CN110121161B - Data transmission method, device and system and server - Google Patents
Data transmission method, device and system and server Download PDFInfo
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- CN110121161B CN110121161B CN201910299636.3A CN201910299636A CN110121161B CN 110121161 B CN110121161 B CN 110121161B CN 201910299636 A CN201910299636 A CN 201910299636A CN 110121161 B CN110121161 B CN 110121161B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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Abstract
The embodiment of the application discloses a data transmission method, a device, a system and a server, wherein the data transmission method is applied to unmanned equipment and comprises the following steps: sending a QoS resource updating request to each operator server, and receiving QoS resource information of an operator network corresponding to the operator server; and if the unmanned equipment runs to a positioning point corresponding to the target area, selecting the operator network as a carrier network according to the data volume of service data and the QoS resource information, and transmitting the service data through the carrier network. The technical scheme of the embodiment of the invention improves the data transmission rate, reduces the delay of data transmission between the unmanned equipment and the control background, and meets the requirement of unmanned data transmission.
Description
Technical Field
The application relates to the technical field of unmanned driving, in particular to a data transmission method, device, system and server.
Background
Unmanned equipment such as an unmanned vehicle is generally provided with various sensors, the sensors are used for sensing the surrounding environment of the vehicle, the sensed road, vehicle position and obstacle information are transmitted to a control background of the vehicle through an SIM (Subscriber identity Module) card of a communication terminal in the unmanned vehicle, the steering and speed of the vehicle are adjusted according to an instruction of the control background to realize remote control, and the vehicle is ensured to run on the road safely and reliably.
Data transmission between the unmanned vehicle and the control background needs to occupy a large amount of network resources, and in the prior art, data transmission delay is often reduced by performing flow control on a terminal side, but the technical scheme is not suitable for an unmanned remote control service scene, so that the requirements of high reliability, low delay and the like of the unmanned remote control service scene are not met, and improvement is needed urgently.
Disclosure of Invention
In view of this, embodiments of the present application provide a data transmission method, apparatus, system, and server, where a data transmission rate is increased and a delay of data transmission of an unmanned device is reduced by acquiring network resource information of an operator and selecting a suitable network as a carrier network to transmit service data based on the network resource information and a service data amount.
According to a first aspect of embodiments of the present application, there is provided a data transmission method applied to an unmanned aerial vehicle, including:
sending a QoS resource updating request to each operator server, wherein the QoS resource updating request comprises the traveling path information of the unmanned equipment at the current positioning point;
receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, and the target area is a next area to which the unmanned device is to go, which is determined based on the travel path information and the current anchor point;
and if the unmanned equipment runs to a positioning point corresponding to the target area, selecting the operator network as a carrier network according to the data volume of service data and the QoS resource information, and transmitting the service data through the carrier network.
According to a second aspect of the embodiments of the present application, there is provided a data transmission apparatus for use in an unmanned aerial device, including:
the system comprises a sending module, a quality of service (QoS) resource updating module and a positioning module, wherein the sending module is used for sending a QoS resource updating request to each operator server, and the QoS resource updating request comprises the information of a driving path of the unmanned equipment at a current positioning point;
a receiving module for receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area being a next area to which the unmanned equipment will go, determined based on the travel path information and the current anchor point,
and the transmission module is used for selecting the operator network as a carrier network according to the data volume of the service data and the QoS resource information and transmitting the service data through the carrier network if the unmanned equipment runs to a positioning point corresponding to the target area.
According to a third aspect of embodiments of the present application, there is provided a proxy server, including: a first communication module and a second communication module;
the first communication module is used for acquiring a QoS resource updating request sent by the unmanned equipment and forwarding the QoS resource updating request to each operator server, wherein the QoS resource updating request comprises the traveling path information of the unmanned equipment at the current positioning point;
the second communication module is used for receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area is the next area to be visited by the unmanned equipment and is determined based on the traveling path information of the unmanned equipment and the current positioning point,
the first communication module is further configured to send the QoS resource information to the unmanned aerial vehicle, so that if the unmanned aerial vehicle travels to a location point corresponding to the target area, the carrier network is selected as the operator network according to the data volume of the service data and the QoS resource information, and the service data is transmitted through the carrier network.
