CN102311023A - Given method for on-line detection of additional starting moment loaded mine hoist - Google Patents
Given method for on-line detection of additional starting moment loaded mine hoist Download PDFInfo
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- CN102311023A CN102311023A CN201110238012A CN201110238012A CN102311023A CN 102311023 A CN102311023 A CN 102311023A CN 201110238012 A CN201110238012 A CN 201110238012A CN 201110238012 A CN201110238012 A CN 201110238012A CN 102311023 A CN102311023 A CN 102311023A
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Abstract
The invention relates to a given method for on-line detection of an additional starting moment of a loaded mine hoist, which comprises the following steps that: firstly, a tension sensor measures the tension of a steel wire rope for detecting the load weight in real time, a sending device sends out modulated signals in a wireless mode, a receiving device converts the wireless signals into voltage signals to obtain digital weight signals and transmits the digital weight signals to a singlechip, then, the singlechip calculates the digital weight signals to obtain the additional starting moment signals to be overlapped, the additional starting moment signals are sent to a host machine through a serial bus, finally, the host machine integrates the starting moment signals and the additional starting moment signals, sets overlapping current signals corresponding to the overlapping moment and judges whether a mechanical switch is switched off or not, when the mechanical switch is switched off, the overlapping current signals are output to a controller motor, and the motor is ensured to be started. The given method for on-line detection of the additional starting moment of the loaded mine hoist can simultaneously meet the starting requirement of the hoist under the conditions of heavy load, light load or idle load, the reverse rotation phenomenon occurring when the hoist is started is avoided, and the mine production safety is improved.
Description
Technical field
The present invention relates to the additional given method of staring torque of a kind of mine hoist, particularly a kind of mine hoist of online detection load-carrying adds the given method of staring torque.
Background technology
Adopt in the mine production of vertical shaft hoisting, the operation conditions of gig is directly connected to the safety in production on the ore deposit.At present, most vertical shaft hoisting machines adopt double-loop pattern to promote, and can think that when it is unloaded the resisting moment of gig is approximately zero, and the resisting moment of gig is produced by the weight that promotes goods when load-carrying.When mechanical brake is unclamped, when gig started, the weight that promotes cargo was born by the staring torque that electrical motor produces immediately, promptly gave step load of electrical motor.If during electrical motor was set up the additional staring torque of lifting, the lifting staring torque that electrical motor provides was less than the resisting moment of elevator system, gig can be transferred motion under the dragging of weight; Reversal development occurs, and increase the weight of the reversal development aggravation along with weight; Time length is elongated, and gig is static when the two balance, just forward acceleration of gig then; Elevator system gets into the forward acceleration phase, and production is very disadvantageous to this reversal development to mine safety.
At present; The startup of electrical motor is stopped and is generally adopted two closed loop controls; Because the delay link of electric current loop and der Geschwindigkeitkreis will inevitably cause the gig reversing, for addressing this problem, prior art adopts the method for differential feedforward to carry out lead compensation; The staring torque of electrical motor was greater than the resisting moment of weight, to avoid reversing when mechanical brake was unclamped.But in practical application, this method can not satisfy elevator system requirement to controller characteristic curve when zero load or underloading.
Summary of the invention
The object of the present invention is to provide a kind of additional given method of staring torque of mine hoist of online detection load-carrying, with the technical matters of mine hoist elevator system zero load in the solution prior art or the counter-rotating of light-load starting gig.
The additional staring torque of mine hoist that another object of the present invention is to a kind of online detection load-carrying is provided is to fixed system, with the technical matters of mine hoist elevator system zero load in the solution prior art or the counter-rotating of light-load starting gig.
For achieving the above object, the present invention provides a kind of mine hoist of online detection load-carrying the additional given method of staring torque, may further comprise the steps:
(1) tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
(2) sending set receives detected value detected value is amplified modulation treatment, and the signal after will modulating through wireless mode sends;
(3) wireless signal that sends out of receiving device transmission and reception apparatus changes into voltage signal with wireless signal, obtains digital weight signal, and digital weight signal is sent to micro controller system.
