CN202383867U - Handheld laser emitter with automatic onoff function - Google Patents
Handheld laser emitter with automatic onoff function Download PDFInfo
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- CN202383867U CN202383867U CN2011205612913U CN201120561291U CN202383867U CN 202383867 U CN202383867 U CN 202383867U CN 2011205612913 U CN2011205612913 U CN 2011205612913U CN 201120561291 U CN201120561291 U CN 201120561291U CN 202383867 U CN202383867 U CN 202383867U
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- emitting device
- beam emitting
- held laser
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Abstract
The utility model discloses a handheld laser emitter with an automatic onoff function. The handheld laser emitter comprises a laser emission source, a pressure sensor and a processor, wherein the pressure sensor is used for detecting gripping pressure of hands so as to generate a corresponding pressure signal which is output to the processor; and the processor generates a control signal according to the received pressure signal, and can control onoff of the laser emission source. The handheld laser emitter provided by the utility model can perceive the gripping pressure of hands through deploying the pressure sensor, and further can judge whether the device is picked up or not, when the device is picked up, the handheld laser emitter automatically controls the laser emission source to be switched on so as to emit laser, thereby meeting the using requirements of a user; when the handheld laser emitter is laid down, the gripping pressure is disappeared, the laser emission source is automatically switched off, and the energy waste is effectively avoided; and therefore, and the handheld laser emitter provided by the utility model can realize the automatic onoff function, and provides convenience for daily use of people.
Description
Technical field
The utility model belongs to the laser beam emitting device technical field, specifically, relates to the hand-held laser beam emitting device that a kind of operating position through the identification user is accomplished switch control automatically.
Background technology
Along with the rise of shadow casting technique, hand-held laser beam emitting device has more and more in depth been come into daily life, especially uses more generally in public arenas such as teaching, meeting, speeches.Present hand-held laser beam emitting device all is designed to the passive type of controlling mostly, promptly all is on hand-held laser beam emitting device, mechanical switch key to be set, and controls hand-held laser beam emitting device and opens or close through pushing this button.This hand-held laser beam emitting device needs staff to pin this switch key in use always, and the light source in the ability control device keeps luminance; In case staff unclamps, light source will be closed immediately, stop luminous.Obviously, this control mode brings great inconvenience can for people's daily use, and power consumption is bigger, is not a kind of ideal designs mode therefore.
Summary of the invention
The utility model is in order to solve the passive hand-held laser beam emitting device inconvenient problem with use of controlling type of tradition; A kind of hand-held laser beam emitting device with auto-switch function has been proposed; Whether picked up through detecting emitter; Control emitter and open automatically or close, with easy for people to use.
For solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:
A kind of hand-held laser beam emitting device with auto-switch function comprises laser emitting source, pressure transducer and processor; Said pressure transducer detects the gripping pressure of staff, generates corresponding pressure signal and exports described processor to; Said processor produces control signal according to the pressure signal that receives, and controls said laser emitting source and opens or close.
In order to realize the drive controlling of processor, preferably adopt following two kinds of design proposals to laser emitting source:
A kind ofly be; Said processor is connected described laser emitting source through driving circuit; When processor is judged hand-held laser beam emitting device and is picked up according to the pressure signal of pressure transducer feedback; Control Driver Circuit produces the feeder ear that the WV that is used for the unlatching of driving laser emissive source exports laser emitting source to, with control laser emitting source emission laser.
Another kind is; Between said processor and laser emitting source, be connected an on-off circuit; The control side joint of said on-off circuit is received the control signal of processor output; Switch-side connects the current supply circuit of laser emitting source, through CS circuit turn-on or shutoff, controls laser emitting source energising or outage.
Further, said pressure transducer is installed in the holding area of hand-held laser beam emitting device, with the gripping pressure of accurate detection staff.
In order to improve accuracy of detection, said pressure transducer is provided with two at least, is installed in the relative both sides of holding area respectively.
