CN115412153A

CN115412153A - Data sending method and equipment of Beidou third RDSS (radio data service) regional short message communication system

Info

Publication number: CN115412153A
Application number: CN202210976526.8A
Authority: CN
Inventors: 林挺; 胡贤庆; 王伟乐; 郭津玮; 朱其文
Original assignee: Zhejiang Zhongyu Communication Co ltd
Current assignee: Zhejiang Zhongyu Communication Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-29
Anticipated expiration: 2042-08-15
Also published as: CN115412153B

Abstract

The embodiment of the specification discloses a data transmission method and equipment based on a Beidou third RDSS (radio determination satellite System) regional short message communication system, wherein the method comprises the following steps: the power supply of an RDSS signal receiving link in the Beidou user machine is in a closed state; initializing a timer of the Beidou user machine, and regularly converting a transmitting link of the Beidou user machine into a working state according to the preset frequency of the timer and data reporting; the Beidou user machine receives the broadcast information forwarded by the Beidou commanding machine through the connected wireless mobile receiving equipment; if the Beidou user machine receives the broadcast information, determining the numbers of the current response wave beam and the current redundant wave beam according to the response wave beam information and the redundant wave beam information; the Beidou subscriber machine determines the transmission parameters of the Beidou subscriber machine according to the transmission parameter information of the built-in SIM card, the transmission power information of the power amplifier in the transmission link, the current response beam number and the current redundant beam number; and determining whether to transmit or not according to the management information, and if so, transmitting the signal according to the transmission parameters.

Description

Data sending method and equipment of Beidou third RDSS (radio data service) regional short message communication system

Technical Field

The specification relates to the field of communication, in particular to a data sending method and device based on a Beidou third RDSS (radio determination satellite service) regional short message communication system.

Background

In practical application, various satellite communication systems constructed based on the Beidou RDSS system are often located in remote areas such as oceans and forests, areas with difficult traffic and unattended areas, and have no ground mobile communication and network signals and insufficient and convenient electric energy, so that the Beidou user machine is required to have the characteristics of low power consumption, small volume, convenience in carrying and the like, particularly the requirement of low power consumption, and the satellite communication system is an urgent requirement in application of various industries at present.

At present, for a ground application system, a Beidou user machine is used as an information transmission node to construct various satellite communication systems. In order to work with the lowest power consumption, the Beidou user machine is controlled to work only when data needs to be reported, and the user machine is in a dormant state or even in a power-off state in other time periods, so that the power consumption is reduced. However, the service operation mechanism of the current beidou system stipulates that the beidou RDSS subscriber machine on the ground must keep tracking and locking the downlink beam of the satellite. Therefore, if the beidou user machine is to meet the technical requirements of the service operation mechanism of the beidou system, the beidou user machine must always keep tracking and locking the satellite downlink beam, which is contradictory to controlling the beidou user machine to work only when data needs to be reported, and to be in a dormant state in other time periods, so that the beidou user machine consumes most electric energy and does not meet the low power consumption requirements of application systems in various industries.

Disclosure of Invention

One or more embodiments of the present specification provide a data transmission method and device based on a beidou No. three RDSS regional short message communication system, which are used to solve the following technical problems: how to provide an effective low-power-consumption data sending method based on a Beidou third RDSS area short message communication system.

One or more embodiments of the present disclosure adopt the following technical solutions:

one or more embodiments of the present specification provide a data transmission method applied to a beidou No. three RDSS regional short message communication system, which is applied to a beidou user machine of the beidou No. three RDSS regional short message communication system, and the method includes:

the power supply of an RDSS signal receiving link in the Beidou user machine is in a closed state; initializing a timer of the Beidou user machine, and regularly converting a transmitting link in the Beidou user machine into a working state according to the timer and a preset frequency of data reporting;

the Beidou user machine receives broadcast information in the Beidou third RDSS regional short message communication system forwarded by the Beidou commander through wireless mobile receiving equipment connected with the Beidou user machine; wherein the broadcast information comprises any one or more of: response beam information, redundant beam information, management information; the management information is used for adjusting the working state of the Beidou user machine;

if the Beidou user machine determines that the broadcast information is received, determining a current response beam number and a current redundant beam number of the Beidou user machine according to the response beam information and the redundant beam information;

the Beidou subscriber machine determines the transmitting parameters of the Beidou subscriber machine according to transmitting parameter information of a built-in SIM card, transmitting power information of a power amplifier in the transmitting link, the current response wave beam number and the current redundant wave beam number;

and the Beidou user machine determines whether to transmit according to the management information, and if so, the Beidou user machine transmits signals based on the transmission parameters.

Optionally, in one or more embodiments of the present specification, before the power supply of the RDSS signal receiving link in the beidou subscriber is in the off state, the method further includes:

the Beidou user machine is started based on a preset period and initialized;

the Beidou user machine determines the position information and the time information of a built-in RNSS receiver;

the Beidou user machine tracks an appointed satellite under the Beidou third RDSS regional short message communication system and acquires satellite broadcast information broadcasted by the appointed satellite;

the Beidou user machine corrects the time information according to the satellite broadcasting information, so that the time synchronization of the Beidou user machine and the specified satellite is realized, and response beams and redundant beams of the Beidou user machine are obtained based on the intensity of each beam;

and the Beidou subscriber machine determines basic data information of a built-in SIM card, writes the basic data information, the position information, the response wave beam and the redundant wave beam into a report inbound frame of the subscriber machine according to a preset format, and transmits the report inbound frame to the specified satellite.

Optionally, in one or more embodiments of the present specification, after the beidou user machine receives, through a wireless mobile receiving device connected to the beidou user machine, broadcast information in the beidou commander RDSS three-number RDSS regional short message communication system forwarded by the beidou commander, the method further includes:

if the Beidou subscriber machine determines that the broadcast information is not received, acquiring the receiving waiting time of the Beidou subscriber machine based on a built-in counter of the Beidou subscriber machine;

if the receiving waiting time of the Beidou user machine is larger than a preset time threshold, the Beidou user machine converts the power supply of the RDSS signal receiving link into a starting state and retraces the appointed satellite of the Beidou third RDSS regional short message communication system.

