Three-channel time difference positioning device

A time-difference positioning and three-channel technology, which is applied in positioning, measuring devices, instruments, etc., can solve the problems of manual triggering, weak overall scalability, and lack of accurate acquisition of multiple channels, and achieve high acquisition accuracy, large collection data, and wide range of effects

Inactive Publication Date: 2017-11-17
CHENGDU PUNUO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the device has a large amount of calculation and requires powerful processing capabilities, and its hardware resource configuration requirements are high. If the user wants to mount an independent GPU graphics card on the industrial computer, there is no extra slot to mount the PCIE AD capture card and Other acquisition cards have poor overall scalability, and the acquisition cards currently on the market cannot perform external triggering, timing triggering, or manual triggering, and there is no device that allows multiple channels to perform accurate acquisition

Method used

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  • Three-channel time difference positioning device

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Experimental program
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Effect test

Embodiment 2

[0019] In this embodiment, the type selection is carried out on the basis of the first embodiment. In this solution, the multi-output phase-locked loop AD9516-1 with an integrated frequency divider of ADI Company is selected. The frequency of the VCO is 2300-2650 MHz. The reference input frequency range is 0-250MHz. It is already known that the output clock of AD9516 is the key to determine the synchronization of the three channels in this solution. The frequency in the external clock channel is 2300-2650 MHz, and the input frequency is 0-250 MHz. The selected frequency is within this range, and real-time control can be carried out through the internal oscillation frequency.

Embodiment 3

[0021] In this embodiment, on the basis of Embodiment 1, the industrial computer further includes a heat dissipation plate and a fan, the heat dissipation plate is provided with the upper part and the bottom of the AD acquisition card, and the fan is arranged on the end surface of the industrial computer housing. Due to the use of three channels for acquisition, the calorific value of the AD acquisition card is 50% higher than that of the dual channels. It is necessary to install heat dissipation plates on the upper and bottom of the AD acquisition card to dissipate heat. In order to dissipate the heat of the entire industrial computer, the industrial control The heat inside the machine is dissipated by fans.

Embodiment 4

[0023] In this embodiment, on the basis of the first embodiment, the data in each channel of the acquisition sub-card is input to the board through the input signal, the input signal is a broadband signal, and the signal frequency is less than 150 MHz. The signal input bandwidth supported by the acquisition daughter card itself is 1.4GHz. The input adopts AC coupling. According to the requirements of the input signal, select the balun TC1-1T to realize the AC coupling input of the signal. The 3dB bandwidth of the balun is 0.4MHz to 500MHz. Therefore, The input frequency range of the acquisition board is the largest and supports 500MHz input. The trigger control channel performs signal input on the board through three ways: external trigger, timing trigger, and manual trigger. It can be triggered in various ways to carry out continuous acquisition, and the industrial computer controls the start / end data acquisition of the AD acquisition card.

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Abstract

The invention discloses a three-channel time difference positioning device. The three-channel time difference positioning device comprises an industrial control computer and a high speed AD acquisition card, wherein the industrial control computer is internally provided with an industrial main board, a CPU processor, a memory and an electronic disc. The positioning device is characterized in that the industrial main board of the industrial control computer is provided with an acquisition card, the AD acquisition card comprises a board carrier and an acquisition sub card, the acquisition sub card is internally provided with at least more than three channels, data is acquired, an external clock channel and a trigger control channel are further provided, the data is processed, stored and displayed in real time, all the channels are transmitted to the industrial control computer through the board carrier, and time difference positioning algorithm operation is carried out through an output clock of the clock channel. The positioning device is advantaged in that a multi-path output phase-locked loop of an integrated frequency divider is employed by the output clock, through the phase-locked positioning loop, frequency and phase of an internal oscillation signal of the loop are controlled through an external input reference signal, automatic tracking of output signal frequency for input signal frequency is realized, and acquisition precision for simultaneously acquiring the multiple channels can be guaranteed.

Description

technical field [0001] The invention relates to a time difference positioning device, in particular to a three-channel time difference positioning device. Background technique [0002] Currently, the dual-channel or single-channel data acquisition commonly used in the market needs to collect data from two or one channel at the same time, and perform real-time processing, data storage and display. Therefore, the device has a large amount of calculation and requires powerful processing capabilities, and its hardware resource configuration requirements are high. If the user wants to mount an independent GPU graphics card on the industrial computer, there is no extra slot to mount the PCIE AD capture card and Other acquisition cards have poor overall scalability, and the acquisition cards currently on the market cannot perform external triggering, timing triggering, or manual triggering, and there is no device that allows multiple channels to perform accurate acquisition. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/00
CPCG01S5/00
Inventor 荣彬杰夏思宇吴东
Owner CHENGDU PUNUO TECH CO LTD
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