A method and control system for remotely controlling a radar cursor

Abstract

The present invention provides a method and a control system for remotely controlling a radar cursor to solve the technical problems of difficult control of trackball remote control and synchronous display of radar cursor during the modification and design of old radars. A first interface is established at the remote control end, making the first interface the same as the actual radar display interface. A rectangular coordinate system is established on the first interface, and the rectangular coordinate system on the first interface corresponds to the second interface. According to the movement requirements of the cursor on the second interface, the cursor is correspondingly moved on the first interface. The number of square waves of the left-right axis movement and the number of square waves of the up-down axis movement corresponding to the cursor movement on the second interface are calculated. At the same time, the left-right axis movement direction and the up-down axis movement direction are determined. An instruction containing the number information of the square waves of the left-right axis movement, the number information of the square waves of the up-down axis movement, the left-right axis movement direction information, and the up-down axis movement direction information is sent from the remote control end to the radar cabinet, making the cursor on the second interface consistent with that on the first interface.

Description

Technical Field

[0001] The present invention belongs to the method and control system for remote control of a cursor, and particularly relates to a method and control system for remote control of a radar cursor. Background Art

[0002] In recent years, with the rapid emergence of advanced radars, a large number of old radars are facing retirement and scrapping. By improving and designing the old radars, remote control of the old radars can be realized, enabling them to be applied to multiple scenarios such as actual combat electronic countermeasures, non-explosive target testing evaluation of missiles (telemetered missiles), live-fire target testing evaluation, missile performance evaluation, and the reliability of the warhead-missile coordination performance, radar decoys, etc., and effectively reducing the costs of actual combat training and live-fire target testing of advanced radars, improving the utilization rate of old radars, and providing strong guarantees for aspects such as combat readiness, training, and weapon equipment research and development. However, in the process of modifying and designing old radars, technical problems such as remote control of a trackball and difficult control of synchronous display of a radar cursor are usually faced. Summary of the Invention

[0003] In order to solve the technical problems of difficult remote control of a trackball and difficult control of synchronous display of a radar cursor in the process of modifying and designing old radars, the present invention provides a method and control system for remote control of a radar cursor.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for remote control of a radar cursor, characterized in that it includes the following steps:

[0006] S1, establish a first interface at the remote control end, making the first interface the same as the second interface, where the second interface is the actual radar display interface;

[0007] S2, establish a plane rectangular coordinate system on the first interface, making the origin of the plane rectangular coordinate system on the first interface correspond to the polar coordinate pole coordinates of the second interface, and the positive half-axis of the X-axis of the plane rectangular coordinate system correspond to the positive half-axis of the polar axis in the second interface;

[0008] S3, according to the movement requirement of the cursor on the second interface, move the cursor correspondingly on the first interface, calculate the number of square waves of the left-right axis movement and the number of square waves of the up-down axis movement corresponding to the cursor movement on the second interface through the coordinates of the cursor before and after movement on the first interface, and at the same time, determine the left-right axis movement direction and the up-down axis movement direction;

[0009] S4, send an instruction containing the information of the number of square waves of the left-right axis movement, the information of the number of square waves of the up-down axis movement, the left-right axis movement direction information, and the up-down axis movement direction information from the remote control end to the radar cabinet of the radar local control end, making the cursor on the second interface consistent with the cursor position moved according to the control requirement on the first interface.

[0010] Further, step S3 is specifically as follows:

[0011] S3.1. Assume that the movement requirement of the cursor on the second interface is to move from point A(ρ1, θ1) to point B(ρ2, θ2). Then, on the first interface, move the cursor from point A'(ρ1sinθ1, ρ1cosθ1) to point B'(ρ2sinθ2, ρ2cosθ2);

[0012] S3.2. Calculate the number of square wave pulses a corresponding to the left - right axis movement of the cursor on the second interface through the following formula:

[0013] a = n|ρ1sinθ1 - ρ2sinθ2| / d

[0014] where n is the number of square wave pulses accumulated when the cursor moves from the left - most end to the right - most end of the second interface, and d is the diameter of the second interface;

[0015] Calculate the number of square wave pulses b corresponding to the up - down axis movement of the cursor on the second interface through the following formula:

[0016] b = n|ρ1cosθ1 - ρ2cosθ2| / d

[0017] S3.3. If ρ1sinθ1 - ρ2sinθ2 > 0, the movement direction of the left - right axis is positive; otherwise, the movement direction of the left - right axis is negative. If ρ1cosθ1 - ρ2cosθ2 > 0, the movement direction of the up - down axis is positive; otherwise, the movement direction of the up - down axis is negative.

[0018] Further, in step S4, the instruction containing the number of square wave pulses information of the left - right axis movement, the number of square wave pulses information of the up - down axis movement, the left - right axis movement direction flag, and the up - down axis movement direction flag is sent from the remote control terminal to the radar cabinet of the radar local control terminal. Specifically, it is transmitted through the host computer located at the remote control terminal, the first switch, the second switch located at the local control terminal, and the control unit. The host computer, the first switch, the second switch, and the control unit are connected in sequence;

[0019] The instruction is sent from the host computer, through the first switch, the second switch, and the control unit connected in sequence, to the radar cabinet of the local control terminal;

[0020] The first switch is used to convert the frame - format data packet containing the number of square wave pulses information of the left - right axis movement, the number of square wave pulses information of the up - down axis movement, the left - right axis movement direction information, and the up - down axis movement direction information output by the host computer into an optical signal;

[0021] The second switch is used to convert the optical signal output by the first switch into an electrical signal and send it to the control unit;

[0022] The control unit is connected between the trackball of the radar local control end and the radar cabinet, and is used for analyzing the electrical signals output by the second switch, generating and sending a left - right axis PWM square wave, b up - down axis PWM square waves, a left - right axis direction flag, and an up - down axis direction flag corresponding to controlling the movement of the cursor on the second interface to the radar control cabinet.

[0023] Further, in step S3, the corresponding movement of the cursor on the first interface is specifically to move the cursor by a mouse or a trackball.

[0024] Further, during the execution of steps S3 and S4, step S3 - 4 is further included, which is to determine whether the trackball of the radar local control end directly controls the cursor position on the second interface; if so, steps S3 and S4 are stopped from being executed until step S3 - 4 is completed, otherwise, steps S3 and S4 are continued to be executed.

[0025] Further, the host computer, the first switch, the second switch, and the control unit are sequentially interconnected, and are used for when step S3 - 4 is executed, the corresponding information of the cursor position on the second interface is sequentially fed back to the host computer through the control unit, the second switch, and the first switch.

[0026] Further, a switching unit is provided in the control unit; the switching unit is used for switching whether the control unit is connected to the radar cabinet of the local control end.

[0027] The present invention also provides a radar cursor remote control system for implementing the above - mentioned radar cursor remote control method, which is characterized in that it includes a host computer and a first switch located at the remote control end, and a second switch and a control unit located at the radar local control end;

[0028] The host computer, the first switch, the second switch, and the control unit are sequentially connected; a first interface identical to the second interface is provided on the host computer, and the second interface is the actual radar display interface; the host computer is connected with a cursor movement component for adjusting the cursor position on the first interface; the first switch is used for converting the electrical signals corresponding to the cursor position on the first interface output by the host computer into optical signals, the second switch is used for converting the optical signals output by the first switch into electrical signals and sending them to the control unit, and the control unit is connected between the radar trackball and the radar cabinet of the radar local control end, and controls the cursor on the second interface to move correspondingly according to the cursor position on the first interface by generating square waves and direction flags;

[0029] A plane rectangular coordinate system is established on the first interface, the origin of the plane rectangular coordinate system on the first interface corresponds to the polar coordinate pole coordinates of the second interface, and the positive half - axis of the X - axis of the plane rectangular coordinate system on the first interface corresponds to the positive half - axis of the polar axis in the second interface.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the radar cursor remote control method of the present invention, a first interface is established at the remote control end. The first interface is the same as the actual radar display interface. A rectangular coordinate system is established on the first interface, corresponding to the polar coordinate system on the second interface. The distance between two points before and after the cursor moves on the second interface can be reflected as the number of square waves. Move the cursor on the first interface, calculate the horizontal distance and vertical distance between the two points before and after the movement, and convert them into the number of square waves respectively. Determine the cursor movement direction according to the positive and negative of the difference in abscissa and ordinate between the two points before and after the movement on the first interface. After sending this information to the local control end, the cursor on the second interface can complete synchronous movement. Without changing the original radar, the present invention realizes the method of remotely controlling the cursor on the second interface at the remote control end.

[0032] 2. Especially for actual combat training as a target or evaluating the combat performance of anti-radiation missiles, etc., when it is prohibited for personnel to operate on site and it is impossible to control the radar cursor at the local end, the radar cursor remote control method of the present invention can be adopted, which will not affect the original local functions and original state of the radar.

[0033] 3. When remotely and locally controlling the second interface in the present invention, the priority of local control is higher than that of remote control, ensuring that the local end can participate in the control emergently while realizing remote control, with higher safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the application of the radar cursor remote control method of the present invention;

[0035] Figure 2 Schematic diagram of the first interface in the present invention;

[0036] Figure 3 Coordinate schematic diagram on the second interface;

[0037] Figure 4 Coordinate schematic diagram on the first interface.

[0038] Wherein: 1 - host computer, 2 - first switch, 3 - second switch, 4 - control unit, 5 - trackball, 6 - radar cabinet, 7 - optical fiber. DETAILED DESCRIPTION OF THE INVENTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] During the use of some radars, it is necessary to locally control the movement of the radar cursor on the radar display interface. Especially when conducting live-fire training as a target or evaluating the combat performance of anti-radiation missiles, since personnel are prohibited from on-site operation, it is necessary to remotely control the radar cursor. At the same time, it cannot affect the original functions of the radar locally. The present invention realizes the local operation and remote control operation of the radar cursor by adding a control system between the radar cabinet and the radar trackball. At the same time, it does not affect the current mechanical state and does not change the original state of the radar structure.

[0041] As Figure 1 shown, when the radar cursor remote control method of the present invention is applied, it includes a host computer 1 and a first switch 2 at the remote control end, and a second switch 3 and a control unit 4 at the local end.

[0042] The existing local radar cursor is controlled by a trackball 5. The composition and working principle of the trackball 5 are as follows: The trackball 5 is composed of a sphere, left and right side rollers, up and down side rollers, a grating disk, a photoelectric detection device, and a base, etc. Rollers are installed on the left and right sides and the up and down sides of the trackball 5, and a grating disk and a photoelectric detection device are provided on the rollers. When the trackball 5 is rotated, the center position of the trackball 5 does not move. By touching the trackball 5 to rotate it, the rollers are driven to rotate, so that the photoelectric detection device outputs three groups of square wave pulses A, B, and Z phase. Among them, the phase difference between the two groups of pulses A and B is 90°. The rotation direction can be judged by the sequence of the phases. The number of pulses represents the displacement size, and the pulse speed represents the cursor movement speed. The Z phase is used for base point positioning.

[0043] Through the analysis of the composition and working principle of the trackball 5, in order to maintain the integrity of the original radar equipment, the present invention can connect the control unit 4 to the original circuit to complete pulse and direction control, and achieve the purpose of remote and local switching control of the radar cursor.

[0044] The host computer 1 located at the remote control end sends a data packet in the frame format composed of pulses and moving directions according to the communication protocol, and sends it to the first switch 2 through the network port. The first switch 2 converts the Ethernet electrical signal into an optical signal and transmits it over a long distance through the optical fiber 7 to the local control end of the radar. The second switch 3 at the local control end converts the optical fiber 7 signal into an Ethernet electrical signal and then transmits it to the control unit 4. After receiving the data packet, the control unit 4 analyzes and sends square wave pulses and direction flags to the radar cabinet. The control unit 4 can use a MUC control box.

[0045] The software of the host computer 1 at the remote control end is designed using software such as C++ or Labview. When performing remote control, a trackball or a mouse can be connected to the host computer 1, and by rotating the trackball or clicking the mouse, the position of the cursor on the first interface is moved, replacing the movement control of the radar cursor by the radar-end trackball 5. The specific control method of the present invention is as follows:

[0046] Establish at the remote control end Figure 2 The first interface shown, making the first interface the same as the second interface. Among them, the second interface is the actual radar display interface. A plane rectangular coordinate system is established on the first interface, making the origin of the plane rectangular coordinate system on the first interface correspond to the polar coordinate pole coordinates of the second interface, and the positive half-axis of the X-axis of the plane rectangular coordinate system corresponds to the positive half-axis of the polar axis in the second interface. The original radar display is a deflection coil cathode ray tube display. Design the first interface on the host computer 1 interface at the remote control end to simulate the radar display interface (the second interface) of the original radar. By actually testing the output signal of the radar trackball 5, it is known that when the trackball 5 cursor moves from the leftmost end to the rightmost end of the second interface, a total of 2026 square wave pulses are generated. Therefore, the diameter of the radar display interface of the host computer 1 is set to d. The coordinate points of the actual radar display are in polar coordinate form, with the pole O as the origin of the plane coordinate system, that is, the center of the circle as the pole. The diameter d can be divided into 2026 equal parts along both the horizontal direction and the vertical direction of the polar axis of the second interface. In the plane rectangular coordinate system of the first interface, the positive half-axis of the X-axis corresponds to the polar axis OX of the second interface, and the diameter of the first interface is also d. With the center of the circle as the coordinate origin, the first interface is drawn on the host computer 1. As Figure 3 and Figure 4 shown, the coordinate points on the second interface are in polar coordinate form. Converting the polar coordinate form of the first interface and the second interface of the host computer 1 into rectangular coordinate form can realize the one-to-one correspondence of the coordinate points between the second interface and the first interface.

[0047] According to the movement requirements of the cursor on the second interface, move the cursor correspondingly on the first interface. Calculate the number of square waves of the left - right axis movement and the number of square waves of the up - down axis movement corresponding to the cursor movement on the second interface through the coordinates of the cursor before and after movement on the first interface. At the same time, determine the left - right axis movement direction and the up - down axis movement direction. Send an instruction containing the number of square waves of the left - right axis movement information, the number of square waves of the up - down axis movement information, the left - right axis movement direction information, and the up - down axis movement direction information from the remote control terminal to the radar cabinet of the radar local control terminal, so that the cursor on the second interface is consistent with the position of the cursor moved according to the control requirements on the first interface.

[0048] Such as Figure 3 and Figure 4 , the polar coordinate value of point A is A(ρ1, θ1), which is converted to A′(ρ1sinθ1, ρ1cosθ1) on the first interface. If in the initial state of the radar system, the radar cursor is at the pole on the second interface, corresponding to the cursor at the origin (0, 0) on the first interface. Assume that it is necessary to move the cursor from the pole to point A on the second interface, and move the cursor to point A′ on the first interface. The coordinate point on the first interface changes from displaying the (0, 0) point to displaying (ρ1sinθ1, ρ1cosθ1). The cursor moves from the origin to point A′. The coordinate value in the X - axis direction increases by ρ1sinθ1, and the direction is positive. The coordinate value in the Y - axis direction increases by ρ1cosθ, and the direction is positive. At this time, let the number of square waves corresponding to the left - right axis movement of the radar trackball 5 for point A be a, and from the formula it can be obtained that Similarly, calculate that the number of square waves corresponding to the up - down axis movement of the radar trackball 5 for point A is

[0049] The host computer 1 sends the number of square waves a corresponding to the left - right axis movement of the trackball 5, the positive direction flag of the left - right axis of the trackball 5, the number of square waves b corresponding to the up - down axis movement of the trackball 5, and the positive direction flag of the up - down axis of the trackball 5 to the control unit 4. After receiving the data packet with the corresponding frame format, the control unit 4 parses it, generates two groups of PWM square waves respectively used to control the corresponding up - down axis movement and left - right axis movement, as well as the direction flag to the radar cabinet, so that the cursor on the second interface moves.

[0050] When the cursor on the first interface continues to move to point B', the coordinate point of the cursor on the first interface changes from point A'(ρ1sinθ1, ρ1cosθ1) to B'(ρ2sinθ2, ρ2cosθ2). The coordinate value in the X-axis direction increases by ρ1sinθ1 - ρ2sinθ2, and the direction is positive. The Y-axis value decreases by ρ1cosθ1 - ρ2cosθ2, and the direction is negative. Through the above algorithm, the number of square waves in the left and right axis directions of point B can be calculated as n|ρ1sinθ1 - ρ2sinθ2| / d, and the left and right axis direction flag is positive. The number of square waves in the up and down axis directions of point B is n|ρ1cosθ1 - ρ2cosθ2| / d, and the up and down axis direction flag is negative. These data are sent to the control unit 4 in the format of a protocol frame. After receiving the data packet with the corresponding frame format, the control unit 4 parses it to generate two groups of PWM square waves and direction flags respectively for controlling the corresponding left and right axis movement and up and down axis movement, and sends them to the radar cabinet to realize the cursor movement of the radar display.

[0051] The cursor on the first interface can be moved by a mouse or a trackball.

[0052] The control unit 4 generally can adopt an MCU control box, which is composed of a power supply, an STM32F429 microprocessor, a trackball signal switching circuit, an MCU output trackball X-direction signal circuit, an MCU output trackball Y-direction signal circuit, and an Ethernet interface circuit, etc. The power supply is powered by DC - 5V and takes power from the cable connector of the radar trackball 5. The trackball signal switching circuit can realize the switching between remote control and local control by controlling the relay switching through the STM32F429 microprocessor. In the initial state, the radar trackball 5 is connected to the radar cabinet for local control. During remote control, the STM32F429 microprocessor controls the relay switching, and the GPIO of the STM32F429 microprocessor generates PWM square waves and direction flags to realize the remote control of the radar cursor.

[0053] In addition, multiple trackballs can be set at the local end of the radar, and correspondingly, multiple second interfaces are set at the local end of the radar. Each trackball is used to control the position of the cursor on each second interface. In this case, multiple first interfaces can be set on the host computer 1, corresponding to the second interfaces respectively.

[0054] Correspondingly, the present invention also provides a control system capable of implementing the above control method, including a host computer 1 and a first switch 2 at the remote control end, and a second switch 3 and a control unit 4 at the local control end of the radar.

[0055] The host computer 1, the first switch 2, the second switch 3, and the control unit 4 are connected in sequence. The host computer 1 is provided with a first interface identical to the second interface, and the second interface is the actual radar display interface. The host computer 1 is connected with a cursor movement component for adjusting the cursor position on the first interface. The first switch 2 is used to convert the electrical signal corresponding to the cursor position on the first interface output by the host computer 1 into an optical signal. The second switch 3 is used to convert the optical signal output by the first switch 2 into an electrical signal and send it to the control unit 4. The control unit 4 is connected between the radar trackball 5 and the radar cabinet 6 at the local control end of the radar. By generating a square wave and a direction flag, it controls the cursor on the second interface to move correspondingly according to the cursor position on the first interface. A plane rectangular coordinate system is established on the first interface, and the origin of the plane rectangular coordinate system on the first interface corresponds to the polar coordinate pole coordinates of the second interface, and the positive half-axis of the X-axis of the plane rectangular coordinate system on the first interface corresponds to the positive half-axis of the polar axis in the second interface.

[0056] The control unit 4 follows the principle that the local control priority is higher than the remote control priority during control. The local control actions and feedback results can also be updated to the first interface of the remote control end in real time through the control unit 4, the second switch 3, and the first switch 2 in sequence, enabling the remote control end to seamlessly take over the local control. If this function needs to be configured, the host computer 1, the first switch 2, the second switch 3, and the control unit 4 can be connected for two-way interaction. When directly controlling the cursor position on the second interface at the local control end of the radar, feedback information can be obtained on the host computer 1.

[0057] In the present invention, the cursor is moved on the first interface of the remote control end by clicking the mouse or rolling the trackball, and the cursor on the second interface of the local radar synchronously moves to the corresponding position. Through the remote control end, the position movement of the cursor on the second interface of the local radar can be accurately controlled.

[0058] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for remotely controlling a radar cursor, characterized in that, It includes the following steps: S1. Establish a first interface at the remote control end to make the first interface the same as the second interface, where the second interface is the actual radar display interface; S2. Establish a rectangular coordinate system on the first interface to make the origin of the rectangular coordinate system on the first interface correspond to the polar coordinate pole coordinates of the second interface, and the positive half-axis of the X-axis of the rectangular coordinate system correspond to the positive half-axis of the polar axis in the second interface; S3. According to the movement requirement of the cursor on the second interface, move the cursor correspondingly on the first interface. Calculate the number of square wave pulses of the left-right axis movement and the number of square wave pulses of the up-down axis movement corresponding to the cursor movement on the second interface through the coordinates of the cursor before and after movement on the first interface. At the same time, determine the left-right axis movement direction and the up-down axis movement direction; S4. Send an instruction containing the number of square wave pulses of the left-right axis movement information, the number of square wave pulses of the up-down axis movement information, the left-right axis movement direction information, and the up-down axis movement direction information from the remote control end to the radar cabinet (6) of the radar local control end, so that the cursor on the second interface is consistent with the position of the cursor moved according to the control requirement on the first interface.

2. The method for remotely controlling a radar cursor according to claim 1, wherein Step S3 is specifically: S3.

1. Assume that the movement requirement of the cursor on the second interface is to move from A(ρ1,θ1) to B(ρ2,θ2), then move the cursor on the first interface from A′(ρ1sinθ1,ρ1cosθ1) to B′(ρ2sinθ2,ρ2cosθ2); S3.

2. Calculate the number of square wave pulses a of the left-right axis movement corresponding to the cursor movement on the second interface through the following formula: a = n|ρ1sinθ1 - ρ2sinθ2| / d where n is the number of square wave pulses accumulated when the cursor moves from the leftmost end to the rightmost end of the second interface, and d is the diameter of the second interface; Calculate the number of square wave pulses b of the up-down axis movement corresponding to the cursor movement on the second interface through the following formula: b = n|ρ1cosθ1 - ρ2cosθ2| / d S3.

3. If ρ1sinθ1 - ρ2sinθ2 > 0, the left-right axis movement direction is positive, otherwise, the left-right axis movement direction is negative; if ρ1cosθ1 - ρ2cosθ2 > 0, the up-down axis movement direction is positive, otherwise, the up-down axis movement direction is negative.

3. The method for remotely controlling a radar cursor according to claim 2, wherein: In step S4, the instruction of sending the number of square wave pulses of the left-right axis movement information, the number of square wave pulses of the up-down axis movement information, the left-right axis movement direction flag, and the up-down axis movement direction flag from the remote control end to the radar cabinet (6) of the radar local control end is specifically transmitted through the host computer (1) and the first switch (2) located at the remote control end, and the second switch (3) and the control unit (4) located at the local control end. The host computer (1), the first switch (2), the second switch (3), and the control unit (4) are connected in sequence; The instruction is sent from the host computer (1) to the radar cabinet (6) of the local control end through the first switch (2), the second switch (3), and the control unit (4) connected in sequence; The first switch (2) is configured to convert the frame format data packet containing the number of square wave information for the left - right axis movement, the number of square wave information for the up - down axis movement, the left - right axis movement direction information, and the up - down axis movement direction information output by the host computer (1) into corresponding optical signals from electrical signals. The second switch (3) is configured to convert the optical signal output by the first switch (2) into an electrical signal and send it to the control unit (4). The control unit (4) is connected between the trackball (5) of the radar local control end and the radar cabinet (6), and is configured to analyze the electrical signal output by the second switch (3), generate and send a left - right axis PWM square waves, b up - down axis PWM square waves, the left - right axis direction flag, and the up - down axis direction flag corresponding to controlling the movement of the cursor on the second interface to the radar control cabinet.

4. The method for remotely controlling a radar cursor according to claim 3, characterized in that: In step S3, the corresponding movement of the cursor on the first interface is specifically achieved by moving the cursor with a mouse or the trackball (5).

5. The method for remotely controlling a radar cursor according to claim 4, wherein: During the execution of step S3 and step S4, there is also step S3 - 4, which determines whether the trackball (5) of the radar local control end directly controls the cursor position on the second interface; if so, stop executing step S3 and step S4 until step S3 - 4 is completed, otherwise, continue to execute step S3 and step S4.

6. The method for remotely controlling a radar cursor according to claim 5, wherein: The host computer (1), the first switch (2), the second switch (3), and the control unit (4) are connected in sequence for interaction. When step S3 - 4 is executed, the cursor position corresponding information on the second interface is fed back to the host computer (1) through the control unit (4), the second switch (3), and the first switch (2) in sequence.

7. The method for remotely controlling a radar cursor according to claim 6, characterized in that: A switching unit is provided in the control unit (4); the switching unit is configured to switch whether the control unit (4) is connected to the radar cabinet (6) of the local control end.

8. A radar cursor remote control system for implementing the radar cursor remote control method according to any one of claims 1 to 7, characterized in that: It includes a host computer (1) and a first switch (2) located at the remote control end, and a second switch (3) and a control unit (4) located at the radar local control end. The host computer (1), the first switch (2), the second switch (3), and the control unit (4) are connected in sequence; a first interface identical to the second interface is provided on the host computer (1), and the second interface is the actual radar display interface; the host computer (1) is connected to a cursor movement component for adjusting the cursor position on the first interface; the first switch (2) is configured to convert the electrical signal corresponding to the cursor position on the first interface output by the host computer (1) into an optical signal, the second switch (3) is configured to convert the optical signal output by the first switch (2) into an electrical signal and send it to the control unit (4), and the control unit (4) is connected between the radar trackball (5) and the radar cabinet (6) of the radar local control end, and controls the cursor on the second interface to move correspondingly according to the cursor position on the first interface by generating square waves and direction flags. A rectangular coordinate system is established on the first interface, the origin of the rectangular coordinate system on the first interface corresponds to the polar coordinate pole coordinates of the second interface, and the positive half - axis of the X - axis of the rectangular coordinate system on the first interface corresponds to the positive half - axis of the polar axis in the second interface.

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