CN105241370A - Cubic press health monitoring method and system - Google Patents

Cubic press health monitoring method and system Download PDF

Info

Publication number
CN105241370A
CN105241370A CN201510674673.XA CN201510674673A CN105241370A CN 105241370 A CN105241370 A CN 105241370A CN 201510674673 A CN201510674673 A CN 201510674673A CN 105241370 A CN105241370 A CN 105241370A
Authority
CN
China
Prior art keywords
strain
module
signal
hydraulic press
microprocessor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510674673.XA
Other languages
Chinese (zh)
Other versions
CN105241370B (en
Inventor
张应红
马亮
罗则栋
龚雨斌
马祥龙
卢北华
黄智聪
谢广欢
唐焱
唐亮
杨孟杰
徐晋勇
王岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guilin University of Electronic Technology
Original Assignee
Guilin University of Electronic Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guilin University of Electronic Technology filed Critical Guilin University of Electronic Technology
Priority to CN201510674673.XA priority Critical patent/CN105241370B/en
Publication of CN105241370A publication Critical patent/CN105241370A/en
Application granted granted Critical
Publication of CN105241370B publication Critical patent/CN105241370B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention proposes a cubic press health monitoring method and system. The monitoring system comprises a power management module, a signal processing module and a remote control monitoring module which are serially connected. The signal processing module comprises a strain detection module, a signal conditioning module, a microprocessor, a storage module and a wireless data transmission module; the strain detection module comprises a strain collection sheet, a bridge-type compensation circuit, and an electronic switch; the signal conditioning module comprises a passage amplifier, a filter and an A/D converter; The remote control monitoring module is arranged in a remote monitoring room and acquires the test data through the wireless data transmission module. The aim of online health monitoring of cubic presses is achieved based on an electrical strain measuring method and modern wireless transmission technology. The cubic press health monitoring system can accurately acquire weak strain signal data, has the functions of online monitoring and real-time display and recording of equipment usage status, and can predicate the fatigue life of equipment in actual work conditions, thereby preventing great and malignant accidents and reducing losses.

