CN108434714A - A kind of bowling scan-type infrared light detection device and method - Google Patents
A kind of bowling scan-type infrared light detection device and method Download PDFInfo
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- CN108434714A CN108434714A CN201810344517.0A CN201810344517A CN108434714A CN 108434714 A CN108434714 A CN 108434714A CN 201810344517 A CN201810344517 A CN 201810344517A CN 108434714 A CN108434714 A CN 108434714A
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- infrared light
- light detector
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 36
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims description 30
- 239000000523 sample Substances 0.000 claims description 6
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
- A63D1/00—Installations for bowling games, e.g. bowling-alleys or bocce courts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
- A63D5/00—Accessories for bowling-alleys or table alleys
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of bowling scan-type infrared light detection device and method, wherein bowling scan-type infrared light detection device includes multigroup infrared light detector, signal amplification and Logical processing unit, power supply unit, signal output unit；Same time, only one group of infrared light detector are in running order.Bowling scan-type infrared light detection device and method provided by the invention, when game machine starts, multigroup infrared light detector can emit infrared signal in turn in order with high-frequency speed, but one group of infrared light detector work is only had simultaneously, solve the problems, such as in this way it is multigroup between the mutual crosstalk of infrared ray, facilitate installation, while each transmitting module takes turns to operate, service life greatly increases.
Description
Technical field
The present invention relates to bowling game console technical fields, are filled more particularly to a kind of bowling scan-type infrared light detection
It sets and method, installation is more convenient, cost is lower.
Background technology
Currently, the infrared detecting device for the bowling game console simulation alley track detection that we are recognized is by multigroup red
Outer transmitting-receiving detector composition, and every group of detection of infrared laser device is by an infrared emission module and an infrared receiver module group
At.When machine startup, the continual running simultaneously of multigroup detection of infrared laser device, however this work no matter when all remain
Make that mode is adjacent when mounted to easy to produce signal cross-talk between pipe, influences installation effectiveness, meanwhile, transmitting-receiving connects the pipe range phase
Continuous work, seriously affect the emitting mould train service life needs to be replaced frequently emitting mould train during equipment is run.
Accordingly, it is desirable to provide a kind of bowling scan-type infrared light detection device and method is to solve the above technical problems.
Invention content
The invention mainly solves the technical problem of providing a kind of bowling scan-type infrared light detection device and methods, should
Infrared light detection device is that common infrared ray or infrared laser transmitting-receiving sensors work are controlled in a manner of scanning.
In order to solve the above technical problems, to be to provide a kind of bowling scan-type red for the first technical solution that the present invention uses
Outer optical detection device, including multigroup infrared light detector 1, with multigroup infrared light described in pulse scan mode in order alternate run
The signal of detector 1 amplifies and Logical processing unit 2, the power supply unit for amplifying for signal and Logical processing unit 2 is powered
3, signal output unit 4；Wherein, signal amplification and Logical processing unit 2 are electrically connected multigroup infrared light detector 1, power supply
Unit 3, signal output unit 4；Same time, only one group of infrared light detector are in running order.
It is preferred that multigroup infrared light detector 1 includes the 1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd
Group infrared light detector ... N group infrared light detectors；
1st group of infrared light detector includes the 1st transmitting module 11 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 1st receiving module 101 of the optical signal for receiving the transmitting of the 1st transmitting module 11；
2nd group of infrared light detector includes the 2nd transmitting module 12 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 2nd receiving module 102 of the optical signal for receiving the transmitting of the 2nd transmitting module 12；
3rd group of infrared light detector includes the 3rd transmitting module 13 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 3rd receiving module 103 of the optical signal for receiving the transmitting of the 3rd transmitting module 13；
...
N group infrared light detectors include the N transmitting modules 1N for being electrically connected signal amplification and Logical processing unit 2, use
In the N receiving modules 10N for the optical signal for receiving N transmitting modules 1N transmittings；
Wherein, N is no less than 2 positive integer.
It is preferred that N=5；The receiving module includes at least one receiving unit.
It is preferred that the 1st transmitting module 11, the 2nd transmitting module 12, the 3rd transmitting module 13 ... N transmitting modules 10N are arranged in
The first row；
1st receiving module 101, the 2nd receiving module 102, the 3rd receiving module 103 ... N receiving modules 10N are arranged in
Two rows.
