Implementation method of wide-narrow-band dual-mode cluster locomotive station

Abstract

The invention discloses an implementation method of a wide-narrow band dual-mode cluster locomotive station, and belongs to rail transit digital cluster wireless communication equipment. According to the method, a dual-mode cluster locomotive station is used as an operation platform, and based on a TETRA channel machine and an LTE channel machine, dual-mode cluster APP software composed of a database management module, a locomotive station self-inspection module, a position management module, a log management module, a channel machine control module and interface display management is pre-installed in the dual-mode cluster locomotive station. The dual-mode cluster locomotive station is composed of a control box and a host, the control box comprises a control unit, a display operation unit, a loudspeaker, a monophone and a key unit, the host comprises a power supply unit, a switching unit, a TETRA channel machine and an LTE channel machine, and the dual-mode cluster locomotive station is used for achieving the function of the wide-narrow band dual-mode cluster locomotive station. And the requirement of a wireless private network solution for transition from TETRA to LTE in the market is met.

Description

Technical Field

[0001] The present invention relates to rail transit digital cluster wireless communication equipment, and in particular to a method for realizing a wide-narrowband dual-mode cluster locomotive station based on LTE and TETRA technologies. Background Art

[0002] At present, most of the lines in the rail transit industry are based on TETRA private network technology, using TETRA narrowband cluster locomotive stations. With the vigorous development of wireless private network solutions based on the LTE system and the fact that old lines have reached the end of their operating cycle and will face the transformation of old lines, the market is in urgent need of wireless private network solutions from TETRA to LTE. Therefore, on the basis of consolidating traditional TETRA private network communications, it has become an urgent need to expand wide- and narrow-band dual-mode private network communication products based on LTE technology. Summary of the invention

[0003] In view of the current status of the prior art and the existing problems, the purpose of the present invention is to develop a method for realizing a wide-narrowband dual-mode cluster locomotive station, which integrates TETRA and LTE in the locomotive station, supports simultaneous access to the TETRA and LTE dual-core network environment, and provides a dual-mode cluster locomotive station solution for the field of wireless private network applications.

[0004] The technical solution adopted by the present invention is: a method for realizing a wide-narrowband dual-mode cluster locomotive station is to use a dual-mode cluster locomotive station as an operating platform, based on a TETRA channel machine and an LTE channel machine, and pre-install a dual-mode cluster APP software composed of a database management module, a locomotive station self-check module, a location management module, a log management module, a channel machine control module and an interface display management in the dual-mode cluster locomotive station.

[0005] The database management module adopts SQLite database and uses QSqlDatabase and QSqlQuery classes provided in QT. The database management module is a separate thread. In the thread, the database management module completes the database read and write operation process and receives the access to the database by the background program through the slot function.

[0006] When the dual-mode cluster locomotive station operates normally, the locomotive station self-check module completes the timing detection process, and regularly detects whether the voltage and temperature are beyond the normal range. If they are beyond the normal range, an alarm will be generated and the alarm information will be sent to the dispatch server.

[0007] The position management module completes the position verification process during the operation of the dual-mode cluster locomotive station. When the locomotive station displays an incorrect position, the driver manually presses the position verification button to perform position verification. When the train fails to update the position information in time when it changes from the main line to the non-main line or from the non-main line to the main line, the position management module executes the manual transfer process, and the driver operates the manual transfer to set the train position.

[0008] The log management module records and manages the locomotive power on / off information, key operation information, and abnormal exit information, executes the process of storing log information in logtxt1, receives the signal of the background program writing log through the slot function, and then stores the log information in the logtxt1 file, and the file is saved in a fixed location.

[0009] The channel machine control module uses the main control unit of the locomotive station to control the channel machine, sends the AT command to the switching unit, and the switching unit executes the parsing process. After the parsing process by the switching unit, the AT command is sent to the designated TETRA channel machine or LTE channel machine. After waiting for the channel machine to respond, the switching unit sends the response AT command data back to the main control unit.

[0010] The interface display management is after the main control unit program of the locomotive station is started. When the user operates a button, different messages are triggered. The interface display management process displays different interface information according to different button messages.