Description

Cubic hydraulic press health monitor method and system
Technical field:
The present invention relates to cubic hydraulic press monitoring field, particularly a kind of cubic hydraulic press health monitor method and system.
Background technology:
Cubic hydraulic press is the extra-high tension unit of synthesizing superhard material and goods thereof, be mainly used in and manufacture man-made diamond, the monocrystalline of cubic boron nitride and glomerocryst, and synthesize processing and the production in the superhard material such as polycrystalline diamond, polycrystalline cubic boron nitride compound sheets field, working pressure is up to 100MPa.In the hydropress course of work, the impact that its hydraulic-driven part (piston, plunger) commutation and release produce, affect the normal work of equipment, so long-time, regular reciprocation cycle load application, very easily make the fatigue damage of cubic hydraulic press stress concentration point (as hinge beam, working cylinder, hanger stress carrying key point), to crack time serious, even directly cause equipment failure, cause personal injury and economic loss.Therefore, carry out the real time health monitoring of stress concentration point in cubic hydraulic press operation process, correctly effectively disclose the generation of incipient fault, development, can provide accurately for maintenance management, reliable foundation,
Summary of the invention
The technical problem to be solved in the present invention is do not possess on-line monitoring and instant protective capability for above-mentioned prior art, be difficult to the defect of satisfied intelligent cubic hydraulic press health monitoring reliability requirement, and provides that a kind of accuracy of detection is high, efficiency is high, possess on-line monitoring and instant protective capability, the cubic hydraulic press health monitor method that can meet intelligent cubic hydraulic press health monitoring reliability requirement and system.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of cubic hydraulic press health monitoring systems, comprising: power management module, the signal processing module be connected with power management module and the remote monitoring module be connected with signal processing module; Wherein:
Power management module provides power supply by industrial alternating current, and by power supply revolving die block and voltage-reference conversion, obtaining reliable and stable circuit voltage is that signal processing module is powered;
Signal processing module comprises microprocessor and the strain detecting module, Signal-regulated kinase, memory module and the wireless data transfer module that are connected with microprocessor respectively; Strain detecting module is connected with Signal-regulated kinase, and strain detecting module comprises the strain acquirement sheet, bridge-type compensating circuit, the electronic switch that are connected; Signal-regulated kinase comprises the channel amplifier, wave filter and the A/D converter that are connected;
Remote monitoring module comprises upper computer software, display, storer and printer.
The single armed half-bridge circuit that the working strain gauge that described bridge-type compensating circuit is temperature compensation sheet, High Precision Low Temperature floats resistance and multiple foil gauge is formed in parallel connects to form; Each foil gauge of working strain gauge is connected with described electronic switch, form the faint strain signal acquisition zone of hyperchannel, the duty of each passage is controlled by electronic switch, the electricity after stream is expanded as bridge power supply by voltage-reference by triode in the faint strain signal acquisition zone of each hyperchannel, and is welded on and makes thickness on the strain acquirement sheet of 0.2 ~ 3mm by 35GrMo.
Described strain acquirement sheet is made up of material 35GrMo identical with cubic hydraulic press, thickness 0.2 ~ 3mm, is sticked at cubic hydraulic press stress concentrated position, with cubic hydraulic press area of stress concentration, corresponding strain occurs.
Described voltage-reference and bridge-type compensating circuit input end expand to flow by triode and are connected; The each working strain gauge of bridge-type compensating circuit and electronic switch input end pass through connection; Electronic switch output terminal is linked in sequence by microprocessor I/O mouth and channel amplifier, wave filter, A/D converter.
Described microprocessor and strain detecting module, Signal-regulated kinase, memory module and wireless data transfer module pass through connection;
Described strain detecting module is attached to cubic hydraulic press stress concentrated position by described strain acquirement sheet; Power management module and signal processing module are by connection, and remote monitoring module is communicated by wireless data transfer module with signal processing module.
Single-chip microcomputer selected by described microprocessor, memory module selects SD card, display selects LCD display, voltage-reference adopts MAX6175, wireless data transfer module adopts GPRS module, and electronic switch adopts CD4053, and channel amplifier adopts precision instrument amplifier INA114, wave filter adopts RC wave filter, and A/D converter adopts hyperchannel, high precision 24 AD7710 conversion chips.
The method utilizing cubic hydraulic press health monitoring systems of the present invention to monitor, comprises the steps:
(A) initialization cubic hydraulic press health monitoring systems;
(B) strain detecting module acquires often organizes the faint strain signal of corresponding working strain gauge test point on strain acquirement sheet, and is converted to the voltage signal controlled within the scope of certain error;
(C) voltage signal is carried out gain, filtering, conversion by Signal-regulated kinase, and then Microprocessor S3C44B0X memory module stores data, control electronic switch switching simultaneously and often organize the corresponding service aisle of described strain acquirement sheet, return step (B) executable operations, circulation is gone down successively;
(D) memory module data are read in the timing of microprocessor controls wireless data transfer module, are sent to remote monitoring module and wait for timing reading next time;
(E) remote monitoring module is set up wide area by privately owned fixed ip address with described wireless data transfer module and is connected, and carries out data-signal, control signal communication; Receive data, analyze data, store data, simultaneously according to Plotting data passage strain-time history curve map and print analysis result by printer;
(E1) upper computer software is according to data signal analysis equipment use situation and prediction actual condition fatigue lifetime, memory data signal and analysis result.LCD display display channel strain-time history curve map is worth with expection fatigue lifetime simultaneously;
(E2) upper computer software is according to data in passage strain-time history curve map, and contrast sets strain threshold, frequently loads frequency threshold value; If passage strain value is greater than setting strain threshold, then carry out step (E3), remote monitoring module stores this passage strain value and time simultaneously, and send strain feedback signal by wireless data transfer module to microprocessor, microprocessor performs the first alarm; If passage strain value is less than strain threshold, then returns step (E) and perform;
(E3) passage strain value is greater than strain threshold, then upper computer software is drawn and loaded number of times-time history curve map; If loading number of times is greater than setting and frequently loads frequency threshold value, then remote monitoring module stores this loading number of times-time history plot analyses result, and sending frequent loading number of times feedback signal by wireless data transfer module to microprocessor, microprocessor performs the second alarm; If passage strain value is less than setting frequently load frequency threshold value, then returns step (E) and perform.
Cubic hydraulic press health monitor method of the present invention and system, there is following beneficial effect: the data that can obtain faint strain signal accurately and fast, to possess in on-line monitoring, in real time display recording unit behaviour in service, prediction actual condition equipment fatigue lifetime, online send feedback signal and for equipment research and development unit provide due to user frequently transship, high-frequency uses equipment and causes device damage to require the foundation of research and development unit reparation associated loss, effectively avoids the extra loss researching and developing unit.
Accompanying drawing illustrates:
Fig. 1 is system architecture schematic diagram in cubic hydraulic press health monitoring systems of the present invention embodiment;
Fig. 2 is strain acquirement chip architecture figure in described embodiment;
Fig. 3 is strain detecting module concrete structure schematic diagram in described embodiment;
Fig. 4 is method flow diagram in described embodiment.
In figure, 1. power management module 2. signal processing module 3. remote monitoring module 4. industrial alternating current 5. voltage transformation module 6. voltage-reference 7. strain detecting module 8. Signal-regulated kinase 9. microprocessor 10. memory module 11. wireless data transfer module 12. upper computer software 13. display 14. storer 15. printer 16. electronic switch 17. channel amplifier 18. wave filter 19.A/D converter 20. strain acquirement sheet 21. bridge-type compensating circuit;
1 ~ n district: the faint strain signal acquisition zone of hyperchannel;
R 11~ Rn 1, R 12~ Rn 2, R 13~ Rn 3, R 14~ Rn 4: working strain gauge;
R 2: temperature compensation sheet R 3, R 4: High Precision Low Temperature drift resistance R e: emitter resistance;
U: bridge input voltage Uo: bridge output voltage.
Embodiment:
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In cubic hydraulic press health monitor method of the present invention and system embodiment, the structural representation of its cubic hydraulic press health monitoring systems as shown in Figure 1.In Fig. 1, this cubic hydraulic press health monitoring systems comprises: power management module 1, signal processing module 2, remote monitoring module 3; Power management module 1 provides power supply by industrial alternating current 4, is changed by power supply revolving die block 5 and voltage-reference 6, and obtaining reliable and stable circuit voltage is that signal processing module 2 is powered; Signal processing module 2 comprises strain detecting module 7, Signal-regulated kinase 8, microprocessor 9, memory module 10 and wireless data transfer module 11; Strain detecting module 7 comprises strain acquirement sheet 20, bridge-type compensating circuit 21, electronic switch 16; Signal-regulated kinase 8 comprises channel amplifier 17, wave filter 18 and A/D converter 19; Remote monitoring module 3 comprises upper computer software 12, display 13, storer 14 and printer 15.
Described voltage-reference 6 and described bridge-type compensating circuit 21 input end expand to flow by triode and are connected; The each working strain gauge of described bridge-type compensating circuit 21 and described electronic switch 16 input end pass through connection; Described electronic switch 16 output terminal by the I/O mouth of described microprocessor 9 be linked in sequence described channel amplifier 17, wave filter 18, A/D conversion/19; Described microprocessor 9 passes through connection with described strain detecting module 7, Signal-regulated kinase 8, memory module 10 and wireless data transfer module 11; Described strain detecting module 7 is attached to cubic hydraulic press stress concentrated position by described strain acquirement sheet 20; Power management module 1 and signal processing module 2 are by connection, and remote monitoring module 3 is communicated by described wireless data transfer module 11 with signal processing module 2.
In the present embodiment, specifically, single-chip microcomputer selected by described microprocessor 9, and memory module 10 selects SD card, and wireless data transfer module 11 selects GPRS module, display 13 selects LCD display, voltage-reference 6 adopts MAX6175, and electronic switch 16 adopts CD4053, and channel amplifier 17 adopts INA114, wave filter 18 adopts RC wave filter, and A/D converter 19 adopts hyperchannel, high precision 24 AD7799 conversion chips.