It is preferred that the circuit of each receiving module is bandwidth-limited circuit；It is provided on the probe of the receiving module infrared
Optical filter.
It is preferred that the bowling scan-type infrared light detection device is detection of infrared laser device.
It is preferred that the bowling scan-type infrared light detection device is common infra-red ray detection device.
In order to solve the above technical problems, to be to provide a kind of bowling scan-type red for second of technical solution that the present invention uses
Outer light detection method, including step：Using signal amplification and Logical processing unit 2 with pulse scan mode alternate run in order
Multigroup infrared light detector 1 of bowling is kept for the same time only have one group of infrared light detector in operating status.
It is preferred that multigroup infrared light detector 1 includes the 1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd
Group infrared light detector, the 4th group of infrared light detector, the 5th group of infrared light detector；
1st group of infrared light detector includes the 1st transmitting module 11 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 1st receiving module 101 of the optical signal for receiving the transmitting of the 1st transmitting module 11；
2nd group of infrared light detector includes the 2nd transmitting module 12 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 2nd receiving module 102 of the optical signal for receiving the transmitting of the 2nd transmitting module 12；
3rd group of infrared light detector includes the 3rd transmitting module 13 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 3rd receiving module 103 of the optical signal for receiving the transmitting of the 3rd transmitting module 13；
4th group of infrared light detector includes the 4th transmitting module 14 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 4th receiving module 104 of the optical signal for receiving the transmitting of the 4th transmitting module 14；
5th group of infrared light detector includes the 5th transmitting module 15 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 5th receiving module 105 of the optical signal for receiving the transmitting of the 5th transmitting module 15.
It is preferred that the circuit of each receiving module is bandwidth-limited circuit；It is provided on the probe of the receiving module infrared
Optical filter.
The beneficial effects of the invention are as follows：A kind of bowling scan-type infrared light detection device provided by the invention and detection side
Method, when game machine starts, multigroup infrared light detector can emit infrared signal in turn in order with high-frequency speed, but same
When only have the work of one group of infrared light detector, solve the problems, such as in this way it is multigroup between the mutual crosstalk of infrared ray, facilitate installation,
Each transmitting module module takes turns to operate simultaneously, and service life greatly increases.
Description of the drawings
Fig. 1 is a kind of circuit theory of the first preferred embodiment of bowling scan-type infrared light detection device of the present invention
Schematic diagram；
Fig. 2 is the transmitting module time diagram included by multigroup infrared light detector 1 in Fig. 1；
Fig. 3 is the transmitting-receiving of a preferred embodiment of multigroup infrared light detector 1 in Fig. 1 to pipe arrangement schematic diagram.
The corresponding component names difference of Digital ID in Figure of description is as follows：
The multigroup infrared light detectors of 1-；The 1st transmitting modules of 11-；101-the 1 receiving module；The 2nd transmitting modules of 12-；
102-the 2 receiving module；The 3rd transmitting modules of 13-；103-the 3 receiving module；The 4th transmitting modules of 14-；104-the 4 receives
Module；The 5th transmitting modules of 15-；105-the 5 receiving module；1N- N transmitting modules；10N-N receiving modules；2- signals are put
Big and Logical processing unit；3- power supply units；4- signal output units.
Specific implementation mode
Technical scheme of the present invention is described in detail with reference to diagram.
A kind of bowling scan-type infrared light detection dress shown in Figure 1, that the first technical solution of the invention provides
Set, including multigroup infrared light detector 1, with multigroup infrared light detector 1 described in pulse scan mode in order alternate run
Signal amplify and Logical processing unit 2, for for signal amplification and Logical processing unit 2 power power supply unit 3, signal output
Unit 4；Wherein, signal amplification and Logical processing unit 2 are electrically connected multigroup infrared light detector 1, power supply unit 3, signal
Output unit 4；Same time, only one group of infrared light detector are in running order.
The bowling scan-type infrared light detection device of the present embodiment, the transmitting module in multigroup infrared light detector start
When, be the working method continuously transmitted with the pulse of certain frequency, no matter the range of pulse frequency is much, duty ratio it is more high and
How long is duration, all within protection scope of the present invention.This pulse scan mode runs transmitting module, can resist outer
The strong light interference in portion and the interference of extraneous electromagnetic signals.And the infrared ray that can be solved between multigroup infrared light detector is mutually gone here and there
The problem of disturbing facilitates installation wiring, while each transmitting module takes turns to operate, service life is significantly in specific wiring process
Increase.
