CN209168442U - Vehicle operational mode Practical training equipment - Google Patents
Vehicle operational mode Practical training equipment Download PDFInfo
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- CN209168442U CN209168442U CN201821588946.4U CN201821588946U CN209168442U CN 209168442 U CN209168442 U CN 209168442U CN 201821588946 U CN201821588946 U CN 201821588946U CN 209168442 U CN209168442 U CN 209168442U
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Abstract
The utility model relates to vehicle teaching apparatus fields, more particularly to a kind of vehicle operational mode Practical training equipment, including practical traning platform, automobile controller, CAN bus, practical traning platform is equipped with sink, the cell wall of sink is equipped with electric heater unit, and electric heater unit includes heater switch.It further include digital display thermometer, the display portion of digital display thermometer is arranged above sink, and the inductive probe of digital display thermometer gos deep into screw clamp.Automobile coolant temperature sensor is additionally provided in sink, the voltage signal output end of automobile coolant temperature sensor connects automobile controller.Due to the adoption of the above technical scheme, environmental working condition, automobile sensor, automobile mounted network have been carried out dynamic bind by the utility model, and the energy various operating conditions of simulated automotive provide the space of abundant hands-on to student, are suitble to Itemized teachings.
Description
Technical field
The utility model relates to vehicle teaching apparatus field more particularly to the visualization religions of a kind of Work condition analogue and process signal
Learn device.
Background technique
Automobile needs each physics of measurement, chemical quantity in operating condition, is captured and is converted by all kinds of automobile sensors
For electric signal, then by automobile controller (ECU) by these electric signal conversions, operation, processing, and it is compiled as CAN communication electricity frequently
Signal, by CAN bus on entire automotive networking interactive correspondence, finally received by automobile actuator, make corresponding execution.
Above-mentioned whole process is all to separate to show that teaching, the conversion of each pilot process are for current teaching equipment
It is not visible, more student can not be visually showed with connecting each other for whole service operating condition process is integrated.And
Student is only capable of measuring each circuit node of automobile electric control system under a certain fixed operating condition (indoor conventional sense) in practical course
Electric signal can not intuitively see the message compilation strategy of ECU, nothing the case where can not seeing its variation with operating condition and change
Method intuitively sees the numerical value of each crucial electric signal.And student can explorative experiment space very little, operable link is seldom, because
This, often by teacher for showing teaching, rather than allows student's training operation in practical course, does not meet the item " in learning by doing "
Mesh teaching idea.
Utility model content
The purpose of the utility model is to provide a kind of visual vehicle operational mode of signal conversion process is transformable
Practical training equipment, to solve the above technical problems.
The technical issues of the utility model is solved can be realized using following technical scheme:
Vehicle operational mode Practical training equipment, including practical traning platform, automobile controller (ECU), connect with the automobile controller
CAN bus, the practical traning platform is equipped with the sink for holding vehicles coolant liquid, and the cell wall of the sink is equipped with electric heating
Device, the electric heater unit include the heater switch for adjusting the electric heater unit, and the heater switch is arranged in institute
It states outside sink；
It further include one for detecting the digital display thermometer of temperature in sink, the display portion setting of the digital display thermometer exists
Above the sink, the inductive probe of the digital display thermometer is deep into the sink；
Automobile coolant temperature sensor, the voltage letter of the automobile coolant temperature sensor are additionally provided in the sink
Number output end connects the automobile controller.
Automobile cooling temperature in vehicle operational mode is become situation by being included in student after above-mentioned improvement by the utility model
In real training, manufacturing environment operating condition can be simulated.Student adjusts the heating state of electric heater unit by manually adjusting heater switch,
And then adjust the temperature of automobile cooling in sink, simulated coolant temperature variable working condition.Temperature signal controllable variations in sink
And received by automobile coolant temperature sensor, the output signal subsequent delivery of automobile coolant temperature sensor is controlled to automobile
Device, automobile controller processing signal are converted into CAN bus message and communications exchange, and last automobile actuator quantitatively executes.
