CN107132550B - Detection circuit and detection method applied to onboard satellite antenna - Google Patents
Detection circuit and detection method applied to onboard satellite antenna Download PDFInfo
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- CN107132550B CN107132550B CN201710486610.0A CN201710486610A CN107132550B CN 107132550 B CN107132550 B CN 107132550B CN 201710486610 A CN201710486610 A CN 201710486610A CN 107132550 B CN107132550 B CN 107132550B
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 230000004931 aggregating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2604—Test of external equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention relates to a detection circuit and a detection method applied to an airborne satellite antenna, wherein the detection circuit comprises a data conversion unit, a data detection and processing unit and a power supply detection unit, the data conversion unit is divided into an input 232 signal data conversion circuit and an output 422 signal data conversion circuit, RXD3 and TXD3 output ends of the 232 signal data conversion circuit are respectively connected with PJ0 and PJ1 input ends of the data detection and processing unit, PH0 and PH1 output ends of the data detection and processing unit are respectively connected with RXD2 and TXD2 input ends of the output 422 signal data conversion circuit, and a RESET end of the power supply detection unit is connected with PL6 of the data detection and processing unit through a data line.
Description
Technical Field
The present invention relates to an antenna detection circuit, and more particularly, to a detection circuit and a detection method for an airborne satellite antenna.
Technical Field
An aircraft skin has hundreds of functional electronic devices inside, such as: communication radar, communication radio station, all kinds of navigation equipment, take off equipment, landing equipment, time service equipment, equipment such as location. The Beidou and GPS positioning equipment can provide accurate positioning functions, speed measuring functions, time service functions, ephemeris functions, communication functions and the like for bombs and missiles under airplanes and wings. The receiving antenna is an indispensable part for ensuring the realization of the functions, so that the state of the antenna is detected in real time, and the timely discovery of the fault of the antenna is of great importance.
Disclosure of Invention
In view of the needs of practical technology, the invention provides a detection circuit and a detection method applied to an airborne satellite antenna, and the specific technical scheme is that the detection circuit applied to the airborne satellite antenna comprises a data conversion unit, a data detection and processing unit and a power supply detection unit, and is characterized in that: the data conversion unit is divided into an input 232 signal data conversion circuit and an output 422 signal data conversion circuit, RXD3 and TXD3 output ends of the data detection and processing unit input 232 signal data conversion circuit are respectively connected with PJ0 and PJ1 input ends of the data detection and processing unit, PH0 and PH1 output ends of the data detection and processing unit are respectively connected with RXD2 and TXD2 input ends of the output 422 signal data conversion circuit, and a RESET end of the power detection unit is connected with PL6 of the data detection and processing unit through a data line.
The detection method comprises the following steps of (1) initializing; (2) the data detection and processing unit receives the data transmitted by the data conversion unit and the power supply detection unit, judges whether the transmitted data is effective, receives the data if the transmitted data is effective, and gives up and waits for effective data if the transmitted data is ineffective; (3) the method comprises the steps of performing basic state judgment on received effective frame data, and dividing the received effective frame data into two types of anti-interference unit frame data and 0808 frame data consisting of a generated state mark; (4) the anti-interference unit frame data is subjected to frame identification and is divided into 6A6A frame data and 0808 frame data, and the 6A6A frame data buffer area and the 0808 frame data buffer area are respectively stored; (5) basic state judgment is carried out on other received effective data, such as antenna terminal faults, short circuits, open circuits, direct power supply and the like; (6) generating a new state mark by belonging to state data; (7) aggregating the state marks, namely aggregating the 6A6A frame data, the 0808 frame data, generating a new state mark and generating the state mark to form 0808 frame data, adding the 0808 frame data into a data frame structure, and generating aggregated 6A6A frame data and aggregated 0808 frame data; (8) transmitting aggregated 6A6A frame data and aggregated 0808 frame data; (9) if the power supply unit fails, after receiving the signal transmitted by the power supply unit, the power supply unit generates a power failure flag bit, and simultaneously sends a signal to the antenna processor to inform the processor to switch to the direct mode, so that the situation that the satellite antenna does not work is avoided.
