【The content of the invention】
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and provide a kind of non-contactFormula light data transmits reading system and transmission read method, it is possible to achieve middle distance accurately reads data, when accurately reading dataThere is aiming positioning instruction, have the advantages that high sensitivity and anti-interference are good.
The present invention solves the technical scheme that the technical problem uses：
A kind of contactless optical data transfer is provided and reads system, including data conversion module, data transmission module sumAccording to receiving module, and respectively described data conversion module, data transmission module and data reception module provide the electricity of electric powerSource module；The data conversion module electrically connects with the data transmission module and data reception module respectively；It is described non-contactFormula light data transmission reading system also includes carrying out aiming at positioning by tested instrument and guides direction to the data transmission moduleAiming locating module；The power module returns the aiming locating module and provides electric power；The data transmission module includesCommunicate the communication laser transmitting tube D2 sent；The locating module that aims at has included aiding in the auxiliary aiming of aiming positioning action to swashLight-emitting tube D1；The auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 works simultaneously, and the auxiliary, which aims at, to swashLight-emitting tube D1 send visible ray by tested instrument carry out aim at positioning and to the data transmission module communication laser launchPipe D2 guides direction, and the communication laser transmitting tube D2 sends auxiliary aiming laser of the black light in the aiming locating moduleTransmitting tube D1 sends and carries out communication transmission exactly under the guide of visible ray.The data conversion module, which receives, reads equipment hairAfter the instruction of the tested instrument data of reading sent, the data conversion module is transferred to the data and launched after the instruction is changedModule, it is described aim at locating module auxiliary aiming laser transmitting tube D1 send visible ray by tested instrument carry out aim at positioning andCommunication laser transmitting tube D2 to the data transmission module guides direction, the communication laser transmitting tube of the data transmission moduleIt is accurate under the guide that the auxiliary aiming laser transmitting tube D1 of the aiming locating module sends visible ray that D2 sends black lightThe instruction is sent to tested instrument by ground, and tested instrument sends the data to the data reception module after receiving the instruction,The data reception module gives data back to the data conversion module, and then the data conversion module sends the dataTo the reading equipment.
What the visible ray and the communication laser transmitting tube D2 that the auxiliary aiming laser transmitting tube D1 is sent were sent can notSee light for two beams directional light close to each other.
The auxiliary aiming laser transmitting tube D1 sends the spot center point of visible ray and the communication laser transmitting tube D2Sending the distance between spot center point of black light is：Lighted apart from them at 1 meter of starting point, the light of two beam directional lightsThe distance between spot central point is not more than 1.5 centimetres；Lighted apart from them at 3 meters of starting point, in the hot spot of two beam directional lightsThe distance between heart point is not more than 2.0 centimetres, is lighted apart from them at 5 meters of starting point, the spot center point of two beam directional lightsThe distance between be not more than 3.0 centimetres.
The auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 is fixed on same support, the supportOn be provided with the first through hole being parallel to each other and the second through hole, the auxiliary aiming laser transmitting tube D1 is fixed on the supportIn first through hole, the communication laser transmitting tube D2 is fixed in the second through hole of the support.
The distance between the central axis of the central axis of the first through hole of the support and the second through hole L is：R1+R2≤L≤R1+R2+ 10 millimeters, wherein R1For the radius of first through hole, R2For the radius of the second through hole.
The data conversion module includes the first integrated circuit U1, first integrated circuit U1 model 74HC02.InstituteStating data reception module includes reception pipe D3, reception pipe D3 model TSOP1838.
