CN107728704B - Optical computing device based on digital micromirror device - Google Patents
Optical computing device based on digital micromirror device Download PDFInfo
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- CN107728704B CN107728704B CN201710961227.6A CN201710961227A CN107728704B CN 107728704 B CN107728704 B CN 107728704B CN 201710961227 A CN201710961227 A CN 201710961227A CN 107728704 B CN107728704 B CN 107728704B
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- G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
- G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
- G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
- G06E3/005—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements using electro-optical or opto-electronic means
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Abstract
The invention discloses an optical computing device based on a digital micromirror device, which comprises a data processing module, a light source coding module and an optical computing module. The light source coding module comprises an LED lamp, a digital micro-mirror device and a digital micro-mirror device driving module, and the light calculation module comprises a digital micro-mirror device, a digital micro-mirror device driving module and a photoelectric detector. The data processing module sends the data to be calculated to the light source coding module to realize the optical coding operation, and the data are represented by different light spots. The coded light irradiates on a digital micro-mirror device of the optical calculation module, logic operation is realized by deflecting digital micro-mirrors at different positions, and an operation result is reflected on the photoelectric converter to obtain a calculation result and is sent to the data processing module. Compared with the traditional method, the method has the advantages of improving the calculation speed, reducing the system realization complexity and being capable of carrying out cascade operation.
Description
Technical Field
The invention relates to the technical field of optical computers and optical computing, in particular to an optical computing device based on a digital micromirror device.
Background
At present, the integration level of a large-scale integrated circuit almost reaches the limit of physical electronics and process technology, and in order to meet the increasingly high requirements of people on high-speed calculation and effective processing of mass data, a parallel processing technology is an effective way for improving the calculation capability. The cross beams are not easy to interfere with each other compared with electrons, and meanwhile, the light beams can bear two-dimensional image information and have parallel processing capability.
To fully exploit the advantages of optical interconnection, such as rapidness, parallelism, and no interference, the parallelism of logic, operation, search, and system is developed, and the processing of optical signals in the system is preferably performed in a parallel and pipelined manner. While computers have certain requirements on the most basic logic devices that make up their systems, these requirements are mainly: cascading, having simple and complete logic function, having logic level reconstruction capability, the device must be capable of being fabricated into large arrays, etc. For a logic algebraic system, the use of and, or and not gates together can form any functional logic circuit, so that the and, or and not gates are a complete set. The complex logic (NAND), (NOR) AND logical NOT composed of logical NOT AND logical AND, logical OR respectively, OR the collection (AND. NOR), (OR, NOT) composed of logical NOT AND logical OR are complete collection, AND the gates in the complete collection can form any logic circuit.
The optical calculation part of the traditional optical processor is realized by cascading optical correlators, such as AND logic operation is realized by 4f system AND 8f system spatial filtering, AND the scheme has extremely strong dependence on the performance of optical devices, large volume AND poor reconstruction capability of logic stages.
Disclosure of Invention
The invention aims to provide an optical computing device based on a digital micro-mirror device, which aims at overcoming the defects of the prior art, realizes a simple and complete logic function required by optical computation through a digital micro-mirror, has a faster computing speed and a simpler system structure, and can realize the characteristic of high-speed off computation without depending on a complex optical structure.
The specific technical scheme for realizing the aim of the invention is as follows:
the device is characterized by comprising a data processing module, a light source coding module and a calculating module, wherein the data processing module is respectively connected with the light source coding module and the calculating module, and the light source coding module is connected with the calculating module; wherein:
the light source coding module comprises an LED lamp, a first digital micro-mirror device and a first digital micro-mirror device driving module, wherein the LED lamp is connected with the first digital micro-mirror device, the first digital micro-mirror device is connected with the first digital micro-mirror device driving module, and the first digital micro-mirror device driving module is connected with the data processing module;
the computing module comprises a second digital micro-mirror device, a second digital micro-mirror device driving module and a photoelectric detector, wherein the second digital micro-mirror device is respectively connected with the second digital micro-mirror device driving module and the photoelectric detector, the second digital micro-mirror device driving module and the photoelectric detector are respectively connected with the data processing module, and the second digital micro-mirror device is connected with the first digital micro-mirror device.