[0011] The beneficial effects of the present invention are: adopting the fusion of LTE and TETRA wide and narrow bands solves the problem of wireless private network solutions in the market transition from TETRA to LTE and meets market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a circuit connection diagram of a wide-narrowband dual-mode cluster locomotive station of the present invention; Figure 2 It is the overall software block diagram of the present invention; Figure 3 A flowchart of database reading and writing operations of the database management module of the present invention; Figure 4 It is a timing detection flow chart of the locomotive self-check module of the present invention; Figure 5 It is a flow chart of position verification of the position management module of the present invention; Figure 6 A manual group transfer flow chart of the location management module of the present invention; Figure 7 The log information of the log management module of the present invention is stored in the logtxt1 flow chart; Figure 8The switching unit analysis processing flow chart of the channel machine control module of the present invention; Fig. 9 It is the interface management flow chart of the present invention; Fig.10 It is a system connection block diagram of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Reference Figure 1 The broadband and narrowband dual-mode cluster locomotive station is composed of a control box and a host, wherein the control box includes a control unit, a display operation unit, a speaker, a handset, and a button unit, and the host includes a power supply unit, a switching unit, a TETRA channel machine, and an LTE channel machine; the control unit is connected to the display operation unit to realize the interface display and operation functions, is connected to the button unit to realize the button control function, is connected to the speaker to realize the playback of prompt sounds and call sounds, and is connected to the handset to realize the function of audio collection during calls; the switching unit is connected to the power supply unit to power the dual-mode cluster locomotive station; is connected to the LTE channel machine to realize the broadband cluster function; is connected to the TETRA channel machine to realize the narrowband cluster function; the control box is connected to the host through the control interface to realize the channel machine AT command transmission function, is connected through the power interface for the host to power the control box, and is connected through the audio interface to realize audio transmission.

[0015] Reference Figure 2 The software of the present invention is always composed of interface display management and background programs, wherein the background programs include a locomotive station self-check module, a position management module, a log management module, a channel machine control module, and a database management module; wherein the interface display management is used as the 1st, 2nd, and 3rd level interfaces in the display business processing process, and receives operation input; the locomotive station self-check module of the background program is used to regularly detect whether the voltage and temperature are beyond the normal range during the normal operation of the locomotive station; the position management module is used to update the position information of the locomotive station; the log management module encapsulates the object m_File of the QFile class through the QLogFile class to realize the record management of the power on and off information, key operation information, and abnormal exit information; the channel machine control module is used to control the TETRA channel machine and the LTE channel machine respectively to complete the dual-mode interaction process.

[0016] The implementation method of the wide- and narrow-band dual-mode cluster locomotive station is to use the dual-mode cluster locomotive station as the operating platform, based on the TETRA channel machine and the LTE channel machine, and pre-install the dual-mode cluster locomotive station with the dual-mode cluster APP software consisting of a database management module, a locomotive station self-check module, a location management module, a log management module, a channel machine control module and an interface display management.

[0017] The database management module uses SQLite database and QSqlDatabase and QSqlQuery classes provided by QT. The database management module is a separate thread. In the thread, the database management module completes the database read and write operation process and receives the access to the database from the background program through the slot function. The slot function receives the access to the database from other threads. The database includes tables that record received calls, missed calls, dialed calls, basic settings, short messages and other information.

[0018] When the dual-mode cluster locomotive is operating normally, the locomotive self-check module completes the timed detection process to regularly detect whether the voltage and temperature are beyond the normal range. If they are beyond the normal range, an alarm will be generated and the alarm information will be sent to the dispatch server. At the same time, an alarm icon will be displayed on the interface.

[0019] The position management module completes the position verification process during the operation of the dual-mode cluster locomotive station. The dual-mode cluster locomotive station may not receive the position update information in time due to weak signals and other reasons during operation. When the locomotive station displays an incorrect position, the driver manually presses the position verification button to perform position verification. When the train fails to update the position information in time when it changes from the main line to the non-main line or from the non-main line to the main line, the position management module executes the manual transfer process, and the driver operates the manual transfer to set the train position.

[0020] The log management module records and manages the locomotive power on and off information, key operation information, and abnormal exit information, executes the process of storing log information in logtxt1, receives the log write signal through the slot function, and then stores the log information in the logtxt1 file. The file is saved in a fixed location.