Optionally, in one or more embodiments of the present specification, before the beidou subscriber station determines the transmission parameters of the beidou subscriber station according to the transmission parameter information of its built-in SIM card, the transmission power information of the power amplifier in the transmission link, the current response beam number, and the current redundant beam number, the method further includes:

the Beidou user machine acquires management information in the broadcast information; wherein the management information at least comprises any one or more of the following items: the system comprises an outbound broadcast superframe fixed domain of the Beidou user machine, an information domain of the Beidou user machine for time synchronization, an information domain of a Beidou user machine for storing serial numbers, network management outbound frame information and confirmation information of data transmitted by the Beidou user machine;

the Beidou user machine acquires first time data of the specified satellite based on an outbound broadcast superframe fixed domain of the Beidou user machine, and acquires second time data of the preset satellite based on an information domain of the Beidou user machine for time synchronization;

and the Beidou user machine corrects the time information of the Beidou user machine according to the first time data and the second time data so as to realize the time synchronization of the Beidou user machine and the specified satellite.

Optionally, in one or more embodiments of the present specification, a big dipper subscriber machine determines a transmission parameter of the big dipper subscriber machine according to transmission parameter information of a built-in SIM card of the big dipper subscriber machine, transmission power information of a power amplifier in the transmission link, the current response beam number, and the current redundant beam number; the big dipper subscriber computer confirms whether to launch according to the management information, if, then big dipper subscriber computer carries out the transmission of signal based on transmission parameter, specifically includes:

the Beidou user machine determines the transmission data information of the Beidou user machine according to the transmission parameter information of a built-in SIM card and the transmission power information of a preset power amplifier; wherein the transmission data information at least comprises any one or more of the following items: transmitting inbound frequency, transmitting frequency point, communication grade and transmitting power;

the Beidou user machine determines the number of the inbound response wave beam of the Beidou user machine based on the current state of the signal wave beam corresponding to the current response wave beam number and the current redundant wave beam number;

the Beidou user machine adjusts and determines the transmitting parameters of the Beidou user machine according to the transmitting data information and the number of the inbound response wave beams of the Beidou user machine;

the Beidou user machine sets the transmitting state of the Beidou user machine according to the network management outbound frame information in the management information;

the Beidou subscriber machine judges whether the management information contains confirmation information of data transmitted by the Beidou subscriber machine, and if not, the Beidou subscriber machine determines whether to transmit or not based on the transmitting state;

if the Beidou user machine transmits, setting the time and/or frequency of the signal transmitted by the Beidou user machine based on the transmission parameters, and waiting for transmission; the content corresponding to the signal transmitted by the Beidou user machine is determined according to the current requirement of the Beidou third RDSS regional short message communication system.

Optionally, in one or more embodiments of the present specification, after the beidou user machine receives, through a wireless mobile receiving device connected to the beidou user machine, broadcast information in the beidou commander-based RDSS regional short message communication system forwarded by the beidou commander, the method further includes:

if the Beidou user machine receives the information domain used for storing the beam numbers of the Beidou user machine in the management information, acquiring the numbers corresponding to the beams in the information domain used for storing the beam numbers of the Beidou user machine;

the Beidou user machine acquires the historical number of each beam to compare the historical number of each beam with the number corresponding to each beam;

and if the Beidou user machine determines that the number corresponding to each wave beam is different from the historical number of each wave beam, correcting the historical number and storing the historical number in the Beidou user machine.

One or more embodiments of the present specification provide a data transmission method based on a beidou No. three RDSS regional short message communication system, which is applied to a beidou transmitter of the beidou No. three RDSS regional short message communication system, and the method includes:

the Beidou transmitter regularly converts a transmitting link in the Beidou transmitter into a working state according to a preset frequency reported by data; wherein no receiving link exists in the Beidou transmitter;

the Beidou transmitter receives broadcast information in the Beidou third RDSS regional short message communication system forwarded by the Beidou commander through wireless mobile receiving equipment connected with the Beidou transmitter; wherein the broadcast information comprises any one or more of: response beam information, redundant beam information, management information; the management information is used for adjusting the working state of the Beidou transmitter;

if the Beidou director determines to receive the broadcast information, setting a current response wave beam and a current redundant wave beam of the Beidou transmitter according to the response wave beam information and the redundant wave beam information;

the Beidou transmitter determines the transmission parameters of the Beidou transmitter according to the transmission parameter information of a built-in SIM card, the transmission power information of a power amplifier in the transmission link, the current response beam number and the current redundant beam number;

and the Beidou transmitter determines whether the Beidou transmitter transmits or not according to the management information, and if so, the Beidou transmitter transmits signals based on the transmission parameters.

Optionally, in one or more embodiments of the present specification, after the beidou transmitter receives, through a wireless mobile receiving device connected to the beidou transmitter, broadcast information in the beidou third RDSS regional short message communication system forwarded by the beidou director, the method further includes:

if the Beidou transmitter determines that the broadcast information is not received, the Beidou transmitter acquires the receiving waiting time of the Beidou transmitter based on a built-in counter of the Beidou transmitter;

if the Beidou transmitter determines that the receiving waiting time is larger than a preset time threshold, the Beidou transmitter acquires a historical response wave beam of the Beidou transmitter; the historical response wave beam is a previous response wave beam of the current wave beam to be responded;

the Beidou transmitter takes the historical response wave beam as a current inbound response wave beam of the Beidou transmitter;

the Beidou transmitter acquires time information of the Beidou transmitter through an internal RNSS receiver of the Beidou transmitter, so that the transmitting time of the Beidou transmitter is synchronized based on the time information, the Beidou transmitter transmits a startup report inbound frame to a specified satellite in the Beidou No. three RDSS regional short message communication system, and the broadcast information is received again.

Optionally, in one or more embodiments of the present specification, the Beidou transmitter is a Beidou transmitter based on an FPGA/CPLD + ARM architecture, and a transmission link in the Beidou transmitter includes: power amplifier, up converter, transmitting element.

One or more embodiments of the present specification provide a data transmission device of a big dipper No. three RDSS regional short message communication system, be applied to big dipper user equipment of the big dipper No. three RDSS regional short message communication system, the device includes: a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform:

the power supply of an RDSS signal receiving link in the Beidou user machine is in a closed state; initializing a timer of the Beidou user machine, and converting a transmitting link in the Beidou user machine into a working state at regular time according to the timer and a preset frequency of data reporting;

if the Beidou user machine determines to receive the broadcast information, determining a current response beam number and a current redundant beam number of the Beidou user machine according to the response beam information and the redundant beam information;

the Beidou subscriber machine determines the transmitting parameters of the Beidou subscriber machine according to transmitting parameter information of a built-in SIM card, transmitting power information of a power amplifier in the transmitting link, the current response beam number and the current redundant beam number;

and the Beidou user machine determines whether to transmit or not according to the management information, and if so, the Beidou user machine transmits signals based on the transmission parameters.

