CN204066541U - A kind of teaching uses the circuit board composition of test carriage - Google Patents
A kind of teaching uses the circuit board composition of test carriage Download PDFInfo
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- CN204066541U CN204066541U CN201420428666.2U CN201420428666U CN204066541U CN 204066541 U CN204066541 U CN 204066541U CN 201420428666 U CN201420428666 U CN 201420428666U CN 204066541 U CN204066541 U CN 204066541U
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Abstract
The utility model discloses a kind of teaching with the circuit board composition of test carriage, comprise a main control board and multiple peripheral circuit plate, main control board and multiple peripheral circuit plate are installed on the car body of teaching test carriage; Main control board is provided with wireless transceiver and data storage cell; Multiple peripheral circuit plate is respectively the first peripheral circuit plate, the second peripheral circuit plate, the 3rd peripheral circuit plate and the 4th peripheral circuit board, first peripheral circuit plate is provided with motor-drive circuit module, second peripheral circuit plate is provided with video acquisition device, 3rd peripheral circuit plate is provided with posture detecting unit, and the 4th peripheral circuit board is provided with display unit; Wireless transceiver is RT5350 module.The utility model circuit is simple, reasonable in design and easy-to-connect, result of use are good, can mobilizing students start enthusiasm, suitable student's hands-on, and experiment content is more, effectively can improve the manipulative ability that student's hardware circuit connects.
Description
Technical field
The utility model relates to a kind of circuit board composition, especially relates to a kind of teaching with the circuit board composition of test carriage.
Background technology
Along with embedded technology has become one of the most popular technology of current information industry, the Embedded System Experiment that many colleges and universities offer also becomes increasingly complex, and relevant departments and colleges and universities have also held and design relevant various matches to embedded electronic.Traditional Embedded System Experiment Platform Price is expensive, and form is single, can not well mobilizing students start enthusiasm, and teaching efficiency is poor.And existing modular insert actual training device is the practice-training teaching for single little module circuit, the experiment content that can provide is also more limited, and student can not be allowed to realize design concept and the manufacturing process of embedded product comprehensively.At present, also not based on the Embedded System Experiment platform of test carriage on market, by this test carriage can well mobilizing students start enthusiasm.And, nowadays simple, the reasonable in design and circuit board composition of the teaching test carriage that easy-to-connect, result of use are good of a kind of circuit is lacked, can mobilizing students start enthusiasm, suitable student's hands-on, and experiment content is more, the manipulative ability that student's hardware circuit connects effectively can be improved.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, thering is provided a kind of imparts knowledge to students with the circuit board composition of test carriage, its circuit is simple, reasonable in design and easy-to-connect, result of use are good, can mobilizing students start enthusiasm, suitable student's hands-on, and experiment content is more, the manipulative ability that student's hardware circuit connects effectively can be improved.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: comprise a main control board and multiple peripheral circuit plate, described main control board and multiple described peripheral circuit plate are installed on the car body of teaching test carriage; The data storage cell described main control board being provided with wireless transceiver and being connected with wireless transceiver; Multiple described peripheral circuit plate is respectively the first peripheral circuit plate, the second peripheral circuit plate, the 3rd peripheral circuit plate and the 4th peripheral circuit board, described first peripheral circuit plate is provided with motor-drive circuit module, described second peripheral circuit plate is provided with video acquisition device, described 3rd peripheral circuit plate is provided with posture detecting unit, and described 4th peripheral circuit board is provided with display unit; Described wireless transceiver is wireless WIFI module, and described wireless WIFI module is RT5350 module; Described motor-drive circuit module is by GPIO interface and described RT5350 model calling, and described video acquisition device is USB camera and it is by USB interface and described RT5350 model calling, and described posture detecting unit is nine axle Attitude Measuring Units and it passes through I
2c bus interface and described RT5350 model calling, described display unit is by SPI interface and described RT5350 model calling.
Above-mentioned a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: described car body is provided with multiple board in circuit board slot supplying described main control board and described peripheral circuit plate plug-in mounting respectively.
