CN2718677Y - Photoelectric identifying device for idetifying front side and back side of mahjong pieces - Google Patents
Photoelectric identifying device for idetifying front side and back side of mahjong pieces Download PDFInfo
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- CN2718677Y CN2718677Y CN 200420060239 CN200420060239U CN2718677Y CN 2718677 Y CN2718677 Y CN 2718677Y CN 200420060239 CN200420060239 CN 200420060239 CN 200420060239 U CN200420060239 U CN 200420060239U CN 2718677 Y CN2718677 Y CN 2718677Y
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- 239000000523 sample Substances 0.000 claims abstract description 47
- 239000011521 glass Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000005693 optoelectronics Effects 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 2
- 210000003141 lower extremity Anatomy 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model discloses a photoelectric identifying device for identifying the front and the back sides of mahjong pieces. A photoelectric identifying device which can solve the dust-proof problem and can proceed the identifying of the front and the back sides to the ordinary mahjong pieces is provided, and the photoelectric identifying device has stable performance; the photoelectric identifying device does not use a magnetic iron, so the cost can be reduced, and the resource can be economized. The photoelectric identifying device for identifying the front and the back sides of the mahjong pieces is composed of a card-delivering channel, a photoelectric probe which is fixedly arranged at the external part of the card-delivering channel and a logic processing circuit which is electrically connected with the photoelectric probe; the optical pass of the photoelectric element on the photoelectric probe is toward the inner part of the card-delivering channel through an opening on the side wall of the card-delivering channel; the photoelectric identifying device for identifying the front and the back sides of the mahjong pieces also comprises a dust-proofing mechanism composed of dust-proofing glass which is inserted in front of the opening and is flushed with the flat surface in the side wall of the card-delivering channel and a compressing device on the side wall corresponding to the dust-proofing glass. The photoelectric probe is provided with two pairs or three pairs of reflection type photoelectric sensors between the two photoelectric switches which are axially arranged along the card-delivering channel; the two pairs or three pairs of reflection type photoelectric sensors are respectively arranged on the upper edge of the mahjong pieces in the card-delivering channel, or at the blank point of the lower edge, at the center point, and at the carved point of the mahjong pieces with 'the four tiao'.
Description
Technical field the utility model relates to a kind of sensor, especially a kind of photoelectric recognition device that is used to discern the mah-jong pieces pros and cons.
The full-automatic mahjong table that sell in the present market of background technology is to utilize the principle that the permanent magnet homopolarity repels mutually, heteropole attracts mutually to come the mah-jong pieces pros and cons is discerned, owing to used more permanent magnet, so the production cost of special mah-jong pieces and full-automatic mahjong table is higher, and as need the special mah-jong pieces of renewal will drop into more fund again.Permanent magnet is a kind of comparatively precious materials simultaneously.So developing direction that the commercially available common mah-jong pieces of use should be full-automatic mahjong tables in full-automatic mahjong table.
The texturing of mah-jong pieces are because of the color of its darker rag and rag, make the facial position of texturing position and light bigger difference be arranged to the reflection power and the reflection angle of light, if can test and compare the reflectance of the facial position of texturing position and light, just can distinguish the mah-jong pieces pros and cons.Method and the element that can finish above work in the modern electronic technology are a lot, as utilize photovalves such as Fibre Optical Sensor, laser probe, photoelectronic imaging device, light activated element to form probe by different combination settings and duty setting, be equipped with corresponding circuit again, just can finish identification the mah-jong pieces pros and cons.But the scheme that the photovalve of also not using common, inexpensive is now discerned common mah-jong pieces pros and cons discloses.
Though in the modern electronic technology, the test that utilizes photovalve that the reflectance variation is carried out on the surface of required test is the most frequently used means of testing, the article of introducing its ultimate principle is also a lot, uses also very extensive.But the problem of photovalve maximum is that dust is to its Effect on Performance, the accumulation of dust can cause its unstable properties, though when photovalve is operated on off state, dust is also not fairly obvious to its Effect on Performance, but when photovalve is operated in linear condition, a spot of dust just will make it can't operate as normal.If in full-automatic mahjong table, use photovalve to come mah-jong pieces are carried out pros and cons identification, just must solve its problem earlier in the medium-term and long-term operate as normal of high dirt environment of full-automatic mahjong table.