(4) micro controller system receives digital weight signal; The standard load value of digital weight signal with storage in advance compared; Judge the residing additional phase of gig; And digital weight signal is carried out computing according to the additional phase that judgement obtains, and needing to obtain the additional staring torque signal of stack, will add the staring torque signal via universal serial bus then and send to upper computer;
(5) comprehensive staring torque signal of upper computer and additional staring torque signal are set the how cooresponding superimposed current signal of stack moment;
(6) upper computer is monitored in real time, judges whether mechanical brake breaks off, if mechanical brake is broken off execution in step (7); Otherwise, return step (1);
(7) upper computer guarantees motor start-up to controller electrical motor output superimposed current signal.
According to the additional given method of staring torque of the mine hoist of the described a kind of online detection load-carrying of preferred embodiment of the present invention; This additional phase specifically comprises not additional phase, little additional phase and full additional phase, and additional phase is not applicable to the startup requirement under the light situation of load; Little additional phase is applicable to the requirement under the general condition of loading; Full additional phase is applicable to overload or startup requirement in emergency circumstances.
According to the additional given method of staring torque of the mine hoist of the described a kind of online detection load-carrying of preferred embodiment of the present invention; Step (1) also comprises before: preestablish gig load-carrying upper weight limit and lower limit; If load-carrying weight less than lower weight limit, then is in not additional phase; If load-carrying weight is between lower weight limit and the upper weight limit, then be in little additional phase; If load-carrying weight greater than upper weight limit, then is in full additional phase.
The present invention also provides the additional staring torque of a kind of mine hoist of online detection load-carrying to fixed system, comprising:
Pulling force sensor is installed in the skip bucket top of mine hoist, in order to the real-time monitoring load gravimetric value of tension force of measuring steel wire rope, and detected value is sent to sending set;
Sending set is connected with pulling force sensor, and in order to the detected value that receives is amplified modulation treatment, and the signal after will modulating through wireless mode sends;
Receiving device is connected with sending set, changes into voltage signal in order to wireless signal, obtains digital weight signal, and digital weight signal is sent to micro controller system;
Micro controller system; Be connected with receiving device; In order to the standard load value of digital weight signal with storage in advance compared, judge the residing additional phase of gig, and digital weight signal is carried out computing according to the additional phase that judgement obtains; Needing to obtain the additional staring torque signal of stack, will add the staring torque signal via universal serial bus then and send to upper computer;
Upper computer is connected with micro controller system, in order to comprehensive staring torque signal and additional staring torque signal, sets the how cooresponding superimposed current signal of stack moment; And, judge whether mechanical brake breaks off according to real-time monitoring, if mechanical brake is broken off, then, guarantee motor start-up to controller electrical motor output superimposed current signal.
Give fixed system according to the additional staring torque of the mine hoist of the described a kind of online detection load-carrying of preferred embodiment of the present invention, its sending set further comprises:
First modulate circuit comprises the two-stage first voltage modulate circuit, nurses one's health in order to the detected value to pulling force sensor, makes it have certain power-handling capability;
Wireless transmitter module is connected with modulate circuit, and in order to detected value being carried out carry out modulation treatment behind the power gain, and the signal after will modulating is launched.
Give fixed system according to the additional staring torque of the mine hoist of the described a kind of online detection load-carrying of preferred embodiment of the present invention, its receiving device further comprises:
Wireless receiving module in order to receiving the signal that wireless transmitter module sends, and carries out the signal that receives to be sent to the second voltage modulate circuit after the demodulation reduction;
The second voltage modulate circuit is connected with wireless receiving module, in order to signal condition is arrived the voltage signal that is fit to the A/D change-over circuit;
The A/D change-over circuit is connected with the second voltage modulate circuit, in order to voltage signal is converted to digital weight signal.