Above-mentioned a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: described nine axle Attitude Measuring Units are GY-80 module.
Above-mentionedly a kind ofly to impart knowledge to students with the circuit board composition of test carriage, it is characterized in that: described car body is provided with travel driving motor and steering wheel, described travel driving motor and steering wheel all with motor-drive circuit model calling; Described second peripheral circuit plate is arranged on steering wheel.
Above-mentioned a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: described motor-drive circuit module comprises the direct current motor drive circuit that dual H-bridge DC motor Driver chip is connected with described dual H-bridge DC motor Driver chip, described dual H-bridge DC motor Driver chip is by GPIO interface and RT5350 model calling, and described travel driving motor and steering wheel are all connected with described direct current motor drive circuit.
Above-mentioned a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: described car body being provided with a drive sprocket axle with one is the follower shaft of parallel laying with described drive sprocket axle, and the two ends, left and right of described drive sprocket axle and described follower shaft are all provided with road wheel; The quantity of described travel driving motor is two, and two described travel driving motor are all in transmission connection with described drive sprocket axle, and two described travel driving motor are respectively the left motor and right motor that are arranged on the car body left and right sides; The servo driving circuit that described direct current motor drive circuit comprises the left motor-drive circuit driven described left motor, the right motor-drive circuit driven described right motor and drives steering wheel, described left motor-drive circuit is connected with described left motor, described right motor-drive circuit is connected with described right motor, and described servo driving circuit is connected with steering wheel;
Described dual H-bridge DC motor Driver chip comprises the first driving chip and the second driving chip, and described first driving chip and the second driving chip are L293D chip; 2nd pin of described first driving chip, the 6th pin, the 15th pin and the 11st pin are all by GPIO interface and RT5350 model calling, 3rd pin of described first driving chip is all connected with described left motor-drive circuit with the 7th pin, and the 14th pin of described first driving chip is all connected with described right motor-drive circuit with the 10th pin; 6th pin of described second driving chip and the 15th pin are all by GPIO interface and RT5350 model calling, and the 7th pin of described second driving chip is all connected with described direct current motor drive circuit with the 14th pin.
Above-mentionedly a kind ofly to impart knowledge to students with the circuit board composition of test carriage, it is characterized in that: described data storage cell comprises SDRAM storer and NAND-flash storer, described SDRAM storer and NAND-flash storer all with described RT5350 model calling.
Above-mentioned a kind of teaching uses the circuit board composition of test carriage, it is characterized in that: described display unit is digital display module, and described digital display module is 7289 EX BOARD modules.
The utility model compared with prior art has the following advantages:
1, simple, the reasonable in design and easy-to-connect of structure, mainly comprises a main control board and multiple peripheral circuit plate.
2, main control board is provided with RT5350 module, SDRAM storer and NAND-flash storer, the multiple peripheral circuit plates adopted are respectively the first peripheral circuit plate, the second peripheral circuit plate, the 3rd peripheral circuit plate and the 4th peripheral circuit board, first peripheral circuit plate is provided with motor-drive circuit module, second peripheral circuit plate is provided with video acquisition device, 3rd peripheral circuit plate is provided with posture detecting unit, and the 4th peripheral circuit board is provided with display unit.Physical cabling is easy, and reliability and dirigibility are better, can be according to actual needs, select and increase and decrease adopted peripheral circuit plate, thus can call the enthusiasm of starting of student, suitable student's hands-on, and experiment content is more, the manipulative ability that student's hardware circuit connects effectively can be improved.
3, the peripheral interface that the RT5350 module adopted configures enriches, and mainly comprises USB interface, serial ports, GPIO interface, iic bus and spi bus, can meet the connection requirement with multiple peripheral circuit plate.
4, result of use is good, and experiment content is more and teaching efficiency is good, adopts car body to test, and the simple and easy-to-connect of the circuit adopted, thus can effective mobilizing students interest, improve the manipulative ability of student, solve the deficiency that student cannot be set about for tradition huge experiment porch.Meanwhile, by selecting and increasing and decreasing adopted peripheral circuit plate, multiple different experiment can be completed.