The device for realizing the optical calculation comprises the following specific steps:
step 1: optical coding is completed on two data needing to be calculated through a first digital micro-mirror device in the light source coding module
I) irradiating the light emitted by the LED lamp onto the first digital micro-mirror device;
ii) the data processing module sends the data to be calculated to the first digital micro-mirror device driving module, the first digital micro-mirror device driving module controls the deflection state of the digital micro-mirrors, the data to be calculated is encoded by taking four micro-mirrors of the first digital micro-mirror device as a unit, and light spots with different arrangement modes represent the corresponding combination results of different data, so that the optical encoding process of the data is realized;
step 2: optical computing
I) the optical signal coded by the light source coding module irradiates on a second digital micro-mirror device;
ii) the data processing module sends the logic operation to be performed to the second digital micromirror device driving module, the second digital micromirror device driving module controls the deflection states of the digital micromirrors at different positions, realizes the corresponding logic operation, and reflects the corresponding logic operation result to the photoelectric detector;
and iii) irradiating the optical signals subjected to optical calculation through the second digital micro-mirror device onto a photoelectric detector, sending the detection result to a data processing module by the photoelectric detector, obtaining the optical calculation result through identifying the existence and combination sequence of the signals, and sending the data to a first digital micro-mirror device driving module again to realize cascade operation.
The invention solves the problems of complex, large volume and complex optical structure of the existing optical computing equipment, uses an advanced digital micromirror device to perform optical computation, reduces the volume and improves the parallel processing capability at the same time; using a programmable controlled digital micromirror device, multiple logic calculations can be performed simultaneously.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a light source coding module according to the present invention;
FIG. 3 is a schematic diagram of a computing module according to the present invention;
FIG. 4 is a schematic diagram of light source coding;
FIG. 5 shows the states of the digital micromirror switch corresponding to different logic operations;
FIG. 6 is a schematic diagram of optical codes corresponding to two numbers of logical operations "1" and "1", respectively;
FIG. 7 is a diagram of the digital micromirror switch state corresponding to OR logic operation.
Detailed Description
Referring to fig. 1, the present invention includes: a data processing module 1, a light source coding module 2 and a calculating module 3. The data processing module 1 is respectively connected with the light source coding module 2 and the calculating module 3, and the light source coding module 2 is connected with the calculating module 3. The data processing module 1 controls the light source coding module 2 to perform optical logic coding according to the data calculated as required, the coded light irradiates the calculation module 3, the calculation module 3 reflects the light at different positions according to different logic operation operations, the data is transmitted to the data processing module 1 after photoelectric conversion, and the data processing module 1 obtains an optical calculation result according to the existence and combination sequence of the optical signals.
Referring to fig. 2, fig. 2 is a schematic diagram of a light source coding module according to the present invention. The light source coding module 2 includes: the LED lamp 4, the first digital micro-mirror device 5 and the first digital micro-mirror device driving module 6, wherein the LED lamp 4 is connected with the first digital micro-mirror device 5, the first digital micro-mirror device 5 is respectively connected with the first digital micro-mirror device driving module 6 and the second digital micro-mirror device 7, and the data processing module 1 is connected with the first digital micro-mirror device driving module 6. The light generated by the LED lamp 4 irradiates on the first digital micro-mirror device 5; the data processing module 1 sends two data to be calculated to the first digital micromirror driving circuit 6, the first digital micromirror device driving module 6 encodes the calculated data by taking four digital micromirrors as a unit according to the arrangement condition of the data, and different arranged light spots are used for representing different data.
Referring to fig. 3, fig. 3 is a schematic diagram of a computing module according to the present invention. The computing module 3 comprises a second digital micro-mirror device 7, a second digital micro-mirror device driving module 8 and a photoelectric detector 9, wherein the second digital micro-mirror device 7 is respectively connected with the second digital micro-mirror device driving module 8, the first digital micro-mirror device 5 and the photoelectric detector 9, and the data processing module 1 is connected with the second digital micro-mirror device driving module 8 and the photoelectric detector 9. The light coded by the light source coding module 2 irradiates the second digital micro-mirror device 7, the data processing module 1 transmits the logic operation to be performed to the second digital micro-mirror device driving module 8, controls the on-off state of the second digital micro-mirror device 7, and reflects the results of different logic operations to the photoelectric detector 9 to realize different logic operations. The photoelectric detector 9 sends the detection result to the data processing module 1, the data processing module 1 obtains the optical calculation result through identifying the existence and combination sequence of the signals, and the calculation result can be sent to the first digital micromirror device driving module 6 again to realize cascade operation.