Preferably, said pressure transducer preferably is provided with four, is divided into two groups of relative both sides that are installed in the holding area respectively at interval.
Further again; In said hand-held laser beam emitting device, also be provided with the sensor that is used for the pick-up unit change in displacement; Generate detection signal and export described processor to; Be subjected to displacement when changing when detecting hand-held laser beam emitting device,, can control laser emitting source equally and open automatically such as being picked up or rocking.
Preferably, the said sensor that is used for the pick-up unit change in displacement can be a gravity sensor, also can be gyroscope or acceleration transducer, and the detection signal that generates is passed through I
2C bus transfer to described processor is with the moving direction of judgment means.
Further again; In said hand-held laser beam emitting device, also be provided with the optical finger navigation module; Connect described processor, the shading touch panel of said optical finger navigation module is installed on the housing of hand-held laser beam emitting device, to gather the slip and the clicking operation of staff.
Further, on said hand-held laser beam emitting device, touch controlled key can also be set further, connect described processor through key circuit; Receive user's the instruction of controlling; After encoding via processor, export external unit to, with response user operation.
Compared with prior art; The advantage and the good effect of the utility model are: the hand-held laser beam emitting device of the utility model comes the gripping pressure of perception staff through pressure sensor; And then whether judgment means is picked up; And control its laser emitting source when device is picked up automatically and open detecting, emission laser is to satisfy user's user demand.And when hand-held laser beam emitting device was put down, because gripping pressure disappears, laser emitting source was closed automatically, has effectively avoided energy dissipation.The hand-held laser beam emitting device of the utility model is simple in structure, can carry out switch control automatically according to the operating position of human body, and is easy to use, highlighted the intellectuality and the human oriented design of product.
After the detailed description in conjunction with advantages the utility model embodiment, other characteristics of the utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the schematic block circuit diagram of a kind of embodiment of the hand-held laser beam emitting device with auto-switch function that proposes of the utility model;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of on-off circuit;
Fig. 3 is the schematic block circuit diagram of the another kind of embodiment of the hand-held laser beam emitting device with auto-switch function that proposes of the utility model;
Fig. 4 is the circuit theory diagrams between gravity sensor and the processor.
Embodiment
Describe in detail below in conjunction with the embodiment of accompanying drawing the utility model.
Embodiment one, and the hand-held laser beam emitting device of present embodiment has mainly designed laser emitting source, hand and picked up detecting unit and be used to the power module that WV respectively is provided with electric loading in the device in order to realize auto-switch function in device.Through hand pick up detecting unit in real time the detection laser emitter whether picked up or put down by staff; And then automatically control laser emitting source and open or close; The many disadvantages of having avoided traditional passive laser beam emitting device of controlling type in use to need the long-time push switch button of staff to be brought has thus greatly made things convenient for user's daily use.
In the present embodiment, said laser emitting source mainly is used for launching laser, not only can launch the ruddiness of 650nm, also can launch the laser of other wavelength, for example blue light etc.Can certainly launch multiple different wavelength of laser simultaneously, present embodiment does not specifically limit this.
Pick up the concrete establishment structure of detecting unit as hand, present embodiment proposes following two kinds of preferred design.
A kind of hand that is based on pressure transducer is picked up the detecting unit design proposal; Promptly in hand-held laser beam emitting device, set up pressure transducer 1 and processor MCU; Referring to shown in Figure 1; Detect the gripping pressure of staff through pressure transducer 1, generate corresponding pressure signal, transfer to described MCU according to the size of staff gripping pressure.MCU judges according to the force value that receives whether laser beam emitting device is picked up by staff, and then reaches the purpose of design of automatic control laser emitting source 2 switches.
In the present embodiment, said pressure transducer 1 is installed in the holding area of hand-held laser beam emitting device, preferably is laid in staff and picks up the position that Shi Douhui touches, the accurate detection of picking up with assurance device.The position that presses of pressure transducer 1 preferably exposes outside the housing 3 of hand-held laser beam emitting device, to improve the sensitivity of pressure detection.A kind of preferred design as present embodiment; A plurality of described pressure transducers 1 preferably are set on said hand-held laser beam emitting device; Be laid in the relative both sides of holding area respectively; 4 pressure transducers 1 for example are installed simultaneously; As shown in Figure 1, lay two pressure transducers 1 at interval separately in the relative both sides of hand-held laser beam emitting device holding area, the problem that can't in time open laser emitting source 2 because pressure transducer 1 is not held by the people when being picked up by staff to avoid occurring device.
Will be through pressure transducer 1 detected pressure signal via signal wire transmits to described processor MCU; MCU converts the pressure signal that receives to corresponding with it force value, compares with predefined threshold value D, if detected force value has surpassed threshold value D; Think that then staff picked up laser beam emitting device; And then produce 2 unlatchings of control signal notice laser emitting source, and outwards launch laser beam, satisfy user's user demand.If detected force value, is then thought people's laser beam emitting device that handed down less than threshold value D, promptly the user finishes using, and this moment, MCU notice laser emitting source 2 was closed, and stopped to launch laser beam, with the saveall energy.
Present embodiment adopts the design that pressure transducer 1 detected force value and predefined threshold value D are compared; Can control on the one hand hand-held laser beam emitting device and open and close automatically, can be used on the other hand preventing that children from using described laser beam emitting device according to user's actual use needs.Since children to hold strength smaller, can't reach the threshold value D of setting usually, therefore also just can't open hand-held laser beam emitting device, and then avoid the problem of device generation maloperation.
Consider generally; MCU as processor; The driving force of the control signal of its output is often smaller; Also be not enough to driving laser emissive source 2 and open, thereby present embodiment preferably sets up driving circuit between said MCU and laser emitting source 2, with the accurate drive controlling of realization laser emitting source 2.Can adopt the special driving chip to be connected between the feeder ear of MCU and laser emitting source 2 as said driving circuit; As shown in Figure 1; When MCU detected force value through pressure transducer 1 feedback greater than the threshold value D that sets, the output effective control signal was to chip for driving, and producing through chip for driving is enough to the supply voltage that driving laser emissive source 2 is lighted; Export the feeder ear of laser emitting source 2 to, control its outwards emission laser.And when MCU detects force value less than the threshold value D that sets, control signal being changed to disarmed state, the controlling and driving chip stops output, and then control laser emitting source 2 closes, and stops to launch laser.
Certainly, the form design that said driving circuit also can adopt on-off element to cooperate simple peripheral circuit to form on-off circuit realizes, specifically can the control side of on-off circuit be connected to MCU, receives the control signal of MCU output, to control its switch-side break-make; The switch-side of on-off circuit is connected in the current supply circuit of laser emitting source 2; One can or turn-off thus through the CS circuit turn-on; Come the required power supply of laser emitting source 2 work is carried out break-make control, and then realize switch control laser emitting source 2.
As a kind of preferred design of present embodiment, said on-off element preferably adopts a NPN type triode Q1, and is as shown in Figure 2; The base stage of triode Q1 is connected to MCU; Wherein one road GPIO mouth that for example connects MCU receives the control signal that MCU exports, certainly; The base stage of said triode Q1 also can further connect direct supply VCC through pull-up resistor R1, and said direct supply VCC can be provided by the direct perhaps conversion of the battery in the hand-held laser beam emitting device.With the grounded emitter of triode Q1, collector connects direct supply VCC through current-limiting resistance R2 on the one hand, connects the feeder ear of laser emitting source 2 on the other hand.When MCU detected laser beam emitting device and picked up, the output low level effective control signal was to the base stage of triode Q1, and control triode Q1 ends; At this moment; To laser emitting source 2 power supplies, open, and outwards launches laser by control laser emitting source 2 via current-limiting resistance R2 for direct supply VCC.And when MCU detects laser beam emitting device and put down, output high level effective control signal to the base stage of triode Q1, control triode Q1 saturation conduction; At this moment; The feeder ear of laser emitting source 2 is drawn as electronegative potential, and then turn-offs its output, stops outwards to launch laser.Realized thus picking up and down state, controlled the purpose of design that laser emitting source 2 opens and closes automatically according to device.
