CN103869262A - Measurement device of launch vehicle secondary electric power supply - Google Patents
Measurement device of launch vehicle secondary electric power supply Download PDFInfo
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- CN103869262A CN103869262A CN201410112146.5A CN201410112146A CN103869262A CN 103869262 A CN103869262 A CN 103869262A CN 201410112146 A CN201410112146 A CN 201410112146A CN 103869262 A CN103869262 A CN 103869262A
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Abstract
The invention discloses a measurement device of a launch vehicle secondary electric power supply. The measurement device comprises an alternating current-direct current conversion unit, a switching value detection unit and a PLC unit. The alternating current-direct current conversion unit and the switching value detection unit are respectively connected with the launch vehicle secondary electric power supply, and the alternating current-direct current conversion unit is used for detecting voltage change signals of the launch vehicle secondary electric power supply and sending the voltage change signals to the PLC unit; the switching value detection unit is used for detecting switching value signals of the launch vehicle secondary electric power supply and sending the switching value signals to the PLC unit; the PLC unit processes the received voltage change signals and the received switching value signals to obtain measurement data. The measurement device has the advantages that detection on the launch vehicle secondary electric power supply is achieved, whole-process voltage detection on the launch vehicle secondary electric power supply is achieved, and the reliability of ground interpretation of the launch vehicle secondary alternating current power supply is improved.
Description
Technical field
The present invention relates to a kind of carrier rocket uphole equipment, be specifically related to a kind of measurement mechanism of carrier rocket secondary power supply.
Background technology
At present, there is the problem that is difficult to detection in carrier rocket secondary AC power supply, in the prior art, can only carry out disposable measurement by the equipment of multimeter, lacks special measurement mechanism, is difficult to hyperchannel secondary AC power supply to be measured for a long time.Adopt technique scheme to detect at whole testing process secondary AC power supply on arrow, be difficult to find in time the fault of secondary power supply existence on arrow, have potential safety hazard, reliability is not high.
Therefore, be badly in need of wanting a kind of and can realize the measurement mechanism that carrier rocket secondary AC power supply is carried out to long-term cycle detection.
Summary of the invention
In order to overcome the defect existing in prior art, the invention provides a kind of measurement mechanism of carrier rocket secondary power supply, concrete technical scheme is as follows:
A measurement mechanism for carrier rocket secondary power supply, comprises AC-DC conversion unit, switching value unit and PLC unit; Wherein, AC-DC conversion unit is connected with carrier rocket secondary power supply respectively with switching value unit; AC-DC conversion unit is for detection of the voltage change signal of carrier rocket secondary power supply, and voltage change signal is sent to PLC unit; Switching value unit is for detection of the switching value signal of carrier rocket secondary power supply, and switching value signal is sent to PLC unit; PLC unit is processed the voltage change signal receiving and switching value signal, obtains measurement data.
As prioritization scheme, AC-DC conversion unit comprises an AC-DC conversion chip, and AC-DC conversion chip is converted to the ac voltage signal of carrier rocket secondary power supply the d. c. voltage signal of same amplitude, obtains voltage change signal.
As prioritization scheme, the model of AC-DC conversion chip is AD637SQ.
As prioritization scheme, switching value unit comprises silicon stack and the relay of series connection, and silicon stack carries out rectification to the ac supply signal of carrier rocket secondary power supply, and the ac supply signal after rectification is switched to relay, obtains switching value signal.
As prioritization scheme, PLC unit comprises analog input module, digital quantity input module and mixed-media network modules mixed-media, and analog input module is connected with mixed-media network modules mixed-media by CPU respectively with digital quantity input module; Wherein, analog input module is for receiver voltage variable signal, and digital quantity input module is for receiving key amount signal, and mixed-media network modules mixed-media is for sending to outside data processing equipment by the measurement data of acquisition.
As prioritization scheme, analog input module comprises an A/D conversion submodule, and A/D conversion submodule carries out circle collection to voltage change signal.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention has realized the detection to secondary power supply on arrow;
(2) realized and having detected secondary power supply voltage on arrow is omnidistance;
(3) improved the reliability of secondary AC power source ground interpretation on arrow.
Brief description of the drawings
Fig. 1 is the structured flowchart of measurement mechanism provided by the invention;
Fig. 2 is the circuit theory diagrams of AC-DC conversion unit;
Fig. 3 is the circuit theory diagrams of switching value unit;
Fig. 4 is the circuit theory diagrams of PLC unit.
