CN112815980A - Automatic calibration method for receiving-in-motion sensor - Google Patents
Automatic calibration method for receiving-in-motion sensor Download PDFInfo
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- CN112815980A CN112815980A CN202011636634.8A CN202011636634A CN112815980A CN 112815980 A CN112815980 A CN 112815980A CN 202011636634 A CN202011636634 A CN 202011636634A CN 112815980 A CN112815980 A CN 112815980A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention discloses an automatic calibration method of a moving receiving sensor, which comprises the steps that before a carrier starts to work, the moving receiving sensor collects the temperature and the corresponding offset of the moving receiving sensor on a static carrier, a temperature-offset comparison table is established, when the moving receiving sensor deviates after the carrier starts to work, the offset at the current temperature is obtained according to the temperature-offset comparison table, and then the moving receiving sensor is calibrated, so that the automatic calibration of the moving receiving sensor is realized. The whole-process automatic measurement and calculation of the receiving-in-motion sensor is carried out without manual participation, the burden in production can be effectively reduced, and the receiving-in-motion sensor can be automatically calibrated by using an internally stored temperature-offset comparison table in the working process.
Description
Technical Field
The invention relates to a satellite alignment during moving, in particular to an automatic calibration method for a moving receiving sensor.
Background
In the field of satellite television, the advantages of the satellite television are more and more obvious, generally, a common television antenna can only statically receive satellite signals and cannot be used on a moving vehicle, and the satellite television has important application significance. The sensor of the moving receiver is a key of the moving receiver capable of automatically tracking the satellite, but the sensor has static errors and can change along with temperature, and the sensor of the moving receiver generates offset image equipment along with temperature change.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention provides an automatic calibration method for a mobile receiving sensor, which can automatically acquire the corresponding relation between the temperature and the offset of the mobile receiving sensor and adjust the offset according to the corresponding relation.
The technical scheme is as follows: in order to achieve the design purpose, the technical scheme adopted by the invention is an automatic calibration method of a mobile transceiver sensor, which comprises the following steps:
(1) initializing a moving folding and unfolding machine;
(2) judging whether the carrier where the medium-sized and medium-sized sensors are located is in a static state or a moving state;
if the carrier of the middle-sized receiving sensor is in a motion state, acquiring an offset which is closest to the current temperature according to a temperature-offset comparison table in the middle-sized receiving sensor to correct the error of the middle-sized receiving sensor, and executing the step (3);
if the carrier where the moving receiving sensor is located is in a static state, acquiring the temperature and the offset of the moving receiving sensor on the static carrier, updating a temperature-offset comparison table built in the moving receiving sensor, and then re-executing the step (2) to judge the carrier state;
(3) monitoring the temperature of a receiving sensor in motion on a motion carrier and the voltage value of a satellite beacon acquired by the receiving sensor in motion in real time;
(4) judging whether the receiving sensor generates offset in real time; if the moving receiving sensor generates offset, executing the step (5); if the deviation is not generated by the middle receiving sensor, executing the step (2);
(5) if the voltage value of the satellite beacon is reduced and the temperature is obviously changed, acquiring the offset closest to the current temperature according to the temperature-offset comparison table in the step (2) to correct the error of the receiving sensor in the process of receiving the satellite beacon; and then repeating the step (3) and the step (4).
Further, the step (2) of establishing the built-in temperature-offset comparison table in the midsummer includes the following steps:
(2.1) collecting the temperature and the static offset of a receiving sensor on a static carrier;
(2.2) filtering the static offset collected in the step (2.1) through a sliding average value to obtain an offset average value corresponding to the temperature;
and (2.3) establishing a temperature-offset comparison table according to the temperature data in the steps (2.1) and (2.2) and the corresponding offset mean value data.
Further, the sampling frequency of the data of the receiving sensor in the step (2.1) is 100Hz, and the acquisition time is 3 seconds.
Further, in the step (2), whether the carrier where the central sensor is located is in a static state or a moving state is judged by calculating the fluctuation of the central sensor.
Further, in the step (2), if the carrier where the medium-reception sensor is located is in a static state, the medium-reception antenna is stopped when the maximum signal point is found.
Further, the temperature and the dynamic offset of the transmitting and receiving sensor in the step (5) are collected, and the collected temperature and the collected dynamic offset are stored and the temperature-offset comparison table is updated.
Has the advantages that: compared with the prior art, the method has the obvious advantages that the whole-process automatic measurement and calculation of the receiving-in-motion sensor is realized, manual participation is not needed, the burden in production can be effectively reduced, the receiving-in-motion sensor can use the internally stored temperature-offset comparison table in the working process, and the automatic calibration of the receiving-in-motion sensor is realized, and the method is quick, simple and convenient.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
As shown in fig. 1, the automatic calibration method for a mobile transceiver sensor according to the present invention includes the following steps:
(1) initializing a moving folding and unfolding machine;
(2) after the mobile transceiver starts up, the mobile transceiver automatically judges the state of the carrier in real time, and judges whether the carrier of the mobile transceiver is in a static state or a moving state according to the fluctuation of the mobile transceiver sensor;
if the carrier of the middle-sized receiving sensor is in a motion state, acquiring an offset which is closest to the current temperature according to a temperature-offset comparison table in the middle-sized receiving sensor to correct the error of the middle-sized receiving sensor, and executing the step (3);
if the carrier where the moving receiving sensor is located is in a static state, acquiring the temperature and the offset of the moving receiving sensor on the static carrier, updating a temperature-offset comparison table built in the moving receiving sensor, and then re-executing the step (2) to judge the carrier state; and the medium antenna stops when the maximum signal point is found.
The establishment of the built-in temperature-offset comparison table of the middle income system comprises the following steps:
(2.1) collecting the temperature and the static offset of a receiving sensor on a static carrier, setting the sampling frequency to be 100Hz, and the collecting time to be 3 seconds to obtain 300 groups of data;
(2.2) filtering the static offset collected in the step (2.1) by a sliding average value, and then obtaining an offset average value corresponding to the temperature by an average method;
(2.3) establishing a temperature-offset comparison table according to the temperature data in the steps (2.1) and (2.2) and the corresponding offset mean value data;
(3) under the condition of carrier motion, the moving receiving real-time monitors the temperature of a moving receiving sensor on a moving carrier and the voltage value of a satellite beacon acquired by the moving receiving sensor;
(4) judging whether the receiving sensor generates offset in real time; if the moving receiving sensor generates offset, executing the step (5); if the deviation is not generated by the middle receiving sensor, executing the step (2);
(5) if the voltage value of the satellite beacon is reduced and the temperature is obviously changed, the mobile receiving sensor generates offset, the offset closest to the current temperature is obtained according to the temperature-offset comparison table in the step (2) to correct the error of the mobile receiving sensor, the temperature and the dynamic offset of the mobile receiving sensor are collected at the same time, and the collected temperature and the dynamic offset are stored and the temperature-offset comparison table is updated; and (4) repeating the step (3) and the step (4) after correcting the middle-sized and medium-sized sensor.
In the working process of the carrier, if the moving receiving sensor does not generate offset, whether the carrier where the moving receiving sensor is located is in a static state or a moving state is judged by monitoring data of the sensor.
The method is characterized in that the mobile receiving equipment is arranged in an actual use environment, the mobile receiving factory can be calibrated once in a static state to obtain an initial temperature-offset comparison table, a client can calibrate the sensor by using the initial temperature-offset comparison table for the first time, an accurate offset value is tested by using the method, and the offset value is automatically called.
Claims (6)
1. An automatic calibration method for a mobile sensor is characterized by comprising the following steps:
(1) initializing a moving folding and unfolding machine;
(2) judging whether the carrier where the medium-sized and medium-sized sensors are located is in a static state or a moving state;
if the carrier of the middle-sized receiving sensor is in a motion state, acquiring an offset which is closest to the current temperature according to a temperature-offset comparison table in the middle-sized receiving sensor to correct the error of the middle-sized receiving sensor, and executing the step (3);
if the carrier where the moving receiving sensor is located is in a static state, acquiring the temperature and the offset of the moving receiving sensor on the static carrier, updating a temperature-offset comparison table built in the moving receiving sensor, and then re-executing the step (2) to judge the carrier state;
(3) monitoring the temperature of a receiving sensor in motion on a motion carrier and the voltage value of a satellite beacon acquired by the receiving sensor in motion in real time;
(4) judging whether the receiving sensor generates offset in real time; if the moving receiving sensor generates offset, executing the step (5); if the deviation is not generated by the middle receiving sensor, executing the step (2);
(5) if the voltage value of the satellite beacon is reduced and the temperature is obviously changed, acquiring the offset closest to the current temperature according to the temperature-offset comparison table in the step (2) to correct the error of the receiving sensor in the process of receiving the satellite beacon; and then repeating the step (3) and the step (4).
2. The method according to claim 1, wherein the step (2) of establishing the built-in temperature-offset comparison table in the midship comprises the following steps:
(2.1) collecting the temperature and the static offset of a receiving sensor on a static carrier;
(2.2) filtering the static offset collected in the step (2.1) through a sliding average value to obtain an offset average value corresponding to the temperature;
and (2.3) establishing a temperature-offset comparison table according to the temperature data in the steps (2.1) and (2.2) and the corresponding offset mean value data.
3. The method according to claim 2, wherein the step (2.1) of collecting the data of the central sensor has a sampling frequency of 100Hz and a collecting time of 3 seconds.
4. The method according to claim 1, wherein the step (2) is performed by calculating the fluctuation of the central sensor to determine whether the carrier on which the central sensor is located is in a stationary state or in a moving state.
5. The method according to claim 1, wherein in the step (2), if the carrier on which the mobile station sensor is located is in a static state, the mobile station antenna stops when the maximum signal point is found.
6. The method according to claim 1 or 2, wherein the step (5) collects the temperature and the dynamic offset of the central sensor, stores the collected temperature and the dynamic offset and updates the temperature-offset comparison table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011636634.8A CN112815980A (en) | 2020-12-31 | 2020-12-31 | Automatic calibration method for receiving-in-motion sensor |
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| CN202011636634.8A CN112815980A (en) | 2020-12-31 | 2020-12-31 | Automatic calibration method for receiving-in-motion sensor |
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