CN205049729U - Aircraft monitoring direction -finding system - Google Patents
Aircraft monitoring direction -finding system Download PDFInfo
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- CN205049729U CN205049729U CN201520824255.XU CN201520824255U CN205049729U CN 205049729 U CN205049729 U CN 205049729U CN 201520824255 U CN201520824255 U CN 201520824255U CN 205049729 U CN205049729 U CN 205049729U
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Abstract
The utility model discloses an aircraft monitoring direction -finding system, include direction -finding equipment and be used for articulating the device that articulates on the aircraft with direction -finding equipment, direction -finding equipment include that electron compass, direction -finder antenna, receiver, X86 handle board, WIFI module and WIFI omnidirectional antenna, electron compass's output and X86 handle the board and be connected, the output of direction -finder antenna be connected with the receiver, the receiver is handled the board with X86 and is connected, X86 processing board is connected with the WIFI module, wireless communication is carried out through the direction -finding monitor terminal on WIFI omnidirectional antenna and ground to the WIFI module. The utility model provides an aircraft monitoring direction -finding system adopts electron compass to carry out the orientation, and intactly carry out data acquisition, receipt and processing to data after will handling are passed through wireless communication and are transmitted the direction -finding monitor terminal for ground, effectively guarantee data transmission's real -time.
Description
Technical field
The utility model relates to a kind of aircraft monitoring and direction finding system.
Background technology
The extensive utilization of radio magnetic wave in productive life, radio direction finding (RDF) technology also grows up thereupon, and radio direction finding (RDF) is according to propagation properties, uses instrument and equipment to measure the process of radiowave arrival bearing; Measure " arrival bearing ", refer to the direction that in the electromagnetic environment that direction-finder set location is tangible, electric wave reaches, radio direction finding (RDF), common final purpose will determine in " direction of radiation source " and " particular location of radiation source ".
If carry out electromagnetic wave direction finding on ground, due to landform reason, weak effect, degree of accuracy is low, and current radio direction finding (RDF) technology, to Aerial Direction Finding development, namely uses aircraft to carry and carries out direction finding;
But, all going back imperfection at technical elements such as equipment lift-launch and signal transacting at present.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of aircraft monitoring and direction finding system direction-finding system, adopts electronic compass to carry out orientation; And intactly carry out data acquisition, reception and process, and by the data after process by wireless communication transmission to the direction finding monitoring terminal on ground, effectively ensure the real-time of data transmission.
The purpose of this utility model is achieved through the following technical solutions: a kind of aircraft monitoring and direction finding system, comprises direction-finding equipment and for direction-finding equipment is mounted on carry-on hanging device; Described direction-finding equipment comprises electronic compass, direction-finder antenna, receiver, X86 disposable plates, WIFI module and WIFI omnidirectional antenna; The output terminal of described electronic compass is connected with X86 disposable plates, and the output terminal of described direction-finder antenna is connected with receiver, and receiver is connected with X86 disposable plates, and X86 disposable plates is connected with WIFI module; WIFI module carries out wireless telecommunications by the direction finding monitoring terminal on WIFI omnidirectional antenna and ground.
Described direction-finding equipment also comprises battery and power management plate; Described battery is connected with power management plate, and the output terminal of power management plate is connected with electronic compass, direction-finder antenna, receiver, X86 disposable plates and WIFI module respectively.
Be provided with radiator structure bottom described power management plate, and power management plate comprises electric power management circuit.
Described electronic compass is XW-EC1730.
Described direction-finder antenna is little point of articulation antenna.
Described receiver is digital receiver, comprises low noise amplifier, frequency mixer, local oscillator driving amplifier, low-pass filter, A/D convertor circuit; Described low noise amplifier receives and is connected with the first input end of frequency mixer from the radiofrequency signal of direction-finder antenna, the output terminal of low noise amplifier; Second input end of frequency mixer is connected with the output terminal of local oscillator driving amplifier; The output terminal of frequency mixer is connected with low-pass filter and A/D convertor circuit successively, and the output terminal of A/D convertor circuit is connected with X86 disposable plates;
Described receiver also comprises local oscillation signal generator and T-shaped resistance decrement network, and the output terminal of described local oscillation signal generator is connected with local oscillator driving amplifier by T-shaped resistance decrement network.
