CN205608982U - Infra red ray induction U dish - Google Patents
Infra red ray induction U dish Download PDFInfo
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- CN205608982U CN205608982U CN201620435908.XU CN201620435908U CN205608982U CN 205608982 U CN205608982 U CN 205608982U CN 201620435908 U CN201620435908 U CN 201620435908U CN 205608982 U CN205608982 U CN 205608982U
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- resistance
- flash disk
- usb flash
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- infrared induction
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- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000036961 partial effect Effects 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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Abstract
The utility model discloses an infra red ray induction U dish, it includes USB flash disk storage module and infra red ray induction device, the infra red ray induction device includes power VCC, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, triode V1, triode V2, electric capacity C1, electric capacity C2, operational amplifier, infrared transmitting tubes D1 and infrared receiving tube D2. This novel adoption infra red ray induction device, after opening the infra red ray induction device, after the people kept away from USB flash disk default distance, the infra red ray induction device triggered the siren and reminds the owner to the possibility that the owner loses the USB flash disk has been reduced.
Description
Technical field
This utility model relates to a kind of USB flash disk with infrared induction.
Background technology
USB flash disk, English name " USB flash disk ", full name is USB flash drive.It is that a kind of miniature high power capacity without phisical drive using USB interface moves storage product, by USB interface and computer or other be connected with the equipment of USB interface, it is achieved plug and play.The address of USB flash disk derives from the novel storage device of one that Netac's science and technology produces the earliest, and name is said " flash disk ", uses USB interface to be attached.After USB flash disk is connected to the USB interface of computer, the data of USB flash disk can exchange with computer.And the equipment of the similar techniques produced afterwards is renamed as " USB flash disk " of partials by " flash disk ".Later, USB flash disk this address because it is the most easy to remember thus be widely known by the people, be one of movable storage device.
At present, the man-machine interaction of existing USB flash disk is low, and USB flash disk cannot transmit relevant information to owner.The thing in use losing USB flash disk because forgetting to choose in time USB flash disk often occurs.And after USB flash disk is lost, owner is difficult to give for change USB flash disk, is likely to result in the loss of capsule information, leakage, brings the biggest trouble to user.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of infrared induction USB flash disk, the circuit structure of existing USB flash disk is improved so that it is user can be pointed out in time to forget USB flash disk of choosing, prevent loss.
In order to solve above-mentioned technical problem, this utility model be employed technical scheme comprise that, a kind of infrared induction USB flash disk, including USB flash disk memory module and infrared induction device, described infrared induction device includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, audion V1, audion V2, electric capacity C1, electric capacity C2, operational amplifier, infrared transmitting tube D1 and infrared receiving tube D2, one end of resistance R1, one end of resistance R2, first negative input end of operational amplifier, the emitter stage of audion V1, one end of resistance R5 is connected to power supply VCC, ground connection after the other end series connection infrared transmitting tube D1 of resistance R1；The other end of resistance R2 is divided into two-way, and ground connection after a road series connection infrared receiving tube D2, another road is connected to the second negative input end of operational amplifier；Electric capacity C1 is parallel to the two ends of infrared receiving tube D1；Electric capacity C2 is parallel to the two ends of infrared receiving tube D2；Ground connection after second positive input terminal series resistance R3 of operational amplifier；First positive input terminal ground connection of operational amplifier；It is connected with the base stage of audion V1 and the base stage of audion V2 after outfan series resistance R4 of operational amplifier, the colelctor electrode of audion V1 and the grounded collector of audion V2；The emitter stage of audion V2 is connected to the other end of resistance R5.Wherein, USB flash disk memory module be i.e. the general utility functions of existing USB flash disk realize circuit, its can use existing USB flash disk store circuit realiration, I will not elaborate.
Further, switch for convenience, described infrared induction device also includes switching K, switch K is serially connected with between the input of power supply VCC and each device, namely one end of switch K is connected to power supply VCC, the other end connects one end of resistance R1, one end of resistance R2, the first negative input end of operational amplifier, the emitter stage of audion V1, one end of resistance R5.
Further, reporting to the police for convenience, described infrared induction device also includes that buzzer Y1, buzzer Y1 are serially connected between the emitter stage of power supply VCC and audion V1.
Further, in order to further facilitate warning, described infrared induction device also includes LED light D3, and LED light D3 is serially connected between the emitter stage of resistance R5 and audion V2.
Further, described USB flash disk memory module includes governor circuit, filtering voltage regulation power supply circuits, flash chip circuit and crystal oscillating circuit, filtering voltage regulation power supply circuits are connected between power supply and governor circuit, and flash chip circuit and crystal oscillating circuit are all bi-directionally connected with governor circuit.
Basis is the most novel sets up infrared induction device on the basis of the circuit of prior art, after opening infrared induction device, after people is away from USB flash disk certain distance, infrared induction device can't detect infrared ray, trigger siren, siren sounding reminding owner, reduces owner and loses the probability of USB flash disk.This novel circuit structure is simple, it is easy to accomplish, there is good practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present utility model；
Fig. 2 is the circuit theory diagrams of the infrared induction device of the present embodiment；
Fig. 3 is the circuit theory diagrams of the governor circuit of USB flash disk memory module；
Fig. 4 is the partial circuit schematic diagram one of the filtering voltage regulation power supply circuits of USB flash disk memory module；
Fig. 5 is the partial circuit schematic diagram two of the filtering voltage regulation power supply circuits of USB flash disk memory module；
Fig. 6 is the circuit theory diagrams of the crystal oscillating circuit of USB flash disk memory module.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, this utility model is further illustrated.
As a concrete example, infrared induction USB flash disk of the present utility model includes PCB base plate, the shell that is encapsulated and the USB port exposed, and sees Fig. 1, PCB base plate and is provided with USB flash disk memory module, infrared induction device and switch.
See Fig. 2, in the present embodiment, infrared induction device includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, audion V1, audion V2, electric capacity C1, electric capacity C2, operational amplifier, infrared transmitting tube D1, infrared receiving tube D2, LED light D3, switch K and buzzer Y1, one end of resistance R1, one end of resistance R2, the first negative input end of operational amplifier, one end of buzzer Y1, one end of resistance R5 all concatenate ground connection after the other end series connection infrared transmitting tube D1 being connected to power supply VCC, resistance R1 after switching K；The other end of resistance R2 is divided into two-way, and ground connection after a road series connection infrared receiving tube D2, another road is connected to the second negative input end of operational amplifier；Electric capacity C1 is parallel to the two ends of infrared receiving tube D1；Electric capacity C2 is parallel to the two ends of infrared receiving tube D2；Ground connection after second positive input terminal series resistance R3 of operational amplifier；First positive input terminal ground connection of operational amplifier；It is connected with the base stage of audion V1 and the base stage of audion V2 after outfan series resistance R4 of operational amplifier, the colelctor electrode of audion V1 and the grounded collector of audion V2；The other end of resistance R5 it is connected to after emitter stage concatenation LED light D3 of audion V2；The emitter stage of the other end connecting triode V1 of buzzer Y1.
As a specific embodiment, seeing Fig. 2, component names and parameter representated by each label are as follows: VCC: power supply, K: switch, the resistance of R1:300 ohm, the resistance of R2:30 kilohm, the resistance of R3:5 kilohm, the resistance of R4, R5:1 kilohm, V1, V2: audion, C1 the capacitor of C2:100 pico farad, LM358: operational amplifier, Y1: buzzer, D1: infrared emission tube, D2: infrared receiver tube, D3:LED display lamp.
Infrared induction device to realize principle as follows: switch on power, Guan Bi switch, infrared transmitting tube D1 turns on, sends infrared ray, then have a following situation:
(1) if now nobody blocks infrared ray, then infrared receiver tube D2 is not received by infrared ray, and infrared receiver tube D2 is in cut-off state.The voltage of infrared receiver tube D2 negative pole is high level, and delivers to 3 feet of LM358, makes 3 foot voltages be approximately equal to supply voltage.Because of the dividing potential drop of fixed value resistance R3, voltage reduces by the 2 foot voltages of LM358.Thus the voltage of 2 feet that the voltage of 3 feet of LM358 is more than LM358, operation principle according to operational amplifier is when V+ is < during V-, 1 foot of LM358 will output low level, and the base stage of PNP type triode V1, V2 is delivered to by current-limiting resistance R4, audion V1, V2 is caused to turn on, buzzer Y1 works, and light emitting diode D3 lights；
(2) if now someone blocks infrared ray, then infrared receiver tube receives infrared ray, and infrared receiver tube D2 is in the conduction state.The voltage of infrared receiver tube D2 negative pole is low level, and delivers to 3 feet of LM358.Now, according to the operation principle of operational amplifier, because 1 foot of V+ > V-, LM358 will export high level, therefore PNP type triode does not works, and no current flows through buzzer Y1 and light emitting diode D3, and the most now buzzer Y1 does not works with light emitting diode D3.