Certainly, said on-off element also can adopt components and parts such as metal-oxide-semiconductor, controllable silicon or relay to carry out the design of on-off circuit, and present embodiment is not limited in above giving an example.
The design proposal that another kind of hand is picked up detecting unit is based on the circuit design of change in displacement detecting sensor, referring to shown in Figure 3, includes the sensor and the processor MCU that are used for the perception change in displacement at least.Said sensor can be a gravity sensor; It also can be gyroscope; Can certainly be acceleration transducer,, come judgment means whether to be picked up through responding to the change in displacement of hand-held laser beam emitting device; And then through 2 unlatchings of MCU control laser emitting source or shutoff, to realize the purpose of design of hand-held laser beam emitting device according to the actual operating position automatic switch of human body.
To pick up detecting unit be that example describes to present embodiment to adopt gravity sensor to design described hand.Built-in gravity sensor in hand-held laser beam emitting device, as shown in Figure 3, said gravity sensor preferably adopts three acceleration of gravity sensors, can detect the change in displacement of device in real time.Its principle of work is: when hand-held laser beam emitting device was picked up by staff, certain variation can take place in its gravity, and through built-in this variation of gravity sensor perception, and generation relevant detection signal exports MCU to.Whether said MCU is according to detected Gravity changer scope, through comparing with predefined threshold value A, and then judge hand-held laser beam emitting device and picked up.Specifically; Can come judgment means whether to be picked up perpendicular to the acceleration of gravity of surface level direction through detecting this device; Just utilize the gravity acceleration value and the threshold value A of the Z-direction of gravity sensor feedback to compare, think that then device is picked up if surpass threshold value A.At this moment, MCU exports effective control signal, and control laser emitting source 2 is opened, and emission laser is to satisfy user's user demand.In a period of time; If MCU detects the changing value of gravity less than another preset less threshold value B through gravity sensor; Hand-held laser beam emitting device is not used in then thinking during this period of time, at this moment, and the control signal that MCU output is invalid; Control laser emitting source 2 is closed, and stops to launch laser.Adopt such design can reduce the lasting fluorescent lifetime of hand-held laser beam emitting device, when hand-held laser beam emitting device is idle, close laser emitting source 2,, reduce power consumption with saves energy.
The physical circuit annexation of gravity sensor and MCU is referring to shown in Figure 4, and wherein, U1 is a processor MCU, and U2 is a gravity sensor.Gravity sensor U2 passes through I
2The C bus is connected communication with MCU, MCU can pass through I on the one hand
2The C bus is carried out the configuration of parameters to gravity sensor U2, for example its induction sensitivity is provided with etc.; On the other hand, the detection signal that generates through gravity sensor U2 induction can be via I
2Whether the C bus feeds back to MCU, picked up to be used to discerning hand-held laser beam emitting device.At said I
2Can further connect the voltage pull-up circuit of forming by resistance R 5-R10 and direct supply VCC on the C bus, to guarantee the accuracy of data transmission.
For the not enough MCU of interface driving force; Then can between MCU and laser emitting source 2, further set up driving circuit; Produce the supply voltage that is enough to 2 unlatchings of driving laser emissive source through driving circuit, export the feeder ear of laser emitting source 2 to, to control its outwards emission laser.Concrete teaming method for driving circuit; The design that can adopt chip for driving or on-off circuit is connected in the current supply circuit of laser emitting source 2 realizes; Promptly as above-mentioned first kind of hand to pick up in the detecting unit design of driving circuit identical, present embodiment is not done repeat specification at this.Certainly, said driving circuit also is not limited only to above-mentioned two kinds of design proposals, and present embodiment does not specifically limit this.
