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Long-period monitoring device and method for reference utc time source

A monitoring device and time source technology, which is applied in the field of avionics, can solve the problems of poor reliability of detection results, lack of real-time performance, and time-consuming and energy-consuming problems, and achieve the effects of saving manpower, having real-time performance, and reducing missed inspections

Active Publication Date: 2018-06-29
FIYTA HOLDINGS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art that manual monitoring of the transmission of the UTC time signal consumes a lot of time and energy, the work efficiency is low, and there will inevitably be missed detection, the reliability of the detection results is poor, and the problem of real-time performance is not available at the same time. The example provides a long-term monitoring device and method for a reference UTC time source

Method used

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  • Long-period monitoring device and method for reference utc time source
  • Long-period monitoring device and method for reference utc time source

Examples

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Embodiment 1

[0039] An embodiment of the present invention provides a long-term monitoring device for a reference UTC time source, see figure 1 ,include:

[0040] Control module 1, can comprise microcontroller 11 (for example: the one-chip computer of ATMEGA128 model, operating frequency is 11.0592MHz), is used to provide the time source module 12 of UTC timing signal (for example: the real-time clock chip of SD2205, and carries 32.768KHz Clock temperature-compensated crystal oscillator to achieve precise timing), bus communication module 13 for simulating aviation bus (for example: transceiver chip based on aviation bus protocol), and current and voltage detection module 14 for detecting current and voltage, time source module 12 and micro The controller 11 is electrically connected, and the microcontroller 11 is electrically connected with the reference UTC time source 4 to be tested through the bus communication module 13. The transmitted UTC time signal monitors the punctuality of the...

Embodiment 2

[0065] An embodiment of the present invention provides a long-term monitoring method for a reference UTC time source, which is applicable to the long-term monitoring device for a reference UTC time source described in Embodiment 1, see figure 2 , the method includes:

[0066] Step S21, providing a UTC time calibration signal to the reference UTC time source to be tested through the time source module.

[0067] Step S22, receiving the UTC time signal returned by the reference UTC time source to be tested according to the UTC time correction signal through the bus communication module.

[0068] Step S23, decoding the UTC time signal according to the preset aviation bus communication protocol to monitor the long-term punctuality of the reference UTC time source to be tested.

[0069] In this embodiment, the encoding format in the preset aviation bus communication protocol can be as follows: 32 bits per frame of the UTC time signal, encoding format: 1 to 8 bits are frame header ...

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Abstract

The invention discloses a long duration monitoring device and method for a reference UTC (Coordinated Universal Time) time source. The device includes a control module (1), a monitoring alarm module (2) and a power source module (3), wherein the control module includes a microcontroller (11), a time source module (12), a bus communication module (13) and a current voltage detecting module (14). According to the invention, the time source module is used for providing UTC timing signals for the to-be-detected reference UTC time source and the control module can be sued for monitoring the timing punctuality of the to-be-detected reference UTC time source in long duration. The working voltage and working current of the reference UTC time source are monitored through the current voltage detecting module. The microcontroller is also used for monitoring the power consumption of the to-be-detected reference UTC time source. Therefore, long-duration real time automatic monitoring of the working condition of the to-be-detected reference UTC time source can be realized by the monitoring device. Labor cost is reduced substantially and missing detection can be reduced; and the monitoring result reliability is enhanced.

Description

technical field [0001] The invention relates to the technical field of avionics, in particular to a long-term monitoring device and method for a reference UTC time source. Background technique [0002] Coordinated Universal Time (UTC for short), also known as Universal Time, Universal Standard Time, or International Coordinated Time, is a time measurement system that is based on atomic time and seconds and is as close as possible to Universal Time in terms of time. . [0003] In the field of aviation, the airborne UTC time source regularly sends UTC time signals to other airborne avionics equipment through the aviation bus. The UTC time signal is used as the time reference for the collaborative work of the airborne avionics equipment. One of the necessary and sufficient conditions for licensing. Therefore, the long-term stable and reliable operation of UTC time signal transmission is extremely important. [0004] The transmission of the UTC time signal requires long-term ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04R20/02
CPCG04R20/02
Inventor 王文晓曾庆宇屈哲巫玲坚鲍贤勇
Owner FIYTA HOLDINGS LTD