CN203014825U - PCM interface test device - Google Patents
PCM interface test device Download PDFInfo
- Publication number
- CN203014825U CN203014825U CN2012206550656U CN201220655065U CN203014825U CN 203014825 U CN203014825 U CN 203014825U CN 2012206550656 U CN2012206550656 U CN 2012206550656U CN 201220655065 U CN201220655065 U CN 201220655065U CN 203014825 U CN203014825 U CN 203014825U
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Abstract
The utility model discloses a PCM interface test device. The PCM interface test device includes a telemetering PCM channel device, a remote control PCM channel device and a PCM channel host machine; the telemetering PCM channel device is connected with a satellite and receives PCM-system telemetering signals outputted by the satellite, and outputs the telemetering signals to a telemetering signal input port of the PCM channel host machine; and the remote control PCM channel device receives remote control commands outputted by the PCM channel host machine through a bus network, and outputs the PCM-system remote control commands to a remote control command input port of the satellite. With the PCM interface test device adopted, testing performed on satellite PCM interfaces can be realized.
Description
Technical field
The utility model relates to a kind of pcm interface testing equipment.
Background technology
On general communication satellite star, the interface signal of answering machine and center remote measurement and centralized telecontrol is psk signal, when therefore carrying out wired test on ground, the psk signal that ground checkout equipment needs the analog answer machine to send or receive is so developed accordingly remote measurement, remote control PSK video channel equipment.This equipment mainly is comprised of coupling isolated location, vision signal switch matrix and control impuls output unit, and the coupling, isolation and the passage that are used between the star earth signal switch.This equipment can satisfy the demand of analog answer machine test, but the interface signal of new satellite model telemetry and telecommand is the PCM signal, if want to verify the pcm interface of telemetry and telecommand, existing PSK video channel equipment just can not satisfy testing requirement.
The utility model content
Technology of the present utility model is dealt with problems and is: for the deficiencies in the prior art, provide a kind of pcm interface testing equipment, realized the test to the satellite pcm interface.
The disclosed pcm interface testing equipment of the utility model, comprise remote measurement PCM channel unit, remote control PCM channel unit and PCM passage main frame, described remote measurement PCM channel unit is connected with satellite, receive the PCM system telemetered signal of satellite output, and described telemetered signal is outputed to the telemetered signal input port of PCM passage main frame; Described remote control PCM channel unit receives the guidance command of described PCM passage main frame output by bus network, and the guidance command of PCM system is outputed to the guidance command delivery outlet of satellite.
Further, in above-mentioned pcm interface testing equipment, described remote measurement PCM channel unit comprises two-way remote measurement PCM demodulation passage and one tunnel remote measurement self-test passage, the input of described two-way remote measurement PCM demodulation passage is connected with two telemetry delivery outlets of satellite respectively, and described self-test receive path is connected with remote control PCM channel unit.
Further, in above-mentioned pcm interface testing equipment, described remote control PCM channel unit comprises two-way remote-control channel and one tunnel remote control self-test passage, the output of described two-way remote-control channel is connected with the remote control PCM instruction input port of satellite respectively, and described remote control self-test passage is connected with remote measurement PCM channel unit.
Further, in above-mentioned pcm interface testing equipment, also comprise supervisory control comuter, described supervisory control comuter is used for receiving described telemetered signal and described guidance command.
The utility model compared with prior art has following advantage:
Compared with prior art, remote measurement PCM channel unit, remote control PCM channel unit can be respectively used to come from the telemetered signal that receives the PCM system and remote signal from the PCM system to satellite that export, thereby realized the coupling with the satellite pcm interface, and can by receiving and send telemetered signal and the remote signal of PCM system, realize the test to the satellite pcm interface.
Further, in remote measurement PCM channel unit, have two-way remote measurement PCM demodulation passage and one tunnel remote measurement self-test passage, in remote control PCM channel unit, have two-way remote-control channel and one tunnel remote control self-test passage.Can realize more comprehensively test to the pcm interface of satellite by two-way remote measurement PCM demodulation passage and two-way remote-control channel, and can realize self-test to this pcm interface testing equipment by remote measurement self-test passage and remote control self-test passage.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Embodiment
Below just by reference to the accompanying drawings the utility model is described further.
As shown in Figure 1, PCM passage special test equipment is comprised of remote measurement PCM channel unit, remote control PCM channel unit, PCM passage main frame.
Remote measurement PCM channel unit is completed isolation and the shunt of descending remote measurement pcm stream, clock CLK signal and ground installation, and be the LVTTL level with the CMOS level conversion, complete the frame synchronization demodulation output of two-way remote measurement PCM signal between star ground, by bus, data are given the telemetered signal input port of observing and controlling PCM passage main frame.
Remote control PCM channel unit is completed isolation and shunt and the level conversion of up remote control PCM signal and on-board equipment, output two-way LOCK signal receives the data that observing and controlling PCM passage main frame sends and guidance command from the PCM system to the guidance command delivery outlet of satellite that export by bus mode.
Further, in the utility model embodiment, described remote measurement PCM channel unit comprises two-way remote measurement PCM demodulation passage and one tunnel remote measurement self-test passage, the input of described two-way remote measurement PCM demodulation passage is connected with two telemetry delivery outlets of satellite respectively, two-way remote measurement PCM demodulation passage is independent on hardware, interface has adopted quarantine measures, guarantees safety.Described self-test receive path is connected with the guidance command delivery outlet of remote control PCM channel unit.
According to above-mentioned connection, two kinds of alternative modes of this self-test receive path, can receive the telemetry frame under the first pattern, be mainly used in the self check of remote measurement PCM demodulation channel module, whether the function that the test remote measurement receives is normal, can receive the remote-control data frame under the second pattern, can be used on the one hand the self-test of test remote control PCM modulation module, can receive the remote control command that remote control PCM channel unit sends and the transmission situation of feedback remote control command on the other hand when work.
