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

Abstract

The invention provides a wireless control system and control method for high-speed camera triggering. The system includes a single master station and N slave stations. The master station is used to implement trigger control and status display, including an operation and display module and a first signal processing module. The slave stations are used to implement trigger execution and feedback status, and each slave station includes a second signal processing module. When working, the master station is placed in a fixed position, the slave station is placed in the test site, and the high-speed camera is connected with the slave station. The master station sends trigger mode selection and trigger control selection requests to the slave station through the first signal processing module, and the slave station triggers or resets the high-speed camera. The invention can not only realize the single-channel trigger, synchronous trigger and delay trigger functions of the high-speed camera, but also can remotely monitor the trigger state of the high-speed camera and perform trigger reset, thereby greatly improving the use range and performance of the high-speed camera.

Description

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

technical field

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

Background technique

In the process of weapon development, in order to obtain the rotational speed, angle of attack, acceleration, speed of entry and exit of the projectile, high-speed camera is an indispensable means. High-speed photography can capture the instantaneous state or the entire history of high-speed moving objects, record a large amount of accurate spatio-temporal information, and provide a reliable basis for studying the occurrence mechanism and motion laws of high-speed phenomena. Because the shooting frequency of high-speed cameras is high, the total shooting time is short, and the flying speed of projectiles is fast, so the trigger control of high-speed cameras is very important.

At present, the triggering of digital high-speed cameras mainly adopts the method of combining sound and visual inspection, and the photographer needs to give a trigger signal within a certain distance range according to the sound of bullets and visual inspection results. Since the photographer needs to keep a relatively close distance from the high-speed camera, this method is difficult to adapt to the close-range shooting of the terminal trajectory; for multiple cameras shooting the same action process from different angles, the previous trigger method is even more powerless.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a wireless control system and control method for high-speed camera triggering, so as to achieve single-channel triggering, synchronous triggering and delayed triggering functions while also It can remotely monitor the trigger status of the high-speed camera in real time, and reset the trigger of the high-speed camera.

The technical solutions adopted by the present invention to solve the above technical problems include:

According to one aspect of the present invention, it provides a wireless control system for high-speed camera triggering, the system includes: a single master station and N slave stations, N is a positive integer greater than or equal to 1, wherein the master station is used for Realize trigger control and status display, including operation and display module, first signal processing module; slave station realizes trigger execution and feedback status, each slave station includes a second signal processing module, and the second signal processing module is connected to a high-speed camera; and where,

The operation and display module is used to: issue network detection and signal strength test instructions to the first signal processing module, perform trigger mode selection and trigger control mode selection, and give the The first signal processing module sends corresponding instructions, wherein the trigger mode includes single-channel trigger mode, synchronous trigger mode and delay trigger mode, and the trigger control mode includes trigger control and trigger reset control; the real-time display of the first signal processing module returns various information: and the operation and display module is also used to provide system assistance for obtaining the operation process of the entire wireless control system;

After the first signal processing module receives the network detection instruction of the operation and display module, it sequentially sends a request whether the slave station is online to the second signal processing module in the N slave stations; After the slave station online response returned by the second signal processing module, the corresponding slave station is added to the slave station library, and the online slave station information in the slave station library is sent to the operation and display module for result display;

After the first signal processing module receives the signal strength test instruction of the operation and display module, it sends a test signal to the second signal processing module of each slave station in the slave station library in turn, and the second signal processing module in each slave station The signal processing module performs a signal strength test on the received test signal, and returns the signal strength value obtained by the test to the first signal processing module, and the first signal processing module transmits the signal strength value to the operation and The display module displays, compares the signal strength value with a preset threshold value in the first signal processing module, and provides the comparison result to the operation and display module for display, and, if compared, the signal strength value If the value is greater than or equal to the preset threshold, the first signal processing module adds the corresponding slave station to the list of communicable slave stations, and transmits the slave station information in the list of communicable slave stations to the operation and display module for further processing. Display, if the signal strength value returned by the slave station is less than the preset threshold value, continue to perform signal strength detection on the following slave stations until the signal strength test of all slave stations is completed;

When the operation and display module triggers the Mth slave station, 1≤M≤N, when the single trigger mode instruction is received, the first signal processing module gives the second signal processing in the Mth slave station The module sends a request waiting for a trigger, and after receiving the ready response returned by the second signal processing module, sends the response information to the operation and display module for display; and when receiving the trigger of the operation and display module When controlling or triggering a reset control command, the first signal processing module sends a request for triggering or triggering reset to the second signal processing module in the No. M slave station, and the second signal processing module triggers or triggers reset control for the high-speed camera After the high-speed camera finishes triggering or triggering reset, it returns a triggering completion signal or a triggering reset completion signal to the second signal processing module, and the second signal processing module encodes and modulates the triggering completion signal or triggering reset completion signal to the first signal The processing module sends a trigger completion or trigger reset completion response, and the first signal processing module sends the corresponding response information to the operation and display module for display;

When receiving a synchronous trigger mode instruction or a delay trigger mode instruction for triggering multiple slave stations issued by the operation and display module, the first signal processing module sequentially sends The signal processing module sends a request waiting for a trigger, and after receiving the ready responses returned by the second signal processing module in these slave stations in turn, sends the response information to the operation and display module for display; wherein,

In the case of synchronous trigger mode, when receiving the trigger control or trigger reset control instruction from the operation and display module, the first signal processing module simultaneously sends a signal to the second signal processing module in the plurality of slave stations Trigger or trigger reset request, the second signal processing module in the plurality of slave stations triggers or triggers reset control on the corresponding high-speed cameras, and returns the trigger completion signal or The trigger reset completion signal, after the second signal processing module in each slave station encodes and modulates the trigger completion signal or trigger reset completion signal, sends the response of trigger completion or trigger reset completion to the first signal processing module in turn, the second A signal processing module sends corresponding response information to the operation and display module for display;

In the case of the delay trigger mode, when receiving the trigger control or trigger reset control instruction from the operation and display module, the first signal processing module simultaneously sends the second signal processing module in the plurality of slave stations A trigger or trigger reset request, wherein, when the trigger is executed, the second signal processing module in the plurality of slave stations triggers the corresponding high-speed camera according to the preset delay time interval, and the high-speed camera sends the corresponding high-speed camera to the corresponding slave station after the trigger is completed. The second signal processing module returns the trigger completion signal, and after the second signal processing module encodes and modulates the trigger completion signal, it sends a trigger completion response to the first signal processing module, and the first signal processing module sends the corresponding response information Displaying the operation and display module; when performing trigger reset, the second signal processing module in the plurality of slave stations performs trigger reset control to the corresponding high-speed cameras, and the high-speed cameras give the trigger reset to the corresponding slave stations after completing the trigger reset. The second signal processing module returns the trigger reset completion signal, and after the second signal processing module encodes and modulates the trigger reset completion signal, it sends a trigger reset completion response to the first signal processing module, and the first signal processing module responds accordingly The information is sent to the operation and display module for display.

Further, in the process of executing the network detection instruction by the first signal processing module, when the second signal processing module in one of the slave stations sends a request whether the slave station is online, if the preset waiting time exceeds If no response is received yet, skip the slave station, continue to send the request of whether the slave station is online to the next slave station, and perform network detection of whether the slave station is online; and, after performing the network detection of N slave stations , after receiving the network detection instruction for the offline slave station sent by the operation and display module, continue to perform network detection on the slave station, and receive the slave station returned by the second signal processing module in the slave station After the online response, the slave station is added to the slave station library, and at the same time, the data information of the online slave stations in the slave station library is sent to the operation and display module for result display.

Further, during the execution of the signal strength test instruction by the first signal processing module, if it is judged that the signal strength value returned by a certain slave station is less than the preset threshold value, no processing will be performed on the slave station, and the next slave station will continue to be processed. The station carries out the signal strength test; and after performing the signal strength test to all slave stations, if the signal strength test instruction for the slave station whose signal strength value does not meet the requirements issued by the operation and display module is received, continue Carry out the signal strength test on the slave station until it is judged that the signal strength value of the corresponding slave station meets the requirements greater than or equal to the preset threshold value, then add the corresponding slave station to the list of communicable slave stations, and add the corresponding slave station to the list of communicable slave stations. The slave station information in is transmitted to the operation and display module for display.

According to another aspect of the present invention, it provides a control method for triggering a high-speed camera, comprising the following steps:

S1. Perform network detection

Send a network detection instruction to the first signal processing module through the operation and display module. After receiving the instruction, the first signal processing module sends a request whether the No. 1 slave station is online to the second signal processing module in the No. 1 slave station. After receiving the No. 1 slave station online response returned by the second signal processing module in the No. 1 slave station, add the No. 1 slave station to the slave station library, and send the data information of the online slave station in the slave station library to the The operation and display module displays the results; and so on, the first signal processing module sequentially executes the network detection of whether the No. 2-N slave stations are online, and sends the online slave station information in the slave station library to the operation and display module for result display ;

If it is judged that some of the slave stations are not online according to the online slave station information displayed by the operation and display module, then adjust the position of the corresponding slave station relative to the master station, and send the signal to the first signal processing module through the operation and display module. Issue a network detection command for the offline slave station, and the first signal processing module executes the network detection of the corresponding slave station until it is judged that all the slave stations are online according to the online slave station information displayed by the operation and display module;

S2. Perform signal strength test

Send 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 the second signal processing module in the No. 1 slave station in the slave station library, 1 The second signal processing module in the No. slave station performs a signal strength test on 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 strength value to the operation Display with the display module, compare the signal strength value with the preset threshold in the first signal processing module, and provide the comparison result to the operation and display module for display, if the signal strength value returned by No. 1 slave station is greater than or equal to The preset threshold value, the first signal processing module adds No. 1 slave station to the list of communicable slave stations, and transmits the slave station information in the list of communicable slave stations to the operation and display module for display; if No. 1 slave station If the returned signal strength value is less than the preset threshold value, continue to perform signal strength detection on the following slave stations until the signal strength test on all slave stations is completed;

When it is judged according to the information displayed by the operation and display module that the signal strength value returned by one or several slave stations is less than the preset threshold value, then adjust the position of the corresponding slave station relative to the master station until the signal strength value returned by the corresponding slave station is detected. The signal strength value is greater than or equal to the preset threshold, and the first signal processing module adds the corresponding slave station to the list of communicable slave stations, and simultaneously transmits the slave station information in the slave station list to the operation and display module for display;

S3. Select trigger mode and trigger control mode

Select any one of single trigger mode, synchronous trigger mode and delay trigger mode through the operation and display module, where:

S31. If the single-channel trigger mode is selected, continue to select the Mth slave station from the N slave stations as the object to be triggered through the operation and display module, 1≤M≤N; the first signal processing module receives the operation and display module After the command, send a request to the second signal processing module in the Mth slave station to wait for the trigger, and after receiving the ready response returned by the second signal processing module, send the response information to the operation and display module to display; next, through the operation and display module, the first signal processing module sends an instruction to perform trigger control or trigger reset control on the Mth slave station. After the first signal processing module receives the instruction, it sends the Mth slave station The second signal processing module in the station sends a request for triggering or triggering reset, and the second signal processing module controls the triggering or triggering reset of the high-speed camera. After the high-speed camera completes the triggering or triggering reset, it returns a trigger completion signal or The trigger reset completion signal, the second signal processing module encodes and modulates the trigger completion signal or the trigger reset completion signal to the first signal processing module and sends a trigger completion or trigger reset completion response, and the first signal processing module sends a corresponding The response information is sent 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 N slave stations as objects to be triggered through the operation and display module. The second signal processing modules in the multiple slave stations send requests to wait for the trigger, and after receiving the ready responses returned by the second signal processing modules in these slave stations in turn, send the response information to the operation and display module for further processing. display; where,

In the case of synchronous triggering, when an instruction of trigger control or trigger reset control is sent to the first signal processing module through the operation and display module, the first signal processing module simultaneously processes the second signals of the selected multiple slave stations The module sends a request for triggering or triggering reset, and the second signal processing module in the plurality of slave stations performs triggering or triggering reset control on the corresponding high-speed cameras. After the high-speed camera completes triggering or triggering reset, it returns trigger completion to the second signal processing module Signal or trigger reset completion signal, after the second signal processing module in each slave station encodes and modulates the trigger completion signal or trigger reset completion signal, it sends a trigger completion or trigger reset completion response to the first signal processing module in turn , the first signal processing module sends corresponding response information to the operation and display module for display;

In the case of delayed triggering, the operation and display module sends an instruction for trigger control or trigger reset control to the first signal processing module. After receiving the instruction, the first signal processing module simultaneously sends the The second signal processing module in the station sends a trigger or trigger reset request. When the trigger is executed, the second signal processing module in the multiple slave stations triggers the corresponding high-speed camera according to the preset delay time interval, and the high-speed camera completes the trigger Finally, the trigger completion signal is returned to the second signal processing module in the corresponding slave station. After the second signal processing module encodes and modulates the trigger completion signal, it sends a trigger completion response to the first signal processing module. The first signal processing module Send the corresponding response information to the operation and display module for display; when the trigger reset is executed, the second signal processing module in the plurality of slave stations will trigger reset control for the corresponding high-speed cameras, and the high-speed cameras will send corresponding slaves after the trigger reset is completed. The second signal processing module in the station returns the trigger reset completion signal, and after the second signal processing module encodes and modulates the trigger reset completion signal, it sends a trigger reset completion response to the first signal processing module, and the first signal processing module sends The corresponding response information is sent to the operation and display module for display.

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

(1) Control and display module: As the control input terminal and status display terminal of the wireless control system, it independently completes the design of the human-machine interface, functional module design, and installation structure design; this module has high operational flexibility, high reliability, and low execution error rate Low, real-time display of trigger control and trigger feedback can be realized;

(2) Realization of the communication function between the master station and the slave station: use the one-to-one master station request and slave station response mode to complete the communication function between the master station and the slave station, including: ①Request: realize the request signal from the master station to the slave station , including whether the slave is online, the signal strength of the slave, the trigger mode of the slave (single trigger mode, synchronous trigger mode and delay trigger mode), the trigger control mode of the slave station (trigger, trigger reset); ② Response: Realize the response of the slave station to the request signal of the master station, including whether the slave station is online, 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, etc.;

(3) Signal processing module of master station and slave station: as the executive body of the wireless control system, it independently completes the acquisition, identification, coding, modulation, transmission, demodulation, decoding, execution and other functional design of various request signals and response signals ;The signal processing module has high execution security and high reliability;

(4) The system can not only realize the single-channel trigger, synchronous trigger and delay trigger functions of the high-speed camera, but also can monitor the trigger status of the high-speed camera in real time from a distance and perform trigger reset, which greatly improves the use range and performance of the high-speed camera .

Description of drawings

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

Figure 2 is a schematic diagram of the operation and display module according to the present invention;

3a-3e are schematic flowcharts corresponding to each step in the method according to the present invention.

detailed description

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

As shown in FIG. 1 , the wireless control system of the present invention includes a master station 1 and a slave station 2 , wherein the master station 1 is used for trigger control and status indication, and includes an operation and display module 3 and a first signal processing module 4 . The slave stations 2 are used to implement trigger execution and feedback status, and each slave station 2 includes a second signal processing module 5 connected to a high-speed camera 6 .

Wherein, the operation and display module 3 is used to: issue network detection and signal strength test instructions to the first signal processing module 4, perform trigger mode selection and trigger control mode selection, and give the first signal according to the selected trigger mode and trigger control mode. The signal processing module 4 issues corresponding instructions. Among them, the trigger mode includes single trigger mode, synchronous trigger mode and delay trigger mode, and the trigger control mode includes 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 system assistance for obtaining the operation process of the entire wireless control system.

In actual use, the operator can quickly grasp the operation steps and operation precautions of the entire wireless control system by learning the detailed information of the system help in the operation and display module 3, so that the high-speed camera can be accurately and reliably implemented in subsequent tests trigger control.

After the first signal processing module 4 receives the network detection instruction of the operation and display module 3, it sends a request whether the slave station is online to the second signal processing module 5 in the N slave stations in turn; Second, after the online response of the slave station returned by the signal processing module 5, the corresponding slave station is added to the slave station library, and the data information of the online slave station in the slave station library is sent to the operation and display module 3 for result display.

In the process that the first signal processing module 4 executes the network detection instruction, after sending the request whether the slave station is online to the second signal processing module 5 in one of the slave stations, if the preset waiting time is exceeded, the After receiving the response, skip the slave station, continue to send the request of whether the slave station is online to the next slave station, and perform the network detection of whether the slave station is online; and, after performing the network detection of N slave stations, when After receiving the network detection instruction for the offline slave station sent by the operation and display module 3, continue to perform network detection on the slave station, and after receiving the slave station online response returned by the second signal processing module in the slave station , adding the slave station to the slave station library, and at the same time, sending the data information of the online slave stations in the slave station library to the operation and display module 3 for result display.

In practice, the information on whether each slave station is online can be displayed in real time by means of signal lamps on the operation and display module 3, for example, for the detected online slave station, its corresponding indicator light is brightened, The indicator of the slave station that is online does not light up. In this way, the operator can easily identify which slave station is not online. For the slave stations that are detected to be offline, by adjusting the position of the slave stations relative to the master station, and sending an instruction to the first signal processing module to perform online detection on the relevant slave stations, these offline slave stations are online, so , to ensure that all slaves are online.

Next, detect the signal strength of all online slave stations to ensure that all online slave stations can meet the signal strength requirements, so that they can communicate with the master station smoothly.

After the first signal processing module 4 receives the signal strength test instruction of the operation and display module 3, it sends test signals to the second signal processing module 5 of each slave station in the slave station storehouse in turn, and the second signal in each slave station The processing module 5 performs a signal strength test on the received test signal, and returns the signal strength value obtained by the test to the first signal processing module 4, and the first signal processing module 4 transmits the signal strength value to the operation and display module 3 for further processing. To display, compare the signal strength value with the preset threshold in the first signal processing module 4, and provide the comparison result to the operation and display module 3 for display. And, if after comparison, the signal strength value returned by the slave station is greater than or equal to the preset threshold, the first signal processing module 4 will add the corresponding slave station to the list of communicable slave stations, and add the corresponding slave station to the list of communicable slave stations. The slave station information is sent to the operation and display module 3 for display, if the signal strength value returned by the slave station is less than the preset threshold value, then continue to perform signal strength detection on the following slave stations until the signal strength test for all slave stations is completed .

And after executing the signal strength test to all slave stations, if you receive the signal strength test instruction for the slave station whose signal strength value does not meet the requirements issued by the operation and display module 3, continue to test the signal strength of the slave station. Test until it is judged that the signal strength value of the corresponding slave station meets the requirements greater than or equal to the preset threshold, add the corresponding slave station to the list of communicable slave stations, and send the slave station information in the list of communicable slave stations to The operation and display module 3 performs display.

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, its signal When the strength value is large, the signal light is on at the same time, and for the slave station with weak signal strength, the signal strength value is small, and the signal light is not on at the same time. In this way, the operator can easily identify which slave station has a strong signal strength. For the slave stations whose detection signal strength does not meet the requirements, by adjusting their positional relationship relative to the slave stations, all slave stations can communicate with the master station smoothly.

After ensuring that all slave stations can normally communicate with the master station, the next step is to select the trigger mode and trigger control mode.

When the operation and display module 3 triggers the Mth slave station, 1≤M≤N, when the single trigger mode instruction is received, the first signal processing module 4 sends the second signal processing module 5 in the Mth slave station Send a request to wait for a trigger, and after receiving the ready response returned by the second signal processing module 5 , send the response information to the operation and display module 3 for display. 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 No. M slave station, and the second signal processing module Module 5 performs triggering or triggering reset control to high-speed camera 6. After high-speed camera 6 completes triggering or triggering reset, it returns a triggering completion signal or triggering reset completion signal to second signal processing module 5, and second signal processing module 5 completes the triggering signal. Or the trigger reset completion signal is encoded and modulated and then sent to the first signal processing module 4 for a response of trigger completion or trigger reset completion, and the first signal processing module 4 sends the corresponding response information to the operation and display module 3 for display.

In practice, you can first select the single-channel trigger mode on the operation and display module 3, and then select the Mth slave station, 1≤M≤N, and use the signal lamp to wait for the trigger and trigger control information of the Mth slave station Real-time display, for example, click the wait trigger button of the operation and display module, the first signal processing module sends a request to wait for trigger to the second signal processing module, and waits for the trigger after receiving the ready response returned by the second signal processing module The indicator light of the button turns bright, and after clicking the trigger or trigger reset button of the operation and display module, the first signal processing module sends a trigger or trigger reset request to the second signal processing module, and the second signal processing module triggers or triggers the high-speed camera. Trigger reset control, after the high-speed camera completes triggering or trigger reset, it returns a trigger completion signal or a trigger reset completion signal to the second signal processing module, and the second signal processing module encodes and modulates the trigger completion signal or trigger reset completion signal to the The first signal processing module sends a trigger complete or trigger reset complete response, and after receiving the ready response returned by the second signal processing module, the trigger or trigger reset indicator lights up. In this way, the operator can easily identify whether the Mth slave station triggers or triggers reset.

When receiving the synchronous trigger mode or delay trigger mode instruction of triggering multiple slave stations issued by the operation and display module 3, the first signal processing module 4 sequentially sends the second signal processing module in the selected multiple slave stations 5. Send a request waiting for a trigger, and after receiving the ready responses returned by the second signal processing module 5 in these slave stations in turn, send the response information to the operation and display module 3 for display; wherein:

(1) In the case of the synchronous trigger mode, when receiving the trigger control or trigger reset control instruction of the operation and display module 3, the first signal processing module 4 simultaneously sends the signal to the second selected slave station. The signal processing module 5 sends a request for triggering or triggering reset, and the second signal processing module 5 in the plurality of slave stations triggers or triggers the reset control for the corresponding high-speed camera 6, and the high-speed camera 6 completes triggering or triggering reset. The signal processing module 5 returns the trigger completion signal or the trigger reset completion signal, and the second signal processing module 5 in each slave station encodes and modulates the trigger completion signal or the trigger reset completion signal, and then sends them to the first signal processing module 4 in turn. Send the response that the trigger is completed or the trigger reset is completed, and the first signal processing module 4 sends the corresponding response information to the operation and display module 3 for display;

(2) In the case of the delay trigger mode, when receiving the trigger control or trigger reset control mode instruction of the operation and display module 3, the first signal processing module 4 simultaneously gives the second signal in the plurality of slave stations The processing module 5 sends a request to trigger or trigger a reset. in:

(21) When triggering is performed, the second signal processing module 5 in the plurality of slave stations triggers the corresponding high-speed camera 6 according to the preset delay time interval, and the high-speed camera 6 sends the signal to the second signal processing module in the corresponding slave station after the trigger is completed. The signal processing module 5 returns the trigger completion signal, and after the second signal processing module 5 encodes and modulates the trigger completion signal, it sends a trigger completion response to the first signal processing module 4, and the first signal processing module 4 sends the corresponding response information Send operation and display module 3 to display;

(22) When performing trigger reset, the second signal processing module 5 in the plurality of slave stations triggers reset control to the corresponding high-speed camera 6, and the high-speed camera 6 gives the second signal processing module in the corresponding slave station after completing the trigger reset 5. Return the trigger reset completion signal. After the second signal processing module 5 encodes and modulates the trigger reset completion signal, it sends a trigger reset completion response to the first signal processing module 4, and the first signal processing module 4 sends the corresponding response information to the first signal processing module 4. Send to the operation and display module 3 for display.

In practice, you can first select the synchronous trigger or delay trigger mode on the operation and display module 3, and then choose to trigger M slave stations, 1≤M≤N, and use signal lights to wait for and trigger M slave stations. Real-time display of control information, for example, click the wait-to-trigger button of the operation and display module, the first signal processing module sends a request to wait for trigger to the second signal processing module of M slave stations, and receives the second signal of M slave stations After processing the ready response returned by the module, the indicator lights of the waiting trigger buttons of the M slave stations will light up. In the delay trigger mode, the delay time of the M slave stations needs to be manually input, among which:

(1) In synchronous trigger mode, after clicking the trigger or trigger reset button of the operation and display module, the first signal processing module sends a trigger or trigger reset request to the second signal processing module of the M slave stations, and the M slave stations The second signal processing module of the high-speed camera simultaneously triggers or triggers reset control. After the high-speed camera completes the trigger or trigger reset, it returns the trigger completion signal or the trigger reset completion signal to the second signal processing module of M slave stations. M slave stations After the second signal processing module encodes and modulates the trigger completion signal or trigger reset completion signal, it sends trigger completion or trigger reset completion responses to the first signal processing module in turn, and receives second signals from M slave stations After processing the ready response returned by the module, the trigger or trigger reset indicator lights of M slave stations will be on. In this way, the operator can conveniently identify whether a slave station of the M slave stations triggers or triggers a reset.