5, widely applicable, can effectively be suitable on polytype teaching test carriage.
In sum, the utility model circuit is simple, reasonable in design and easy-to-connect, result of use are good, can mobilizing students start enthusiasm, suitable student's hands-on, and experiment content is more, effectively can improve the manipulative ability that student's hardware circuit connects.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 adopts by the utility model the circuit theory diagrams of GY-80 module.
Fig. 3 adopts by the utility model the circuit theory diagrams of dual H-bridge DC motor Driver chip.
Description of reference numerals:
1-travel driving motor; 2-steering wheel; 3-wireless transceiver;
4-motor-drive circuit module; 5-nine axle Attitude Measuring Units; 6-display unit;
7-USB camera; 8-SDRAM storer; 9-NAND-flash storer;
10-main control board.
Embodiment
As shown in Figure 1, the utility model comprises a main control board 10 and multiple peripheral circuit plate, and described main control board 10 and multiple described peripheral circuit plate are installed on the car body of teaching test carriage.The data storage cell described main control board 10 being provided with wireless transceiver 3 and being connected with wireless transceiver 3.Multiple described peripheral circuit plate is respectively the first peripheral circuit plate, the second peripheral circuit plate, the 3rd peripheral circuit plate and the 4th peripheral circuit board, described first peripheral circuit plate is provided with motor-drive circuit module 4, described second peripheral circuit plate is provided with video acquisition device, described 3rd peripheral circuit plate is provided with posture detecting unit, and described 4th peripheral circuit board is provided with display unit 6.Described wireless transceiver 3 is wireless WIFI module, and described wireless WIFI module is RT5350 module.Described motor-drive circuit module 4 is by GPIO interface and described RT5350 model calling, described video acquisition device is USB camera 7 and it is by USB interface and described RT5350 model calling, and described posture detecting unit is nine axle Attitude Measuring Units 5 and it passes through I
2c bus interface and described RT5350 model calling, described display unit 6 is by SPI interface and described RT5350 model calling.
In the present embodiment, described car body is provided with multiple board in circuit board slot supplying described main control board 10 and described peripheral circuit plate plug-in mounting respectively.
During actual use, described main control board 10 and described peripheral circuit plate also can adopt other mounting means, are arranged on described car body.
Described RT5350 module is a general 2.4G WiFi module, is furnished with two wired network interfaces, USB interface, several GPIO interface, I
2the peripheral interfaces such as C bus, spi bus.During actual use, carry out two-way communication with communication between described RT5350 module and host computer, described host computer is PC or smart mobile phone.During actual use, described smart mobile phone is the mobile phone being provided with android system.
In the present embodiment, described display unit 6 is digital display module, and described digital display module is 7289 EX BOARD modules.
In the present embodiment, described nine axle Attitude Measuring Units 5 are GY-80 module, and described GY-80 module passes through I
2c bus interface and RT5350 model calling.
As shown in Figure 2, described nine axle Attitude Measuring Units 5 comprise L3G4200D chip, ADXL345 chip, HMC5883L chip and BMP085 chip, L3G4200D chip is for measuring three axis angular rates, ADXL345 chip is for measuring 3-axis acceleration, HMC5883L chip is for measuring three-axle magnetic field, and BMP085 chip is for measuring air pressure and temperature.2nd pin of described L3G4200D chip connects with the 6th pin of the 1st pin of HMC5883L chip, the 14th pin of ADXL345 chip and BMP085 chip respectively, and the 3rd pin of described L3G4200D chip connects with the 7th pin of the 16th pin of HMC5883L chip, the 13rd pin of ADXL345 chip and BMP085 chip respectively.1st pin of described HMC5883L chip and the 16th pin are all and I
2c bus interface connects.
