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Communication apparatus and method between relatively moving devices

A communication device and relative motion technology, applied in wireless communication, wireless communication service, nan and other directions, can solve the problems of complex structure design and unfavorable integration, and achieve the effect of simple structure, improved service life and easy integration

Active Publication Date: 2017-10-10
HESAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] If there are multiple data transmission lines, it is necessary to make multi-layer LED-PD ring array pairs, and it is necessary to consider that there should be no light pollution between each LED-PD ring array pair, which will make the structural design very complicated and not conducive to integration

Method used

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  • Communication apparatus and method between relatively moving devices
  • Communication apparatus and method between relatively moving devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 Schematically presents a simplified structural diagram of a communication device between relatively moving devices in Embodiment 1 of the present invention, as shown in figure 1 As shown, the communication device between the relative motion equipment includes:

[0041] a first device, the first device is used to send a signal according to the received indication bit, and transmit it to the first recording device;

[0042] A first recording device, the first recording device is used to record and refresh the signal; the first recording device and the first device remain relatively stationary; for example, the first recording device is reflective or transmissive a liquid crystal device, which adjusts the arrangement direction of molecules of the liquid crystal unit according to the received signal;

[0043] a first reading device, the first reading device reads the signal recorded by the first recording device and transmits it to the second device; the first re...

Embodiment 2

[0057] The structure diagram of the communication device between devices in relative motion according to the embodiment of the present invention is different from Embodiment 1 in that:

[0058] In order to improve the signal transmission rate, the first recording device has at least two circles of recording bits with different rotation radii and spaced from each other; correspondingly, the number of the first reading devices is not less than the number of circles of the recording bits. That is, the number of the first reading devices corresponding to at least one circle of recording bits is one or more. like:

[0059] The recording bits are 2 circles, and the number of the first reading devices is 2, which correspond to the recording bits of each circle; the number of the first reading devices can also be 4, and the recording bits of each circle correspond to 2 first reading devices take the device.

Embodiment 3

[0061] figure 2 A schematic diagram of the structure of the communication device between devices in relative motion according to Embodiment 3 of the present invention is schematically presented, as shown in figure 2 As shown, the communication device between the relative moving devices includes:

[0062] a first device, the first device is configured to issue a signal according to the received indication bit and transmit it to the first recording device;

[0063] A first recording device, the first recording device is used to record the signal and refresh; the first recording device and the first device are kept relatively stationary; for example, the first recording device is a reflection type or a transmission type a liquid crystal device, which adjusts the arrangement direction of the molecules of the liquid crystal cell according to the received signal;

[0064] a first reading device, the first reading device reads the signal recorded by the first recording device and...

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Abstract

The invention provides a communication apparatus and method between relatively moving devices. The communication apparatus between relatively moving devices is characterized in that a first device emits a signal according to the received indicating bit; a first recording device records the signal and refreshes; a first reading device reads the signal recorded by the first recording device, and transmits the signal to a second device; the second device receives the signal transmitted from the first reading device; a first bit indicating device is provided with an indicating bit; a second reading device reads the indicating bit, and transmits the indicating bit to the first device; an indicating bit output from a second reading device and the signal output from the first reading device are corresponding to each other on the time aspect; and the second device and the first device keep relative movement. The communication apparatus and method between relatively moving devices have the advantages of being simple in structure, being long in service life, having no electromagnetic interference, and being high in transmission rate.

Description

technical field [0001] The invention relates to communication between devices, in particular to a communication device and method between relatively moving devices. Background technique [0002] At present, under the condition of coaxial rotation, the communication between the rotating shaft and the equipment on the fixed end mainly has the following channels: [0003] 1. Use slip rings to realize coaxial data transmission. For example, in the mechanical rotating lidar, the stator of the slip ring is connected to the stator of the lidar, and the rotor of the slip ring is connected to the rotor of the lidar; when rotating, the electrical signal is transmitted through the signal channel on the slip ring. The main disadvantages of this method are: [0004] When using a slip ring to realize coaxial data transmission, the slip ring inevitably has wear problems, is prone to friction and heat, and has a short service life. [0005] 2. Using electromagnetic induction coils to rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00G01S7/48
CPCG01S7/48
Inventor 陶俊孙文婷李一帆向少卿
Owner HESAI TECH CO LTD
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