One or more embodiments of the present specification provide a data transmission device of a big dipper No. three RDSS regional short message communication system, which is applied to a big dipper transmitter of the big dipper No. three RDSS regional short message communication system, and the device includes: a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform:

the Beidou commander receives broadcast information in the Beidou third RDSS regional short message communication system forwarded by the Beidou commander through wireless mobile receiving equipment connected with the Beidou commander; wherein the broadcast information comprises any one or more of: response beam information, redundant beam information, management information; the management information is used for adjusting the working state of the Beidou user transmitter;

if the Beidou director determines that the broadcast information is received, setting a current response wave beam and a current redundant wave beam of the Beidou transmitter according to the response wave beam information and the redundant wave beam information;

The embodiment of the specification adopts at least one technical scheme which can achieve the following beneficial effects:

in the embodiment of the specification, the power supply of the receiving link of the Beidou user machine is turned off, the equipment units in the transmitting link of the Beidou user machine are controlled to enter the dormant working state, the transmitting link of the Beidou user machine is controlled through the timer according to the reporting frequency of the application system, and the transmitting link is only wakened up to be converted into the working state when transmitting data, so that the problem of electric energy consumption caused by the fact that the receiving link needs to be opened in real time by the Beidou user machine in the traditional mode is solved. In addition, the director in the system is adopted to collect various kinds of broadcast information and management information required by the user machine, and the wireless mobile receiving equipment of the Beidou user machine is used for receiving the broadcast information, so that the auxiliary collection of the broadcast information through other ground equipment is realized, and the Beidou user machine can realize the tracking of the satellite and the acquisition of the broadcast information without opening a receiving link in real time. The method can meet the working requirements specified by the service operation mechanism of the Beidou third RDSS region short message communication system, can be flexibly adapted to ground application of various industries, and can carry out service work under ultra-low power consumption and ultra-long standby time. Through the combined design of software and hardware, the power consumption of data transmission of the system is saved, the popularization and application of the Beidou third RDSS area short message communication system are promoted, the equipment and the method are easy to implement, and the hardware cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:

fig. 1 is a schematic flow chart of a method for transmitting data based on a beidou No. three RDSS regional short message communication system according to an embodiment of the present specification;

fig. 2 is a schematic diagram of an internal structure of a beidou subscriber station of an RDSS baseband processing chip in an application scenario provided in an embodiment of the present specification;

fig. 3 is a schematic diagram of a working procedure flow of a beidou user machine in an application scenario provided in an embodiment of the present specification;

fig. 4 is a schematic flow chart of another method for transmitting data based on the short message communication system in the RDSS area of beidou No. three according to the embodiment of the present disclosure;

fig. 5 is a schematic diagram of an internal structure of a Beidou transmitter based on an FPGA/CPLD + ARM architecture in an application scenario provided in the embodiment of the present specification;

fig. 6 is a schematic diagram of a working flow of a beidou transmitter in an application scenario provided in an embodiment of the present specification;

fig. 7 is a schematic diagram of an internal structure of a data sending device based on an RDSS regional short message communication system in beidou No. three provided in the embodiment of the present specification;

fig. 8 is an internal structural schematic diagram of another data transmission device based on the RDSS regional short message communication system of beidou No. three according to the embodiment of the present specification.

Detailed Description

The embodiment of the specification provides a data transmission method and equipment based on a Beidou No. three RDSS regional short message communication system.

The RDSS region short message communication system in the Beidou third satellite navigation system can provide emergency search and rescue, positioning report, message communication and two-way timing service, and the Beidou satellite navigation system can provide satellite navigation and communication integrated service for users through integration of the RDSS system and the RNSS system. Compared with a Beidou second RDSS regional short message communication system, the performance of the Beidou third RDSS regional short message communication service is greatly improved, and the Beidou third RDSS system is safer and more reliable. The scientific and standard management of the service operation mechanism of the Beidou third-class system is benefited, the high-efficiency operation of the whole system under the condition of optimal distribution of channel resources is guaranteed, and the application of the Beidou third-class RDSS regional short message system in various social fields is greatly promoted. In order to meet the technical requirements of a service operation mechanism of a Beidou system, a current user machine must always keep tracking and locking a satellite downlink beam, extract system broadcast information in an outbound message of the downlink beam and various management information in an outbound frame of a network manager, and receive and judge outbound confirmation information of a plain text multicast address in the working process of the user machine.

However, in practical application, it is very common to construct a data acquisition system and other small satellite communication application systems by using a Beidou user machine and a ground monitoring center, and particularly in areas where ground networks cannot cover, the satellite communication application systems can be rapidly constructed, which brings great comprehensive benefits to various industries. The practical use condition of the application system shows that the Beidou user machine is mainly used for collecting and sending data, the user machine in the current market can continuously receive downlink outbound messages of the satellite only by adopting a mode that a receiving unit continuously works in order to realize the function and simultaneously meet the access rule of the Beidou third RDSS (radio data service) regional short message communication system, locked response beams are ensured when the user machine sends the data, and the user machine is ensured to accord with the access rule of the Beidou system, so that the working requirements of the application system on ultra-low power consumption and ultra-long standby time cannot be met.