In the present embodiment, specifically, in figs. 2 and 3, described bridge-type compensating circuit 21 is temperature compensation sheet R 2, High Precision Low Temperature drift resistance R 3, R 4and the single armed half-bridge circuit that the working strain gauge that is formed in parallel of multiple foil gauge connects to form.Each foil gauge of described working strain gauge is connected with described electronic switch 16, forms 1 ~ n district, the faint strain signal acquisition zone of hyperchannel, is controlled the duty of each passage by described electronic switch 16.1 ~ n district, each hyperchannel faint strain signal acquisition zone expands the electricity after stream as bridge power supply by described voltage-reference 6 by triode, and be pasted onto and make thickness on the strain acquirement sheet 20 of 0.2 ~ 3mm by 35GrMo, on described strain acquirement sheet, 20 are welded on cubic hydraulic press stress concentrated position, with cubic hydraulic press area of stress concentration generation corresponding deformation.
The invention still further relates to a kind of cubic hydraulic press health monitor method, its process flow diagram as shown in Figure 4.In Fig. 1 to Fig. 4, this cubic hydraulic press health monitor method comprises the steps:
Gather 1st district as describing object according to the faint strain signal of hyperchannel in the present embodiment, other duplicate.
(A) in step S101, initialization cubic hydraulic press health monitoring systems; In this step, when cubic hydraulic press and health monitoring systems all normally start, described microprocessor 9 is each block configuration initiation parameter.
(B) in step s 102, described strain detecting module 7 gathers often organizes the faint strain signal of corresponding working strain gauge test point on described strain acquirement sheet 20, and is converted to the voltage signal controlled within the scope of certain error; In this step, first R 11~ R n1time in running order, corresponding electronic switch 16 closes, and gathers R 11~ R n1the strain signal of the corresponding stress raiser of working strain gauge, by formula: U 0=UK ε/4 (wherein U 0for bridge road output voltage, U is bridge road input voltage, and K is foil gauge sensitivity coefficient, and ε is foil gauge strain) be converted to the voltage signal U controlled within the scope of certain error 11~ U n1;
(C) in step s 103, described voltage signal is carried out gain, filtering, conversion by described Signal-regulated kinase 7, and then described microprocessor 9 control store module 10 stores data, control electronic switch 16 to switch and often organize the corresponding service aisle of described strain acquirement sheet simultaneously, return step (B) executable operations, circulation is gone down successively; In this step, described voltage signal U 11~ U n1amplify through Signal-regulated kinase 8, filtering, conversion process obtain corresponding data signal, perform read-write operations by microprocessor 9 pairs of data-signals, store data.Meanwhile, be greater than described electronic switch 16 switching frequency to a certain degree under condition in described A/D converter 19 sample frequency, microprocessor 9 sends switching command by I/O mouth to electronic switch 16, makes 1 ~ n district working strain gauge R 11~ R n1corresponding electronic switch 16 disconnects, 1 ~ n district working strain gauge R 12~ R n2corresponding electronic switch 16 closes, and returns step (B) executable operations, and circulation is gone down successively;
(D) in step S104, described microcontroller 9 controls the timing of described wireless data transfer module 11 and reads described memory module 10 data, is sent to described upper computer software module 3 and waits for timing reading next time; In this step, described microcontroller 9 is according to the timer internal time, control the timing of described wireless data transfer module 11 and read described memory module 10 data, and be sent to described upper computer software module 3 and wait for that the new data of described memory module 10 are read in timing next time;
(E) in step S105, described remote monitoring module 3 is set up wide area by privately owned fixed ip address with described wireless data transfer module 11 and is connected, and carries out data-signal, control signal communication.Receive data, analyze data, store data, print analysis result according to Plotting data passage strain-time history curve map and by described printer 15 simultaneously;
(E1) in step S105, described upper computer software 12 is according to data signal analysis equipment use situation and prediction actual condition fatigue lifetime, memory data signal and analysis result.Described LCD display 13 display channel strain-time history curve map is worth with expection fatigue lifetime simultaneously;
(E2) in step S106 to S107, described upper computer software 12 is according to data in passage strain-time history curve map, and contrast sets strain threshold, frequently loads frequency threshold value.If described passage strain value is greater than setting strain threshold, then carry out step (E3), described remote monitoring module 3 stores this passage strain value and time simultaneously, and sending strain feedback signal by described wireless data transfer module 11 to described microprocessor 9, described microprocessor 9 performs the first alarm; If described passage strain value is less than described strain threshold, then returns step (E) and perform;
(E3) in step S108 to S109, described passage strain value is greater than described strain threshold, then described upper computer software 12 is drawn and loaded number of times-time history curve map.If described loading number of times is greater than setting and frequently loads frequency threshold value, then described remote monitoring module 3 stores this loading number of times-time history plot analyses result, and sending frequent loading number of times feedback signal by described wireless data transfer module 11 to described microprocessor 9, described microprocessor performs the second alarm; If described passage strain value is less than setting and frequently loads frequency threshold value, then return step (E) and perform.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. a cubic hydraulic press health monitoring systems, is characterized in that: the remote monitoring module comprising power management module, the signal processing module be connected with power management module and be connected with signal processing module; Wherein:
Signal processing module comprises microprocessor and the strain detecting module, Signal-regulated kinase, memory module and the wireless data transfer module that are connected with microprocessor respectively; Strain detecting module is connected with Signal-regulated kinase, and strain detecting module comprises the strain acquirement sheet, bridge-type compensating circuit, the electronic switch that are connected; Signal-regulated kinase comprises the channel amplifier, wave filter and the A/D converter that are connected.
2. cubic hydraulic press health monitoring systems according to claim 1, it is characterized in that: described power management module provides power supply by industrial alternating current, by power supply revolving die block and voltage-reference conversion, obtaining reliable and stable circuit voltage is that signal processing module is powered.
3. cubic hydraulic press health monitoring systems according to claim 1, is characterized in that: remote monitoring module comprises upper computer software, display, storer and printer.
4. cubic hydraulic press health monitoring systems according to claim 1, is characterized in that: the single armed half-bridge circuit that the working strain gauge that described bridge-type compensating circuit is temperature compensation sheet, High Precision Low Temperature floats resistance and multiple foil gauge is formed in parallel connects to form; Each foil gauge of working strain gauge is connected with described electronic switch, form the faint strain signal acquisition zone of hyperchannel, the duty of each passage is controlled by electronic switch, the electricity after stream is expanded as bridge power supply by voltage-reference by triode in the faint strain signal acquisition zone of each hyperchannel, and is welded on strain acquirement sheet.
5. cubic hydraulic press health monitoring systems according to claim 1, it is characterized in that: described strain acquirement sheet is made up of material 35GrMo identical with cubic hydraulic press, thickness 0.2 ~ 3mm, be sticked at cubic hydraulic press stress concentrated position, with cubic hydraulic press area of stress concentration, corresponding strain occur.
6. cubic hydraulic press health monitoring systems according to claim 1, is characterized in that: described voltage-reference and bridge-type compensating circuit input end expand to flow by triode and be connected; The each working strain gauge of bridge-type compensating circuit and electronic switch input end pass through connection; Electronic switch output terminal is linked in sequence by microprocessor I/O mouth and channel amplifier, wave filter, A/D converter.
7. cubic hydraulic press health monitoring systems according to claim 1, is characterized in that: described strain detecting module is attached to cubic hydraulic press stress concentrated position by described strain acquirement sheet; Power management module and signal processing module are by connection, and remote monitoring module is communicated by wireless data transfer module with signal processing module.
8. cubic hydraulic press health monitoring systems according to claim 1, it is characterized in that: single-chip microcomputer selected by described microprocessor, memory module selects SD card, display selects LCD display, voltage-reference adopts MAX6175, and electronic switch adopts CD4053, and channel amplifier adopts precision instrument amplifier INA114, wave filter adopts RC wave filter, and A/D converter adopts hyperchannel, high precision 24 AD7710 conversion chips.
9. a cubic hydraulic press health monitor method, is characterized in that: comprise the steps:
(A) initialization cubic hydraulic press health monitoring systems;
(B) strain detecting module acquires often organizes the faint strain signal of corresponding working strain gauge test point on strain acquirement sheet, and is converted to the voltage signal controlled within the scope of certain error;
(C) voltage signal is carried out gain, filtering, conversion by Signal-regulated kinase, and then Microprocessor S3C44B0X memory module stores data, control electronic switch switching simultaneously and often organize the corresponding service aisle of described strain acquirement sheet, return step (B) executable operations, circulation is gone down successively;
(D) memory module data are read in the timing of microprocessor controls wireless data transfer module, are sent to remote monitoring module and wait for timing reading next time;
(E) remote monitoring module is set up wide area by privately owned fixed ip address with described wireless data transfer module and is connected, and carries out data-signal, control signal communication; Receive data, analyze data, store data, simultaneously according to Plotting data passage strain-time history curve map and print analysis result by printer;
(E1) upper computer software is according to data signal analysis equipment use situation and prediction actual condition fatigue lifetime, memory data signal and analysis result; LCD display display channel strain-time history curve map is worth with expection fatigue lifetime simultaneously;
(E2) upper computer software is according to data in passage strain-time history curve map, and contrast sets strain threshold, frequently loads frequency threshold value; If passage strain value is greater than setting strain threshold, then carry out step (E3), remote monitoring module stores this passage strain value and time simultaneously, and send strain feedback signal by wireless data transfer module to microprocessor, microprocessor performs the first alarm; If passage strain value is less than strain threshold, then returns step (E) and perform;
(E3) passage strain value is greater than strain threshold, then upper computer software is drawn and loaded number of times-time history curve map; If loading number of times is greater than setting and frequently loads frequency threshold value, then remote monitoring module stores this loading number of times-time history plot analyses result, and sending frequent loading number of times feedback signal by wireless data transfer module to microprocessor, microprocessor performs the second alarm; If passage strain value is less than setting frequently load frequency threshold value, then returns step (E) and perform.
CN201510674673.XA 2015-10-19 2015-10-19 Cubic hydraulic press health monitor method and system Active CN105241370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510674673.XA CN105241370B (en) 2015-10-19 2015-10-19 Cubic hydraulic press health monitor method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510674673.XA CN105241370B (en) 2015-10-19 2015-10-19 Cubic hydraulic press health monitor method and system