Please referring further to shown in Fig. 1, in a preferred embodiment of the invention, multigroup infrared light detector 1
Including the 1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd group of infrared light detector ... N group infrared light detector；
1st group of infrared light detector includes the 1st transmitting module 11 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 1st receiving module 101 of the optical signal for receiving the transmitting of the 1st transmitting module 11；
2nd group of infrared light detector includes the 2nd transmitting module 12 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 2nd receiving module 102 of the optical signal for receiving the transmitting of the 2nd transmitting module 12；
3rd group of infrared light detector includes the 3rd transmitting module 13 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 3rd receiving module 103 of the optical signal for receiving the transmitting of the 3rd transmitting module 13；
...
N group infrared light detectors include the N transmitting modules 1N for being electrically connected signal amplification and Logical processing unit 2, use
In the N receiving modules 10N for the optical signal for receiving N transmitting modules 1N transmittings；
Wherein, N is no less than 2 positive integer, for example N can be 2,3,4,5,6 even greater positive integers, and N's is specific
Numerical value is needed to be selected according to specific design requirement, is not restricted to this.
It please refers to shown in Fig. 2, the 1st transmitting module 11, the 2nd transmitting module 12, the 3rd transmitting module 13 ... N transmitting modules
1N is that sequential pulse starts successively, and on same time point, transmitting module is in running order there are one, thus may be used
To avoid the mutual crosstalk of infrared signal between multigroup infrared light detector.Certainly, in all meetings of each moment, there are one emit mould
Block is in running order.
In an embodiment of the present invention, it is preferable that the receiving module includes at least one receiving unit, different receiving modules
The mode of included receiving unit cross arrangement is also within protection scope of the present invention.
Further preferably, the 1st transmitting module 11, the 2nd transmitting module 12, the 3rd transmitting module 13 ... N transmitting modules 10N
It is arranged in the first row；1st receiving module 101, the 2nd receiving module 102, the 3rd receiving module 103 ... N receiving modules 10N arrangements
In the second row.Certainly, in other embodiments of the invention, the 1st transmitting module 11, the 2nd transmitting module 12, the 3rd transmitting module
13 ... N transmitting modules 10N can not be arranged in same a line；1st receiving module 101, the 2nd receiving module the 102, the 3rd receive mould
Block 103 ... N receiving modules 10N can not also be arranged in same a line, as long as can realize that transmitting module and receiving module one are a pair of
The transmitting answered and reception relationship.
In one embodiment of the invention, the first row can all exist with transmitting module and receiving module, accordingly
The second row receiving module and transmitting module all exist, this is also within protection scope of the present invention.
In order to further resist the external strong interference of light and the interference of extraneous electromagnetic signals, in an embodiment of the present invention,
It is preferred that the circuit of each receiving module is bandwidth-limited circuit；It is provided with infrared fileter on the probe of the receiving module.Band
Bandpass filter circuit is to resist the interference of extraneous electromagnetic signals, and infrared fileter only allows the light in infrared band to pass through,
Avoiding problems the interference of external strong light.
In a preferred embodiment of the invention, the bowling scan-type infrared light detection device is examined for infrared laser
Survey device.
In another preferred embodiment of the invention, the bowling scan-type infrared light detection device is common infrared
Line detector.
The bowling scan-type infrared light detection device of the present invention is detection of infrared laser device, common for needing to select
Infra-red ray detection device, or selection detection of infrared laser device, will make a choice according to specific need of work.Specifically
's：Common infrared emitting mode, infrared light emission signal angle are big, do not need transmitting tube and the complete face of reception pipe, such as Fig. 3
Shown, transmitting and the central shaft of reception pipe are not require face, can be worked normally completely, and precision when installation is not required to too
It is high；Infrared laser is that light focusing is relatively good to the characteristics of mode of penetrating, laser, needs when installation to receive and dispatch and is aligned to pipe, and advantage is
Precision is high, and anti-interference ability is good, it is necessary to preferentially select under this mode, the central axis face of transmitting tube and reception pipe.User
Can be according to above-mentioned common infrared emitting mode and infrared laser to the respective advantage and disadvantage for the mode of penetrating, selection uses common infrared
Line radiation pattern, infrared laser are to one in the mode of penetrating.
A kind of bowling scan-type infrared light detection method that second of technical solution of the invention provides, this process employs
Above-mentioned bowling scan-type infrared light detection device, wherein the method comprising the steps of：Utilize signal amplification and Logical processing unit
2 with multigroup infrared light detector 1 of pulse scan mode alternate run bowling in order, keep the same time only have one group it is red
Outer photodetector is in operating status.
In the bowling scan-type infrared light detection method of the present invention, preferably multigroup infrared light detector 1 includes
1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd group of infrared light detector, the 4th group of infrared light detector, the 5th group
Infrared light detector；
1st group of infrared light detector includes the 1st transmitting module 11 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 1st receiving module 101 of the optical signal for receiving the transmitting of the 1st transmitting module 11；
2nd group of infrared light detector includes the 2nd transmitting module 12 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 2nd receiving module 102 of the optical signal for receiving the transmitting of the 2nd transmitting module 12；
3rd group of infrared light detector includes the 3rd transmitting module 13 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 3rd receiving module 103 of the optical signal for receiving the transmitting of the 3rd transmitting module 13；
4th group of infrared light detector includes the 4th transmitting module 14 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 4th receiving module 104 of the optical signal for receiving the transmitting of the 4th transmitting module 14；
5th group of infrared light detector includes the 5th transmitting module 15 for being electrically connected signal amplification and Logical processing unit 2, uses
In the 5th receiving module 105 of the optical signal for receiving the transmitting of the 5th transmitting module 15.
In the embodiment of the bowling scan-type infrared light detection method of the present invention, in order to avoid extraneous strong light interference and electricity
The interference of magnetic signal, it is preferable that the circuit of each receiving module is bandwidth-limited circuit；It is provided on the probe of the receiving module
Infrared fileter.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant technical fields, similarly
It is included within the scope of the present invention.
Claims (10)
1. a kind of bowling scan-type infrared light detection device, it is characterised in that：Including multigroup infrared light detector (1), with arteries and veins
Rush scan mode in order the signal amplification of multigroup infrared light detector (1) described in alternate run and Logical processing unit (2), use
In power supply unit (3), signal output unit (4) for signal amplification and Logical processing unit (2) power supply；Signal amplifies and logic
Processing unit (2) is electrically connected multigroup infrared light detector (1), power supply unit (3), signal output unit (4)；With for the moment
Between, only one group of infrared light detector is in running order.
2. bowling scan-type infrared light detection device according to claim 1, it is characterised in that：Multigroup infrared light
Detector (1) is infrared including the 1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd group of infrared light detector ... N group
Photodetector；
1st group of infrared light detector includes the 1st transmitting module (11) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 1st receiving module (101) of the optical signal for receiving the transmitting of the 1st transmitting module (11)；
2nd group of infrared light detector includes the 2nd transmitting module (12) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 2nd receiving module (102) of the optical signal for receiving the transmitting of the 2nd transmitting module (12)；
3rd group of infrared light detector includes the 3rd transmitting module (13) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 3rd receiving module (103) of the optical signal for receiving the transmitting of the 3rd transmitting module (13)；
...
N group infrared light detectors include the N transmitting modules (1N) of the amplification of electrical connection signal and Logical processing unit (2), use
In the N receiving modules (10N) for receiving the optical signal that N transmitting modules (1N) emit；
Wherein, N is no less than 2 positive integer.
3. bowling scan-type infrared light detection device according to claim 2, it is characterised in that：N=5；The reception
Module includes at least one receiving unit.
4. bowling scan-type infrared light detection device according to claim 3, it is characterised in that：1st transmitting module
(11), the 2nd transmitting module (12), N transmitting modules (10N) are arranged in the first row to the 3rd transmitting module (13) ...；
1st receiving module (101), the 2nd receiving module (102), the arrangement of the 3rd receiving module (103) ... N receiving modules (10N)
In the second row.
5. bowling scan-type infrared light detection device according to any one of claims 1-4, it is characterised in that：Each
The circuit of receiving module is bandwidth-limited circuit；It is provided with infrared fileter on the probe of the receiving module.
6. bowling scan-type infrared light detection device according to claim 5, it is characterised in that：The bowling scanning
Formula infrared light detection device is detection of infrared laser device.