Give fixed system according to the additional staring torque of the mine hoist of the described a kind of online detection load-carrying of preferred embodiment of the present invention, its micro controller system further comprises:
Data memory module is in order to store predefined gig load-carrying upper weight limit and lower limit;
The additional phase judge module in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, is judged the residing additional phase of gig;
Additional staring torque computing module carries out computing in order to the judged result according to the additional phase judge module to digital weight signal, needing to obtain the additional staring torque signal of stack;
Signal transmitting module sends to upper computer in order to will add the staring torque signal through universal serial bus.
The present invention is through the online load-carrying measurement mechanism load weight that gets a promotion; Calculate additional staring torque signal through micro controller system, solved the latency issue that electric current loop and rotating speed change in two closed loop controls, than the lead compensation method that has differential feedforward now; This method can be calculated required staring torque in real time through the micro controller system internal program; So can satisfy the startup requirement under gig heavy duty, underloading or the zero load simultaneously, avoid gig reversing phenomenon, the safety that has improved Coal Production when starting, to occur.
Description of drawings
Fig. 1 is the method flow diagram of the additional given method of staring torque of mine hoist of the online detection load-carrying of the present invention;
Fig. 2 gives the application scheme drawing of fixed system for the additional staring torque of the mine hoist of the online detection load-carrying of the present invention.
Fig. 3 is the structure principle chart of a kind of sending set of the embodiment of the invention.
Fig. 4 is the structure principle chart of a kind of receiving device of the embodiment of the invention.
Fig. 5 is the structure principle chart of a kind of micro controller system of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing, specify the present invention.
Following embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
See also Fig. 1, a kind of mine hoist of online detection load-carrying adds the given method of staring torque, may further comprise the steps:
S11: the tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
S12: sending set receives detected value detected value is amplified modulation treatment, and the signal after will modulating through wireless mode sends;
S13: the wireless signal that the receiving device transmission and reception apparatus sends out, wireless signal is changed into voltage signal, obtain digital weight signal, and digital weight signal is sent to micro controller system.
S14: micro controller system receives digital weight signal; The standard load value of digital weight signal with storage in advance compared; Judge the residing additional phase of gig; And digital weight signal is carried out computing according to the additional phase that judgement obtains, and needing to obtain the additional staring torque signal of stack, will add the staring torque signal via universal serial bus then and send to upper computer;
S15: comprehensive staring torque signal of upper computer and additional staring torque signal, set the how cooresponding superimposed current signal of stack moment;
S16: upper computer is monitored in real time, judges whether mechanical brake breaks off, if mechanical brake is broken off execution in step S17:; Otherwise, return step S11;
S17: upper computer guarantees motor start-up to controller electrical motor output superimposed current signal.
In the above-mentioned method, this additional phase specifically comprises not additional phase, little additional phase and full additional phase, and additional phase is not applicable to the startup requirement under the light situation of load; Little additional phase is applicable to the requirement under the general condition of loading; Full additional phase is applicable to overload or startup requirement in emergency circumstances.
In addition, in the method for the invention, step (1) also comprises before: preestablish gig load-carrying upper weight limit and lower limit, if load-carrying weight less than lower weight limit, then is in not additional phase; If load-carrying weight is between lower weight limit and the upper weight limit, then be in little additional phase; If load-carrying weight greater than upper weight limit, then is in full additional phase.
Additional phase is not applicable to that load is lighter, and the moment that is produced by electrical motor can start under nonreversible situation fully; Little additional phase is applicable to general load, just can meet the demands through this electric current that superposes when promptly gig carries entirely; Big additional phase is applicable to then that the gig weight is overweight or is in an emergency when needing big moment.These values all can be set in micro controller system, after gig accomplish to start, can reduce the magnitude of current that superposes gradually, are that zero electrical motor normally moves up to the stack amount, and the speed that the stack amount reduces can be decided according to actual conditions.
Please consult Fig. 2 to Fig. 5 simultaneously, the present invention also provides the additional staring torque of a kind of mine hoist of online detection load-carrying to fixed system, comprising: pulling force sensor 10, sending set 11, receiving device 12, micro controller system 13 and upper computer 14.