Described X86 disposable plates comprises central processing unit, storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface; Central processing unit is connected with storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface respectively; Described central processing unit is also connected with the digital receiver of X86 plate outside and WIFI module respectively;
Described mu balanced circuit comprises voltage input end, voltage output end and multiple voltage stabilizing diode, and described voltage input end is connected to outside power management plate, and described voltage output end is connected with central processing unit; Described multiple voltage stabilizing diodes are connected in parallel between voltage input end and voltage output end;
Described voltage stabilizing diode is transient voltage suppressor diode TVS.
Described X86 plate is also provided with Ethernet interface, and described Ethernet interface is connected with central processing unit.
Described hanging device comprises interconnective lower cover and upper cover; The both sides of described lower cover are provided with one or morely is convenient to the hanging scroll of carry on unmanned plane, and the side of described lower cover also distributes and is provided with power interface, WiFi antenna terminal and network interface;
The antenna that the bottom of described lower cover is also provided with for connecting antenna is fixedly connected with port, and described antenna is fixedly connected with port and is fixedly connected with antenna connection;
Described antenna is fixedly connected with port and is connected with antenna by antenna connection, one end of described antenna connection is fixedly connected with port match by fixed head and antenna and is connected, the described antenna connection other end is provided with antenna docking port, described antenna docking port starts there is locating slot, in described antenna docking port, is provided with antenna electrical interface.
Described little point of articulation antenna comprises t-antenna stay pipe, first day linear oscillator and the second antenna oscillator, the two ends of the horizontal part of t-antenna stay pipe are respectively equipped with the first antenna connecting seat and the second antenna connecting seat, first day linear oscillator is connected with the first antenna connecting seat, and the second antenna oscillator is connected with the second antenna connecting seat;
The first printed board antenna is provided with in described first day linear oscillator, the second printed board antenna is provided with in second antenna oscillator, be provided with combiner in the vertical portion of t-antenna stay pipe, the output terminal of the first printed board antenna is connected with the input end of combiner with the output terminal of the second printed board antenna;
Described first printed board antenna formal dress, the second printed board antenna is counter to be filled;
Described first antenna connecting seat outer wall is provided with at least one first boss, second antenna connecting seat outer wall is provided with at least one second boss, first day linear oscillator is provided with at least one first fastening device, second antenna oscillator is provided with at least one second fastening device, first fastening device snaps onto on the first boss, and the second fastening device snaps onto on the second boss.
The beneficial effects of the utility model are: (1) adopts electronic compass to carry out orientation, ensures the validity of navigation orientation information; And intactly can carry out data acquisition, reception and process, by the data after process by wireless communication transmission to the direction finding monitoring terminal on ground, effectively ensure the real-time of data transmission.
(2) be provided with power management plate, battery provides power supply by power management plate to consumer, effectively can ensure Electrical Safety.
(3) X86 disposable plates is provided with mu balanced circuit, can ensure the steady operation for the treatment of circuit plate.
(4) hanging device both sides are by hanging scroll and the carry part that is arranged on unmanned plane, and carry, on unmanned plane, is connected with interferometer direction finding antenna by antenna connection bottom it, thus rapid-assembling becomes lift-off interferometer direction finding equipment.
(5) little point of articulation antenna comprises the first printed board antenna and the second printed board antenna, the first printed board antenna formal dress, and the second printed board antenna is counter to be filled, and improves signal receiving performance and adaptive capacity to environment; And adopt the mode of snapping to connect between each parts of little point of articulation antenna, assembling and convenient disassembly, when needs carry out long-distance transportation, can dismantle as multiple parts, reduces the space taken in transportation.