In order to solve the above technical problem, an embodiment of the present specification provides a data transmission method based on a beidou No. three RDSS regional short message communication system, which includes controlling a receiving link of a beidou subscriber machine, tracking and locking a satellite only after the subscriber machine is powered on, extracting broadcast information and the like in outbound messages of the satellite, synchronizing local time, determining inbound response beams, transmitting a power-on report inbound frame, and then turning off a power supply of the receiving link, so that the receiving link is turned off, and thus power consumption of the receiving link is reduced. Meanwhile, a transmitting link of the Beidou user machine is controlled to enter a dormant working state, and each unit in the transmitting link is awakened only when data is transmitted through timer control according to the reporting frequency of an application system, so that the requirement on low power consumption is met. In addition, the management information of various Beidou RDSS systems forwarded by the application system is received in real time through the ground wireless receiving module, and the fact that broadcasting information is obtained based on the system is guaranteed, so that the access requirement of the Beidou system is met. In another embodiment of the present disclosure, the method is performed by a beidou transmitter, after the transmitter is powered on, other ground wireless receiving modules (such as ultrashort wave radio stations) are used to receive broadcast information of a beidou RDSS system broadcasted by an application system, synchronize local time, determine inbound response beams, and transmit a power-on report inbound frame, then control units of a transmission link of the transmitter to enter a sleep working state, and wake up the units in the transmission link only when data is transmitted through timer control according to a reporting frequency of the application system. Meanwhile, the transmitter receives various kinds of management information of the Beidou RDSS system forwarded by the application system in real time through the ground wireless receiving module. The embodiment of the specification greatly reduces the power consumption of the Beidou equipment for sending data in a mode of combining software and hardware, can reduce the hardware cost, and can meet the requirements of various application systems on ultra-low power consumption and ultra-long standby time.

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present specification without any creative effort shall fall within the protection scope of the present specification.

As shown in fig. 1, the embodiment of the present specification provides a schematic flow chart of a method for transmitting data based on a beidou No. three RDSS regional short message communication system. The method shown in fig. 1 includes the following steps:

s101: the power supply of an RDSS signal receiving link in the Beidou user machine is in a closed state; initializing a timer of the Beidou user machine, and converting a transmitting link in the Beidou user machine into a working state at regular time according to the timer and the preset frequency of data reporting.

As shown in fig. 2, in the current market, the big dipper subscriber units mostly use the same baseband processing chip, and a transmitting link of the big dipper subscriber unit is formed based on the power amplifier, the up-converter and the transmitting unit, and a receiving link of the big dipper subscriber unit is formed based on the low noise amplifier, the down-converter and the receiving unit. In the Beidou third RDSS regional short message communication system, a Beidou user machine is usually used as a communication transmission node in an application system region, collected data are sent according to a certain frequency and a communication protocol, and a position stamp and a time stamp are printed. Therefore, by utilizing the spatial correlation of the service area where the Beidou third RDSS area short message communication system is located, other equipment is adopted to receive and extract various kinds of information broadcasted by the Beidou third RDSS area short message communication system, and a ground wireless mobile communication means is adopted to retransmit the information to the Beidou user machine in the application system area. Therefore, in order to save the power consumption of the system, in the embodiment of the description, the power supply of the receiving link of the beidou subscriber machine is turned off, that is, the power supply of the RDSS receiving link in the beidou subscriber machine is in an off state, and only in a transmitting state, the transmitting link is converted into a working state from a dormant state. Specifically, as shown in fig. 2, in the embodiment of this specification, the power supply of the RDSS signal receiving link in the beidou user machine is in an off state, and then the beidou user machine initializes the timer of the beidou user machine, so that the transmitting link in the beidou user machine is periodically switched to a working state according to the preset frequency reported by the timer and the data.

Furthermore, in order to inform the ground central station that the Beidou user machine is started, the reliability of data sending is improved, the possibility of data loss is reduced, and the monitoring of the emission of the Beidou user machine is realized. In one or more embodiments of the present specification, before the power supply of the RDSS signal receiving link in the beidou subscriber is in the off state, the method further includes the following steps:

first, big dipper subscriber unit opens based on presetting the cycle, and carry out the initialization, for example: reading information in a local SIM card, comprising: local machine address, broadcast address, initial phase of pseudo code for local machine receiving and transmitting, generating polynomial, etc. And then, acquiring the position information and the time information of the Beidou user machine according to an RNSS receiver in the Beidou user machine. The Beidou user machine tracks and locks an appointed CEO satellite of the Beidou third RDSS regional short message communication system, and obtains satellite broadcast information in an outbound message of the appointed satellite. And correcting and initializing the acquired time information according to the acquired satellite broadcast information to realize the time synchronization of the Beidou user machine and the specified satellite, and acquiring inbound response beams and redundant beams of the user machine based on the intensity of each beam. Namely, the beam with the strongest signal strength is selected as a response beam in each beam of the designated satellite, and a preset number of other beams are selected as redundant beams. And then acquiring basic data information of a built-in SIM card in the Beidou subscriber machine, generating a report inbound frame of the subscriber machine according to the basic data information, the position information, the inbound response wave beam and the redundant wave beam according to preset format information, and transmitting the report inbound frame to a specified satellite. Therefore, the data sending reliability is improved by monitoring the data sending process of the Beidou user machine, so that whether the Beidou user machine needs to be retransmitted or not is judged in the following process, and the problem that the data are not uploaded due to the fault problem of the Beidou user machine is avoided.

S102: the Beidou user machine receives broadcast information in the Beidou third RDSS regional short message communication system forwarded by the Beidou commander through wireless mobile receiving equipment connected with the Beidou user machine; wherein the broadcast information comprises any one or more of: response beam information, redundant beam information, management information; the management information is used for adjusting the working state of the Beidou user machine.

From the step S101, it can be known that the broadcast information of the beidou RDSS system is slowly changed and repeatedly broadcasted information, and the application system has sufficient time to receive and forward to the user machine in the system by using other devices. Therefore, in order to save power consumption, in the embodiments of the present specification, after the receiving link is closed, the broadcast information is directly received without passing through the receiving link, and a wireless mobile receiving device connected to a beidou user machine in a preset satellite communication application system is used to receive the broadcast information forwarded by the beidou director, for example: and receiving the broadcast information forwarded by the Beidou commanding machine through an ultrashort wave receiving radio station connected with the Beidou user machine. It should be noted that the broadcast information includes: the response beam information, the redundant beam information and the management information are used for adjusting the working state of the Beidou user machine.

Further, in one or more embodiments of the present specification, after the beidou user machine receives, through the wireless mobile receiving device connected to the beidou user machine, the broadcast information in the beidou command machine forwarded in the RDSS three-number RDSS regional short message communication system, the method further includes the following processes:

and if the Beidou subscriber machine determines that the broadcast information is not received, acquiring the receiving waiting time t of the Beidou subscriber machine according to the built-in counter of the Beidou subscriber machine. And if the receiving waiting time T of the Beidou user machine is greater than the preset time threshold value T, the Beidou user machine restarts a power supply of the preset RDSS signal receiving link and retraces the appointed satellite under the Beidou third RDSS regional short message communication system. Based on the above process, the embodiment of the specification solves the problem that the Beidou user machine does not receive various management information forwarded by the system for a long time, and improves the reliability of data transmission.