Sending set 11 is in order to amplifying modulation treatment to the detected value that receives, and the signal after will modulating through wireless mode sends, and it further comprises:
First modulate circuit 111 comprises the two-stage first voltage modulate circuit 112, in order to the detected value of pulling force sensor 10 is nursed one's health, makes it have certain power-handling capability;
Receiving device 12 is connected with sending set 11, changes into voltage signal in order to wireless signal, obtains digital weight signal, and digital weight signal is sent to micro controller system 13, and it further comprises:
Wireless receiving module 121 in order to receiving the signal that wireless transmitter module 113 sends, and carries out the signal that receives to be sent to the second voltage modulate circuit 122 after the demodulation reduction;
The second voltage modulate circuit 122 is connected with wireless receiving module 121, in order to signal condition is arrived the voltage signal that is fit to A/D change-over circuit 123;
A/D change-over circuit 123 is connected with the second voltage modulate circuit 122, in order to voltage signal is converted to digital weight signal.
Data memory module 131 is in order to store predefined gig load-carrying upper weight limit and lower limit;
Additional phase judge module 132 in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, is judged the residing additional phase of gig;
Additional staring torque computing module 133 carries out computing in order to the judged result according to the additional phase judge module to digital weight signal, needing to obtain the additional staring torque signal of stack;
Signal transmitting module 134 sends to upper computer 14 in order to will add the staring torque signal through universal serial bus.
The control of micro controller system 13 is divided into three phases: not additional phase, little additional phase and full additional phase.Additional phase is not applicable to that load is lighter, and the moment that is produced by electrical motor can start under nonreversible situation fully; Little additional phase is applicable to general load, just can meet the demands through this electric current that superposes when promptly gig carries entirely; Big additional phase is applicable to then that the gig weight is overweight or is in an emergency when needing big moment.In the above embodiment of the present invention; The value of additional staring torque is through calculate in real time; It also can be set in micro controller system in advance; After gig accomplish to start, can reduce the magnitude of current that superposes gradually, be that zero electrical motor normally moves up to the stack amount, and the speed that the stack amount reduces can be decided according to actual conditions.
The present invention is through the online load-carrying measurement mechanism load weight that gets a promotion; Calculate additional staring torque signal through micro controller system, solved the latency issue that electric current loop and rotating speed change in two closed loop controls, than the lead compensation method that has differential feedforward now; This method can be calculated required staring torque in real time through the micro controller system internal program; So can satisfy the startup requirement under gig heavy duty, underloading or the zero load simultaneously, avoid gig reversing phenomenon, the safety that has improved Coal Production when starting, to occur.
More than disclosedly be merely several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop in protection scope of the present invention.
Claims (7)
1. the additional given method of staring torque of the mine hoist of an online detection load-carrying is characterized in that, may further comprise the steps:
(1) tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
(2) sending set receives detected value detected value is amplified modulation treatment, and the signal after will modulating through wireless mode sends;
(3) wireless signal that sends out of receiving device transmission and reception apparatus changes into voltage signal with said wireless signal, obtains digital weight signal, and said digital weight signal is sent to micro controller system.
(4) micro controller system receives said digital weight signal; The standard load value of digital weight signal with storage in advance compared; Judge the residing additional phase of gig; And digital weight signal is carried out computing according to the additional phase that judgement obtains, and needing to obtain the additional staring torque signal of stack, will add the staring torque signal via universal serial bus then and send to upper computer;
(5) comprehensive staring torque signal of upper computer and additional staring torque signal are set the how cooresponding superimposed current signal of stack moment;
(6) upper computer is monitored in real time, judges whether mechanical brake breaks off, if mechanical brake is broken off execution in step (7); Otherwise, return step (1);
(7) upper computer guarantees motor start-up to controller electrical motor output superimposed current signal.
2. the mine hoist of a kind of online detection load-carrying as claimed in claim 1 adds the given method of staring torque; It is characterized in that; Said additional phase specifically comprises not additional phase, little additional phase and full additional phase, and said not additional phase is applicable to the startup requirement under the light situation of load; Said little additional phase is applicable to the requirement under the general condition of loading; Said full additional phase is applicable to overload or startup requirement in emergency circumstances.
