CN212569157U - Ground monitoring device for aircraft emergency distress signal and portable emergency search terminal - Google Patents
Ground monitoring device for aircraft emergency distress signal and portable emergency search terminal Download PDFInfo
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- CN212569157U CN212569157U CN202021000196.1U CN202021000196U CN212569157U CN 212569157 U CN212569157 U CN 212569157U CN 202021000196 U CN202021000196 U CN 202021000196U CN 212569157 U CN212569157 U CN 212569157U
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Abstract
The utility model relates to an aircraft emergency distress signal ground monitoring device and a portable emergency search terminal, belonging to the civil aviation safety technology, comprising an outdoor ground double-frequency monitoring device and an indoor display terminal connected with the outdoor ground double-frequency monitoring device; the outdoor ground double-frequency monitoring equipment is provided with a signal receiving antenna and a double-system signal processing module; the signal receiving antenna is provided with filters of different frequency bands to receive signals of two frequency bands of 121.5MHz and 406 MHz; the dual-system signal processing module is used for decoding the received emergency signals of the 121.5MHz frequency band and the 406MHz frequency band and transmitting data to an indoor display end; and the indoor display terminal is used for collecting, storing and displaying monitoring information from the outdoor ground dual-frequency monitoring equipment. The device and the portable emergency search terminal used in combination thereof not only realize the all-day real-time monitoring of two channel signals of the aircraft, but also reduce the excessive dependence on the original foreign Cospas-Sarsat system.
Description
Technical Field
The utility model relates to a civilian aviation communication equipment, in particular to emergent distress signal ground monitoring devices of airborne vehicle and portable emergent search terminal.
Background
Emergency signals sent by the aircraft in distress include two frequency bands: a 406MHz band signal and a 121.5MHz analog signal.
At present, the monitoring ways of two signals are different in aviation departments, and 406MHz digital signals are transmitted to each ground receiving station through a satellite link of an international search and rescue satellite system (Cospas-Sarsat) and then transmitted to a civil aviation operation monitoring center through corresponding departments, so that the method can be used for emergency positioning and search and rescue assistance after an accident occurs to an airplane; the 121.5MHz frequency band signal is a communication channel of a safe wireless telephone and an aviation mobile service radio station when in distress, and related alarm information can be received between an airplane and an air traffic control tower or between airplanes in a certain range of flight altitude, so that more related aircraft emergency information cannot be effectively provided.
For 406MHz frequency band signals, the civil aviation bureau does not have a monitoring means to acquire 406MHz emergency signals at the first time at present, but relies on a Cospas-Sarsat system. However, the 406MHz signal analyzed by the Cospas-Sarsat system often has an analysis error due to too weak signal, so that the relevant emergency positioning information cannot be effectively and timely determined.
At present, a terminal and an emergency distress warning device which are used for simultaneously carrying out outdoor monitoring, analysis and comparison discrimination on two frequency band signals in real time are not available.
SUMMERY OF THE UTILITY MODEL
The utility model discloses blank based on above-mentioned field provides one kind can be simultaneously to the real-time ground monitoring's of 406MHz digital signal and 121.5MHz analog signal device, and concrete technical scheme is as follows:
the utility model provides an aircraft emergency distress signal ground monitoring device, which is characterized in that the ground monitoring device comprises an outdoor ground double-frequency monitoring device and an indoor display end connected with the outdoor ground double-frequency monitoring device;
the outdoor ground double-frequency monitoring equipment is provided with a signal receiving antenna and a double-system signal processing module;
the signal receiving antenna is provided with filters of different frequency bands to receive signals of two frequency bands of 121.5MHz and 406 MHz;
the signal receiving antenna is connected with the dual-system signal processing module to ensure that signal data are transmitted to the dual-system signal processing module;
the dual-system signal processing module is used for decoding the received emergency signal data of the frequency bands of 121.5MHz and 406MHz and transmitting the decoded signal data to an indoor display end;
the indoor display terminal is used for collecting, storing and displaying monitoring information from the outdoor ground dual-frequency monitoring equipment; the monitoring information can be transmitted to a back-end data processing center through a network; and the alarm data receiving module is used for receiving the alarm data transmitted by the back-end data processing center.