Summary of the invention fundamental purpose of the present utility model is to solve the problem that can not use because of photoelectric probe anti-dust performance difference in full-automatic mahjong table, another purpose of the present utility model is to provide a kind of dust that is not subjected to influence the cheap photoelectric recognition device that can carry out positive and negative identification to common mah-jong pieces, and it has, and volume is little, simple in structure, the advantage of stable performance.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: by mahjong pieces transporting path, in the photoelectric recognition device that photoelectric probe and the logic processing circuit that is electrically connected with described photoelectric probe are formed: described photoelectric probe is fixedly mounted on described mahjong pieces transporting path outside, the light-path that is arranged on the photovalve on the described photoelectric probe is all in mahjong pieces transporting path, the light-path of the photovalve of described photoelectric probe is provided with opening on the described mahjong pieces transporting path sidewall, also be provided with dust-proof mechanism on the inwall of described mahjong pieces transporting path, described dust-proof mechanism is made up of at the hold down gag of inlaying concordant dustproof glass on the described light-path opening and with the mahjong pieces transporting path inwall and be arranged on the sidewall relative with described dustproof glass topped.Because blocking of dustproof glass, photoelectric probe can keep totally for a long time, and when mah-jong pieces pass through in mahjong pieces transporting path, owing to dustproof glass is close in the effect of hold down gag, also just the dust on the dustproof glass has been wiped.So just realized photoelectric probe dustproof purpose.
This dust-proof mechanism can apply to the photoelectric probe that various different photovalves are formed, and proposes the photoelectric probe structure that a kind of normal optical electric device is formed below.
When described photoelectric probe is installed on the mahjong pieces transporting path, described photoelectric probe upper edge mahjong pieces transporting path axially is provided with two optoelectronic switches, be provided with two pairs of reflective photoelectric sensors between described two optoelectronic switches, the first couple of described two pairs of reflective photoelectric sensors is set in place the coboundary or the lower limb blank space of the mah-jong pieces in mahjong pieces transporting path, second pair of center that is set in place the mah-jong pieces in mahjong pieces transporting path.When employed mah-jong pieces are big, if first and second pairs of reflective photoelectric sensors only are set, the reflective photoelectric sensor that is arranged on the middle part can not topped all kinds of texturing, so also should the 3rd pair of reflective photoelectric sensor be set at the carved design position place that is arranged in the mah-jong pieces of mahjong pieces transporting path " four " between described two optoelectronic switches.
Described optoelectronic switch can be initiatively optoelectronic switch or a transmission divergence type active optoelectronic switch of reflection-type.
Described reflective photoelectric sensor is a public technology.
Described logic processing circuit can be digital integrated circuit or single chip circuit.When described logic processing circuit is made up of digital integrated circuit, the electric signal end of two optoelectronic switches of described photoelectric probe joins with one three two signal input parts importing AND circuit respectively, the electric signal end of described second pair of reflective photoelectric sensor and the inverting input of a voltage comparator join, the electric signal end of the 3rd pair of reflective photoelectric sensor and the inverting input of another voltage comparator join, the electric signal end of first pair of reflective photoelectric sensor and the in-phase input end of described two voltage comparators join, the signal output part of described two voltage comparators joins with one two two signal input parts importing OR circuit respectively, the 3rd signal input part of the signal output part of described two input OR circuit and described three input AND circuit joins, by the signal output part output identification signal voltage of described three input AND circuit.
When mah-jong pieces pass through the photoelectric probe position, described two optoelectronic switches are with the output HIGH voltage signal, when described three pairs of reflective photoelectric sensors scan the mah-jong pieces back side simultaneously, the output signal voltage of first pair of reflective photoelectric sensor is lower than second and third output signal voltage to reflection sensor, when described three pairs of reflective photoelectric sensors scanned mah-jong pieces texturing face, the output signal voltage of first pair of reflective photoelectric sensor was higher than the output signal voltage of second or the 3rd pair of reflection sensor.
When adopting two pairs of described reflective photoelectric sensor schemes, in the circuit only with a voltage comparator, need not two the input OR circuit, the output terminal of described voltage comparator directly joins with three the 3rd signal input parts importing AND circuit, by the signal output parts output identification signal voltage of described three input AND circuit.This is that those skilled in the art can finish.