3. the mine hoist of a kind of online detection load-carrying as claimed in claim 1 adds the given method of staring torque; It is characterized in that; Step (1) also comprises before: preestablish gig load-carrying upper weight limit and lower limit, if load-carrying weight less than lower weight limit, then is in not additional phase; If load-carrying weight is between lower weight limit and the upper weight limit, then be in little additional phase; If load-carrying weight greater than upper weight limit, then is in full additional phase.
4. the additional staring torque of the mine hoist of an online detection load-carrying is given fixed system, it is characterized in that, comprising:
Pulling force sensor is installed in the skip bucket top of mine hoist, in order to the real-time monitoring load gravimetric value of tension force of measuring steel wire rope, and detected value is sent to sending set;
Sending set is connected with said pulling force sensor, and in order to the detected value that receives is amplified modulation treatment, and the signal after will modulating through wireless mode sends;
Receiving device is connected with said sending set, changes into voltage signal in order to said wireless signal, obtains digital weight signal, and said digital weight signal is sent to micro controller system;
Micro controller system; Be connected with said receiving device; In order to the standard load value of digital weight signal with storage in advance compared, judge the residing additional phase of gig, and digital weight signal is carried out computing according to the additional phase that judgement obtains; Needing to obtain the additional staring torque signal of stack, will add the staring torque signal via universal serial bus then and send to upper computer;
Upper computer is connected with said micro controller system, in order to comprehensive staring torque signal and additional staring torque signal, sets the how cooresponding superimposed current signal of stack moment; And, judge whether mechanical brake breaks off according to real-time monitoring, if mechanical brake is broken off, then, guarantee motor start-up to controller electrical motor output superimposed current signal.
5. the additional staring torque of the mine hoist of a kind of online detection load-carrying as claimed in claim 4 is given fixed system, it is characterized in that said sending set further comprises:
First modulate circuit comprises the two-stage first voltage modulate circuit, nurses one's health in order to the detected value to pulling force sensor, makes it have certain power-handling capability;
Wireless transmitter module is connected with said modulate circuit, and in order to detected value being carried out carry out modulation treatment behind the power gain, and the signal after will modulating is launched.
6. the additional staring torque of the mine hoist of a kind of online detection load-carrying as claimed in claim 4 is given fixed system, it is characterized in that said receiving device further comprises:
Wireless receiving module in order to receiving the signal that said wireless transmitter module sends, and carries out the signal that receives to be sent to the second voltage modulate circuit after the demodulation reduction;
The second voltage modulate circuit is connected with said wireless receiving module, in order to signal condition is arrived the voltage signal that is fit to the A/D change-over circuit;
The A/D change-over circuit is connected with the said second voltage modulate circuit, in order to voltage signal is converted to digital weight signal.
7. the additional staring torque of the mine hoist of a kind of online detection load-carrying as claimed in claim 4 is given fixed system, it is characterized in that said micro controller system further comprises:
Data memory module is in order to store predefined gig load-carrying upper weight limit and lower limit;
The additional phase judge module in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, is judged the residing additional phase of gig;
Additional staring torque computing module carries out computing in order to the judged result according to the additional phase judge module to digital weight signal, needing to obtain the additional staring torque signal of stack;
Signal transmitting module sends to upper computer in order to will add the staring torque signal through universal serial bus.
