CN109186570B - Automatic setting device for working state of airborne radio compass - Google Patents
Automatic setting device for working state of airborne radio compass Download PDFInfo
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- CN109186570B CN109186570B CN201811097207.XA CN201811097207A CN109186570B CN 109186570 B CN109186570 B CN 109186570B CN 201811097207 A CN201811097207 A CN 201811097207A CN 109186570 B CN109186570 B CN 109186570B
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- signal
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- compass
- generating circuit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/28—Electromagnetic compasses
Abstract
The invention relates to an automatic setting device for the working state of an airborne radio compass, which comprises a signal connecting circuit, a frequency code switching circuit and a signal switching circuit, wherein a data selection chip selects manual or automatic frequency codes to be connected with the airborne radio compass, a relay is driven by a computer control port through the amplification effect of a current amplifier to complete the switching of corresponding circuit signals, and the access of a compass/antenna, the working frequency, a voice message, a motor, readjustment and automatic inspection signals of the airborne radio compass can be automatically set. The invention improves the automation degree and reliability of the detection equipment, solves the dilemma that the detection equipment is imported from foreign countries, and has higher economic value.
Description
Technical Field
The invention relates to the field of airborne equipment testing, in particular to an automatic setting device for the working state of an airborne radio compass.
Background
The airborne radio compass is an airborne short-range navigation device, and in the processes of regular maintenance, inspection before installation and fault detection, performance parameters of the airborne device need to be detected, namely manual detection and automatic detection. During automatic detection, the manual work is less, the detection precision is high, and the data reliability is high, so the machine can automatically set the working state, which is the premise of carrying out automatic test.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic setting device for the working state of an airborne radio compass, and solves the problems of low manual detection efficiency and complex operation.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides an automatic setting device of machine carries radio compass operating condition, includes signal connection circuit, frequency sign indicating number switching circuit, signal connection circuit is used for connecting automatic frequency sign indicating number and computer control signal, signal connection circuit connects in the frequency sign indicating number switching circuit of control switching manual frequency sign indicating number or automatic frequency sign indicating number, signal connection circuit connects in the signal switching circuit who carries out the selective test to certain signal of the same kind.
The signal connection circuit comprises a fourth socket using a DB37 interface and a first socket using a 40-pin socket, wherein the fourth socket is connected with a compass signal, an antenna signal, a reporting signal, an 18V signal, a detection signal, a motor signal, a readjustment signal and an automatic check signal, and the first socket is connected with a computer control end signal corresponding to the signals.
The frequency switching circuit adopts four same four-out-of-four data selectors with the type number of 74HC157, and comprises a first data selector, a second data selector, a third data selector and a fourth data selector;
the data input end A of the data selector inputs manual working frequency codes of the compass respectively, and the data input end B inputs automatic working frequency codes of the compass respectively;
and the data output end of the data selector outputs the selected frequency code to the receiver through the bus.
The signal switching circuit comprises an automatic compass antenna signal generating circuit, an automatic signal reporting generating circuit, an 18V signal generating circuit, an automatic detection signal generating circuit, a motor signal generating circuit, an automatic inspection signal generating circuit and an automatic readjusting signal generating circuit which generate corresponding automatic detection signals, and the signal switching circuit further comprises a manual automatic signal switching circuit which is used for switching connection of the automatic detection signals and the manual detection signals.
The automatic compass antenna signal generating circuit, the automatic signal reporting generating circuit, the 18V signal generating circuit, the automatic detection signal generating circuit, the motor signal generating circuit and the manual automatic signal switching circuit have the same circuit structure;
the automatic compass antenna signal generating circuit comprises a first buffer with the type 74HC07 for current amplification and a fifteenth relay adopting a double-pole double-throw relay, wherein the first buffer amplifies and drives a current to drive the fifteenth relay, and a pin 9 of the first buffer is connected to a pin 10 of the first socket and is used for receiving a computer control signal to control the line connection of an automatic compass signal and an automatic antenna signal.
The invention has the advantages of improving the automation degree and reliability of the detection equipment, solving the dilemma of import of the detection equipment from abroad and having higher economic value.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a signal connection circuit diagram of the present invention;
FIG. 2 is a circuit diagram of a frequency code switching circuit according to the present invention;
FIG. 3 is a signal switching circuit diagram according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
The operating frequency control code of the airborne radio compass is derived from two sources: one is sent from the preset box through the bus for manual detection; the other is computer generated for automatic detection. In different working states, the frequency code sent by the control source is switched to be used.
The invention provides an automatic setting device for the working state of an airborne radio compass, which comprises a signal connecting circuit 1, a frequency code switching circuit 2 and a signal switching circuit 3, wherein the signal connecting circuit 1 is used for connecting an automatic frequency code and a computer control signal, the signal connecting circuit 1 is connected with the frequency code switching circuit 2 for controlling and switching a manual frequency code or an automatic frequency code, and the signal connecting circuit 1 is connected with the signal switching circuit 3 for selectively testing a certain path of signal.
The signal connection circuit shown in fig. 1:
the signal connection circuit 1 comprises a fourth patch socket J4 using a DB37 interface and a first patch socket J1 using a 40-pin jack, the fourth socket J4 is connected with a compass signal L, an antenna signal T, a report signal B, an 18V signal, a detection signal C, a motor signal DJ, a readjustment signal CT and an automatic check signal ZJ, the pins 9-15 of the first socket J1 are respectively connected with control signals corresponding to the switching of the report signal B, the compass signal L and the antenna signal T, the motor signal DJ, the detection signals C, 18V, the readjustment signal CT and the automatic check signal ZJ, for controlling the corresponding lines to be connected to corresponding signals, pins 21-33 of the first patch socket J1 are correspondingly connected with signals of 14 paths including automatic frequency codes A-F1-A-F14, an automatic/manual selection signal is connected to the 16-pin of the first jack J1 for selecting a test mode.
The switching of the manual frequency code and the automatic frequency code of the radio compass is accomplished by means of the frequency code switching circuit 2.
The frequency code switching circuit diagram shown in fig. 2:
the frequency code switching circuit 2 comprises a seventh triode Q7, a first data selector U11, a second data selector U12, a third data selector U13 and a fourth data selector U14;
the base electrode of the seventh triode Q7 is connected with a 16-pin of the first socket J1 to receive the automatic/manual selection control signal, the emitter is grounded, and the collector is provided with a pull-up resistor to output an automatic control selection signal AUTO;
the data selector adopts a four-alternative data selector with the model 74HC157, 4 groups of two-alternative data selection circuits can be controlled through an enabling end and a selecting end, and the 4 data selectors have 16-channel two-alternative data selection channels in total, wherein the channel A is connected with automatic frequency codes A-F1 to A-F14, and the channel B is connected with manual frequency codes M-F1 to M-F14;
the pins 1 of the first data selector U11, the second data selector U12, the third data selector U13 and the fourth data selector U14 are data selection end grounded, the pin 15 is an enable pin connected to the automatic control selection signal AUTO to realize gating of the data selectors, when the automatic/manual selection control signal is enabled at high level, the automatic control selection signal AUTO is at low level to enable the data selectors, the data selection channel a is opened, and the automatic frequency codes a-F1 to a-F14 are selected to correspond to the output signals F1 to F14 to be connected to the receiver through the bus for processing.
The signal switching circuit diagram shown in fig. 3:
the test signal comprises a compass signal L, an antenna signal T, a pilot signal B, an 18V signal, a detection signal C, a motor signal DJ, a retuning signal CT and an automatic inspection signal ZJ, the signal switching circuit 3 comprises an automatic compass antenna signal generating circuit 31, an automatic pilot signal generating circuit 32, an 18V signal generating circuit 33, an automatic detection signal generating circuit 34, a motor signal generating circuit 35, an automatic inspection signal generating circuit 36, an automatic retuning signal generating circuit 37 and a manual automatic signal switching circuit 38, wherein the automatic compass antenna signal generating circuit 31, the automatic pilot signal generating circuit 32, the 18V signal generating circuit 33, the automatic detection signal generating circuit 34, the motor signal generating circuit 35 and the manual automatic signal switching circuit 38 have the same circuit structure.
The automatic compass antenna signal generation circuit 31 is selected below to explain the signal generation and switching principle:
the automatic compass antenna signal generating circuit 31 comprises a first buffer U4D with the model 74HC07 for current amplification and a fifteenth relay RL15 adopting a double-pole double-throw relay, wherein the first buffer U4D amplifies driving current to drive the fifteenth relay RL15 due to weak driving capability of a control signal generated by a computer, and a pin 9 of the first buffer U4D is connected to a pin 10 of the first patch socket J1 and is used for controlling the line connection of automatic compass signals A-L and automatic antenna signals A-T;
the manual automatic signal switching circuit 38 comprises a second buffer U3E and an eleventh relay RL11, when the automatic control selection signal AUTO is enabled, the eleventh relay RL11 is driven by the current amplification effect of the second buffer U3E to select the manual compass signal M-L/manual antenna signal M-T or automatic compass signal A-L/automatic antenna signal A-T to be connected to an onboard radio compass for testing;
similarly, the alarm signal B, the 18V signal, the detection signal C and the motor signal DJ respectively complete the generation of the automatic test signal and the selective input of the manual automatic test signal by the automatic signal generation circuit and the manual automatic signal switching circuit in the same way;
in addition, the automatic reset signal generating circuit 37 comprises a first monostable flip-flop U12A, wherein resistance-capacitance elements are connected to pins 14, 15, 2 and 3 of the first monostable flip-flop U12A for adjusting the monostable trigger level maintenance time, pin 1 of the first monostable flip-flop U12A is connected to pin 14 of the first patch socket J1 for receiving a reset signal control signal, and pin 13 of the first monostable flip-flop U12A outputs a reset signal a-CT;
the automatic check signal generating circuit 36 includes a third buffer U4C, the 5 pin of the third buffer U4C is connected to the 15 pin of the first patch socket J1, and the 6 pin of the third buffer U4C outputs an automatic check signal.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an airborne radio compass operating condition automatic setting device which characterized in that: the device comprises a signal connection circuit (1), a frequency code switching circuit (2) and a signal switching circuit (3), wherein the signal connection circuit (1) is used for connecting an automatic frequency code and a computer control signal, the signal connection circuit (1) is connected with the frequency code switching circuit (2) for controlling and switching a manual frequency code or an automatic frequency code, and the signal connection circuit (1) is connected with the signal switching circuit (3) for selectively testing a certain path of signal;
the signal connection circuit (1) comprises a fourth socket using a DB37 interface and a first socket using a 40-pin socket, wherein the fourth socket is connected with a compass signal, an antenna signal, a report signal, an 18V signal, a detection signal, a motor signal, a readjustment signal and an automatic check signal, and the first socket is connected with a computer control end signal corresponding to the signals;
the frequency switching circuit (2) adopts four same four-out-of-four data selectors with the type being 74HC157, and comprises a first data selector, a second data selector, a third data selector and a fourth data selector;
the data input end A of the data selector inputs manual working frequency codes of the compass respectively, and the data input end B inputs automatic working frequency codes of the compass respectively;
the data output end of the data selector outputs the selected frequency code to the receiver through the bus;
the signal switching circuit (3) comprises an automatic compass antenna signal generating circuit (31), an automatic signal reporting generating circuit (32), an 18V signal generating circuit (33), an automatic detection signal generating circuit (34), a motor signal generating circuit (35), an automatic inspection signal generating circuit (36) and an automatic readjustment signal generating circuit (37) which generate corresponding automatic detection signals, and the signal switching circuit (3) further comprises a manual automatic signal switching circuit (38) which is used for switching connection of the automatic detection signals and the manual detection signals.
2. The automatic setting device of the operating state of the airborne radio compass according to claim 1, characterized in that: the automatic compass antenna signal generating circuit (31), the automatic signal reporting generating circuit (32), the 18V signal generating circuit (33), the automatic detection signal generating circuit (34), the motor signal generating circuit (35) and the manual automatic signal switching circuit (38) have the same circuit structure;
the automatic compass antenna signal generating circuit (31) comprises a first buffer with the type 74HC07 for current amplification and a fifteenth relay adopting a double-pole double-throw relay, wherein the first buffer amplifies driving current to drive the fifteenth relay, and a pin 9 of the first buffer is connected to a pin 10 of the first socket and is used for receiving computer control signals to control the line connection of automatic compass signals and automatic antenna signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097207.XA CN109186570B (en) | 2018-09-20 | 2018-09-20 | Automatic setting device for working state of airborne radio compass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097207.XA CN109186570B (en) | 2018-09-20 | 2018-09-20 | Automatic setting device for working state of airborne radio compass |
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| Publication Number | Publication Date |
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| CN109186570A CN109186570A (en) | 2019-01-11 |
| CN109186570B true CN109186570B (en) | 2021-03-23 |
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| CN201811097207.XA Active CN109186570B (en) | 2018-09-20 | 2018-09-20 | Automatic setting device for working state of airborne radio compass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109186570B (en) * | 2018-09-20 | 2021-03-23 | 国营芜湖机械厂 | Automatic setting device for working state of airborne radio compass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898548A (en) * | 2015-06-11 | 2015-09-09 | 陈奕铭 | Test instrument switching device |
| CN108253952A (en) * | 2017-12-01 | 2018-07-06 | 北京时代民芯科技有限公司 | A kind of zero bias self calibration MEMS gyroscope and its zero bias method for self-calibrating |
| CN108333567A (en) * | 2018-05-09 | 2018-07-27 | 中国电子科技集团公司第三十八研究所 | A kind of digital array module interactive mode detection device and detection method |
| CN109186570A (en) * | 2018-09-20 | 2019-01-11 | 国营芜湖机械厂 | Device is arranged in a kind of airborne radio direction finder working condition automatically |
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- 2018-09-20 CN CN201811097207.XA patent/CN109186570B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898548A (en) * | 2015-06-11 | 2015-09-09 | 陈奕铭 | Test instrument switching device |
| CN108253952A (en) * | 2017-12-01 | 2018-07-06 | 北京时代民芯科技有限公司 | A kind of zero bias self calibration MEMS gyroscope and its zero bias method for self-calibrating |
| CN108333567A (en) * | 2018-05-09 | 2018-07-27 | 中国电子科技集团公司第三十八研究所 | A kind of digital array module interactive mode detection device and detection method |
| CN109186570A (en) * | 2018-09-20 | 2019-01-11 | 国营芜湖机械厂 | Device is arranged in a kind of airborne radio direction finder working condition automatically |
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