Consider that the user can't continue to use this device for a long time after picking up laser beam emitting device, only meeting some position time point light laser emissive source 2 on the projection screen that requires emphasis is controlled it to this position emission laser.Therefore, for the saveall energy, present embodiment also further is provided with in said laser beam emitting device and rocks detection module, is used to detect rocking of staff.Sense laser beam emitting device and in a period of time, keep static or unidirectional lentamente when mobile when rocking detection module, think that the user need not use laser beam emitting device this moment, then control laser emitting source 2 and close, avoid energy dissipation; And when the user need reuse this laser beam emitting device, then can control it and open again through rocking this device.
As a kind of preferred design of present embodiment, the said detection module that rocks preferably adopts gyroscope to come the moving direction of perception staff, and is as shown in Figure 3.Gyroscope is built in the housing of laser beam emitting device, and is connected with MCU through signal wire.Through the gyroscope moving direction of sensing device in real time, the coordinate information that specifically can utilize gyroscope to feed back to MCU calculates the moving direction and the translational speed of device.The moving direction of device has taken place repeatedly to change if MCU detects at short notice, thinks that then device is rocked, and exports effective control signal control laser emitting source 2 immediately and opens again, satisfies user's the demand that reuses; If detect device only is that simple unidirectional mobile perhaps moving direction slowly changes, and then keeps the closed condition of laser emitting source 2, with save power.
Thus; The user is in the process that hand-held this laser beam emitting device uses; Can control the laser emitting source 2 that gets into energy-saving mode through rocking of staff and open again, greatly make things convenient for user's while used in everyday, realize the self-adaptation of device, intelligent control.
In order to make the user can operate and control the video signal source on backstage through this hand-held laser beam emitting device; For example between a plurality of video signal sources, switch, control of video program F.F. or retreat etc.; Present embodiment also is provided with touch-control module on said hand-held laser beam emitting device; For example touch controlled key K1-K3, optical finger navigation module OFN or directionkeys etc. can be set, referring to shown in Figure 4.Wherein, the shading touch panel of said touch controlled key K1-K3, optical finger navigation module OFN or directionkeys etc. preferably are laid on the place ahead housing of laser beam emitting device holding area, with user-friendly.Touch controlled key K1-K3 can be connected described MCU through key circuit with directionkeys, realizes that MCU controls the identification of instruction to the user; Optical finger navigation module OFN can connect described MCU through universal serial bus, exports the sliding trace coordinate data of pointing to identification that MCU carries out user instruction.
When the user needs switching signal source or the F.F. of control of video program, when retreating, can use finger on OFN, to slide.OFN detects the track that finger slips over, and exports MCU to and calculates displacement, and compare with the threshold value C that sets; If surpass threshold value C; Think that then finger has slided, generate and to operate pairing order number, export communication interface circuit to; And then transfer to outside video signal source opertaing device, respond user's operation.In the present embodiment, said communication interface circuit can adopt communication modes such as wire transmission or wireless transmission to realize and the data interaction of outer video signal source opertaing device that present embodiment does not specifically limit this.Certainly, also can adopt directionkeys to replace OFN to be laid on the hand-held laser beam emitting device, realize identical control effect through the direction of operating key.
The user is when operation OFN, and for fear of the conflict of related system instruction, the hand-held laser emitting source of control is closed, and to reach the effect by OFN control, can reduce the fluorescent lifetime of laser simultaneously, reaches certain energy-saving effect equally.Based on same reason, when pressing other direction class button, laser beam emitting device also can stop the emission of laser, and still, the affirmation button in the operation touch controlled key does not influence the emission of laser.
In addition; When MCU detects on the shading touch panel of user at OFN when carrying out single-click operation; Can regulate the shape attribute of the laser facula that laser emitting source sends, promptly control the variform laser beam of laser emitting source launch spot, for controlling schemes is provided alternately.