Accompanying drawing explanation
Fig. 1 is direction-finding equipment catenation principle block diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of receiver;
Fig. 3 is the schematic block circuit diagram of X86 disposable plates;
Fig. 4 is mu balanced circuit schematic diagram in X86 disposable plates;
Fig. 5 is the front view of hanging device;
Fig. 6 is the side view of hanging device;
Fig. 7 is hanging scroll structural representation;
Fig. 8 is the structural representation of carry part;
Fig. 9 is the upward view of hanging device;
Figure 10 is the lower cover polycrystalline substance schematic diagram of hanging device;
Figure 11 is the structural representation of little point of articulation antenna;
In figure, 1-lower cover, 2-upper cover, 3-hanging scroll, 301-first locating part, 302-second locating part, 303-axis body, 4-carry part, 401-groove, 402-carry web joint, 5-antenna connection, 501-fixed head, 502-antenna docking port, 503-locating slot, 504-radio frequency interface, 505-control interface, 6-heat abstractor, 7-power interface, 8-WiFi antenna terminal, 9-switch, 10-pilot lamp, wall joint is worn in the input of 11-radio frequency, 12-antenna exports and wears wall joint, 13-network interface, 14-reinforcement, 15-T type antenna mounting pipe, 16-first day linear oscillator, 17-second antenna oscillator, 18-first antenna connecting seat, 19-second antenna connecting seat, 20-first boss, 21-second boss, 22-the 3rd boss, 23-torsion spring, 24-buckle.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of aircraft monitoring and direction finding system, comprises direction-finding equipment and for direction-finding equipment is mounted on carry-on hanging device; Described direction-finding equipment comprises electronic compass, direction-finder antenna, receiver, X86 disposable plates, WIFI module and WIFI omnidirectional antenna; The output terminal of described electronic compass is connected with X86 disposable plates, and the output terminal of described direction-finder antenna is connected with receiver, and receiver is connected with X86 disposable plates, and X86 disposable plates is connected with WIFI module; WIFI module carries out wireless telecommunications by the direction finding monitoring terminal on WIFI omnidirectional antenna and ground.
Described direction-finding equipment also comprises battery and power management plate; Described battery is connected with power management plate, and the output terminal of power management plate is connected with electronic compass, direction-finder antenna, receiver, X86 disposable plates and WIFI module respectively.
Be provided with radiator structure bottom described power management plate, and power management plate comprises electric power management circuit.
Described direction-finder antenna is little point of articulation antenna.
As shown in Figure 2, described receiver is digital receiver, comprises low noise amplifier, frequency mixer, local oscillator driving amplifier, low-pass filter, A/D convertor circuit; Described low noise amplifier receives and is connected with the first input end of frequency mixer from the radiofrequency signal of direction-finder antenna, the output terminal of low noise amplifier; Second input end of frequency mixer is connected with the output terminal of local oscillator driving amplifier; The output terminal of frequency mixer is connected with low-pass filter and A/D convertor circuit successively, and the output terminal of A/D convertor circuit is connected with X86 disposable plates;
Described receiver also comprises local oscillation signal generator and T-shaped resistance decrement network, and the output terminal of described local oscillation signal generator is connected with local oscillator driving amplifier by T-shaped resistance decrement network.
As shown in Figure 3, described X86 disposable plates comprises central processing unit, storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface; Central processing unit is connected with storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface respectively; Described central processing unit is also connected with the digital receiver of X86 plate outside and WIFI module respectively;
As shown in Figure 4, described mu balanced circuit comprises voltage input end, voltage output end and multiple voltage stabilizing diode, and described voltage input end is connected to outside power management plate, and described voltage output end is connected with central processing unit; Described multiple voltage stabilizing diodes are connected in parallel between voltage input end and voltage output end;
Described voltage stabilizing diode is transient voltage suppressor diode TVS.
As shown in Figure 5, a kind of carry formula monitoring and direction-finding platform, it comprises interconnective lower cover 1 and upper cover 2, the both sides of described lower cover 1 are provided with one or morely is convenient to the hanging scroll 3 of carry on unmanned plane, and the side of described lower cover 1 also distributes and is provided with power interface 7, WiFi antenna terminal 8 and network interface 13.The side of described lower cover 1 is also provided with that wall joint 11 is worn in radio frequency input, antenna exports and wears wall joint 12, switch 9 and pilot lamp 10.