Referring to fig. 4, fig. 4 is a schematic diagram of optical coding. The two numbers to be calculated are optically encoded with each four digital micromirrors of the digital micromirror device as a unit. When the two numbers to be operated are "0" and "0", respectively, the deflection states of the four digital micromirrors are as shown in a, and it can be known that the states of the four digital micromirrors corresponding to the unit are "ON", "OFF", and the arrangement effects of the light spots are "bright", "dark", respectively. When the two numbers to be operated are "1" and "0", respectively, the deflection states of the four digital micromirrors are shown as b in the figure, and it can be known that the states of the four digital micromirrors corresponding to the unit are "ON", "OFF", "ON", and the arrangement effects of the light spots are "ON", "OFF", "bright", and "bright", respectively. When the two numbers to be operated are "0" and "1", respectively, the deflection states of the four digital micromirrors are shown as c in the figure, and it can be known that the states of the four digital micromirrors corresponding to the unit are "ON", "OFF", "ON", and the arrangement effects of the light spots are "bright", "OFF", "bright", respectively. When the two numbers to be operated are "1" and "1", respectively, the deflection states of the four digital micromirrors are shown as d in the figure, and it can be known that the states of the four digital micromirrors corresponding to the unit are "OFF", "ON", and the arrangement effects of the light spots are "OFF", "bright", and "bright", respectively.
Referring to fig. 5, fig. 5 shows states of the digital micromirror corresponding to different logic operations. The optical calculation is performed with every four digital micromirrors of the digital micromirror device as a unit. The logic operation is completed by controlling the on-off state of the digital micromirror. When the AND operation is performed, the on-off states of the four digital micromirrors are shown as a in the figure, and the result of the AND logic operation is 1 only when two effective light spots are detected simultaneously on the photodetector 9, otherwise, is 0. When the or operation is performed, the on-off state of the four digital micromirrors is shown as b in the figure, when the photodetector 9 detects the effective light spot, the or logic operation result is 1, otherwise, it is 0. When the non-operation is performed, the on-off states of the four digital micromirrors are shown as c in the figure, and when the photodetector 9 detects an effective light spot, the non-logic operation result is 1, otherwise, it is 0.
Examples
There is an increasing demand for high-speed computing and efficient processing of mass data, and the integration level of large-scale integrated circuits almost reaches the bottleneck, and the advantages of optical computing are becoming more prominent.
The digital micromirror device may employ DLP4500 digital micromirror device of TI company, which can rapidly, accurately and efficiently control visible light to generate a pattern. The digital micromirror device driving module is a special driving module realized by an FPGA (programmable gate array) and controls the deflection state of each digital micromirror in the DLP4500 digital micromirror device. The data processing module can be realized by adopting a TMS320 series chip of TI company or a Kintex-7 chip of Xilinx company, and a corresponding circuit can be built by using a 74LS series chip according to the requirement, so that the data transmission, the data reception and the cascade operation are realized.
When two numbers to be calculated in the data processing module are 1 and 1 respectively and OR operation is carried out, the '1 1' is sent to the first digital micro-mirror device driving module, and an OR operation command is sent to the second digital micro-mirror device driving module. The four digital micromirrors of the first digital micromirror device are used as a coding unit to code the light uniformly irradiated by the LEDs on the first digital micromirror device, and the obtained light spot arrangement results are shown in fig. 4 a and 6, and are respectively "off", "on", "bright". The result of the optical coding irradiates on the second digital micro-mirror device, the second digital micro-mirror device takes four digital micro-mirrors as a calculation unit, and the second digital micro-mirror device driving module controls the second digital micro-mirror device to complete logic operation. Since the logical operation is an or operation, the deflection state of the digital micromirror is as shown in fig. 7 b of fig. 5, and only the digital micromirror at the lower right corner of the calculation unit is turned over, the light encoding result of the corresponding digital micromirror irradiated to the calculation unit is reflected to the photoelectric converter to obtain a bright light spot. The photoelectric converter obtains a high level, namely a calculation result is '1', and the result is sent to the data processing module.
The invention can process a large amount of data operation in parallel, for example, when binary numbers of AND operation are 10001010 and 00010101, bit alignment of two data is split into 10, 00, 01, 10, 11, 10 and 11, and the two data are divided into 8 units for optical coding and logic operation. The invention can quickly send the operation result in the data processing module into the system again for operation, and the calculation units formed by different digital micromirrors in the digital micromirror device are mutually independent, so that multiple operations can be simultaneously carried out. The invention can assist the digital micromirror device to perform mass optical computation through a simple integrated circuit, and can form cyclic operation to realize cascade operation.
Claims (2)
1. The optical computing device based on the digital micromirror device is characterized by comprising a data processing module (1), a light source coding module (2) and a computing module (3), wherein the data processing module (1) is respectively connected with the light source coding module (2) and the computing module (3), and the light source coding module (2) is connected with the computing module (3); wherein:
the light source coding module comprises an LED lamp (4), a first digital micro-mirror device (5) and a first digital micro-mirror device driving module (6), wherein the LED lamp (4) is connected with the first digital micro-mirror device (5), the first digital micro-mirror device (5) is connected with the first digital micro-mirror device driving module (6), and the first digital micro-mirror device driving module (6) is connected with the data processing module (1);
the calculation module comprises a second digital micro-mirror device (7), a second digital micro-mirror device driving module (8) and a photoelectric detector (9), wherein the second digital micro-mirror device (7) is respectively connected with the second digital micro-mirror device driving module (8) and the photoelectric detector (9), the second digital micro-mirror device driving module (8) and the photoelectric detector (9) are respectively connected with the data processing module (1), and the second digital micro-mirror device (7) is connected with the first digital micro-mirror device (5).
2. The apparatus of claim 1, wherein the performing of the light calculation comprises the specific steps of:
step 1: optical encoding of the data to be calculated is completed through a first digital micromirror device in the light source encoding module
I) irradiating the light emitted by the LED lamp onto the first digital micro-mirror device;
ii) the data processing module sends the data to be calculated to the first digital micro-mirror device driving module, the first digital micro-mirror device driving module controls the deflection state of the digital micro-mirrors, two data to be calculated are encoded by taking four micro-mirrors of the first digital micro-mirror device as a unit, and light spots with different arrangement modes represent the corresponding combination results of different data, so that the optical encoding process of the data is realized;
step 2: optical computing
I) the optical signal coded by the light source coding module irradiates on a second digital micro-mirror device;
ii) the data processing module sends the logic operation to be performed to the second digital micromirror device driving module, the second digital micromirror device driving module controls the deflection states of the digital micromirrors at different positions, realizes the corresponding logic operation, and reflects the corresponding logic operation result to the photoelectric detector;
and iii) irradiating the optical signals subjected to optical calculation through the second digital micro-mirror device onto a photoelectric detector, sending the detection result to a data processing module by the photoelectric detector, obtaining the optical calculation result through identifying the existence and combination sequence of the signals, and sending the data to a first digital micro-mirror device driving module again to realize cascade operation.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5548772A (en) * | 1991-12-18 | 1996-08-20 | Texas Instruments Incorporated | Parallel processing system with programmable optical interconnects |
| CN106301221A (en) * | 2016-09-19 | 2017-01-04 | 华东师范大学 | Quantum efficiency of solar battery detection method based on DMD and device |
| WO2017033197A1 (en) * | 2015-08-27 | 2017-03-02 | Bar-Ilan University | Multi optically-coupled channels module and related methods of computation |
| CN207367095U (en) * | 2017-10-17 | 2018-05-15 | 华东师范大学 | A kind of optical oomputing device based on Digital Micromirror Device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6775049B1 (en) * | 2003-01-20 | 2004-08-10 | Texas Instruments Incorporated | Optical digital signal processing system and method |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5548772A (en) * | 1991-12-18 | 1996-08-20 | Texas Instruments Incorporated | Parallel processing system with programmable optical interconnects |
| WO2017033197A1 (en) * | 2015-08-27 | 2017-03-02 | Bar-Ilan University | Multi optically-coupled channels module and related methods of computation |
| CN106301221A (en) * | 2016-09-19 | 2017-01-04 | 华东师范大学 | Quantum efficiency of solar battery detection method based on DMD and device |
| CN207367095U (en) * | 2017-10-17 | 2018-05-15 | 华东师范大学 | A kind of optical oomputing device based on Digital Micromirror Device |
Non-Patent Citations (2)
| Title |
|---|
| 一种基于DRAM的新型数字微镜器件设计;杨健乐;王淑仙;刘一清;;信息技术(第08期);全文 * |
| 数字微镜器件在光学矢量矩阵乘法器中的特性及应用分析;聂永名;胡文华;李修建;杨建坤;;光学与光电技术(第01期);全文 * |
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