According to a fourth aspect of embodiments of the present application, there is provided an operator server, including: the device comprises an acquisition module, a determination module and a feedback module;
the acquiring module is used for acquiring a QoS resource updating request from the unmanned equipment, wherein the QoS resource updating request comprises the traveling path information of the unmanned equipment at the current positioning point;
the determining module is configured to determine QoS resource information of a target area of an operator network, where the target area is a next area to which the unmanned equipment will go, which is determined based on the travel path information of the unmanned equipment and the current location point;
the feedback module is used for sending the QoS resource information to the unmanned equipment, so that if the unmanned equipment runs to a positioning point corresponding to the target area, the operator network is selected as a carrier network according to the data volume of service data and the QoS resource information, and the service data is transmitted through the carrier network.
According to a fifth aspect of embodiments of the present application, there is provided a data transmission system, including: an unmanned aerial device, a proxy server as described in the third aspect of the embodiments of the present application, or a plurality of operator servers as described in the fourth aspect of the embodiments of the present application, the unmanned aerial device comprising a data transmission apparatus as described in the second aspect of the embodiments of the present application.
According to a sixth aspect of embodiments of the present application, there is provided an unmanned aerial vehicle comprising: a processor and a memory; the memory is for storing a computer program executable on the processor;
the processor is configured to perform the steps of the method according to the first aspect of the embodiments of the present application when executing the computer program in the memory.
According to a seventh aspect of embodiments herein, there is provided a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as described in the first aspect of embodiments herein.
Has the advantages that: by applying the scheme of the embodiment of the application, the QoS (Quality of Service) resource updating request (including the traveling path information of the current positioning point) is sent to each operator server, the QoS resource information of the operator network is received, and the QoS resource information of each operator recorded locally is updated. On the other hand, the operator server predicts the driving path of the unmanned equipment in advance, schedules the network resource of the target cell according to the driving path and reserves the corresponding bandwidth resource for the data communication of the unmanned equipment, reduces the communication influence on other users in the corresponding cell (namely the cell corresponding to the area where the unmanned equipment passes), and is convenient for large-scale popularization and application.
Drawings
FIG. 1 is a flow chart of a data transmission method according to one embodiment of the present application;
fig. 2 is a schematic flow chart of a data transmission method according to another embodiment of the present application;
FIG. 3 is a block diagram of a data transmission device according to an embodiment of the present application;
FIG. 4 is a block diagram of a proxy server of one embodiment of the present application;
FIG. 5 is a block diagram of an operator server of one embodiment of the present application;
FIG. 6 is a block diagram of a data transmission system according to one embodiment of the present application;
FIG. 7 is a schematic diagram of the structure of an unmanned aerial vehicle according to an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a non-transitory computer-readable storage medium according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present application more comprehensible, embodiments of the present application are described in detail below with reference to the accompanying drawings and the detailed description. It should be apparent that the embodiments described are some, but not all embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the embodiments in the present application.
The existing single-side carrier aggregation scheme cannot meet the requirements of the remote control service of the unmanned equipment on QoS indexes such as bandwidth, time delay, packet loss rate and the like. In view of the above, an embodiment of the present application provides a data transmission scheme, in a driving process of an unmanned device, the data transmission scheme of this embodiment periodically sends a driving path of a current location point to each operator server to obtain QoS resource conditions that can be provided by each operator network at a next location point, selects a carrier network based on QoS resource information and service data volume that can be provided by each operator network, and transmits service data to a control background through the carrier network to implement unmanned remote control. Therefore, the schedulable QoS resources of each operator network can be obtained in advance, data transmission is carried out based on the available network resources, the data transmission rate is guaranteed, the time delay of data transmission between the unmanned equipment and the control background is reduced, and the service requirement of remote control driving of the unmanned equipment is met.
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present application, and referring to fig. 1, the data transmission method according to the embodiment includes the following steps:
step S101, sending a QoS resource updating request to each operator server;
the QoS resource update request includes information of a travel path of the unmanned aerial vehicle at the current location point. The driving path information comprises a plurality of positioning points which are sequentially connected, the driving path indicates a route of the unmanned equipment and a passing key geographic position, the starting point of the driving path is a current positioning point, and the end point of the driving path is a preset positioning point.