Compared with prior art, the beneficial effects of the utility model are to have solved the photoelectric probe that is applied in the full-automatic mahjong table problem because of its anti-dust performance difference job insecurity, and a kind of photoelectric probe of forming with the normal optical electric device proposed, apply it in the full-automatic mahjong table, can avoid using a large amount of magnet, help reducing cost, economizing on resources.
Description of drawings Fig. 1 is mahjong pieces transporting path and the dust-proof mechanism synoptic diagram of the utility model embodiment.
Fig. 2 is photoelectric probe and the mahjong pieces transporting path scheme of installation of the utility model embodiment.
Fig. 3 is the photoelectric probe structural representation of the utility model embodiment.
Fig. 4 is the logic processing circuit schematic diagram of the utility model embodiment.
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing and embodiment:
The mah-jong pieces that mixed board apparatus output is arranged in unified attitude in full-automatic mahjong table are transported to next mechanism along mahjong pieces transporting path 1, in this example photoelectric probe 4 are arranged on the mahjong pieces transporting path 1, as shown in Figure 2.Mahjong pieces transporting path is defeated material road commonly used in the automated machine processing, and its method for designing is a known technology.
Scan for ease of 4 pairs of mah-jong pieces texturing of photoelectric probe, should make the upper and lower end or the sidewall of the maximum side of mah-jong pieces towards mahjong pieces transporting path 1, the mah-jong pieces that pass through in mahjong pieces transporting path 1 in this example are edge-on, promptly be that its longest edge limit is gone to the bottom parallel with mahjong pieces transporting path 1, its maximum side is relative with mahjong pieces transporting path 1 sidewall, when photoelectric probe 4 is installed on the mahjong pieces transporting path 1, photovalve on the photoelectric probe 4 is positioned at outside the relative sidewall in the maximum side of mah-jong pieces, and light-path is all towards the maximum side of the mah-jong pieces by mahjong pieces transporting path 1.
On the light-path of photovalve, have breach 5 as shown in Figure 1 on the sidewall of mahjong pieces transporting path 1, stud with dustproof glass 2 in the inboard of this sidewall, its plane is concordant with the sidewall inner plane in defeated material road 1, and dustproof glass 2 separates the front of light-path 5 and photovalve and the external world and is beneficial to prevent dust.The sidewall that sidewall is relative is provided with conventional hold down gag such as contact roller, clamping leaf spring, holddown spring steel wire etc. therewith, and this routine hold down gag is a spring leaf 3.Spring leaf 3 and dustproof glass 2 have been formed dust-proof mechanism in this example.When each mah-jong pieces passes through herein, all under the effect of spring leaf 3, be close to, thereby the dust on the dustproof glass 2 is taken away, so just can keep dustproof glass 2 clean, transparent for a long time, reach the purpose that improves photoelectric probe 4 anti-dust performances with dustproof glass 2.
Described photoelectric probe 4 can be fixedly mounted on the mahjong pieces transporting path 1 by using screw, clamp, conventional method such as gluing, also can make an integral body with the sidewall of mahjong pieces transporting path 1.Photoelectric probe 4 employings in this example are stuck on the mahjong pieces transporting path 1, also gluing method is fixed.Because of photoelectric probe 4 is close on the mahjong pieces transporting path 1,, be beneficial to prevent dust, as shown in Figure 2 so in fact the photovalve on the photoelectric probe 4 is in air-tight state.
Then its light source and optical detection device all can be arranged on dustproof glass 2 back when adopting reflection-type active optoelectronic switch, at this moment its anti-dust performance is best; If adopt the transmission divergence type initiatively optoelectronic switch can only with light source or optical detection device the two one of be arranged on dustproof glass 2 back, at this moment its anti-dust performance is not as the former, but because optoelectronic switch is operated on off state, so also operate as normal for a long time.