[0021] The channel machine control module uses the main control unit of the locomotive station to control the channel machine, sends the AT command to the switching unit, and the switching unit executes the parsing process. After the parsing process by the switching unit, the AT command is sent to the designated TETRA channel machine or LTE channel machine. After waiting for the channel machine to respond, the switching unit sends the response AT command data back to the main control unit.

[0022] Interface display management is after the main control unit program of the locomotive station is started. When the user operates the button, different messages are triggered. The interface display management process displays different interface information according to different button messages, including the main interface, setting interface, call interface, menu interface, call record, and device information.

[0023] Reference Figure 3 ,In the database management module, the database read and write operation process performs the following operations: After the thread starts, it reads the basic information table, and then starts to receive signals to trigger the slot function. After the signal is triggered, it determines the signal type. If the signal type is read, it determines the specific table to be read, and then reads the information in the table; if the signal type is write, it determines the specific table to be written, and then writes the information to the table.

[0024] Reference Figure 4 In the locomotive self-check module, the timing check process performs the following operations: After starting the test, the locomotive self-test module determines whether the detected temperature and voltage exceed the specified range. If not, it further determines whether the locomotive has had a temperature and voltage alarm before. If there is no temperature and voltage alarm, no processing is done and the self-test ends. If it is determined that the locomotive has had a temperature and voltage alarm before, the locomotive sends an alarm cancellation message to the dispatch server, and then determines whether a response message from the dispatch is received. If no response message from the dispatch is received, it further determines whether the three retransmissions are completed. If not, the locomotive sends an alarm cancellation message to the dispatch server. If it is completed, the alarm message fails to be sent. , the self-check is over; if it is determined that a response message from the dispatch is received, the interface is updated, the alarm prompt is cancelled on the standby interface, and the self-check is over; if it is determined that the temperature and voltage are detected to exceed the specified range, the locomotive station sends the alarm information to the dispatch server, and then determines whether a response message from the dispatch is received. If no response message from the dispatch is received, it further determines whether the three retransmissions are over. If not, the locomotive station sends an alarm message to the dispatch server. If it is over, the sending of the alarm message fails, and the self-check is over; if it is determined that a response message from the dispatch is received, the interface is updated, a specific alarm prompt is given on the standby interface, and the self-check is over.

[0025] Reference Figure 5 ,In the position management module, the position verification process performs the following operations: After the process starts, the locomotive driver presses the position verification button, and the locomotive station sends the position verification application information to the dispatching server, and then determines whether the ATS information sent by the dispatching server is received. If not, it determines whether the three-time retransmission mechanism has ended. If it has ended, it prompts that the position verification has failed; if it has not ended, the locomotive station sends the position verification application information to the dispatching server again; if the ATS information sent by the dispatching server is received, the locomotive position status is updated, the locomotive station default group is changed, and the position verification is completed.

[0026] Reference Figure 6 ,In the location management module, the manual group transfer process performs the following operations: After the process starts, the locomotive driver presses the manual group transfer button, the locomotive station enters the list, selects the option to manually transfer the group, and the locomotive station sends the group transfer information to the dispatching server, and then determines whether it has received a response from the dispatching server. If not, it determines whether the three-time retransmission mechanism has ended. If not, the locomotive station sends the group transfer information to the dispatching server again. If it has ended, it prompts that the manual group transfer has failed. If a response is received from the dispatching server, the locomotive position status is updated, the locomotive station default group is changed, and the manual group transfer ends.

[0027] Reference Figure 7 In the log management module, the process of storing log information into logtxt1 performs the following operations: After the process starts, the log management module receives the write log signal, triggers the storage slot function, and then determines whether the logtxt1 file size is greater than 2M. If it is not greater than 2M, the log information is stored in logtxt1. If it is greater than 2M, logtxt2 is cleared, logtxt1 is copied to logtxt2, and then logtxt1 is cleared, the log information is stored in logtxt1, and then the signal is returned to the receiving signal.

[0028] Reference Figure 8 ,In the channel machine control module, the switching unit parsing process performs the following operations: After the process starts, the main control unit sends an AT command to the switching unit. The switching unit receives the AT command trigger, and the switching unit processes the AT command to determine whether the AT command is sent to the TETRA channel machine. If yes, the AT command is sent to the TETRA channel machine. If not, the AT command is sent to the LTE channel machine. After the channel machine responds, the switching unit will receive the channel machine response. At this time, the switching unit will respond to the AT command and send it to the main control unit. The main control unit processes the AT command. The AT command types are divided into handshake commands, call application, call release, voice application, and voice release. The main control unit updates the interface according to the AT command type, and the process ends.

[0029] Reference Fig. 9 , in the interface display management, the interface management process performs the following operations: After the process starts, create an interface framework, initialize the sub-interface, serial port and database, and then display the main interface. When a key message is triggered, different interfaces are displayed according to the key message. If you enter the setting interface, refresh the setting parameters. If you enter the call interface, refresh the basic call information. If you enter the menu interface, display the menu interface. If you enter the call record interface, refresh the record information. If you enter the device information interface, display the device information, and the process ends.

[0030] Reference Fig.10The dual-mode cluster locomotive station is the wide-narrowband dual-mode cluster locomotive station of the present invention. The method uses the dual-mode cluster locomotive station as the operating platform, based on the TETRA channel machine and the LTE channel machine, and pre-installs the dual-mode cluster APP software in the dual-mode cluster locomotive station. It simultaneously accesses the TETRA base station and the LTE base station through the antenna, thereby registering with the TETRA core network and the LTE core network at the same time, and then can access the dispatching server and dispatching station hung on the central side switch, which is used to realize the functions of the wide-narrowband dual-mode cluster locomotive station.

Claims

1. A method for implementing a wide-narrowband dual-mode cluster locomotive station, characterized in that: The implementation method uses a dual-mode cluster locomotive station as an operating platform, is implemented based on a TETRA channel machine and an LTE channel machine, and pre-installs a dual-mode cluster APP software consisting of a database management module, a locomotive station self-check module, a location management module, a log management module, a channel machine control module and an interface display management module in the dual-mode cluster locomotive station; The database management module adopts SQLite database and uses QSqlDatabase and QSqlQuery classes provided in QT. The database management module is a separate thread. In the thread, the database management module completes the database read and write operation process and receives the access of the background program to the database through the slot function; The locomotive station self-check module completes the timing detection process when the dual-mode cluster locomotive station is operating normally, and regularly detects whether the voltage and temperature are beyond the normal range. If they are beyond the normal range, an alarm will be generated and the alarm information will be sent to the dispatch server; The position management module completes the position verification process during the operation of the dual-mode cluster locomotive station. When the locomotive station displays an incorrect position, the driver manually presses the position verification button to verify the position. When the train fails to update the position information in time when it goes from the main line to the non-main line or from the non-main line to the main line, the position management module executes the manual transfer process, and the driver operates the manual transfer to set the train position. The log management module records and manages the locomotive power on / off information, key operation information, and abnormal exit information, executes the process of storing log information in logtxt1, receives the signal of writing log through the slot function, and then stores the log information in the logtxt1 file, which is saved in a fixed location; The channel machine control module uses the main control unit of the locomotive station to control the channel machine, sends the AT command to the switching unit, and the switching unit performs the parsing process. After the parsing process by the switching unit, the AT command is sent to the designated TETRA channel machine or LTE channel machine. After waiting for the channel machine to respond, the switching unit sends the response AT command data back to the main control unit; The interface display management is after the main control unit program of the locomotive station is started. When the user operates a button, different messages are triggered. The interface display management process displays different interface information according to different button messages.

2. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1 is characterized in that: In the database management module, the database read and write operation process performs the following operations: After the thread starts, it reads the basic information table, and then starts to receive signals to trigger the slot function. After the signal is triggered, it determines the signal type. If the signal type is read, it determines the specific table to be read, and then reads the information in the table; if the signal type is write, it determines the specific table to be written, and then writes the information to the table.

3. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the locomotive self-check module, the timing check process performs the following operations: After starting the test, the locomotive self-test module determines whether the detected temperature and voltage exceed the specified range. If not, it further determines whether the locomotive has had a temperature and voltage alarm before. If there is no temperature and voltage alarm, no processing is done and the self-test ends. If it is determined that the locomotive has had a temperature and voltage alarm before, the locomotive sends an alarm cancellation message to the dispatch server, and then determines whether a response message from the dispatch is received. If no response message from the dispatch is received, it further determines whether the three retransmissions are completed. If not, the locomotive sends an alarm cancellation message to the dispatch server. If it is completed, the alarm message fails to be sent. , the self-check is over; if it is determined that a response message from the dispatch is received, the interface is updated, the alarm prompt is cancelled on the standby interface, and the self-check is over; if it is determined that the temperature and voltage are detected to exceed the specified range, the locomotive station sends the alarm information to the dispatch server, and then determines whether a response message from the dispatch is received. If no response message from the dispatch is received, it further determines whether the three retransmissions are over. If not, the locomotive station sends an alarm message to the dispatch server. If it is over, the sending of the alarm message fails, and the self-check is over; if it is determined that a response message from the dispatch is received, the interface is updated, a specific alarm prompt is given on the standby interface, and the self-check is over.

4. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the position management module, the position verification process performs the following operations: After the process starts, the locomotive driver presses the position verification button, and the locomotive station sends the position verification application information to the dispatching server, and then determines whether the ATS information sent by the dispatching server is received. If not, it determines whether the three-time retransmission mechanism has ended. If it has ended, it prompts that the position verification has failed; if it has not ended, the locomotive station sends the position verification application information to the dispatching server again; if the ATS information sent by the dispatching server is received, the locomotive position status is updated, the locomotive station default group is changed, and the position verification is completed.

5. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the location management module, the manual group transfer process performs the following operations: After the process starts, the locomotive driver presses the manual group transfer button, the locomotive station enters the list, selects the option to manually transfer the group, and the locomotive station sends the group transfer information to the dispatching server, and then determines whether it has received a response from the dispatching server. If not, it determines whether the three-time retransmission mechanism has ended. If not, the locomotive station sends the group transfer information to the dispatching server again. If it has ended, it prompts that the manual group transfer has failed. If a response is received from the dispatching server, the locomotive position status is updated, the locomotive station default group is changed, and the manual group transfer ends.

6. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the log management module, the process of storing log information into logtxt1 performs the following operations: After the process starts, the log management module receives the write log signal, triggers the storage slot function, and then determines whether the logtxt1 file size is greater than 2M. If it is not greater than 2M, the log information is stored in logtxt1. If it is greater than 2M, logtxt2 is cleared, logtxt1 is copied to logtxt2, and then logtxt1 is cleared, the log information is stored in logtxt1, and then the signal is returned to the receiving signal.

7. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the channel machine control module, the switching unit parsing process performs the following operations: After the process starts, the main control unit sends an AT command to the switching unit. The switching unit receives the AT command trigger, and the switching unit processes the AT command to determine whether the AT command is sent to the TETRA channel machine. If yes, the AT command is sent to the TETRA channel machine. If not, the AT command is sent to the LTE channel machine. After the channel machine responds, the switching unit will receive the channel machine response. At this time, the switching unit will respond to the AT command and send it to the main control unit. The main control unit processes the AT command. The AT command types are divided into handshake commands, call application, call release, voice application, and voice release. The main control unit updates the interface according to the AT command type, and the process ends.

8. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: In the interface display management, the interface management process performs the following operations: After the process starts, create an interface framework, initialize the sub-interface, serial port and database, and then display the main interface. When a key message is triggered, different interfaces are displayed according to the key message. If you enter the setting interface, refresh the setting parameters. If you enter the call interface, refresh the basic call information. If you enter the menu interface, display the menu interface. If you enter the call record interface, refresh the record information. If you enter the device information interface, display the device information, and the process ends.

9. The method for implementing a wide-narrowband dual-mode cluster locomotive station according to claim 1, characterized in that: The dual-mode cluster locomotive station is composed of a control box and a host, wherein the control box includes a control unit, a display operation unit, a speaker, a handset, and a key unit, and the host includes a power supply unit, a switching unit, a TETRA channel machine, and an LTE channel machine; the control unit is connected to the display operation unit to realize the function of interface display and operation, connected to the key unit to realize the function of key control, connected to the speaker to realize the playback of prompt sounds and call sounds, and connected to the handset to realize the function of audio collection during calls; the switching unit is connected to the power supply unit to power the dual-mode cluster locomotive station; connected to the LTE channel machine to realize the broadband cluster function; connected to the TETRA channel machine to realize the narrowband cluster function; the control box is connected to the host through a control interface to realize the channel machine AT command transmission function, connected through a power interface for the host to power the control box, and connected through an audio interface to realize audio transmission.

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