Step S102, receiving QoS resource information of an operator network corresponding to the operator server; wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area being a next area to which the unmanned equipment will go, determined based on the travel path information and the current anchor point;
step S103, if the unmanned equipment runs to a positioning point corresponding to the target area, selecting the operator network as a carrier network according to the data volume of service data and the QoS resource information, and transmitting the service data through the carrier network.
As shown in fig. 1, in the data transmission method of this embodiment, QoS resource information of operator networks is obtained by sending a QoS resource update request to each operator server, and when the drone device travels to a next anchor point, one or more operator networks are selected as carrier networks according to the data volume of the service data and the QoS resource information, and the service data is transmitted through the carrier networks. Therefore, the multi-channel operator network is regulated, controlled and integrated, data are transmitted to the control background based on the overall available QoS resource condition of each operator network so as to realize unmanned remote control, the data transmission time delay between the unmanned equipment and the control background is reduced, the service requirement of the unmanned equipment for remote control driving is met, and a stable and reliable network environment is provided for upper-layer application of the unmanned equipment.
It should be noted that the foregoing method steps may be executed by corresponding modules in the data transmission apparatus.
Note: the unmanned aerial vehicle of the embodiment is provided with a navigation map, and generates a driving path including an input starting point and an input end point through the navigation map. How to generate the travel path information is the prior art, so the specific implementation details can be referred to the description in the prior art, and are not described herein again. If the current area indicated by the current anchor point is, for example, "beijing zhongguancun" and the next area is "hai lake yellow village", the step S12 is to receive QoS resource information of the operator network corresponding to the operator server, which means that the drone acquires QoS resource information of "hai lake yellow village" in "beijing zhongguancun".
QoS refers to the ability of a network to utilize a variety of underlying technologies to provide better service capabilities for a given network communication, and is a security mechanism for the network that can be used to resolve network delays and congestion. In general, QoS resource information that affects the network quality of service of data traffic includes: throughput, delay variation (including transmission jitter and wander), maximum guaranteed bandwidth, priority, etc. In a remote control service scenario of the unmanned aerial vehicle, bandwidth is a bottleneck that restricts data transmission between the unmanned aerial vehicle and the control background, and therefore, in this embodiment, the implementation steps of the data transmission method are mainly described by taking QoS resource information including an available bandwidth range as an example.
Bandwidth refers to the amount of data that can be transmitted in a unit of time (typically referred to as 1 second). The larger the bandwidth is, the more data is transmitted, and the more smooth the data transmission is. But the larger the bandwidth, the better, because for real traffic, the larger the bandwidth, the higher the communication cost. Moreover, the bandwidth is always limited, and if the network side allocates more bandwidth to the data transmission service of the unmanned device, it will tend to crowd and affect the communication resources of other users in the cell. Therefore, a reasonable balance point between data transmission delay and bandwidth needs to be found.
In this embodiment, after sending a QoS resource update request to each operator server, receiving an available bandwidth range of each operator network, and selecting an operator network as a carrier network according to a data volume of service data and QoS resource information specifically includes: and selecting at least one of the first operator network, the second operator network and the third operator network as a carrier network according to the data volume of the service data, the available bandwidth range of the first operator network, the available bandwidth range of the second operator network and the available bandwidth range of the third operator network.
That is to say, in the data transmission method of this embodiment, a corresponding operator network is selected as a carrier network according to the available bandwidth range fed back by each operator network to perform data transmission, and because the available bandwidth range fed back by each operator network is different, and the data volume of the service data transmitted each time is different, the selected carrier network is also different, and should be determined according to specific needs.
