CN101318076B - Digitized real scale game ship system in network environment - Google Patents
Digitized real scale game ship system in network environment Download PDFInfo
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- CN101318076B CN101318076B CN2008100522472A CN200810052247A CN101318076B CN 101318076 B CN101318076 B CN 101318076B CN 2008100522472 A CN2008100522472 A CN 2008100522472A CN 200810052247 A CN200810052247 A CN 200810052247A CN 101318076 B CN101318076 B CN 101318076B
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Abstract
The invention discloses a digitalized real game steamboat system in a network environment. The system comprises a ground control center, a plurality of game steamboats, a sensor, an isolated output, a motor and a fort for game steamboat and an embedded CPLD chip in the game steamboat; wherein, serial communication is adopted between the CPLD chip and network ports to transform the current state of the motor into serial data on one hand and on the other hand, to transform the received control instructions from the ground control center into multi-channel control signals of the serial data, which is then analyzed into executable instructions; a control module for driving motor controls a turret and the motor; the sensor is arranged on the game steamboats. Compared with the prior art, the digital technology is combined with traditional real games in the system so that operational interaction that the traditional real games do not have is achieved; combining online games with the traditional real games on one hand greatly improves the interest of the traditional real games and on the other hand avoids 'addiction to network' problems easily brought by the online games.
Description
Technical field
The present invention relates to a kind of large-scale real scale game, particularly relate to a kind of large-scale real scale game in conjunction with the digitalized network technology.
Background technology
Along with constantly popularizing and develop rapidly of digitizing techniques such as computer and network, communication, a lot of fields all by with the combining of these technology, acquired better field and expanded and new product development.Common game form comprises real scale game and online game now.Wherein, large-scale real scale game is common real scale game, it is the remote control that drives by machinery and electric device, the shortcoming of this large-scale real scale game is: the player can only experience single mechanical action, each can't realize interaction each other, and this traditional real scale game mode and it are employed, and much year and is little by little being treated coldly by the market demand all without any innovation;
Another kind of common game mode is online game, and what the player was operated is virtual game object, and the game environment at its place also is virtual network environment, and its shortcoming is:
1, the player lacks actual operation feeling, particularly can't operate personally;
2, online game is random owing to operationlocation, and the very difficult control of the use of computer, therefore, the teenager is indulged, and uncontrollable.
Based on above-mentioned defective, the present invention proposes innovation mode with computer game imaging and telecontrolled model networking, combining of advanced network technology and traditional telecontrolled model, the virtual property of online game originally and the unicity of telecontrolled model have been broken through, the traditional real scale game pattern that has always followed since having broken all the year round, realized the innovation of game mode, both can keep the interest that traditional real scale game possesses, digitizing technique can be attached to aspects such as the communication of ten traditional real scale games is interactive and digital control again.
Summary of the invention
The present invention proposes the digitized real scale game ship system under a kind of network environment, its by wireless communication networks with the embedded hardware system of game ship and the data message of software control procedure, realize full-duplex communication and data/commands operation with the game control program on the server, realized digitlization network control real scale game ship system.
Digitized real scale game ship system under a kind of network environment, in network environment, realize full-duplex communication and data transaction, transmission and operation control between game ship embedded hardware system and control program and the ground control centre, this system comprises the motor of ground control centre, a plurality of game ship, sensor, isolation output, game ship and the embedded type C PLD chip in fort and the game ship, wherein:
The network port of each game ship in ground control centre and the system is connected;
Embedded hardware system in the game ship adopts the CPLD chip, adopt serial communication mode between this CPLD chip and the network port, convert the motor current state to meet the RS232 standard serial data on the one hand, on the other hand with the ground control centre control instruction that receives, convert the multi-way control signals of the serial data that meets the RS232 standard to, this serial data resolves to the executable instruction that motor and fort can be discerned through the CPLD chip again;
Described executable instruction is isolated motor and the gun turret that outputs to each game ship, drive motors control module control gun turret and motor;
Sensor is arranged in this system on each game ship, is used for the state of real-time this game ship of sensing, and with being sent to server after the conversion of induced signal through the CPLD chip, sends the foundation of control signal as the ground control centre.
Described CPLD chip further comprises frequency dividing circuit, sampling filter circuit, receiving circuit and transtation mission circuit, wherein:
Frequency dividing circuit carries out frequency division with crystal oscillator frequency, obtains the BAUD_CLK pulse, as the clock of transtation mission circuit and receiving circuit;
The ground control centre signal RXD that is received is through the sampling filter circuit, filter interfering signal, be input to the serial input terminal of the shift register of receiving circuit, in shift register, carry out becoming the RXD-DATA signal after the serial/parallel conversion and export motor control module to;
One time variable is set in receiving circuit, when the clock cycle of 16 receiving circuits arrives, judges whether the control instruction that is received is effective, if effectively, then the value of time becomes 1, begins to receive the control instruction data, the data that the receive shift register of packing into;
One time variable is set in transtation mission circuit, when the clock cycle of 16 transtation mission circuits arrives, judge whether the control instruction that sends is effective, if effectively, then the time variable value becomes 1, beginning sending controling instruction data, the game ship in ground control centre or this system, the course of work of described transtation mission circuit is the inverse process of described receiving circuit.
The clock frequency of described receiving circuit adopts 16 times of 9600HZ.
The clock frequency of described transtation mission circuit adopts 9600HZ.
Described network environment screen adopts the Wi-Fi wireless network, and the game ship in the described system is connected with the Wiport port of wireless network by the embedded radio LAN module of wireless network card (102).
What described CPLD chip was selected is the EPM7256AETI144-7 chip of ALTERA company.
Interface between described embedded radio LAN module and the CPLD chip adopts jtag interface.
This system comprises that also network transmission program comprises service end flow process and client flow process, and described network transmission program comprises service end flow process and client flow process:
The service end flow process, this flow process is installed on the ground control centre, is used to handle the network request that receives client, and this flow process may further comprise the steps:
Create a plurality of sockets according to the game ship quantity that is articulated in the system;
With a plurality of sockets of being created respectively with corresponding local address of each game ship and port binding;
Socket is set at listen mode, prepares to receive request from the client game ship;
Whether client-requested is arranged,, accept this client connection request, return a new socket corresponding to this connection if any client-requested;
Communicate with socket that returns and client;
Return, wait for next client-requested; And
Close current socket;
Client flow process, this flow process are installed on each game ship in the system, are used to realize that this game ship as client communicates by letter with the service end flow process respectively, carry out the network transmission of data, and this client flow process may further comprise the steps:
Create socket;
Server is sent out connection request;
Communicate with the ground control centre; And
Close socket.
This system also comprises the game control flow process of service end, and the game control flow process of described server end may further comprise the steps:
Whether detect game ship is connected with server end;
If connect, then begin recreation;
After the recreation beginning, receive the control operation of handle, send lever operated information in check game ship;
Simultaneously, receive the information that comes from controlled game ship in this system;
Above-mentioned two kinds of information are carried out data at server end to be handled;
Synchronous video data result.
This system comprises that also serial data and control instruction receive flow process, described serial data and control instruction receive flow process, may further comprise the steps: program begins, whether successfully reset, as denying, then begin to receive data, and the data that receive are packed in the shift register, the RXD-DATA signal is deposited in the data buffer memory by shift register.
This system comprises that also serial data and control instruction send program, described serial data and control instruction transmission flow, may further comprise the steps: program begins, whether successfully reset,, then judge the value of current TXD_CNT as not, when TXD_CNT=1, begin to send data, and data are sent to shift register, and with TXD_CNT+1; Until TXD_CNT=10, then control instruction and data send and finish, and the whole zero clearings of shift register wait for that transmitting time arrives next time.
This system comprises that also the motor-driven flow process produces the respective waveforms of drive motors according to the value of serial data RXD_DATA, the motion state of the front three control steamer of RXD_DATA, the rotary state of ensuing two control gun turrets, the rotating speed of last two control steamers is set off firecrackers in the 6th control.
The present invention compared with prior art, the present invention combines digitizing technique with traditional real scale game, realized that the not available operation of traditional in the past outdoor scene is interactive, online game and traditional real scale game are combined, promote the interest of traditional real scale game on the one hand greatly, " network addiction " problem of having avoided online game to bring easily on the other hand again is more conducive to promote, and has bigger economic and social benefit.
Description of drawings
Fig. 1 is the module map of the digitized real scale game ship system under the network environment of the present invention;
Fig. 2 is the Organization Chart of the digitized real scale game ship system under the network environment of the present invention;
Fig. 3 is the game control program flow chart of the digitized real scale game ship system control method under the network environment of the present invention;
Fig. 4 is the schematic diagram of the network data transmission serve end program of the digitized real scale game ship system control method under the network environment of the present invention;
Fig. 5 is the schematic diagram of the network data transmission client-side program of the digitized real scale game ship system control method under the network environment of the present invention;
Fig. 6 is the serial data transmitting/receiving program block diagram on the CPLD chip of the digitized real scale game ship system control method under the network environment of the present invention;
Fig. 7 is that the CPLD control instruction of the digitized real scale game ship system control method under the network environment of the present invention receives flow chart;
Fig. 8 is the serial data receiving circuit wave simulation sequential chart of the digitized real scale game ship system control system under the network environment of the present invention;
Fig. 9 is the control instruction transmission flow figure of the digitized real scale game ship system control method under the network environment of the present invention;
Figure 10 is the serial data transtation mission circuit wave simulation sequential chart of the digitized real scale game ship system control system under the network environment of the present invention;
Figure 11 is the logic diagram of the motor-driven program of the embodiment of the invention;
Figure 12 is the system clock circuit design principle figure that the embodiment of the invention adopts.
Figure 13 embodiment of the invention Wireless LAN module and the connecting circuit figure of CPLD.
The specific embodiment
Network control game ship system of the present invention utilizes the IEEE802.11b/g protocol of wireless local area network, the order that the ground control centre is sent is sent to each game ship in this system, the hardware system that each game ship utilizes embedded technology CPLD to form, the control instruction that the reception server end is sent from the IEEE802.11b/g WLAN, and convert thereof into the serial data that meets the RS232 standard, this serial data resolves to the executable instruction that motor and fort can be discerned through CPLD again, and these executable instructions are through driver drives motor and gun turrets.Game ship utilizes the rotation and the velocity of rotation of Electric Machine Control corresponding site, for example, and the rotation of the rotation direction of wheel and speed, gun turret and speed, shell emission.The network control game ship system is a full duplex communication system, in the sending controling instruction of command and control center, game ship also available sensors real-time feed back its current state to control centre, for example: the shell residue situation and the situation etc. of self being hit by a bullet.
This system block diagrams as shown in Figure 1, ground control centre 101 is by the other end of wireless network card 102 with wireless network, i.e. Wiport (each Wiport is the wireless network port on the pairing game ship of each network node in the Radio Network System just) 103; Embed CPLD chip 104 in each game ship in system, it with above-mentioned Wiport between adopt serial communication, CPLD chip 104 plays the data double-way transformation, one side can convert the motor current state to the serial data that meets the RS232 standard; On the other hand can be with the control instruction of sending from server end that receives, convert the multi-way control signals of the serial data that meets the RS232 standard to, this serial data resolves to the executable instruction that motor and fort can be discerned through CPLD again, and these executable instructions are through driver drives motor and gun turrets; By isolating output 105, control gun turret 107 and control motor 106; Sensor 109 is installed on each game ship, is used for the state of real-time this game ship of sensing, and induced signal is sent to server, send the foundation of control signal as server.
This network control game ship system framework as shown in Figure 2, this system comprises server, it is as the game control platform of network control game ship system, this server end also can connect remote-control handle; And a plurality of game ships and server carry out telecommunication by Wi-Fi wireless network communication agreement, a plurality of game ships in this system, wherein each game ship inside all comprises communication module, embedded type C PLD chip, utilizes these CPLD chip drives motors; Each game ship all is provided with an infrared inductor, be used for game ship infrared communication each other, can carry out operations such as transfer of data each other, these characteristics mainly are that the game ship that can be used for forming alliances in the network control game ship system for example transmits required data each other in game process.
Software program of the present invention is respectively the game control program of server end, server end is by the network transmission program between the game ship in wireless network communication protocol and this system, and the serial data transmitting/receiving program of the embedded type C PLD chip of game ship inside.
As shown in Figure 3, this is the game control program as the server end of game control platform, and its flow process may further comprise the steps: at first, detect game ship and whether be connected step 301 with server end; If do not connect, wait for that then game ship connects, until the game ship that has in the connection,, then begin recreation, step 302 if connect; After the recreation beginning, can accept the control operation of handle on the one hand, step 303; Send lever operated information, step 304 in check game ship; Simultaneously, also accept to come from the information of controlled game ship in this system, step 305; Above-mentioned two kinds of information (being that handle sends information, monitor message) are carried out data at server end handle step 306; Synchronous video data result, step 307; Whether recreation finishes, step 308, and present procedure finishes; Step 309; Do not finish as recreation, then return step 303 or step 304, the information data of finishing in the recreation is handled.
Actual conditions according to game ship system, the data that will transmit in the network environment are control datas since its to have volume of transmitted data little, but characteristics that transmission accuracy is had relatively high expectations, therefore, network data transmission of the present invention is selected connection-oriented ICP/IP protocol.What its implementation adopted is the socket programming, and the function call order is as follows.
The network transfer application is respectively by server, client-side program.Wherein, server may further comprise the steps: at first, create a plurality of sockets (socket), step 401 according to the game ship quantity that is articulated in the system; With a plurality of sockets of being created respectively with corresponding local address of each game ship and port binding (bind), step 402; Socket is set at listen mode (listen), prepares to receive request, step 403 from the client game ship; Whether client-requested, step 404 are arranged; If any client-requested, accept this client connection request, return a new socket (accept), step 405 corresponding to this connection; Communicate (send/recv), step 406 with socket that returns and client; Return, wait for next client-requested, step 407; Close current socket, step 408.Because in the network control game ship system of the present invention, be connected with a plurality of online game steamers, they have the different network address and port respectively, therefore, need create socket respectively to each game ship in the system, each socket is carried out the oracle listener of server section according to above-mentioned flow process.Client-side program, this program is installed on each game ship in the system, is used to realize that this game ship as client communicates by letter with serve end program respectively, carries out the network transmission of data, this client-side program may further comprise the steps: create socket (socket), step 501; Server is sent out connection request (connect), step 502; Communicate with server end (send/recv); Step 503; Close socket, step 504.
Every game ship of client all is provided with the CPLD chip, and in this chip, software section comprises the serial data transmitting/receiving program, and this program is provided with for the two-way communication between the wireless built module CPLD that realizes server end and each game ship of client.It may further comprise the steps: the data that receive the descending serial line interface of this CPLD chip; And, the steamer status information is packaged into serial data and is connected to up serial line interface.The hardware components of this CPLD chip adopts the serial data transceiver, and its block diagram as shown in Figure 6.Mainly constitute, that is: frequency dividing circuit by four parts; The sampling filter circuit; Receiving circuit and radiating circuit.Operation principle is as follows: frequency dividing circuit carries out frequency division with crystal oscillator frequency, obtains the BAUD_CLK pulse, as the clock of transtation mission circuit and receiving circuit.The signal RXD that receives filters interfering signal through the over-sampling rate wave circuit, obtains RXD_SYNC, is input to the serial input terminal of the shift register of receiving circuit.In shift register, go here and there and change after become the RXD-DATA signal and export motor control module to.
In receiving circuit, because the BAUD_CLK clock is 16 times of actual reception baud rate 9600, so receive the one digit number certificate every 16 BAUD_CLK systems.A variable TXD_CNT is set, when 16 BAUD_CLK arrive, judges whether reception XMIT_CMD is effective,, begin to receive if effectively, then the value of TXD_CNT becomes 1.Control instruction receives flow process as shown in Figure 7, and program begins, whether successfully reset? as not, then begin to receive data, and the data that receive are packed in the shift register, by shift register the RXD-DATA signal is deposited in the data buffer memory.The signal that receives is mainly used to control the exercises of steamer, as: advance, retreat, launch, rotate fort etc.Therefore also to decipher and produce control signal corresponding.Control instruction receives program flow diagram as shown in Figure 7, and its wave simulation result as shown in Figure 8.
All kinds of sensors is installed on the game ship, in order to the state of reflection steamer, as: by the energy information of the number of times of projectile impacts, steamer, position etc.These information will pass back to server end by WLAN, in order to work out various recreation.
The serial data transtation mission circuit is the inverse process of serial data receiving circuit, and it is packaged into the serial data of RS232 standard to the TXD_DATA data through displacement, and that the clock of different is transtation mission circuit adopts is not 9600*16HZ, but 9600HZ.Transtation mission circuit is done 16 frequency divisions with BAUD_CLK, obtains the pulse of 9600HZ, as tranmitting data register.Transtation mission circuit is packaged into the serial data that meets the RS232 standard to the signal (being the TXD_DATA data among Fig. 6) of sensor output through displacement, passes back to server end by Wireless LAN module.Fig. 9 is the serial data transtation mission circuit software flow pattern of working out with VHDL language among the CPLD, control instruction transmission flow program begins, whether successfully reset? as denying, then judge the value of current TXD_CNT, when TXD_CNT=1, begin to send data, and data are sent to shift register, and with TXD_CNT+1; Until TXD_CNT=10, then control instruction and data send and finish, and the whole zero clearings of shift register wait for that transmitting time arrives next time.Figure 10 is its emulation sequential chart, and RESET, XMIT_CMD, BAUD_CLK, TXDATA are input signals; TXD is an output signal; TXD_CNT, TXD_SHIFT are intermediate variables.
RESET is a reset signal, and system resets when RESET=1, otherwise program is normally moved.
BAUD_CLK is the system clock behind the frequency division.
The data of TXDATA for sending.
XMIT_CMD allows flag bit for sending, and after a pulse appearred in XMIT_CMD, TXD_CNT began counting, and began to send data in the next cycle.
As shown in figure 11, be the logic diagram of motor-driven program, data RXDATA10011000 is converted into serial data RXD through behind the transtation mission circuit.The motor-driven program is the respective waveforms that produces drive motors according to the value of data RXD_DATA.The motion conditions of the front three control steamer of RXD_DATA, the rotation situation of ensuing two control gun turrets, the 6th control is set off firecrackers, the rotating speed of last two control steamers, 00:0.25,01:0.5,10:0.75,11:1 (the wherein dutycycle of the numeral motor-driven waveform of back).
Below by a specific embodiment, the specific design scheme of game ship hardware circuit is described.
The hardware circuit design of game ship mainly comprises: system clock design, jtag interface design, embedded LAN module, CPLD design, Interface design and drive circuit design.The rate setting that system's serial data transmits is 9600HZ, and crystal oscillator is chosen as 11.05926MHZ, just can produce the clock of 9600*16HZ like this through 72 frequency divisions.That CPLD selects is the EPM7256AETI144-7 of ALTERA company.The connected mode of clock circuit and CPLD as shown in figure 12.The power supply VCC of clock circuit connects the power supply of CPLD chip; The ground of clock connects the ground of CPLD chip; The clock pulses of clock circuit produces the clock signal input terminal that end CLK connects the CPLD chip.
Jtag interface is used for downloading to CPLD, the connection that connected mode takes ALTERA company to be recommended, and the interface between embedded radio LAN module and the CPLD is the key of hardware circuit design, its connected mode is as shown in figure 13.
Claims (12)
1. the digitized real scale game ship system under the network environment, in network environment, realize full-duplex communication and data transaction, transmission and operation control between game ship embedded hardware system and control program and the ground control centre, this system comprises the motor of ground control centre, a plurality of game ship, sensor, isolation output, game ship and the embedded type C PLD chip in fort and the game ship, wherein:
The network port of each game ship in ground control centre and the system is connected;
Embedded hardware system in the game ship adopts the CPLD chip, adopt serial communication mode between this CPLD chip and the network port, convert the motor current state to meet the RS232 standard serial data on the one hand, on the other hand with the ground control centre control instruction that receives, convert the multi-way control signals of the serial data that meets the RS232 standard to, this serial data resolves to the executable instruction that motor and fort can be discerned through the CPLD chip again;
Described executable instruction outputs to the motor and the gun turret of each game ship, drive motors control module control gun turret and motor;
Sensor is arranged in this system on each game ship, is used for the state of real-time this game ship of sensing, and with being sent to server after the conversion of induced signal through the CPLD chip, sends the foundation of control signal as the ground control centre.
2. the digitized real scale game ship system under the network environment as claimed in claim 1 is characterized in that, described CPLD chip further comprises frequency dividing circuit, sampling filter circuit, receiving circuit and transtation mission circuit, wherein:
Frequency dividing circuit carries out frequency division with crystal oscillator frequency, obtains the BAUD_CLK pulse, as the clock of transtation mission circuit and receiving circuit;
The ground control centre signal RXD that is received is through the sampling filter circuit, filter interfering signal, be input to the serial input terminal of the shift register of receiving circuit, in shift register, carry out becoming the RXD_DATA signal after the serial/parallel conversion and export motor control module to;
One time variable is set in receiving circuit, when the clock cycle of 16 receiving circuits arrives, judges whether the control instruction that is received is effective, if effectively, then the value of time becomes 1, begins to receive the control instruction data, the data that the receive shift register of packing into;
One time variable is set in transtation mission circuit, when the clock cycle of 16 transtation mission circuits arrives, judge whether the control instruction that sends is effective, if effectively, then the time variable value becomes 1, beginning sending controling instruction data, the game ship in ground control centre or this system, the course of work of described transtation mission circuit is the inverse process of described receiving circuit.
3. as the digitized real scale game ship system under the network environment as described in the claim 2, it is characterized in that the clock frequency of described receiving circuit adopts 16 times of 9600HZ.
4. as the digitized real scale game ship system under the network environment as described in the claim 2, it is characterized in that the clock frequency of described transtation mission circuit adopts 9600HZ.
5. the digitized real scale game ship system under the network environment as claimed in claim 1, it is characterized in that, described network environment adopts the Wi-Fi wireless network, and the game ship in the described system is connected with the Wiport port of wireless network by the embedded radio LAN module of wireless network card (102).
6. the digitized real scale game ship system under the network environment as claimed in claim 1 is characterized in that, what described CPLD chip was selected is the EPM7256AETI144-7 chip of ALTERA company.
7. the digitized real scale game ship system under the network environment as claimed in claim 5 is characterized in that, the interface between described embedded radio LAN module and the CPLD chip adopts jtag interface.
8. the digitized real scale game ship system under the network environment as claimed in claim 1 is characterized in that this system also comprises network transmission program, and described network transmission program comprises service end flow process and client flow process:
The service end flow process, this flow process is installed on the ground control centre, is used to handle the network request that receives client, and this flow process may further comprise the steps:
Create a plurality of sockets according to the game ship quantity that is articulated in the system;
With a plurality of sockets of being created respectively with corresponding local address of each game ship and port binding;
Socket is set at listen mode, prepares to receive request from the client game ship;
Whether client-requested is arranged,, accept this client connection request, return a new socket corresponding to this connection if any client-requested;
Communicate with socket that returns and client;
Return, wait for next client-requested; And
Close current socket;
Client flow process, this flow process are installed on each game ship in the system, are used to realize that this game ship as client communicates by letter with the service end flow process respectively, carry out the network transmission of data, and this client flow process may further comprise the steps:
Create socket;
Server is sent out connection request;
Communicate with the ground control centre; And
Close socket.
9. the digitized real scale game ship system under the network environment as claimed in claim 1 is characterized in that, this system also comprises the game control flow process of service end, and the game control flow process of described service end may further comprise the steps:
Whether detect game ship is connected with service end;
If connect, then begin recreation;
After the recreation beginning, receive the control operation of handle, send lever operated information in check game ship;
Simultaneously, receive the information that comes from controlled game ship in this system;
Above-mentioned two kinds of information are carried out data in service end to be handled;
Synchronous video data result.
10. the digitized real scale game ship system under the network environment as claimed in claim 1, it is characterized in that, this system comprises that also serial data and control instruction receive flow process, described serial data and control instruction receive flow process, and whether may further comprise the steps: program begins, successfully reset, as denying, then begin to receive data, and the data that receive are packed in the shift register, the RXD_DATA signal is deposited in the data buffer memory by shift register.
11. the digitized real scale game ship system under the network environment as claimed in claim 1, it is characterized in that this system comprises that also serial data and control instruction send program, described serial data and control instruction send program, may further comprise the steps: program begins, whether successfully reset,, then judge the value of current variable TXD_CNT as not, when TXD_CNT=1, begin to send data, and data are sent to shift register, and with TXD_CNT+1; Until TXD_CNT=10, then control instruction and data send and finish, and the whole zero clearings of shift register wait for that transmitting time arrives next time.
12. the digitized real scale game ship system under the network environment as claimed in claim 1, it is characterized in that, the motor-driven flow process produces the respective waveforms of drive motors according to the value of serial data RXD_DATA, the motion state of the front three control steamer of RXD_DATA, the rotary state of ensuing two control gun turrets, the rotating speed of last two control steamers is set off firecrackers in the 6th control.
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