Disconnect switch while disconnecting power supply, or switching on power, then circuit does not works, and buzzer Y1 and light emitting diode D3 does not works.
USB flash disk memory module mainly includes governor circuit, filtering voltage regulation power supply circuits, flash chip circuit and crystal oscillating circuit, and filtering voltage regulation power supply circuits are connected between power supply and governor circuit, and flash chip circuit and crystal oscillating circuit are all bi-directionally connected with governor circuit.Governor circuit mainly uses main control chip to realize, and Fig. 3 is the circuit theory diagrams of the governor circuit of USB flash disk memory module, and in the present embodiment, the chip that main control chip uses model to be AU9380 realizes.Flash chip main circuit flash chip to be passed through and peripheral circuit thereof realize, and in the present embodiment, the chip that flash chip uses chip model to be K9F5608 realizes, and the power supply of this flash chip is dependent on VCC2FM.VCC in Fig. 3 is that the USB socket from main frame gets, but worry that voltage has some to disturb, so obtaining real VCC(5V by the filtering voltage regulation on the left side), equally from main control chip VCCIO output be that 3.3V voltage obtains stable VCC3.3 through voltage regulation filtering.Additionally a lime light of Fig. 3 is that main frame just can detect that USB-DP pin is high level, USB-DM low level when USB flash disk inserts main frame, and this has meant that equipment at usb bus, and then performs subsequent action and reads USB flash disk information.The connection of this chip is that the technical manual according to AU9380 connects.Here 21 pins are whether detection flash chip is in busy condition.If the R/nB end of busy flash chip is low level, then 21 pins are low levels, are held under high level state if not detecting.The power supply of flash chip is dependent on VCC2FM.
Fig. 4 and Fig. 5 is the partial circuit schematic diagram of filtering voltage regulation power supply circuits.In Fig. 4 and Fig. 5, magnetic bead, for suppressing the high-frequency noise on holding wire, power line and spike interference, also has the ability absorbing electrostatic pulse.
Fig. 6 is the circuit theory diagrams of crystal oscillating circuit.Circuit additional crystal oscillator 12MHz, has PLL inside main control chip, by its frequency multiplication, be simultaneously supplied to flash chip frequency.
In this novel infrared induction USB flash disk, USB port is responsible for connecting computer, is data input or the passage of output；Governor circuit is responsible for the coordinated management of each several part and assigns various actions instruction, and makes computer be identified as by USB flash disk " removable USB flash disk ", it is the core of USB flash disk；Flash chip circuit is essentially identical with the principle of flash memory bar in computer, is the entity preserving data, and feature is powered off rear data and will not lose, can preserve for a long time；PCB base plate is responsible for providing respective handling data platform, and is linked together by each parts.
Its basic functional principle: in USB flash disk is connected to the USB interface of host computer, the voltage of computer USB interface provides power supply by the power pin of the USB interface of USB flash disk for USB flash disk power supply circuits, produces VCC voltage.Then the data input stitch of the USB socket in usb circuit is high level, and data output pins is low level.After the USB module of computer main board detects the one high and one low level signal on data wire, it is considered as USB device and connects, send to USB device and get out signal.Then the main control chip of USB flash disk transfers the essential information in memorizer and fileinfo, is sent to the usb bus of host computer by USB interface, after host computer receives data, will point out discovery new hardware, and start to install the driver of USB flash disk.File after driver installation, during then user just sees USB flash disk memorizer.When user stores data file in USB flash disk, first main control chip detects the level signal of its write-protect port.If write-protect port is high level signal, then main control chip then sends a read-write to flash chip, and then data are stored in wherein by flash memory.If write-protect port is low level signal, then main control chip sends a write-protect signal to flash chip, and flash memory is by the storage of refusal data.USB flash disk is following certain communication protocol with main frame time mutual.
To sum up, basis is the most novel sets up infrared induction device, and after opening infrared induction device, after people is away from USB flash disk predeterminable range, infrared induction device triggers siren and reminds owner, thus reduces owner and lose the probability of USB flash disk.
Although specifically showing in conjunction with preferred embodiment and describing this utility model; but those skilled in the art should be understood that; in the spirit and scope of the present utility model limited without departing from appended claims; this utility model can be made a variety of changes in the form and details, be protection domain of the present utility model.
Claims (5)
1. an infrared induction USB flash disk, it is characterized in that: include USB flash disk memory module and infrared induction device, described infrared induction device includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, audion V1, audion V2, electric capacity C1, electric capacity C2, operational amplifier, infrared transmitting tube D1 and infrared receiving tube D2, one end of resistance R1, one end of resistance R2, first negative input end of operational amplifier, the emitter stage of audion V1, one end of resistance R5 is connected to power supply VCC, ground connection after the other end series connection infrared transmitting tube D1 of resistance R1；The other end of resistance R2 is divided into two-way, and ground connection after a road series connection infrared receiving tube D2, another road is connected to the second negative input end of operational amplifier；Electric capacity C1 is parallel to the two ends of infrared receiving tube D1；Electric capacity C2 is parallel to the two ends of infrared receiving tube D2；Ground connection after second positive input terminal series resistance R3 of operational amplifier；First positive input terminal ground connection of operational amplifier；It is connected with the base stage of audion V1 and the base stage of audion V2 after outfan series resistance R4 of operational amplifier, the colelctor electrode of audion V1 and the grounded collector of audion V2；The emitter stage of audion V2 is connected to the other end of resistance R5.
Infrared induction USB flash disk the most according to claim 1, it is characterised in that: described infrared induction device also includes switching K, switch K and is serially connected with between the input of power supply VCC and each device.
Infrared induction USB flash disk the most according to claim 1 and 2, it is characterised in that: described infrared induction device also includes that buzzer Y1, buzzer Y1 are serially connected between the emitter stage of power supply VCC and audion V1.
Infrared induction USB flash disk the most according to claim 1 and 2, it is characterised in that: described infrared induction device also includes LED light D3, and LED light D3 is serially connected between the emitter stage of resistance R5 and audion V2.
Infrared induction USB flash disk the most according to claim 1, it is characterized in that: described USB flash disk memory module includes governor circuit, filtering voltage regulation power supply circuits, flash chip circuit and crystal oscillating circuit, filtering voltage regulation power supply circuits are connected between power supply and governor circuit, and flash chip circuit and crystal oscillating circuit are all bi-directionally connected with governor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435908.XU CN205608982U (en) | 2016-05-12 | 2016-05-12 | Infra red ray induction U dish |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435908.XU CN205608982U (en) | 2016-05-12 | 2016-05-12 | Infra red ray induction U dish |
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| Publication Number | Publication Date |
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| CN205608982U true CN205608982U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620435908.XU Expired - Fee Related CN205608982U (en) | 2016-05-12 | 2016-05-12 | Infra red ray induction U dish |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625803A (en) * | 2018-05-24 | 2018-10-09 | 西安石油大学 | Oil field hydraulic Power Tong safety device |
| CN110570622A (en) * | 2019-09-10 | 2019-12-13 | 江苏创宇电器设备有限公司 | Infrared diode induction alarm circuit |
-
2016
- 2016-05-12 CN CN201620435908.XU patent/CN205608982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625803A (en) * | 2018-05-24 | 2018-10-09 | 西安石油大学 | Oil field hydraulic Power Tong safety device |
| CN110570622A (en) * | 2019-09-10 | 2019-12-13 | 江苏创宇电器设备有限公司 | Infrared diode induction alarm circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Minjun Inventor after: Lu Zhewen Inventor before: Zhang Minjun |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161008 Address after: 314000, Donggang, Zhejiang County, Jiaxing province Jiashan days condensate North Village, No. 10, No. Patentee after: Zhang Minjun Patentee after: Lu Zhewen Address before: 314000, Donggang, Zhejiang County, Jiaxing province Jiashan days condensate North Village, No. 10, No. Patentee before: Zhang Minjun |
|
| 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: 20160928 Termination date: 20170512 |