In addition, the aobvious of the digital display thermometer above sink can be passed through when adjusting the temperature of automobile cooling in sink
Show that temperature conditions is checked in part.The utility model provides the space of abundant hands-on to student, is suitble to Itemized teachings, complete
Certain time is needed at whole operation process, to make student's more principle of profound understanding automotive control system in practice.
The automobile coolant temperature sensor is equipped with the detection tabs of detection resistance；
Further include one for showing the temperature signal display of resistance and voltage signal, is set on the temperature signal display
There are resistance electrical connections, voltage jointer；
It further include two groups for automobile coolant temperature sensor and the temperature signal display described in wired connection
The both ends of signal wire, the signal wire are equipped with jointing.In use, by signal wire connecting detection connector and resistance electrical connections,
Voltage signal output end and voltage jointer are connected by signal wire, realizes the display of signal.The utility model is by automobile cooling
The resistance change and voltage signal of temperature sensor change, and in such a way that manual line measures, increase the manual inspection of student
Survey ability.
Fan assembly is additionally provided on the practical traning platform, the fan assembly includes for adjusting the fan assembly air quantity
Air quantity knob；
It further include one for detecting the digital display air volume meter of fan assembly air quantity, the display portion setting of the digital display air volume meter
Inductive probe in the side of air quantity knob, the digital display air volume meter is arranged in front of the air outlet of the fan assembly；
Automotive air intake flow sensor, the automotive air intake flow sensing are additionally provided in front of the air outlet of the fan assembly
The voltage signal output end of device connects the automobile controller.The utility model by above-mentioned design, will be in vehicle operational mode
Car engine air admittance situation simulated, student adjusts the air quantity of fan assembly by manually adjusting air quantity knob, into
And the intake of simulated automotive engine.Air volume signal controllable variations are received by automotive air intake flow sensor, automotive air intake stream
The output signal subsequent delivery of quantity sensor is converted into CAN bus message simultaneously to automobile controller, automobile controller processing signal
Communications exchange, last automobile actuator quantitatively execute.
It further include one for showing that the flow signal display of voltage signal, the flow signal display are equipped with voltage
Connector；
It further include one group of letter for automotive air intake flow sensor and the flow signal display described in wired connection
The both ends of number line, the signal wire are equipped with jointing.In use, connecting the electricity of automotive air intake flow sensor by signal wire
Signal output end and voltage jointer are pressed, realizes the display of voltage signal.The utility model is by the electricity of automotive air intake flow sensor
Pressure signal intensity increases the manual detectability of student in such a way that manual line measures.
It further include a throttle foot pedal, the footrest shaft of the throttle foot pedal is equipped with for detecting the throttle footrest
Plate presses the angular transducer of angle, and the voltage signal output end of the angular transducer connects the automobile controller；
The air outlet of the fan assembly connects the electrically operated valve of air throttle, the letter of the electrically operated valve by wind pipe
Number control terminal connects the automobile controller.Throttle foot pedal is added in above-mentioned design, by trampling throttle foot pedal, drive simulating
Member steps on the gas movement, and angular transducer exports voltage signal to automobile controller, by result after automobile controller processing signal
It exports to air throttle, the electrically operated valve of air throttle rotates corresponding angle, adjusts the air force that air throttle passes through, and realizes that simulation is driven
The execution operating condition of the person's of sailing mobility operation.
It further include one for showing that the angle signal display of voltage signal, the angle signal display are equipped with two groups
Voltage jointer；
It further include two groups of signal wires for being used for wired connection, the both ends of the signal wire are equipped with jointing.In use, logical
The voltage signal output end and voltage jointer for crossing signal wire connection angular transducer, realize the display of voltage signal.By another
Group signal wire connection automobile controller is exported to the output end and another group of voltage jointer of electrically operated valve, realizes that air throttle receives letter
Number display.
It further include one for detecting the throttle sensor of the electrically operated valve rotational angle, the throttle sensor
Voltage signal output end connects the automobile controller；
It further include one for showing that the throttle signal display of voltage signal, the throttle signal display are equipped with
Voltage jointer；
It further include one group of signal wire for throttle sensor and the throttle signal display described in wired connection,
The both ends of the signal wire are equipped with jointing.In use, being exported by the voltage signal that signal wire connects throttle sensor
End and voltage jointer, realize the display of voltage signal.
Automobile instrument panel and oscillograph are connected in the CAN bus.Oscillograph is display, can be with display automobile controller
The CAN message of sending communicates electric frequency signal.The CAN message that automobile instrument panel receives automobile controller broadcast communicates electric frequency signal,
It is converted and extracts corresponding informance, and be shown on dial plate, checked for student.
The utility model has the advantages that due to the adoption of the above technical scheme, the utility model is by environmental working condition, automobile sensor, Automobile
Support grid network has carried out dynamic bind, and the energy various operating conditions of simulated automotive provide the space of abundant hands-on to student, are suitble to item
Meshization teaching.
Detailed description of the invention
Fig. 1 is a kind of connection schematic diagram of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face, which combines to be specifically illustrating, is further described the utility model.
Referring to Fig.1, vehicle operational mode Practical training equipment, including practical traning platform, automobile controller 1, connect with automobile controller 1
CAN bus 2.The automobile controller 1 of the utility model is using automobile controller general in the prior art, in actual implementation
When, automobile controller can be split out from automobile finished product, can also buy existing automobile controller.Existing automobile control
Electric signal conversion, the operation, processing that device 1 processed can input sensor, and be compiled into CAN message and communicate electric frequency signal, pass through CAN
Bus 2 is broadcast to In-vehicle networking.Also the CAN message on In-vehicle networking can be received and communicate electric frequency signal, correspondence is converted to electric signal
It exports and gives other actuators.
Practical traning platform is equipped with the sink 3 for holding vehicles coolant liquid, and the cell wall of sink 3 is equipped with electric heater unit 31,
Electric heater unit includes the heater switch 311 for adjusting electric heater unit, and heater switch 311 is arranged outside sink 3.Electric heating
The heating element of device 31 can use electrothermal tube, and heater switch 311 is switched using thermoregulation knob, switched and adjusted by thermoregulation knob
The heating temperature of economize on electricity heat pipe.Automobile cooling temperature in vehicle operational mode is become situation and passes through above-mentioned improvement by the utility model
After be included in student's real training, manufacturing environment operating condition can be simulated.Student adjusts electric heating dress by manually adjusting heater switch 311
31 heating state is set, and then adjusts the temperature of automobile cooling in sink 3, simulated coolant temperature variable working condition.In sink 3
Temperature signal controllable variations are simultaneously received by automobile coolant temperature sensor 33, the output letter of automobile coolant temperature sensor 33
Number subsequent delivery handles signal and is converted into 2 message of CAN bus and communications exchange to automobile controller 1, automobile controller 1, finally
Automobile actuator quantitatively executes.
It further include the digital display thermometer 32 for detecting temperature in sink 3, the display portion setting of digital display thermometer 32 exists
3 top of sink, the inductive probe of digital display thermometer 32 go deep into screw clamp 3.Automobile cooling temperature sensing is additionally provided in sink 3
The voltage signal output end of device 33, automobile coolant temperature sensor 33 connects automobile controller 1.Adjusting automobile in sink 3
When the temperature of coolant liquid, temperature conditions can be checked by the display portion of the digital display thermometer 32 of 3 top of sink.This is practical new
Type provides the space of abundant hands-on to student, is suitble to Itemized teachings, completes whole operation process and needs certain time,
To make student's more principle of profound understanding automotive control system in practice.
Automobile coolant temperature sensor 33 is equipped with the detection tabs of detection resistance.It further include one for showing resistance
With the temperature signal display 34 of voltage signal, temperature signal display 34 is equipped with resistance electrical connections, voltage jointer.It further include two
Group is used for the signal wire of wired connection automobile coolant temperature sensor 33 and temperature signal display 34, and the both ends of signal wire are set
There is jointing.In use, connecting voltage signal output by signal wire by signal wire connecting detection connector and resistance electrical connections
End and voltage jointer, realize the display of signal.The utility model by the resistance change of automobile coolant temperature sensor 33 and
Voltage signal variation, in such a way that manual line measures, increases the manual detectability of student.
Fan assembly 4 is additionally provided on practical traning platform, fan assembly 4 includes the air quantity knob for adjusting 4 air quantity of fan assembly
41.It further include the digital display air volume meter 42 for detecting 4 air quantity of fan assembly, the display portion of digital display air volume meter 42 is arranged in air quantity
The side of knob 41, the inductive probe of digital display air volume meter 42 are arranged in front of the air outlet of fan assembly 4.Fan assembly 4 goes out
Automotive air intake flow sensor 43 is additionally provided in front of air port, the voltage signal output end of automotive air intake flow sensor 43 connects vapour
Vehicle controller 1.The utility model carries out mould by above-mentioned design, by the car engine air admittance situation in vehicle operational mode
Quasi-, student adjusts the air quantity of fan assembly 4, and then the air inlet of simulated automotive engine by manually adjusting air quantity knob 41
Amount.Air volume signal controllable variations are received by automotive air intake flow sensor 43, the output signal of automotive air intake flow sensor 43
To automobile controller 1, automobile controller 1 handles signal and is converted into CAN message and communications exchange subsequent delivery, and last automobile executes
Device quantitatively executes.
It further include the flow signal display 44 for showing voltage signal, flow signal display 44 connects equipped with voltage
Head.It further include the signal wire that group is used for wired connection automotive air intake flow sensor 43 and flow signal display 44, signal wire
Both ends be equipped with jointing.In use, connecting the voltage signal output end of automotive air intake flow sensor 43 by signal wire
And voltage jointer, realize the display of voltage signal.The utility model changes the voltage signal of automotive air intake flow sensor 43,
In such a way that manual line measures, increase the manual detectability of student.
It further include throttle foot pedal 5, the footrest shaft of throttle foot pedal 5 is equipped with to be pressed for detecting throttle foot pedal 5
The voltage signal output end of the angular transducer 51 of angle, angular transducer 51 connects automobile controller 1.Fan assembly 4 goes out
Air port connects the electrically operated valve of air throttle 6 by wind pipe, and the signal control terminal of electrically operated valve connects automobile controller 1.On
It states design and adds throttle foot pedal 5, by trampling throttle foot pedal 5, drive simulating person steps on the gas movement, and angular transducer 51 will
Voltage signal is exported to automobile controller 1, and automobile controller 1 exports result to air throttle 6 after handling signal, air throttle 6
Electrically operated valve rotates corresponding angle, adjusts the air force that air throttle 6 passes through, and realizes the execution work of drive simulating person's mobility operation
Condition.
It further include the angle signal display 52 for showing voltage signal, angle signal display 52 is equipped with two groups of electricity
Crimp head.It further include two groups of signal wires for being used for wired connection, the both ends of signal wire are equipped with jointing.In use, passing through letter
The voltage signal output end and voltage jointer of number line connection angular transducer 51, realize the display of voltage signal.Pass through another group
Signal wire connects the output of automobile controller 1 to the output end and another group of voltage jointer of electrically operated valve, realizes that air throttle 6 receives letter
Number display.
It further include the throttle sensor 61 for detecting electrically operated valve rotational angle, the voltage letter of throttle sensor 61
Number output end connects automobile controller 1.It further include the throttle signal display 62 for showing voltage signal, throttle signal
Display 62 is equipped with voltage jointer.It further include group for wired connection throttle sensor 61 and throttle signal display 62
Signal wire, the both ends of signal wire are equipped with jointing.In use, being believed by the voltage that signal wire connects throttle sensor 61
Number output end and voltage jointer, realize the display of voltage signal.
Automobile instrument panel 7 and oscillograph 8 are connected in CAN bus 2.Oscillograph 8 is display, can be with display automobile controller
1 CAN message issued communicates electric frequency signal.Automobile instrument panel 7, which receives the CAN message communication electricity frequency that automobile controller 1 is broadcasted, to be believed
Number, it is converted and extracts corresponding informance, and be shown on dial plate, checked for student.
Embodiment 1, automobile cooling temperature become training operation:
1) heater switch 311 is adjusted, by the water temperature heating in sink 3 to set temperature, temperature value passes through digital display thermometer
32 display portion is visual.
2) automobile coolant temperature sensor 33 converts water temperature value to the variation of resistance value, and then is converted into output voltage
The variation of signal.Student by signal wire by 34 wired connection of automobile coolant temperature sensor 33 and temperature signal display,
The resistance value and voltage value of manual measurement automobile coolant temperature sensor 33, resistance signal and voltage signal are believed by temperature
Number display 34 is visual.
3) voltage signal of automobile coolant temperature sensor 33 inputs to automobile controller 1, handles through automobile controller 1
The electric frequency signal of CAN message communication is converted to be broadcast on In-vehicle networking.CAN message communicates the electricity frequency of electric frequency signal by oscillograph 8
It receives, student can make its display by debugging.
4) automobile instrument panel 7 receives the CAN message signal that automobile controller 1 is broadcasted, and is converted and extracts temperature information,
And the water temperature value of sink 3 is shown on automobile instrument panel 7.
Embodiment 2, automotive air intake amount training operation:
1) air quantity knob 41 is adjusted, the air force of fan assembly 4 is set.Air force passes through the aobvious of digital display air volume meter 42
Show partial visual.
2) air mass of 43 cooling water of units of measurement time of automotive air intake flow sensor, and it is translated into voltage signal input
To automobile controller 1, signal is visual by flow signal display 44.
3) voltage signal of automotive air intake flow sensor 43 inputs to automobile controller 1, handles and turns through automobile controller 1
The electric frequency signal of CAN message communication is changed to be broadcast on In-vehicle networking.The electricity frequency that CAN message communicates electric frequency signal is connect by oscillograph 8
It receives, student can make its display by debugging.
4) automobile instrument panel 7 receives the CAN message signal that automobile controller 1 is broadcasted, and is converted and extracts corresponding informance,
And it is shown on automobile instrument panel 7.
Embodiment 3, air throttle of car training operation:
1) throttle foot pedal 5 is adjusted, the voltage signal of corresponding angle size is inputed to automobile control by angular transducer 51
Device 1, and it is visual in angle signal display 52.Automobile controller 1 receives its signal and calculation processing, consequential signal export to
The electrically operated valve of air throttle 6, and it is visual in angle signal display 52, after the electrically operated valve of air throttle 6 receives signal, rotation
Corresponding angle.
2) throttle sensor 61 measures the rotational angle of the electrically operated valve of air throttle 6, and is translated into voltage signal
Automobile controller 1 is inputed to, the signal of valve sensor 61 is visual by throttle signal display 62.
3) angular transducer 51, valve sensor 61 voltage signal input to automobile controller 1 respectively, controlled through automobile
The processing of device 1 is converted to the electric frequency signal of CAN message communication and is broadcast on In-vehicle networking.CAN message communicates the electric frequency quilt of electric frequency signal
Oscillograph 8 receives, and student can make its display by debugging.
4) automobile instrument panel 7 receives the CAN message signal that automobile controller 1 is broadcasted, and is converted and extracts corresponding informance,
And it is shown on automobile instrument panel 7.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
- It is total including practical traning platform, automobile controller, the CAN that is connect with the automobile controller 1. vehicle operational mode Practical training equipment Line, which is characterized in that the practical traning platform is equipped with the sink for holding vehicles coolant liquid, and the cell wall of the sink is equipped with electricity Heating device, the electric heater unit include the heater switch for adjusting the electric heater unit, the heater switch setting Outside the sink；It further include one for detecting the digital display thermometer of temperature in sink, the display portion of the digital display thermometer is arranged described Above sink, the inductive probe of the digital display thermometer is deep into the sink；Automobile coolant temperature sensor is additionally provided in the sink, the voltage signal of the automobile coolant temperature sensor is defeated Outlet connects the automobile controller.
- 2. vehicle operational mode Practical training equipment according to claim 1, which is characterized in that the automobile cooling temperature passes Sensor is equipped with the detection tabs of detection resistance；It further include one for showing that the temperature signal display of resistance and voltage signal, the temperature signal display are equipped with electricity Hinder connector, voltage jointer；It further include two groups of signals for automobile coolant temperature sensor and the temperature signal display described in wired connection The both ends of line, the signal wire are equipped with jointing.
- 3. vehicle operational mode Practical training equipment according to claim 1, which is characterized in that be additionally provided with wind on the practical traning platform Fan device, the fan assembly include the air quantity knob for adjusting the fan assembly air quantity；It further include one for detecting the digital display air volume meter of fan assembly air quantity, the display portion of the digital display air volume meter is arranged in wind The side of knob is measured, the inductive probe of the digital display air volume meter is arranged in front of the air outlet of the fan assembly；It is additionally provided with automotive air intake flow sensor in front of the air outlet of the fan assembly, the automotive air intake flow sensor Voltage signal output end connects the automobile controller.
- 4. vehicle operational mode Practical training equipment according to claim 3, which is characterized in that further include one for showing voltage The flow signal display of signal, the flow signal display are equipped with voltage jointer；It further include one group of signal wire for automotive air intake flow sensor and the flow signal display described in wired connection, The both ends of the signal wire are equipped with jointing.
- 5. vehicle operational mode Practical training equipment according to claim 3, which is characterized in that it further include a throttle foot pedal, The footrest shaft of the throttle foot pedal is equipped with the angular transducer for detecting the throttle foot pedal pressing angle, described The voltage signal output end of angular transducer connects the automobile controller；The air outlet of the fan assembly connects the electrically operated valve of air throttle, the signal control of the electrically operated valve by wind pipe End processed connects the automobile controller.
- 6. vehicle operational mode Practical training equipment according to claim 5, which is characterized in that further include one for showing voltage The angle signal display of signal, the angle signal display are equipped with two groups of voltage jointers；It further include two groups of signal wires for being used for wired connection, the both ends of the signal wire are equipped with jointing.
- 7. vehicle operational mode Practical training equipment according to claim 5, which is characterized in that further include one described for detecting The voltage signal output end of the throttle sensor of electrically operated valve rotational angle, the throttle sensor connects the automobile control Device processed；It further include one for showing that the throttle signal display of voltage signal, the throttle signal display are equipped with voltage Connector；It further include one group of signal wire for throttle sensor and the throttle signal display described in wired connection, it is described The both ends of signal wire are equipped with jointing.
- 8. vehicle operational mode Practical training equipment according to claim 1, which is characterized in that connect vapour in the CAN bus Vehicle instrument board and oscillograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588946.4U CN209168442U (en) | 2018-09-28 | 2018-09-28 | Vehicle operational mode Practical training equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588946.4U CN209168442U (en) | 2018-09-28 | 2018-09-28 | Vehicle operational mode Practical training equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209168442U true CN209168442U (en) | 2019-07-26 |
Family
ID=67332429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821588946.4U Active CN209168442U (en) | 2018-09-28 | 2018-09-28 | Vehicle operational mode Practical training equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN209168442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233490A (en) * | 2020-11-06 | 2021-01-15 | 上海电子信息职业技术学院 | Visual teaching system |
-
2018
- 2018-09-28 CN CN201821588946.4U patent/CN209168442U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233490A (en) * | 2020-11-06 | 2021-01-15 | 上海电子信息职业技术学院 | Visual teaching system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 201600 1586 East Changxin Road, Dongjing Town, Songjiang District, Shanghai Patentee after: SHANGHAI GUANGSHUO EDUCATION TECHNOLOGY Co.,Ltd. Address before: 201408 Hongfu Road, Hongmiao Community, Fengcheng Town, Fengxian District, Shanghai Patentee before: SHANGHAI TECHNICAL INSTITUTE OF ELECTRONICS & INFORMATION |
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| TR01 | Transfer of patent right |