Adopt initiatively optoelectronic switch of transmission divergence type in this example, on photoelectric probe 4 as shown in Figure 3, infrarede emitting diode HD1 and infrared photodiode D1 form an optoelectronic switch, infrarede emitting diode HD2 and infrared photodiode D2 form another optoelectronic switch, when photoelectric probe 4 is installed on the mahjong pieces transporting path 1 as shown in Figure 2, infrarede emitting diode and infrared photodiode lay respectively at the both sides of mahjong pieces transporting path 1, when mah-jong pieces in mahjong pieces transporting path 1 by the time just its light path can be cut off, make the optoelectronic switch output switching signal.Two optoelectronic switches are at a distance of 17mm in this example, and height is apart from the 26.5mm that goes to the bottom of mahjong pieces transporting path 1.
Described reflective photoelectric sensor is a public technology, and in this example, its optical detection device is operated in characteristic linear zone; Its light source and optical detection device be arranged in parallel, and are spaced from each other.
The photovalve that is adopted is less in this example, and light source is the white light emitting diode of 3 millimeters of diameters, and optical detection device is the photodiode of 3 millimeters of diameters, 4.5 millimeters of the two centre distances; But the mah-jong pieces that adopt are 22mm * 30mm * 38mm more greatly, so be provided with three pairs of reflective photoelectric sensors.The layout of photovalve is gone to the bottom the setting of 26.5mm place by white light emitting diode GD1 and the horizontal first pair of reflective photoelectric sensor forming of photodiode VD1 at distance mahjong pieces transporting path 1 on photoelectric probe 4 shown in accompanying drawing 2,3; Second and third is provided with the reflective photoelectric sensor homeotropic alignment, and a shared white light emitting diode GD2 (GD3) is as light source, this principle and effect when using independent light source is the same, the photodiode VD2 centre distance mahjong pieces transporting path 1 of the second pair of photoelectric sensor 17mm that goes to the bottom, the photodiode VD3 centre distance mahjong pieces transporting path 1 of the 3rd pair of photoelectric sensor 8mm that goes to the bottom, their shared light source white light emitting diode GD2 (GD3) are arranged on the mid point between them.When mah-jong pieces in mahjong pieces transporting path 1 by the time reflective photoelectric sensor is produced and the corresponding electric signal of mah-jong pieces flat state that is scanned.
Described logic processing circuit can be digital integrated circuit or single chip circuit.In this example, logic processing circuit adopts digital integrated circuit.
Logic processing circuit schematic diagram in this example is as shown in Figure 4: the electric signal end of two optoelectronic switches being made up of infrarede emitting diode HD1, HD2 and infrared photodiode D1, D2 joins with two input ends of three inputs with door B2 respectively.The electric signal end of first pair of reflective photoelectric sensor being made up of white light emitting diode GD1 and photodiode VD1 and the in-phase input end of two voltage comparator A1, A2 join, the electric signal end of second pair of reflective photoelectric sensor being made up of white light emitting diode GD2 and photodiode VD2 and the inverting input of voltage comparator A1 join, and the electric signal end of the 3rd pair of reflective photoelectric sensor of being made up of white light emitting diode GD3 (in actual fabrication just GD2) and photodiode VD3 and the inverting input of voltage comparator A2 join.The signal output part of voltage comparator A1, A2 joins with two two input ends importing OR circuit B1 respectively, the 3rd input end of the signal output part of two input OR circuit B1 and three input AND circuit B2 joins, and the signal output part of three input AND circuit B2 is exported detected voltage signal U.
Described optoelectronic switch no mah-jong pieces by the time output low level signal, have mah-jong pieces by the time cut off the output high level signal because of light path.
Described reflective photoelectric sensor is operated in linear zone, and the signal level of the strong more then output of reflected light is high more.
In this example: supply voltage V+ is 12 volts, when mah-jong pieces do not have literal when entering photoelectric probe 4 scanning areas, be set to 3 volts by the output signal voltage of adjusting adjustable resistance W1, W2, first pair of reflective photoelectric sensor of W3, second and third output signal voltage to reflection sensor is set to 4.5 volts, like this at the signal output part of two voltage comparator A1, A2 all with the output LOW voltage signal, make the signal output part output LOW voltage signal of two input OR circuit B1, the signal output part of three input AND circuit B2 is also with the output LOW voltage signal.