The data conversion module includes the first integrated circuit U1 and the first peripheral circuit；First peripheral circuit includesThree resistance R1, R2, R3 and two electric capacity C1, C2, and a crystal oscillator Y1；The model of the first integrated circuit U174HC02；The first pin of the first integrated circuit U1 is electrically connected to the first integrated circuit U1 by resistance R1, R2 respectivelyThe 3rd pin and the 6th pin, the crus secunda of the first integrated circuit U1 is grounded by electric capacity C1, the first integrated circuit U1Crus secunda and the 3rd pin be connected, the 3rd pin and the 5th pin of the first integrated circuit U1 are electrically connected with crystal oscillator Y1, describedFirst integrated circuit U1 the 4th pin and octal is connected, and the 5th pin and the 6th pin of the first integrated circuit U1 are connectedConnect, the 6th pin of the first integrated circuit U1 is grounded by electric capacity C2, the 7th pin ground connection of the first integrated circuit U1, instituteState that the first integrated circuit U1 the 11st pin, the 12nd pin and the 13rd pin are hanging, the 14th of the first integrated circuit U1 thePin is electrically connected to the output pin of the power module, and the 9th pin of the first integrated circuit U1 forms first segment by resistance R3Point.The data transmission module also includes the second peripheral circuit, and second peripheral circuit includes a resistance R5 and three polesPipe Q1；The triode Q1 is NPN type triode, its model 8050；The positive pole of the communication laser transmitting tube D2 passes through electricityResistance R5 is electrically connected to the output pin of the power module, and communication laser transmitting tube D2 negative pole is electrically connected to triode Q1 hairEmitter-base bandgap grading, triode Q1 grounded collector, triode Q1 base stage are electrically connected to the first integrated electricity of the data conversion moduleRoad U1 the tenth pin.The data reception module includes reception pipe D3 and the 3rd peripheral circuit, and the 3rd peripheral circuit includes twoIndividual resistance R6, R7 and two electric capacity C3, C4；The model TSOP1838 of the reception pipe D3；The first pin of the reception pipe D3Section point is formed by resistance R7, the section point is connected with first node, the crus secunda ground connection of the reception pipe D3, instituteThe 3rd pin for stating reception pipe D3 is electrically connected to the output pin of the power module, the 3rd pin of the reception pipe D3 by resistance R6Also it is grounded by electric capacity C4, electric capacity C3 is connected electrically between resistance R6 and ground.The aiming locating module also includes 4th week sideCircuit, the 4th week side circuit include a resistance；The negative pole ground connection of the auxiliary aiming laser transmitting tube D1, the auxiliary aim atLASER Discharge Tube D1 positive pole is electrically connected to the output pin of the power module by resistance R4.
A kind of contactless optical data transfer read method is also provided, comprised the following steps：Data conversion module is set, shouldData conversion module receives the instruction for reading the tested instrument data of reading that equipment is sent；Data transmission module, the data are setTransmitter module includes sending the communication laser transmitting tube D2 that black light carries out communication transmission；Data reception module 300 is set；IfPut the aiming locating module that tested instrument is subjected to aiming positioning and direction is guided to the data transmission module, aiming positioningModule included auxiliary aim at positioning action auxiliary aiming laser transmitting tube D1, make the auxiliary aiming laser transmitting tube D1 withCommunication laser transmitting tube D2 works simultaneously, and the auxiliary aiming laser transmitting tube D1 is sent visible ray and carry out tested instrumentAim at positioning and the communication laser transmitting tube D2 to the data transmission module guides direction；And it is respectively the data to setModular converter, data transmission module, data reception module and the power module that locating module offer electric power is provided；By the dataModular converter electrically connects with the data transmission module and data reception module respectively.The data conversion module receives readingAfter the instruction for the tested instrument data of reading that equipment is sent, the data conversion module is transferred to the number after the instruction is changedAccording to transmitter module, the auxiliary aiming laser transmitting tube D1 for aiming at locating module sends visible ray and is aimed at tested instrumentPositioning and the communication laser transmitting tube D2 guides direction to the data transmission module, the communication laser of the data transmission moduleTransmitting tube D2 sends the guide that black light sends visible ray in the auxiliary aiming laser transmitting tube D1 of the aiming locating moduleUnder exactly by it is described instruction be sent to tested instrument, tested instrument sends the data to the data receiver after receiving the instructionModule, the data reception module give data back to the data conversion module, and then the data conversion module counts thisAccording to being sent to the reading equipment.
The auxiliary aiming laser transmitting tube D1 visible rays sent and the communication laser transmitting tube D2 are sent notVisible ray is tuned into two beam directional lights, and makes the two beams directional light close to each other.
The auxiliary aiming laser transmitting tube D1 is sent into the spot center point of visible ray and the communication laser transmitting tubeD2 sends the distance between spot center point of black light and is adjusted to：Lighted apart from them at 1 meter of starting point, two beams are parallelThe distance between spot center point of light is not more than 1.5 centimetres；Lighted apart from them at 3 meters of starting point, two beam directional lightsThe distance between spot center point is not more than 2.0 centimetres, is lighted apart from them at 5 meters of starting point, the hot spot of two beam directional lightsThe distance between central point is not more than 3.0 centimetres.
The auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 is fixed on same support, the branchThe first through hole being parallel to each other and the second through hole are provided with frame, the auxiliary aiming laser transmitting tube D1 is fixed on the supportFirst through hole in, the communication laser transmitting tube D2 is fixed in the second through hole of the support；The first of the support is logicalThe distance between the central axis of the central axis in hole and the second through hole L is：R1+R2≤L≤R1+R2+ 10 millimeters, wherein R1ForThe radius of one through hole, R2For the radius of the second through hole.
Compared with the existing technology compared with contactless optical data transfer of the present invention reads system and transmits the beneficial of read methodEffect is：
First, the communication laser transmitting tube of data transmission module black light of the invention replaces the normal light of prior artElectric diode, when LASER Discharge Tube transmits, the decay very little of light, therefore can greatly improve the distance of reading；And laserTransmitting tube has good spotlight effect, and the angular sent out is small, can reduce read range, and it is same to avoid multiple tested instrumentsWhen respond, improve anti-interference；
2nd, particularly it is additionally provided with and carries out aiming at positioning by tested instrument and guide taking aim at for direction to the data transmission moduleQuasi- locating module, the aiming locating module have included the auxiliary aiming laser transmitting tube that auxiliary aims at positioning action, have utilized auxiliaryThe visible ray that aiming laser transmitting tube is sent is taken aim at for the black light that the communication laser transmitting tube of data transmission module is sentCertainly position, the place pointed by the visible ray that sends of auxiliary aiming laser transmitting tube be exactly communication laser transmitting tube send can notSee the place pointed by light, communication laser transmitting tube is served and aims at positioning action well.
In summary, contactless optical data transfer of the present invention reads system and transmits distance during read method can be realizedIt is accurate to read data, there is aiming positioning instruction when accurately reading data, have the advantages that high sensitivity and anti-interference are good.
【Embodiment】
The present invention is described in further detail with reference to each accompanying drawing.
Referring to Fig. 1 to Fig. 6, the present invention relates to a kind of contactless optical data transfer to read system, including data conversion mouldBlock 100, data transmission module 200 and data reception module 300, and the transmitting of respectively described data conversion module 100, dataModule 200 and data reception module 300 provide the power module 400 of electric power, and the power module 400 can provide 3.3 volts straightFlow voltage；The data conversion module 100 electrically connects with the data transmission module 200 and data reception module 300 respectively；InstituteState contactless optical data transfer and read system also including carrying out tested instrument to aim at positioning and to the data transmission module200 guide the aiming locating module 600 in direction；The power module 400 returns the aiming locating module 600 and provides electric power；The data transmission module 200 includes the communication laser transmitting tube D2 that communication is sent；The aiming locating module 600 has included auxiliaryHelp the auxiliary aiming laser transmitting tube D1 for aiming at positioning action；The auxiliary aiming laser transmitting tube D1 and communication laser transmitting tubeD2 works simultaneously, can be carried simultaneously to auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 by power module 400Power supply power realizes that the auxiliary aiming laser transmitting tube D1 sends visible ray and tested instrument is carried out into aiming positioning and to describedThe communication laser transmitting tube D2 of data transmission module 200 guides direction, and the communication laser transmitting tube D2 sends black light and existedThe auxiliary aiming laser transmitting tube D1 for aiming at locating module 600 is sent carries out communication hair exactly under the guide of visible raySend.After the data conversion module 100 receives the instruction for reading the tested instrument data of reading that equipment 500 is sent, the numberThe data transmission module 200 is transferred to after the instruction is changed according to modular converter 100, it is described to aim at the auxiliary of locating module 600Help aiming laser transmitting tube D1 to send visible ray to carry out tested instrument to aim at positioning and to the logical of the data transmission module 200Believe that LASER Discharge Tube D2 guides direction, the communication laser transmitting tube D2 of the data transmission module 200 sends black light in instituteState and aim at the auxiliary aiming laser transmitting tube D1 of locating module 600 and send under the guide of visible ray exactly by the instruction transmissionTo tested instrument, tested instrument sends the data to the data reception module 300, the data reception after receiving the instructionBlock 300 gives data back to the data conversion module 100, and then the data conversion module 100 sends the data to instituteState and read equipment 500.
