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Spatial light modulator cluster control method and system

A technology of spatial light modulator and cluster control, applied in optical transmission system, free space transmission and other directions, to ensure the effect of time accuracy and content synchronization improvement

Pending Publication Date: 2021-04-16
斐思光电科技武汉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a spatial light modulator cluster control method and system, which solves the problem of simultaneous control of hundreds or thousands of spatial light modulators in reality

Method used

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  • Spatial light modulator cluster control method and system
  • Spatial light modulator cluster control method and system
  • Spatial light modulator cluster control method and system

Examples

Experimental program
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Embodiment 1

[0037] like image 3 As shown, this embodiment provides a spatial light modulator cluster control method in the first aspect, including the following steps:

[0038] S1. The topology of the network of the selected cluster;

[0039] During implementation, the cluster topology includes, but is not limited to, any one or a combination of a star structure, a bus structure, a ring structure, or a tree structure, and an appropriate network is selected according to the number and spatial location of the spatial light modulators in the cluster. Topology.

[0040] S2. Select a cluster networking connection channel according to the topology structure, and perform networking between the main controller and the spatial light modulator;

[0041] like figure 1 As shown, the cluster topology is a star structure, figure 2 The cluster topology diagram of the tree structure is shown. In specific implementation, the main controller is a logical main device, and the device can be but is not...

example 1

[0051] Example 1: Implement a cluster unidirectional control system for a star-shaped networking topology. The topology of the star-shaped structure is as follows figure 1 Shown: The main controller receives and sends the command machine controlled by the upper computer to feed back the cluster status command to the upper computer; in this example design, the upper computer is connected to the processor MCU of the main controller through the serial port; the main controller receives the trigger from the external input Control signal, in the design of this example, the external trigger uses 3.3V TTL level signal, and the interface uses SMA interface; the main controller has built-in sensors to detect changes in external parameter conditions and trigger cluster control; the main controller supports the preset stored in the main controller. Defined instructions, execute the instructions, and send control signals and commands to the cluster equipment; the cluster master control sen...

example 2

[0056] Example 2, for the tree-like networking topology to achieve two-way control of the cluster; the topology is as follows figure 2 The main controller in this example design uses the same hardware and firmware as other spatial light modulators in the cluster; the spatial light modulator includes uplink ports and downlink ports, and the uplink and downlink ports use SMA interfaces (Small A Type), The uplink interface is connected to the upper-level device of the cluster network, and the downlink interface is connected to the downlink device of the cluster network;

[0057] In this example, the cluster networking is completed through coaxial cables, the uplink and downlink ports are connected by a single cable, and the cluster control information is received and sent by time division multiplexing;

[0058] In this example, the main controller: communicates with the host computer through the USB interface, receives and feeds back the status command of the cluster to the host...

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Abstract

The invention discloses a spatial light modulator cluster control method and system. The method comprises the following steps of: selecting a networking topological structure of a cluster; selecting a cluster networking connection channel according to the topological structure, and carrying out networking between a main controller and a spatial light modulator; enabling the main controller to send a cluster control signal to the spatial light modulator in the cluster through a cluster networking connection channel; and enabling the spatial light modulator to receive the cluster control signal and the cluster control signal sent by the main controller or the uplink equipment. The invention can analyze the cluster control signal according to a protocol and adjust the running state of the local machine according to a cluster command. The main controller is arranged in a cluster to uniformly control all spatial light modulators in the cluster, the spatial light modulators receive a cluster control signal, and the operation state of a local machine is adjusted according to a cluster command, so that hundreds or thousands of spatial light modulators can be controlled at the same time.

Description

technical field [0001] The present invention is in the field of cluster control, in particular to a method and system for cluster control of spatial light modulators. Background technique [0002] As a dynamic light wave modulation device and tool, the spatial light modulator can modulate or select the phase, polarization, amplitude, wavelength, etc. of the light wave, and has programmable characteristics and time transformation characteristics. Therefore, how to better control the spatial light modulator and bring its functions and performance characteristics into play in the industrial field is the focus of the present invention, especially when dozens or even hundreds of spatial light modulator arrays are installed simultaneously Cluster control of spatial light modulators is particularly important in large devices that work. [0003] In the scientific literature, there are cases of using a small number (<50 sets) of spatial light modulators for array applications, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/11H04B10/80
Inventor 张观强殷长志
Owner 斐思光电科技武汉有限公司
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