Publications (2)

Publication Number Publication Date
CN105241370A true CN105241370A (en) 2016-01-13
CN105241370B CN105241370B (en) 2019-01-04

Family

ID=55039104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510674673.XA Active CN105241370B (en) 2015-10-19 2015-10-19 Cubic hydraulic press health monitor method and system

Country Status (1)

Country Link
CN (1) CN105241370B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105742767A (en) * 2016-05-09 2016-07-06 桂林电子科技大学 Terahertz band-pass filter adjusted through electrostatic driving

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101018169A (en) * 2006-08-07 2007-08-15 南京航空航天大学 Intelligent radio sensing network node for engineering structure health monitoring
DE102006034041A1 (en) * 2006-07-19 2008-01-31 Berufsgenossenschaftlicher Verein für Heilbehandlung Hamburg e.V. Berufsgenossenschaftliches Unfallkrankenhaus Hamburg Wireless strain gauge measuring system for use in e.g. mechanical engineering, has strain gauge implemented as single strip, where system is implemented to permit application of strip, so that data and energy are exchanged for operation
CN201193944Y (en) * 2008-04-15 2009-02-11 天津电子信息职业技术学院 Intelligent detecting instrument for bridge strain force
CN101377408A (en) * 2007-08-30 2009-03-04 北京佳讯飞鸿电气股份有限公司 Apparatus for indirectly measuring steel rail deformation parameter
US20100122592A1 (en) * 2008-11-20 2010-05-20 Nag-Jeam Kim System for measuring deflection of rotating shaft in wireless manner
CN201600208U (en) * 2009-11-16 2010-10-06 马廷霞 Stress strain remote monitoring instrument
CN102607859A (en) * 2012-03-07 2012-07-25 山推楚天工程机械有限公司 Method and device for testing stress of subframe of concrete mixer
CN104229632A (en) * 2014-07-07 2014-12-24 江苏省特种设备安全监督研究院南通分院 Safety and health monitoring system of portal crane
CN104344993A (en) * 2013-07-23 2015-02-11 国家电网公司 Method for testing and measuring member bearing capacity and material performance parameters
CN204212187U (en) * 2014-10-31 2015-03-18 广东省建筑科学研究院集团股份有限公司 A kind of Large strain method sensor mount
CN104501863A (en) * 2014-12-10 2015-04-08 西安工程大学 Composite cross arm stress strain online monitoring system and monitoring method thereof
CN204594593U (en) * 2015-02-02 2015-08-26 重庆师范大学 Multi-channel temperature measurement system
CN205156846U (en) * 2015-10-19 2016-04-13 桂林电子科技大学 Cubic apparatus hydraulic press health monitoring system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006034041A1 (en) * 2006-07-19 2008-01-31 Berufsgenossenschaftlicher Verein für Heilbehandlung Hamburg e.V. Berufsgenossenschaftliches Unfallkrankenhaus Hamburg Wireless strain gauge measuring system for use in e.g. mechanical engineering, has strain gauge implemented as single strip, where system is implemented to permit application of strip, so that data and energy are exchanged for operation
CN101018169A (en) * 2006-08-07 2007-08-15 南京航空航天大学 Intelligent radio sensing network node for engineering structure health monitoring
CN101377408A (en) * 2007-08-30 2009-03-04 北京佳讯飞鸿电气股份有限公司 Apparatus for indirectly measuring steel rail deformation parameter
CN201193944Y (en) * 2008-04-15 2009-02-11 天津电子信息职业技术学院 Intelligent detecting instrument for bridge strain force
US20100122592A1 (en) * 2008-11-20 2010-05-20 Nag-Jeam Kim System for measuring deflection of rotating shaft in wireless manner
CN201600208U (en) * 2009-11-16 2010-10-06 马廷霞 Stress strain remote monitoring instrument
CN102607859A (en) * 2012-03-07 2012-07-25 山推楚天工程机械有限公司 Method and device for testing stress of subframe of concrete mixer
CN104344993A (en) * 2013-07-23 2015-02-11 国家电网公司 Method for testing and measuring member bearing capacity and material performance parameters
CN104229632A (en) * 2014-07-07 2014-12-24 江苏省特种设备安全监督研究院南通分院 Safety and health monitoring system of portal crane
CN204212187U (en) * 2014-10-31 2015-03-18 广东省建筑科学研究院集团股份有限公司 A kind of Large strain method sensor mount
CN104501863A (en) * 2014-12-10 2015-04-08 西安工程大学 Composite cross arm stress strain online monitoring system and monitoring method thereof
CN204594593U (en) * 2015-02-02 2015-08-26 重庆师范大学 Multi-channel temperature measurement system
CN205156846U (en) * 2015-10-19 2016-04-13 桂林电子科技大学 Cubic apparatus hydraulic press health monitoring system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘元畅等: "《自动检测和过程控制》", 31 August 2005, 冶金工业出版社 *
李树刚等: "《安全监测监控技术》", 31 August 2008, 中国矿业大学出版社 *
赵人达等: "《大跨度铁路桥梁》", 31 March 2012, 中国铁道出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105742767A (en) * 2016-05-09 2016-07-06 桂林电子科技大学 Terahertz band-pass filter adjusted through electrostatic driving
CN105742767B (en) * 2016-05-09 2018-07-03 桂林电子科技大学 A kind of Terahertz bandpass filter being adjusted by electrostatic drive