Wherein, in order to reduce volume of the present utility model, and then alleviating weight of the present utility model, network interface 13 can be worn wall joint 11 and antenna with power interface 7, WiFi antenna terminal 8, switch 9, pilot lamp 10, radio frequency input and export and wear wall joint 12 and oppose and distribute.As shown in Figure 6, a middle side part of lower cover 1 arranges network interface 13.The opposite side of lower cover 1 only has from a left side and distributes that wall joint 11 is worn in radio frequency input, antenna exports and wears wall joint 12, WiFi antenna terminal 8, power interface 7, switch 9 and pilot lamp 10 successively.
As shown in Figure 7, further, described hanging scroll 3 comprises the first locating part 301, second locating part 302 and axis body 303, described axis body 303 is connected with the first locating part 301 through the second locating part 302, and the axial line of the first locating part 301, second locating part 302 and axis body 303 is same axial line, the axis body 303 between described first locating part 301 and the second locating part 302 is formed is convenient to the carry portion 304 of carry on unmanned plane.
As shown in Figure 8, further, described hanging scroll 3 is connected with unmanned plane by carry part 4, one end of described carry part 4 offers the groove 401 of bending, one end of described groove 401 is openend, the other end of described groove 401 is carry end, and described carry portion 304 slips into carry end by openend, completes carry action.The other end of described carry part 4 is provided with the carry web joint 402 for being fixedly connected with unmanned plane.
The groove 401 of described bending is as 7 font grooves, comprise at least two direct through groove be communicated with, form at least one kink, groove 401 shown in Fig. 3 is connected to form by three direct through groove, and has two kinks, the utility model restriction direct through groove and do not adopt the object of arc-shaped slot to be, the stability of further lifting carry and reliability, avoid lift-off interferometer in carry flight course, due to factors such as lifting and air-flows, hanging scroll is skidded off from groove 401.
Further, the antenna that the bottom of described lower cover 1 is also provided with for connecting antenna is fixedly connected with port, and described antenna is fixedly connected with port and is fixedly connected with antenna connection 5, and described antenna connection 5 mates with the antenna of different frequency range type is compatible mutually.
As shown in Figure 9, further, described antenna is fixedly connected with port and is connected with antenna by antenna connection 5, one end of described antenna connection 5 is fixedly connected with port match by fixed head 501 and antenna and is connected, described antenna connection 5 other end is provided with antenna docking port 502, described antenna docking port 502 starts there is locating slot 503, in described antenna docking port 502, is provided with antenna electrical interface.
Further, described antenna electrical interface comprises radio frequency interface 504 and control interface 505, in the utility model, blindmate also can be adopted to design, as as described in radio frequency interface 504 can adopt BMA connector, described control interface 505 can adopt the J30 connector of micro-rectangle.
As shown in Figure 10, further, the bottom interior wall of described lower cover 1 also can establish one or more reinforcement 14, adopt the reinforcement of four distributions in X-type.
Further, heat abstractor 6 also can be established in the side of described lower cover 1 and upper cover 2, as arranged multiple air vent, natural wind is incorporated into device interior, thus is taken away by the heat of device interior, reduces the temperature of equipment.
As shown in figure 11, a kind of little point of articulation antenna, comprise t-antenna stay pipe 15, first day linear oscillator 16 and the second antenna oscillator 17, the two ends of the horizontal part of t-antenna stay pipe 15 are respectively equipped with the first antenna connecting seat 18 and the second antenna connecting seat 19, first day linear oscillator 16 is connected with the first antenna connecting seat 18, and the second antenna oscillator 17 is connected with the second antenna connecting seat 19.
Described antenna mounting pipe 15 is carbon fiber pipe, has high, the lightweight feature of intensity.
The first printed board antenna is provided with in described first day linear oscillator 16, the second printed board antenna is provided with in second antenna oscillator 17, be provided with combiner in the vertical portion of t-antenna stay pipe 15, the output terminal of the first printed board antenna is connected with the input end of combiner with the output terminal of the second printed board antenna.Described combiner can adopt 0 degree of power splitter reversal connection to realize.
Described first printed board antenna formal dress, the second printed board antenna is counter to be filled, and the phase differential of the output voltage of the first printed board antenna and the second printed board antenna is 180 degree.