The utility model discloses emergent distress signal ground monitoring device of airborne vehicle sets up at ground monitoring points such as airport, route service station along the line.
Preferably, the outdoor ground dual-frequency monitoring device is further provided with a lateral element for detecting the direction of origin of the received signal.
The utility model provides an outdoor ground dual-frenquency monitoring devices still possesses preliminary radio signal position and judges except can providing the monitoring and the decoding of emergency signal, only 121.5MHz receives and receives under the condition of not taking positional information in the 406MHz signal, also can possess preliminary position definite function, improves the emergency signal and in time discovers and the quick investigation ability of spurious triggering interference signal.
Preferably, the outdoor ground dual-frequency monitoring device is in a column shape, the bottom end of the outdoor ground dual-frequency monitoring device is used for being fixed on the ground, and the signal receiving antenna and the lateral element are arranged from the upper portion to the top end of the outdoor ground dual-frequency monitoring device.
Further preferably, the indoor display terminal is provided with the following functional modules:
the alarm information display module is used for displaying monitoring information from the outdoor ground dual-frequency monitoring equipment or other ways and alarm information transmitted from the rear-end data processing center;
and the alarm map display module is used for displaying the position of the monitored emergency signal and the surrounding environment.
The utility model discloses in, indoor display terminal not only is responsible for the collection of outdoor ground dual-frenquency monitoring facilities's monitoring information, can also carry out key effect such as data interaction, analysis result show, real-time warning state show with the back-end processing center, also need simultaneously to carry out the automatic generation and the report of checking the flow report according to the relevant operation regulation of civil aviation. The indoor display terminal displays related alarm information based on the visual decoding signals, and meanwhile, the terminal establishes data interconnection with the aircraft alarm information processing center terminal through a civil aviation private network based on a B/S framework, so that the information acquisition capacity of related supervision departments after emergency signals are found is improved. The acquired real-time information is transmitted back to the aircraft warning information processing center end for the rear-end intelligent analysis processing, analysis and storage of the information, and the processed result is returned to the indoor display end for display, so that the operation supervision unit or each benefit-related department can timely master the emergency situation and judge the situation.
Furthermore, the utility model also provides a portable emergent search terminal who uses with above-mentioned device combination, its characterized in that contains casing, display screen, button, signal reception component and signal transmission component, data processing component and power pack; the display screen, the keys and the signal receiving element are arranged on the surface of the shell;
the signal receiving element is used for receiving 121.5MHz and 406MHz signals and searching command signals transmitted by the device;
the signal transmitting element is used for connecting a network access rear-end data processing center/indoor display end and simultaneously transmitting received emergency signal information;
the data processing element and the power supply box are arranged in the shell;
the data processing element is provided with the following functional modules
Two standard signal monitoring module: the signal receiving element is connected with the signal receiving element and is used for receiving and analyzing a 121.5MHz or 406MHz signal;
and the signal orientation estimation module is connected with the signal receiving element and is used for measuring and calculating the orientation of the emergency signal based on the direction-finding function of the Received Signal Strength (RSSI).
Further, the data processing element is also provided with the following functional modules:
the warning map display module is used for searching the position of the target in the map;
preferably, the data processing element is further provided with the following functional modules:
the BD/GPS multimode self-positioning function module is connected with the alarm map display module and is used for providing a visual relative position between the BD/GPS multimode self-positioning function module and the target; which is connected to the positioning signal receiving element.
Preferably, the data processing element is further provided with the following functional modules:
and the multi-mode information returning module is connected with the signal receiving element and the signal transmitting element and is used for matching the field communication environment and selecting the wireless communication mode with the optimal mode so as to return the self information and the search information to the indoor display terminal in real time.
The signal receiving element is provided with different frequency band filters to receive signals of two frequency bands of 121.5MHz and 406 MHz.
The utility model discloses it is based on the actual problem that civil aviation faced to combine civil aviation operation characteristics and demand, provide one set can be through the real time monitoring in the time of localized means to 406MHz digital signal and 121.5MHz analog signal, search and investigation.
