A remote monitoring device for an instrument landing system

Abstract

The utility model belongs to the technical field of monitoring device, provide a kind of remote monitoring device of instrument landing system, comprising: near-end module, near-end module is connected with ILS equipment, to obtain the equipment state data of ILS equipment;Far-end module, far-end module is transmitted signal with near-end module through network, and the equipment state data received from network is handled, to show the equipment state data of ILS equipment and / or according to equipment state condition trigger or stop corresponding voice broadcast.The utility model's advantage lies in through voice generating circuit in far-end module, can according to equipment state condition trigger the voice file of the specific content played, replaced the single buzzer alarm of traditional repetitive display.This makes controller not need to rely on visual secondary confirmation to be able to quickly, accurately identify specific equipment alarm type, greatly shorten reaction time, effectively improve flight safety guarantee level.

Description

Technical Field

[0001] This utility model relates to the field of monitoring system technology, and in particular to a remote monitoring device for an instrument landing system. Background Technology

[0002] Civil aviation ILS (Instrument Landing System) equipment mainly includes LLZ (Localization Zone) and GP (Glide Path) systems. As an important aviation navigation system, ILS allows pilots to land without relying on their eyes, a feature commonly known as "blind landing," especially when landing in low-visibility weather. If the ILS equipment malfunctions, air traffic controllers must immediately instruct the pilots to abort the landing and adjust the flight procedure to prevent jeopardizing flight safety. Therefore, the status monitoring of ILS equipment requires high real-time performance and high reliability.

[0003] The repeater display that comes with the NORMAC 7000B ILS equipment is simple in design and uses level-controlled cable transmission or FSK twisted-pair cable transmission. It also lacks communication failure alarm functions. For monitoring points with distances of more than kilometers, laying cables and twisted-pair transmission lines is very uneconomical and greatly increases costs. Moreover, in reality, cables are rarely used between distant buildings in airports. Most of them are laid with fiber optic networks for communication transmission.

[0004] Meanwhile, the NORMAC 7000B ILS equipment currently uses a repeating display to indicate equipment alarms with a beeping sound, requiring controllers to visually identify the specific equipment alarm. Utility Model Content

[0005] The purpose of this invention is to provide a remote monitoring device for an instrument landing system to solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A remote monitoring device for an instrument landing system includes:

[0008] The near-end module connects to the ILS device to obtain the device status data of the ILS device;

[0009] The remote module transmits signals to the near-end module via the network and processes the device status data received from the network to display the device status data of the ILS device and / or trigger or stop the corresponding voice playback according to the device status conditions.

[0010] Furthermore, the near-end module includes:

[0011] The acquisition and control circuit is connected to the ILS device to acquire the device status data of the ILS device and output control signals to the ILS device.

[0012] The first core microcontroller circuit has one end connected to the acquisition and control circuit.

[0013] The first network transmission circuit has one end connected to the first core microcontroller circuit.

[0014] Furthermore, the acquisition and control circuit includes multiple identical status acquisition modules, which include:

[0015] Interface connectors are used to connect to ILS devices.

[0016] Multiple optocouplers are used, with the light-emitting ends of the optocouplers connected to the respective signal pins of the interface connectors, and the light-receiving ends of the optocouplers connected to the first core microcontroller circuit.

[0017] Furthermore, the first network transmission circuit includes a data encoding chip, which is used to convert network data into TTL serial data and / or convert TTL serial data into network data.

[0018] Furthermore, the remote module includes:

[0019] The second network transmission circuit transmits signals with the first network transmission circuit via a network.

[0020] The second core microcontroller circuit has one end connected to the second network transmission circuit.

[0021] The display circuit is connected to the second core microcontroller circuit to display the device status data of the ILS device;

[0022] The voice generation circuit is connected to the second core microcontroller circuit to trigger or stop the corresponding voice playback according to the device status conditions.

[0023] The first control button is connected to the second core microcontroller circuit to send a control signal to stop the corresponding voice playback from being played by the voice generation circuit.

[0024] Furthermore, the second network transmission circuit includes a data encoding chip, which is used to convert network data into TTL serial data and / or convert TTL serial data into network data.

[0025] Furthermore, the display circuit includes multiple LED indicators, which are connected to the second core microcontroller circuit. The second core microcontroller circuit outputs a low level to illuminate the LED indicators.

[0026] Furthermore, the display circuit includes multiple second control buttons. Each time a second control button is pressed, the ILS device switches between power on and power off once.

[0027] Furthermore, the voice generation circuit includes a voice storage chip and a speaker. The voice storage chip stores voice files with different contents. Any voice file is extracted from the voice storage chip, decoded and amplified, and then sent to the speaker for voice playback.

[0028] Furthermore, one end of the first control button is grounded, and the other end is connected to the second core microcontroller circuit. When the first control button is pressed, the second core microcontroller circuit outputs a control signal to reset each voice playback trigger pin to a high level and stop the playback of the currently existing alarm voice.

[0029] Compared with the prior art, this utility model has at least the following beneficial effects:

[0030] (1) Through the voice generation circuit in the remote module, a voice file with specific content can be played according to the device status conditions, replacing the single beep alarm of the traditional repeating display. This allows controllers to quickly and accurately identify the specific device alarm type without relying on visual secondary confirmation, greatly shortening the reaction time and effectively improving the level of flight safety assurance;

[0031] (2) By using optical fiber network for signal transmission through near-end module and far-end module, the uneconomical and complex kilometer-level special cable or twisted pair in traditional monitoring device is replaced, which significantly reduces the cost of cable laying.

[0032] (3) The device is equipped with communication status indicators (such as LED indicator lights) and manual control buttons (such as the first control button for mute and the second control button for remote switching of equipment), making the system operation status clear at a glance and giving monitoring personnel the ability to intervene manually in a timely manner, further ensuring the reliability and controllability of the monitoring process. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the architecture of the remote monitoring device for the instrument landing system provided in this embodiment;

[0035] Figure 2This is the circuit schematic diagram of the remote / near-end core microcontroller circuit provided in this embodiment;

[0036] Figure 3 This is a circuit diagram of the near-end acquisition and control circuit provided in this embodiment;

[0037] Figure 4 This is a circuit diagram of the far / near-end network transmission circuit provided in this embodiment;

[0038] Figure 5 This is a circuit diagram of the remote display circuit and control buttons provided in this embodiment;

[0039] Figure 6 This is a circuit diagram of the remote voice generation circuit provided in this embodiment;

[0040] Figure 7 This is a circuit diagram of the far / near end voltage conversion circuit provided in this embodiment. Detailed Implementation

[0041] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0042] like Figure 1 As shown, this embodiment provides a remote monitoring device for an Instrument Landing System (ILS), comprising a near-end module and a far-end module. The near-end module is connected to the ILS device to acquire its device status data. The far-end module transmits signals to the near-end module via a network and processes the device status data received from the network to display the ILS device's status data and / or trigger or stop corresponding voice playback based on device status conditions.

[0043] The near-end module includes a data acquisition and control circuit, a first core microcontroller circuit, a first network transmission circuit, and a first voltage conversion circuit. The output of the data acquisition and control circuit is connected to the ILS device to acquire device status data and output control signals to the ILS device. One end of the first core microcontroller circuit is connected to the data acquisition and control circuit, and one end of the first network transmission circuit is connected to the first core microcontroller circuit.

[0044] The remote module includes: a second network transmission circuit, a second core microcontroller circuit, a display circuit, a voice generation circuit, a first control button, and a second voltage conversion circuit. The second network transmission circuit transmits signals to the first network transmission circuit via a network. One end of the second core microcontroller circuit is connected to the second network transmission circuit. The display circuit is connected to the second core microcontroller circuit to display the device status data of the ILS device. The voice generation circuit is connected to the second core microcontroller circuit to trigger or stop corresponding voice playback based on device status conditions. The first control button is connected to the second core microcontroller circuit to send a control signal to stop the corresponding voice playback from the voice generation circuit.

[0045] Taking the MB1346A component of the NORMAC 7000B ILS device as an example, in the near-end module, the core microcontroller circuit acquires the device status data through the acquisition and control circuit. The network transmission circuit is connected to the first core microcontroller circuit, receives the device status data sent by the core microcontroller, converts it into network data signals, and sends it to the network. Simultaneously, the first network transmission circuit transmits the device control data received from the network to the core microcontroller. The core microcontroller processes the device control data and outputs control signals to the device through the acquisition and control circuit.