In upper figure, sequence number is: 1-carrier rocket secondary power supply, 2-switching value unit, 3-AC-DC conversion unit, 4-PLC unit.
Embodiment
Describe the present invention below in conjunction with accompanying drawing in detail in the mode of embodiment.
Embodiment 1:
As shown in Figure 1, a kind of measurement mechanism of carrier rocket secondary power supply 1, comprises AC-DC conversion unit 3, switching value unit 2 and PLC unit 4; Wherein, AC-DC conversion unit 3 is connected with carrier rocket secondary power supply 1 respectively with switching value unit 2; AC-DC conversion unit 3 is for detection of the voltage change signal of carrier rocket secondary power supply 1, and voltage change signal is sent to PLC unit 4; Switching value unit 2 is for detection of the switching value signal of carrier rocket secondary power supply 1, and switching value signal is sent to PLC unit 4; PLC unit 4 is processed the voltage change signal receiving and switching value signal, obtains measurement data.
As shown in Figure 2, in the present embodiment, AC-DC conversion unit 3 comprises an AC-DC conversion chip, and the ac voltage signal of carrier rocket secondary power supply 1 is sent into this AC-DC conversion chip.This AC-DC conversion chip is converted to ac voltage signal the d. c. voltage signal output of same amplitude, and the d. c. voltage signal of output is previously described voltage change signal.As best embodiment, the model of AC-DC conversion chip is AD637SQ, but is not limited to this, can select suitable AC-DC conversion chip according to actual conditions.As shown in Figure 2, the AC signal (IN1, IN2) of outside input is delivered to AC-DC conversion chip AD637SQ and is changed after optocoupler ISO124 D3 isolation, obtains the same amplitude direct current signal (OUT, GND2) of output.Optocoupler two ends adopt 2 independent current source chip DCP012415DB and BOSHIDA 24DD15 to power respectively.
As shown in Figure 3, in the present embodiment, switching value unit 2 comprises silicon stack and the relay of series connection.The ac supply signal of carrier rocket secondary power supply 1 is sent in switching value unit 2, first by silicon stack U01, ac supply signal is carried out to rectification, power supply voltage signal engage relay K001 after rectification, after this relay K 001 contact action, PLC digital quantity input module 402 can obtain corresponding switching value signal.It is BH13201 that silicon stack is selected model, and it is the TQ-2 of Panasonic that relay is selected model, but is not limited to this, can select suitable silicon stack and relay according to actual conditions.
As shown in Figure 4, in the present embodiment, PLC unit 4 comprises analog input module 401, digital quantity input module 402 and mixed-media network modules mixed-media 404, and analog input module 401 is connected with mixed-media network modules mixed-media 404 by CPU 403 respectively with digital quantity input module 402; Wherein, analog input module 401 is for receiver voltage variable signal, and digital quantity input module 402 is for receiving key amount signal, and mixed-media network modules mixed-media 404 is for sending to outside data processing equipment by the measurement data of acquisition.Analog input module 401 comprises an A/D conversion submodule, and A/D conversion submodule carries out circle collection to voltage change signal.CPU 403, to processing from the signal of analog input module 401 and digital quantity input module 402, obtains measurement data, then measurement data is sent to outside data processing equipment in real time by mixed-media network modules mixed-media 404.It is Siemens SM431 that PLC analog input module 401 is selected model, the model that PLC digital quantity input module 402 is selected is Siemens SM421, it is CP412-1 that CPU 403 selects model, it is CP443-1 that mixed-media network modules mixed-media 404 is selected model, but be not limited to this, can select suitable PLC model according to actual conditions.
In actual applications, AC-DC conversion unit 3 is a board, and the each components and parts in AC-DC conversion unit 3 are all encapsulated in this board; Switching value unit 2 is also a board, and the each components and parts in switching value unit 2 are all encapsulated in this board.Above-mentioned two boards clamping is inserted on PLC unit 4, realizes and connecting.Outside data processing equipment can be all kinds of computing machines, can select according to actual needs.
The workflow of measurement mechanism provided by the invention and corresponding know-why are as follows:
First, the ac supply signal of tested carrier rocket secondary power supply 1 access in parallel switching value unit 2, the silicon stack in switching value unit 2 is by AC signal rectification, and the signal after rectification is switched to relay; After this actuating of relay, the digital quantity input module 402 in PLC unit 4 can receive switching value signal; This switching value signal is sent to outside data processing equipment by mixed-media network modules mixed-media 404 and shows after processing via CPU 403, can judge thus the switch situation of carrier rocket secondary power supply 1.