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| CN201110238012.4A CN102311023B (en) | 2011-08-18 | 2011-08-18 | Given method for on-line detection of additional starting moment loaded mine hoist |
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| CN201110238012.4A CN102311023B (en) | 2011-08-18 | 2011-08-18 | Given method for on-line detection of additional starting moment loaded mine hoist |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923539A (en) * | 2012-10-30 | 2013-02-13 | 吴江信谊精密五金有限公司 | Device for detecting tension of elevator dragging steel wire rope |
| CN103803415A (en) * | 2014-02-20 | 2014-05-21 | 张家港港务集团有限公司港盛分公司 | Method for detecting and maintaining braking torque value of inertia brake of portal crane |
| CN105523455A (en) * | 2015-11-02 | 2016-04-27 | 康力电梯股份有限公司 | Elevator weighing device |
| CN108667363A (en) * | 2017-03-31 | 2018-10-16 | 北大方正集团有限公司 | The control method and device of stepper motor movement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50149040A (en) * | 1974-05-22 | 1975-11-28 | ||
| JPS63306176A (en) * | 1987-05-27 | 1988-12-14 | インベンテイオ・アクテイエンゲゼルシヤフト | Elevator drive with regulator for nonshock starting |
| JPH01242375A (en) * | 1988-03-18 | 1989-09-27 | Hitachi Ltd | Method and device for control of elevator |
| JPH06321441A (en) * | 1993-03-04 | 1994-11-22 | Otis Elevator Co | Pre-torque electric current supply method for elevator hoisting winch |
| JPH1160089A (en) * | 1997-06-09 | 1999-03-02 | Inventio Ag | Method and device for adjusting drive |
| CN101279688A (en) * | 2008-05-15 | 2008-10-08 | 董传德 | Monitoring system for wire rope tension balancing cylinder and lifting load |
| CN101734529A (en) * | 2009-12-25 | 2010-06-16 | 上海永大吉亿电机有限公司 | Elevator starting torque compensation method |
| CN202245578U (en) * | 2011-08-18 | 2012-05-30 | 上海交通大学 | Mine hoist adding starting torque given system for on-line load detection |
-
2011
- 2011-08-18 CN CN201110238012.4A patent/CN102311023B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50149040A (en) * | 1974-05-22 | 1975-11-28 | ||
| JPS63306176A (en) * | 1987-05-27 | 1988-12-14 | インベンテイオ・アクテイエンゲゼルシヤフト | Elevator drive with regulator for nonshock starting |
| JPH01242375A (en) * | 1988-03-18 | 1989-09-27 | Hitachi Ltd | Method and device for control of elevator |
| JPH06321441A (en) * | 1993-03-04 | 1994-11-22 | Otis Elevator Co | Pre-torque electric current supply method for elevator hoisting winch |
| JPH1160089A (en) * | 1997-06-09 | 1999-03-02 | Inventio Ag | Method and device for adjusting drive |
| CN101279688A (en) * | 2008-05-15 | 2008-10-08 | 董传德 | Monitoring system for wire rope tension balancing cylinder and lifting load |
| CN101734529A (en) * | 2009-12-25 | 2010-06-16 | 上海永大吉亿电机有限公司 | Elevator starting torque compensation method |
| CN202245578U (en) * | 2011-08-18 | 2012-05-30 | 上海交通大学 | Mine hoist adding starting torque given system for on-line load detection |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923539A (en) * | 2012-10-30 | 2013-02-13 | 吴江信谊精密五金有限公司 | Device for detecting tension of elevator dragging steel wire rope |
| CN103803415A (en) * | 2014-02-20 | 2014-05-21 | 张家港港务集团有限公司港盛分公司 | Method for detecting and maintaining braking torque value of inertia brake of portal crane |
| CN103803415B (en) * | 2014-02-20 | 2015-07-22 | 张家港港务集团有限公司港盛分公司 | Method for detecting and maintaining braking torque value of inertia brake of portal crane |
| CN105523455A (en) * | 2015-11-02 | 2016-04-27 | 康力电梯股份有限公司 | Elevator weighing device |
| CN108667363A (en) * | 2017-03-31 | 2018-10-16 | 北大方正集团有限公司 | The control method and device of stepper motor movement |
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| CN102311023B (en) | 2014-04-02 |
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Effective date of registration: 20161216 Address after: 223001 science and Technology Industrial Park, Jiangsu, Huaian science and technology road, No. 18 Patentee after: North Jiangsu Institute of Shanghai Jiao Tong University Address before: 800 Dongchuan Road, Shanghai, No. 200240 Patentee before: Shanghai Jiaotong Univ. |