For example, in one embodiment, the data amount of the service data is compared with the available bandwidth range of the first operator network, and if the data amount falls within the available bandwidth range of the first operator network, the first operator network is selected as the carrier network; if the data amount is larger than the maximum available bandwidth of the available bandwidth range of the first operator network, comparing the remaining data amount with the available bandwidth range of the second operator network, and if the remaining data amount falls within the available bandwidth range of the second operator network, selecting the first operator network and the second operator network as carrier networks, wherein the remaining data amount is determined based on the data amount and the maximum available bandwidth of the available bandwidth range of the first operator network; if the remaining data amount is larger than the maximum available bandwidth of the available bandwidth range of the second operator network, continuing to compare the remaining data amount with the available bandwidth range of the third operator network, and if the remaining data amount falls within the available bandwidth range of the third operator network, selecting the first operator network, the second operator network and the third operator network as carrier networks, wherein the remaining data amount is determined based on the data amount, the maximum available bandwidth of the available bandwidth range of the first operator network, and the maximum available bandwidth of the available bandwidth range of the second operator network.
For example, the drone has three SIM cards (only as an example), card 1, card 2, and card 3, each SIM card being associated with an operator network, such as card 1 being associated with china mobile, card 2 being associated with china unicom, and card 3 being associated with china telecommunications. The available bandwidth ranges fed back by each operator server after receiving the QoS resource updating request are respectively as follows: the available bandwidth of China Mobile ranges from 20Mbps to 50Mbps, i.e., the lowest network bandwidth is 20Mbps, and the highest network bandwidth is 50 Mbps. The available bandwidth range of China Unicom is 15Mbps to 40Mbps, and the available bandwidth range of China telecom is 10Mbps to 60 Mbps. If the data volume of the service data to be transmitted by the drone is 55Mbps (for example only), according to the scheme of this embodiment, the data volume of the service data (i.e., 55Mbps) is compared with the available bandwidth range of the first operator network, and if the data volume falls within the available bandwidth range of the first operator network (e.g., 10Mbps to 60Mbps), the first operator network is selected as the carrier network. The first operator network may be a network of china telecommunications, or a network of china unicom or china mobile, which is not limited herein.
In practical application, different priorities may be set for different operator networks, and a certain operator network is used as a preferred network, for example, the priority of the chinese telecommunication is the highest among the three operator networks, so that the data volume of the service data is preferentially available in an available bandwidth range of the chinese telecommunication (e.g., 10Mbps to 60Mbps), and the data volume falls within the available bandwidth range of the first operator network, then the network of the chinese telecommunication is selected as the carrier network for the data transmission.
As described above, if the data volume of the service data to be transmitted is greater than the maximum value of the available bandwidth range of the chinese telecom, the difference between the data volume and the maximum value is calculated, the difference is used to obtain the remaining data volume, and whether the remaining data volume falls in the second operator network is compared, if yes, the chinese telecom network and the second operator network are selected to be used together as the carrier network to split the data volume and then perform data transmission. For example, the data volume of the service data to be transmitted is 100Mbps, obviously 100Mbps is greater than the maximum value 60Mbps of the available bandwidth range of the china telecom, the difference value is calculated to be 100-60 to 40Mbps, it can be known by comparing the remaining data volume of 40Mbps with the available bandwidth range of the china mobile, 20Mbps to 50Mbps, 40Mbps falls within the available bandwidth range of the china mobile, the unmanned equipment splits the service data to be transmitted, and transmits the split service data to the control background through the network of the china telecom and the network of the china mobile respectively, for example, the service data of 60Mbps is transmitted through the network of the china telecom, and the service data of 40Mbps is transmitted through the network of the china mobile.
As described above, the drone receives the available bandwidth range fed back by each operator network, so as to facilitate the operator network to reserve corresponding bandwidth resources for the data transmission service of the drone, thereby avoiding excessive occupation of bandwidth resources and causing interference to other users in the cell. That is, after the operator network is selected as the carrier network according to the data volume of the service data and the QoS resource information, the method of this embodiment further includes: sending a QoS scheduling request to an operator server corresponding to the carrier network, wherein the QoS scheduling request comprises the QoS resource information required to be occupied; and receiving scheduling feedback information sent by the operator server, wherein the scheduling feedback information is sent after the operator server allocates the QoS resources required to be occupied to the unmanned equipment.
For example, the unmanned device sends a QoS scheduling request to an operator server corresponding to a carrier network (such as a network of china telecommunication), the scheduling request includes information of QoS resources to be occupied (such as network bandwidth to be occupied is 55Mbps), and the unmanned device receives scheduling feedback information sent after the operator server (such as a network of china telecommunication) allocates the QoS resources to be occupied to the unmanned device.
Therefore, in the data transmission method of the embodiment of the invention, the operator network can know the next positioning point to be reached by the unmanned equipment in advance according to the driving path of the unmanned equipment, and schedule the QoS resource of the target cell corresponding to the next positioning point. Such as reserving bandwidth of a corresponding size for the drone. Therefore, the problem that the unmanned equipment cannot smoothly transmit data due to bandwidth limitation when the unmanned equipment runs to the next positioning point is solved, and the influence on communication experience caused by the fact that the unmanned equipment excessively occupies communication of other users in a cell after entering the cell corresponding to the next positioning point is avoided. Moreover, as the bandwidth consumption is directly related to the charge, the corresponding bandwidth can be reserved by knowing the network bandwidth occupied by the unmanned equipment in advance, so that the bandwidth waste can be avoided, and the communication cost of the unmanned remote control service is saved.
It should be noted that the sending, by the drone, the QoS resource update request to each operator server includes: and sending a QoS resource updating request to each operator server according to a preset time period. Such as sending a quality of service QoS resource update request every 1 minute. This is because the position of the unmanned device, such as an unmanned vehicle, is dynamically changed, and the unmanned vehicle can regenerate the travel path information after traveling to a new location point, so in this embodiment, the unmanned device sends a QoS resource update request to each operator server according to a preset time period, so as to ensure that the operator servers schedule QoS resources of the operator network according to the latest travel path information.
In the embodiment of the invention, there are two specific implementation manners for sending the QoS resource update request to each operator server, one is that the implementation manner sends the QoS resource update request to the proxy server, the proxy server forwards the QoS resource update request to each operator server, and the other is that the QoS resource update request is sent to each operator server respectively. The difference between the two implementations is whether the object interacting with the drone is a stand-alone proxy server or multiple operator servers.
A first implementation, namely, a relatively simple interaction of the drone with multiple operator servers, such as sending a QoS resource update request to each operator server through a communication terminal within the drone, where the communication terminal includes multiple SIM cards, each SIM card is associated with a different operator server, or the communication terminal includes one virtual SIM card, and the virtual SIM card includes authentication information of multiple different operator servers. That is, a communication terminal (e.g., a mobile phone) in the unmanned device may directly send a QoS resource update request to an operator server associated with an SIM card in the mobile phone.
For the second implementation manner, that is, the implementation manner of forwarding through the proxy server, a proxy server independent of the existing operator server needs to be set, the travel path information reported by the drone device is obtained through the proxy server, and is sent to the operator mobile network BOSS (Business & Operation Support System) for the BOSS System to allocate the QoS resources of the target cell. Referring specifically to fig. 2, the system architecture shown in fig. 2 includes an unmanned device, a proxy server, and an operator server;
step S201: sending a QoS resource updating request to a proxy server;
as described above, the quality of service QoS resource update request herein includes the travel path information of the unmanned device at the current anchor point.
In practical application, each operator server constructs a cell coverage area topology to record a geographical area covered by each cell, and the topological structures of the cell coverage areas constructed by different operators are different. For example, for the same site, "beijing, guancun," belongs to cell 1 (for example only) in the cell coverage area topology of chinese telecommunications, and to cell 20 (for example only) in the cell coverage area topology of chinese mobile. Furthermore, the topology of the cell coverage areas of the various operators is not usually open. Based on this, in this embodiment, the travel path information is generated based on geographic location information (such as longitude and latitude), and after the operator server receives the travel path information sent by the drone, the operator server determines the cell to which the anchor point belongs according to the mapping relationship between the cell and the coverage area stored in each operator server, and schedules the network resource in the cell to which the anchor point belongs.
Note: a cell, also called a cell, refers to an area covered by a base station or a part of a base station (sector antenna) in a cellular mobile communication system, in which area a mobile station can reliably communicate with the base station via a radio channel.