Described remote control PCM channel unit comprises two-way remote-control channel and one tunnel remote control self-test passage, the output of two-way remote-control channel is connected with the remote control PCM instruction input port of satellite respectively, the two-way remote-control channel can produce respectively two groups of PCM guidance commands and clock, and after isolating along separate routes, with CMOS level formal output, input as satellite remote control PCM.
Remote control self-test passage is connected with remote measurement PCM channel unit.
Remote control self-test passage is with LVTTL level formal output, remote control self-test passage has two kinds of mode of operations, the first is to forward the remote-control data pattern, and the self-test passage will forward the data of remote control sendaisle under this pattern, complete the closed loop self-test of remote control sending function.The second is to send the telemetry pattern, under this pattern, and the telemetry frame that self-test sendaisle transmission form and parameter can be established, the function that can test at this moment remote measurement PCM channel unit.
In above-mentioned remote measurement PCM channel unit, the satellite PCM system telemetered signal of input is at first by after buffer, level shifting circuit, drive circuit, isolate to drive optocoupler, signal after isolation input FPGA completes along separate routes in FPGA inside, the remote measurement PCM signal after along separate routes, one road FPGA is used for completing the work such as frame synchronization, two-way is exported from FPGA in addition, along separate routes the PCM signal of output by light-coupled isolation after, then export improve the quality of signal by drive circuit after.
In above-mentioned remote control PCM channel unit, at first use buffer to carry out shaping to the guidance command of the PCM system of input, guidance command after shaping directly accesses FPGA, the outside input of the inner program-controlled choice for use of FPGA or use internal data,, become two-way output after the inner shunt of FPGA, the signal of output is at first by light-coupled isolation, through become the CMOS level of requirement after light-coupled isolation by level conversion, by exporting after different interfaces.
Further comprise supervisory control comuter in above-mentioned PCM passage special test equipment, this supervisory control comuter adopts and grinds magnificent CPCI direct current industrial computer, and this supervisory control comuter is used for receiving telemetered signal and guidance command, and telemetered signal and remote control command are monitored.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. pcm interface testing equipment, it is characterized in that: comprise remote measurement PCM channel unit, remote control PCM channel unit and PCM passage main frame, described remote measurement PCM channel unit is connected with satellite, receive the PCM system telemetered signal of satellite output, and described telemetered signal is outputed to the telemetered signal input port of PCM passage main frame; Described remote control PCM channel unit receives the guidance command of described PCM passage main frame output by bus network, and the guidance command of PCM system is outputed to the guidance command delivery outlet of satellite.
2. pcm interface testing equipment as claimed in claim 1, it is characterized in that: described remote measurement PCM channel unit comprises two-way remote measurement PCM demodulation passage and one tunnel remote measurement self-test passage, the input of described two-way remote measurement PCM demodulation passage is connected with two telemetry delivery outlets of satellite respectively, and described self-test receive path is connected with remote control PCM channel unit.
3. pcm interface testing equipment as claimed in claim 1, it is characterized in that: described remote control PCM channel unit comprises two-way remote-control channel and one tunnel remote control self-test passage, the output of described two-way remote-control channel is connected with the remote control PCM instruction input port of satellite respectively, and described remote control self-test passage is connected with remote measurement PCM channel unit.
4. pcm interface testing equipment as claimed in claim 1 is characterized in that: also comprise supervisory control comuter, described supervisory control comuter is used for receiving described telemetered signal and described guidance command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206550656U CN203014825U (en) | 2012-11-30 | 2012-11-30 | PCM interface test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206550656U CN203014825U (en) | 2012-11-30 | 2012-11-30 | PCM interface test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014825U true CN203014825U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206550656U Expired - Lifetime CN203014825U (en) | 2012-11-30 | 2012-11-30 | PCM interface test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203014825U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452613A (en) * | 2016-11-30 | 2017-02-22 | 贵州航天林泉电机有限公司 | Internal transmitter PCM (pulse code modulation) signal test system |
| CN108923844A (en) * | 2018-08-28 | 2018-11-30 | 北京飞宇卓达科技有限公司 | Synthetical baseband equipment for Satellite TT |
| CN111161524A (en) * | 2019-12-11 | 2020-05-15 | 北京东方计量测试研究所 | Testing device |
| CN111857087A (en) * | 2019-04-30 | 2020-10-30 | 中国空间技术研究院 | Configurable remote control and remote measurement simulator with monitoring function and control test method |
-
2012
- 2012-11-30 CN CN2012206550656U patent/CN203014825U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452613A (en) * | 2016-11-30 | 2017-02-22 | 贵州航天林泉电机有限公司 | Internal transmitter PCM (pulse code modulation) signal test system |
| CN108923844A (en) * | 2018-08-28 | 2018-11-30 | 北京飞宇卓达科技有限公司 | Synthetical baseband equipment for Satellite TT |
| CN108923844B (en) * | 2018-08-28 | 2023-09-22 | 北京飞宇卓达科技有限公司 | Comprehensive baseband equipment for satellite measurement and control |
| CN111857087A (en) * | 2019-04-30 | 2020-10-30 | 中国空间技术研究院 | Configurable remote control and remote measurement simulator with monitoring function and control test method |
| CN111857087B (en) * | 2019-04-30 | 2021-10-01 | 中国空间技术研究院 | Configurable remote control and remote measurement simulator with monitoring function and control test method |
| CN111161524A (en) * | 2019-12-11 | 2020-05-15 | 北京东方计量测试研究所 | Testing device |
| CN111161524B (en) * | 2019-12-11 | 2022-03-04 | 北京东方计量测试研究所 | Testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |