CN104135616B

CN104135616B - A kind of wireless control system and control method for high-speed camera triggering

Info

Publication number: CN104135616B
Application number: CN201410360719.6A
Authority: CN
Inventors: 薛云朝; 孙倩华; 吴宏斌; 郭昱; 孔振民; 朱连波; 张亮; 吴洋
Original assignee: China Academy of Launch Vehicle Technology CALT; Beijing Aerospace Changzheng Aircraft Institute
Current assignee: China Academy of Launch Vehicle Technology CALT; Beijing Aerospace Changzheng Aircraft Institute
Priority date: 2014-07-25
Filing date: 2014-07-25
Publication date: 2017-07-07
Anticipated expiration: 2034-07-25
Also published as: CN104135616A

Abstract

The invention provides a kind of wireless control system and control method for high-speed camera triggering, the system includes single main website and N number of slave station.Main website is used to realize triggering control and status display, including operation and display module and the first signal processing module.Slave station is used to realize that triggering is performed and feedback states that each slave station to include a secondary signal processing module.During work, main website is placed on fixed position, and slave station is placed on testing ground, and high-speed camera is connected with slave station.Main website sends triggering model selection to slave station by the first signal processing module and triggering control selections are asked, and slave station is triggered or triggered reset to high-speed camera.The present invention can not only realize single channel triggering, synchronous triggering and the Time-delayed trigger function of high-speed camera, again can at a distance the triggering state of real-time monitoring high-speed camera with carry out triggering reset, substantially increase the use scope and performance of high-speed camera.

Description

Wireless control system and control method for triggering high-speed camera

Technical Field

The invention belongs to the technical field of missiles, and particularly relates to a wireless control system and a wireless control method for triggering a high-speed camera.

Background

In the process of weapon development, high-speed shooting is an indispensable means for obtaining the rotating speed, the attack angle, the acceleration, the target entering speed and the target exiting speed of a projectile. The high-speed camera shooting can capture the instantaneous state or all the processes of a high-speed moving object, record a large amount of accurate space-time information and provide reliable basis for researching the occurrence mechanism and the motion rule of the high-speed phenomenon. The trigger control of the high-speed camera is very important because the shooting frequency of the high-speed camera is high, the total shooting time is short, and the flying speed of the shot is high.

At present, the triggering of the digital high-speed camera mainly adopts a method of combining sound and visual inspection, and a shooting person needs to give a triggering signal according to the sound of a bomb and the visual inspection result within a certain distance range. Because the shooting personnel need to keep a short distance with the high-speed camera, the method is difficult to adapt to the short-distance shooting of the terminal point trajectory; for shooting the same action process by a plurality of cameras from different angles, the traditional triggering mode is still useless.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a wireless control system and a control method for high-speed camera triggering, so as to realize the functions of one-way triggering, synchronous triggering and delayed triggering, and simultaneously monitor the triggering state of the high-speed camera remotely and in real time, and trigger and reset the high-speed camera.

The technical scheme adopted by the invention for solving the technical problems comprises the following steps:

according to one aspect of the present invention there is provided a wireless control system for high speed camera triggering, the system comprising: the system comprises a single master station and N slave stations, wherein N is a positive integer greater than or equal to 1, the master station is used for realizing trigger control and state display and comprises an operation and display module and a first signal processing module; the slave stations realize trigger execution and feedback states, each slave station comprises a second signal processing module, and the second signal processing module is connected to the high-speed camera; and wherein the one or more of the one,

the operation and display module is used for: sending a network detection and signal strength test instruction to the first signal processing module, performing trigger mode selection and trigger control mode selection, and sending a corresponding instruction to the first signal processing module according to the selected trigger mode and trigger control mode, wherein the trigger mode comprises a one-way trigger mode, a synchronous trigger mode and a delay trigger mode, and the trigger control mode comprises trigger control and trigger reset control; and displaying various information returned by the first signal processing module in real time: and the operation and display module is also used for providing system help for obtaining the operation flow of the whole wireless control system;

after receiving the network detection instruction of the operation and display module, the first signal processing module sequentially sends a request of whether the slave station is on line to a second signal processing module of the N slave stations; when receiving a slave station online response returned by a second signal processing module in the slave station, adding a corresponding slave station into a slave station library, and sending online slave station information in the slave station library to the operation and display module for result display;

the first signal processing module receives a signal strength testing instruction of the operation and display module, and then sequentially sends a testing signal to the second signal processing module of each slave station in the slave station library, the second signal processing module in each slave station tests the signal strength of the received testing signal and returns the signal strength value obtained by testing to the first signal processing module, the first signal processing module transmits the signal strength value to the operation and display module for displaying, compares the signal strength value with a threshold value preset in the first signal processing module, and provides the comparison result for the operation and display module for displaying, and if the signal strength value is greater than or equal to the preset threshold value after comparison, the first signal processing module adds the corresponding slave station into a slave station communication list, transmitting the slave station information in the communicable slave station list to the operation and display module for displaying, and if the signal intensity value returned by the slave station is smaller than a preset threshold value, continuing to detect the signal intensity of the following slave stations until the signal intensity tests of all the slave stations are completed;

when a one-way trigger mode instruction that M is more than or equal to 1 and less than or equal to N is received when the Mth slave station of the operation and display module is triggered, the first signal processing module sends a request for waiting for triggering to a second signal processing module in the Mth slave station, and sends response information to the operation and display module for displaying after a ready response returned by the second signal processing module is received; when receiving a trigger control or trigger reset control instruction of the operation and display module, the first signal processing module sends a trigger or trigger reset request to a second signal processing module in the Mth slave station, the second signal processing module triggers or triggers reset control on the high-speed camera, the high-speed camera returns a trigger completion signal or trigger reset completion signal to the second signal processing module after completing the trigger or trigger reset, the second signal processing module codes and modulates the trigger completion signal or trigger reset completion signal and sends a trigger completion or trigger reset completion response to the first signal processing module, and the first signal processing module sends corresponding response information to the operation and display module for display;

when receiving a synchronous trigger mode instruction or a delay trigger mode instruction which is sent by the operation and display module and triggers a plurality of slave stations, the first signal processing module sequentially sends a request for waiting for triggering to a second signal processing module in the selected plurality of slave stations, and after sequentially receiving ready responses returned by the second signal processing modules in the slave stations, sends response information to the operation and display module for displaying; wherein,

in the case of the synchronous trigger mode, when a trigger control or trigger reset control instruction of the operation and display module is received again, said first signal processing module simultaneously sending a trigger or a request to trigger a reset to a second signal processing module of the plurality of secondary stations, the second signal processing module in the plurality of slave stations triggers or triggers and resets the corresponding high-speed cameras, the high-speed cameras return triggering completion signals or triggering and resetting completion signals to the second signal processing module after triggering or triggering and resetting is completed, the second signal processing module in each slave station codes and modulates the triggering completion signals or the triggering and resetting completion signals, sequentially sending a response of triggering completion or triggering reset completion to the first signal processing module, and sending corresponding response information to the operation and display module by the first signal processing module for displaying;

under the condition of a delay trigger mode, when a trigger control or trigger reset control instruction of the operation and display module is received, the first signal processing module simultaneously sends a trigger or trigger reset request to a second signal processing module in the plurality of slave stations, wherein when the trigger is executed, the second signal processing module in the plurality of slave stations triggers a corresponding high-speed camera according to a preset delay time interval, the high-speed camera returns a trigger completion signal to the second signal processing module in the corresponding slave station after the trigger is completed, the second signal processing module sends a trigger completion response to the first signal processing module after the trigger completion signal is coded and modulated, and the first signal processing module sends corresponding response information to the operation and display module for display; when the trigger reset is executed, the second signal processing modules in the multiple slave stations perform trigger reset control on the corresponding high-speed cameras, the high-speed cameras return trigger reset completion signals to the second signal processing modules in the corresponding slave stations after the trigger reset is completed, the second signal processing modules perform coding and modulation processing on the trigger reset completion signals and then send responses of the trigger reset completion to the first signal processing modules, and the first signal processing modules send corresponding response information to the operation and display modules for display.

Further, in the process that the first signal processing module executes the network detection instruction, after a request of whether the slave station is online is sent to a second signal processing module in one of the slave stations, if no response is received even if the preset waiting time is exceeded, the first signal processing module skips the slave station, continues to send the request of whether the slave station is online to the next slave station, and performs network detection of whether the slave station is online; and after the network detection of the N slave stations is executed, when a network detection instruction which is sent by the operation and display module and aims at the offline slave stations is received, the network detection of the slave stations is continued, the slave stations are added into the slave station library after the online responses of the slave stations returned by the second signal processing module in the slave stations are received, and meanwhile, the data information of the online slave stations in the slave station library is sent to the operation and display module to be displayed.

Further, in the process of executing the signal strength test instruction, if it is determined that the signal strength value returned by a certain slave station is smaller than the preset threshold value, the first signal processing module does not perform any processing on the slave station, and continues to perform the signal strength test on the next slave station; after the signal strength tests of all the slave stations are executed, if a signal strength test instruction for the slave station with the signal strength value not meeting the requirement sent by the operation and display module is received, the slave station continues to be tested for the signal strength until the signal strength value of the corresponding slave station is judged to meet the requirement of being more than or equal to a preset threshold value, the corresponding slave station is added into a communicable slave station list, and slave station information in the communicable slave station list is transmitted to the operation and display module to be displayed.

According to another aspect of the present invention, there is provided a control method for triggering a high-speed camera, including the steps of:

s1, network detection is carried out

The network detection method comprises the steps that a network detection instruction is sent to a first signal processing module through an operation and display module, the first signal processing module sends a request whether a No. 1 slave station is on line to a second signal processing module in the No. 1 slave station after receiving the instruction, the No. 1 slave station is added into a slave station library after receiving a No. 1 slave station on-line response returned by the second signal processing module in the No. 1 slave station, and data information of the on-line slave station in the slave station library is sent to the operation and display module to be displayed; by analogy, the first signal processing module sequentially executes network detection whether the No. 2-N slave station is on line or not, and sends on-line slave station information in the slave station library to the operation and display module for result display;

if one certain slave station is judged to be offline according to the online slave station information displayed by the operation and display module, the position of the corresponding slave station relative to the master station is adjusted, a network detection instruction for the offline slave station is sent to the first signal processing module through the operation and display module, and the first signal processing module executes network detection of the corresponding slave station until all the slave stations are judged to be online according to the online slave station information displayed by the operation and display module;

s2, carrying out signal strength test

Sending a signal strength test instruction to the first signal processing module through the operation and display module; after receiving the instruction, the first signal processing module sends a test signal to a second signal processing module in the No. 1 slave station in the slave station library, and the second signal processing module in the No. 1 slave station tests the signal strength of the received test signal and returns the signal strength value obtained by the test to the first signal processing module; the first signal processing module transmits the signal intensity value to the operation and display module for displaying, compares the signal intensity value with a preset threshold value in the first signal processing module, provides a comparison result to the operation and display module for displaying, and if the signal intensity value returned by the No. 1 slave station is larger than or equal to the preset threshold value, the first signal processing module adds the No. 1 slave station into a communicable slave station list and transmits slave station information in the communicable slave station list to the operation and display module for displaying; if the signal strength value returned by the slave station 1 is smaller than the preset threshold value, continuing to detect the signal strength of the following slave stations until the signal strength tests of all the slave stations are completed;

when the signal intensity value returned by one or more slave stations is judged to be smaller than the preset threshold value according to the information displayed by the operation and display module, the position of the corresponding slave station relative to the master station is adjusted until the signal intensity value returned by the corresponding slave station is detected to be larger than or equal to the preset threshold value, the corresponding slave station is added into the communicable slave station list by the first signal processing module, and meanwhile, the slave station information in the slave station list is transmitted to the operation and display module to be displayed;

s3, selecting trigger mode and trigger control mode

Selecting any one of a one-way trigger mode, a synchronous trigger mode and a delayed trigger mode through the operation and display module, wherein:

s31, if the one-way trigger mode is selected, continuously selecting the Mth slave station from the N slave stations as an object to be triggered through the operation and display module, wherein M is more than or equal to 1 and less than or equal to N; after receiving the instruction of the operation and display module, the first signal processing module sends a request for waiting triggering to a second signal processing module in the Mth slave station, and after receiving a ready response returned by the second signal processing module, sends response information to the operation and display module for displaying; next, an instruction for performing trigger control or trigger reset control on the Mth slave station is sent to a first signal processing module through an operation and display module, the first signal processing module sends a trigger or trigger reset request to a second signal processing module in the Mth slave station after receiving the instruction, the second signal processing module performs trigger or trigger reset control on the high-speed camera, the high-speed camera returns a trigger completion signal or a trigger reset completion signal to the second signal processing module after completing the trigger or trigger reset, the second signal processing module codes and modulates the trigger completion signal or the trigger reset completion signal and sends a trigger completion or trigger reset completion response to the first signal processing module, and the first signal processing module sends corresponding response information to the operation and display module for display;

s32, if the synchronous trigger mode or the delay trigger mode is selected, a plurality of slave stations are selected from the N slave stations as objects to be triggered through the operation and display module, after the first signal processing module receives the instruction, the first signal processing module sequentially sends a request for waiting triggering to a second signal processing module in the selected plurality of slave stations, and after a ready response returned by the second signal processing module in the slave stations is sequentially received, response information is sent to the operation and display module for displaying; wherein,

in the case of synchronous triggering, when an instruction to trigger control or trigger reset control is given to the first signal processing module through the operation and display module, the first signal processing module simultaneously sends a trigger or a request for a trigger reset to a second signal processing module of the selected plurality of secondary stations, the second signal processing module in the plurality of slave stations triggers or triggers and resets the corresponding high-speed cameras, the high-speed cameras return triggering completion signals or triggering and resetting completion signals to the second signal processing module after triggering or triggering and resetting is completed, the second signal processing module in each slave station codes and modulates the triggering completion signals or the triggering and resetting completion signals, sequentially sending a response of triggering completion or triggering reset completion to the first signal processing module, and sending corresponding response information to the operation and display module by the first signal processing module for displaying;

under the condition of delayed triggering, a triggering control or triggering reset control instruction is sent to a first signal processing module through an operation and display module, the first signal processing module receives the instruction and then simultaneously sends a triggering or triggering reset request to a second signal processing module in a plurality of selected slave stations, when the triggering is executed, the second signal processing module in the slave stations triggers a corresponding high-speed camera according to a preset delay time interval, the high-speed camera returns a triggering completion signal to the second signal processing module in the corresponding slave station after the triggering is completed, the second signal processing module sends a triggering completion response to the first signal processing module after the triggering completion signal is coded and modulated, and the first signal processing module sends corresponding response information to the operation and display module for displaying; when the trigger reset is executed, the second signal processing modules in the multiple slave stations trigger reset control on the corresponding high-speed cameras, the high-speed cameras return trigger reset completion signals to the second signal processing modules in the corresponding slave stations after the trigger reset is completed, the second signal processing modules send trigger reset completion responses to the first signal processing modules after the trigger reset completion signals are coded and modulated, and the first signal processing modules send corresponding response information to the operation and display modules for display.

Compared with the prior art, the wireless control system and the control method for triggering the high-speed camera have the beneficial technical effects that:

(1) a control and display module: the wireless control system is used as a control input end and a state display end of the wireless control system, and automatically completes human-computer interface design, functional module design and installation structure design; the module has high operation flexibility, high reliability and low execution error rate, and can realize real-time display of trigger control and trigger feedback;

(2) the communication function of the master station and the slave station is realized: adopt one-to-one master station request, slave station answer mode to accomplish the communication function of master station and slave station, include: request: the method comprises the steps that a request signal of a master station to a slave station is realized, wherein the request signal comprises whether the slave station is on line, the signal strength of the slave station, a trigger mode (a one-way trigger mode, a synchronous trigger mode and a delay trigger mode) of the slave station, and a trigger control mode (trigger and trigger reset) of the slave station; response: the response of the slave station to the request signal of the master station is realized, and the response comprises the on-line response of the slave station, the signal strength response of the slave station, the trigger mode response of the slave station, the trigger control mode response of the slave station and the like;

(3) the signal processing modules of the master station and the slave station: the wireless control system is used as an actuating mechanism of the wireless control system, and can autonomously complete the functional design of acquisition, identification, coding, modulation, transmission, demodulation, decoding, execution and the like of various request signals and response signals; the signal processing module has high execution safety and high reliability;

(4) the system not only can realize the one-way triggering, synchronous triggering and delayed triggering functions of the high-speed camera, but also can remotely monitor the triggering state of the high-speed camera in real time and trigger resetting, thereby greatly improving the application range and the service performance of the high-speed camera.

Drawings

FIG. 1 is a schematic diagram of the control principle of the control system and control method according to the present invention;

FIG. 2 is a schematic diagram of an operating and display module according to the present invention;

fig. 3 a-3 e are schematic flow charts corresponding to the steps of the method according to the present invention.

Detailed Description

The wireless control system and the control method for high-speed camera triggering according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the radio control system of the present invention includes a primary station 1 and a secondary station 2, wherein the primary station 1 is used for implementing trigger control and status indication, and includes an operation and display module 3 and a first signal processing module 4. The secondary stations 2 are used to implement trigger execution and feedback states, each secondary station 2 comprising a second signal processing module 5, the second signal processing module 5 being connected to a high speed camera 6.

Wherein the operating and display module 3 is configured to: sending network detection and signal strength test instructions to the first signal processing module 4, performing trigger mode selection and trigger control mode selection, and sending corresponding instructions to the first signal processing module 4 according to the selected trigger mode and trigger control mode. The trigger mode comprises a one-way trigger mode, a synchronous trigger mode and a delay trigger mode, and the trigger control mode comprises trigger control and trigger reset control. The operation and display module 3 also displays various information returned by the first signal processing module 4 in real time. In addition, the operation and display module 3 is also used to provide a system help to obtain the operational flow of the entire wireless control system.

In the actual use process, an operator can quickly grasp the operation steps and operation cautions of the whole wireless control system by learning the detailed information of the system help in the operation and display module 3, so that the trigger control of the high-speed camera can be accurately and reliably realized in subsequent experiments.

After receiving the network detection instruction of the operation and display module 3, the first signal processing module 4 sequentially sends a request of whether the slave station is on line to the second signal processing module 5 of the N slave stations; and after receiving the slave station online response returned by the second signal processing module 5 in each slave station, adding the corresponding slave station into the slave station library, and sending the data information of the online slave station in the slave station library to the operation and display module 3 for displaying the result.

In the process that the first signal processing module 4 executes a network detection instruction, after a request of whether a slave station is on line is sent to the second signal processing module 5 in one slave station, if a response is not received after the preset waiting time is exceeded, skipping the slave station, continuing to send the request of whether the slave station is on line to the next slave station, and performing network detection of whether the slave station is on line; after the network detection of the N slave stations is performed, when a network detection instruction for the off-line slave station sent by the operation and display module 3 is received, the network detection of the slave station is continued, and after a slave station on-line response returned by the second signal processing module in the slave station is received, the slave station is added into the slave station library, and meanwhile, the data information of the on-line slave station in the slave station library is sent to the operation and display module 3 for result display.

In practice, the information as to whether each slave station is on-line or not can be displayed in real time by means of signal lights on the operation and display module 3, for example, for the detected on-line slave station, the corresponding indicator light is lightened, and for the off-line slave station, the indicator light is not lightened. Thus, the operator can conveniently identify which slave station is not on-line. And for the detected off-line slave stations, the positions of the slave stations relative to the master station are adjusted, and the first signal processing module is sent with an instruction for on-line detection of the relevant slave stations again, so that the off-line slave stations are on line, and all the slave stations can be ensured to be on line.

And then, detecting the signal strength of all the on-line slave stations to ensure that all the on-line slave stations can meet the requirement of the signal strength, so that the on-line slave stations can smoothly communicate with the master station.

After receiving the signal strength test instruction of the operation and display module 3, the first signal processing module 4 sequentially sends a test signal to the second signal processing module 5 of each slave station in the slave station library, the second signal processing module 5 in each slave station tests the signal strength of the received test signal and returns the signal strength value obtained by the test to the first signal processing module 4, the first signal processing module 4 transmits the signal strength value to the operation and display module 3 for display, compares the signal strength value with a threshold value preset in the first signal processing module 4, and provides the comparison result for the operation and display module 3 for display. And if the signal intensity value returned by the slave station is greater than or equal to the preset threshold value after comparison, the first signal processing module 4 adds the corresponding slave station into the communicable slave station list, transmits the slave station information in the communicable slave station list to the operation and display module 3 for display, and if the signal intensity value returned by the slave station is less than the preset threshold value, continues to detect the signal intensity of the following slave stations until the signal intensity tests of all the slave stations are completed.

After the signal strength tests of all the slave stations are executed, if a signal strength test instruction for the slave station with the signal strength value not meeting the requirement sent by the operation and display module 3 is received, the slave station continues to carry out the signal strength test until the signal strength value of the corresponding slave station is judged to meet the requirement of being more than or equal to a preset threshold value, the corresponding slave station is added into a communicable slave station list, and the slave station information in the communicable slave station list is transmitted to the operation and display module 3 to be displayed.

In practice, the signal strength information of each slave station in the slave station library can be displayed in real time by means of signal strength values and signal lights on the operation and display module 3, for example, for a slave station with strong signal strength, the signal strength value is large, and the signal light is on, while for a slave station with weak signal strength, the signal strength value is small, and the signal light is not on. Therefore, the operator can conveniently identify which slave station has strong signal strength. The slave station whose detected signal strength does not satisfy the requirement can successfully communicate with the master station by adjusting the position relationship of the slave station with respect to the slave station.

After ensuring that all slave stations can normally communicate with the master station, selection of the trigger mode and the trigger control mode follows.

When receiving a one-way trigger mode instruction of triggering the Mth slave station of the operation and display module 3, wherein M is more than or equal to 1 and less than or equal to N, the first signal processing module 4 sends a request for waiting for triggering to the second signal processing module 5 in the Mth slave station, and sends response information to the operation and display module 3 for displaying after receiving a ready response returned by the second signal processing module 5. And when receiving the trigger control or trigger reset control instruction of the operation and display module 3, the first signal processing module 4 sends a trigger or trigger reset request to the second signal processing module 5 in the mth slave station, the second signal processing module 5 triggers or trigger reset control the high-speed camera 6, the high-speed camera 6 returns a trigger completion signal or trigger reset completion signal to the second signal processing module 5 after completing the trigger or trigger reset, the second signal processing module 5 codes and modulates the trigger completion signal or trigger reset completion signal and sends a trigger completion or trigger reset completion response to the first signal processing module 4, and the first signal processing module 4 sends corresponding response information to the operation and display module 3 for display.

In practice, the one-way trigger mode is selected on the operation and display module 3, then the Mth slave station is selected, M is more than or equal to 1 and less than or equal to N, the waiting trigger and trigger control information of the Mth slave station is displayed in real time in a signal lamp mode, for example, a waiting trigger button of the operation and display module is clicked, the first signal processing module sends a request for waiting trigger to the second signal processing module, after a ready response returned by the second signal processing module is received, an indicator lamp of the waiting trigger button is lightened, after the triggering or trigger reset button of the operation and display module is clicked, the first signal processing module sends a request for triggering or triggering reset to the second signal processing module, the second signal processing module triggers or triggers reset control to the high-speed camera, and after the triggering or triggering reset of the high-speed camera is completed, the triggering completion signal or triggering reset completion signal is returned to the second signal processing module, the second signal processing module codes and modulates the trigger completion signal or the trigger reset completion signal and then sends a trigger completion or trigger reset completion response to the first signal processing module, and after the ready response returned by the second signal processing module is received, the trigger or trigger reset indicator light is lightened. Therefore, an operator can conveniently identify whether the Mth slave station is triggered or reset.

When receiving a synchronous trigger mode or delay trigger mode instruction which is sent by the operation and display module 3 and triggers a plurality of slave stations, the first signal processing module 4 sequentially sends a request for waiting for triggering to the second signal processing module 5 in the selected plurality of slave stations, and after sequentially receiving ready responses returned by the second signal processing modules 5 in the slave stations, sends response information to the operation and display module 3 for displaying; wherein:

(1) in case of the synchronous trigger mode, when a trigger control or trigger reset control instruction of the operation and display module 3 is received again, the first signal processing module 4 simultaneously sends a trigger or a request to trigger a reset to a second signal processing module 5 of the selected plurality of secondary stations, the second signal processing module 5 in the plurality of slave stations triggers or triggers the reset control of the corresponding high-speed camera 6, the high-speed camera 6 returns a trigger completion signal or a trigger reset completion signal to the second signal processing module 5 after completing the triggering or triggering reset, the second signal processing module 5 in each slave station codes and modulates the trigger completion signal or the trigger reset completion signal, sequentially sending a response of triggering completion or triggering reset completion to the first signal processing module 4, and sending corresponding response information to the operation and display module 3 by the first signal processing module 4 for display;

(2) in the case of the delayed trigger mode, when receiving a trigger control or trigger reset control mode command of the operation and display module 3 again, the first signal processing module 4 simultaneously sends a trigger or trigger reset request to the second signal processing module 5 among the plurality of slave stations. Wherein:

(21) when triggering is executed, the second signal processing modules 5 in the multiple slave stations trigger corresponding high-speed cameras 6 according to preset delay time intervals, the high-speed cameras 6 return triggering completion signals to the second signal processing modules 5 in the corresponding slave stations after triggering is completed, the second signal processing modules 5 perform coding and modulation processing on the triggering completion signals and then send triggered responses to the first signal processing modules 4, and the first signal processing modules 4 send corresponding response information to the operation and display modules 3 for displaying;

(22) when the trigger reset is executed, the second signal processing modules 5 in the plurality of slave stations trigger reset control on the corresponding high-speed cameras 6, the high-speed cameras 6 return trigger reset completion signals to the second signal processing modules 5 in the corresponding slave stations after the trigger reset is completed, the second signal processing modules 5 perform coding and modulation processing on the trigger reset completion signals and then send responses of the trigger reset completion to the first signal processing modules 4, and the first signal processing modules 4 send corresponding response information to the operation and display modules 3 for display.

In practice, a synchronous triggering or delayed triggering mode is selected on the operation and display module 3, and then M slave stations are selected to be triggered, where M is greater than or equal to 1 and less than or equal to N, the waiting triggering and triggering control information of the M slave stations is displayed in real time in a signal lamp manner, for example, a waiting triggering button of the operation and display module is clicked, a first signal processing module sends a request for waiting triggering to a second signal processing module of the M slave stations, after a ready response returned by the second signal processing module of the M slave stations is received, indicator lamps of the waiting triggering buttons of the M slave stations are lightened, and the delay time of the M slave stations needs to be manually input in the delayed triggering mode, where:

(1) in the synchronous trigger mode, after the trigger of the operation and display module or the trigger of the reset button is clicked, the first signal processing module sends a triggering or triggering reset request to the second signal processing modules of the M slave stations, the second signal processing modules of the M slave stations trigger or trigger reset control the high-speed cameras at the same time, the high-speed cameras return triggering completion signals or triggering reset completion signals to the second signal processing modules of the M slave stations after completing triggering or triggering reset, the second signal processing modules of the M slave stations encode and modulate the triggering completion signals or the triggering reset completion signals, and sending a response of triggering completion or triggering reset completion to the first signal processing module in sequence, and after receiving a ready response returned by the second signal processing module of the M slave stations, lightening the indicator lamps of the M slave stations for triggering or triggering reset. Therefore, an operator can conveniently identify whether the slave stations of the M slave stations trigger or trigger resetting.

(2) In a delay triggering mode, after a triggering button of an operation and display module is clicked, second signal processing modules of M slave stations trigger corresponding high-speed cameras according to a preset delay time interval, the high-speed cameras return triggering completion signals to second signal processing modules in corresponding slave stations after triggering is completed, the second signal processing modules perform coding and modulation processing on the triggering completion signals and send triggering completion responses to a first signal processing module, the first signal processing module sends corresponding response information to an operation and display module 3 for displaying, and triggering indicator lamps of the M slave stations on the operation and display module are lightened; after a trigger reset button of the operation and display module is clicked, the second signal processing modules of the M slave stations trigger and reset corresponding high-speed cameras, the high-speed cameras return trigger reset completion signals to the second signal processing modules in the corresponding slave stations after the trigger reset is completed, the second signal processing modules encode and modulate the trigger reset completion signals and send responses of the trigger reset completion to the first signal processing module, the first signal processing module sends corresponding response information to the operation and display module 3 for display, and trigger reset indicator lamps of the M slave stations on the operation and display module are lightened. Therefore, an operator can conveniently identify whether the slave stations of the M slave stations trigger or trigger resetting.

In a specific embodiment according to the present invention, the operation and display module employs a liquid crystal touch screen, and the first signal processing module includes a first programmable logic controller, a first wireless data transmission station, and a first omnidirectional antenna. The second signal processing module comprises a second programmable logic controller, a second wireless data transmission radio station and a second omnidirectional antenna. The first programmable logic controller receives various control instructions from the liquid crystal touch screen and sends corresponding request signals to the second programmable logic controller in the second signal processing module sequentially through the first wireless data transmission radio station, the first omnidirectional antenna, the second omnidirectional antenna and the second wireless data transmission radio station. When the master station sends information to the slave station, the first wireless data transmission radio station carries out coding and modulation processing on signals received from the first programmable logic controller, and the second wireless data transmission radio station carries out demodulation and decoding processing on signals received from the second omnidirectional antenna; when the slave station returns information to the master station, the second programmable logic controller acquires and identifies the information returned by the high-speed camera and sends the information to the second wireless data transmission radio station, the second wireless data transmission radio station codes and modulates the information from the second programmable logic controller and sends the information to the second omnidirectional antenna, and the first wireless data transmission radio station also decodes and demodulates signals transmitted by the second omnidirectional antenna through the first omnidirectional antenna and then sends the signals to the first programmable logic controller for corresponding processing.

As shown in fig. 2, the operation and display module is used to implement network detection, signal strength test, trigger mode selection, trigger control mode selection, and system help, display various information of the system in real time, and display an operation flow of the system after an operator clicks a system help command.

With reference to fig. 3 a-3 e, the flow of the method according to the invention is as follows:

first step, System Placement

The master station is placed at a fixed position, the slave station is placed at a test site, the high-speed camera is connected with the slave station, and the distance between the master station and the slave station can reach 5km farthest.

Second step, system power-on

The power is turned on and the master and slave stations are ready to begin operation.

Third, executing the system help instruction

The operating personnel obtains the operation flow of the whole wireless control system through the system help instruction of the operation and display module, and the operating personnel can be familiar with the whole operation flow conveniently.

Fourthly, network detection is carried out

The network detection method comprises the steps that a network detection instruction is sent to a first signal processing module through an operation and display module, the first signal processing module sends a request whether a No. 1 slave station is on line to a second signal processing module in the No. 1 slave station after receiving the instruction, the No. 1 slave station is added into a slave station library after receiving a No. 1 slave station on-line response returned by the second signal processing module in the No. 1 slave station, and data information of the on-line slave station in the slave station library is sent to the operation and display module to be displayed; and by analogy, the first signal processing module sequentially executes network detection on whether the No. 2-N slave stations are on line or not, and sends data information of the on-line slave stations in the slave station library to the operation and display module for result display.

If some slave station is judged to be offline according to the online slave station information displayed by the operation and display module, the position of the corresponding slave station relative to the master station is adjusted, a network detection instruction for the offline slave station is sent to the first signal processing module through the operation and display module, and the first signal processing module executes network detection of the corresponding slave station until all the slave stations are judged to be online according to the online slave station information displayed by the operation and display module.

Fifthly, detecting the signal intensity

Sending a signal strength testing instruction to a first signal processing module through an operation and display module, sending a testing signal to a second signal processing module in a No. 1 slave station in a slave station library after the instruction is received by the first signal processing module, carrying out signal strength testing on the received testing signal by the second signal processing module in the No. 1 slave station and returning a signal strength value to the first signal processing module, transmitting the signal strength value to the operation and display module by the first signal processing module for displaying, comparing the signal strength value with a threshold value preset in the first signal processing module, and providing a comparison result to the operation and display module for displaying, if the signal strength value returned by the No. 1 slave station is larger than or equal to the preset threshold value, adding the No. 1 slave station into a communicable list by the first signal processing module, and transmitting slave station information in the slave station list to the operation and display module for displaying, and if the returned signal strength value is smaller than the preset threshold value, continuing to detect the signal strength of the following slave stations until the signal strength tests of all the slave stations are completed.

When the signal intensity value returned by one or more slave stations is judged to be smaller than the preset threshold value according to the information displayed by the operation and display module, the position of the corresponding slave station relative to the master station is adjusted until the signal intensity value returned by the corresponding slave station is detected to be larger than or equal to the preset threshold value, the corresponding slave station is added into the communicable slave station list through the first signal processing module, and meanwhile, the slave station information in the slave station list is transmitted to the operation and display module to be displayed.

Sixth step, selecting trigger mode and trigger control mode

(1) if the one-way trigger mode is selected, continuously selecting the Mth slave station from the N slave stations as an object to be triggered through the operation and display module, wherein M is more than or equal to 1 and less than or equal to N, after receiving an instruction, the first signal processing module sends a request for waiting for triggering to a second signal processing module in the Mth slave station, and after receiving a ready response returned by the second signal processing module, the first signal processing module sends response information to the operation and display module for displaying; and then, sending a trigger control or trigger reset control instruction to the Mth slave station to the first signal processing module through the operation and display module, sending a trigger or trigger reset request to a second signal processing module in the Mth slave station after the first signal processing module receives the instruction, triggering or trigger reset controlling the high-speed camera by the second signal processing module, returning a trigger completion signal or trigger reset completion signal to the second signal processing module after the high-speed camera completes triggering or trigger reset, sending a trigger completion or trigger reset completion response to the first signal processing module after the second signal processing module codes and modulates the trigger completion signal or trigger reset completion signal, and sending corresponding response information to the operation and display module to display by the first signal processing module.

(2) If the synchronous trigger mode or the delay trigger mode is selected, a plurality of slave stations are selected from the N slave stations as objects to be triggered through the operation and display module 3, after receiving an instruction, the first signal processing module 4 sequentially sends requests to be triggered to the second signal processing module in the selected plurality of slave stations, and after sequentially receiving ready responses returned by the second signal processing module in the slave stations, sends response information to the operation and display module for displaying. Wherein:

in the case of selection of the synchronization trigger, when an instruction to trigger control or trigger reset control is given to the first signal processing block 4 through the operation and display block, the first signal processing module simultaneously sends a trigger or a request for a trigger reset to a second signal processing module of the selected plurality of secondary stations, the second signal processing module in the plurality of slave stations triggers or triggers and resets the corresponding high-speed cameras, the high-speed cameras return triggering completion signals or triggering and resetting completion signals to the second signal processing module after triggering or triggering and resetting is completed, the second signal processing module in each slave station codes and modulates the triggering completion signals or the triggering and resetting completion signals, sequentially sending a response of triggering completion or triggering reset completion to the first signal processing module, and sending corresponding response information to the operation and display module by the first signal processing module for displaying;

under the condition of delayed triggering, a triggering control or triggering reset control instruction is sent to a first signal processing module (4) through an operation and display module, the first signal processing module receives the instruction and then simultaneously sends a triggering or triggering reset request to a second signal processing module in a plurality of selected slave stations, when the triggering is executed, the second signal processing module in the slave stations triggers a corresponding high-speed camera according to a preset delay time interval, the high-speed camera returns a triggering completion signal to the second signal processing module in the corresponding slave station after the triggering is completed, the second signal processing module codes and modulates the triggering completion signal and then sends a triggering completion response to the first signal processing module, and the first signal processing module sends corresponding response information to the operation and display module for displaying; when the trigger reset is executed, the second signal processing modules in the multiple slave stations trigger reset control on the corresponding high-speed cameras, the high-speed cameras return trigger reset completion signals to the second signal processing modules in the corresponding slave stations after the trigger reset is completed, the second signal processing modules send trigger reset completion responses to the first signal processing modules after the trigger reset completion signals are coded and modulated, and the first signal processing modules send corresponding response information to the operation and display modules for display.

Here, it should be noted that the system help function of the operation and display module in the master station can be realized by using the technical means known to those skilled in the art, and thus, will not be described in detail in this specification. In addition, the aforementioned first to third steps are not indispensable steps according to the present invention, and the present invention is focused on the triggering process of the high-speed camera on the premise that the master station and the slave station and the camera are already in place, and the operator is already familiar with the operation flow of the system of the present invention.

Compared with the traditional long lead wire triggering control, the wireless triggering control method of the high-speed camera can be successfully applied to the high-speed camera shooting test of a plurality of ground tests, and the result shows that the wireless triggering accuracy of the wireless triggering control method is 100%, the wireless triggering control method is good in reliability and high in operability, shortens the waiting time of operators on site, improves the accurate control capability of the high-speed motion analyzer, reduces the misoperation risk of the high-speed motion analyzer, and greatly widens the application range of the high-speed motion analyzer. In addition, in the shot test of a certain warhead, the system is successfully applied to trigger and control a plurality of high-speed cameras, so that the complete outer ballistic trajectory and terminal ballistic flight process is obtained, and the parameters of the outer ballistic trajectory and the terminal ballistic trajectory of the warhead can be conveniently analyzed. Multiple tests show that the invention can obviously widen the application range of the high-speed camera and improve the test capability of the outer trajectory and the terminal trajectory.

It should be noted that, the contents that are not described in detail in this specification can be realized by those skilled in the art through the description in this specification and the prior art, and therefore, the details are not described herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. For a person skilled in the art, without inventive step, several modifications and alterations of the present invention are possible, all of which are intended to be covered by the scope of the present invention.

Claims

1. A wireless control system for high speed camera triggering, the system comprising: the system comprises a single master station (1) and N slave stations (2), wherein N is a positive integer greater than or equal to 1, the master station (1) is used for realizing trigger control and state display and comprises an operation and display module (3) and a first signal processing module (4); the slave stations (2) are used for realizing trigger execution and feedback states, each slave station (2) comprises a second signal processing module (5), and the second signal processing modules (5) are connected to the high-speed camera (6); and wherein the one or more of the one,

the operating and display module (3) is configured to: sending a network detection and signal strength test instruction to the first signal processing module (4), performing trigger mode selection and trigger control mode selection, and sending a corresponding instruction to the first signal processing module (4) according to the selected trigger mode and trigger control mode, wherein the trigger mode comprises a one-way trigger mode, a synchronous trigger mode and a delay trigger mode, and the trigger control mode comprises trigger control and trigger reset control; the various information returned by the first signal processing module (4) is displayed in real time, and the operation and display module (3) is also used for providing system help for obtaining the operation flow of the whole wireless control system;

after receiving the network detection instruction of the operation and display module (3), the first signal processing module (4) sequentially sends a request of whether the slave station is on line to a second signal processing module (5) of the N slave stations; when receiving a slave station online response returned by a second signal processing module (5) in the slave station, adding a corresponding slave station into a slave station library, and sending online slave station information in the slave station library to the operation and display module (3) for result display;

after receiving the signal strength test instruction of the operation and display module (3), the first signal processing module (4) sequentially sends a test signal to the second signal processing module (5) of each slave station in the slave station library, the second signal processing module (5) of each slave station tests the signal strength of the received test signal and returns the signal strength value obtained by testing to the first signal processing module (4), the first signal processing module (4) transmits the signal strength value to the operation and display module (3) for displaying, compares the signal strength value with a threshold value preset in the first signal processing module (4), provides the comparison result to the operation and display module (3) for displaying, and if the signal strength value is greater than or equal to the preset threshold value after comparison, the first signal processing module (4) can add the corresponding slave station to the communication slave station list, the slave station information in the communicable slave station list is transmitted to the operation and display module (3) for display, if the signal intensity value returned by the slave station is smaller than a preset threshold value, the signal intensity detection of the following slave stations is continued until the signal intensity tests of all the slave stations are completed;

when receiving a one-way trigger mode instruction of triggering the Mth slave station and setting M to be more than or equal to 1 and N to be more than or equal to 1 of the operation and display module (3), the first signal processing module (4) sends a request for waiting for triggering to a second signal processing module (5) in the Mth slave station, and sends response information to the operation and display module (3) for displaying after receiving a ready response returned by the second signal processing module (5); when a trigger control instruction of the operation and display module (3) is received, the first signal processing module (4) sends a trigger request to a second signal processing module (5) in the Mth slave station, the second signal processing module (5) controls the triggering of the high-speed camera (6), the high-speed camera (6) returns a trigger completion signal to the second signal processing module (5) after the triggering is completed, the second signal processing module (5) codes and modulates the trigger completion signal and sends a trigger completion response to the first signal processing module (4), and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for displaying; when a trigger reset control instruction of the operation and display module (3) is received, the first signal processing module (4) sends a trigger reset request to a second signal processing module (5) in the Mth slave station, the second signal processing module (5) performs trigger reset control on the high-speed camera (6), the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) after completing the trigger reset, the second signal processing module (5) codes and modulates the trigger reset completion signal and sends a trigger reset completion response to the first signal processing module (4), and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display;

when receiving a synchronous trigger mode instruction or a delay trigger mode instruction which is sent by the operation and display module (3) and triggers a plurality of slave stations, the first signal processing module (4) simultaneously sends a request for waiting for triggering to a second signal processing module (5) in the selected plurality of slave stations, and after receiving ready responses returned by the second signal processing modules (5) in the slave stations in sequence, sends response information to the operation and display module (3) for displaying; wherein,

under the condition of a synchronous trigger mode, when a trigger control instruction of the operation and display module (3) is received, the first signal processing module (4) simultaneously sends a trigger request to a second signal processing module (5) in the plurality of slave stations, the second signal processing module (5) in the plurality of slave stations controls the trigger of the corresponding high-speed camera (6), the high-speed camera (6) returns a trigger completion signal to the second signal processing module (5) after the trigger is completed, the second signal processing module (5) in each slave station sequentially sends a trigger completion response to the first signal processing module (4) after the trigger completion signal is coded and modulated, and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display; when a trigger reset control instruction of the operation and display module (3) is received, the first signal processing module (4) simultaneously sends a trigger reset request to the second signal processing module (5) in the plurality of slave stations, the second signal processing module (5) in the plurality of slave stations triggers reset control on the corresponding high-speed camera (6), the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) after completing the trigger reset, the second signal processing module (5) in each slave station codes and modulates the trigger reset completion signal and then sends a trigger reset completion response to the first signal processing module (4), and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display;

under the condition of a delay trigger mode, when a trigger control instruction of the operation and display module (3) is received, the first signal processing module (4) sends a trigger request to a second signal processing module (5) in the plurality of slave stations, the second signal processing module (5) in the plurality of slave stations triggers a corresponding high-speed camera (6) according to a preset delay time interval, the high-speed camera (6) returns a trigger completion signal to the second signal processing module (5) in the corresponding slave station after the trigger is completed, the second signal processing module (5) sends a trigger completion response to the first signal processing module (4) after the trigger completion signal is coded and modulated, and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display; when a trigger reset control instruction of the operation and display module (3) is received, the first signal processing module (4) triggers a reset request to a second signal processing module (5) in the plurality of slave stations, the second signal processing module (5) in the plurality of slave stations triggers the reset control of the corresponding high-speed camera (6), the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) in the corresponding slave station after the trigger reset is completed, the second signal processing module (5) sends a trigger reset completion response to the first signal processing module (4) after the trigger reset completion signal is coded and modulated, and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display.

2. The wireless control system for high-speed camera triggering according to claim 1, wherein during execution of the network detection instruction by the first signal processing module (4), after a request of whether the slave station is on-line is sent to the second signal processing module (5) in one of the slave stations, if no response is received after a preset waiting time, the slave station is skipped, and a request of whether the slave station is on-line is sent to the next slave station, so that network detection of whether the slave station is on-line is performed; and after the network detection of the N slave stations is executed, when a network detection instruction which is sent by the operation and display module (3) and aims at the offline slave stations is received, the network detection of the slave stations is continued, after a slave station online response returned by a second signal processing module in the slave stations is received, the slave stations are added into the slave station library, and meanwhile, the data information of the online slave stations in the slave station library is sent to the operation and display module (3) to be displayed.

3. The wireless control system for high-speed camera triggering according to claim 2, wherein during the execution of the signal strength test instruction by the first signal processing module (4), if the signal strength value returned by a certain slave station is judged to be smaller than a preset threshold value, no processing is performed on the slave station, and the signal strength test is continued on the next slave station; after the signal strength tests of all the slave stations are executed, if a signal strength test instruction for the slave station with the signal strength value not meeting the requirement sent by the operation and display module (3) is received, the slave station continues to be subjected to the signal strength test until the signal strength value of the corresponding slave station is judged to meet the requirement of being more than or equal to a preset threshold value, the corresponding slave station is added into a communicable slave station list, and the slave station information in the communicable slave station list is transmitted to the operation and display module (3) to be displayed.

4. A method of triggering a high speed camera using the wireless control system of claim 3, comprising the steps of:

s1, network detection is carried out

A network detection instruction is sent to a first signal processing module (4) through an operation and display module (3), after the first signal processing module (4) receives the instruction, a request for whether a No. 1 slave station is on line is sent to a second signal processing module (5) in the No. 1 slave station, after the No. 1 slave station on-line response returned by the second signal processing module (5) in the No. 1 slave station is received, the No. 1 slave station is added into a slave station library, and data information of the on-line slave station in the slave station library is sent to the operation and display module (3) for result display; by analogy, the first signal processing module (4) sequentially executes network detection whether the slave station No. 2-N is on line or not, and sends on-line slave station information in the slave station library to the operation and display module (3) for result display;

if one or more slave stations are judged to be offline according to the online slave station information displayed by the operation and display module (3), the position of the corresponding slave station relative to the master station is adjusted, a network detection instruction for the offline slave stations is sent to the first signal processing module (4) through the operation and display module (3), and the first signal processing module (4) executes network detection of the corresponding slave stations until all the slave stations are judged to be online according to the online slave station information displayed by the operation and display module (3);

s2, carrying out signal strength test

A signal strength testing instruction is sent to a first signal processing module (4) through an operation and display module (3), after receiving the instruction, the first signal processing module (4) sends a testing signal to a second signal processing module (5) in a No. 1 slave station in a slave station library, the second signal processing module (5) in the No. 1 slave station tests the signal strength of the received testing signal, and the signal strength value obtained through the test is returned to the first signal processing module (4); the first signal processing module (4) transmits the signal intensity value to the operation and display module (3) for display, compares the signal intensity value with a preset threshold value in the first signal processing module (4), provides a comparison result to the operation and display module (3) for display, and if the signal intensity value returned by the slave station 1 is larger than or equal to the preset threshold value, the first signal processing module (4) adds the slave station 1 to the communicable slave station list and transmits the slave station information in the communicable slave station list to the operation and display module (3) for display; if the signal strength value returned by the slave station 1 is smaller than the preset threshold value, continuing to detect the signal strength of the following slave stations until the signal strength tests of all the slave stations are completed;

when the signal intensity value returned by one or more slave stations is judged to be smaller than the preset threshold value according to the information displayed by the operation and display module (3), the position of the corresponding slave station relative to the master station is adjusted until the signal intensity value returned by the corresponding slave station is detected to be larger than or equal to the preset threshold value, the corresponding slave station is added into the communicable slave station list by the first signal processing module, and meanwhile, the slave station information in the slave station list is transmitted to the operation and display module (3) for displaying;

s3, selecting trigger mode and trigger control mode

-selecting any of a one-way trigger mode, a synchronous trigger mode and a delayed trigger mode by means of an operating and display module (3), wherein:

s31, if the one-way trigger mode is selected, continuously selecting the Mth slave station from the N slave stations as an object to be triggered through the operation and display module (3), wherein M is more than or equal to 1 and less than or equal to N; after receiving the instruction of the operation and display module (3), the first signal processing module (4) sends a request for waiting triggering to a second signal processing module (5) in the Mth slave station, and after receiving a ready response returned by the second signal processing module (5), sends response information to the operation and display module (3) for displaying; next, an instruction for performing trigger control or trigger reset control on the Mth slave station is sent to a first signal processing module (4) through an operation and display module (3), after receiving the trigger control instruction, the first signal processing module (4) sends a trigger request to a second signal processing module (5) in the Mth slave station, the second signal processing module (5) performs trigger control on a high-speed camera (6), after the high-speed camera (6) completes triggering, the high-speed camera returns a trigger completion signal to the second signal processing module (5), after the second signal processing module (5) performs coding and modulation processing on the trigger completion signal, the trigger completion response is sent to the first signal processing module (4), and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display; after receiving a trigger reset control instruction, a first signal processing module (4) sends a trigger reset request to a second signal processing module (5) in an Mth slave station, the second signal processing module (5) performs trigger reset control on a high-speed camera (6), the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) after completing the trigger reset, the second signal processing module (5) codes and modulates the trigger reset completion signal and sends a trigger reset completion response to the first signal processing module (4), and the first signal processing module (4) sends corresponding response information to an operation and display module (3) for display;

s32, if the synchronous trigger mode or the delay trigger mode is selected, a plurality of slave stations are selected from the N slave stations as objects to be triggered through the operation and display module (3), after receiving an instruction, the first signal processing module (4) simultaneously sends a request for waiting for triggering to the second signal processing module (5) in the selected plurality of slave stations, and after sequentially receiving ready responses returned by the second signal processing modules (5) in the slave stations, sends response information to the operation and display module (3) for displaying; wherein,

under the condition of synchronous triggering, when a triggering control instruction is sent to the first signal processing module (4) through the operation and display module (3), the first signal processing module (4) simultaneously transmits a trigger request to a second signal processing module (5) of the selected plurality of secondary stations, the second signal processing module (5) in the plurality of slave stations controls the triggering of the corresponding high-speed camera (6), the high-speed camera (6) returns a triggering completion signal to the second signal processing module (5) after the triggering is completed, the second signal processing module (5) in each slave station codes and modulates the triggering completion signal, the triggered response is sent to the first signal processing module (4) in sequence, and the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display; when an instruction triggering reset control is sent to the first signal processing module (4) through the operation and display module (3), the first signal processing module (4) simultaneously sends a request to trigger a reset to a second signal processing module (5) of the selected plurality of secondary stations, the second signal processing module (5) in the plurality of slave stations performs trigger reset control on the corresponding high-speed camera (6), the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) after the trigger reset is completed, the second signal processing module (5) in each slave station performs coding and modulation processing on the trigger reset completion signal, sequentially sending a response triggering reset completion to the first signal processing module (4), and sending corresponding response information to the operation and display module (3) by the first signal processing module (4) for display;

under the condition of time delay triggering, a triggering control instruction is sent to the first signal processing module (4) through the operation and display module (3), after the first signal processing module (4) receives the instruction, simultaneously sending a request for a trigger to a second signal processing module (5) of the selected plurality of secondary stations, the request, when executed, the second signal processing module (5) in the plurality of slave stations triggers the corresponding high-speed cameras (6) according to the preset delay time interval, the high-speed cameras (6) return triggering completion signals to the second signal processing modules (5) in the corresponding slave stations after the triggering is completed, the second signal processing module (5) codes and modulates the triggering completion signals, sending a triggered response to the first signal processing module (4), and sending corresponding response information to the operation and display module (3) by the first signal processing module (4) for displaying; the operation and display module (3) sends an instruction for triggering reset control to the first signal processing module (4), after the first signal processing module (4) receives the instruction, simultaneously sending a request for a trigger reset to a second signal processing module (5) of the selected plurality of slave stations, when the trigger reset is performed, the second signal processing module (5) in the plurality of slave stations triggers and resets the corresponding high-speed cameras (6), the high-speed cameras (6) return triggering and resetting completion signals to the second signal processing modules (5) in the corresponding slave stations after completing triggering and resetting, the second signal processing module (5) codes and modulates the triggering and resetting completion signals, and sending a response triggering reset completion to the first signal processing module (4), and sending corresponding response information to the operation and display module (3) by the first signal processing module (4) for display.