Referring to fig. 2, step S202: forwarding a QoS resource updating request to each operator server;
in the embodiment, the proxy server serves as an intermediary between the unmanned aerial vehicle and the operator servers, receives the QoS resource updating request of the unmanned aerial vehicle and forwards the QoS resource updating request to each operator server. For example, the proxy server receives a QoS resource update request of the card 1 installed on the communication terminal in the drone, and sends the QoS resource update request to the china mobile server associated with the card 1.
Step S203: updating network allocable resource information;
in the above example, after receiving the QoS resource update request forwarded by the proxy server, the china mobile server determines the available bandwidth range, and sends the information of the network-update-assignable resource to the proxy server.
Step S204: updating schedulable QoS resource information of the SIM card associated network;
the unmanned aerial vehicle executes step S204, and after receiving the network-assignable resource updating information sent by the proxy server, the unmanned aerial vehicle updates the locally-recorded schedulable QoS resources, such as available bandwidth resource information, of the network associated with the SIM card (such as card 1).
Step S205: initiating a QoS scheduling request;
and the unmanned equipment sends a QoS scheduling request to the proxy server according to the data volume of the service data to be transmitted and the available bandwidth range replied by each operator server. The QoS scheduling request includes information of the bandwidth range (such as 55Mbps) that the unmanned device needs to occupy.
Step S206: forwarding the QoS scheduling request;
and after receiving the QoS scheduling request, the proxy server forwards the QoS scheduling request to a corresponding operator server.
Step S207: feedback of QoS scheduling requests;
and after receiving the QoS scheduling request forwarded by the proxy server, the operator server reserves the bandwidth indicated by the bandwidth range which needs to be occupied by the unmanned equipment to the unmanned equipment, and sends the QoS scheduling request back to the proxy server.
Step S208: forwarding feedback of the QoS scheduling request;
and after receiving the QoS scheduling request feedback, the proxy server forwards the QoS scheduling request feedback to the unmanned equipment so as to inform the unmanned equipment that the QoS resource scheduling is finished and the QoS scheduling request feedback can be used for subsequent data transmission.
Therefore, the unmanned equipment informs the proxy server of the running path information of the current locating point in advance, and forwards the running path information to the operator network through the proxy server, so that the operator network can conveniently predict the running path information of the unmanned equipment, and the QoS resource of the target cell is scheduled based on the running path information, for example, the air interface bandwidth resource is reserved for the remote control service of the unmanned equipment, so as to reduce the disturbance to other users in the cell. Furthermore, the unmanned equipment learns the QoS resource conditions of each network, and can select an operator network for bearing signaling based on the whole bandwidth resource of the network and the size of the transmitted data, so that the problem that the data cannot be transmitted or the transmission is delayed due to insufficient bandwidth is avoided.
The same technical concept as the foregoing data transmission method is also included, and an embodiment of the present application further provides a data transmission apparatus, referring to fig. 3, where the data transmission apparatus 300 of the present embodiment is applied to an unmanned device, and includes:
a sending module 301, configured to send a QoS resource update request to each operator server, where the QoS resource update request includes information of a travel path of the unmanned device at a current location point;
a receiving module 302 for receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area being a next area to which the unmanned equipment will go determined based on the travel path information and the current anchor point,
a transmission module 303, configured to select the operator network as a carrier network according to the data volume of the service data and the QoS resource information if the unmanned device travels to a location point corresponding to the target area, and transmit the service data through the carrier network.
In an embodiment of the present invention, the QoS resource information includes an available bandwidth range, and the transmission module 303 is specifically configured to select at least one of the first operator network, the second operator network, and the third operator network as a carrier network according to a data amount of the service data, the available bandwidth range of the first operator network, the available bandwidth range of the second operator network, and the available bandwidth range of the third operator network.
