CN113535007A - Asynchronous bilateral screen without intermediate wiring and working method thereof - Google Patents
Asynchronous bilateral screen without intermediate wiring and working method thereof Download PDFInfo
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- CN113535007A CN113535007A CN202110780875.8A CN202110780875A CN113535007A CN 113535007 A CN113535007 A CN 113535007A CN 202110780875 A CN202110780875 A CN 202110780875A CN 113535007 A CN113535007 A CN 113535007A
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- 230000002146 bilateral effect Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims description 42
- 238000011017 operating method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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Abstract
The invention discloses an asynchronous bilateral screen without intermediate wiring, which comprises a transmitting frame, a receiving frame and a controller, wherein a plurality of transmitting elements are sequentially arranged on the transmitting frame, receiving elements are arranged on the receiving frame and correspond to the positions of the transmitting elements, and an area enclosed by the transmitting elements and the receiving elements is a contact area. The asynchronous double-sided screen without intermediate wiring adopts the structure, replaces the traditional intermediate wiring by optical signal timing, is convenient to process and arrange, and is particularly suitable for occasions with difficult intermediate wiring.
Description
Technical Field
The invention relates to a touch screen technology, in particular to an asynchronous bilateral screen without intermediate wiring and a working method thereof.
Background
A dual-sided screen is an infrared touch screen with only two slats (a transmitter board and a receiver board), which are typically connected by a flex cable or circuit board to ensure synchronous operation. However, this connection may affect the movement of the object when used in certain situations (e.g., when lying on a road to detect moving objects). And the processing difficulty is higher, and the cost is higher.
Disclosure of Invention
The invention aims to provide an asynchronous double-sided screen without intermediate wiring, which replaces the traditional intermediate wiring by optical signal timing, is convenient to process and arrange and is particularly suitable for occasions with difficult intermediate wiring.
In order to achieve the above object, the present invention provides an asynchronous bilateral screen without intermediate routing, which includes a transmitting frame, a receiving frame, a controller, a plurality of transmitting elements sequentially arranged on the transmitting frame, a receiving element arranged on the receiving frame and corresponding to the transmitting element, and a contact area defined by the transmitting element and the receiving element.
Preferably, the synchronous time tick lamp group comprises a synchronous signal transmitting tube and a synchronous signal receiving tube which are arranged outside the contact area, and the synchronous signal transmitting tube and the synchronous signal receiving tube are correspondingly arranged.
Preferably, the synchronous signal transmitting tube is arranged on the receiving frame, and the synchronous signal receiving tube is arranged on the transmitting frame.
Preferably, the synchronous time-setting lamp set comprises a transmitting tube unit and a receiving tube unit, the transmitting tube unit comprises at least two transmitting elements which are lighted simultaneously and emit specific frequency, and the receiving tube unit comprises at least two receiving elements which are correspondingly arranged corresponding to the transmitting tube unit.
Preferably, the transmitting tube unit includes two transmitting elements respectively located at the head and tail ends of the transmitting frame and simultaneously lighting up to emit specific frequencies, and the receiving tube unit includes two receiving elements respectively located at the head and tail ends of the receiving frame.
A working method based on an asynchronous bilateral screen without intermediate wiring comprises the following steps:
s1, electrifying and initializing, wherein the synchronous signal receiving tube on the transmitting frame waits for receiving the time tick signal of the synchronous signal transmitting tube on the receiving frame;
s2, the synchronous signal transmitting tube is lighted up to send out a time-setting signal, a time delay is carried out for waiting for the signal to be established, then the receiving elements are sequentially started, the synchronous signal receiving tube receives the time-setting signal, the transmitting elements are sequentially started after a time delay, and the receiving elements receive the signal transmitted by the corresponding transmitting elements;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
Preferably, the interval setting correction time is equal to at least the time when one frame is scanned.
A working method based on the asynchronous bilateral screen without the intermediate routing comprises the following steps:
s1, electrifying and initializing, wherein the receiving tube unit waits for the time tick signal of the transmitting tube unit;
s2, all the emitting elements in the emitting tube unit are lighted with specific frequency, time setting signals are sent out, the emitting elements on the emitting frame are sequentially started after time delay for a period of time, the receiving elements in the receiving tube unit receive the time setting signals, the time delay for a period of time is waited for signal establishment, and then the receiving elements on the receiving frame are sequentially started;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
Preferably, the interval setting correction time is equal to at least the time when one frame is scanned.