Meanwhile, the ac voltage signal of tested carrier rocket secondary power supply 1 is sent into alternating current-direct current and is turned unit 3, and alternating current-direct current turns AC-DC conversion chip AD637SQ in unit 3 ac voltage signal is converted to the d. c. voltage signal of same amplitude, i.e. voltage change signal; A/D conversion submodule in analog input module 401 carries out circle collection to this d. c. voltage signal, is converted to digital signal; This digital signal is sent to outside data processing equipment by mixed-media network modules mixed-media 404 and shows after processing via CPU 403, can be sentenced and be read out in the variation tendency that exchanges secondary power supply voltage in whole testing process by the curve showing.
Disclosed is above only the application's a specific embodiment, but the not limited thereto the changes that any person skilled in the art can think of of the application all should drop in the application's protection domain.
Claims (6)
1. a measurement mechanism for carrier rocket secondary power supply, is characterized in that, comprises AC-DC conversion unit, switching value unit and PLC unit; Wherein, described AC-DC conversion unit is connected with described carrier rocket secondary power supply respectively with described switching value unit; Described AC-DC conversion unit is for detection of the voltage change signal of described carrier rocket secondary power supply, and described voltage change signal is sent to described PLC unit; Described switching value unit is for detection of the switching value signal of described carrier rocket secondary power supply, and described switching value signal is sent to described PLC unit; Described PLC unit is processed the described voltage change signal receiving and described switching value signal, obtains measurement data.
2. the measurement mechanism of a kind of carrier rocket secondary power supply according to claim 1, it is characterized in that, described AC-DC conversion unit comprises an AC-DC conversion chip, described AC-DC conversion chip is converted to the ac voltage signal of described carrier rocket secondary power supply the d. c. voltage signal of same amplitude, obtains described voltage change signal.
3. the measurement mechanism of a kind of carrier rocket secondary power supply according to claim 2, is characterized in that, the model of described AC-DC conversion chip is AD637SQ.
4. the measurement mechanism of a kind of carrier rocket secondary power supply according to claim 1, it is characterized in that, described switching value unit comprises silicon stack and the relay of series connection, described silicon stack carries out rectification to the ac supply signal of described carrier rocket secondary power supply, ac supply signal after rectification is switched to described relay, obtains described switching value signal.
5. the measurement mechanism of a kind of carrier rocket secondary power supply according to claim 1, it is characterized in that, described PLC unit comprises analog input module, digital quantity input module and mixed-media network modules mixed-media, and described analog input module is connected with described mixed-media network modules mixed-media by CPU respectively with described digital quantity input module; Wherein, described analog input module is used for receiving described voltage change signal, and described digital quantity input module is used for receiving described switching value signal, and described mixed-media network modules mixed-media is for sending to outside data processing equipment by the measurement data of acquisition.
6. the measurement mechanism of a kind of carrier rocket secondary power supply according to claim 5, is characterized in that, described analog input module comprises an A/D conversion submodule, and described A/D conversion submodule carries out circle collection to described voltage change signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112146.5A CN103869262A (en) | 2014-03-24 | 2014-03-24 | Measurement device of launch vehicle secondary electric power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112146.5A CN103869262A (en) | 2014-03-24 | 2014-03-24 | Measurement device of launch vehicle secondary electric power supply |
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| CN103869262A true CN103869262A (en) | 2014-06-18 |
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| CN201410112146.5A Pending CN103869262A (en) | 2014-03-24 | 2014-03-24 | Measurement device of launch vehicle secondary electric power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698266A (en) * | 2015-04-03 | 2015-06-10 | 上海航天测控通信研究所 | Ground electrical power source parameter sampling equipment of carrier rocket |
| WO2022206646A1 (en) * | 2021-03-31 | 2022-10-06 | 维沃移动通信有限公司 | Power source chip testing circuit, power source chip testing method and apparatus, and electronic device |
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| CN201667535U (en) * | 2010-07-16 | 2010-12-08 | 重庆迅驰电气有限公司 | Electric power system line protection observe and control apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698266A (en) * | 2015-04-03 | 2015-06-10 | 上海航天测控通信研究所 | Ground electrical power source parameter sampling equipment of carrier rocket |
| WO2022206646A1 (en) * | 2021-03-31 | 2022-10-06 | 维沃移动通信有限公司 | Power source chip testing circuit, power source chip testing method and apparatus, and electronic device |
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Application publication date: 20140618 |