CN2786709Y - Auto-induction bar code scanner - Google Patents
Auto-induction bar code scanner Download PDFInfo
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- CN2786709Y CN2786709Y CN 200520056761 CN200520056761U CN2786709Y CN 2786709 Y CN2786709 Y CN 2786709Y CN 200520056761 CN200520056761 CN 200520056761 CN 200520056761 U CN200520056761 U CN 200520056761U CN 2786709 Y CN2786709 Y CN 2786709Y
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- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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Abstract
The utility model relates to an automatically inducting bar code scanner. A scanning head, a main body and a connecting cable are assembled into one body, wherein an engine plate is arranged in the scanning head. An infrared induced circuit and a laser code reading circuit which are mutually associated are arranged on the engine plate. A decoding plate which is associated with the infrared induced circuit and the laser code reading circuit is arranged in the main body. The infrared induced circuit comprises a CPU, an infrared emission unit, an infrared receiving unit, a signal amplifying unit and an electric level comparing unit, wherein the signal amplifying unit and the electric level comparing unit are arranged between the infrared receiving unit and the CPU. Infrared rays pass through the signal amplifying unit and the electric level comparing unit after received by the infrared receiving unit. Infrared electric level signals are transmitted to the CPU to carry out judgment. The decoding plate which is mutually associated with the CPU is controlled by the CPU and simultaneously feed back laser control signals to the CPU and the laser code reading circuit to control the infrared rays and laser to be emitted at different time in order to avoid code reading from interference.
Description
Technical field
The utility model relates to barcode scanner, refers to a kind of automatic induction barcode scanner that adopts infrared detection technology to carry out object identification especially.
Background technology
Barcode scanner has been widely used in the every field at present, for example in occasions such as department store, supermarket, commodity sales field, handling of goods and materials, generally adopt barcode scanner as electronic assistance aids, by assisting of this barcode scanner, make that the staff can be rapidly and read price and other information thereof of every product efficiently, the calculation process of matching computer again, and reach the effect of saving manpower, satisfied the demand of automatic management.
Existing barcode scanner generally adopts mechanical switch to start scan process, when reading bar code information, need press the switch key switch of barcode scanner, decoding deck can be launched laser and read code control signal, simultaneously barcode signal is sent to decoding deck and decodes.When using this kind barcode scanner, read bar code information all needs to start scanner switch at every turn, operation inconvenience; And, under the situation that bar code fails in time to remove, the situation of sign indicating number also usually appears repeating continuously to read, influence the reception and the processing of data, and needs are deleted the bar code information after repeating to read again from main frame, and time and effort consuming has influenced work efficiency and reliability.In order to address the above problem, provide a kind of easy to operate, the automatic induction barcode scanner that can prevent to repeat to read sign indicating number is very necessary with the shortcoming that overcomes prior art.
Summary of the invention
Based on the deficiencies in the prior art, it is a kind of easy to operate that fundamental purpose of the present utility model is to provide, and can prevent to repeat to read the automatic induction barcode scanner of sign indicating number.
In order to achieve the above object, the utility model provides a kind of automatic induction barcode scanner, be combined into one by scanner head, main body and connection cable, described scanner head is built-in with the engine plate, main body is built-in with a decoding deck, described engine plate is provided with: a laser is read decoding circuit, is used to launch laser and reads sign indicating number; One infrared induction circuit is used to launch infrared-ray; Described infrared induction circuit and laser are read between the decoding circuit interrelated, infrared induction circuit control laser is read the Laser emission of decoding circuit, infrared induction circuit and laser are read decoding circuit and are associated with decoding deck respectively, by decoding deck laser are read the barcode signal that decoding circuit sends and decode.
In a preferred embodiment of the present utility model, described infrared induction circuit comprises CPU, infrared emission unit, infrared receiver, signal amplification unit and level comparing unit, be equiped with infrared transmitting tube on the described infrared emission unit, be equiped with infrared receiving tube on the described infrared receiver, described laser is read decoding circuit and is equiped with LASER Discharge Tube.Wherein, described signal amplification unit and level comparing unit are arranged between infrared receiver and the CPU, infrared-ray via signal amplification unit and level comparing unit, transfers to CPU with infrared level signal again and judges in regular turn after being received by infrared receiver.Described decoding deck and CPU are interrelated, be controlled by CPU and simultaneously feedback laser control signal to CPU and laser is read decoding circuit, control infrared-ray and emission simultaneously of laser are avoided reading yard being disturbed.
In another embodiment of the present utility model, described infrared induction circuit also can only comprise CPU and with CPU be mutually related infrared emission unit and infrared receiver.
In another embodiment of the present utility model, in the described infrared induction circuit, also further comprise between infrared receiver and the CPU being provided with the level comparing unit.Described level comparing unit is set at least 1 other level reference value of level.Described scanner is provided with a keyswitch that electrically connects with decoding deck.
Compared with prior art, a kind of automatic induction barcode scanner of the utility model adopts infrared observation and control technology, and accurately sign indicating number is read in the distance of judgment object and control, atony or do not read a yard phenomenon; And can under the solar radiation of certain intensity, work.And itself and conventional manual decoding deck can be realized well compatible, can make the conventional manual scanner can upgrade to automatic sensitive scanning device rapidly as long as add the infrared induction circuit.
For making the utility model easier to understand, further set forth the specific embodiment of a kind of automatic induction barcode scanner of the utility model below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 responds to the infrared induction theory diagram of barcode scanner automatically for the utility model;
Fig. 2 responds to the workflow diagram of barcode scanner automatically for the utility model.
Embodiment
A kind of automatic induction barcode scanner of the utility model is to adopt reflective infrared detection technology to carry out object (bar code) identification, launch the infrared-ray of a certain wavelength by infrared transmitting tube, the infrared-ray that object (bar code) reflects passes through processing and amplifying and judgement, and by CPU decoding deck is controlled decode operation and signal feedback.Below in conjunction with accompanying drawing, the utility model is further described.
A kind of automatic induction barcode scanner of the utility model comprises scanner head, main body and connection cable, and wherein, scanner head is used to launch infrared-ray and laser, reads bar code information.Fig. 1 illustrates the internal circuit theory diagram of a kind of automatic induction barcode scanner of the utility model.Described scanner head is built-in with engine plate 100, be furnished be mutually related infrared induction circuit 10 and laser on the described engine plate 100 and read decoding circuit 20, be built-in with decoding deck 30 in the main body, described decoding deck 30 on the one hand with engine plate 100 on infrared induction circuit 10 and laser read decoding circuit 20 and be associated, on the other hand, be connected with main frame by connection cable, transfer to main frame and handle thereby scanner head is read the effective bar code information that obtains.
With reference to shown in Figure 1, infrared induction circuit 10 is used for controlling automatically laser and reads decoding circuit 20 emission laser, and it comprises CPU101, infrared emission unit 102, infrared receiver 103, signal amplification unit 104 and level comparing unit 105.Wherein, described CPU101 is used to control the infrared transmitting tube of infrared emission unit 102 on the one hand and outwards launches infrared-ray, on the other hand the laser controlling line is detected, because the far and near detected signal intensity difference of barcode position, and then it is far and near to identify the distance of bar code by CPU101.Described infrared emission unit 102 is controlled by CPU101, is built-in with infrared transmitting tube, can outwards launch infrared ray by scanner head.When the place ahead chance object blocked, infrared-ray was that the infrared receiving tube of reflected back infrared receiver 103 carries out the signal reception.Because ultrared wavelength is long, weak strength, signal is difficult to directly detect processing by CPU101 a little less than too, generally needs processing and amplifying.104 pairs of infrared signals that receive via infrared receiver 103 of signal amplification unit are carried out the level processing and amplifying.105 pairs of infrared level after processing and amplifying of level comparing unit compare, level comparing unit 105 preestablishes level ratio to reference value, when scanner head close enough bar code, infrared level signal strength is more than or equal to level ratio during to reference value, and infrared level signal transfers to CPU101 and receives and handle; When scanner head away from bar code, infrared signal weakens, during to reference value, infrared level signal does not transfer to CPU101 to infrared level signal strength less than level ratio.Laser is read decoding circuit 20 and is provided with LASER Discharge Tube, and LASER Discharge Tube can be launched laser, and bar code information and synchronizing signal are sent to decoding deck 30 decode.30 pairs of barcode signals of decoding deck are decoded, and read decoding circuit 20 transmission laser control signals to CPU101 and laser simultaneously, drag down the level of button control line.
With reference to shown in Figure 1, the present invention responds to barcode scanner automatically and adopts reflective infrared detection technology to carry out object identification, its principle of work is described below: at first, CPU101 handles the infrared transmitting tube of infrared emission unit 102 and outwards launches infrared-ray, when the scanner head of scanner during near bar code, infrared-ray feeds back to infrared receiver 103 with the bar code information that receives, and amplifies the level of infrared signal via signal amplification unit 104 again; Then, carry out level ratio by level comparing unit 105, if when being equal to or greater than the level reference value, infrared level signal enters CPU101 and judges; Then,, drag down the level of button control line, infrared level signal is sent to decoding deck 30 by the control function of CPU101 replacement scanner keyswitch; Then, decoding deck 30 sends that laser control signal transfers to CPU101 and laser is read decoding circuit 20, and controlling CPU101 stops to send infrared-ray on the one hand, controls laser on the other hand and reads the LASER Discharge Tube of decoding circuit 20 and outwards launch laser; At last, behind the laser scanning bar code, read by laser that decoding circuit 20 sends barcode signal and synchronizing signal to decoding deck 30 is decoded again, decode successfully, decoding deck 30 discharges the laser controlling lines, and control laser is read decoding circuit 20 and stopped to launch laser.
With reference to shown in Figure 2, the workflow that the present invention responds to barcode scanner automatically is as follows: at first, scanner is connected main frame and power supply, the infrared initiate mode of system default, the infrared transmitting tube emission infrared-ray of CPU101 control infrared emission unit 102, when scanner head reaches in the certain limit near bar code, when infrared level signal strength is equal to or greater than the level reference value of level comparing unit 104, CPU101 drags down the button control line, and the LASER Discharge Tube emission laser that indication laser is read decoding circuit 20 begins to read sign indicating number; Perhaps, start keyswitch, handle by keyswitch and drag down the button control line, more infrared level signal is sent to decoding deck 30 and reads sign indicating number; At last, read decoding circuit 20 by laser and receive and send barcode signal and synchronizing signal to decoding deck 30 is decoded, by connection cable decoded bar code information is transferred to main frame again and receive.Decode successfully when reading sign indicating number, CPU101 control laser is read decoding circuit 20 and is suspended emission laser, and simultaneously, infrared emission unit 101 restarts to launch infrared-ray, repeats next round and reads sign indicating number.
Can be by setting scanner keyswitch compressing time gated sweep device mode switch at random.In an embodiment of the present utility model, when not needing to read yard, pushed the scanner switch keyswitch at least 8 seconds, infrared emission unit 102 is forbidden launching infrared, make scanner mode switch to closed condition, at this moment, instant bar code also can't be read code operations near scanner head.When needs are read yard again, pushed the scanner switch keyswitch once more at least 8 seconds, it is infrared that infrared emission unit 102 is enabled emission, makes scanner mode switch to and read a yard state.
In the utility model, adopt reflective infrared detection technology to carry out object identification,, judge the far and near scope of bar code distance scanner head by detecting the power of infrared signal, and sign indicating number is read in the emission of excitation laser, obtain bar code information, and, the transmission signal back CPU of laser, thereby can control infrared-ray and not emission simultaneously of laser by CPU, make laser when reading yard state, be not subjected to the interference of infrared-ray, improve the accuracy of identification.
In the utility model, the reduction of infrared level signal can be controlled automatically by CPU, or by manual keyswitch realization, when bar code range sweep head level signal far away or infrared too a little less than, automatically read sign indicating number at need, can select manual mode for use, pass through press of key switch, drag down the level of button control line, excitation laser is read decoding circuit emission laser and is read code operations.
In preferred embodiment of the present utility model,, also added the Si Mite determination methods for preventing to repeat to read sign indicating number.Promptly the infrared intensity of Jie Shouing is divided into ten grades, when intensity thinks that just object is close during more than or equal to 5 grades continuous three times, when intensity is continuous just think when being less than or equal to 2 grades three times object away from, middle 3 grades and 4 grades of intensity are not differentiated, reading continuously repeatedly promptly is the disposal route that disappears and shake.Secondly, automatic induction barcode scanner of the present utility model has also adopted surplus smooth redundancy approach, in infrared-ray emission outlet dustproof eyeglass is housed, because a small amount of printing opacity that exists between eyeglass reflection or infrared transmitting tube and the infrared receiving tube, can cause infrared receiving intensity can not be zero situation all the time once in a while, if judging receiving intensity is zero to think that just object is away from causing system in case of system halt, so adopt three grades of determination methods of thinking below the intensity that no object (bar code) blocks.In addition, for guaranteeing object detection speed, the time interval of infrared emission is suitable.If infrared transmission frequency is too high, can cause the influence of laser being read sign indicating number as infrared-ray of every 5ms emission, go out laser again even suspend the emission of infrared-ray, laser is read decoding circuit 20 and is also wanted the time of 150ms could recover the normal read sign indicating number.Proof is set infrared-ray of every 30ms emission after tested, each emission duration 100us, and the shake that disappears is total to 90ms for 3 times and sends laser, to reading not influence of code operations.
Above disclosed only is the preferred embodiment of a kind of automatic induction barcode scanner of the utility model, certainly can not limit the interest field of the utility model with this, therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (9)
1. respond to barcode scanner automatically for one kind, be combined into one by scanner head, main body and connection cable, described scanner head is built-in with the engine plate, and main body is built-in with a decoding deck, it is characterized in that: described engine plate is provided with:
One laser is read decoding circuit, is used to launch laser and reads sign indicating number;
One infrared induction circuit is used to launch infrared-ray;
Described infrared induction circuit and laser are read between the decoding circuit interrelated, infrared induction circuit control laser is read the Laser emission of decoding circuit, infrared induction circuit and laser are read decoding circuit and are associated with decoding deck respectively, by decoding deck laser are read the barcode signal that decoding circuit sends and decode.
2. automatic induction barcode scanner as claimed in claim 1 is characterized in that: described infrared induction circuit comprise CPU and with CPU be mutually related infrared emission unit and infrared receiver.
3. automatic induction barcode scanner as claimed in claim 2, it is characterized in that: described decoding deck and CPU are interrelated.
4. automatic induction barcode scanner as claimed in claim 2 is characterized in that: further be provided with the level comparing unit between described infrared receiver and the CPU.
5. automatic induction barcode scanner as claimed in claim 2 is characterized in that: further be provided with signal amplification unit between described infrared receiver and the CPU.
6. automatic induction barcode scanner as claimed in claim 4 is characterized in that: further be provided with signal amplification unit between described level comparing unit and the infrared receiver.
7. automatic induction barcode scanner as claimed in claim 4 is characterized in that: described level comparing unit is set at least 1 other level reference value of level.
8. automatic induction barcode scanner as claimed in claim 2 is characterized in that: described scanner is provided with a keyswitch that electrically connects with decoding deck.
9. automatic induction barcode scanner as claimed in claim 2 is characterized in that: be equiped with infrared transmitting tube on the described infrared emission unit, be equiped with infrared receiving tube on the described infrared receiver, described laser is read decoding circuit and is equiped with LASER Discharge Tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056761 CN2786709Y (en) | 2005-04-08 | 2005-04-08 | Auto-induction bar code scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056761 CN2786709Y (en) | 2005-04-08 | 2005-04-08 | Auto-induction bar code scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786709Y true CN2786709Y (en) | 2006-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056761 Expired - Lifetime CN2786709Y (en) | 2005-04-08 | 2005-04-08 | Auto-induction bar code scanner |
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| Country | Link |
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| CN (1) | CN2786709Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882200A (en) * | 2010-05-25 | 2010-11-10 | 福建新大陆电脑股份有限公司 | System on chip for integrating bar code decoding chip and optical image sensor array |
| CN110496013A (en) * | 2019-08-30 | 2019-11-26 | 深圳市小牛共享科技有限公司 | Control device for massage chair and control method |
-
2005
- 2005-04-08 CN CN 200520056761 patent/CN2786709Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882200A (en) * | 2010-05-25 | 2010-11-10 | 福建新大陆电脑股份有限公司 | System on chip for integrating bar code decoding chip and optical image sensor array |
| CN101882200B (en) * | 2010-05-25 | 2012-07-18 | 福建新大陆电脑股份有限公司 | System on chip for integrating bar code decoding chip and optical image sensor array |
| CN110496013A (en) * | 2019-08-30 | 2019-11-26 | 深圳市小牛共享科技有限公司 | Control device for massage chair and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU XULONG BARCODE EQUIPMENT CO., LTD. Free format text: FORMER OWNER: XU ZHAORONG Effective date: 20110609 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510660 6F, BUILDING A, YUEAN INDUSTRIAL PARK, HUANGCUN VILLAGE, DONGPU, TIANHE DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 510660 402, BUILDING E2, KEHUIJINGU, NO. 99, KEXUE AVENUE, SCIENCE CITY, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110609 Address after: 510660 Guangdong province Guangzhou Science City Road No. 99 Science Department of Jingu E2 building 402 Patentee after: Guangzhou Xulong Barcode Equipment Co., Ltd. Address before: 510660 Guangdong city of Guangzhou province Tianhe District Dongpu Huangcun Yuean Industrial Park building A 6F Patentee before: Xu Chaorong |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUNLUX IOT (GUANGDONG) TECHNOLOGY INC. Free format text: FORMER NAME: GUANGZHOU XULONG BARCODE EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 510663 Room 301, building B, four street, Yushu Industrial Zone, Guangzhou economic and Technological Development Zone, Guangdong, China Patentee after: SUNLUX IOT TECHNOLOGY (GUANGDONG) INC. Address before: 510660 Guangdong province Guangzhou Science City Road No. 99 Science Department of Jingu E2 building 402 Patentee before: Guangzhou Xulong Barcode Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150408 Granted publication date: 20060607 |