CN104111909A - Vehicle-mounted intelligent terminal USB extending device - Google Patents
Vehicle-mounted intelligent terminal USB extending device Download PDFInfo
- Publication number
- CN104111909A CN104111909A CN201410322090.6A CN201410322090A CN104111909A CN 104111909 A CN104111909 A CN 104111909A CN 201410322090 A CN201410322090 A CN 201410322090A CN 104111909 A CN104111909 A CN 104111909A
- Authority
- CN
- China
- Prior art keywords
- interface
- power supply
- microcontroller
- intelligent terminal
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Power Sources (AREA)
Abstract
The invention relates to a device used for extending a USB interface into a multifunctional interface, in particular to a vehicle-mounted intelligent terminal USB extending device. The vehicle-mounted intelligent terminal USB extending device comprises a power source, a micro controller, a USB interface, an RS232 interface, a key interface and a signal input interface, wherein the power source is connected to a vehicle-mounted storage battery and used for providing power for the micro controller, the USB interface and the RS232 interface, the power source comprises a first-stage power source and a second-stage power source, the first-stage power source is a DC-DC voltage-reduction switch power source composed of a linear voltage-stabilization chip U5 and a peripheral circuit, the second-stage power source is a linear voltage-stabilization power source composed of a linear voltage-stabilization chip U4 and a peripheral circuit of the linear voltage-stabilization chip U4, and the micro controller serves as a core element and is used for processing signals or interrupting inputting or coordinating communication among the interfaces. The vehicle-mounted intelligent terminal USB extending device is reasonable in design, reduces cost, reduces the size, increases stability and is quite favorable for application and popularization.
Description
Technical field
The present invention relates to a kind of equipment that USB interface is expanded to versatile interface, be specifically related to a kind of vehicle intelligent terminal USB expansion equipment.
Background technology
USB serial bus applications scope is very extensive now, vehicle-mounted computer or intelligent guidance system mostly have USB interface, and vehicle-mounted industry monitoring camera and some other equipment mostly only provide serial ports, cannot directly be connected with vehicle-mounted computer or intelligent guidance system, while also there is driving, operate the inconvenient unsafe situation of vehicle-mounted computer or intelligent guidance system simultaneously.Current solution is to turn serial ports integrated chip by USB to provide the conversion between USB and serial ports, this method cannot provide unnecessary keystroke interface, if add separately that again MCU provides keystroke interface, has increased system cost and communication and has been limited to serial ports speed.Our solution is to realize USB by the MCU able to programme of a support USB to realize signal input and keystroke interface to the conversion of serial ports simultaneously, has saved cost, has improved reliability simultaneously.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art and a kind of vehicle intelligent terminal USB expansion equipment is provided, USB interface is expanded to serial ports and signal input interface, well vehicle intelligent terminal and vehicle-mounted monitoring camera lens are linked together, some information that signal input interface can Real-time Obtaining vehicle and the security while improving human pilot to the operation of vehicle intelligent terminal.Realize by USB interface by car power source vehicle intelligent terminal (as vehicle-mounted flat etc.) power supply simultaneously.
The object of the present invention is achieved like this:
A kind of vehicle intelligent terminal USB expansion equipment, comprise power supply, microcontroller, USB interface, RS232 interface, keystroke interface, signal input interface, described power supply access vehicular power-bottle, in order to provide power supply to microcontroller, USB interface and RS232 interface, described power supply comprises first order power supply and second level power supply, described first order power supply is the DC-DC step-down switching power supply being made up of linear voltage stabilization chip U5 and peripheral circuit, and described second level power supply is the linear stabilized power supply being made up of linear voltage stabilization chip U4 and peripheral circuit thereof; Described microcontroller is as core devices, for the treatment of signal or interrupting input or coordinate the communication between each interface;
Receiving end USBD+, the transmitting terminal USBD-of described USB interface is connected with pin PA12 and the pin PA11 of microcontroller respectively, and RS232 interface is connected with pin PA9 and the pin PA10 of microcontroller.