During physical cabling, the 1st, 16 and 15 pins of L3G4200D chip all connect 3.3V voltage end, and the equal ground connection of the 8th, 9,10,11,12 and 13 pin of L3G4200D chip, is connected to electric capacity C1 between the 1st pin of L3G4200D chip and the 8th pin.14th pin of L3G4200D chip divides two-way, and a road is ground connection after electric capacity C6 and resistance R1, and another road is ground connection after electric capacity C5.4th pin and the 5th pin of L3G4200D chip all connect VCC power end.
13rd, 4 and 2 pins of described HMC5883L chip all connect 3.3V voltage end, the 2nd of HMC5883L chip draws ground connection after foot meridian capacitor C3, electric capacity C7 is connected between 8th and 12 pins of HMC5883L chip, the 10th of HMC5883L chip draws ground connection after foot meridian capacitor C8, the equal ground connection of the 9th and 11 pin of HMC5883L chip.1st pin and the 16th pin of described HMC5883L chip connect 3.3V voltage end respectively after resistance R2 and resistance R3.
1st, 6 and 7 pins of described ADXL345 chip all connect 3.3V voltage end, and the 1st of ADXL345 chip draws ground connection after foot meridian capacitor C2, the equal ground connection of the 2nd, 4,5 and 12 pin of ADXL345 chip.1st pin ground connection of described BMP085 chip; 3rd pin of BMP085 chip divides two-way, and a road is ground connection after electric capacity C4, and another road connects 3.3V voltage end; 4th pin of BMP085 chip connects 3.3V voltage end.
In the present embodiment, described VCC power end is+12V power end.
In the present embodiment, described car body is provided with travel driving motor 1 and steering wheel 2, described travel driving motor 1 is all connected with motor-drive circuit module 4 with steering wheel 2.Described second peripheral circuit plate is arranged on steering wheel 2.
In the present embodiment, described motor-drive circuit module 4 comprises the direct current motor drive circuit that dual H-bridge DC motor Driver chip is connected with described dual H-bridge DC motor Driver chip, described dual H-bridge DC motor Driver chip is by GPIO interface and RT5350 model calling, and described travel driving motor 1 is all connected with described direct current motor drive circuit with steering wheel 2.
Described car body being provided with a drive sprocket axle with one is the follower shaft of parallel laying with described drive sprocket axle, and the two ends, left and right of described drive sprocket axle and described follower shaft are all provided with road wheel; The quantity of described travel driving motor 1 is two, and two described travel driving motor 1 are all in transmission connection with described drive sprocket axle, and two described travel driving motor 1 are respectively the left motor and right motor that are arranged on the car body left and right sides.The servo driving circuit that described direct current motor drive circuit comprises the left motor-drive circuit driven described left motor, the right motor-drive circuit driven described right motor and drives steering wheel 2, described left motor-drive circuit is connected with described left motor, described right motor-drive circuit is connected with described right motor, and described servo driving circuit is connected with steering wheel 2.
As shown in Figure 3, described dual H-bridge DC motor Driver chip comprises the first driving chip and the second driving chip, and described first driving chip and the second driving chip are L293D chip; 2nd pin of described first driving chip, the 6th pin, the 15th pin and the 11st pin are all by GPIO interface and RT5350 model calling, 3rd pin of described first driving chip is all connected with described left motor-drive circuit with the 7th pin, and the 14th pin of described first driving chip is all connected with described right motor-drive circuit with the 10th pin; 6th pin of described second driving chip and the 15th pin are all by GPIO interface and RT5350 model calling, and the 7th pin of described second driving chip is all connected with described direct current motor drive circuit with the 14th pin.
During physical cabling, described motor-drive circuit module 4 also comprises three-terminal voltage-stabilizing chip LM7805, the Vin pin of three-terminal voltage-stabilizing chip LM7805 connects with VCC power end, and the Vin pin of three-terminal voltage-stabilizing chip LM7805 ground connection after electric capacity C9 and C10 respectively, the GND pin ground connection of three-terminal voltage-stabilizing chip LM7805, the Vout of three-terminal voltage-stabilizing chip LM7805 draws ground connection after foot meridian capacitor C11, and the Vout pin of three-terminal voltage-stabilizing chip LM7805 is+5V voltage end.
In the present embodiment, described USB camera is the ZC0301Plus PC camera that company limited of Z-Star Microelectronics produces.
In the present embodiment, described data storage cell comprises SDRAM storer 8 and NAND-flash storer 9, and described SDRAM storer 8 is all connected with wireless transceiver 3 with NAND-flash storer 9.During actual use, described SDRAM storer 8 and NAND-flash storer 9 are all as the storer of wireless transceiver 3.
In the present embodiment, described steering wheel 2 is FUTABA-S3003 type steering wheel.During actual use, because USB camera 7 is arranged on steering wheel 2, thus USB camera 7 can with steering wheel 2 synchronizing moving to obtain video information with great visual angle.
To sum up, the utility model comprises a main control board 10 and multiple peripheral circuit plate, multiple described peripheral circuit plate is respectively arranged with USB camera 7, GY-80 module, digital display module and motor-drive circuit module 4, described main control board 10 is provided with RT5350 module and the SDRAM storer 8 connected with RT5350 module respectively and NAND-flash storer 9.Thus, physical cabling is easy, and reliability and dirigibility are better, according to actual needs, can select and increase and decrease adopted peripheral circuit plate.
In actual use procedure, described USB camera 7 is for gathering video information and by gathered video information synchronous driving to RT5350 module; Described GY-80 module is measured the magnetic field of three axis angular rates of car body described under current state and 3-axis acceleration and current environment, the gentle row of compressing into of temperature, and by measured result synchronous driving to RT5350 module; Camera 7 and GY-80 synchronizing information that module transmits are sent to described host computer by described RT5350 module.After the information that the described RT5350 module that receives described host computer transmits, inquire about at any time for operator and understand the running status of described car body; Simultaneously herewith, described host computer is sent to RT5350 module by the control information of described car body, and described RT5350 module carries out simultaneous display by described digital display module to received control information after receiving the control information of described host computer transmission; Afterwards, operator is adjusted with rotating speed and turning to of steering wheel 2 turning to of travel driving motor 1 by described left motor-drive circuit, described right motor-drive circuit and described servo driving circuit, wherein the direct current generator being routine with the adjustment mode of rotating speed that turns to of travel driving motor 1 is turned to and adjustment of rotational speed mode, and be that conventional direct current generator turns to adjustment mode to the adjustment mode turned to of steering wheel 2.
In addition, in actual use procedure, by described digital display module, simultaneous display is carried out to the information that camera 7 and GY-80 module are sent to RT5350 module.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. impart knowledge to students with the circuit board composition of test carriage for one kind, it is characterized in that: comprise a main control board (10) and multiple peripheral circuit plate, described main control board (10) and multiple described peripheral circuit plate are installed on the car body of teaching test carriage; The data storage cell described main control board (10) being provided with wireless transceiver (3) and being connected with wireless transceiver (3); Multiple described peripheral circuit plate is respectively the first peripheral circuit plate, the second peripheral circuit plate, the 3rd peripheral circuit plate and the 4th peripheral circuit board, described first peripheral circuit plate is provided with motor-drive circuit module (4), described second peripheral circuit plate is provided with video acquisition device, described 3rd peripheral circuit plate is provided with posture detecting unit, and described 4th peripheral circuit board is provided with display unit (6); Described wireless transceiver (3) is wireless WIFI module, and described wireless WIFI module is RT5350 module; Described motor-drive circuit module (4) is by GPIO interface and described RT5350 model calling, described video acquisition device is USB camera (7) and it is by USB interface and described RT5350 model calling, and described posture detecting unit is nine axle Attitude Measuring Units (5) and it passes through I
2c bus interface and described RT5350 model calling, described display unit (6) is by SPI interface and described RT5350 model calling.
2. use the circuit board composition of test carriage according to a kind of teaching according to claim 1, it is characterized in that: described car body is provided with multiple board in circuit board slot supplying described main control board (10) and described peripheral circuit plate plug-in mounting respectively.