The utility model provides a dual-frenquency check out test set (outdoor ground dual-frenquency monitoring facilities and portable emergent search terminal) has following function, all can be based on current technical level and combine the design of this invention and realize:
monitoring functions of 1.121.5MHz and 406MHz signals;
2. an emergency data decoding function;
3. the emergency target is initially positioned/direction-finding function;
the simultaneous monitoring of the 121.5MHz and 406MHz signals is realized by arranging a signal receiving antenna with a filter on the dual-frequency detection device, for example, a pair of antennas can be used, and filters of different frequency bands are arranged to simultaneously monitor the 121.5MHz and 406MHz data; or two pairs of signal receiving antennas can be arranged and respectively provided with different filters to realize the simultaneous monitoring of the 121.5MHz and 406MHz data;
the emergency data decoding function comprises the following steps: the 121.5MHz signal has no data information and therefore does not need to be decoded; the 406MHz signal adopts a global universal coding format, and a data processing module arranged in the dual-frequency detection device accurately analyzes according to the format of the monitoring data.
The emergency target primary positioning/direction finding function comprises the following steps: the method is realized by arranging a lateral antenna or similar elements on a dual-frequency detection device, and the radio direction finding is realized by measuring the incoming wave direction of radio waves (namely measuring the included angle between the normal directions of wave fronts of arriving electromagnetic waves, which is a mature technology in the radio field) and calculating data according to the propagation characteristics of the electromagnetic waves;
in addition, the 406MHz frequency band emergency signal carries signal data of an emergency target position, and target position/direction information can be preliminarily judged by analyzing the 406MHz signal.
The utility model discloses effectively supply the operation short slab that current Cospas-sarsat's weak signal analysis error code or can't receive the analysis under the specific scene (like airport electromagnetic interference environment), improved signal analysis, signal acquisition ability under the electromagnetic interference environment; by utilizing the local ground autonomous technology, the signal of the aircraft can be monitored in real time all day long, and meanwhile, the local area can be searched in a matched mode, so that the excessive dependence on the original foreign cospas-sarsat system is reduced while the searching efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the ground monitoring device for emergency distress signals of an aircraft,
FIG. 2 is a schematic view of an indoor display terminal in the ground monitoring device for an emergency distress signal of an aircraft according to the present invention;
FIGS. 3A and B are schematic diagrams of a portable emergency search terminal of the present invention;
fig. 4 is a schematic view of the ground monitoring device for emergency distress signals of an aircraft according to the present invention in combination with a portable emergency search terminal;
the system comprises 1-outdoor ground double-frequency monitoring equipment, 11-a signal receiving antenna and 12-a double-system signal processing module; 13-same frequency band filter, 14-lateral element; 2-indoor display end, 21-alarm information display module, 22-alarm map display module, 23-expanded alarm information interaction module; 3-portable emergency search terminal, 31-shell, 32-display screen, 33-key, 34-signal receiving element, 35-signal transmitting element, 36-data processing element, 37-power box;
Detailed Description
The present invention is described below in conjunction with the following figures and detailed description, but not intended to limit the invention.
As shown in fig. 1, the utility model provides an aircraft emergency distress signal ground monitoring device, which is characterized in that the device comprises an outdoor ground dual-frequency monitoring device 1 and an indoor display terminal 2 connected with the outdoor ground dual-frequency monitoring device; the outdoor ground dual-frequency monitoring equipment 1 is provided with a signal receiving antenna 11 and a dual-system signal processing module 12; the signal receiving antenna is provided with different frequency band filters 13 to receive signals of two frequency bands of 121.5MHz and 406 MHz; the dual-system signal processing module 12 is configured to decode the received emergency signals in the 121.5MHz frequency band and the 406MHz frequency band, and transmit data to the indoor display terminal 2; the indoor display terminal is used for 2 collecting, storing and displaying monitoring information from the outdoor ground dual-frequency monitoring equipment; the monitoring information can be transmitted to a back-end data processing center through a network; and the alarm data receiving module is used for receiving the alarm data transmitted by the back-end data processing center.
In some embodiments, the outdoor ground dual-frequency monitoring device is further provided with a lateral element 14 for detecting the direction of origin of the received signal.
In most embodiments, the outdoor ground dual-frequency monitoring device is in the shape of a column, the bottom end is used for fixing on the ground, and the signal receiving antenna 11 and the lateral element 14 are arranged from the upper part to the top end.
As shown in fig. 2, in most embodiments, the indoor display terminal is provided with the following functional modules:
the alarm information display module 21 is used for displaying monitoring information from the outdoor ground dual-frequency monitoring equipment or other ways and alarm information transmitted from the rear-end data processing center;
the alarm map display module 22 is used for displaying the position of the monitored emergency signal and the surrounding environment;
and the extended alarm information interaction module 23 is used for performing data interaction with the far end and the back end data processing center end through a network.
The utility model also provides a portable emergency search terminal 3 used in combination with the ground monitoring device, which is characterized in that the portable emergency search terminal comprises a shell 31, a display screen 32, a key 33, a signal receiving element 34, a signal transmitting element 35, a data processing element 36 and a power supply box 37; the display screen 32, the keys 33, the signal receiving element 34 and the signal transmitting element 35 are arranged on the surface of the shell 31, as shown in a diagram B of FIG. 3; the signal receiving element 34 is used for receiving 121.5MHz and 406MHz signals; the signal transmitting element 35 is used for connecting a network access back-end data processing center/indoor display terminal and simultaneously transmitting received emergency signal information; the data processing element 36 and the power supply box 37 are disposed inside the housing 31, as shown in a diagram of fig. 3;
as shown in fig. 4, the data processing element 36 is provided with the following functional modules:
two standard signal monitoring module: is connected with the signal receiving element 34 and is used for receiving and analyzing signals of 121.5MHz and 406 MHz;
and the signal orientation estimation module is connected with the signal receiving element and is used for measuring and calculating the orientation of the emergency signal based on the direction-finding function of the Received Signal Strength (RSSI).
In some embodiments of the portable emergency search terminal 3, the data processing element is further provided with an alarm map display module for searching for the location of an object in a map;
in some embodiments of the portable emergency search terminal 3, the data processing unit is further provided with a BD/GPS multimode self-positioning function module 36, coupled to the alarm map display module, for providing a visual relative position of itself to the object;
in some embodiments of the portable emergency search terminal 3, the data processing element is further provided with a multi-mode information feedback module for matching with the field communication environment and selecting the best mode wireless communication mode to transmit the self information and the search information back to the indoor display terminal in real time.
In some embodiments of the portable emergency search terminal 3, the signal receiving element 34 is provided with different frequency band filters to receive signals in both the 121.5MHz and 406MHz frequency bands.
The utility model discloses a use method of device as follows:
the device of the utility model is arranged at the airport and the service station along the route,
the outdoor ground dual-frequency monitoring equipment monitors the two frequency bands of 121.5MHz and 406MHz in real time and can judge whether signal capture exists in real time;
after capturing the signal of any frequency band, classifying and judging the signal, and further judging whether capturing the signal of another frequency band;
classification into three categories based on captured signal conditions
and each situation is subjected to processing such as grade discrimination output to an indoor display terminal, signal decoding, channel tracking, initial direction judgment, signal characteristic analysis and the like, and corresponding emergency response and receiving processing modes are provided.
As shown in fig. 4, portable emergent search terminal the utility model provides a portable emergent search terminal basis the information that indoor display end sent is implemented searching and investigation to the on-the-spot signal.
On the basis that the outdoor ground dual-frequency monitoring equipment receives a 121.5MHz or 406MHz signal, if the aircraft transmitting the signal is judged to be within a certain short-time reachable range, the indoor display terminal sends information to the portable emergency search terminal, and the portable emergency search terminal searches and checks the field signal.
Claims (9)
1. The ground monitoring device is characterized by comprising an outdoor ground double-frequency monitoring device and an indoor display terminal connected with the outdoor ground double-frequency monitoring device;
the outdoor ground double-frequency monitoring equipment is provided with a signal receiving antenna and a double-system signal processing module;
the signal receiving antenna is provided with filters of different frequency bands to receive signals of two frequency bands of 121.5MHz and 406 MHz;
the signal receiving antenna is connected with the dual-system signal processing module to ensure that signal data are transmitted to the dual-system signal processing module;
the dual-system signal processing module is used for decoding the received emergency signal data of the frequency bands of 121.5MHz and 406MHz and transmitting the decoded signal data to an indoor display end;
the indoor display terminal is used for collecting, storing and displaying monitoring information from the outdoor ground dual-frequency monitoring equipment; the monitoring information can be transmitted to a back-end data processing center through a network; and the alarm data receiving module is used for receiving the alarm data result transmitted by the back-end data processing center.
2. A surface monitoring apparatus as claimed in claim 1, wherein the outdoor surface dual frequency monitoring device is further provided with a lateral element for detecting the direction of origin of the received signal.
3.A surface monitoring apparatus as claimed in claim 1, wherein the outdoor surface dual frequency monitoring device is in the form of a pillar, the bottom end is adapted to be fixed to the surface, and the signal receiving antenna and the lateral member are arranged from the top to the top.
4. The ground monitoring device of claim 1, wherein the indoor display end is provided with the following functional modules:
the alarm information display module is used for displaying monitoring information from the outdoor ground dual-frequency monitoring equipment or other ways and alarm information transmitted from the rear-end data processing center;
and the alarm map display module is used for displaying the position of the monitored emergency signal and the surrounding environment.
5. A portable emergency search terminal for use in combination with a ground monitoring device as claimed in any one of claims 1 to 4, comprising a housing, a display screen, a key, a signal receiving element, a signal transmitting element, a data processing element and a power pack;
the display screen, the keys and the signal receiving element are arranged on the surface of the shell;
the signal receiving element is used for receiving signals of 121.5MHz and 406MHz and information signals transmitted from the device;
the signal transmitting element is used for transmitting a searching result by the ground monitoring device;
the data processing element and the power supply box are arranged in the shell;
the data processing element is provided with the following functional modules
Two standard signal monitoring module: the signal receiving element is connected with the signal receiving element and is used for receiving and analyzing a 121.5MHz or 406MHz signal;
and the signal orientation estimation module is connected with the signal receiving element and is used for measuring and calculating the orientation of the emergency signal based on the direction-finding function of the Received Signal Strength (RSSI).
6. The portable emergency search terminal of claim 5, wherein the data processing component is further provided with an alarm map display module for searching for the location of an object in a map.
7. The portable emergency search terminal of claim 5, wherein the data processing unit is further provided with a BD/GPS multi-mode self-positioning function module, coupled based on the alarm map display module, for providing a visual relative position of itself to the target; which is connected to the positioning signal receiving element.
8. The portable emergency search terminal according to claim 5, wherein the data processing element further comprises a multi-mode information feedback module, which is connected to the signal receiving element and the signal transmitting element, and is configured to match the field communication environment and select the best mode of wireless communication mode to transmit the self information and the search information back to the indoor display terminal in real time.
9. The portable emergency search terminal according to claim 5, wherein the signal receiving element is provided with filters of different frequency bands to receive signals of both the 121.5MHz and 406MHz frequency bands.
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| CN202021000196.1U CN212569157U (en) | 2020-06-04 | 2020-06-04 | Ground monitoring device for aircraft emergency distress signal and portable emergency search terminal |
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| CN202021000196.1U CN212569157U (en) | 2020-06-04 | 2020-06-04 | Ground monitoring device for aircraft emergency distress signal and portable emergency search terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655294A (en) * | 2021-08-31 | 2021-11-16 | 华夏飞机维修工程有限公司 | Ground plane emergency signal false triggering detection device and emergency signal processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655294A (en) * | 2021-08-31 | 2021-11-16 | 华夏飞机维修工程有限公司 | Ground plane emergency signal false triggering detection device and emergency signal processing method |
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