Be sent to the vehicle intelligent terminals such as vehicle-mounted flat computer by USB expansion equipment through USB interface obtaining data and signals of vehicles and push button signalling from serial ports.USB interface is divided into two logical channels by microcontroller, and passage 1 is responsible for being communicated with between vehicle intelligent terminal with USB interface and serial equipment, and on this passage, expansion equipment is only as data relay; Passage 2 is responsible for mutual between intelligent terminal and USB expansion equipment, comprises button and the input of other signals, and power supply detects, power supply output control, and the communication of intelligent terminal and GPS module when external GPS module.
Based on the above, described keystroke interface is connected with microprocessor controls with signal input interface.
Based on the above, described microcontroller adopts the Transistor-Transistor Logic level of 3.3V, between described microcontroller and RS232 interface, carries out the conversion of Transistor-Transistor Logic level to RS232 level by level translator U2.
Based on the above; described first order power supply comprises a holding circuit; this holding circuit is made up of current insurance silk F1, diode D2 and diode D1; the monitoring of microcontroller to supply voltage realized by resistance R 4 and the dividing potential drop of resistance R 10 in the rear of described holding circuit; between described holding circuit and its rear, be connected with a common mode inductance T1, be used for eliminating the Conduction Interference of electromagnetism.
Based on the above; described second level power supply comprises an overvoltage crowbar; this overvoltage crowbar is made up of resistance R 8, R9, fiducial chip U7, triode Q1 and triode Q5; in order to prevent that overvoltage from burning out equipment and the rear class linear voltage stabilization chip U4 of connection, described resistance R 8, R9 protect voltage in order to regulate.
Based on the above, described microprocessor adopts the STM32F103C8T6 of STMicw Electronics, and this chip, based on ARM Cotex-M3 kernel, is supported USB2.0, and had 3 serial line interfaces.
Based on the above, the pin RST7 of described microcontroller is connected with reset capacitance C50, pin OSC-IN5, OSC-OUT6 are circumscribed with respectively capacitor C 44, capacitor C 45, between capacitor C 44, capacitor C 4, be connected with crystal oscillator Y1, the pin BOOT044 of described microprocessor is connected with the start-up mode BOOT0 wire jumper being made up of with resistance R 1 trigger J8, the BOOT1 of linear voltage stabilization chip U4 is by resistance R 5 ground connection, the analog power VDDA power supply that VDD33 is microcontroller through L2, the status indicator lamp that LED2 is this expansion equipment.
Based on the above, described level translator U2 is by the U1_TX(PA9 of microcontroller level) and U2_TX(PA1) be converted to TXD1 and the TXD2 of RS232 level, the RXD1 of RS232 level and RXD2 are converted to the U1_RX(PA10 of microcontroller level) and U2_RX(PA2).
Based on the above, on described RS232 interface, be provided with a preset GPS interface J3, be also provided with three keystroke interface by J2, this button adopts contact switch, and described RS232 interface comprises first signal input detecting circuit, secondary signal input detecting circuit, the first key-press input detects the twitter circuit that disappears, the second key-press input detects disappear twitter circuit and the 3rd key-press input and detects the twitter circuit that disappears, and described first signal input detecting circuit is by triode Q7, resistance R 16, R36, R43 and capacitor C 3 form, and detect external input signal ACC_IN by the low and high level of ACC_CPU, and described secondary signal input detecting circuit is by resistance R 23, R24 and capacitor C 16, diode D4 composition, carries out the detection of input signal by PAR_AD_CPU, the first described key-press input detects and disappears twitter circuit by resistance R 7, R37 and capacitor C 5 form, and the second described key-press input detects and disappears twitter circuit by resistance R 13, R14 and capacitor C 6 form, and the 3rd described key-press input detects and disappears twitter circuit by resistance R 17, R19 and capacitor C 7 form.