The invention has the technical effects of receiving data information, processing the data information, judging the antenna state, judging the antenna processor state, judging the power supply state and the like, and has the characteristics of small size, low power consumption, adaptability to the environment of-55 ℃ to 70 ℃ and the like.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a circuit diagram of an input 232 signal data conversion circuit of the present invention;
FIG. 3 is a circuit diagram of an output 422 signal data conversion circuit of the present invention;
FIG. 4 is a circuit diagram of a data detection and processing unit of the present invention;
FIG. 5 is a power detection circuit diagram of the present invention;
fig. 6 is a flowchart of the operation of the present invention.
Detailed Description
As shown in fig. 1, 2, 3, 4 and 5, the device comprises a data conversion unit, a data detection and processing unit and a power supply detection unit, and is characterized in that: the data conversion unit is divided into an input 232 signal data conversion circuit and an output 422 signal data conversion circuit, RXD3 and TXD3 output ends of the data detection and processing unit input 232 signal data conversion circuit are respectively connected with PJ0 and PJ1 input ends of the data detection and processing unit, PH0 and PH1 output ends of the data detection and processing unit are respectively connected with RXD2 and TXD2 input ends of the output 422 signal data conversion circuit, and a RESET end of the power detection unit is connected with PL6 of the data detection and processing unit through a data line.
Working principle:
the data conversion unit is responsible for receiving and transmitting data and comprises a data receiving circuit and a data transmitting circuit, and is connected with the data detection and processing unit through the two-part circuit. The receiving end converts 232 signal data input from outside into TTL signals and transmits the TTL signals to the data detection and processing unit. The transmitting end converts the processed TTL signal data into 422 signal data and transmits the 422 signal data. The main control chip of the data detection and processing unit adopts an AVR series AVR1280-16U chip to realize the detection and processing of data. The method has the characteristics of small size, low power consumption, strong environmental adaptability (-55 ℃ to 70 ℃), and the like.
The two-part data conversion circuit realizes data exchange between the outside and the MCU, and between the MCU and the outside.
The power supply detection unit is used for mainly detecting the power supply state of the antenna and the power supply state of the antenna processor. The power supply unit detects 2 paths of power supplies in real time, any path of power supply does not work or fails, and immediately generates a state mark and transmits the state mark to the data detection and processing unit. The status flag is connected to the data detection and processing unit via a data line (network 28_detect) and communicates data. The power supply detection circuit realizes real-time monitoring of two paths of power supplies and transmits a real-time result to the MCU for state judgment.
The data detection and processing unit judges the data transferred by the conversion unit (judges whether the frame data is effective or not, receives the frame data if the frame data is effective or not, gives up and waits for the effective data if the frame data is ineffective), judges the basic state of the data after the frame data is received, synthesizes the state marks of real-time detection, including short circuit, open circuit, normal operation of a processor, normal operation of a power supply and the like, generates corresponding mark bits, adds the corresponding mark bits into a data frame structure, and sends the corresponding mark bits to the data conversion unit. If the power supply unit fails, after receiving the signal transmitted by the power supply unit, the power supply unit generates a power failure flag bit, and simultaneously sends a signal to the antenna processor to inform the processor to switch to the direct mode, so that the situation that the satellite antenna does not work is avoided.
Claims (2)
1. The utility model provides a be applied to detection circuitry of on-board satellite antenna, includes data conversion unit, data detection and processing unit, power detection unit, its characterized in that: the data conversion unit is divided into an input 232 signal data conversion circuit and an output 422 signal data conversion circuit, RXD3 and TXD3 output ends of the data detection and processing unit input 232 signal data conversion circuit are respectively connected with PJ0 and PJ1 input ends of the data detection and processing unit, PH0 and PH1 output ends of the data detection and processing unit are respectively connected with RXD2 and TXD2 input ends of the output 422 signal data conversion circuit, and a RESET end of the power detection unit is connected with PL6 of the data detection and processing unit through a data line.
2. A detection method using the detection circuit for an on-board satellite antenna according to claim 1, wherein: the detection method comprises the following steps of,
(1) initializing;
(2) the data detection and processing unit receives the data transmitted by the data conversion unit and the power supply detection unit, judges whether the transmitted data is effective, receives the data if the transmitted data is effective, and gives up and waits for effective data if the transmitted data is ineffective;
(3) the method comprises the steps of performing basic state judgment on received effective frame data, and dividing the received effective frame data into two types of anti-interference unit frame data and 0808 frame data consisting of a generated state mark;
(4) the anti-interference unit frame data is subjected to frame identification and is divided into 6A6A frame data and 0808 frame data, and the 6A6A frame data buffer area and the 0808 frame data buffer area are respectively stored;
(5) performing basic state judgment on other received effective data;
(6) generating a new state mark by belonging to state data;
(7) aggregating the state marks, namely aggregating 6A6A frame data, 0808 frame data, generating new state marks and generating state marks into 0808 frame data, and generating aggregated 6A6A frame data and aggregated 0808 frame data;
(8) transmitting aggregated 6A6A frame data and aggregated 0808 frame data;
(9) if the power supply unit fails, after receiving the signal transmitted by the power supply unit, the power supply unit generates a power failure flag bit, and simultaneously sends a signal to the antenna processor to inform the processor to switch to the direct mode, so that the situation that the satellite antenna does not work is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486610.0A CN107132550B (en) | 2017-06-23 | 2017-06-23 | Detection circuit and detection method applied to onboard satellite antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486610.0A CN107132550B (en) | 2017-06-23 | 2017-06-23 | Detection circuit and detection method applied to onboard satellite antenna |
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| Publication Number | Publication Date |
|---|---|
| CN107132550A CN107132550A (en) | 2017-09-05 |
| CN107132550B true CN107132550B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710486610.0A Active CN107132550B (en) | 2017-06-23 | 2017-06-23 | Detection circuit and detection method applied to onboard satellite antenna |
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| CN112835072A (en) * | 2021-03-16 | 2021-05-25 | 大连市共进科技有限公司 | Detection unit, satellite antenna in-place detection device and detection method |
Citations (6)
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|---|---|---|---|---|
| JPH08237273A (en) * | 1995-02-28 | 1996-09-13 | Ando Electric Co Ltd | Fault monitor device for atm line |
| JP2001304879A (en) * | 2000-04-27 | 2001-10-31 | Maspro Denkoh Corp | On-vehicle satellite tracking device and on-vehicle satellite receiving system |
| CN102305889A (en) * | 2011-07-18 | 2012-01-04 | 山东大学 | Dual mode 220v user side power grid phasor measuring and transmitting device and method |
| CN103019218A (en) * | 2012-12-26 | 2013-04-03 | 北京国铁路阳技术有限公司 | Railway signal device utilizing dual-CPU (central processing unit) redundancy and control method of railway signal device |
| CN203691403U (en) * | 2013-11-15 | 2014-07-02 | 四川安迪科技实业有限公司 | Beidou navigation maritime satellite communication terminal equipped with capacitive touch buttons |
| CN207096461U (en) * | 2017-06-23 | 2018-03-13 | 天津七六四通信导航技术有限公司 | A kind of detection circuit applied to onboard satellite antenna |
-
2017
- 2017-06-23 CN CN201710486610.0A patent/CN107132550B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08237273A (en) * | 1995-02-28 | 1996-09-13 | Ando Electric Co Ltd | Fault monitor device for atm line |
| JP2001304879A (en) * | 2000-04-27 | 2001-10-31 | Maspro Denkoh Corp | On-vehicle satellite tracking device and on-vehicle satellite receiving system |
| CN102305889A (en) * | 2011-07-18 | 2012-01-04 | 山东大学 | Dual mode 220v user side power grid phasor measuring and transmitting device and method |
| CN103019218A (en) * | 2012-12-26 | 2013-04-03 | 北京国铁路阳技术有限公司 | Railway signal device utilizing dual-CPU (central processing unit) redundancy and control method of railway signal device |
| CN203691403U (en) * | 2013-11-15 | 2014-07-02 | 四川安迪科技实业有限公司 | Beidou navigation maritime satellite communication terminal equipped with capacitive touch buttons |
| CN207096461U (en) * | 2017-06-23 | 2018-03-13 | 天津七六四通信导航技术有限公司 | A kind of detection circuit applied to onboard satellite antenna |
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| CN107132550A (en) | 2017-09-05 |
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