At this moment when the texturing face of mah-jong pieces enters the scanning probe district, first pair of reflective photoelectric sensor will be exported one and be not less than 3-5 volt high voltage signal because of scanning the white plane at mah-jong pieces edge; Second or the 3rd pair of reflective photoelectric sensor is no more than the 1-2.5 volt because of the signal voltage that scans texturing and export.The signal output part of such two voltage comparator A1, A2 just has one or two simultaneously with the output HIGH voltage signal, makes the signal output part output HIGH voltage signal of two input OR circuit B1.At this moment if two optoelectronic switches cut off light path output HIGH voltage signal simultaneously simultaneously because of mah-jong pieces, then the signal output part of three input AND circuit B2 is with the output HIGH voltage signal.
Scan mah-jong pieces when not having literal and mah-jong pieces and two optoelectronic switches not being cut off simultaneously (represent unlicensed passing through) in photoelectric probe 4 like this, three input AND circuit B2 are with the output LOW voltage signal, only two optoelectronic switches also cut off simultaneously when scanning texturing, three input AND circuit B2 are the output HIGH voltage signal, thereby reaches the purpose of identification mah-jong pieces pros and cons.
Claims (6)
1. photoelectric recognition device that is used to discern the mah-jong pieces pros and cons, by mahjong pieces transporting path, photoelectric probe and the logic processing circuit that is electrically connected with described photoelectric probe are formed, it is characterized in that: described photoelectric probe is fixedly mounted on described mahjong pieces transporting path outside, the light-path that is arranged on the photovalve on the described photoelectric probe is all in mahjong pieces transporting path, the light-path of the photovalve of described photoelectric probe is provided with opening on the described mahjong pieces transporting path sidewall, also be provided with dust-proof mechanism on the inwall of described mahjong pieces transporting path, described dust-proof mechanism is made up of at the hold down gag of inlaying concordant dustproof glass on the light-path opening and with the mahjong pieces transporting path inwall and be arranged on the sidewall relative with described dustproof glass topped.
2. according to the described a kind of photoelectric recognition device that is used to discern the mah-jong pieces pros and cons of claim 1, it is characterized in that: when described photoelectric probe is installed on the mahjong pieces transporting path, described photoelectric probe upper edge mahjong pieces transporting path axially is provided with two optoelectronic switches, be provided with two pairs of reflective photoelectric sensors between described two optoelectronic switches, the first couple of described two pairs of reflective photoelectric sensors is set in place the coboundary or the lower limb blank space of the mah-jong pieces in mahjong pieces transporting path, second pair of center that is set in place the mah-jong pieces in mahjong pieces transporting path.
3. according to the described a kind of photoelectric recognition device that is used to discern the mah-jong pieces pros and cons of claim 2, it is characterized in that: also be provided with the 3rd pair of reflective photoelectric sensor between described two optoelectronic switches, be set in place the carved design position place of the mah-jong pieces " four " in described mahjong pieces transporting path.
4. according to claim 2 or 3 described a kind of photoelectric recognition devices that are used to discern the mah-jong pieces pros and cons, it is characterized in that: described optoelectronic switch can be initiatively optoelectronic switch or a transmission divergence type active optoelectronic switch of reflection-type.
5. according to the described a kind of photoelectric recognition device that is used to discern the mah-jong pieces pros and cons of claim 3, it is characterized in that: described first pair of reflective photoelectric sensor is arranged on apart from the described mahjong pieces transporting path 26.5mm place that goes to the bottom, second, three pairs of reflective photoelectric sensor homeotropic alignments are provided with, the photodiode of second pair of reflective photoelectric sensor is set at the 17mm place that goes to the bottom apart from described mahjong pieces transporting path, the photodiode of the 3rd pair of reflective photoelectric sensor is set at the 8mm place that goes to the bottom apart from described mahjong pieces transporting path, mid point between described two photodiodes is provided with their shared white light emitting diodes, described two optoelectronic switches are at a distance of 17mm, and 26.5mm goes to the bottom apart from described defeated material road.
