AC synchronizer follow-up instrument control system

Abstract

The utility model discloses an AC synchronizer follow-up instrument control system, and belongs to the field of portable control boxes. According to the structure, a screen and a control panel are fixedly installed on a second box body, a single-chip microcomputer is arranged in a suitcase, a PCB of the single-chip microcomputer is fixed in the suitcase, an interface is formed in the PCB, a threading hole is formed in the side portion of the suitcase, the threading hole is kept in the outer side of the interface, a power button and a control button are arranged in the suitcase, and the power button and the control button are arranged in the suitcase. The power button is connected to a power supply circuit of the PCB, the control button is electrically connected with the PCB, a status lamp and a loudspeaker are arranged on the second box body, and the loudspeaker, the status lamp, the control panel and the screen are electrically connected with the PCB. The remote control device is carried in portable handheld equipment, an integrated installation structure is adopted, and wireless communication with a controlled instrument is established while mobility and portability are achieved, so that the purpose of remote control is achieved. The portable portable electric fan is compact in structure and convenient to carry, and has remarkable technical progress.

Description

Technical Field

[0001] The utility model relates to the technical field of portable control boxes, in particular to an AC synchronizer follower instrument control system. Background Art

[0002] The heading position indicator (ZEH-1R(B)) is an indicating instrument on a certain type of aircraft flight simulation system. The heading position indicator provides important navigation support to the pilot by providing heading information and radio navigation elements, ensuring the safety and accuracy of the flight.

[0003] In the prior art, single-chip microcomputers are generally used to implement instrument control. The instrument establishes a connection with the single-chip microcomputer hub through the RS485 bus, receives data sent by the host computer, and drives the instrument to make corresponding indications after analysis and processing. This method is basically a single-input single-output structure, and there is no coupling between the meters. The functions of the meter are highly cohesive. Because the data can be processed automatically, the host computer can output standard data, and the system has strong adaptability. There is no need to reprogram the computer when replacing the instrument, and this technology can also be used for other types of simulators. This type of control system uses the original instrument of the aircraft and adds a single-chip microcomputer drive circuit, which is controlled by the single-chip microcomputer software. The indication error of the instrument is corrected by the driver software carried by the meter, and the required error is generated by the single-chip microcomputer software. The fault of the instrument can be simulated, and a response is generated after receiving the fault code. The control system is relatively mature at the electrical structure level and the control logic level, but at the physical structure level, it is generally an integrated installation structure, which cannot be mobile and portable. Summary of the invention

[0004] The technical problem to be solved by the utility model is that the AC synchronizer follower instrument control system based on the single chip microcomputer cannot be mobile and portable.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] An AC synchronizer follower instrument control system comprises a suitcase, an upper cover, a handle, a box body, a lock, a screen, a control panel, a status light, a speaker, a PCB board, an interface, a threading hole, a power button, a control button, a placement slot, and a wireless module; the lower end of the upper cover is rotatably connected to the rear end of the suitcase, the handle is fixedly installed on the front end of the suitcase, a double box body is fixedly installed on the front side of the upper cover, a box cover is provided on the first box body, a lock is installed between the box cover and the first box body, a screen and a control panel are fixedly installed on the second box body, and a single chip is provided in the suitcase. The suitcase comprises a computer, a PCB board of the single-chip microcomputer is fixed in the suitcase, an interface is arranged on the PCB board, a threading hole is arranged on the side of the suitcase, the threading hole is kept outside the interface, a power button and a control button are respectively arranged in the suitcase, the power button is connected to the power supply circuit of the PCB board, the control button is electrically connected to the PCB board, a status light and a speaker are arranged on the second box body, the speaker, the status light, the control panel and the screen are electrically connected to the PCB board respectively, a wireless module is arranged on the outer side of the upper cover, the wireless module is electrically connected to the PCB board, and a plurality of placement slots are arranged in the suitcase.

[0007] Preferably, the lower end of the upper cover is rotatably connected to the rear end of the suitcase by a damping hinge.

[0008] Preferably, elastic straps are provided on both sides of the upper end of the placement slot.

[0009] Preferably, a battery box is provided on the bottom side of the suitcase, and a box cover is provided on the bottom side of the battery box.

[0010] Preferably, a hanging ring is provided on the upper side of the upper cover, and a hook is provided on the front side of the suitcase, and when the upper cover is closed, the hanging ring and the hook are fixed to each other.

[0011] Preferably, a slot is provided in the suitcase, the PCB board is located in the slot, and when the upper cover is closed, the second box body falls into the slot.

[0012] Preferably, a plurality of cushion blocks are provided on the bottom side of the suitcase, the rear side of the suitcase and the underside of the upper cover.

[0013] In the structure of the utility model, the suitcase and the upper cover form the outer contour of the utility model, and the utility model can be carried by the handle, thereby achieving mobility and portability. The first box body can be used as a storage space for internal tools such as spare batteries, and the lock can lock the first box body. The second box body is used as a wiring box and installation position for modules such as screens and control panels. The PCB board is provided with an interface to which an external communication cable can be connected, and the threading hole ensures that the communication cable enters and exits the suitcase. The power button controls the power supply of the utility model. The control button and the control panel are used to input commands, and the screen, status light and speaker are used to output information. The placement slot can play a placement role. The wireless module is a wireless communication module, which is installed on the outside of the upper cover and can communicate wirelessly with the instrument to transmit commands and information.

[0014] The utility model discloses an AC synchronizer follower instrument control system. The system is mounted in a portable handheld device and adopts an integrated installation structure. While achieving mobility and portability, it establishes wireless communication with the controlled instrument to achieve the purpose of remote control. The utility model has a compact structure, is easy to carry, and has significant technical progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the first entity structure diagram of the utility model;

[0016] Figure 2 It is the second entity structure diagram of the utility model;

[0017] Figure 3 This is the third entity structure diagram of the utility model;

[0018] Figure 4 It is the fourth entity structure diagram of the utility model;

[0019] Figure 5 It is the fifth entity structure diagram of the utility model;

[0020] Figure 6 This is the sixth entity structure diagram of the utility model;

[0021] Figure 7 It is a circuit schematic diagram of the utility model;

[0022] Figure 8 It is a structural diagram of the PCB board of the single-chip microcomputer in the utility model;

[0023] Fig. 9 It is a circuit diagram of the AC synchronizer follow-up system in the utility model;

[0024] Fig.10 This is a DC magnetoelectric instrument driving circuit diagram in the utility model;

[0025] in:

[0026] 1. Suitcase 2. Upper cover 3. Handle 4. Box body

[0027] 5. Lock 6. Screen 7. Control panel 8. Status light

[0028] 9. Speaker 10. PCB board 11. Interface 12. Threading hole

[0029] 13. Power button 14. Control button 15. Placement slot 16. Wireless module. DETAILED DESCRIPTION

[0030] The specific implementation methods of the present invention will be described in detail below. In order to avoid too many unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meanings as those generally understood by technicians in the field to which the present invention belongs.

[0031] Example 1

[0032] An AC synchronizer follow-up instrument control system, see Figures 1 to 10, including a suitcase 1, an upper cover 2, a handle 3, a box body 4, a lock 5, a screen 6, a control panel 7, a status light 8, a speaker 9, a PCB board 10, an interface 11, a threading hole 12, a power button 13, a control button 14, a placement slot 15, and a wireless module 16; the lower end of the upper cover 2 is rotatably connected to the rear end of the suitcase 1, the handle 3 is fixedly installed on the front end of the suitcase 1, a double box body 4 is fixedly installed on the front side of the upper cover 2, a box cover is provided on the first box body 4, a lock 5 is installed between the box cover and the first box body 4, a screen 6 and a control panel 7 are fixedly installed on the second box body 4, a single-chip microcomputer is provided in the suitcase 1, and a PCB board 1 of the single-chip microcomputer 0 is fixed in the suitcase 1, an interface 11 is provided on the PCB board 10, a threading hole 12 is provided on the side of the suitcase 1, and the threading hole 12 is kept outside the interface 11, a power button 13 and a control button 14 are respectively provided in the suitcase 1, the power button 13 is connected to the power supply circuit of the PCB board 10, and the control button 14 is electrically connected to the PCB board 10, a status light 8 and a speaker 9 are provided on the second box body 4, and the speaker 9, the status light 8, the control panel 7, and the screen 6 are electrically connected to the PCB board 10, and a wireless module 16 is provided on the outside of the upper cover 2, and the wireless module 16 is electrically connected to the PCB board 10, and a plurality of placement slots 15 are provided in the suitcase 1. The suitcase 1 and the upper cover 2 form the outer contour of the utility model, and can be carried by hand through the handle 3, so as to achieve mobility and portability. The first box body 4 can be used as a storage space for internal tools such as spare batteries, and the lock 5 can lock the first box body 4. The second box body 4 is used as a wiring box and installation position for modules such as the screen 6 and the control panel 7. The PCB board 10 is provided with an interface 11, which can be connected to an external communication cable, and the threading hole 12 ensures that the communication cable enters and exits the suitcase 1. The power button 13 controls the power supply of the utility model. The control button 14 and the control panel 7 are used to input instructions, and the screen 6, the status light 8 and the speaker 9 are used to output information. The placement slot 15 can play a placement role. The wireless module 16 is a wireless communication module, which is installed on the outside of the upper cover 2 and can communicate wirelessly with the instrument to transmit instructions and information.

[0033] Example 2

[0034] An AC synchronizer follow-up instrument control system, see Figures 1 to 10, including a suitcase 1, an upper cover 2, a handle 3, a box body 4, a lock 5, a screen 6, a control panel 7, a status light 8, a speaker 9, a PCB board 10, an interface 11, a threading hole 12, a power button 13, a control button 14, a placement slot 15, and a wireless module 16; the lower end of the upper cover 2 is rotatably connected to the rear end of the suitcase 1, the handle 3 is fixedly installed on the front end of the suitcase 1, a double box body 4 is fixedly installed on the front side of the upper cover 2, a box cover is provided on the first box body 4, a lock 5 is installed between the box cover and the first box body 4, a screen 6 and a control panel 7 are fixedly installed on the second box body 4, a single-chip microcomputer is provided in the suitcase 1, and a PCB board 1 of the single-chip microcomputer 0 is fixed in the suitcase 1, an interface 11 is provided on the PCB board 10, a threading hole 12 is provided on the side of the suitcase 1, and the threading hole 12 is kept outside the interface 11, a power button 13 and a control button 14 are respectively provided in the suitcase 1, the power button 13 is connected to the power supply circuit of the PCB board 10, and the control button 14 is electrically connected to the PCB board 10, a status light 8 and a speaker 9 are provided on the second box body 4, and the speaker 9, the status light 8, the control panel 7, and the screen 6 are electrically connected to the PCB board 10, a wireless module 16 is provided on the outside of the upper cover 2, and the wireless module 16 is electrically connected to the PCB board 10, and a plurality of placement slots 15 are provided in the suitcase 1. Among them, the lower end of the upper cover 2 is rotatably connected to the rear end of the suitcase 1 by a damping hinge. Elastic straps are provided on both sides of the upper end of the placement slot 15. A battery box is provided on the bottom side of the suitcase 1, and a box cover is provided on the bottom side of the battery box. A hanging ring is provided on the upper side of the upper cover 2, and a hook is provided on the front side of the suitcase 1. When the upper cover 2 is closed, the hanging ring and the hook are fixed to each other. A slot is provided in the suitcase 1, and the PCB board 10 is located in the slot. When the upper cover 2 is closed, the second box body falls into the slot. A plurality of pads are provided on the bottom side of the suitcase 1, the rear side of the suitcase 1, and the lower side of the upper cover 2.

[0035] 1. Instrument functions and technical indicators

[0036] The heading position indicator instrument functions in the flight simulator as follows:

[0037] a. Indicate the given heading of the aircraft;

[0038] b. Indicate the actual heading of the aircraft;

[0039] c. Indicates the azimuth of the aircraft’s radio navigation station or the aircraft’s drift angle.

[0040] The technical specifications of the heading position indicator instrument are as follows:

[0041] a. Working mode: Computer controlled instrument.

[0042] b. Communication method: RS485 bus.

[0043] c. Power supply voltage: +27V DC, single-phase 36V400HZ AC.

[0044] d. Driving accuracy: 10 digits.

[0045] e. Indication error: ±0.25°.

[0046] f. Follow-up speed: greater than 20° / second.

[0047] g. Power consumption: +27V not more than 30W. 36V not more than 30W.

[0048] 2. Composition of the heading position indicator table

[0049] The heading position indicator consists of a real instrument and connecting cables, a computer control panel and a field bus connecting cable. The hub establishes a connection with the host computer through the RS485 bus, receives data sent by the host computer, and drives the instrument to make corresponding indications after address analysis and processing.

[0050] The heading position indicator instrument consists of the following parts;

[0051] a. 3 synchronizer follow-up systems;

[0052] b. 1 magneto-electric instrument landing indicator;

[0053] c. 2 magneto-electric instrument fault indicator signs;

[0054] d. 1 knob;

[0055] Heading position indicator instrument, the circuit board consists of the following systems:

[0056] a. Single chip microcomputer system, RS485 serial bus;

[0057] b. 24V and 5V regulated power supplies;

[0058] c. 3 AC motor drive systems using single chip microcomputer for angle feedback control and photoelectric coupler;

[0059] d. A motor drive system with speed controlled by a single chip microcomputer;

[0060] e. Magnetoelectric instrument drive circuit directly controlled by 3 single-chip microcomputers;

[0061] f. A +27V switch controlled by a single chip microcomputer outputs to the relay;

[0062] 3. Key points of technical design.

[0063] 3.1 AC synchronizer follow-up system

[0064] The single-chip microcomputer generates corresponding AC or PWM DC analog signal output by controlling the input and output state of the I / O output pin, high level, low level, high output impedance, and the time of outputting high level, low level, and high output impedance state. The computer's D / A conversion is completed at one time. The PWM output directly controls the rotation of the AC servo motor through the photoelectric coupler.

[0065] The synchronizer is excited by sending square wave pulses through the I / O pin of the single-chip microcomputer. Without passing through the phase-sensitive rectifier and AC amplifier, the A / D pin of the single-chip microcomputer directly performs A / D conversion on the synchronizer output, and the amplifier inside the command driving instrument drives the instrument indication.

[0066] 3.2 DC magnetoelectric instrument

[0067] The DC magnetoelectric instrument generates PWM DC analog signal output by the single chip microcomputer through controlling the I / O output pin, completing the D / A conversion of the computer at one time.

[0068] 4. Instrument software requirements analysis and design points

[0069] 4.1 Software Composition and Requirements

[0070] The software consists of the following modules:

[0071] a. Software operation control main program;

[0072] b. Communication and data interface module;

[0073] c. Software login module;

[0074] d. Drive synchronizer follow-up system module;

[0075] e. PWM output control module;

[0076] f. Switch input and output module;

[0077] g. Analog sampling input module;

[0078] The software is programmed using single-chip machine language using intelligent instrument technology.

[0079] 4.2 Communication and data interface module

[0080] This module is responsible for data exchange between the single-chip microcomputer and the host computer through the RS485 interface. It works in the interrupt state. The single-chip microcomputer receives the data packet and then sends back the data packet according to the control requirements sent by the host computer.

[0081] 4.3 Software Login Module

[0082] This module is responsible for providing the name and control requirements of the instrument to the main control computer when it starts working. After receiving the login command from the main control computer, the single-chip microcomputer activates the login software and starts the login work. The software sends the login data to the main control computer as agreed. The production date, manufacturer, serial number, function, drive mode, and a series of attribute data of the instrument are recorded in the single-chip microcomputer as login data. When the lower 4 bits of the control word are 1H (login computer system), the single-chip microcomputer returns the login information. Each piece of information and each package is 128 ASC codes. The order of the returned information is as follows:

[0083] Sequential return information

[0084] 0-15 Instrument name;

[0085] 16-31 Instrument name;

[0086] 32-39 production date;

[0087] 40-47 Manufacturer number;

[0088] 48-63 drivers;

[0089] 64-127 Other notes.

[0090] 4.4 Synchronizer follow-up system driver

[0091] The single-chip microcomputer generates corresponding AC or PWM DC analog signal output by controlling the input and output state of the I / O output pin, high level, low level, high output impedance, and the time of outputting high level, low level, and high output impedance state. The D / A conversion of the computer is completed at one time. The PWM output is sent to the instrument synchronizer through the AC amplifier, and the instrument is driven by the built-in amplifier in the meter.

[0092] The synchronizer is excited by sending square wave pulses through the I / O pin of the single-chip microcomputer. Without passing through the phase-sensitive rectifier and AC amplifier, the A / D pin of the single-chip microcomputer directly performs A / D conversion on the synchronizer output, and the amplifier inside the command driving instrument drives the instrument indication.

[0093] The single-chip microcomputer controls according to the error, determines the angle signal of the synchronizer, and controls the operation of the follow-up system. While controlling, the single-chip microcomputer learns and evaluates the control effect of the system, and modifies the control law to ensure a favorable control effect.

[0094] 4.5 Software operation control main program

[0095] The software operation control main program is the platform for all programs of the microcontroller to run, and is responsible for coordinating and managing the real-time operation of all program modules. The main control program design requirements are as follows:

[0096] a. Avoid using interrupts as much as possible, or have only one interrupt source, and use fewer registers to save interrupt time.

[0097] b. The single-chip microcomputer system should use the same program as much as possible.

[0098] c. Various functions should be modularized to facilitate expansion and change.

[0099] d. The program should be able to recover automatically after being disturbed or misoperated.

[0100] e. There should be fault tolerance for input data.

[0101] f. Make the modules work in straight series mode as much as possible to facilitate rearrangement of series connection.

[0102] g. Except for the main program, statement nesting and looping are not allowed, and the program is executed monotonically downward.

[0103] h. The execution results of a module should preferably have no correlation with the execution time and results of other modules, or have a weak correlation.

[0104] i. Before compiling each MCU program, standardized learning should be carried out to familiarize yourself with the program features.

[0105] j. The function and effect of each statement in the program should be described.

[0106] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of application of the present invention shall be included in the protection scope of the present invention.

Claims

1. An AC synchronizer follower instrument control system, characterized in that: The suitcase comprises a suitcase (1), an upper cover (2), a handle (3), a box body (4), a lock (5), a screen (6), a control panel (7), a status light (8), a speaker (9), a PCB board (10), an interface (11), a threading hole (12), a power button (13), a control button (14), a placement slot (15), and a wireless module (16); the lower end of the upper cover (2) is rotatably connected to the rear end of the suitcase (1), the handle (3) is fixedly mounted on the front end of the suitcase (1), a double box body (4) is fixedly mounted on the front side of the upper cover (2), a box cover is arranged on the first box body (4), a lock (5) is installed between the box cover and the first box body (4), a screen (6) and a control panel (7) are fixedly mounted on the second box body (4), a single chip microcomputer is arranged in the suitcase (1), and a PCB board (16) of the single chip microcomputer is arranged on the second box body (4). The second box body (4) is fixed in the suitcase (1), an interface (11) is provided on the PCB board (10), a threading hole (12) is provided on the side of the suitcase (1), and the threading hole (12) is maintained outside the interface (11), a power button (13) and a control button (14) are respectively provided in the suitcase (1), the power button (13) is connected to the power supply circuit of the PCB board (10), and the control button (14) is electrically connected to the PCB board (10), a status light (8) and a speaker (9) are provided on the second box body (4), and the speaker (9), the status light (8), the control panel (7), and the screen (6) are respectively electrically connected to the PCB board (10), a wireless module (16) is provided on the outside of the upper cover (2), and the wireless module (16) is electrically connected to the PCB board (10), and a plurality of placement slots (15) are provided in the suitcase (1).

2. The AC synchronizer follower instrument control system according to claim 1, characterized in that: The lower end of the upper cover (2) is rotatably connected to the rear end of the suitcase (1) via a damping hinge.

3. The AC synchronizer follower instrument control system according to claim 1, characterized in that: Elastic binding bands are arranged on both sides of the upper end of the placement groove (15).

4. The AC synchronizer follower instrument control system according to claim 1, characterized in that: A battery box is provided on the bottom side of the suitcase (1), and a box cover is provided on the bottom side of the battery box.

5. The AC synchronizer follower instrument control system according to claim 1, characterized in that: A hanging ring is provided on the upper side of the upper cover (2), and a hook is provided on the front side of the suitcase (1); when the upper cover (2) is closed, the hanging ring and the hook are fixed to each other.

6. The AC synchronizer follower instrument control system according to claim 1, characterized in that: A slot is provided in the suitcase (1), a PCB board (10) is located in the slot, and when the upper cover (2) is closed, the second box falls into the slot.

7. The AC synchronizer follower instrument control system according to claim 1, characterized in that: A plurality of cushion blocks are provided on the bottom side of the suitcase (1), the rear side of the suitcase (1) and the lower side of the upper cover (2).

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