In an embodiment of the present invention, the transmission module 303 is specifically configured to compare a data amount of the service data with the available bandwidth range of the first operator network, and select the first operator network as a carrier network if the data amount falls within the available bandwidth range of the first operator network; comparing a remaining amount of data with the available bandwidth range of the second operator network if the amount of data is greater than a maximum available bandwidth of the available bandwidth range of the first operator network, and selecting the first operator network and the second operator network as carrier networks if the remaining amount of data falls within the available bandwidth range of the second operator network, wherein the remaining amount of data is determined based on the amount of data and a maximum available bandwidth of the available bandwidth range of the first operator network; if the remaining amount of data is larger than a maximum available bandwidth of the available bandwidth range of the second operator network, continuing to compare the remaining amount of data with the available bandwidth range of the third operator network, if the remaining amount of data falls within the available bandwidth range of the third operator network, selecting the first operator network, the second operator network and the third operator network as carrier networks, wherein the remaining amount of data is determined based on the amount of data, a maximum available bandwidth of the available bandwidth range of the first operator network, a maximum available bandwidth of the available bandwidth range of the second operator network.
In an embodiment of the present invention, the data transmission apparatus 300 shown in fig. 3 further includes a scheduling interaction module, configured to send a QoS scheduling request to an operator server corresponding to the carrier network, where the QoS scheduling request includes information of the QoS resources that need to be occupied; and receiving scheduling feedback information sent by the operator server, wherein the scheduling feedback information is sent after the operator server allocates the QoS resources required to be occupied to the unmanned equipment.
In an embodiment of the present invention, the sending module 301 is specifically configured to send a QoS resource update request to a proxy server, and the proxy server forwards the QoS resource update request to each operator server, or respectively sends a QoS resource update request to each operator server.
In an embodiment of the present invention, the sending module 301 is specifically configured to send, by a communication terminal in the unmanned device, a QoS resource update request to each of the operator servers, where the communication terminal includes a plurality of SIM cards, each of the SIM cards is associated with a different one of the operator servers, or the communication terminal includes one virtual SIM card, and the virtual SIM card includes authentication information of a plurality of different one of the operator servers.
In an embodiment of the present invention, the sending module 301 is specifically configured to send a QoS resource update request to each operator server according to a preset time period.
It should be noted that, the exemplary explanation of each function executed by each module in the data transmission device shown in fig. 3 is consistent with the exemplary explanation in the foregoing method embodiment, and is not repeated here.
Fig. 4 is a block diagram of a proxy server according to an embodiment of the present application, and referring to fig. 4, a proxy server 400 according to this embodiment includes: a first communication module 401 and a second communication module 402;
a first communication module 401, configured to obtain a QoS resource update request sent by the drone, and forward the QoS resource update request to each operator server, where the QoS resource update request includes information of a travel path of the drone at a current location point;
a second communication module 402 for receiving QoS resource information of an operator network corresponding to the operator server, which is transmitted by the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area being a next area to be visited by the unmanned aerial device determined based on travel path information of the unmanned aerial device and the current location point,
the first communication module 401 is further configured to send the QoS resource information to the unmanned aerial vehicle, so that if the unmanned aerial vehicle travels to a location point corresponding to the target area, the carrier network is selected as the operator network according to the data volume of the service data and the QoS resource information, and the service data is transmitted through the carrier network.
It should be noted that, the illustration of each function executed by each module in the proxy server shown in fig. 4 is consistent with the illustration in the foregoing method embodiment, and is not repeated here.
Fig. 5 is a block diagram of an operator server according to an embodiment of the present application, and referring to fig. 5, an operator server 500 of the present embodiment includes: an acquisition module 501, a determination module 502 and a feedback module 503;
the acquiring module 501 is configured to acquire a QoS resource update request from an unmanned device, where the QoS resource update request includes information of a travel path of the unmanned device at a current location point;
the determining module 502 is configured to determine QoS resource information of a target area of an operator network, where the target area is a next area to which the unmanned device will go, which is determined based on the driving path information of the unmanned device and the current anchor point;
the feedback module 503 is configured to send the QoS resource information to the unmanned aerial vehicle, so that if the unmanned aerial vehicle travels to a location point corresponding to the target area, the carrier network is selected as the operator network according to the data volume of the service data and the QoS resource information, and the service data is transmitted through the carrier network.