6. according to claim 3 or 5 described a kind of photoelectric recognition devices that are used to discern the mah-jong pieces pros and cons, it is characterized in that: described logic processing circuit is made up of digital integrated circuit, the electric signal end of two optoelectronic switches of described photoelectric probe joins with one three two signal input parts importing AND circuit respectively, the electric signal end of described second pair of reflective photoelectric sensor and the inverting input of a voltage comparator join, the electric signal end of the 3rd pair of reflective photoelectric sensor and the inverting input of another voltage comparator join, the electric signal end of first pair of reflective photoelectric sensor and the in-phase input end of described two voltage comparators join, the signal output part of described two voltage comparators joins with one two two signal input parts importing OR circuit respectively, the 3rd signal input part of the signal output part of described two input OR circuit and described three input AND circuit joins, by the signal output part output identification signal voltage of described three input AND circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060239 CN2718677Y (en) | 2004-07-13 | 2004-07-13 | Photoelectric identifying device for idetifying front side and back side of mahjong pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060239 CN2718677Y (en) | 2004-07-13 | 2004-07-13 | Photoelectric identifying device for idetifying front side and back side of mahjong pieces |
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| Publication Number | Publication Date |
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| CN2718677Y true CN2718677Y (en) | 2005-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060239 Expired - Lifetime CN2718677Y (en) | 2004-07-13 | 2004-07-13 | Photoelectric identifying device for idetifying front side and back side of mahjong pieces |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017346A (en) * | 2016-05-23 | 2016-10-12 | 浙江大学台州研究院 | Front/back side and angle measuring method of ceramic lens based on machine vision |
| CN107817089A (en) * | 2017-11-09 | 2018-03-20 | 湖南三德科技股份有限公司 | A kind of bottle cap positive and negative detection means, method and capping device |
| CN107884604A (en) * | 2017-12-14 | 2018-04-06 | 池州职业技术学院 | A kind of optoelectronic switch break-make level sensitive circuit |
| CN113577754A (en) * | 2021-08-05 | 2021-11-02 | 张国祥 | Intelligent mahjong machine with voice alarm function and maintenance method thereof |
-
2004
- 2004-07-13 CN CN 200420060239 patent/CN2718677Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017346A (en) * | 2016-05-23 | 2016-10-12 | 浙江大学台州研究院 | Front/back side and angle measuring method of ceramic lens based on machine vision |
| CN106017346B (en) * | 2016-05-23 | 2018-10-12 | 浙江大学台州研究院 | Based on machine vision metrology ceramics eyeglass is positive and negative and the method for angle |
| CN107817089A (en) * | 2017-11-09 | 2018-03-20 | 湖南三德科技股份有限公司 | A kind of bottle cap positive and negative detection means, method and capping device |
| CN107817089B (en) * | 2017-11-09 | 2024-03-01 | 湖南三德科技股份有限公司 | Bottle cap positive and negative detection device and method and capping equipment |
| CN107884604A (en) * | 2017-12-14 | 2018-04-06 | 池州职业技术学院 | A kind of optoelectronic switch break-make level sensitive circuit |
| CN107884604B (en) * | 2017-12-14 | 2024-04-05 | 池州职业技术学院 | Photoelectric switch on-off level detection circuit |
| CN113577754A (en) * | 2021-08-05 | 2021-11-02 | 张国祥 | Intelligent mahjong machine with voice alarm function and maintenance method thereof |
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Owner name: ZHEJIANG MATSUOKA ELECTRICAL INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: BAI JUNTIAN Effective date: 20051125 |
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Effective date of registration: 20051125 Address after: Hangzhou City, Zhejiang province 311202, Xiaoshan economic and Technological Development Zone, Road No. 79 Patentee after: Zhejiang Songgang mechanotronics Co. Ltd. Address before: Sichuan province Chengdu City Star Road 610081 No. 8 China Southwest Architectural Design & Research Institute building two, No. 34 Patentee before: Bai Juntian |
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| ASS | Succession or assignment of patent right |
Owner name: SONGGANG ELECTRICAL( CHINA) CO., LTD. Free format text: FORMER OWNER: ZHEJIANG MATSUOKA ELECTRICAL INDUSTRIAL CO., LTD. Effective date: 20080425 |
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Effective date of registration: 20080425 Address after: Hangzhou City, Zhejiang Province, Xiaoshan economic and Technological Development Zone District Bridge High ten Road No. 122, zip code: 311215 Patentee after: Songgang Machine Electric (China) Co., Ltd. Address before: Hangzhou City, Zhejiang Province, Xiaoshan economic and Technological Development Zone, Road No. 79, zip code: 311202 Patentee before: Zhejiang Songgang mechanotronics Co. Ltd. |
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Expiration termination date: 20140713 Granted publication date: 20050817 |