Also Published As

Publication number Publication date
CN105241370B (en) 2019-01-04

Similar Documents

Publication Publication Date Title
CN102937646B (en) A kind of health monitoring systems for xoncrete structure
CN201993905U (en) ZigBee network-based temperature online monitoring and early-warning system
CN100538759C (en) Aerial power transmission line on-line monitoring system and method
CN201464075U (en) Long-range SAW temperature sensing system
CN201927070U (en) Semi-active RFID e-tag with temperature sensor
CN204315055U (en) Based on the underground cable monitor and early warning system of Internet of Things
CA2765260C (en) Intelligent monitoring system for pumping rod
CN205156846U (en) Cubic apparatus hydraulic press health monitoring system
CN104196520A (en) Remote continuous liquid level measurement and oil well intermittent pumping intelligent control system
CN105241370A (en) Cubic press health monitoring method and system
CN106352916A (en) Switch cabinet temperature online detection device
CN105092273A (en) Refrigerator test system and test method
CN105403421B (en) A kind of structural healthy monitoring system collected based on RF energy
CN102768081A (en) Passive wireless temperature measuring system for capacitors of transformer substation
CN105953934A (en) LC type passive wireless temperature sensor based on thermal double-layer execution beam
CN205353791U (en) Prestressing force stretch -draw intelligence control system
CN205430277U (en) GPRS terminal communication fault finding system
CN203337288U (en) Temperature detection device for thin-plate type cut-tobacco drier
CN106483367A (en) A kind of Intruding wave current/voltage integration monitoring device
CN204269263U (en) A kind of bridge health monitoring system
CN108995673B (en) System and method for monitoring comprehensive parameters of ballastless track
CN208333541U (en) The vacuum equipment of preventive maintenance
CN102685212A (en) Internet of things based temperature and humidity monitoring system for mine and implementation method thereof
CN109780984A (en) Separate type crack sensors and separate type crack sensing system based on RFID
CN202838656U (en) Structural support safety monitoring wireless sensing node based on ZigBee technology

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant