CN112565737B - Networking control method for three-dimensional display - Google Patents
Networking control method for three-dimensional display Download PDFInfo
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- CN112565737B CN112565737B CN202011385465.5A CN202011385465A CN112565737B CN 112565737 B CN112565737 B CN 112565737B CN 202011385465 A CN202011385465 A CN 202011385465A CN 112565737 B CN112565737 B CN 112565737B
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- 230000006855 networking Effects 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The invention discloses a networking control method of a three-dimensional display. The method comprises the following steps: the control command pcCmd is sent through a designated networking communication serial port number COM_ESP8266, and communication command end identifiers 0x0d and 0x0a of the communication module are automatically added after the pcCmd; starting a special hardware timer ESP_TMR_ID for networking communication, and setting the timing time as iTimeOut; delaying for 1 millisecond, and executing Idle polling function Idle (); checking whether the timer esp_tmr_id times out; checking whether the networking communication serial port receives data information sent by the networking chip; and finally, delaying iDelay_ms to ensure that the system enters a stable state, and setting the value of iDelay_ms to 0. The invention improves the reliability and stability of communication between the three-dimensional display and the networking chip.
Description
Technical Field
The invention relates to a networking control method of a three-dimensional display, and belongs to the technical field of three-dimensional LED stereoscopic display.
Background
In the running process of the three-dimensional display, a user may change the animation effect, the text information to be displayed and the like in real time, and the modification purpose is the best choice through the mobile phone terminal APP, the applet and the WEB, so that the three-dimensional display is required to be provided with a chip which can be connected with the Internet. The specific networking mode is not limited by the WIFI network and the mobile data network, and the NBIOT mobile data network of the Internet of things is limited in communication bandwidth, an operator charges flow rate fees, networking equipment is expensive and the like, so that the wireless communication system is not suitable for a three-dimensional display. Because the three-dimensional display has the characteristics of basically fixed use places and larger use data flow, the networking equipment of the three-dimensional display is preferably a WIFI module.
At present, most three-dimensional displays adopt STM32 series singlechips as main control chips, ESP8266 is used as a networked WIFI module, and compared with a networking mechanism, a TcpIP communication protocol and a Socket network Socket programming interface system of a PC, the communication assembly and a communication program of the current singlechips and networking equipment are still not mature, related reference materials and source programs are fewer, the program design of related developers is relatively laborious, the designed program codes are lengthy, and the problems of low reliability and stability of communication exist.
Disclosure of Invention
The invention aims to provide a networking control method for a three-dimensional display, which aims to solve the problems in the prior art.
A three-dimensional stereoscopic display networking control method, comprising the following steps:
step one, a control command pcCmd is sent through a designated networking communication serial number COM_ESP8266, and communication command end identifiers 0x0d and 0x0a of a communication module are automatically added after the pcCmd;
step two, starting a special hardware timer ESP_TMR_ID for networking communication, and setting the timing time as iTimeOut;
step three, delaying for 1 millisecond, and executing Idle polling function Idle ()' of the three-dimensional display in the time;
step four, checking whether a timer ESP_TMR_ID is overtime, if so, the function does not receive a successful identification of command execution of the networking chip within a specified time, the function execution fails, 0 is returned, and the function execution is ended; if the time-out is not over, executing the fifth step;
step five, checking whether the networking communication serial port receives data information sent by the networking chip, if yes, comparing whether the information is pAckStr, if yes, successfully executing the function, returning to step 1, and ending the function execution, wherein the matching method of the data information sent by the networking chip and the pAckStr is as follows: checking whether the data from the networking chip is received in the networking communication serial port receiving data buffer area, and if not, directly returning to the step three; if the character number iPos of checking the pAckStr is set to 0, reading one byte from the received data buffer area, checking whether the character number iPos is the first byte of the pAckStr, if not, directly returning to the step three, setting the iPos value to be 1, judging whether the iPos value is the length value of the pAckStr character string, if so, indicating that the complete pAckStr character string content has been received, executing successfully, returning the function to 1 and ending; if not, returning to the third step, under the condition that the networking communication serial port receiving data buffer area is not empty, continuing to read one byte from the receiving data buffer area, checking whether the byte is the 2 nd byte of pAckStr, if not, setting the iPos value to 0, then directly returning to the third step, if so, setting the iPos value to be added with 1, and simultaneously judging whether the iPos value is the pAckStr character string length value, wherein the process is executed circularly all the time;
and step six, finally, delaying iDelay_ms to ensure that the system enters a stable state, and setting the value of iDelay_ms to 0.
Further, in the third step, the Idle polling function Idle () includes the following information: if the user key is set, detecting user key information of the system; if the infrared remote controller is arranged, detecting information received by infrared of the system; if the network communication content is detected to be received, unpacking and analyzing the data packet are carried out; if the system is provided with a capacitive display screen, carrying out identification of key values of keys of users of the capacitive display screen; if the system has an input device including a temperature sensor, an input value update calculation is performed.
Further, the parameter interfaces are as follows:
pcCmd is a control command sent to the networking chip by the main control chip;
the pAckStr is the content of a character string which is successfully executed by the command which the master control chip expects the networking chip to give a reply;
the iTimeOut is the time of waiting for the networking chip to reply to the pAckStr by the set master control chip, and the unit is milliseconds;
the iRetry is the number of times that the master control chip repeatedly sends Cmd if the master control chip does not receive pAckStr in usTimeOut, namely, if the execution of the networking chip command fails;
iDelay_ms is delay time after successful command execution, and the unit is millisecond;
the bPrintf is whether or not command execution information is output to the information print serial port.
The invention has the main advantages that: the invention provides a networking control method of a three-dimensional display, by which a program designer can realize efficient call of a networking chip, and the control process of sending an instruction to the networking chip and waiting for the reply of execution result information is simplified, so that the reliability and stability of communication between the three-dimensional display and the networking chip are improved.
Drawings
Fig. 1 is a method flow chart of a three-dimensional stereoscopic display networking control method of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a three-dimensional stereoscopic display networking control method includes the following steps:
step one, a control command pcCmd is sent through a designated networking communication serial number COM_ESP8266, and communication command end identifiers 0x0d and 0x0a of a communication module are automatically added after the pcCmd;
step two, starting a special hardware timer ESP_TMR_ID for networking communication, and setting the timing time as iTimeOut;
step three, delaying for 1 millisecond, and executing Idle polling function Idle ()' of the three-dimensional display in the time;
step four, checking whether a timer ESP_TMR_ID is overtime, if so, the function does not receive a successful identification of command execution of the networking chip within a specified time, the function execution fails, 0 is returned, and the function execution is ended; if the time-out is not over, executing the fifth step;
step five, checking whether the networking communication serial port receives data information sent by the networking chip, if yes, comparing whether the information is pAckStr, if yes, successfully executing the function, returning to step 1, and ending the function execution, wherein the matching method of the data information sent by the networking chip and the pAckStr is as follows: checking whether the data from the networking chip is received in the networking communication serial port receiving data buffer area, and if not, directly returning to the step three; if the character number iPos of checking the pAckStr is set to 0, reading one byte from the received data buffer area, checking whether the character number iPos is the first byte of the pAckStr, if not, directly returning to the step three, setting the iPos value to be 1, judging whether the iPos value is the length value of the pAckStr character string, if so, indicating that the complete pAckStr character string content has been received, executing successfully, returning the function to 1 and ending; if not, returning to the third step, under the condition that the networking communication serial port receiving data buffer area is not empty, continuing to read one byte from the receiving data buffer area, checking whether the byte is the 2 nd byte of pAckStr, if not, setting the iPos value to 0, then directly returning to the third step, if so, setting the iPos value to be added with 1, and simultaneously judging whether the iPos value is the pAckStr character string length value, wherein the process is executed circularly all the time;
and step six, finally, delaying iDelay_ms to ensure that the system enters a stable state, and setting the value of iDelay_ms to 0 in most applications.
Further, in the third step, the Idle polling function Idle () includes the following information: if the user key is set, detecting user key information of the system; if the infrared remote controller is arranged, detecting information received by infrared of the system; if the network communication content is detected to be received, unpacking and analyzing the data packet are carried out; if the system is provided with a capacitive display screen, carrying out identification of key values of keys of users of the capacitive display screen; if the system has an input device including a temperature sensor, an input value update calculation is performed.
Further, the important interface function ESP_SendAT_WaitResponse is used for sending a control command to the networking chip by the main control chip, and if the main control chip receives a designated command execution success character string replied from the networking chip within designated reply time, the command execution is successful, and the function returns true; if the specified reply content is not received within the specified time, retransmitting according to the user requirement, and if the execution is not successful finally, returning to false. Meanwhile, the user can set whether to output the command execution result through the networking information printing serial port. The specific parameter interfaces are as follows:
pcCmd is a control command sent to the networking chip by the main control chip;
the pAckStr is the content of a character string which is successfully executed by the command which the master control chip expects the networking chip to give a reply;
the iTimeOut is the time of waiting for the networking chip to reply to the pAckStr by the set master control chip, and the unit is milliseconds;
the iRetry is the number of times that the master control chip repeatedly sends Cmd if the master control chip does not receive pAckStr in usTimeOut, namely, if the execution of the networking chip command fails;
iDelay_ms is delay time after successful command execution, and the unit is millisecond;
the bPrintf is whether or not command execution information is output to the information print serial port.
The following are specific examples:
the invention takes ESP8266 networking chip as an example to illustrate the whole implementation process of the networking control component, and other networking chips only need to simply modify the corresponding networking command content.
The main control chip can realize that the networking chip is connected to the appointed WIFI by calling the following 4 commands, establishes TCP connection with the appointed server port, and then sets the connection as a transparent transmission mode and enters the transparent transmission mode:
1、ESP_SendAT_WaitResponse(“AT+CWJAP＝WifiName,123456789”,“OK\r\n”,15000,1,0,true)；
the content of the transfer parameters is as follows:
pcCmd＝“AT+CWJAP＝WifiName,123456789”
pAckStr＝“OK\r\n”
iTimeOut＝15000
iRetry＝1
iDelay_ms＝0
bPrintf＝true
the function of the command is that the master control chip sends an instruction "at+cwijap=wifiname, 123456789" to the networking chip, the networking chip is required to be connected to a hot spot named "WifiName" by a password "123456789", the networking chip is expected and monitored to be successfully executed and a data string "ok\r\n" is replied, the monitoring duration is 15 seconds, the instruction is sent once, and the connection information is output from the information printing serial port.
2、ESP_SendAT_WaitResponse("AT+CIPSTART＝TCP,192.168.0.1,8887”,“OK\r\n”,10000,1,0,true)；
The content of the transfer parameters is as follows:
pcCmd＝“AT+CIPSTART＝TCP,192.168.0.1,8887”
pAckStr＝“OK\r\n”
iTimeOut＝10000
iRetry＝1
iDelay_ms＝0
bPrintf＝true
the function of the command is that the master chip sends an instruction "at+cipstart=tcp, 192.168.0.1,8887" to the networking chip, the networking chip is required to establish a TCP connection with the server 8887 port with an IP address of 192.168.0.1, the networking chip is expected and monitored to execute successfully and reply to the data string "ok\r\n", the monitoring duration is 10 seconds, the instruction is sent only once, and the connection information is output from the information printing serial port.
3、ESP_SendAT_WaitResponse(“AT+CIPMODE＝1",“OK\r\n”,5000,3,0,true)；
The content of the transfer parameters is as follows:
pcCmd＝“AT+CIPMODE＝1”
pAckStr＝“OK\r\n”
iTimeOut＝5000
iRetry＝3
iDelay_ms＝0
bPrintf＝true
the command has the effects that the main control chip sends an instruction of 'AT+CIPLMODE=1' to the networking chip, the TCP connection just established between the networking chip and the server is required to be transmitted in a transparent transmission mode, the successful execution of the networking chip is expected and monitored, the data string 'OK\r\n' is replied, the monitoring duration is 5 seconds, the main control chip sends the instruction for 3 times AT the interval of 5 seconds under the condition that the successful execution data string is not received, and the connection information is output from the information printing serial port.
4、ESP_SendAT_WaitResponse(“AT+CIPSEND",“OK\r\n”,5000,3,100,true)；
The content of the transfer parameters is as follows:
pcCmd＝“AT+CIPSEND”
pAckStr＝“OK\r\n”
iTimeOut＝5000
iRetry＝3
iDelay_ms＝100
bPrintf＝true
the command has the function that the main control chip sends an instruction of 'AT+CIPSED' to the networking chip, the networking chip is required to enter a transparent transmission mode, the networking chip is expected and monitored to be successfully executed and the data string 'OK\r\n' is replied, the monitoring duration is 5 seconds, the main control chip sends the instruction for 3 times AT the interval of 5 seconds AT most under the condition that the successful execution data string is not received, and the connection information is output from the information printing serial port after 100 milliseconds of delay is carried out when the command is finished.
Claims (2)
1. The networking control method for the three-dimensional display is characterized by comprising the following steps of:
step one, a control command pcCmd is sent through a designated networking communication serial number COM_ESP8266, and communication command end identifiers 0x0d and 0x0a of a communication module are automatically added after the pcCmd;
step two, starting a special hardware timer ESP_TMR_ID for networking communication, and setting the timing time as iTimeOut;
step three, delaying for 1 millisecond, and executing Idle polling function Idle ()' of the three-dimensional display in the time;
step four, checking whether a timer ESP_TMR_ID is overtime, if so, the function does not receive a successful identification of command execution of the networking chip within a specified time, the function execution fails, 0 is returned, and the function execution is ended; if the time-out is not over, executing the fifth step;
step five, checking whether the networking communication serial port receives data information sent by the networking chip, if yes, comparing whether the information is pAckStr, if yes, successfully executing the function, returning to step 1, and ending the function execution, wherein the matching method of the data information sent by the networking chip and the pAckStr is as follows: checking whether the data from the networking chip is received in the networking communication serial port receiving data buffer area, and if not, directly returning to the step three; if the character number iPos of checking the pAckStr is set to 0, reading one byte from the received data buffer area, checking whether the character number iPos is the first byte of the pAckStr, if not, directly returning to the step three, setting the iPos value to be 1, judging whether the iPos value is the length value of the pAckStr character string, if so, indicating that the complete pAckStr character string content has been received, executing successfully, returning the function to 1 and ending; if not, returning to the third step, under the condition that the networking communication serial port receiving data buffer area is not empty, continuing to read one byte from the receiving data buffer area, checking whether the byte is the 2 nd byte of pAckStr, if not, setting the iPos value to 0, then directly returning to the third step, if so, setting the iPos value to be added with 1, and simultaneously judging whether the iPos value is the pAckStr character string length value, wherein the process is executed circularly all the time;
step six, finally, delaying iDelay_ms to ensure that the system enters a stable state, and setting the value of iDelay_ms to 0;
the parameter interfaces are as follows:
pcCmd is a control command sent to the networking chip by the main control chip;
the pAckStr is the content of a character string which is successfully executed by the command which the master control chip expects the networking chip to give a reply;
the iTimeOut is the time of waiting for the networking chip to reply to the pAckStr by the set master control chip, and the unit is milliseconds;
the iRetry is the number of times that the master control chip repeatedly sends Cmd if the master control chip does not receive pAckStr in usTimeOut, namely, if the execution of the networking chip command fails;
iDelay_ms is delay time after successful command execution, and the unit is millisecond;
bPrintf is whether command execution information is output to the information printing serial port;
ESP_SendAT_WaitResponse(“AT+CWJAP＝WifiName,123456789”,“OK\r\n”,15000,1,0,true)；
the content of the transfer parameters is as follows:
pcCmd＝“AT+CWJAP＝WifiName,123456789”
pAckStr＝“OK\r\n”
iTimeOut＝15000
iRetry＝1
iDelay_ms＝0
bPrintf＝true
the function of the command is that the master control chip sends an instruction "at+cwijap=wifiname, 123456789" to the networking chip, the networking chip is required to be connected to a hot spot named "WifiName" by a password "123456789", the networking chip is expected and monitored to be successfully executed and a data string "ok\r\n" is replied, the monitoring duration is 15 seconds, the instruction is sent once, and the connection information is output from the information printing serial port.
2. The networking control method for three-dimensional displays according to claim 1, wherein in step three, the Idle polling function Idle () includes the following information: if the user key is set, detecting user key information of the system; if the infrared remote controller is arranged, detecting information received by infrared of the system; if the network communication content is detected to be received, unpacking and analyzing the data packet are carried out; if the system is provided with a capacitive display screen, carrying out identification of key values of keys of users of the capacitive display screen; if the system has an input device including a temperature sensor, an input value update calculation is performed.
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