7. bowling scan-type infrared light detection device according to claim 5, it is characterised in that：The bowling scanning
Formula infrared light detection device is common infra-red ray detection device.
8. a kind of bowling scan-type using a kind of bowling scan-type infrared light detection device described in claim 1 is infrared
Light detection method, it is characterised in that：Including step：It is pressed with pulse scan mode using signal amplification and Logical processing unit (2)
Sequence alternate runs multigroup infrared light detector (1) of bowling, is kept for the same time only have one group of infrared light detector to be in
Operating status.
9. bowling scan-type infrared light detection method according to claim 8, it is characterised in that：
Multigroup infrared light detector (1) includes the 1st group of infrared light detector, the 2nd group of infrared light detector, the 3rd group infrared
Photodetector, the 4th group of infrared light detector, the 5th group of infrared light detector；
1st group of infrared light detector includes the 1st transmitting module (11) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 1st receiving module (101) of the optical signal for receiving the transmitting of the 1st transmitting module (11)；
2nd group of infrared light detector includes the 2nd transmitting module (12) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 2nd receiving module (102) of the optical signal for receiving the transmitting of the 2nd transmitting module (12)；
3rd group of infrared light detector includes the 3rd transmitting module (13) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 3rd receiving module (103) of the optical signal for receiving the transmitting of the 3rd transmitting module (13)；
4th group of infrared light detector includes the 4th transmitting module (14) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 4th receiving module (104) of the optical signal for receiving the transmitting of the 4th transmitting module (14)；
5th group of infrared light detector includes the 5th transmitting module (15) of the amplification of electrical connection signal and Logical processing unit (2), uses
In the 5th receiving module (105) of the optical signal for receiving the transmitting of the 5th transmitting module (15).
10. bowling scan-type infrared light detection method according to claim 9, it is characterised in that：Each receiving module
Circuit be bandwidth-limited circuit；It is provided with infrared fileter on the probe of the receiving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344517.0A CN108434714A (en) | 2018-04-17 | 2018-04-17 | A kind of bowling scan-type infrared light detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344517.0A CN108434714A (en) | 2018-04-17 | 2018-04-17 | A kind of bowling scan-type infrared light detection device and method |
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| Publication Number | Publication Date |
|---|---|
| CN108434714A true CN108434714A (en) | 2018-08-24 |
Family
ID=63200178
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810344517.0A Pending CN108434714A (en) | 2018-04-17 | 2018-04-17 | A kind of bowling scan-type infrared light detection device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278509Y (en) * | 1996-08-13 | 1998-04-15 | 韩铁生 | Infrared pin measurer for bowling equipment |
| CN1291520A (en) * | 1999-10-06 | 2001-04-18 | 汪文斌 | Speed indication system for bowling ball |
| CN2466738Y (en) * | 2000-08-28 | 2001-12-19 | 大洋玩具工业股份有限公司 | Multigroup infrared remote controlling device |
| CN1394715A (en) * | 2002-07-24 | 2003-02-05 | 深圳市利通精密机械有限公司 | Multichannel infrared photoelectric safety detection method and its equipment |
| CN2573028Y (en) * | 2002-05-23 | 2003-09-17 | 陆瑞海 | Special ball return detector for bowling |
| CN208591522U (en) * | 2018-04-17 | 2019-03-12 | 中山北京理工大学研究院 | A kind of bowling scan-type infrared light detection device |
-
2018
- 2018-04-17 CN CN201810344517.0A patent/CN108434714A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278509Y (en) * | 1996-08-13 | 1998-04-15 | 韩铁生 | Infrared pin measurer for bowling equipment |
| CN1291520A (en) * | 1999-10-06 | 2001-04-18 | 汪文斌 | Speed indication system for bowling ball |
| CN2466738Y (en) * | 2000-08-28 | 2001-12-19 | 大洋玩具工业股份有限公司 | Multigroup infrared remote controlling device |
| CN2573028Y (en) * | 2002-05-23 | 2003-09-17 | 陆瑞海 | Special ball return detector for bowling |
| CN1394715A (en) * | 2002-07-24 | 2003-02-05 | 深圳市利通精密机械有限公司 | Multichannel infrared photoelectric safety detection method and its equipment |
| CN208591522U (en) * | 2018-04-17 | 2019-03-12 | 中山北京理工大学研究院 | A kind of bowling scan-type infrared light detection device |
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