Working method: first, need a supporting program at microcontroller, after external equipment is connected with microcontroller, program can directly be carried out communication with the serial equipment that is connected on equipment J1 interface by USB interface.Equipment is in the time external key input or signal input being detected, can send coherent signal to microcontroller by USB interface, the program of microcontroller is made respective handling, and simultaneously microcontroller, initiatively to equipment query power supply or other signal conditions, or sends control signal as required.
The invention has the beneficial effects as follows:
1, applied widely, as long as can connect into a system by this interconnecting device and serial equipment with the smart machine of USB interface.
2, can external button, simple to operation.
3, can external GPS equipment.
4, the present invention is reasonable in design, and providing cost savings, dwindled volume has increased again stability, is beneficial to very much promotion and implementation.
Brief description of the drawings
Fig. 1 is USB expansion equipment system chart of the present invention.
Fig. 2 is USB interface expansion equipment inner structure graph of a relation.
Fig. 3 is first order power circuit diagram.
Fig. 4 is second level power circuit diagram.
Fig. 5 is chip and the peripheral circuit of chip STM32F103C8.
Fig. 6 is usb circuit.
Fig. 7 is button and other interface circuit.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Fig. 1 is one-piece construction figure.By USB expansion equipment, make the vehicle-mounted smart machines such as the vehicle-mounted flat computer with USB interface carry out data communication with the equipment that has serial line interface, and can accept button or other input.
As Fig. 2, 3, 4, shown in 5, a kind of vehicle intelligent terminal USB expansion equipment, comprise power supply, microcontroller, USB interface, RS232 interface, keystroke interface, signal input interface, described power supply access vehicular power-bottle, in order to microcontroller, USB interface and RS232 interface provide power supply, described power supply comprises first order power supply and second level power supply, described first order power supply is the DC-DC step-down switching power supply being made up of linear voltage stabilization chip U5 and peripheral circuit, the input from storage battery is depressurized to 5.3V by first order power supply, for second level power supply, by USB interface and RS232 interface supplying power for outside.Described second level power supply is the linear stabilized power supply being made up of linear voltage stabilization chip U4 and peripheral circuit thereof, and second level power supply uses linear voltage stabilization device that 5.3V is down to 3.3V to MCU(U6) and the level transferring chip (U2) of RS232 power.Described microcontroller is as core devices, for the treatment of signal or interrupting input or coordinate the communication between each interface;
Receiving end USBD+, the transmitting terminal USBD-of described USB interface is connected with pin PA12 and the pin PA11 of microcontroller respectively, and RS232 interface is connected with pin PA9 and the pin PA10 of microcontroller.
Based on the above, described keystroke interface is connected with microprocessor controls with signal input interface.
Based on the above, described microcontroller adopts the Transistor-Transistor Logic level of 3.3V, between described microcontroller and RS232 interface, carries out the conversion of Transistor-Transistor Logic level to RS232 level by level translator U2.
As shown in Figure 3, based on the above, described first order power supply comprises a holding circuit, prevents the damage to equipment of reversal connection or over-voltage and over-current, is the stable basis of rear level power supply.This holding circuit is made up of current insurance silk F1, diode D2 and diode D1, and the monitoring of microcontroller to supply voltage realized by resistance R 4 and the dividing potential drop of resistance R 10 in the rear of described holding circuit, is connected to the pin PA0 of microcontroller.Between described holding circuit and its rear, be connected with a common mode inductance T1, be used for eliminating the Conduction Interference of electromagnetism.
As shown in Figure 4; based on the above; described second level power supply comprises an overvoltage crowbar; this overvoltage crowbar is made up of resistance R 8, R9, fiducial chip U7, triode Q1 and triode Q5; in order to prevent that overvoltage from burning out equipment and the rear class linear voltage stabilization chip U4 of connection, described resistance R 8, R9 protect voltage in order to regulate.Exceed after setting voltage, U7 drags down Q1 and Q5, and no longer supplying power for outside prevents from burning out because of overvoltage equipment and the rear class linear voltage stabilization chip U4 of connection.Triode Q2 and resistance R 11, R12, for controlling external power output, can close as required to external power output, are connected to the PB15 of MCU.F2 and F3 are resettable fuse, set after electric current fusing automatically to protect other road power supplys unaffected and automatically recover exceeding after load is normal.
Based on the above, described microprocessor adopts the STM32F103C8T6 of STMicw Electronics, and this chip, based on ARM Cotex-M3 kernel, is supported USB2.0, and had 3 serial line interfaces.
Based on the above, the pin RST7 of described microcontroller is connected with reset capacitance C50, pin OSC-IN5, OSC-OUT6 are circumscribed with respectively capacitor C 44, capacitor C 45, between capacitor C 44, capacitor C 4, be connected with crystal oscillator Y1, the pin BOOT044 of described microprocessor is connected with the start-up mode BOOT0 wire jumper being made up of with resistance R 1 trigger J8, the BOOT1 of linear voltage stabilization chip U4 is by resistance R 5 ground connection, the analog power VDDA power supply that VDD33 is microcontroller through L2, the status indicator lamp that LED2 is this expansion equipment.
Based on the above, described level translator U2 is by the U1_TX(PA9 of microcontroller level) and U2_TX(PA1) be converted to TXD1 and the TXD2 of RS232 level, be suitable for remote transmission, the RXD1 of RS232 level and RXD2 are converted to the U1_RX(PA10 of microcontroller level) and U2_RX(PA2), mate with microcontroller.The bridge of outside RS232 signal to MCU.Triode Q4, resistance R 19, R20, R15 have formed a controllable enumerating mechanism, after starting successfully, system drags down USB_CONNECT, triode Q4 conducting, USBD-is pulled to VDD33 through R15, host computer starts to enumerate, and can re-enumeration after device reset, strengthen the reliability that USB connects.J4 is 10 external needle interfaces of equipment, and wherein Pin1-Pin5 is USB interface, and Pin6 is for subsequent use, and Pin7, Pin8 are used for connecing signals of vehicles, and Pin9, Pin10 are power supply input.
Based on the above, J1 is RS232 interface, containing 5V supplying power for outside.On described RS232 interface, be provided with a preset GPS interface J3, be also provided with three keystroke interface by J2, this button adopts contact switch, and described RS232 interface comprises first signal input detecting circuit, secondary signal input detecting circuit, the first key-press input detects the twitter circuit that disappears, the second key-press input detects disappear twitter circuit and the 3rd key-press input and detects the twitter circuit that disappears, and described first signal input detecting circuit is by triode Q7, resistance R 16, R36, R43 and capacitor C 3 form, and detect external input signal ACC_IN by the low and high level of ACC_CPU, and described secondary signal input detecting circuit is by resistance R 23, R24 and capacitor C 16, diode D4 composition, carries out the detection of input signal by PAR_AD_CPU, the first described key-press input detects and disappears twitter circuit by resistance R 7, R37 and capacitor C 5 form, and the second described key-press input detects and disappears twitter circuit by resistance R 13, R14 and capacitor C 6 form, and the 3rd described key-press input detects and disappears twitter circuit by resistance R 17, R19 and capacitor C 7 form.After push button signalling, signal is input to USB host computer (vehicle intelligent terminal) by USB in equipment Inspection, the actual functional capability of these buttons of software definition that move at USB host computer.
Claims (9)
1. a vehicle intelligent terminal USB expansion equipment, it is characterized in that: comprise power supply, microcontroller, USB interface, RS232 interface, keystroke interface, signal input interface, described power supply access vehicular power-bottle, in order to provide power supply to microcontroller, USB interface and RS232 interface, described power supply comprises first order power supply and second level power supply, described first order power supply is the DC-DC step-down switching power supply being made up of linear voltage stabilization chip U5 and peripheral circuit, and described second level power supply is the linear stabilized power supply being made up of linear voltage stabilization chip U4 and peripheral circuit thereof; Described microcontroller is as core devices, for the treatment of signal or interrupting input or coordinate the communication between each interface;
Receiving end USBD+, the transmitting terminal USBD-of described USB interface is connected with pin PA12 and the pin PA11 of microcontroller respectively, and RS232 interface is connected with pin PA9 and the pin PA10 of microcontroller.
2. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1, is characterized in that: described keystroke interface is connected with microprocessor controls with signal input interface.
3. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1, it is characterized in that: described microcontroller adopts the Transistor-Transistor Logic level of 3.3V, between described microcontroller and RS232 interface, carries out the conversion of Transistor-Transistor Logic level to RS232 level by level translator U2.
4. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1; it is characterized in that: described first order power supply comprises a holding circuit; this holding circuit is made up of current insurance silk F1, diode D2 and diode D1; the monitoring of microcontroller to supply voltage realized by resistance R 4 and the dividing potential drop of resistance R 10 in the rear of described holding circuit; between described holding circuit and its rear, be connected with a common mode inductance T1, be used for eliminating the Conduction Interference of electromagnetism.
5. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1; it is characterized in that: described second level power supply comprises an overvoltage crowbar; this overvoltage crowbar is made up of resistance R 8, R9, fiducial chip U7, triode Q1 and triode Q5; in order to prevent that overvoltage from burning out equipment and the rear class linear voltage stabilization chip U4 of connection, described resistance R 8, R9 protect voltage in order to regulate.
6. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1, it is characterized in that: described microprocessor adopts the STM32F103C8T6 of STMicw Electronics, this chip, based on ARM Cotex-M3 kernel, is supported USB2.0, and is had 3 serial line interfaces.
7. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1, it is characterized in that: the pin RST7 of described microcontroller is connected with reset capacitance C50, pin OSC-IN5, OSC-OUT6 is circumscribed with respectively capacitor C 44, capacitor C 45, in capacitor C 44, between capacitor C 4, be connected with crystal oscillator Y1, the pin BOOT044 of described microprocessor is connected with the start-up mode BOOT0 wire jumper being made up of with resistance R 1 trigger J8, the BOOT1 of linear voltage stabilization chip U4 is by resistance R 5 ground connection, the analog power VDDA power supply that VDD33 is microcontroller through L2, LED2 is the status indicator lamp of this expansion equipment.
8. a kind of vehicle intelligent terminal USB expansion equipment according to claim 3, it is characterized in that: described level translator U2 is by the U1_TX(PA9 of microcontroller level) and U2_TX(PA1) be converted to TXD1 and the TXD2 of RS232 level, the RXD1 of RS232 level and RXD2 are converted to the U1_RX(PA10 of microcontroller level) and U2_RX(PA2).
9. a kind of vehicle intelligent terminal USB expansion equipment according to claim 1, it is characterized in that: on described RS232 interface, be provided with a preset GPS interface J3, also be provided with three keystroke interface by J2, this button adopts contact switch, described RS232 interface comprises first signal input detecting circuit, secondary signal input detecting circuit, the first key-press input detects the twitter circuit that disappears, the second key-press input detects disappear twitter circuit and the 3rd key-press input and detects the twitter circuit that disappears, described first signal input detecting circuit is by triode Q7, resistance R 16, R36, R43 and capacitor C 3 form, low and high level by ACC_CPU detects external input signal ACC_IN, described secondary signal input detecting circuit is by resistance R 23, R24 and capacitor C 16, diode D4 composition, carry out the detection of input signal by PAR_AD_CPU, the first described key-press input detects and disappears twitter circuit by resistance R 7, R37 and capacitor C 5 form, the second described key-press input detects and disappears twitter circuit by resistance R 13, R14 and capacitor C 6 form, the 3rd described key-press input detects and disappears twitter circuit by resistance R 17, R19 and capacitor C 7 form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322090.6A CN104111909A (en) | 2014-07-05 | 2014-07-05 | Vehicle-mounted intelligent terminal USB extending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322090.6A CN104111909A (en) | 2014-07-05 | 2014-07-05 | Vehicle-mounted intelligent terminal USB extending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104111909A true CN104111909A (en) | 2014-10-22 |
Family
ID=51708706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410322090.6A Pending CN104111909A (en) | 2014-07-05 | 2014-07-05 | Vehicle-mounted intelligent terminal USB extending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104111909A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182956A (en) * | 2015-07-29 | 2015-12-23 | 芜湖莫森泰克汽车科技有限公司 | Safety monitoring system for skylight ECU |
| CN105759693A (en) * | 2016-04-21 | 2016-07-13 | 山西大学 | Motor vehicle network input and output control card |
| CN106372018A (en) * | 2016-11-11 | 2017-02-01 | 深圳市威尔德医疗电子有限公司 | Multifunctional interface board for ultrasonic diagnosis device |
| CN106445233A (en) * | 2016-09-29 | 2017-02-22 | 努比亚技术有限公司 | Control method for terminal and electronic equipment |
| CN112799701A (en) * | 2021-01-29 | 2021-05-14 | 东风汽车集团股份有限公司 | Instrument software upgrading method, device and storage medium |
-
2014
- 2014-07-05 CN CN201410322090.6A patent/CN104111909A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182956A (en) * | 2015-07-29 | 2015-12-23 | 芜湖莫森泰克汽车科技有限公司 | Safety monitoring system for skylight ECU |
| CN105759693A (en) * | 2016-04-21 | 2016-07-13 | 山西大学 | Motor vehicle network input and output control card |
| CN105759693B (en) * | 2016-04-21 | 2018-12-07 | 山西大学 | Motor vehicle network inputs export control card |
| CN106445233A (en) * | 2016-09-29 | 2017-02-22 | 努比亚技术有限公司 | Control method for terminal and electronic equipment |
| CN106372018A (en) * | 2016-11-11 | 2017-02-01 | 深圳市威尔德医疗电子有限公司 | Multifunctional interface board for ultrasonic diagnosis device |
| CN112799701A (en) * | 2021-01-29 | 2021-05-14 | 东风汽车集团股份有限公司 | Instrument software upgrading method, device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104111909A (en) | Vehicle-mounted intelligent terminal USB extending device | |
| CN104396222B (en) | For passing through method and the equipment of single signal operate accessory interface function | |
| JP5941135B2 (en) | Electronic device having USB interface and USB communication activation method | |
| TW201427313A (en) | NFC terminal and power saving method thereof | |
| CN102339114A (en) | Charging circuit and mainboard with same | |
| CN103326313A (en) | Intelligent initiating explosive device ignition controller | |
| CN113437990B (en) | Chip detector | |
| CN103226458A (en) | Multi-screen display control method for intelligent mobile equipment | |
| CN103546638B (en) | A kind of flash memory cards fall card restoration methods and mobile terminal thereof | |
| CN102779109A (en) | I/O module with power-uninterruptible USB port | |
| CN202759437U (en) | Interface circuit for dual-interface smart card | |
| CN105447922A (en) | Intelligent attendance system | |
| CN103513742A (en) | Terminal device | |
| EP2985673B1 (en) | Method and terminal device for continuous power supply to external carrier | |
| CN104636287B (en) | Data acquisition facility and mobile terminal | |
| CN201886348U (en) | Real time monitoring device of industrial personal computer | |
| CN205524052U (en) | Control on -vehicle GPS's power supply point fire starting circuit | |
| CN207233129U (en) | A kind of Pickproof alarm system | |
| CN202472894U (en) | Short message monitoring alarming device | |
| CN105468424B (en) | A kind of Moped Scooter intelligent diagnostics update device | |
| US20140115356A1 (en) | Transformer capable of automatic input power adjustment and computer using the transformer | |
| US9058161B2 (en) | Universal power supplying apparatus and universal power supplying method | |
| CN203706218U (en) | Multipath sensing controller used for mobile terminal | |
| CN204117570U (en) | The display device of electrical equipment | |
| CN204323535U (en) | Bluetooth of mobile phone Based Intelligent Control protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141022 |
|
| RJ01 | Rejection of invention patent application after publication |