[0046] At the remote monitoring end, the second network transmission circuit is connected to the second core microcontroller circuit, transmitting device status data received from the network to the core microcontroller. The core microcontroller processes the data and outputs it to the display circuit for corresponding display. Simultaneously, the core microcontroller controls the voice generation circuit to trigger or stop corresponding voice playback based on the device status conditions. The second core microcontroller circuit is connected to the first control button, processing changes in the button state as control data and sending it to the second network transmission circuit. The second network transmission circuit converts the control data into network data and sends it to the network.

[0047] In this embodiment, as Figure 2 As shown, the core microcontroller circuit features a data processing microcontroller chip U1, model STC89C52. Microcontroller chip U1 has multiple pins... Figure 2 In this circuit, the core microcontroller circuit also includes some peripheral auxiliary circuit components, including a startup reset capacitor C1, a clock circuit consisting of a crystal oscillator X1, capacitors C2 and C3. Capacitor C1 resets the microcontroller upon power-up, ensuring that the microcontroller chip U1 starts working from the initial position. Capacitors C2 and C3, along with the crystal oscillator X1, form a clock circuit that generates an oscillation signal to provide the microcontroller chip U1 with its operating clock. In this embodiment, the first and second core microcontroller circuits in both the remote and near-end modules employ the same circuit design.

[0048] In this embodiment, as Figure 3As shown, the near-end acquisition and control circuit contains four functionally identical modules, namely four status acquisition circuits, which respectively acquire the device status and control the power on / off of the NORMAC 7000B series ILS devices 13LLZ, 13GP, 31LLZ, and 31GP. In this embodiment, for example, the status acquisition and power on / off control circuit of the 13LLZ device uses opto-isolators U00, U01, U02, and U03, model P521, with peripheral components including resistors R00S, R01S, R02S, R03S, R00I, R01I, and R02I. Figure 5 JP1's 13LLZ_+24V, 13LLZ_Normal, 13LLZ_Warning, 13LLZ_Alarm, 13LLZ_On / Off, and 13LLZ_0V are respectively connected to pins 15, 4, 3, 2, 19, and 1 of the P3 interface of the DB25 structure in the MB1346A component of the 13LLZ device;

[0049] Figure 3 P00, P01, P02, and P03 in the text correspond to respectively Figure 2 Pins 37, 36, 35, and 34 of the microcontroller chip U1 in the near-end core microcontroller circuit. (This information can be found in...) Figure 3 As can be seen intuitively, the status acquisition and power-on / off control circuits of the 13GP, 31LLZ, and 31GP devices are completely consistent with the status acquisition and power-on / off control circuit mode of the 13LLZ device mentioned above, and will not be described in words in this embodiment.

[0050] In the near-end acquisition and control circuit, the 13LLZ, 13GP, 31LLZ, and 31GP devices are active low.

[0051] In the acquisition circuit, for example: when the 13LLZ device triggers the warning state, the 13LLZ device sets the corresponding status signal line 13LLZ_Warning in interface JP1 to a low level. At this time, the internal LED of U01 is turned on, and through internal optocoupler, the internal light receiving end is saturated and turned on, and the acquisition state pin P02 is pulled from a high level to a low level. When the warning state of the 13LLZ device disappears, the 13LLZ device sets the corresponding status signal line 13LLZ_Warning in interface JP1 to a high level. At this time, the internal LED of U01 stops working, and no light source is generated, so the internal light receiving end is turned off and turned on, and the acquisition state pin P02 returns from a low level to a high level. Figure 2 The near-end core microcontroller circuit acquires data through... Figure 3 The corresponding device status is obtained by observing the level of the device status pin connected in the diagram.

[0052] Regarding equipment start-up and shutdown control Figure 2 The near-end core microcontroller circuit outputs control signals to Figure 3 The corresponding device control pins are shown in the diagram. For example, when powering on or off the 13LLZ device... Figure 2 The near-end core microcontroller circuit outputs a low-level control signal to Figure 3 When the device control pin P03 is activated, the internal LED of U03 is turned on. Through internal optocoupler, the internal photodetector is saturated and turned on, causing the 13LLZ_On / Off pin of the 13LLZ device power-on / off control signal in interface JP1 to be pulled from high level to low level, so that the 13LLZ device is triggered to power on from the original power-off state, or triggered to power off from the original power-on state.

[0053] In this embodiment, as Figure 4 As shown, the network transmission circuit in the far / near end module includes a data network conversion circuit and a network interface circuit.

[0054] The data network conversion circuit includes a data encoding chip U2, model CH9121, and peripheral components such as resistors R3 and R8, capacitor C12, as well as a peripheral clock circuit consisting of a crystal oscillator X2, capacitors C10 and C11. Figure 4 RXD and TXD correspond to respectively Figure 2 Pins 5 and 7 of the microcontroller chip U1 in the core microcontroller circuit.

[0055] The interface circuit uses interface P1, model HR911105A, and its peripheral components include resistors R1, R2, R4, R5, R6, and R7. Figure 4 Pins 1, 2, 3, 6, 10, and 11 of P1 are connected to pins 8, 7, 5, 4, 53, and 52 of chip U2, respectively. Interfaces J1, J2, J3, J4, J5, J6, J7, and J8 of P1 are connected to an 8-core network cable with an RJ45 structure, which ultimately enters the optical fiber network via an optical switch.

[0056] The first and second network transmission circuits in the far / near end modules have the same circuit composition and the same functional implementation. They convert network data into TTL serial data via the data encoding chip U2 and provide it to the network. Figure 2The microcontroller chip U1 converts its TTL serial data into network data. The network interface P1 contains an isolation transformer and network circuit status indicator lights, and connects to the optical fiber network via an RJ45 interface through an optical switch. The first network transmission circuit is configured in server mode, and the second network transmission circuit is configured in client mode. The first network transmission circuit sends device status data to the remote network transmission circuit via the network; the second network transmission circuit sends device switch control data to the near-end network transmission circuit via the network.

[0057] In this embodiment, as Figure 5 As shown, the remote module includes a display circuit and a control button circuit, which are LED indicator lights and control buttons, respectively. It contains resistors R00C, R01C, R02C, R03C, R04C, R05C, R06C, R07C, R16C, R20C, R21C, R22C, R23C, R24C, R25C, R26C, and R27C; red LEDs LED2, LED4, LED7, LED10, and LED13; yellow LEDs LED5, LED8, LED11, and LED14; green LEDs LED6, LED9, LED12, and LED15; and buttons S1, S2, S3, S4, and S5. Figure 5 P00, P01, P02, P03, P04, P05, P06, P07, P15, P20, P21, P22, P23, P24, P25, P26, P27, and INT0 correspond to respectively Figure 2 The second core microcontroller circuit has the following pins: pin 37, pin 36, pin 35, pin 34, pin 33, pin 32, pin 31, pin 30, pin 1, pin 18, pin 19, pin 20, pin 21, pin 22, pin 23, pin 24, pin 25, and pin 8 of the microcontroller chip U1.

[0058] Figure 5 The LED indicators are used to indicate the device status and communication status. Figure 2The microcontroller chip U1 outputs a low level to the corresponding pin to light up the LED indicator and a high level to turn it off. Buttons S1-S4 are the second control buttons used to control the device's power on / off operation. One end of each button is grounded, and the other end is connected to the corresponding pin of the microcontroller chip U1 via a pull-up resistor. Each press of a button controls the corresponding device to switch between power on and off. Button S5 is the first control button used to manually cancel alarm voice playback. One end of S5 is grounded, and the other end is connected to the INT0 pin of the core microcontroller chip U1. When the button is pressed, the microcontroller chip U1 resets all alarm voice playback trigger pins to a high level, stopping the playback of currently existing alarm voices. If the microcontroller chip U1 does not receive network data within a specified time, it outputs a low level to pin P15, lighting up the red LED2 to indicate a communication failure.

[0059] In this embodiment, as Figure 6 As shown, the voice generation circuit includes a voice decoding and playback chip U6 (model BY8301); a voice storage chip U7 (model GD25Q32); a voice playback power amplifier chip U5 (model MIX2002); and a speaker LS1. Peripheral components include resistors R9, R10, R11, R12, R13, R14, and R15; capacitors C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, and C24; diode D1; and a blue light-emitting diode LED1. Figure 6 P10, P11, P12, P13, and P14 correspond to pins 40, 41, 42, 43, and 44 of the microcontroller chip U1 in the core microcontroller circuit, respectively.

[0060] In the voice generation circuit, the voice storage chip U7 pre-stores the voice files corresponding to each pin. When the microcontroller chip U1 outputs a low level to pins P10, P11, P12, P13, and P14 respectively, the voice decoding and playback chip U6 retrieves the corresponding voice files from the voice storage chip U7, decodes them, and outputs the voice audio signal through pins DACL and DAR. The voice playback power amplifier chip U5 receives the audio signal output by the voice decoding and playback chip U6, amplifies it, and transmits it to the speaker LS1 for alarm voice playback. When outputting the voice audio signal, the voice decoding and playback chip U6 outputs high and low level pulses to the PLAY_LED pin, causing the blue LED1 to flash, indicating that voice playback is in progress.

[0061] In this embodiment, as Figure 7 As shown, a first voltage conversion circuit and a second voltage conversion circuit are respectively provided in the near-end module and the far-end module to supply power to the network transmission circuit. In this embodiment, the first voltage conversion circuit and the second voltage conversion circuit adopt the same circuit design.

[0062] The voltage conversion circuit consists of two parts: the first part converts the power supply voltage from 5VDC to 3.3VDC. The main chip in this circuit is a three-terminal voltage regulator IC chip U3, model LM1117-3.3, with peripheral components including capacitors C4, C5, and C6. The second part converts the power supply voltage from 5VDC to 1.8VDC. The main chip in this circuit is a three-terminal voltage regulator IC chip U4, model LM1117-1.8, with peripheral components including capacitors C7, C8, and C9. The voltage conversion circuit uses the LM1117-3.3 to convert 5VDC to 3.3VDC and then uses the LM1117-1.8 to convert 5VDC to 1.8VDC, supplying power to the network transmission circuit and enabling it to function properly.

[0063] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0064] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0065] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A remote monitoring device for an instrument landing system, characterized in that, include: A proximal module, which is connected to the ILS device to obtain the device status data of the ILS device; The remote module transmits signals to the near-end module via a network and processes the device status data received from the network to display the device status data of the ILS device and / or trigger or stop corresponding voice playback according to the device status conditions.

2. The remote monitoring device for an instrument landing system according to claim 1, characterized in that, The proximal module includes: The acquisition and control circuit is connected to the ILS device to acquire the device status data of the ILS device and output control signals to the ILS device. The first core microcontroller circuit has one end connected to the acquisition and control circuit. The first network transmission circuit has one end connected to the first core microcontroller circuit.

3. The remote monitoring device for an instrument landing system according to claim 2, characterized in that, The acquisition and control circuit includes multiple identical status acquisition modules, each of which includes: An interface connector, which is connected to the ILS device; Multiple optocouplers are provided, with their light-emitting ends connected to the respective signal pins of the interface connector, and their light-receiving ends connected to the first core microcontroller circuit.

4. The remote monitoring device for an instrument landing system according to claim 2, characterized in that, The first network transmission circuit includes a data encoding chip, which is used to convert network data into TTL serial data and / or convert TTL serial data into network data.

5. A remote monitoring device for an instrument landing system according to claim 2, characterized in that, The remote module includes: The second network transmission circuit transmits signals with the first network transmission circuit via a network. The second core microcontroller circuit has one end connected to the second network transmission circuit. The display circuit is connected to the second core microcontroller circuit to display the device status data of the ILS device; The voice generation circuit is connected to the second core microcontroller circuit to trigger or stop the corresponding voice playback according to the device status conditions; The first control button is connected to the second core microcontroller circuit to send a control signal to stop the corresponding voice playback from the voice generation circuit.

6. A remote monitoring device for an instrument landing system according to claim 5, characterized in that, The second network transmission circuit includes a data encoding chip, which is used to convert network data into TTL serial data and / or convert TTL serial data into network data.

7. A remote monitoring device for an instrument landing system according to claim 5, characterized in that, The display circuit includes multiple LED indicators, which are connected to the second core microcontroller circuit. The second core microcontroller circuit outputs a low level to illuminate the LED indicators.

8. A remote monitoring device for an instrument landing system according to claim 7, characterized in that, The display circuit includes multiple second control buttons. When a second control button is pressed once, the ILS device switches between powering on and powering off once.

9. A remote monitoring device for an instrument landing system according to claim 5, characterized in that, The voice generation circuit includes a voice storage chip and a speaker. The voice storage chip stores voice files with different contents. Any voice file is extracted from the voice storage chip, decoded and amplified, and then sent to the speaker for voice playback.

10. A remote monitoring device for an instrument landing system according to claim 5, characterized in that, One end of the first control button is grounded, and the other end is connected to the second core microcontroller circuit. When the first control button is pressed, the second core microcontroller circuit outputs a control signal to reset each voice playback trigger pin to a high level and stop the playback of the currently existing alarm voice.

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