Described first antenna connecting seat 18 outer wall is provided with two the first boss 20, two the first boss 20 are symmetrical arranged, second antenna connecting seat 19 outer wall is provided with two the second boss 21, two the second boss 21 are symmetrical arranged, first day linear oscillator 16 is provided with two the first fastening devices, two the first fastening devices are symmetrical arranged, second antenna oscillator 17 is provided with two the second fastening devices, two the second fastening devices are symmetrical arranged, first fastening device snaps onto on the first boss 20, and the second fastening device snaps onto on the second boss 21.
The vertical portion of described T-shaped stay pipe 15 is provided with two the 3rd fastening devices, and two the 3rd fastening devices are symmetrical arranged.
The buckle 24 that described first fastening device, the second fastening device and the 3rd fastening device include two the 3rd boss 22 be arranged in parallel, are arranged on the torsion spring 23 between two the 3rd boss 22 and are arranged on torsion spring 23.Described buckle 24 is S-shaped, and the material of buckle 24 is metal.
Described first day linear oscillator 16 comprises the first main casing and the first cover plate, first main casing and the first cover plate are T-type structure, first cover plate is fixed on the first main casing by many screws, and the first printed board antenna is fixed on the first main casing by many screws; The line of two the first fastening devices is parallel to the horizontal part of the first main casing, takes up room little during transport.
Described second antenna oscillator 17 comprises the second main casing and the second cover plate, second main casing and the first cover plate are T-type structure, second cover plate is fixed on the second main casing by many screws, and the second printed board antenna is fixed on the second main casing by many screws; The line of two the second fastening devices is parallel to the horizontal part of the second main casing, takes up room little during transport.
Described printed board antenna comprises PCB, and PCB is provided with upper plastic cover, and PCB is provided with antenna micro strip, and the back side of PCB is pasted with metal conductive film.
The position of described metal conductive film is corresponding with antenna micro strip, can improve the result of use of antenna, uses different working environments.
Little point of articulation antenna comprises the first printed board antenna and the second printed board antenna, the first printed board antenna formal dress, and the second printed board antenna is counter to be filled, and improves the signal receiving performance of little point of articulation antenna, enhances the adaptive capacity to environment of little point of articulation antenna; Adopt the mode of snapping to connect between each parts in little point of articulation antenna, assembling and convenient disassembly, when little point of articulation antenna needs to carry out long-distance transportation, can dismantle, and reduces the space taken in transportation.
Claims (8)
1. an aircraft monitoring and direction finding system, is characterized in that: comprise direction-finding equipment and for direction-finding equipment is mounted on carry-on hanging device; Described direction-finding equipment comprises electronic compass, direction-finder antenna, receiver, X86 disposable plates, WIFI module and WIFI omnidirectional antenna; The output terminal of described electronic compass is connected with X86 disposable plates, and the output terminal of described direction-finder antenna is connected with receiver, and receiver is connected with X86 disposable plates, and X86 disposable plates is connected with WIFI module; WIFI module carries out wireless telecommunications by the direction finding monitoring terminal on WIFI omnidirectional antenna and ground.
2. a kind of aircraft monitoring and direction finding system according to claim 1, is characterized in that: described direction-finding equipment also comprises battery and power management plate; Described battery is connected with power management plate, and the output terminal of power management plate is connected with electronic compass, direction-finder antenna, receiver, X86 disposable plates and WIFI module respectively.
3. a kind of aircraft monitoring and direction finding system according to claim 2, is characterized in that: be provided with radiator structure bottom described power management plate, and power management plate comprises electric power management circuit.
4. a kind of aircraft monitoring and direction finding system according to claim 1, is characterized in that: described direction-finder antenna is little point of articulation antenna.
5. a kind of aircraft monitoring and direction finding system according to claim 1, is characterized in that: described receiver is digital receiver, comprises low noise amplifier, frequency mixer, local oscillator driving amplifier, low-pass filter, A/D convertor circuit; Described low noise amplifier receives and is connected with the first input end of frequency mixer from the radiofrequency signal of direction-finder antenna, the output terminal of low noise amplifier; Second input end of frequency mixer is connected with the output terminal of local oscillator driving amplifier; The output terminal of frequency mixer is connected with low-pass filter and A/D convertor circuit successively, and the output terminal of A/D convertor circuit is connected with X86 disposable plates;
Described receiver also comprises local oscillation signal generator and T-shaped resistance decrement network, and the output terminal of described local oscillation signal generator is connected with local oscillator driving amplifier by T-shaped resistance decrement network.