Data conversion module 100, data reception module 300 and the power module 400 of the present invention is all prior art, hereinRepeat no more；Certainly the data conversion module 100 of the present invention and data reception module 300 can also be respectively adopted in Fig. 4 and Fig. 5Physical circuit figure, be described in detail below；The present invention data transmission module 200 except communication laser transmitting tube D2 with it is existingThe general photodiode of technology is different outer, the operation principle of the data transmission module 200 of its operation principle and prior artEqually, also repeat no more herein.
Together with the contactless optical data transfer reading system of the present invention can directly design with reading equipment 500, itsMiddle data conversion module 100 electrically connects with reading the control circuit of equipment 500.Read equipped with contactless optical data transfer of the present inventionThe reading equipment 500 of system is taken to can be used for reading the data on the instruments such as ammeter, water meter or gas meter.Above-mentioned ammeter, water meterOr be also required on the tested instrument such as gas meter equipped with receiving module and transmitter module etc., they are not belonging to the protection model of the present inventionFarmland, also repeat no more herein.
It can be a kind of PDA to read equipment 500, and PDA is English " Personal Digital Assistant " contractingWrite, literally mean " personal digital assistant ", some is also known as " palm PC " " handheld device ".
What the visible ray and the communication laser transmitting tube D2 that the auxiliary aiming laser transmitting tube D1 is sent were sent can notSee light for two beams directional light close to each other.
The auxiliary aiming laser transmitting tube D1 sends the spot center point of visible ray and the communication laser transmitting tube D2Sending the distance between spot center point of black light is：Lighted apart from them at 1 meter of starting point, the light of two beam directional lightsThe distance between spot central point is not more than 1.5 centimetres；Lighted apart from them at 3 meters of starting point, in the hot spot of two beam directional lightsThe distance between heart point is not more than 2.0 centimetres, is lighted apart from them at 5 meters of starting point, the spot center point of two beam directional lightsThe distance between be not more than 3.0 centimetres.In general, aiming laser transmitting tube D1 luminous starting point and communication laser will be aided inTransmitting tube D2 luminous starting point is adjusted to same horizontal line, and a little bit poorer relation of their phases is also little certainly；They light outHair point is most it can be appreciated that auxiliary aiming laser transmitting tube D1 laser head and/or communication laser transmitting tube D2 laser headAmount will aid in aiming laser transmitting tube D1 laser head and communication laser transmitting tube D2 laser head to align and install, and be located at themSame horizontal line.
Referring to Fig. 2, Fig. 3 and Fig. 5, the auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 is fixed on sameOn individual support 900, the through hole 920 of first through hole 910 and second being parallel to each other is provided with the support 900, the auxiliary is taken aim atQuasi- LASER Discharge Tube D1 is fixed in the first through hole 910 of the support 900, and the communication laser transmitting tube D2 is fixed on describedIn second through hole 920 of support 900.The center of the central axis of the first through hole 910 of the support 900 and the second through hole 920The distance between axis L is：R1+R2≤L≤R1+R2+ 10 millimeters, wherein R1For the radius of first through hole 910, R2For the second through hole920 radius.Together with if the contactless optical data transfer reading system of the present invention directly designs with reading equipment 500,Support 900 can be fixed in the housing for reading equipment 500.
Referring to Fig. 1 and Fig. 4, the data conversion module 100 includes the first integrated circuit U1, first integrated circuit U1'sModel 74HC02.
Referring to Fig. 1 and Fig. 6, the data reception module 300 includes reception pipe D3, reception pipe D3 modelTSOP1838。
Referring to Fig. 1 to Fig. 6, below system is just read to describe contactless optical data transfer of the present invention with a physical circuitSystem.