3. use the circuit board composition of test carriage according to a kind of teaching the described in claim 1 or 2, it is characterized in that: described nine axle Attitude Measuring Units (5) are GY-80 module.
4. use the circuit board composition of test carriage according to a kind of teaching the described in claim 1 or 2, it is characterized in that: described car body is provided with travel driving motor (1) and steering wheel (2), described travel driving motor (1) is all connected with motor-drive circuit module (4) with steering wheel (2); Described second peripheral circuit plate is arranged on steering wheel (2).
5. use the circuit board composition of test carriage according to a kind of teaching according to claim 4, it is characterized in that: described motor-drive circuit module (4) comprises the direct current motor drive circuit that dual H-bridge DC motor Driver chip is connected with described dual H-bridge DC motor Driver chip, described dual H-bridge DC motor Driver chip is by GPIO interface and RT5350 model calling, and described travel driving motor (1) is all connected with described direct current motor drive circuit with steering wheel (2).
6. use the circuit board composition of test carriage according to a kind of teaching according to claim 5, it is characterized in that: described car body being provided with a drive sprocket axle with one is the follower shaft of parallel laying with described drive sprocket axle, and the two ends, left and right of described drive sprocket axle and described follower shaft are all provided with road wheel; The quantity of described travel driving motor (1) is two, two described travel driving motor (1) are all in transmission connection with described drive sprocket axle, and two described travel driving motor (1) are respectively the left motor and right motor that are arranged on the car body left and right sides; The servo driving circuit that described direct current motor drive circuit comprises the left motor-drive circuit driven described left motor, the right motor-drive circuit driven described right motor and drives steering wheel (2), described left motor-drive circuit is connected with described left motor, described right motor-drive circuit is connected with described right motor, and described servo driving circuit is connected with steering wheel (2);
Described dual H-bridge DC motor Driver chip comprises the first driving chip and the second driving chip, and described first driving chip and the second driving chip are L293D chip; 2nd pin of described first driving chip, the 6th pin, the 15th pin and the 11st pin are all by GPIO interface and RT5350 model calling, 3rd pin of described first driving chip is all connected with described left motor-drive circuit with the 7th pin, and the 14th pin of described first driving chip is all connected with described right motor-drive circuit with the 10th pin; 6th pin of described second driving chip and the 15th pin are all by GPIO interface and RT5350 model calling, and the 7th pin of described second driving chip is all connected with described direct current motor drive circuit with the 14th pin.
7. use the circuit board composition of test carriage according to a kind of teaching the described in claim 1 or 2, it is characterized in that: described data storage cell comprises SDRAM storer (8) and NAND-flash storer (9), described SDRAM storer (8) and NAND-flash storer (9) all with described RT5350 model calling.
8. use the circuit board composition of test carriage according to a kind of teaching the described in claim 1 or 2, it is characterized in that: described display unit (6) is digital display module, and described digital display module is 7289 EX BOARD modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428666.2U CN204066541U (en) | 2014-07-31 | 2014-07-31 | A kind of teaching uses the circuit board composition of test carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428666.2U CN204066541U (en) | 2014-07-31 | 2014-07-31 | A kind of teaching uses the circuit board composition of test carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066541U true CN204066541U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420428666.2U Expired - Fee Related CN204066541U (en) | 2014-07-31 | 2014-07-31 | A kind of teaching uses the circuit board composition of test carriage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932298A (en) * | 2015-04-28 | 2015-09-23 | 中国地质大学（武汉） | Controller of teaching robot |
| CN108564843A (en) * | 2018-01-30 | 2018-09-21 | 上海乐田教育科技有限公司 | A kind of trolley main control module for teaching programming plate |
-
2014
- 2014-07-31 CN CN201420428666.2U patent/CN204066541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932298A (en) * | 2015-04-28 | 2015-09-23 | 中国地质大学（武汉） | Controller of teaching robot |
| CN108564843A (en) * | 2018-01-30 | 2018-09-21 | 上海乐田教育科技有限公司 | A kind of trolley main control module for teaching programming plate |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160731 |