6. a kind of aircraft monitoring and direction finding system according to claim 1, is characterized in that: described X86 disposable plates comprises central processing unit, storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface; Central processing unit is connected with storer, mu balanced circuit, real time clock circuit, USB interface and RS232 interface respectively; Described central processing unit is also connected with the digital receiver of X86 plate outside and WIFI module respectively;
Described mu balanced circuit comprises voltage input end, voltage output end and multiple voltage stabilizing diode, and described voltage input end is connected to outside power management plate, and described voltage output end is connected with central processing unit; Described multiple voltage stabilizing diodes are connected in parallel between voltage input end and voltage output end;
Described voltage stabilizing diode is transient voltage suppressor diode TVS.
7. a kind of aircraft monitoring and direction finding system according to claim 1, is characterized in that: described hanging device comprises interconnective lower cover (1) and upper cover (2); The both sides of described lower cover (1) are provided with one or morely is convenient to the hanging scroll of carry on unmanned plane (3), and the side of described lower cover (1) also distributes and is provided with power interface (7), WiFi antenna terminal (8) and network interface (13);
The antenna that the bottom of described lower cover (1) is also provided with for connecting antenna is fixedly connected with port, and described antenna is fixedly connected with port and is fixedly connected with antenna connection (5);
Described antenna is fixedly connected with port and is connected with antenna by antenna connection (5), one end of described antenna connection (5) is fixedly connected with port match by fixed head (501) with antenna and is connected, described antenna connection (5) other end is provided with antenna docking port (502), described antenna docking port (502) starts there is locating slot (503), in described antenna docking port (502), is provided with antenna electrical interface.
8. a kind of aircraft monitoring and direction finding system according to claim 4, it is characterized in that: described little point of articulation antenna comprises t-antenna stay pipe (15), first day linear oscillator (16) and the second antenna oscillator (17), the two ends of the horizontal part of t-antenna stay pipe (15) are respectively equipped with the first antenna connecting seat (18) and the second antenna connecting seat (19), first day linear oscillator (16) is connected with the first antenna connecting seat (18), and the second antenna oscillator (17) is connected with the second antenna connecting seat (19);
The first printed board antenna is provided with in described first day linear oscillator (16), the second printed board antenna is provided with in second antenna oscillator (17), be provided with combiner in the vertical portion of t-antenna stay pipe (15), the output terminal of the first printed board antenna is connected with the input end of combiner with the output terminal of the second printed board antenna;
Described first printed board antenna formal dress, the second printed board antenna is counter to be filled;
Described first antenna connecting seat (19) outer wall is provided with at least one first boss (20), second antenna connecting seat (19) outer wall is provided with at least one second boss (21), first day linear oscillator (16) is provided with at least one first fastening device, second antenna oscillator (17) is provided with at least one second fastening device, first fastening device snaps onto on the first boss (20), and the second fastening device snaps onto on the second boss (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824255.XU CN205049729U (en) | 2015-10-23 | 2015-10-23 | Aircraft monitoring direction -finding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824255.XU CN205049729U (en) | 2015-10-23 | 2015-10-23 | Aircraft monitoring direction -finding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205049729U true CN205049729U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520824255.XU Expired - Fee Related CN205049729U (en) | 2015-10-23 | 2015-10-23 | Aircraft monitoring direction -finding system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205049729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223540A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of aircraft monitoring and direction finding system |
| CN107844126A (en) * | 2016-09-20 | 2018-03-27 | 卡西欧计算机株式会社 | Direction estimation device, direction determining method, flight instruments, flying method and recording medium |
-
2015
- 2015-10-23 CN CN201520824255.XU patent/CN205049729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223540A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of aircraft monitoring and direction finding system |
| CN107844126A (en) * | 2016-09-20 | 2018-03-27 | 卡西欧计算机株式会社 | Direction estimation device, direction determining method, flight instruments, flying method and recording medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20201023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |