made corresponding warning, display failure cause, record trouble data when faults such as steel wire rope tension imbalances, be convenient to maintenance personal and carry out timely fault diagnosis, Accident prevention occurs.This calibrating installation can be demarcated steel wire rope tension balance wireless monitor system accurately, and calibrating mode is easy, reliable, can test for a long time continuously, realizes unmanned and carries out fail-test.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic front view of calibrating installation of the present utility model;
Fig. 2 is calibrating installation schematic top plan view of the present utility model;
Fig. 3 is steel wire rope tension balance wireless monitor system slave computer device schematic diagram;
Fig. 4 is steel wire rope tension balance wireless monitor system structured flowchart.
[main element symbol description]
1: cylinder 2: hydraulic jack
3: wire rope 4: angle sheave
5: propulsion system 6: control system
7: friction lining 8: fixed block
9: briquetting 10: pressure transducer
11: pressure sensor signal line 12: data acquisition and dispensing device
21: host computer 211: radio communication circuit
23: man-machine interface 24: RTU (remote terminal unit)
22: slave computer 221: pressure transducer
222: signal conditioning circuit 223:A/D change-over circuit
224: microprocessor 225: information-storing device
226: arrange and status display circuit 227: radio communication circuit
Embodiment
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its embodiment of test platform to the calibration of on-line monitoring many rope tensions balance device, structure, method, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Refer to shown in Fig. 1, Fig. 2, the utility model is to the calibrating installation of the test platform of steel wire rope tension balance wireless monitor system calibration, comprise 1 propulsion system, 5,1 cylinder, 1,4 wire rope, 3,4 hydraulic jacks, 2,4 angle sheaves, 4,1 control system 6.Wherein these propulsion system 5 are connected with this cylinder 1 power, this wire rope 3 to be nested in the friction lining 7 of this cylinder 1 and winding by this angle sheave 4, this hydraulic jack 2 is set on this wire rope 3, and this control system 6 connects this propulsion system 5 and this angle sheave 4.
Described cylinder 1 adopts diameter to be 1.85 meters, and these 4 friction linings 7 are set on this cylinder 1, and 1 group of fixed block 8 and 2 groups of briquettings 9 are embedded in this friction lining 7 gap and compress this friction lining 7.
Refer to shown in Fig. 3, Fig. 4, the utility model, to the steel wire rope tension balance wireless monitor system of the test platform of steel wire rope tension balance wireless monitor system calibration, comprises host computer 21, slave computer 22, man-machine interface 23.
Described host computer 21, wherein by radio communication circuit 211 and slave computer wireless telecommunications, sends image data by TCP/IP/GRPS modular converter to RTU (remote terminal unit) 24;
Described slave computer 22, is mainly integrated with signal conditioning circuit 222, A/D change-over circuit 223, microprocessor 224, information-storing device 225, arranges and status display circuit 226 and radio communication circuit 227 and power module 228 in data acquisition and emitter 12.When this test platform starts by the pressure transducer 10 be embedded in the friction lining 7 of cylinder 1 gather electric signal by the pressure sensor signal line 11 that connects this pressure transducer 10 and this data acquisition and emitter 12 by electrical signal transfer to data acquisition and emitter 12.Electric signal converts electrical signals to digital data transmission to microprocessor 224 by this signal conditioning circuit 222 and A/D change-over circuit, arranges and status display circuit 226 and carry out the transmitted in both directions of data between radio communication circuit 227 and microprocessor 224.
Described man-machine interface 23, is installed in pulpit, is connected by port with host computer.Man-machine interface 23 issues host computer 21 acquisition, host computer 21 is pass on to slave computer 22 by radio communication circuit 211, slave computer 22 starts the collection of wire rope pressure data and related data is transferred to host computer 21 by radio communication circuit 227, they are transferred to man-machine interface 23 and show and storage by host computer 21 again, and host computer can send related data to RTU (remote terminal unit) 24 simultaneously.
Refer to Fig. 1 to Fig. 4, introduce the utility model one embodiment in detail.
Experiment work process to the test platform of steel wire rope tension balance wireless monitor system calibration:
(1) slave computer 22 steel wire rope tension being balanced wireless monitor system is arranged on test platform, this slave computer 22 comprises 4 pressure transducers 10 and is installed in friction lining 7, article 4, pressure sensor signal line 11 connects 4 pressure transducers 10 and 1 data acquisition and dispensing device 12 respectively, and this data acquisition and dispensing device 12 are installed in drum shaft.
(2) 4 wire rope 3 and 4 hydraulic jacks 2 are installed, hydraulic jack 2 are connected to Hydraulic Station (not indicating in figure), by pressure setting to designated value, afterburning to each hydraulic jack 2.The pressure of four hydraulic jacks 2 can be the same, also can difference to some extent.
(3) control propulsion system 5 head roll 1 by control system 6 to rotate, when hydraulic jack 2 reverses close to during cylinder 1, when hydraulic jack 2 rotates forward close to cylinder during angle sheave 41, back and forth run.
(4) Monitoring Data collection: cylinder 1 is in the process back and forth run, friction lining 7 with pressure transducer 10 on cylinder 1 rotates to below wire rope, pressure transducer 10 is stressed, along with pressure transducer 10 rotates to stressed maximum position until pressure transducer 10 does not stress leaves, then stressed being increased to by zero of pressure transducer 10 be maximumly reduced to zero.The data that pressure transducer 10 collects are transferred to through sensor signal lines 11 wireless communication line 211 that data acquisition and emitter 12 be transmitted into host computer 21 by radio communication circuit 227 and receive data.
(5) host computer data processing: after host computer 21 receives the data of 4 pressure transducers 10 collections by radio communication circuit 211, data are carried out computing as data storage, data scaling, historical data display, data and curves drafting etc. through software, host computer 21 screen shows and records 4 different stressed situations of wire rope 3 in operational process.
Calibration operation process to the test platform of steel wire rope tension balance wireless monitor system calibration:
(1) slave computer 22 steel wire rope tension being balanced wireless monitor system is arranged on test platform, this slave computer 22 comprises 4 pressure transducers 10 and is installed in friction lining 7, article 4, pressure sensor signal line 11 connects 4 pressure transducers 10 and 1 data acquisition and dispensing device 12 respectively, and this data acquisition and dispensing device 12 are installed in drum shaft.
(2) zero is demarcated as when not stressed by the pressure transducer 10 of host computer 21.
(3) 4 wire rope 3 and 4 hydraulic jacks 2 are installed, hydraulic jack 2 are connected to Hydraulic Station (not indicating in figure), by pressure setting to designated value, afterburning to each hydraulic jack 2.The pressure of four hydraulic jacks 2 can be the same, also can difference to some extent.
(4) control propulsion system 5 head roll 1 by control system 6 to rotate, pressure transducer 10 is rotated to maximum weighted position, the corresponding power of hydraulic jack 2 is demarcated in the data display that pressure transducer 10 gathers by host computer 21.
(5) hydraulic pressure transducer 10 is run to the position that do not stress.Hydraulic jack 2 connects Hydraulic Station and changes the power of hydraulic jack 2, pressure transducer 10 is run to maximum weighted position correction host computer 21 and shows the data and hydraulic jack 2 setting value that pressure transducer 10 gathers.
Carry out repeated loading different pressures to wire rope 3 to test, analyze the parameter of the required adjustment of steel wire rope tension balance wireless monitor system, steel wire rope tension balance wireless monitor system is calibrated.Start the continuous operation mode of the utility model test platform, steel wire rope tension balance wireless monitor system is carried out to the continuity test of 72 hours to verify the reliability of steel wire rope tension balance wireless monitor system.
Intend adopting parts selection, the selection of microprocessor: the microprocessor in notebook data collection and dispensing device 12 and main control MCU chip select STM32C8T6 chip.STM32C8T6 chip is 32 8-digit microcontrollers that STMicw Electronics releases, new range configuration to reach on 512KB sheet internal memory and enriches peripheral functionality, realize senior control, have low-power consumption and multiple power-saving working mode concurrently, possess and optimize the performance such as commercial unit, opertaing device, its development environment adopts standard kernel, can fully use numerous software and developing instrument, saves cost of development.
The selection of pressure transducer: the specific performance index of sensor: the selection of sensitivity; Frequency response characteristic; The range of linearity; Stability; Precision.
The selection of Wireless data transmission module: this steel wire rope tension balance wireless monitor system will be sent to host computer 21 by radio communication circuit 227 the data recorded, and host computer 21 and measure field are apart thought of as within the scope of 50m; In addition, because radio communication circuit 227 will be integrated in data acquisition and emitter 12, by the powered battery of power module 228, therefore require that its volume is little, low in energy consumption; Finally, it transmits the precision that data stabilization degree of accuracy just also can have influence on whole system, therefore requires that its transmission is stable.In view of above Consideration, this steel wire rope tension balance wireless monitor system selects XBEE series Wireless data transmission module to realize the design of the radio communication circuit in host computer and slave computer.
The design of mu balanced circuit: the pressure transducer 10 in slave computer 22, data acquisition and emitter 12 are battery-powered, and voltage range is 9V to 12V, there is the problem of voltage instability.Mu balanced circuit provides different burning voltages for different components and parts.In hardware system, each components and parts operating voltage is as follows: pressure transducer 10 adopts 10V, and radio communication circuit 211 adopts 5V, and C8051F350 single-chip microcomputer adopts 3.3V.
TCP/IP/GPRS modular converter adopts the conversion chip supporting GPRS/3G/4G communication mode, realizes being connected with main frame RS-45, by wireless network real-time transmission data function.
In above-mentioned steel wire rope tension balance wireless monitor system, host computer and slave computer are responsible for data acquisition, and be referred to as data acquisition system (DAS), the program design of this data acquisition system (DAS) comprises Programme Design of Master Machine Used and program of lower computer designs.Wherein, Programme Design of Master Machine Used carries out software programming for computing machine, and user realizes by operation computing machine: the functions such as data acquisition, data scaling, data storage, historical data display; Program of lower computer design is for C8051F330 mcu programming, the collection completing pressure signal, A/D conversion, data processing and data transport functions.Between upper and lower machine, adopt wireless communication data transmission, also need when upper and lower machine is programmed the setting carrying out associated communication agreement.
Above-mentioned Data Collection Software based mainly contain following some:
(1) measurement data of many sensors (multiples of 4) can be concentrated to an interface display, and there is calibration function, zero setting function.
(2) due to pressure transducer measurement output is nonlinear properties, and this software has non-liner revision function.Above-mentioned steel wire rope tension balance wireless monitor system is used to measuring steel wire rope tension, the wire rope of different-diameter uses same pressure transducer, therefore when different-diameter wire rope bears the pressure of formed objects, it is not identical that the signal magnitude exported measured by pressure transducer.Therefore require that software preserves different calibration coefficients when demarcating the wire rope of different-diameter, (that is: should have a wirerope diameter selectionbar when demarcating calibration, the calibration coefficient demarcated just is kept in corresponding wirerope diameter hurdle only corresponding calibration coefficient need to be selected to get final product according to the diameter of wire rope during measurement.The measurement interface of software should there is wirerope diameter select button, select the wire rope of different-diameter should import the calibration coefficient of this diameter wire rope).
(3) measurement data hold function, the data of preservation can export to Excel, for customer analysis, preservation, printing.When preserving measurement data, can automatically record Measuring Time, channel number, user can input remarks content (be used for discriminating measurement place, equipment under test etc.).
(4) software interface is friendly, and measurement data display window display numeral is clear and intuitive, the real-time display measurement value of each passage.
(5) TCP/IP or GPRS accessing Internet and remote terminal communication, transmit data functionality is possessed.
(6) software interface has communication deixis and bomp function.
The function that above-mentioned host computer procedure mainly realizes: data acquisition, data storage, data scaling, historical data display, data and curves are drawn, TCP/IP/GRPS telecommunication.According to functional requirement, carry out modeled programming.
The design of above-mentioned program of lower computer mainly realizes two large functions: 1, carry out A/D conversion and relevant treatment to signal measured by pressure transducer; 2, receive the data of host computer line number of going forward side by side reportedly to send and other operation.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1., to a test platform for steel wire rope tension balance wireless monitor system calibration, it is characterized in that it mainly comprises steel wire rope tension balance wireless monitor system and calibrating installation;
Described steel wire rope tension balance wireless monitor system comprises host computer, slave computer, man-machine interface;
Described host computer, wherein by radio communication circuit and slave computer wireless telecommunications, is sent data by TCP/IP/GRPS telecommunication agreement to RTU (remote terminal unit), is connected by port with man-machine interface;
Described slave computer, comprise pressure transducer, pressure sensor signal line, data acquisition and emitter, wherein this pressure transducer is embedded in the friction lining of cylinder, this data acquisition and dispensing device are installed in drum shaft, and this pressure sensor signal line connects this pressure transducer and this data acquisition and dispensing device;
Described man-machine interface, is installed in pulpit, is connected by port with host computer;
And described calibrating installation, comprise propulsion system, cylinder, wire rope, hydraulic jack, angle sheave, control system, wherein these propulsion system are connected with this cylinder power, this wire rope is nested in the friction lining of this cylinder and this angle sheave, this hydraulic jack is set on this wire rope, and this control system connects these propulsion system and this angle sheave.
2. the test platform to the calibration of steel wire rope tension balance wireless monitor system according to claim 1, it is characterized in that wherein this wire rope is equal with this hydraulic jack number, is the multiple of 4.
3. the test platform to the calibration of steel wire rope tension balance wireless monitor system according to claim 1, it is characterized in that wherein this data acquisition and emitter are integrated with signal conditioning circuit, A/D change-over circuit, microprocessor, information-storing device, arrange and status display circuit and radio communication circuit and power module, signal passes through circuit for signal conditioning successively, A/D change-over circuit, microprocessor, information-storing device, arrange and status display circuit and radio communication circuit and microprocessor signals transmitted in both directions, this power module connection data gathers and all parts in emitter.
4. the test platform to the calibration of steel wire rope tension balance wireless monitor system according to claim 3, is characterized in that wherein adopting powered battery in this power module.
5. the test platform to the calibration of steel wire rope tension balance wireless monitor system according to claim 1, is characterized in that wherein this host computer and this slave computer communication distance are less than 50 meters.
6. the test platform to the calibration of steel wire rope tension balance wireless monitor system according to claim 3, is characterized in that wherein this microprocessor is STM32C8T6 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520558242.2U CN204831668U (en) | 2015-07-29 | 2015-07-29 | Test platform to balanced wireless monitoring system calibration of wire rope tension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558242.2U CN204831668U (en) | 2015-07-29 | 2015-07-29 | Test platform to balanced wireless monitoring system calibration of wire rope tension |
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| CN204831668U true CN204831668U (en) | 2015-12-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021336A (en) * | 2015-07-29 | 2015-11-04 | 洛阳百克特摩擦材料有限公司 | Test platform for wire rope tension balance wireless monitoring system calibration |
| CN108534948A (en) * | 2018-04-02 | 2018-09-14 | 中国矿业大学 | A kind of on-line measuring device and method of mining pressure sensor |
| CN108891978A (en) * | 2018-07-24 | 2018-11-27 | 深圳市易美迅智能科技有限公司 | Roller bench |
| CN110553770A (en) * | 2019-07-17 | 2019-12-10 | 哈尔滨工程大学 | Fault diagnosis algorithm for large drift abnormal value of sensor of ship structure stress monitoring system |
| CN112612662A (en) * | 2020-12-18 | 2021-04-06 | 核工业理化工程研究院 | Communication reliability simulation test method for laser vibration-amplification chain serial port monitoring equipment |
| CN112783013A (en) * | 2019-11-08 | 2021-05-11 | 核工业理化工程研究院 | Remote control device and method for circulating dye pump system |
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2015
- 2015-07-29 CN CN201520558242.2U patent/CN204831668U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021336A (en) * | 2015-07-29 | 2015-11-04 | 洛阳百克特摩擦材料有限公司 | Test platform for wire rope tension balance wireless monitoring system calibration |
| CN105021336B (en) * | 2015-07-29 | 2018-03-30 | 洛阳百克特科技发展股份有限公司 | A kind of test platform to steel wire rope tension balance wireless monitor system calibration |
| CN108534948A (en) * | 2018-04-02 | 2018-09-14 | 中国矿业大学 | A kind of on-line measuring device and method of mining pressure sensor |
| CN108534948B (en) * | 2018-04-02 | 2019-12-03 | 中国矿业大学 | A kind of on-line measuring device and method of mining pressure sensor |
| CN108891978A (en) * | 2018-07-24 | 2018-11-27 | 深圳市易美迅智能科技有限公司 | Roller bench |
| CN110553770A (en) * | 2019-07-17 | 2019-12-10 | 哈尔滨工程大学 | Fault diagnosis algorithm for large drift abnormal value of sensor of ship structure stress monitoring system |
| CN110553770B (en) * | 2019-07-17 | 2021-03-26 | 哈尔滨工程大学 | Fault diagnosis method for large drift abnormal value of sensor of ship structure stress monitoring system |
| CN112783013A (en) * | 2019-11-08 | 2021-05-11 | 核工业理化工程研究院 | Remote control device and method for circulating dye pump system |
| CN112612662A (en) * | 2020-12-18 | 2021-04-06 | 核工业理化工程研究院 | Communication reliability simulation test method for laser vibration-amplification chain serial port monitoring equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 471000 Henan city of Luoyang province high tech Zone Heluo road and Wangchun Road intersection Patentee after: Luoyang BECOT technology development Limited by Share Ltd Address before: 471000 Henan city of Luoyang province high tech Zone Heluo road and Wangchun Road intersection in Luoyang Patentee before: Luoyang Becot Friction Materials Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20180330 |