(2) In the delay trigger mode, after clicking the trigger button of the operation and display module, the second signal processing modules of the M slave stations will trigger the corresponding high-speed cameras according to the preset delay time interval, and the high-speed cameras will be given after the triggering is completed. The second signal processing module in the corresponding slave station returns the trigger completion signal, and after the second signal processing module encodes and modulates the trigger completion signal, it sends a trigger completion response to the first signal processing module, and the first signal processing module responds accordingly The response information is sent by the operation and display module 3 for display, and the trigger indicator lights of the M slave stations on the operation and display module are brightened; after clicking the trigger reset button of the operation and display module, the second signal processing modules of the M slave stations are The corresponding high-speed camera performs a trigger reset. After the high-speed camera completes the trigger reset, it returns a trigger reset completion signal to the second signal processing module in the corresponding slave station. After the second signal processing module encodes and modulates the trigger reset completion signal, it sends the signal to the second A signal processing module sends a response that the trigger reset is completed, and the first signal processing module sends the corresponding response information to the operation and display module 3 for display, and the trigger reset indicators of the M slave stations on the operation and display module light up. In this way, the operator can conveniently identify whether a slave station of the M slave stations triggers or triggers a reset.

In a specific embodiment of the present invention, the operation and display module adopts 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 includes a second programmable logic controller, a second wireless data transmission station, and a second omnidirectional antenna. The first programmable logic controller receives various control instructions from the LCD touch screen, and sequentially passes through the first wireless data transmission station, the first omnidirectional antenna, the second omnidirectional antenna, and the second wireless data transmission station to the second signal processing A second programmable logic controller in the module sends a corresponding request signal. Among them, when the master station sends information to the slave station, the first wireless data transmission station encodes and modulates the signal received from the first programmable logic controller, and the second wireless data transmission station encodes and modulates the signal received from the second omnidirectional antenna The signal is demodulated and decoded; when the slave station returns information to the master station, the second programmable logic controller acquires and recognizes the information returned by the high-speed camera and sends it to the second wireless data transmission station, and the second wireless data transmission station The transmission station encodes and modulates the information from the second programmable logic controller and sends it to the second omnidirectional antenna, and the first wireless data transmission station also transmits the signal transmitted by the second omnidirectional antenna through the first omnidirectional antenna After being decoded and demodulated, it is sent to the first programmable logic controller for corresponding processing.

As shown in Figure 2, the operation and display module is used to realize network detection, signal strength test, trigger mode selection and trigger control mode selection, system help, real-time display of various information of the system, and display after the operator clicks the system help command System operation process.

As shown in Fig. 3a-Fig. 3e, the process flow of the method according to the present invention is as follows:

The first step, the placement of the system

The master station is placed in a fixed position, the slave station is placed at the 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 up to 5km.

The second step, power on the system

Turn on the power, the master and slave are ready to work.

The third step is to execute the system help command

The operator obtains the operation process of the entire wireless control system through the system help command of the operation and display module, which is convenient for the operator to be familiar with the entire operation process.

Step 4: Perform network detection

Send a network detection instruction to the first signal processing module through the operation and display module. After receiving the instruction, the first signal processing module sends a request whether the No. 1 slave station is online to the second signal processing module in the No. 1 slave station. After receiving the No. 1 slave station online response returned by the second signal processing module in the No. 1 slave station, add the No. 1 slave station to the slave station library, and send the data information of the online slave station in the slave station library to the The operation and display module displays the result; and so on, the first signal processing module executes the network detection of whether No. 2-N slave stations are online, and sends the data information of the online slave stations in the slave station library to the operation and The display module performs result display.

If it is judged that some of the slave stations are not online according to the online slave station information displayed by the operation and display module, then adjust the position of the corresponding slave station relative to the master station, and send the signal to the first signal processing module through the operation and display module. Issue a network detection command for offline slave stations, and the first signal processing module executes the network detection of corresponding slave stations until it is judged that all slave stations are online according to the online slave station information displayed by the operation and display module.

Step 5: Check the signal strength

Send a signal strength test instruction to the first signal processing module through the operation and display module, and after receiving the instruction, the first signal processing module sends a test signal to the second signal processing module in the No. 1 slave station in the slave station library, 1 The second signal processing module in the No. slave station performs a signal strength test on the received test signal, and returns the signal strength value to the first signal processing module, and the first signal processing module transmits the signal strength value to the operation and display module To display, compare the signal strength value with the preset threshold in the first signal processing module, and provide the comparison result to the operation and display module for display, if the signal strength value returned by No. 1 slave station is greater than or equal to the preset Threshold value, the first signal processing module adds No. 1 slave station to the list of communicable slave stations, and transmits the slave station information in the slave station list to the operation and display module for display, if the returned signal strength value is less than the preset threshold, then continue to perform signal strength detection on the following slave stations until the signal strength test on all slave stations is completed.

When it is judged according to the information displayed by the operation and display module that the signal strength value returned by one or several slave stations is less than the preset threshold value, then adjust the position of the corresponding slave station relative to the master station until the signal strength value returned by the corresponding slave station is detected. The signal strength value is greater than or equal to the preset threshold, and the first signal processing module adds the corresponding slave station to the list of communicable slave stations, and at the same time transmits the slave station information in the slave station list to the operation and display module for display.

Step 6. Select trigger mode and trigger control mode

Select any one of single trigger mode, synchronous trigger mode and delay trigger mode through the operation and display module, where:

(1) If the single-channel trigger mode is selected, continue to select the Mth slave station from the N slave stations as the object to be triggered through the operation and display module, 1≤M≤N, after the first signal processing module receives the instruction, Send a request to wait for a trigger to the second signal processing module in the Mth slave station, and after receiving the ready response returned by the second signal processing module, send the response information to the operation and display module for display; Next, send an instruction to the first signal processing module to perform trigger control or trigger reset control on the Mth slave station through the operation and display module. After receiving the instruction, the first signal processing module sends The second signal processing module sends a trigger or trigger reset request, and the second signal processing module performs trigger or trigger reset control on the high-speed camera. After the high-speed camera completes the trigger or trigger reset, it returns a trigger completion signal or a trigger reset completion signal to the second signal processing module. After the second signal processing module encodes and modulates the trigger completion signal or trigger reset completion signal, it sends a trigger completion or trigger reset completion response to the first signal processing module, and the first signal processing module sends the corresponding response information to Operation and display module for display.

(2) If a synchronous trigger mode or a delayed trigger mode is selected, a plurality of slave stations are selected from N slave stations through the operation and display module 3 as objects to be triggered, and after the first signal processing module 4 receives the instruction, it sequentially gives The second signal processing modules in the selected multiple slave stations send requests to wait for triggers, and after receiving the ready responses returned by the second signal processing modules in these slave stations in turn, send the response information to the operation and Display module for display. in:

In the case of synchronous triggering, when the operation and display module sends an instruction for trigger control or trigger reset control to the first signal processing module 4, the first signal processing module simultaneously The signal processing module sends a request for triggering or triggering reset, and the second signal processing module in the plurality of slave stations performs triggering or triggering reset control on the corresponding high-speed cameras, and returns to the second signal processing module after the high-speed cameras complete the triggering or triggering reset. The trigger complete signal or trigger reset complete signal, after the second signal processing module in each slave station encodes and modulates the trigger complete signal or trigger reset complete signal, sends the trigger complete or trigger reset complete signal to the first signal processing module in turn response, the first signal processing module sends the corresponding response information to the operation and display module for display;

In the case of delayed triggering, an instruction for trigger control or trigger reset control is sent to the first signal processing module (4) through the operation and display module, and after receiving the instruction, the first signal processing module The second signal processing module in the station sends a trigger or trigger reset request. When the trigger is executed, the second signal processing module in the multiple slave stations triggers the corresponding high-speed camera according to the preset delay time interval, and the high-speed camera completes After triggering, a trigger completion signal is returned to the second signal processing module in the corresponding slave station. After the second signal processing module encodes and modulates the trigger completion signal, it sends a trigger completion response to the first signal processing module. The first signal processing module The module sends the corresponding response information to the operation and display module for display; when the trigger reset is executed, the second signal processing module in the multiple slave stations triggers the reset control for the corresponding high-speed camera, and the high-speed camera gives the corresponding response after the trigger reset is completed. The second signal processing module in the slave station returns the trigger reset completion signal. After the second signal processing module encodes and modulates the trigger reset completion signal, it sends a trigger reset completion response to the first signal processing module. The first signal processing module The corresponding response information is sent to the operation and display module for display.

Here, it should be noted that the operation of the master station and the system help function of the display module can be realized by using technical means known to those skilled in the art, so no detailed description will be given in this specification. In addition, the foregoing first step to the third step are not essential steps according to the present invention. The key point of the present invention is that the master station, the slave station and the camera are all in place, and the operator is already familiar with the system of the present invention The triggering process of the high-speed camera under the premise of the operation process.

Comparing the high-speed camera wireless trigger according to the present invention with the previous long-lead trigger control, the present invention can be successfully used in the high-speed camera tests of multiple ground tests, and the results show that the wireless trigger of the present invention has a 100% accuracy rate and good reliability. High operability shortens the waiting time of operators on site, improves the precise control ability of the high-speed motion analyzer, reduces the risk of misoperation of the high-speed motion analyzer, and greatly broadens the application range of the high-speed motion analyzer. In addition, in the firing test of a warhead, the system was successfully used to trigger and control multiple high-speed cameras, and the complete flight process of the outer trajectory and the terminal trajectory was obtained, which is convenient for analyzing the parameters of the outer trajectory and the terminal trajectory of the warhead. Multiple tests show that the present invention can obviously widen the range of use of the high-speed camera, and improve the test capability of the outer trajectory and the terminal trajectory.

Here, it should be noted that the content that is 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, so details are not repeated here.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. For those skilled in the art, several modifications and substitutions can be made to the present invention without any creative work, and all these modifications and substitutions should be covered within the protection scope of the present invention.

Claims (4)

1. A wireless control system for high-speed camera triggering, characterized in that the system comprises: a single master station (1) and N slave stations (2), where N is a positive integer greater than or equal to 1, wherein the master station (1) is used to realize trigger control and status display, including operation and display module (3), first signal processing module (4); slave station (2) is used to realize trigger execution and feedback status, each slave station (2 ) all include a second signal processing module (5), the second signal processing module (5) is connected to the high-speed camera (6); and wherein, The operation and display module (3) is used for: 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 according to the selected trigger mode and The trigger control mode sends corresponding instructions to the first signal processing module (4), wherein the trigger mode includes single-channel trigger mode, synchronous trigger mode and delay trigger mode, and the trigger control mode includes trigger control and trigger reset control; real-time Displaying various information returned by the first signal processing module (4), and the operation and display module (3) is also used to provide system help for obtaining the operation flow of the entire wireless control system; After the first signal processing module (4) receives the network detection instruction from the operation and display module (3), it sequentially sends a request whether the slave station is online to the second signal processing module (5) in the N slave stations ; After receiving the slave station online response that the second signal processing module (5) in the slave station returns, the corresponding slave station is added to the slave station storehouse, and the online slave station information in the slave station storehouse is sent to the operation and The display module (3) performs result display; After the first signal processing module (4) receives the signal strength test instruction of the operation and display module (3), it sequentially sends a test to the second signal processing module (5) of each slave station in the slave station library. signal, the second signal processing module (5) in each slave station carries out the signal strength test to the test signal received, and returns the signal strength value obtained by the test to the first signal processing module (4), and the first signal processing module (4) A signal processing module (4) transmits the signal strength value to the operation and display module (3) for display, and compares the signal strength value with a preset threshold in the first signal processing module (4), And the comparison result is provided to the operation and display module (3) for display, and if the signal strength value is greater than or equal to the preset threshold value after comparison, the first signal processing module (4) will correspond to the slave station Add to the list of communicable slave stations, and transmit the slave station information in the list of communicable slave stations to the operation and display module (3) for display, if the signal strength value returned by the slave station is less than the preset threshold, Then continue to test the signal strength of the following slave stations until the signal strength test of all slave stations is completed; When receiving the operation and display module (3) triggering the Mth slave station, 1≤M≤N, when the single trigger mode instruction, the first signal processing module (4) sends the Mth slave station The second signal processing module (5) in sends the request waiting for triggering, and after receiving the ready response returned by the second signal processing module (5), the response information is sent to the operation and display module (3) display; and when receiving the trigger control instruction of the operation and display module (3), the first signal processing module (4) sends a trigger to the second signal processing module (5) in the Mth slave station Request, the second signal processing module (5) triggers the high-speed camera (6), and the high-speed camera (6) returns a trigger completion signal to the second signal processing module (5) after the high-speed camera (6) completes the trigger, and the second signal processing module (5) After encoding and modulating 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 the corresponding response information to the operation and display module (3) display; and when receiving the trigger reset control instruction of the operation and display module (3), the first signal processing module (4) sends to the second signal processing module (5) in the Mth slave station Trigger reset request, the second signal processing module (5) performs trigger reset control to the high-speed camera (6), and the high-speed camera (6) returns a trigger reset completion signal to the second signal processing module (5) after completing the trigger reset, and the second After the signal processing module (5) performs coding and modulation processing on the trigger reset completion signal, it sends the response of trigger reset completion to the first signal processing module (4), and the first signal processing module (4) sends the corresponding response information to all The above operation and display module (3) is displayed; When receiving a synchronous trigger mode command or a delay trigger mode command from the operation and display module (3) to trigger multiple slave stations, the first signal processing module (4) simultaneously sends the selected multiple slave stations The second signal processing module (5) in the slave station sends a request waiting for triggering, and after receiving the ready responses returned by the second signal processing module (5) in these slave stations in turn, the response information is sent to all The above-mentioned operation and display module (3) is displayed; Wherein, In the case of the synchronous trigger mode, when receiving the trigger control instruction from the operation and display module (3), the first signal processing module (4) simultaneously processes the second signals of the plurality of slave stations Module (5) sends the request of triggering, and the second signal processing module (5) in these multiple slave stations triggers and controls corresponding high-speed camera (6), and high-speed camera (6) sends second signal processing module after finishing triggering (5) return the triggering completion signal, after the second signal processing module (5) in each slave station encodes and modulates the triggering completion signal, send the response of triggering completion to the first signal processing module (4) successively, the second A signal processing module (4) sends corresponding response information to the operation and display module (3) for display; when receiving the trigger reset control instruction from the operation and display module (3), the first The signal processing module (4) sends a request to trigger reset to the second signal processing module (5) in the plurality of slave stations simultaneously, and the second signal processing module (5) in the plurality of slave stations is to the corresponding high-speed camera ( 6) Carry out the trigger reset control, the high-speed camera (6) returns the trigger reset completion signal to the second signal processing module (5) after completing the trigger reset, and the second signal processing module (5) in each slave station completes the trigger reset signal After encoding and modulation processing, the first signal processing module (4) sends a response to trigger reset completion in sequence, and the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display ; In the case of the delay trigger mode, when receiving the trigger control instruction from the operation and display module (3), the first signal processing module (4) sends the second signal to the plurality of slave stations The processing module (5) sends a triggered request, and the second signal processing module (5) in the plurality of slave stations triggers the corresponding high-speed camera (6) according to the preset delay time interval, after the high-speed camera (6) completes the triggering Return the trigger completion signal to the second signal processing module (5) in the corresponding slave station, and after the second signal processing module (5) encodes and modulates the trigger completion signal, it sends the trigger completion signal to the first signal processing module (4) response, the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display; when receiving the trigger reset control instruction of the operation and display module (3), The first signal processing module (4) triggers a reset request to the second signal processing module (5) in the plurality of slave stations, and the second signal processing module (5) in the plurality of slave stations responds to the corresponding high-speed The camera (6) performs trigger reset control. After the high-speed camera (6) completes the trigger reset, it returns a trigger reset completion signal to the second signal processing module (5) in the corresponding slave station, and the second signal processing module (5) completes the trigger reset. After the signal is encoded and modulated, it sends a response to the first signal processing module (4) to trigger reset completion, and the first signal processing module (4) sends the 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, characterized in that, when the first signal processing module (4) executes the network detection instruction, when a certain slave station therein After the second signal processing module (5) of the second signal processing module (5) has sent the request of whether the slave station is online, if it exceeds the preset waiting time and has not received a response, it will skip the slave station and continue to send whether the slave station is online to the next slave station. The request of carrying out the network detection of whether the slave station is online; And, after performing the network detection to N slave stations, when receiving the network detection for the offline slave station sent by the operation and display module (3) After the command, continue to perform network detection on the slave station, and after receiving the slave station online response returned by the second signal processing module in the slave station, add the slave station to the slave station library, and at the same time add the online station in the slave station library The data information of the slave station is sent to the operation and display module (3) for result display. 3. The wireless control system for high-speed camera triggering according to claim 2, characterized in that, in the process of executing the signal strength test instruction in the first signal processing module (4), if it is judged that a certain slave station returns If the signal strength value is less than the preset threshold, no processing will be done on the slave station, and the next slave station will continue to perform the signal strength test; and after performing the signal strength test on all slave stations, if the operation is received again After the signal strength test command for the slave station whose signal strength value does not meet the requirements issued by the display module (3), continue to perform the signal strength test on the slave station until the signal strength value of the corresponding slave station is judged to be greater than or equal to the preset After the threshold value is required, the corresponding slave station is added to the list of communicable slave stations, and the information of the slave stations in the list of communicable slave stations is sent to the operation and display module (3) for display. 4. A method utilizing a wireless control system as claimed in claim 3 to trigger a high-speed camera, comprising the following steps: S1. Perform network detection Send a network detection instruction to the first signal processing module (4) through the operation and display module (3), after the first signal processing module (4) receives the instruction, send it to the second signal processing module (5) in the No. 1 slave station ) to send No. 1 slave station online request, after receiving No. 1 slave station online response returned by the second signal processing module (5) in No. 1 slave station, add No. 1 slave station to the slave station library, and The data information of the online slave station in the slave station storehouse is sent to described operation and display module (3) to carry out result display; And so on, the first signal processing module (4) carries out the network detection whether No. 2-N slave station is online successively , and send the online slave station information in the slave station library to the operation and display module (3) for result display; If it is judged that one or some slave stations are not online according to the online slave station information displayed by the operation and display module (3), then adjust the position of the corresponding slave station relative to the master station, and pass the operation and display module (3) ) to the first signal processing module (4) to send a network detection instruction for the offline slave station, and the first signal processing module (4) executes the network detection of the corresponding slave station until the online The slave station information judges that all the slave stations are online; S2. Perform signal strength test Send a signal strength test instruction to the first signal processing module (4) through the operation and display module (3), after the first signal processing module (4) receives the instruction, send it to the No. 1 slave station in the slave station library The second signal processing module (5) sends a test signal, and the second signal processing module (5) in No. 1 slave station performs a signal strength test on 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, and the signal strength value is compared with the preset threshold value in the first signal processing module (4) compare, and the comparison result is provided to the operation and display module (3) for display, if the signal strength value returned by No. 1 slave station is greater than or equal to the preset threshold, the first signal processing module (4) will join No. 1 slave station to in the list of communicable slave stations, and transmit the information of the slave stations in the list of communicable slave stations to the operation and display module (3) for display; if the signal strength value returned by No. 1 slave station is less than the preset threshold value, continue to The following slave stations perform signal strength detection until the signal strength test of all slave stations is completed; When judging according to the information displayed by the operation and display module (3) that the signal strength value returned by one or several slave stations is less than the preset threshold value, then adjust the position of the corresponding slave station relative to the master station until the corresponding slave station is detected The signal strength value returned by the station is greater than or equal to the preset threshold value, and the corresponding slave station is added to the communicable slave station list by the first signal processing module, and the slave station information in the slave station list is sent to the operation and display module ( 3) to display; S3. Select trigger mode and trigger control mode Select any one of single-channel trigger mode, synchronous trigger mode and delay trigger mode through the operation and display module (3), wherein: S31, if the single-way trigger mode is selected, continue to select the Mth slave station from the N slave stations as the object to be triggered through the operation and display module (3), 1≤M≤N; the first signal processing module (4) After receiving the instruction of the operation and display module (3), send a request to wait for triggering to the second signal processing module (5) in the No. M slave station, and receive the preparation returned by the second signal processing module (5) After the ready response, the response information is sent to the operation and display module (3) for display; next, the operation and display module (3) is sent to the first signal processing module (4) to carry out the Mth slave station Instructions for trigger control or trigger reset control. After receiving the trigger control instruction, the first signal processing module (4) sends a trigger request to the second signal processing module (5) in the No. M slave station. The second signal processing module (5) Trigger control is carried out to high-speed camera (6), after high-speed camera (6) completes triggering, return trigger completion signal to second signal processing module (5), and second signal processing module (5) encodes this trigger completion signal After the modulation and processing, the first signal processing module (4) sends the response that the trigger is completed, and the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display; the first signal processing module ( 4) After receiving the trigger reset control instruction, send a trigger reset request to the second signal processing module (5) in the No. M slave station, and the second signal processing module (5) performs trigger reset control to the high-speed camera (6) After the high-speed camera (6) completes the trigger reset, it returns a trigger reset completion signal to the second signal processing module (5), and the second signal processing module (5) sends the first signal processing signal after encoding and modulation processing to the trigger reset completion signal. The module (4) sends a response that triggers reset completion, and the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display; S32. If synchronous trigger mode or delayed trigger mode is selected, multiple slave stations are selected from N slave stations through the operation and display module (3) as objects to be triggered, and after the first signal processing module (4) receives the instruction , while sending a request to wait for a trigger to the second signal processing module (5) in the selected multiple slave stations, and receiving the ready responses returned by the second signal processing module (5) in these slave stations in turn Afterwards, the response information is sent to the operation and display module (3) for display; wherein, In the case of synchronous triggering, when the trigger 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 sends The second signal processing module (5) sends a trigger request, and the second signal processing module (5) in the plurality of slave stations triggers the corresponding high-speed camera (6), and the high-speed camera (6) sends the trigger request to the second The signal processing module (5) returns the trigger completion signal, and after the second signal processing module (5) in each slave station encodes and modulates the trigger completion signal, it sends the trigger completion signal to the first signal processing module (4) successively. Response, the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display; when the operation and display module (3) sends a trigger reset to the first signal processing module (4) When controlling the instruction, the first signal processing module (4) sends a request to trigger reset to the second signal processing module (5) in the selected multiple slave stations at the same time, and the second signal processing module in the multiple slave stations (5) Carry out trigger reset control to corresponding high-speed camera (6), after high-speed camera (6) completes trigger reset, return trigger reset completion signal to second signal processing module (5), the second signal processing module in each slave station (5) After encoding and modulating the trigger reset completion signal, send a response to trigger reset completion to the first signal processing module (4) in turn, and the first signal processing module (4) sends the corresponding response information to the The operation and display module (3) displays; In the case of delayed triggering, the operation and display module (3) sends an instruction for trigger control to the first signal processing module (4), and after receiving the instruction, the first signal processing module (4) simultaneously gives the selected The second signal processing module (5) in the plurality of slave stations sends a trigger request, and when the trigger is executed, the second signal processing module (5) in the plurality of slave stations triggers the corresponding The high-speed camera (6), after the high-speed camera (6) completes the trigger, returns the trigger completion signal to the second signal processing module (5) in the corresponding slave station, and the second signal processing module (5) encodes and modulates the trigger completion signal After processing, send the response that the trigger is completed to the first signal processing module (4), and the first signal processing module (4) sends the corresponding response information to the operation and display module (3) for display; through the operation and display module (3) send the instruction that triggers reset control to the first signal processing module (4), after the first signal processing module (4) receives the instruction, give the second signal processing module (5) in the plurality of selected slave stations simultaneously ) to send a trigger reset request, when the trigger reset is executed, the second signal processing module (5) in the plurality of slave stations triggers reset control to the corresponding high-speed camera (6), and the high-speed camera (6) gives the trigger reset after completing the trigger reset Correspondingly, the second signal processing module (5) in the slave station returns a trigger reset completion signal, and after the second signal processing module (5) encodes and modulates the trigger reset completion signal, it sends a trigger signal to the first signal processing module (4). In response to the completion of reset, the first signal processing module (4) sends corresponding response information to the operation and display module (3) for display.