The data conversion module 100 includes the first integrated circuit U1 and the first peripheral circuit；First peripheral circuitIncluding three resistance R1, R2, R3 and two electric capacity C1, C2, and a crystal oscillator Y1；The model of the first integrated circuit U174HC02；The first pin 1Y of the first integrated circuit U1 is electrically connected to first integrated circuit by resistance R1, R2 respectivelyU1 the 3rd pin 1B and the 6th pin 2B, the crus secunda 1A of the first integrated circuit U1 are grounded by electric capacity C1, first collectionCrus secunda 1A and the 3rd pin 1B into circuit U 1 are connected, and the 3rd pin 1B and the 5th pin 2A of the first integrated circuit U1 are electrically connectedCrystal oscillator Y1 is connected to, the 4th the pin 2Y and octal 3A of the first integrated circuit U1 is connected, the first integrated circuit U1's5th pin 2A and the 6th pin 2B are connected, and the 6th pin 2B of the first integrated circuit U1 is grounded by electric capacity C2, and described firstIntegrated circuit U1 the 7th pin GND ground connection, the 11st pin 4A, the 12nd pin 4B and the 13rd pin of the first integrated circuit U14Y is hanging, and the 14th pin VCC of the first integrated circuit U1 is electrically connected to the output pin VCC of the power module 400, describedFirst integrated circuit U1 the 9th pin 3B forms first node UART TXD by resistance R3.The data transmission module 200 wrapsCommunication laser transmitting tube D2 and the second peripheral circuit that communication is sent are included, second peripheral circuit includes a resistance R5 and oneTriode Q1；The triode Q1 is NPN type triode, its model 8050；The positive pole of the communication laser transmitting tube D2 leads toThe output pin VCC that resistance R5 is electrically connected to the power module 400 is crossed, the negative pole of the communication laser transmitting tube D2 is electrically connected to threePole pipe Q1 emitter E, triode Q1 colelctor electrode C ground connection, triode Q1 base stage B are electrically connected to the data conversion module100 the first integrated circuit U1 the tenth pin 3Y；Auxiliary aiming laser transmitting tube D1 is fixed on the first through hole 910 of support 900It is interior.The data reception module 300 includes reception pipe D3 and the 3rd peripheral circuit, and the 3rd peripheral circuit includes two resistanceR6, R7 and two electric capacity C3, C4；The model TSOP1838 of the reception pipe D3；The first pin of the reception pipe D3 passes through electricityResistance R7 forms section point UART RXD, section point UART RXD and first node UART TXD and is connected, the receptionPipe D3 crus secunda ground connection, the 3rd pin of the reception pipe D3 are electrically connected to the output of the power module 400 by resistance R6Pin VCC, the 3rd pin of the reception pipe D3 are also grounded by electric capacity C4, and electric capacity C3 is connected electrically between resistance R6 and ground, alsoIt is that electric capacity C3 is connected electrically between the output pin VCC of power module 400 and ground, reception pipe D3 the first pin is output pin.InstituteState and aim at auxiliary aiming laser transmitting tube D1 and 4th week side circuit that locating module 600 has included aiding in aiming positioning action,The 4th week side circuit includes a resistance R4；The negative pole ground connection of the auxiliary aiming laser transmitting tube D1, the auxiliary, which aims at, to swashLight-emitting tube D1 positive pole is electrically connected to the output pin VCC of the power module 400 by resistance R4；Communication laser transmitting tube D2It is fixed in the second through hole 920 of support 900.
Referring to Fig. 1 to Fig. 6, the invention further relates to a kind of contactless optical data transfer read method, comprise the following steps：
Data conversion module 100 is set, and the data conversion module 100 receives the tested instrument of reading for reading that equipment 500 is sentThe instruction of device data；
Data transmission module 200 is set, and the data transmission module 200 carries out the logical of transmission that communicate including sending black lightBelieve LASER Discharge Tube D2；
Data reception module 300 is set；
The aiming positioning mould that tested instrument is carried out into aiming positioning and direction is guided to the data transmission module 200 is setBlock 600, the aiming locating module 600 have included the auxiliary aiming laser transmitting tube D1 that auxiliary aims at positioning action, made described auxiliaryHelp aiming laser transmitting tube D1 and communication laser transmitting tube D2 while work, and send the auxiliary aiming laser transmitting tube D1Visible ray carries out tested instrument to aim at positioning and communication laser transmitting tube D2 guide sides to the data transmission module 200To；
And the respectively data conversion module 100, data transmission module 200, data reception module 300 are set and taken aim atQuasi- locating module 600 provides the power module 400 of electric power；
The data conversion module 100 is electrically connected with the data transmission module 200 and data reception module 300 respectivelyConnect；
After the data conversion module 100 receives the instruction for reading the tested instrument data of reading that equipment 500 is sent, instituteState and the data transmission module 200 is transferred to after data conversion module 100 changes the instruction, the aiming locating module 600Auxiliary aiming laser transmitting tube D1 send visible ray and carry out tested instrument to aim at positioning and to the data transmission module 200Communication laser transmitting tube D2 guide direction, the communication laser transmitting tube D2 of the data transmission module 200 sends black lightExactly by the instruction under the guide that the auxiliary aiming laser transmitting tube D1 of the aiming locating module 600 sends visible rayTested instrument is sent to, tested instrument sends the data to the data reception module 300 after receiving the instruction, and the data connectReceive module 300 and give data back to the data conversion module 100, then the data conversion module 100 sends the dataTo the reading equipment 500.
The auxiliary aiming laser transmitting tube D1 visible rays sent and the communication laser transmitting tube D2 are sent notVisible ray is tuned into two beam directional lights, and makes the two beams directional light close to each other.
The auxiliary aiming laser transmitting tube D1 is sent into the spot center point of visible ray and the communication laser transmitting tubeD2 sends the distance between spot center point of black light and is adjusted to：Lighted apart from them at 1 meter of starting point, two beams are parallelThe distance between spot center point of light is not more than 1.5 centimetres；Lighted apart from them at 3 meters of starting point, two beam directional lightsThe distance between spot center point is not more than 2.0 centimetres, is lighted apart from them at 5 meters of starting point, the hot spot of two beam directional lightsThe distance between central point is not more than 3.0 centimetres.
The auxiliary aiming laser transmitting tube D1 and communication laser transmitting tube D2 is fixed on same support 900, instituteState the through hole 920 of first through hole 910 and second for being provided with and being parallel to each other on support 900, the auxiliary aiming laser transmitting tube D1It is fixed in the first through hole 910 of the support 900, the communication laser transmitting tube D2 is fixed on the second of the support 900In through hole 920；The distance between central axis of the central axis of the first through hole 910 of the support 900 and the second through hole 920L is：R1+R2≤L≤R1+R2+ 10 millimeters, wherein R1For the radius of first through hole 910, R2For the radius of the second through hole 920.
Communication laser transmitting tube D2 of the present invention can use the LASER Discharge Tube for meeting following technical requirements, the communication laserTransmitting tube D2 power output is not more than 7mW（Milliwatt）, at 1 meter of the luminous starting point apart from communication laser transmitting tube D2,Communication laser transmitting tube D2 effective light spot diameter is not more than 12 centimetres；Apart from communication laser transmitting tube D2 it is luminous go outAt 3 meters of hair point, communication laser transmitting tube D2 effective light spot diameter is not more than 14 centimetres；Apart from the communication laser transmitting tubeAt D2 5 meters of luminous starting point, communication laser transmitting tube D2 effective light spot diameter is not more than 18 centimetres.Such as using one kind980nm (nanometer), 5 mW（Milliwatt）Black light infrared laser transmitting tube.
Present invention auxiliary aiming laser transmitting tube D1 can use the LASER Discharge Tube for meeting following technical requirements, the auxiliaryAiming laser transmitting tube D1 power output is not more than 7mW（Milliwatt）, apart from the luminous of auxiliary aiming laser transmitting tube D1At 5 meters of starting point, auxiliary aiming laser transmitting tube D1 effective light spot diameter is not less than 0.5 centimetre.Such as use a kind of diameterIt is that 3.8 millimeters and power are 7 mW（Milliwatt）Laser head, the laser head send visible ray carry out laser positioning.
Contactless optical data transfer of the present invention reads system and transmits the communication laser hair of read method black lightThe general photodiode that pipe D2 replaces prior art is penetrated, when LASER Discharge Tube D2 is transmitted, the decay very little of light, therefore can poleThe distance that big raising is read；And LASER Discharge Tube D2 has good spotlight effect, the angular sent out is small, can reduceRead range, avoid multiple tested instruments while respond, improve anti-interference；Particularly also using aiding in aiming laser to send outPenetrate the visible ray that pipe D1 is sent and carry out aiming positioning, auxiliary aiming laser hair for the black light that communication laser transmitting tube D2 is sentIt is exactly the place pointed by the black light that communication laser transmitting tube D2 is sent to penetrate the place pointed by the visible ray that pipe D1 is sent,Communication laser transmitting tube D2 is served and aims at positioning action well.
Contactless optical data transfer of the present invention reads system and transmits the hand-held PDA productions that read method is used for the applicantOn product, good technique effect is achieved, it is deep to be liked by numerous clients.
Embodiment described above only expresses the preferred embodiment of the present invention, and its description is more specific and detailed, but simultaneouslyTherefore the limitation to the scope of the claims of the present invention can not be interpreted as;It should be appreciated that for one of ordinary skill in the artFor, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present inventionProtect scope;Therefore, all equivalents done with scope of the invention as claimed and modification, all should belong to the claims in the present inventionCovering scope.