Multi-domain trigger precision self-adaptive IP take-off signal console

Abstract

The utility model relates to a multi-domain trigger precision self-adaptive IP takeoff signal console, which comprises front-end equipment, a takeoff signal controller and a data processing center. The front-end equipment is located in an analog trigger signal acquisition area or an area nearby a transmitting station, such as a communication machine room, and the front-end equipment is used for converting a received analog trigger signal into an IP trigger signal and sending the IP trigger signal to next equipment; the take-off signal controller is connected with the front-end device through an IP network, and the take-off signal controller is matched with a timing system device; the data processing center is connected with the take-off signal controller through an IP network; and the data processing center is used for receiving the T0 information. According to the takeoff signal console, a takeoff signal controller does not need to be deployed in a dangerous area, the takeoff signal controller can be deployed at a remote attended node of an IP network and a long-wave node with stable Beidou signals, and T0 information can be generated to be provided for each system to use by remotely receiving an agreed trigger signal transmitted by the network through the IP network.

Description

Technical Field

[0001] This utility model belongs to the field of unified communication technology for aerospace rocket launch time, specifically involving a multi-domain triggering accuracy adaptive IP takeoff signal control console. Background Technology

[0002] The takeoff signal controller is a key device for synchronizing the ground measurement and control system during space launch. The takeoff zero point (T0) generated by this device is the time origin of the rocket's flight and plays a crucial role in measurement control and real-time data processing. Takeoff zero point refers to the moment of takeoff of the launch vehicle or other spacecraft, that is, the moment when the spacecraft's center of mass begins to move, also known as T0. It marks the start time of the entire flight event and is generally expressed in absolute time form (hours, minutes, seconds, milliseconds). Currently, space launch sites commonly use traditional takeoff signal controllers, with the input takeoff trigger signal being an analog electrical signal. The takeoff trigger signal is transmitted from the rocket system to the takeoff signal controller via a dedicated cable. The takeoff signal controller processes the analog trigger signal to generate T0. A schematic diagram of its working mechanism is shown below. Figure 1 As shown. This system has the following shortcomings:

[0003] (1) The deployment distance between the launch pad and the takeoff signal controller is limited.

[0004] Because traditional takeoff trigger signals are transmitted via cables, the takeoff signal controller system is relatively fixed to the launch pad, with the cable connection being permanent, making it more suitable for land-based fixed launch sites. When there are multiple launch pads or missions are running in parallel, this mode requires the construction of corresponding systems (i.e., a 1-to-1 configuration between the launch pad and the takeoff signal controller), increasing construction costs and maintenance complexity.

[0005] (2) The contradiction between dangerous areas and manned areas cannot be resolved.

[0006] In mobile launch missions, terrain limitations may make it difficult to lay cables. In certain launch missions (such as sea-based space launches), the cable transmission range for takeoff signals is often within danger zones, which creates a significant conflict with the need for manned operation of the takeoff signal controller and manual emergency support.

[0007] (3) Ensure the accuracy of external time system signals.

[0008] The takeoff signal controller requires a standard time as a time reference. During sea-based or land-based mobile launches, the surrounding conditions may limit the availability of a suitable time reference signal, leading to uncertainty in the accuracy of the provided time signal. The absence of an external time reference source inevitably affects the accuracy of the T0 generated by the takeoff signal controller.

[0009] (4) T0 precision cannot be corrected.

[0010] The T0 information generated by traditional takeoff signal controllers is only related to the time information when the simulated trigger signal is received and a fixed interference detection time value. It cannot correct for time error factors caused by other factors (signal transmission delay, error between the time of generation of simulated takeoff trigger signal and the time of takeoff of the aircraft, etc.), thus limiting the accuracy of T0 information generation. Utility Model Content

[0011] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-domain triggering accuracy adaptive IP takeoff signal control console, which solves the technical problems such as the limited deployment distance between the launch station and the takeoff signal controller.

[0012] To solve the above problems, the technical solution of this utility model is: a multi-domain triggering precision adaptive IP takeoff signal control console, comprising:

[0013] The front-end device is located in the analog trigger signal acquisition area. The front-end device is used to convert the received analog trigger signal into an IP trigger signal and send it to the next device.

[0014] The takeoff signal controller is connected to the front-end equipment via an IP network. The takeoff signal controller is also connected to a timing device, which provides accurate time information to the takeoff signal controller. The takeoff signal controller receives the IP trigger signal and verifies its validity. The takeoff signal controller also generates T0 information based on the set delay correction parameters, the packet sequence number in the IP trigger signal, and the time information, and sends the T0 information to the next device.

[0015] The data processing center is connected to the takeoff signal controller via an IP network; the data processing center is used to receive the T0 information.

[0016] There are several front-end devices, which are deployed one-to-one with several launch stations. Each launch station is assigned a unique identifier. Each front-end device is used to transmit the generated IP trigger signal to the takeoff signal controller via the IP network. The takeoff signal controller is used to generate T0 information corresponding to each launch station and send it to the data processing center.

[0017] Preferably, the formula for the T0 information generation calculation function is: T0 = T 外 -T d -k-δ t ;

[0018] Where T0 is the takeoff zero point value generated by the system;

[0019] T 外The absolute time value provided by the timing device when the takeoff signal controller receives the IP trigger signal;

[0020] T d This includes the end-to-end latency of IP trigger signals during network transmission, which can be tested under light network load conditions.

[0021] k is the packet sequence number value k of the IP trigger signal received by the takeoff signal controller;

[0022] δ t This is a theoretical estimate of the time between the simulated trigger signal generation time and the aircraft takeoff time.

[0023] Preferably, the front-end device includes:

[0024] The first takeoff contact signal detection module is used to receive and confirm the first simulated trigger signal;

[0025] The first IP trigger signal generation and output module is connected to the first takeoff contact signal detection module. The first IP trigger signal generation and output module is used to generate and output the first IP trigger signal.

[0026] The second takeoff contact signal detection module is used to receive and confirm the second simulated trigger signal;

[0027] The second IP trigger signal generation and output module is connected to the second takeoff contact signal detection module. The second IP trigger signal generation and output module is used to generate and output the second IP trigger signal.

[0028] Preferably, the first takeoff contact signal detection module is used to perform jitter filtering on the first simulated trigger signal, with a jitter filtering time range of 10 to 20 ms;

[0029] The second takeoff contact signal detection module is used to filter jitter in the second analog trigger signal, with a jitter filtering time range of 10-20ms.

[0030] Preferably, the front-end device includes an FPGA, an ARM, and a first network daughter card; the FPGA is connected to the ARM, and the ARM is connected to the first network daughter card. The FPGA is used to inform the ARM of the received analog trigger signal through a register or interrupt. The ARM is used to identify the analog trigger signal and transmit the analog trigger signal to the first network daughter card. The first network daughter card is connected to the takeoff signal controller. The first network daughter card is used to form an IP trigger signal from the received analog trigger signal and send it to the takeoff signal controller in the form of multicast or unicast.

[0031] Preferably, the takeoff signal controller includes:

[0032] The IP takeoff trigger signal processing module is configured with two network cards, which are used to receive the IP trigger signal provided by the front-end device and the standard time signal provided by the timing device, respectively.

[0033] The host computer is connected to the IP takeoff trigger signal processing module. The host computer is used to generate T0 information and send T0 information to the data processing center.

[0034] Preferably, the IP takeoff trigger signal processing module has a second network sub-card, which is used to receive and parse the parameters in the IP trigger signal, and to determine whether the parameters match the task parameters of the front-end device. If they match, the module generates T0 information and a buzzer tone based on the standard time signal.

[0035] Preferably, the IP network is an all-optical IP network, an IP network constructed with optical transmission circuits, or an IP network constructed with satellite communication transmission circuits.

[0036] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0037] This invention relates to a launch site rocket launch zero-time acquisition system. It is a system or device that converts simulated trigger signals into IP signals, transmits them via an IP network, and has a launch signal controller that directly receives and processes the IP trigger data packets to generate a T0 (Time of Launch) mechanism. This system adaptively corrects the T0 information based on factors such as network latency and packet sequence number. The launch signal control system of this invention represents a fundamental technological upgrade, eliminating the need to deploy launch signal controllers in hazardous areas. The launch signal controller can be deployed at a remote, manned node on the IP network with stable long-wave and BeiDou signals, such as the time synchronization room of the command and control center. It generates T0 information for use by various systems by remotely receiving agreed-upon trigger signals transmitted via the IP network. Attached Figure Description

[0038] Figure 1 A schematic diagram of the working mechanism of a traditional takeoff signal controller system;

[0039] Figure 2 This is a schematic diagram of the connection relationship of the control system in the embodiment;

[0040] Figure 3 This is a schematic diagram illustrating the logical relationship of the T0 information generation process in the embodiment;

[0041] Figure 4 This is a schematic diagram of the control system in the embodiment;

[0042] Figure 5 This is a schematic diagram illustrating the working principle of the front-end device in the embodiment;

[0043] Figure 6This is a schematic diagram showing the connection relationship of several launch station application scenarios in the embodiment;

[0044] Figure 7 This is a schematic diagram of the timing device structure;

[0045] Figure 8 This is a schematic diagram of the timekeeping device panel;

[0046] Figure 9 This is a schematic diagram of the front panel of the front-end device;

[0047] Figure 10 This is a schematic diagram of the rear panel of the front-end device;

[0048] Figure 11 A schematic diagram of the front-end device module layout;

[0049] Figure 12 This is a schematic diagram of the front panel of the takeoff signal controller;

[0050] Figure 13 This is a schematic diagram of the rear panel of the takeoff signal controller;

[0051] Figure 14 This is a layout diagram of the takeoff signal controller module. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0053] Example: Figures 2-14 As shown, this embodiment provides a multi-domain trigger accuracy adaptive IP takeoff signal control console, including a front-end device, a takeoff signal controller, and a data processing center. The front-end device is located in the area near the analog trigger signal acquisition zone or the transmitting station, such as a communication equipment room. The front-end device converts the received analog trigger signal into an IP trigger signal and sends it to the next device. The takeoff signal controller is connected to the front-end device via an IP network. The takeoff signal controller is equipped with a timing device, which provides accurate time information to the takeoff signal controller. The takeoff signal controller receives the IP trigger signal and verifies its validity. The takeoff signal controller also generates T0 information based on delay correction parameters, the packet sequence number in the IP trigger signal, and the time information, and sends the T0 information to the next device. The data processing center is connected to the takeoff signal controller via an IP network. The data processing center receives the T0 information. Several front-end devices are deployed at several transmitting stations, each with a unique identifier. Each front-end device transmits the generated IP trigger signal to the takeoff signal controller via the field metropolitan area network. The takeoff signal controller generates T0 information corresponding to each transmitting station and sends it to the data processing center.

[0054] With the above settings, this control system has the following advantages:

[0055] 1. The trigger signal is not limited by dedicated cable transmission, and the takeoff signal controller can be flexibly deployed.

[0056] Currently, domestically available multi-input multi-output (MIMO) launch signal controllers can provide one launch signal controller for multiple launch sites in close proximity. However, they cannot overcome the limitations of long-distance cable transmission of launch trigger signals, and their T0 generation mechanism still relies on traditional analog trigger signal processing. This invention addresses this by IP-based transmission of analog trigger signals via IP networks. This allows any network node to deploy a launch signal controller to generate T0 information, eliminating the constraints of long-distance cable transmission and hazardous area limitations. This significantly improves the flexibility of equipment deployment and enables applications in aerospace launch missions across multiple fixed land launch sites, sea launch platforms, and mobile launch sites.

[0057] 2. It has a certain T0 accuracy adaptive correction capability.

[0058] (1) The package number is automatically adjusted and corrected (T0).

[0059] In this invention, the generated T0, in addition to being processed according to the set delay correction parameters, can also be automatically adjusted based on the agreed-upon packet sequence number value contained in the IP trigger data packet (IP trigger signal) sent by the front-end device. Due to packet loss in IP networks, the sequence number k of the first packet in the IP trigger data packet sent by the front-end device is set to 0, and subsequent packets increment by natural numbers at 1ms intervals. The back-end device can determine which packet from the front-end device it belongs to by detecting the agreed-upon packet sequence number value in the data packet. Since each packet is spaced 1ms apart, when calculating T0, the time information is subtracted by kms (k being the agreed-upon packet sequence number), thus achieving automatic precision adjustment.

[0060] (2) Selectable correction parameters: This utility model performs real-time detection of the time delay between the front-end and back-end devices, provides a reference for users to correct the time delay parameters, and provides manual and automatic correction functions, which users can select to set.

[0061] This invention adapts to multi-domain triggering and is suitable for multi-position, high-density launch scenarios. It deploys front-end equipment at multiple launch positions, each with a unique identifier. Each IP trigger signal is transmitted via the field metropolitan area network to the back-end equipment of the all-IP takeoff signal controller, generating a takeoff T0 corresponding to each launch position. Based on this function, this invention exhibits adaptability to multi-domain triggering and high-density triggering of multiple trigger signals, resolving the 1:1 correspondence between launch positions and takeoff signal controllers. This effectively alleviates the significant contradiction between a limited number of timing and control technicians and the demands of multi-position, high-density parallel tasks, improving task organization efficiency. The connection relationships in multi-position, high-density launch scenarios are as follows: Figure 6 As shown. Figure 6 The data processing center is a computer system within the aerospace telemetry and control system that processes telemetry and control data in real time. T0 information represents the basic parameters for data processing. The data processing center is the primary user protected by this invention, but it is not part of the design scope of this solution.

[0062] The main function of the front-end device in this invention is to realize the IP conversion of analog trigger signals, that is, to convert analog trigger signals into IP trigger signals. The main function of the takeoff signal controller is to receive the IP trigger signals sent by the front-end device, generate T0 information, and display and send it. A schematic diagram of the control system connection relationship in this embodiment is shown below. Figure 2 As shown, Figure 2 The data processing center in the system is the user's computer system, which is the device that receives and uses TO information.

[0063] The T0 information generation process is as follows: The front-end device receives a simulated trigger signal and generates a customizable IP data packet as the IP trigger data packet, i.e., the IP trigger signal. The IP trigger data packet is transmitted to the back-end device, namely the takeoff signal controller, via the IP network. The back-end device receives the IP trigger data packet and verifies its validity. When the received IP trigger data packet is confirmed to be genuine, T0 information is generated based on the precise time provided by the timing device, the set delay correction parameters, and the packet sequence number, and then sent to the data processing center system. The logical relationship of the T0 information generation process is as follows: Figure 3 As shown.

[0064] In a multi-domain triggering precision adaptive IP takeoff signal control console of this embodiment, the formula for the T0 information generation calculation function is: T0 = T 外 -T d -k-δ t ;

[0065] Where T0 is the takeoff zero point value generated by the system; the format is: XX hour XX minute XX second XXX millisecond XXX microsecond;

[0066] T 外The absolute time value provided by the timing device when the takeoff signal controller receives the IP trigger signal;

[0067] T d This includes the end-to-end latency of IP trigger signals during network transmission, which can be tested under light network load conditions.

[0068] k is the packet sequence number of the IP trigger signal received by the takeoff signal controller. Since the packet sequence number k of the first IP trigger signal is 0, and the natural numbers increment at 1ms intervals, the packet sequence number is k, indicating that this IP trigger signal lags behind the first IP trigger signal packet by kms. The lag time needs to be removed when calculating T0.

[0069] δ t This parameter is a theoretical estimate of the time between the generation of the simulated trigger signal and the takeoff time of the aircraft. It is a manually calculated parameter and is not included in the design content of this utility model.

[0070] like Figure 5 As shown in this embodiment, in a multi-domain trigger accuracy adaptive IP takeoff signal control console, the front-end device includes a first takeoff contact signal detection module, a first IP trigger signal generation and output module, a second takeoff contact signal detection module, and a second IP trigger signal generation and output module. The first takeoff contact signal detection module is used to receive and confirm a first analog trigger signal; the first IP trigger signal generation and output module is connected to the first takeoff contact signal detection module and is used to generate and output the first IP trigger signal; the second takeoff contact signal detection module is used to receive and confirm a second analog trigger signal; the second IP trigger signal generation and output module is connected to the second takeoff contact signal detection module and is used to generate and output the second IP trigger signal.

[0071] In a multi-domain trigger accuracy adaptive IP takeoff signal control console of this embodiment, the first takeoff contact signal detection module is used to perform jitter filtering on the first analog trigger signal, with a jitter filtering time range of 10ms to 20ms; the second takeoff contact signal detection module is used to perform jitter filtering on the second analog trigger signal, with a jitter filtering time range of 10ms to 20ms.

[0072] In a multi-domain trigger accuracy adaptive IP takeoff signal control console according to this embodiment, the front-end device includes an FPGA, an ARM, and a first network daughter card; the FPGA is connected to the ARM, and the ARM is connected to the first network daughter card. The FPGA is used to inform the ARM of the received analog trigger signal through a register or interrupt. The ARM is used to identify the analog trigger signal and transmit the analog trigger signal to the first network daughter card; the first network daughter card is connected to the takeoff signal controller. The first network daughter card is used to form an IP trigger signal from the received analog trigger signal and send it to the takeoff signal controller in the form of multicast or unicast.

[0073] With the above settings, the process of converting the analog trigger signal into an IP trigger signal is as follows: the FPGA of the front-end device informs the ARM of the received analog trigger signal through a register or interrupt; after the ARM recognizes it, it transmits the analog trigger signal to the first network sub-card through a serial port or CAN port; after the first network sub-card receives the analog trigger signal tag, it forms an IP trigger signal message according to the pre-set IP format and sends it to the takeoff signal controller in multicast or unicast form.

[0074] IP Trigger Signal Message Format Design:

[0075] The IP trigger signal message mainly defines the format of the data portion of the IP trigger packet, including the following:

[0076] 1. Task Identifier: This is the identifier for the current task, consisting of 2 bytes.

[0077] 2. Front-end device identifier: Used to identify the sending device, 4 bytes.

[0078] 3. Receiving device identifier: Used to identify the identity of the specified receiving device, 4 bytes.

[0079] 4. IP Takeoff Trigger Signal Classification Identifier: Used to identify the data type of this message, 4 bytes.

[0080] In this embodiment, a multi-domain trigger accuracy adaptive IP takeoff signal control console includes an IP takeoff trigger signal processing module and a host computer. The IP takeoff trigger signal processing module is equipped with two network interface cards (NICs), which are used to receive the IP trigger signal provided by the front-end device and the standard time signal provided by the timing device, respectively. The host computer is connected to the IP takeoff trigger signal processing module and is used to generate T0 information and send T0 information to the data processing center. The host computer has a time delay correction parameter setting, which can be manually entered, primarily by technicians estimating the time delay and making manual settings.

[0081] In a multi-domain trigger accuracy adaptive IP takeoff signal control console of this embodiment, the IP takeoff trigger signal processing module has a second network sub-card. The second network sub-card is used to receive and parse the parameters in the IP trigger signal, and to determine whether the parameters match the task parameters of the front-end device. If they match, T0 information and beep tone are generated according to the standard time signal.

[0082] In this embodiment, the IP network in a multi-domain triggering accuracy adaptive IP takeoff signal control console is an all-optical IP network, an IP network constructed with optical transmission circuits, or an IP network constructed with satellite communication transmission circuits.

[0083] In this embodiment of a multi-domain triggering precision adaptive IP takeoff signal control console, the front-end device has the following functions:

[0084] 1. Acquire takeoff signals. Supports two channels each of active pulse signals and passive contact signals. Jitter filtering of the takeoff signals is available, and the jitter filtering time range is configurable.

[0085] 2. Output a takeoff trigger signal in IP format. The data packet includes a configurable task flag and information source flag to distinguish different tasks and data collection points; an alarm message should be displayed when two or more preset information source flags are identical; to ensure reliable reception, T0 data is designed to send one packet every millisecond, with a default of 10 packets sent continuously (configurable), and the data packet is automatically marked with a sequence number (incrementing) for T0 information correction;

[0086] 3. Message transmission protocol. UDP / IP unicast or multicast transmission protocol is used, which is optional. The destination address and number of unicast data packets sent simultaneously can be set.

[0087] 4. Takeoff signal output interface: compatible with 10 / 100 / 1000M Ethernet port, RJ45 interface, 4 ports;

[0088] 5. After the front-end device and the back-end device are connected, there is a connectivity status indicator or display;

[0089] 6. Each front-end device is a standard rack-mount device with a height of 2U.

[0090] In this embodiment of a multi-domain triggered precision adaptive IP takeoff signal control console, the backend device (takeoff signal controller) has the following functions:

[0091] 1. It can receive and process IP trigger signals sent by front-end devices, and form T0 information based on the standard time information provided by the external time system. When there are more than two IP trigger signals at the same point, the one that arrives first will trigger and form T0 information.

[0092] 2. Correct the T0 value based on the jitter filtering time and message sequence number;

[0093] 3. T0 data uses the UDP / IP protocol and has both unicast and multicast transmission modes. In unicast mode, a single device can send T0 data to multiple (4 by default) IP addresses, with the number of frames sent per second and the transmission time configurable. Each device must have two output ports capable of simultaneously sending T0 information.

[0094] 4. T0 information can be manually generated for self-checking and resending;

[0095] 5. Features T0 information correction function. It can set corresponding correction parameters according to different trigger signal acquisition areas to generate T0 information correction; the default value of the correction parameter is 0, the correction range is ±1 second, the step is 1μs, and a confirmation warning prompt appears before the correction setting takes effect.

[0096] 6. Supports external time synchronization capabilities such as B timecode and PTP; has a delay correction function with a correction range of 0 to 1 second.

[0097] This embodiment of a multi-domain triggering accuracy adaptive IP takeoff signal control console has the following functions:

[0098] 1. T0 Accuracy Indicators: When front-end and back-end devices are connected via an all-optical IP network, the difference between the T0 value generated by the takeoff signal controller based on the cable transmission trigger signal system is ≤5ms (under the same triggering condition); when front-end and back-end devices are connected via an IP network constructed using optical transmission circuits, under light network load (bandwidth utilization not greater than 70%), the difference between the T0 value generated by the takeoff signal controller system based on the cable transmission trigger signal system is ≤20ms (under the same triggering condition); when front-end and back-end devices are connected via an IP network constructed using satellite communication circuits, under light network load (bandwidth utilization not greater than 70%), the difference between the T0 value generated by the takeoff signal controller based on the existing cable transmission trigger signal system is ≤30ms (under the same triggering condition).

[0099] 2. The system has multiple inputs and multiple outputs, meaning that the backend device can receive IP trigger signals from multiple collection points, generate and send the corresponding task's T0 and buzzer.

[0100] 3. It has the function of displaying the connection status of front-end and back-end devices;

[0101] 4. Able to display the name of the launch station corresponding to T0;

[0102] 5. T0 information output interface, compatible with 10 / 100M / 1000M Ethernet port and RJ45 interface.

[0103] The time synchronization device in this utility model belongs to the prior art and is an external device required to ensure the normal operation of this utility model. This utility model mainly uses its B(AC) code or B(DC) code. A time synchronization device is an electronic device that receives and demodulates timing signals from Beidou, GPS, long-wave, etc., and generates and provides users with standard time signals (such as B(AC) code, B(DC) code, 1pps signals, etc.) and standard frequency signals (such as 10MHz). In this utility model, it is used to ensure the accuracy of the time information collected by the system. There are many models of time synchronization devices, such as the high-precision time synchronization devices XHTF330 and SYN1618. This utility model mainly uses the signals provided by B(AC) code or B(DC) code. A schematic diagram of the time synchronization device system structure is attached. Figure 7 As shown in the attached diagram, the panel structure is as follows. Figure 8 As shown.

[0104] The structure of a single front-end device of this utility model is as follows: the front-end device is a 1U standard 19-inch rack-mount chassis, featuring safety designs such as moisture-proof, corrosion-proof, salt spray-proof, and vibration-resistant. The front-end device includes:

[0105] 1. Front Panel: The front panel primarily provides the human-machine interface and status monitoring interface. It is divided into four areas, from left to right: the equipment model identification area, the key parameter display area (LCD), the status indicator area, and the button control area. The design is simple and compact, and electrostatic protection can be achieved by applying a protective film. A schematic diagram of the front panel structure is attached. Figure 9 As shown.

[0106] 2. Rear Panel: The rear panel primarily provides cable input / output interfaces for users. It is divided into four sections, from left to right: power connection area (fuse, ground wire, 220V AC interface), trigger signal input area (capable of receiving two trigger signals S...). m1 S m2 The interface type is cable interface), IP trigger signal output area (can output 4 IP trigger signals, RJ45 interface), network management and debugging area (two network management interfaces (RJ45), 1 test port (DB9 type)).

[0107] 3. Internal module layout: The internal module layout of the front-end device is as follows: Figure 11 As shown. Internally, it contains six modules: a power module, two IP trigger signal generation and output modules (takeoff IP modules), two takeoff contact signal detection modules, and a display and control module.

[0108] The structure of a single back-end device of this utility model is as follows: the takeoff signal controller is a 3U standard 19-inch rack-mount chassis. It includes:

[0109] 1. Front Panel: The front panel is primarily for human-computer interaction and is divided into three areas: an indicator light area, an LCD display area, and a button control area. The design is simple and compact, and electrostatic protection can be achieved by applying a protective film. Its front panel structure diagram is shown below. Figure 12 As shown.

[0110] 2. Rear Panel: The rear panel primarily provides input / output interfaces for the user, as shown in the attached image. Figure 13 As shown. From left to right (excluding the empty panel), the components are: B-code receiver board, TOIP board (2 pieces), buzzer board, network management board, NTP / PTP receiver board, and power supply board (2 pieces).

[0111] 3. Internal Module Layout: The internal functional module layout is shown in the attached figure. Figure 14 As shown. It mainly includes a power supply module (2 units), a buzzer module, a TOIP module (2 units), a PTP / NTP processing module, a B-code processing module, a monitoring module, a display control module, a printing module, and a clock module.

Claims

1. A multi-domain trigger accuracy adaptive IP takeoff signal console, characterized in that, The application relates to a system for generating IP trigger signals, which comprises the following parts: a front-end device, which is arranged in an analog trigger signal acquisition area and is used for converting a received analog trigger signal into an IP trigger signal and transmitting the IP trigger signal to a next device; a take-off signal controller, which is connected with the front-end device through an IP network, and is connected with a time device, which is used for providing accurate time information for the take-off signal controller; the take-off signal controller is used for receiving the IP trigger signal and checking the legality of the IP trigger signal; the take-off signal controller is also used for generating T0 information according to a time delay correction parameter, a packet serial number value in the IP trigger signal and the time information, and transmitting the T0 information to a next device; a data processing center, which is connected with the take-off signal controller through the IP network; the data processing center is used for receiving the T0 information. The front-end device has a plurality of front-end devices, which are arranged in a one-to-one correspondence in a plurality of launching stations; each launching station is provided with a unique identifier; each front-end device is used for transmitting the formed IP trigger signal to the take-off signal controller through the IP network; the take-off signal controller is used for generating T0 information corresponding to each launching station and transmitting the T0 information to the data processing center.

2. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 1, characterized in that, The expression formula of the T0 information generation calculation function is: T0 = T 外 -T d -k-δ t ; Wherein, T0 is a take-off zero point value generated by the system. T 外 Absolute time value provided by the timing device when the IP trigger signal is received by the takeoff signal controller; T d The end-to-end delay including the IP trigger signal in network transmission can be obtained when the network is lightly loaded; k is the packet sequence number value k received by the takeoff signal controller from the IP trigger signal; delta t is a theoretical estimate of the time between the moment of generation of the simulation trigger signal and the moment of take-off of the aircraft.

3. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 1, characterized in that, The front-end device comprises: a first take-off contact signal detection module, which is used for receiving and confirming a first analog trigger signal; a first IP trigger signal generation and output module, which is connected with the first take-off contact signal detection module; the first IP trigger signal generation and output module is used for generating and outputting a first IP trigger signal; a second take-off contact signal detection module, which is used for receiving and confirming a second analog trigger signal; a second IP trigger signal generation and output module, which is connected with the second take-off contact signal detection module; the second IP trigger signal generation and output module is used for generating and outputting a second IP trigger signal.

4. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 3, characterized in that, The first take-off contact signal detection module is used for performing jitter filtering on the first analog trigger signal; the jitter filtering time range is 10-20 ms; The second take-off contact signal detection module is used for performing jitter filtering on the second analog trigger signal; the jitter filtering time range is 10-20 ms.

5. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 1, wherein, The front-end device comprises an FPGA, an ARM and a first network sub-card; the FPGA is connected with the ARM; the ARM and the first network sub-card are connected; the FPGA is used for informing the ARM of the received analog trigger signal through a register or an interrupt mode; the ARM is used for identifying the analog trigger signal and transmitting the analog trigger signal to the first network sub-card; the first network sub-card is connected with the take-off signal controller; the first network sub-card is used for forming an IP trigger signal from the received analog trigger signal, and transmitting the IP trigger signal to the take-off signal controller in the form of multicasting or unicasting.

6. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 1, wherein, The take-off signal controller comprises: an IP take-off trigger signal processing module, which is provided with two network cards; the two network cards are respectively used for receiving an IP trigger signal provided by the front-end device and a standard time signal provided by the time device; a host computer, which is connected with the IP take-off trigger signal processing module; the host computer is used for generating T0 information and transmitting the T0 information to the data processing center.

7. A multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 6, wherein, The IP take-off trigger signal processing module has a second network subcard for receiving and analyzing parameters in the IP trigger signal and for judging whether the parameters match the task parameters of the front-end device, and if so, generating T0 information and a buzzer sound according to the standard time signal.

8. The multi-domain trigger accuracy adaptive IP takeoff signal console according to claim 1, wherein, The IP network is an all-optical IP network, an IP network built by optical transmission circuits, or an IP network built by satellite transmission circuits.

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