S103: and if the Beidou user machine determines to receive the broadcast information, determining the current response beam number and the current redundant beam number of the Beidou user machine according to the response beam information and the redundant beam information.

And if the broadcast information is determined to be received, setting the current response wave beam number and the current redundant wave beam number of the Beidou user machine according to the response wave beam information and the redundant wave beam information. Among them, it should be noted that: the response wave beam is a downlink outbound wave beam of 1 GEO satellite locked by a user in the Beidou third RDSS area short message communication system; the redundant wave beams are other downlink outbound wave beams of the GEO satellite which are locked by the user and are also locked after the user locks and synchronously responds to the wave beams in the short message communication system of the Beidou RDSS area, and the wave beams are collectively called as the redundant wave beams of the user. The effective response to the broadcast information is realized by locking the wave beam, so that the problem that the data transmission violates the access regulation is solved, and the problem that the Beidou user machine is synchronous with the time of the satellite when transmitting signals is solved.

S104: and the Beidou subscriber machine determines the transmission parameters of the Beidou subscriber machine according to the transmission parameter information of a built-in SIM card, the transmission power information of a power amplifier in the transmission link, the current response beam number and the current redundant beam number.

In the embodiment of the specification, the Beidou subscriber machine determines the transmission parameters of the Beidou subscriber machine according to the transmission parameter information of the built-in SIM card, the information of the power amplifier in the transmission link, the current response beam number and the current redundant beam number.

In order to achieve synchronization between the time of the beidou subscriber machine and the satellite time during data transmission, in one or more embodiments of the present specification, before determining the transmission parameters of the beidou subscriber machine according to the transmission parameter information of the built-in SIM card, the transmission power information of the power amplifier in the transmission link, the current response beam number, and the current redundant beam number, the method further includes the following steps: firstly, the Beidou user machine acquires management information; it should be noted that the management information at least includes any one or more of the following items: the system comprises an outbound broadcast superframe fixed domain of a Beidou user machine, an information domain of the Beidou user machine for time synchronization, an information domain of a Beidou user machine for storing serial numbers, network management outbound frame information and confirmation information of data transmitted by the Beidou user machine. The Beidou user machine acquires first time data of the appointed satellite according to the outbound broadcast superframe fixed domain of the Beidou user machine in the management information, and acquires second time data of the preset satellite based on the information domain, used for time synchronization, of the Beidou user machine in the management information. And then the Beidou user machine corrects the time information of the Beidou user machine according to the first time data and the second time data so as to realize the time synchronization of the Beidou user machine and the specified satellite. The information domain of the Beidou user machine for time synchronization under a certain application scene is as follows: the MsgType0 type information field information broadcasts satellite ephemeris, leap second information and the like in the MsgType0 type information field information, so that the Beidou user machine can correct the time information of the Beidou user machine according to the week count, zhou Namiao and leap second, and time synchronization is achieved. Specifically, the intra-week second and week count of the preset satellite is acquired based on the outbound broadcast superframe fixed domain information, and the leap second accumulated count of the preset satellite is acquired based on the information domain of the Beidou user machine for time synchronization, so that the time synchronization of the Beidou user machine and the satellite is realized.

S105: and the Beidou user machine determines whether to transmit according to the management information, and if so, the Beidou user machine transmits signals based on the transmission parameters.

And after the transmission parameters are obtained based on the steps, the Beidou user machine determines whether to transmit or not according to the management information, and if so, the Beidou user machine transmits signals according to the transmission parameters. Specifically, in one or more embodiments of the present specification, the big dipper subscriber station determines a transmission parameter of the big dipper subscriber station according to transmission data information of a built-in SIM card, transmission power information of a power amplifier in a transmission link, a current response beam number, and a current redundant beam number; the Beidou user machine determines whether to transmit according to the management information, and if so, the Beidou user machine transmits signals based on the transmission parameters, and the method specifically comprises the following processes:

the Beidou subscriber machine determines the transmitting data of the Beidou subscriber machine according to the transmitting parameter information of the built-in SIM card and the transmitting power information of the built-in power amplifier; wherein the transmission data comprises at least any one or more of: transmitting inbound frequency, transmitting frequency point, communication grade and transmitting power. And the Beidou user machine determines the number of the inbound response wave beam of the Beidou user machine based on the current state of the signal wave beam corresponding to the current response wave beam number and the current redundant wave beam number. And the Beidou subscriber machine adjusts and determines the transmitting parameters of the Beidou subscriber machine according to the transmitting data and the number of the inbound response wave beams of the Beidou subscriber machine. Here, the process of determining the transmission parameter is a process of determining the transmission parameter in the existing beidou system, and therefore, the process is not described in detail.

And then the Beidou user machine sets the transmitting state of the Beidou user machine according to the network management outbound frame information in the management information. And the Beidou user machine judges whether the management information contains confirmation information of data transmitted by the Beidou user machine. If not, the Beidou subscriber machine determines whether the Beidou subscriber machine transmits or not according to the transmitting state. And if the data is transmitted, setting the time and/or frequency for transmitting signals by the subordinate Beidou user machine according to the transmission parameters, and waiting for transmission. The content corresponding to the signal transmitted by the Beidou user machine is determined according to the current requirement of the Beidou third RDSS regional short message communication system. Wherein, according to the network management frame information of leaving a station in the management information, set up the transmitting state of big dipper subscriber station, include specifically: if the network management outbound frame information is received, acquiring parameter information including inbound power control, parameter updating, pause/start service, operation notification and the like included in the website outbound frame information, so as to determine the transmitting state of the Beidou user machine according to the parameter information, for example: and if a permanent closing instruction is received, the Beidou user machine is self-destroyed and is not used and is not transmitted subsequently. The Beidou user machine can set the working state of the Beidou user machine according to the requirements of a Beidou third RDSS regional short message communication system on one hand by receiving the information; another aspect is to obtain acknowledgement information for interaction with the satellite system, thereby improving the efficiency and reliability of communications.

In one or more embodiments of the present specification, after the beidou user machine receives the broadcast information forwarded by the beidou director in the beidou No. three RDSS regional short message communication system through the connected wireless mobile receiving device, the method further includes the following processes:

and if the Beidou user machine receives the information field of the Beidou user machine for storing the beam numbers in the management information, acquiring the numbers corresponding to the beams in the information field of the Beidou user machine for storing the beam numbers. And the Beidou user machine acquires the stored historical numbers of the beams and then compares the historical numbers of the beams with the numbers corresponding to the beams in the current information. And if the Beidou subscriber machine determines that the number corresponding to each wave beam is different from the historical number of each wave beam stored in the Beidou subscriber machine, the historical number of the Beidou subscriber machine is corrected and stored in the Beidou subscriber machine.

As shown in fig. 3, an embodiment of the present specification provides a schematic diagram of a working step flow of a beidou user machine in an application scenario. As can be seen from fig. 3, in a certain application scenario, the working steps of the beidou user machine in the embodiment of the present specification include the following processes:

s3.1: big dipper subscriber computer initialization, the information in this local SIM card is read to big dipper subscriber computer, includes: local machine address, broadcast address, initial phase of pseudo code for local machine receiving and transmitting, generating polynomial, etc.

S3.2: the Beidou user machine acquires the positioning information and the time information of the RNSS receiver in the equipment, and initializes the initial approximate position and the Beidou time of the user machine.

S3.3: the Beidou user machine tracks and locks the Beidou GEO satellite, extracts broadcast information and the like in the satellite outbound messages, synchronizes the local time, determines inbound response beams and redundant beams, and starts a 32PPS counter.

S3.4: the Beidou subscriber machine transmits a startup report inbound frame to the GEO satellite.

S3.5: the Beidou user machine closes a power supply source of the RDSS signal receiving link of the Beidou user machine, and simultaneously opens and initializes the timer.

S3.6: the Beidou user machine controls a power amplifier, an up-converter and a transmitting unit of the Beidou user machine to enter a dormant working state, and awakens each unit in a transmitting link only when data is transmitted through timer control according to a reporting frequency preset by an application system.

S3.7: according to the configuration specification of the application system, the Beidou user machine receives broadcast information of the Beidou system, management information in network management outbound frames and confirmation information in plain text special broadcast address outbound messages forwarded by the application system in real time through ground wireless mobile receiving equipment (such as an ultra-short wave receiving radio station).

S3.8: and the Beidou user machine sets the response wave beam and the redundant wave beam of the user machine according to the received current response wave beam and the received redundant wave beam information, and resets the 32PPS counter.

S3.9: and if the Beidou user machine receives the fixed domain information and the MsgType0 type information domain information of the outbound broadcast superframe, storing the information.

S3.10: according to the received fixed domain information and MsgType0 type information domain information of the outbound broadcast superframe, the Beidou user machine sets the week count and the week second and leap second of the Beidou user machine and corrects the week count and the week second and carries out time synchronization.

S3.11: and the Beidou subscriber machine sets the frequency of the transmission inbound, the transmission frequency point, the communication level, the transmission power and the like according to the information of the step S3.9, the operation of the step S3.10 and the information of the SIM card and the power amplifier of the Beidou subscriber machine, and skips to the step S3.16.

S3.12: and if the Beidou user machine receives the MsgType1 type information field information of the outbound broadcast superframe, comparing the MsgType1 type information field information with the new system pseudo code numbers of all beams stored by the Beidou user machine, and if the MsgType1 type information field information changes, updating the local new system pseudo code numbers.

S3.13: if the Beidou user machine receives the confirmation information broadcast by the plaintext special broadcasting address, if the confirmation information of the user machine exists, the information is stored; if the confirmation information does not exist, judging whether retransmission is needed or not according to the self transmission information and the timer comparison information, and if the retransmission is needed, skipping to the step S3.16.

S3.14: if the Beidou user machine receives the network management outbound frame information, the method comprises the following steps: all or one of the inbound power control information, parameter update information, suspend/enable service information, operation notification information, then the local transmit operating state is set and a jump is made to step S3.16.

S3.15: if the Beidou user machine receives the permanent closing instruction information of the network management outbound frame, the Beidou user machine is set to enter self-destruction operation, and the Beidou user machine fails.

S3.16: the Beidou user machine completes the emission setting, works in a ready state and enters an emission waiting state.

S3.17: if the Beidou user machine does not receive various kinds of management information forwarded by the application system for a long time, the long time is a time threshold (T) set by the application system for the Beidou user machine, and when the time (T) of a timer in the Beidou user machine is greater than the time threshold, namely T is greater than T, the Beidou user machine powers on each unit of a local receiving link, and the step S3.3 is returned.

As shown in fig. 4, an embodiment of the present specification provides another schematic flow chart of a method for sending data based on a beidou No. three RDSS regional short message communication system, and as can be seen from fig. 4, the method is applied to a beidou transmitter of the beidou No. three RDSS regional short message communication system, and the method includes:

s401: the Beidou transmitter regularly converts a transmitting link in the Beidou transmitter into a working state according to a preset frequency reported by data; and a receiving link does not exist in the Beidou transmitter.

In the embodiment of the present specification, the beidou transmitter is a beidou transmitter based on FPGA/CPLD + ARM architecture, and a transmission link in the beidou transmitter includes: power amplifier, up converter, transmitting element. In the embodiment of the specification, the Beidou transmitter converts a transmitting link in the Beidou transmitter into a working state at regular time according to the preset frequency reported by data. The Beidou transmitter and the Beidou user machine are different in that a receiving link does not exist in the Beidou transmitter, so that the problem of electric energy consumption caused by real-time opening of the receiving link is solved.

S402: the Beidou transmitter receives broadcast information in the Beidou third RDSS regional short message communication system forwarded by the Beidou commander through wireless mobile receiving equipment connected with the Beidou transmitter; wherein the broadcast information comprises any one or more of: response beam information, redundant beam information, management information; the management information is used for adjusting the working state of the Beidou user machine.

In one or more embodiments of the present specification, after the beidou transmitter receives, through a wireless mobile receiving device connected to the beidou transmitter, broadcast information in the beidou third RDSS regional short message communication system forwarded by the beidou director, the method further includes:

and if the Beidou transmitter determines that the broadcast information is not received, the Beidou transmitter acquires the receiving waiting time of the Beidou transmitter based on a built-in counter of the Beidou transmitter. If the Beidou transmitter determines that the receiving waiting time is larger than a preset time threshold value, the Beidou transmitter acquires a historical response wave beam of the Beidou transmitter; and the historical response beam is a previous response beam of the current beam to be responded. The Beidou transmitter takes the historical response wave beam as a current inbound response wave beam of the Beidou transmitter, acquires time information of the Beidou transmitter through the built-in RNSS receiver, and synchronizes the transmitting time of the Beidou transmitter based on the time information, so that the Beidou transmitter transmits a start-up report inbound frame to a specified satellite in a Beidou third RDSS regional short message communication system and receives broadcast information again.

S403: and if the Beidou director determines to receive the broadcast information, setting a current response wave beam and a current redundant wave beam of the Beidou transmitter according to the response wave beam information and the redundant wave beam information.

S404: and the Beidou transmitter determines the transmission parameters of the Beidou transmitter according to the transmission parameter information of a built-in SIM card, the transmission power information of a power amplifier in the transmission link, the current response beam number and the current redundant beam number.

S405: and the Beidou transmitter determines whether the Beidou transmitter transmits or not according to the management information, and if so, the Beidou transmitter transmits signals based on the transmission parameters.

In the embodiment of the description, a circuit with an architecture of FPGA/CPLD + ARM shown in fig. 5 is used to replace a core baseband processing chip (or module) of a beidou No. three RDSS subscriber station in the current market, only a transmitting link is designed, and the transmitting link includes an antenna, a power amplifier, an up-converter, an FPGA/CPLD, and an ARM, and a device without a receiving link is a beidou No. three RDSS transmitter. After the Beidou transmitter is started, other ground wireless receiving modules (such as ultra-short wave radio stations) are used for receiving broadcast information and the like of the Beidou third RDSS short message communication system, the local time is synchronized, inbound response beams are determined, a starting report inbound frame is transmitted, then all units of a transmitting link of the Beidou transmitter are controlled to enter a dormant working state, and all units in the transmitting link of the Beidou transmitter are awakened only when data are transmitted through timer control according to the reporting frequency of an application system. Meanwhile, the Beidou transmitter receives various kinds of management information of the Beidou RDSS system forwarded by the application system in real time through the ground wireless receiving module. If the Beidou transmitter waits for a certain time after being started and does not receive satellite broadcast information broadcast by the ground wireless receiving module, inbound response wave beams are set by using historical data, the time of the Beidou transmitter is synchronized by using the RNSS receiving module, and a start report inbound frame is transmitted. After the Beidou transmitter enters a dormant working state, according to the reporting frequency of an application system, the Beidou transmitter is controlled by a timer, only units in a transmitting link are waken up when data are transmitted, and similarly, if various management information forwarded by the application system is not received for a long time, the Beidou transmitter can only use historical data to set inbound response beams when the data are transmitted, and an RNSS receiving module is used for synchronizing the time of the Beidou transmitter. And once the Beidou transmitter receives various management information forwarded by the application system, the working state setting of the Beidou transmitter is immediately updated. The embodiment of the specification can greatly reduce the power consumption of the Beidou equipment for tracking and locking the satellite downlink wave beam by combining the hardware design of the Beidou transmitter with a corresponding software control method, can reduce the hardware cost, and meets the requirements of various application systems on ultra-low power consumption and ultra-long standby time.

Compared with the method for transmitting data by the Beidou transmitter and the Beidou user machine, the data transmission by the Beidou transmitter and the data transmission by the Beidou user machine are only different, the Beidou transmitter needs to ensure that historical data cannot be overdue or invalid, the area range of the constructed application system is relatively small, and the Beidou transmitter is applied to a small-area and fixed (or infrequently moved) data acquisition system and can greatly reduce the cost. Therefore, the same process of data transmission between the beidou transmitter and the beidou user machine is not described in detail here.

As shown in fig. 6, an embodiment of the present specification provides a schematic diagram of a workflow of a beidou transmitter in an application scenario. As shown in fig. 6, the working process of the beidou transmitter in a certain application scenario includes the following steps:

s6.1: big dipper transmitter initialization reads the information in the local SIM card, includes: local address, broadcast address, initial phase of pseudo code for local transmission, generator polynomial, etc.

S6.2: the Beidou transmitter acquires positioning information and time information of an RNSS receiver in the equipment, initializes the initial approximate position and Beidou time of the Beidou transmitter, and starts a 32PPS counter.

S6.3: the Beidou transmitter transmits a boot report inbound frame to the GEO satellite.

S6.4: the Beidou transmitter controls a power amplifier, an up-converter and a transmitting unit of the Beidou transmitter to enter a dormant working state, simultaneously starts and initializes a timer, and awakens each unit in a transmitting link only when transmitting data through timer control according to a reporting frequency preset by an application system.

S6.5: according to the configuration specification of the application system, the Beidou transmitter receives broadcast information of the Beidou system, management information in network management outbound frames and confirmation information in plaintext special broadcast address outbound messages forwarded by the application system in real time through ground wireless mobile receiving equipment (such as an ultrashort wave receiving radio station).

S6.6: and the Beidou transmitter sets the response wave beam and the redundant wave beam of the local machine according to the received current response wave beam and the redundant wave beam information, and resets the 32PPS counter, namely, recording time again and waiting for subsequent transmission.

S6.7: and if the Beidou transmitter receives the fixed domain information and the MsgType0 type information domain information of the outbound broadcast superframe, the information is stored.

S6.8: according to the received fixed domain information and MsgType0 type information domain information of the outbound broadcast superframe, the Beidou transmitter sets the week count and the week second and leap second of the Beidou transmitter to correct and synchronize time.

S6.9: according to the information of the step S6.7, the operation of the step S6.8 and the information of the local SIM card and the power amplifier, the Beidou transmitter sets the frequency of the transmitting inbound, the transmitting frequency point, the communication level, the transmitting power and the like, and skips to the step S6.14.

S6.10: and if the MsgType1 type information domain information of the outbound broadcast superframe is received, the Beidou transmitter is compared with the new system pseudo code numbers of all beams stored in the Beidou transmitter, and if the MsgType1 type information domain information of all beams changes, the local new system pseudo code numbers are updated.

S6.11: if the Beidou transmitter receives the confirmation information broadcasted by the plaintext special broadcasting address, if the confirmation information of the machine exists, the information is stored; if the confirmation information does not exist, judging whether retransmission is needed or not according to the self transmission information and the timer comparison information, and if the retransmission is needed, jumping to the step S6.14.

S6.12: if the Beidou transmitter receives the network management outbound frame information, the method comprises the following steps: all or one of the inbound power control information, parameter update information, suspend/enable service information, operation notification information, then the local transmit operating state is set and a jump is made to step S6.14.

S6.13: if the Beidou transmitter receives the permanent closing instruction information of the network management outbound frame, the Beidou transmitter sets the local machine to enter self-destruction operation, and the transmitter fails.

S6.14: the big dipper transmitter is launched and set up and is accomplished, and the work is ready, gets into transmission wait state.

S6.15: if the big dipper transmitter does not receive various kinds of management information forwarded by the application system for a long time, where the long time is a time threshold (T) set by the application system for the transmitter, and when the timer time (T) inside the transmitter is greater than the time threshold, that is, T is greater than T, the historical (last) response beam is adopted as the inbound response beam currently set for transmission, and the big dipper time synchronization transmission time obtained in step S6.2 is utilized, and the step S6.3 is returned.

As shown in fig. 7, an internal structure diagram of a Beidou subscriber station data transmission device based on a Beidou third RDSS regional short message communication system provided in the embodiments of the present specification is shown.

As can be seen from fig. 7, the beidou subscriber unit applied to the beidou No. three RDSS regional short message communication system includes: a memory 701 for storing computer program instructions and a processor 702 for executing the program instructions, wherein the computer program instructions, when executed by the processor 702, trigger the apparatus to perform:

the Beidou user machine determines the transmission parameters of the Beidou user machine according to the transmission parameter information of a built-in SIM card, the transmission power information of a power amplifier in the transmission link, the current response beam number and the current redundant beam number;

As shown in fig. 8, an internal structure schematic diagram of another beidou transmitter data transmission device based on a beidou No. three RDSS regional short message communication system provided in the embodiment of the present specification is shown.

As can be seen from fig. 8, the beidou transmitter applied to the beidou No. three RDSS regional short message communication system includes: a memory 801 for storing computer program instructions and a processor 802 for executing the program instructions, wherein the computer program instructions, when executed by the processor 802, trigger the apparatus to perform:

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the embodiments of the apparatus, the device, and the nonvolatile computer storage medium, since they are substantially similar to the embodiments of the method, the description is simple, and for the relevant points, reference may be made to the partial description of the embodiments of the method.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

The above description is merely one or more embodiments of the present disclosure and is not intended to limit the present disclosure. Various modifications and alterations to one or more embodiments of the present description will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of one or more embodiments of the present specification should be included in the scope of the claims of the present specification.

Claims

1. A data sending method based on a Beidou third RDSS regional short message communication system is applied to a Beidou user machine of the Beidou third RDSS regional short message communication system, and is characterized by comprising the following steps:

the Beidou subscriber machine determines the transmitting parameters of the Beidou subscriber machine according to transmitting parameter information of a built-in SIM card of the Beidou subscriber machine, transmitting power information of a power amplifier in the transmitting link, the current response wave beam number and the current redundant wave beam number;

2. The data transmission method based on the beidou No. three RDSS regional short message communication system of claim 1, wherein before a power supply of an RDSS signal receiving link in the beidou user machine is in an off state, the method further comprises:

the Beidou user machine is started based on a preset period and initialized;

3. The data transmission method based on the beidou No. three RDSS regional short message communication system according to claim 2, wherein after the beidou user machine receives the broadcast information in the beidou No. three RDSS regional short message communication system forwarded by the beidou director through the wireless mobile receiving device connected with the beidou user machine, the method further comprises:

4. The data transmission method based on the beidou No. three RDSS regional short message communication system of claim 2, wherein before the beidou subscriber machine determines the transmission parameters of the beidou subscriber machine according to the transmission parameter information of its built-in SIM card, the transmission power information of the power amplifier in the transmission link, the current response beam number and the current redundant beam number, the method further comprises:

5. The data transmission method based on the Beidou third RDSS (radio frequency identification system) regional short message communication system according to claim 4, characterized in that the Beidou subscriber machine determines the transmission parameters of the Beidou subscriber machine according to the transmission parameter information of a built-in SIM (subscriber identity module) card, the transmission power information of a power amplifier in the transmission link, the current response beam number and the current redundant beam number; the big dipper subscriber computer confirms whether to launch according to the management information, if, then big dipper subscriber computer carries out the transmission of signal based on transmission parameter, specifically includes:

the Beidou subscriber machine determines the transmitting data information of the Beidou subscriber machine according to the transmitting parameter information of a built-in SIM card and the transmitting power information of a preset power amplifier; wherein the transmission data information at least comprises any one or more of the following items: transmitting inbound frequency, transmitting frequency point, communication grade and transmitting power;

if the Beidou user machine transmits, setting the time and/or frequency of the Beidou user machine for sending signals based on the transmission parameters, and waiting for transmission; and determining the content corresponding to the signal transmitted by the Beidou user machine according to the current requirements of the Beidou third RDSS regional short message communication system.

6. The data transmission method based on the beidou No. three RDSS regional short message communication system according to claim 1, wherein after the beidou user machine receives the broadcast information in the beidou No. three RDSS regional short message communication system forwarded by the beidou director through the wireless mobile receiving device connected with the beidou user machine, the method further comprises:

7. The data transmission method based on the Beidou third RDSS regional short message communication system, as claimed in claim 1, is applied to a Beidou transmitter of the Beidou third RDSS regional short message communication system, and comprises:

8. The data transmission method according to claim 7, wherein after the beidou transmitter receives the broadcast information in the beidou RDSS local short message communication system forwarded by the beidou director through a wireless mobile receiving device connected to the beidou transmitter, the method further comprises:

9. The data transmission method based on the Beidou third RDSS regional short message communication system according to claim 7, wherein the Beidou transmitter is a Beidou transmitter based on FPGA/CPLD + ARM architecture, and a transmission link in the Beidou transmitter comprises: power amplifier, up converter, transmitting element.

10. A data sending device based on a Beidou third RDSS regional short message communication system is applied to a Beidou user machine of the Beidou third RDSS regional short message communication system, and is characterized in that the device comprises: a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform the method of any of claims 1-6.