Therefore, the asynchronous double-sided screen without intermediate wiring in the structure is adopted, the traditional intermediate wiring is replaced by optical signal timing, the processing and the arrangement are convenient, and the asynchronous double-sided screen is particularly suitable for occasions with difficult intermediate wiring.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an asynchronous bilateral screen without intermediate routing according to an embodiment of the present invention;
fig. 2 is a timing diagram of an asynchronous bilateral screen without intermediate routing according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is a schematic structural diagram of an asynchronous bilateral screen without intermediate routing according to an embodiment of the present invention; as shown in fig. 1, the structure of the present invention includes a transmitting frame, a receiving frame and a controller, in this embodiment, the transmitting frame and the receiving frame are controlled by the two controllers respectively, and the controller applied to the receiving frame only needs to provide the most basic logic control, so that a controller with very low cost can be selected to save cost, a plurality of transmitting elements are arranged on the transmitting frame in sequence, a receiving element is arranged on the receiving frame and at a position corresponding to the transmitting element, an area enclosed by the transmitting element and the receiving element is a contact area, it is required to say that the opposite transmitting frame and receiving frame are not directly connected, each independently powered, although there is no connection (i.e. there is no synchronization signal), both sides are still synchronized, otherwise, the present invention further includes a synchronization timing lamp set for correcting transmitting and receiving time by an optical signal, that is, a start signal is transmitted by an optical signal, and both sides determine an initial time by the signal, this operation is called "time synchronization", and after the time synchronization, both sides respectively scan according to a predetermined scan logic.
In a first embodiment, the synchronous time tick lamp set includes a synchronous signal transmitting tube and a synchronous signal receiving tube, which are disposed outside the contact area, and the synchronous signal transmitting tube and the synchronous signal receiving tube are disposed correspondingly. The synchronous signal transmitting tube is arranged on the receiving frame, and the synchronous signal receiving tube is arranged on the transmitting frame and is reversely arranged to reduce interference caused by normal transmitting and receiving.
A working method based on an asynchronous bilateral screen without intermediate wiring comprises the following steps:
s1, electrifying and initializing, wherein the synchronous signal receiving tube on the transmitting frame waits for receiving the time tick signal of the synchronous signal transmitting tube on the receiving frame;
s2, the synchronous signal transmitting tube is lighted up to send out a time-setting signal, a time delay is carried out for waiting for the signal to be established, then the receiving elements are sequentially started, the synchronous signal receiving tube receives the time-setting signal, the transmitting elements are sequentially started after a time delay, and the receiving elements receive the signal transmitted by the corresponding transmitting elements;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
Because the opening and closing of the diodes are sequentially carried out according to the time sequence and do not need the same signal to synchronize, the control is called asynchronous control, and meanwhile, due to the fact that the clock of the controller is accurate enough, the controller can normally work for a long time once time setting, so that the time setting operation can be inserted at the time setting interval, the accumulated error is eliminated, and errors caused by overlarge clock deviation of two sides are prevented.
Preferably, the interval setting correction time is equal to at least the time when one frame is scanned.
Fig. 2 is a schematic diagram of timing of an asynchronous bilateral screen without intermediate routing according to an embodiment of the present invention, and as shown in fig. 2, specific timing schedule of the timing of the embodiment is as follows:
the sync signal transmitter tube T0 on the receiver frame transmits a signal at time T0, and the sync signal receiver tube R0 on the transmitter frame receives a signal at time T1.
After the synchronous signal transmitting tube on the receiving frame transmits the signal, delaying for (t2-t0) time, starting to turn on the receiving element D1 and waiting for the signal;
after the synchronous signal receiving tube on the transmitting frame receives the signal, delaying for (t2-t1) time, the transmitting element E1 can be started to transmit the signal;
the receiving element on the receiving frame continues to delay (t3-t2) for a time, waits for the signal to be established, collects the signal, delays (t4-t3) after the signal is collected, and continues to scan the next diode; the emission block is delayed (t4-t2) by the time before it continues to scan the next diode.
Since these time intervals are fixed, both sides can work separately according to their own steps as long as a start time is determined.
It should be noted that, the above discloses a one-to-one scanning logic, and an actual infrared screen generally adopts a one-to-many receiving mode, that is, one transmitting tube is opened, and multiple receiving tubes are opened at the same time, and the scanning logic is similar to the one-to-one scanning logic and is not described again.
For the sake of reliability, this embodiment may further provide a plurality of groups of synchronous time-setting lamp groups.
In a second embodiment, the synchronous time-setting lamp set includes a transmitting tube unit and a receiving tube unit, the transmitting tube unit includes at least two transmitting elements that are simultaneously lighted and emit specific frequencies, and the receiving tube unit includes at least two receiving elements that are correspondingly disposed corresponding to the transmitting tube unit. The transmitting tube unit comprises two transmitting elements which are respectively positioned at the head end and the tail end of the transmitting frame and simultaneously lighten and send specific frequencies, and the receiving tube unit comprises two receiving elements which are respectively positioned at the head end and the tail end of the receiving frame.
A working method based on the asynchronous bilateral screen without the intermediate routing comprises the following steps:
s1, electrifying and initializing, wherein the receiving tube unit waits for the time tick signal of the transmitting tube unit;
s2, all the emitting elements in the emitting tube unit are lighted with specific frequency, time setting signals are sent out, the emitting elements on the emitting frame are sequentially started after time delay for a period of time, the receiving elements in the receiving tube unit receive the time setting signals, the time delay for a period of time is waited for signal establishment, and then the receiving elements on the receiving frame are sequentially started;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
Preferably, the interval setting correction time is equal to at least the time when one frame is scanned.
Because multiple emission tubes are generally not illuminated simultaneously during normal scanning. Therefore, when the head lamp and the tail lamp of the transmitting tube are simultaneously lighted, the head lamp and the tail lamp of the receiving tube can simultaneously detect signals, and therefore, the initial moment can be determined in such a way.
Therefore, the asynchronous double-sided screen without intermediate wiring in the structure is adopted, the traditional intermediate wiring is replaced by optical signal timing, the processing and the arrangement are convenient, and the asynchronous double-sided screen is particularly suitable for occasions with difficult intermediate wiring.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a not have asynchronous bilateral screen of line in middle, includes emission frame, receiving frame and controller, it has a plurality of transmitting element to arrange in proper order on the emission frame, on the receiving frame and corresponding transmitting element's position is provided with receiving element, transmitting element with the region that receiving element encloses is contact area, its characterized in that: the system also comprises a synchronous time-setting lamp group used for correcting the transmitting and receiving time through the optical signal.
2. The asynchronous bilateral screen without intermediate traces of claim 1, wherein: the synchronous time tick lamp group comprises a synchronous signal transmitting tube and a synchronous signal receiving tube which are arranged outside the contact area, and the synchronous signal transmitting tube and the synchronous signal receiving tube are correspondingly arranged.
3. The asynchronous bilateral screen without intermediate traces of claim 2, wherein: the synchronous signal transmitting tube is arranged on the receiving frame, and the synchronous signal receiving tube is arranged on the transmitting frame.
4. The asynchronous bilateral screen without intermediate traces of claim 1, wherein: the synchronous time-setting lamp group comprises a transmitting tube unit and a receiving tube unit, the transmitting tube unit comprises at least two transmitting elements which are simultaneously lightened and emit specific frequency, and the receiving tube unit comprises at least two receiving elements which are correspondingly arranged corresponding to the transmitting tube unit.
5. The asynchronous bilateral screen without intermediate traces of claim 4, wherein: the transmitting tube unit comprises two transmitting elements which are respectively positioned at the head end and the tail end of the transmitting frame and simultaneously lighten and send specific frequencies, and the receiving tube unit comprises two receiving elements which are respectively positioned at the head end and the tail end of the receiving frame.
6. An operating method of an asynchronous bilateral screen without intermediate routing according to any one of the claims 1, 2 and 3, characterized in that: the method comprises the following steps:
s1, electrifying and initializing, wherein the synchronous signal receiving tube on the transmitting frame waits for receiving the time tick signal of the synchronous signal transmitting tube on the receiving frame;
s2, the synchronous signal transmitting tube is lighted up to send out a time-setting signal, a time delay is carried out for waiting for the signal to be established, then the receiving elements are sequentially started, the synchronous signal receiving tube receives the time-setting signal, the transmitting elements are sequentially started after a time delay, and the receiving elements receive the signal transmitted by the corresponding transmitting elements;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
7. The operating method of an asynchronous bilateral screen without intermediate traces according to claim 6, wherein: the interval setting correction time is equal to the time of at least scanning one frame.
8. An operating method of an asynchronous bilateral screen without intermediate routing according to any one of the preceding claims 1, 4 and 5, characterized in that: the method comprises the following steps:
s1, electrifying and initializing, wherein the receiving tube unit waits for the time tick signal of the transmitting tube unit;
s2, all the emitting elements in the emitting tube unit are lighted with specific frequency, time setting signals are sent out, the emitting elements on the emitting frame are sequentially started after time delay for a period of time, the receiving elements in the receiving tube unit receive the time setting signals, the time delay for a period of time is waited for signal establishment, and then the receiving elements on the receiving frame are sequentially started;
s3, the time is corrected at intervals, and the process returns to step S1 to correct the time again.
9. The operating method of an asynchronous bilateral screen without intermediate traces according to claim 8, wherein: the interval setting correction time is equal to the time of at least scanning one frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780875.8A CN113535007A (en) | 2021-07-10 | 2021-07-10 | Asynchronous bilateral screen without intermediate wiring and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780875.8A CN113535007A (en) | 2021-07-10 | 2021-07-10 | Asynchronous bilateral screen without intermediate wiring and working method thereof |
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| CN113535007A true CN113535007A (en) | 2021-10-22 |
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| CN202110780875.8A Pending CN113535007A (en) | 2021-07-10 | 2021-07-10 | Asynchronous bilateral screen without intermediate wiring and working method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305924A (en) * | 2011-06-24 | 2012-01-04 | 广州视睿电子科技有限公司 | Infrared positioning method and equipment |
| CN104795010A (en) * | 2015-04-16 | 2015-07-22 | 济宁科力光电产业有限责任公司 | Wireless safety light curtain detecting method and light curtain thereof |
| CN105259588A (en) * | 2015-11-04 | 2016-01-20 | 常州工学院 | Light curtain detection device without dedicated sync cable, and method therefor |
| CN105510988A (en) * | 2016-01-27 | 2016-04-20 | 杭州赛加得传感器有限公司 | Safety light curtain system |
| CN110471126A (en) * | 2019-08-28 | 2019-11-19 | 沈阳中光电子有限公司 | A kind of light curtain sensor |
| CN110980465A (en) * | 2019-12-30 | 2020-04-10 | 苏州和阳电气有限公司 | Method for mutually confirming and synchronizing transceiving rhythm among light curtain transceiving devices |
| CN112034525A (en) * | 2020-08-25 | 2020-12-04 | 广州安协科技股份有限公司 | Correlation light curtain without synchronization, detection system and detection method |
-
2021
- 2021-07-10 CN CN202110780875.8A patent/CN113535007A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305924A (en) * | 2011-06-24 | 2012-01-04 | 广州视睿电子科技有限公司 | Infrared positioning method and equipment |
| CN104795010A (en) * | 2015-04-16 | 2015-07-22 | 济宁科力光电产业有限责任公司 | Wireless safety light curtain detecting method and light curtain thereof |
| CN105259588A (en) * | 2015-11-04 | 2016-01-20 | 常州工学院 | Light curtain detection device without dedicated sync cable, and method therefor |
| CN105510988A (en) * | 2016-01-27 | 2016-04-20 | 杭州赛加得传感器有限公司 | Safety light curtain system |
| CN110471126A (en) * | 2019-08-28 | 2019-11-19 | 沈阳中光电子有限公司 | A kind of light curtain sensor |
| CN110980465A (en) * | 2019-12-30 | 2020-04-10 | 苏州和阳电气有限公司 | Method for mutually confirming and synchronizing transceiving rhythm among light curtain transceiving devices |
| CN112034525A (en) * | 2020-08-25 | 2020-12-04 | 广州安协科技股份有限公司 | Correlation light curtain without synchronization, detection system and detection method |
Non-Patent Citations (2)
| Title |
|---|
| 徐强等: "基于ＦＰＧＡ的高速光幕同步系统设计与实现", 《计算机测量与控制》, vol. 24, no. 8, 25 August 2016 (2016-08-25), pages 294 - 297 * |
| 陈杰等: "光触发同步的安全光幕设计和实现", 《南京师范大学学报(工程技术版)》, vol. 13, no. 2, 28 April 2013 (2013-04-28), pages 13 - 17 * |
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