The hand-held laser beam emitting device of present embodiment is initiatively discerned user's user mode through the built-in sensitive device, realizes the automatic switch control of laser beam emitting device, when being user-friendly to, has obvious energy-saving effect.
Certainly; The above only is a kind of preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. the hand-held laser beam emitting device with auto-switch function is characterized in that: comprise laser emitting source, pressure transducer and processor; Said pressure transducer detects the gripping pressure of staff, generates corresponding pressure signal and exports described processor to; Said processor produces control signal according to the pressure signal that receives, and controls said laser emitting source and opens or close.
2. the hand-held laser beam emitting device with auto-switch function according to claim 1; It is characterized in that: said processor connects described laser emitting source through driving circuit, and control Driver Circuit produces the feeder ear that the WV that is used for the unlatching of driving laser emissive source exports laser emitting source to.
3. the hand-held laser beam emitting device with auto-switch function according to claim 1; It is characterized in that: between said processor and laser emitting source, be connected with an on-off circuit; The control side joint of said on-off circuit is received the control signal of processor output; Switch-side connects the current supply circuit of laser emitting source, control laser emitting source break-make.
4. according to each described hand-held laser beam emitting device with auto-switch function in the claim 1 to 3, it is characterized in that: said pressure transducer is installed in the holding area of hand-held laser beam emitting device.
5. the hand-held laser beam emitting device with auto-switch function according to claim 4 is characterized in that: said pressure transducer is provided with two at least, is installed in the relative both sides of holding area respectively.
6. the hand-held laser beam emitting device with auto-switch function according to claim 5, it is characterized in that: said pressure transducer is provided with four, is divided into two groups of relative both sides that are installed in the holding area respectively at interval.
7. the hand-held laser beam emitting device with auto-switch function according to claim 4; It is characterized in that: in said hand-held laser beam emitting device, also be provided with the sensor that is used for the pick-up unit change in displacement, generate detection signal and export described processor to.
8. the hand-held laser beam emitting device with auto-switch function according to claim 7 is characterized in that: the said sensor that is used for the pick-up unit change in displacement is gravity sensor, gyroscope or acceleration transducer, and the detection signal that generates is passed through I
2C bus transfer to described processor.
9. the hand-held laser beam emitting device with auto-switch function according to claim 4; It is characterized in that: in said hand-held laser beam emitting device, also be provided with the optical finger navigation module; Connect described processor, the shading touch panel of said optical finger navigation module is installed on the housing of hand-held laser beam emitting device.
10. the hand-held laser beam emitting device with auto-switch function according to claim 9 is characterized in that: on said hand-held laser beam emitting device, also be provided with touch controlled key, connect described processor through key circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205612913U CN202383867U (en) | 2011-12-29 | 2011-12-29 | Handheld laser emitter with automatic onoff function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205612913U CN202383867U (en) | 2011-12-29 | 2011-12-29 | Handheld laser emitter with automatic onoff function |
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| Publication Number | Publication Date |
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| CN202383867U true CN202383867U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205612913U Expired - Fee Related CN202383867U (en) | 2011-12-29 | 2011-12-29 | Handheld laser emitter with automatic onoff function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765891A (en) * | 2017-10-19 | 2018-03-06 | 广东小天才科技有限公司 | The control method and microphone of a kind of microphone |
| CN108710440A (en) * | 2017-04-06 | 2018-10-26 | 原相科技股份有限公司 | interactive system and handheld device thereof |
-
2011
- 2011-12-29 CN CN2011205612913U patent/CN202383867U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710440A (en) * | 2017-04-06 | 2018-10-26 | 原相科技股份有限公司 | interactive system and handheld device thereof |
| CN108710440B (en) * | 2017-04-06 | 2021-07-27 | 原相科技股份有限公司 | Interactive system and handheld device thereof |
| CN107765891A (en) * | 2017-10-19 | 2018-03-06 | 广东小天才科技有限公司 | The control method and microphone of a kind of microphone |
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Granted publication date: 20120815 Termination date: 20191229 |