In an embodiment of the present invention, the obtaining module 501 is further configured to obtain a QoS scheduling request from the unmanned device, where the QoS scheduling request includes information of the QoS resources that need to be occupied; the operator server 500 further includes a scheduling module, configured to send scheduling feedback information to the unmanned device after the QoS resources to be occupied are allocated to the unmanned device.
FIG. 6 is a block diagram of a data transmission system according to one embodiment of the present application; referring to fig. 6, the data transmission system 600 of the present embodiment includes an unmanned aerial device 601, a proxy server 400 in the foregoing embodiment, or a plurality of operator servers 500 in the foregoing embodiment,
the drone 601 comprises the data transmission device 300 of the previous embodiment.
It should be noted that fig. 6 only shows a case of one operator server 500, and the data transmission system in practical application may include a plurality of operator servers, such as a china mobile server, a china unicom server, and the like, without limitation, and each operator server is connected to the unmanned device.
In summary, in the data transmission scheme of this embodiment, the unmanned device obtains the QoS resource conditions of each mobile communication network before transmitting data, and performs integration according to the QoS resource conditions of the mobile communication networks, and selects the network with the highest reliability to carry service data, thereby providing a stable and reliable network access environment for the upper layer service. In addition, since the data transmission of the unmanned device occupies network resources, the communication experience of other users may be reduced, and therefore, in this embodiment, the driving path information of the unmanned device is notified to the operator network in advance, so that the operator network can conveniently schedule available resources, the disturbance to other communication users in the cell is reduced, and the communication cost is also saved.
It should be noted that:
the algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may also be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. In addition, embodiments of the present application are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the embodiments of the present application as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the embodiments of the present application.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the embodiments of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various application aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, claimed embodiments of this application require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the embodiments of the application and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a page performance testing apparatus according to embodiments of the present application. The present application may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing embodiments of the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
For example, fig. 7 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present application. The drone 700 includes: a processor 701 and a memory 702 storing computer programs operable on the processor 701. A processor 701 configured to execute the steps of the method in the embodiment of the present application when executing the computer program in the memory 702. The memory 702 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. The memory 702 has a memory space 703 in which a computer program 704 for performing any of the method steps of the above-described method is stored. The computer program 704 may be read from or written to one or more computer program products. These computer program products comprise a program code carrier such as a hard disk, a Compact Disc (CD), a memory card or a floppy disk. Such a computer program product is typically a non-transitory computer readable storage medium such as that shown in fig. 8.
FIG. 8 is a schematic structural diagram of a non-transitory computer-readable storage medium according to an embodiment of the present application. The computer-readable storage medium 800 stores a computer program 704 for performing the steps of the method according to an embodiment of the application, which computer program 704 is readable by a processor 701 of the drone 700 and, when the computer program 704 is run by the drone 700, causes the drone 700 to perform the steps of the method described above, in particular the computer program 704 stored by the computer-readable storage medium may perform the method shown in any of the embodiments described above. The computer program 704 may be compressed in a suitable form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the embodiments of the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The embodiments of the application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words, second, third, etc. do not denote any order, and the words may be interpreted as names.
Claims (14)
1. A data transmission method, applied to an unmanned device, comprising:
sending a QoS resource updating request to each operator server, wherein the QoS resource updating request comprises the information of the driving path of the unmanned equipment at the current positioning point;
receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, and the target area is a next area to which the unmanned equipment is to go, which is determined based on the travel path information and the current positioning point;
selecting the operator network as a carrier network according to the data volume of the service data and the QoS resource information, wherein the operator server corresponding to the carrier network reserves corresponding QoS resources for the unmanned equipment according to the QoS resource information which needs to be occupied by the unmanned equipment at the positioning point corresponding to the target area; and if the unmanned equipment runs to a positioning point corresponding to the target area, transmitting the service data through the carrier network.
2. The method of claim 1, wherein the QoS resource information includes an available bandwidth range,
the selecting the operator network as a carrier network according to the data volume of the service data and the QoS resource information includes:
selecting at least one of the first operator network, the second operator network and the third operator network as a carrier network according to the data volume of the service data, the available bandwidth range of the first operator network, the available bandwidth range of the second operator network and the available bandwidth range of the third operator network.
3. The method of claim 2, wherein said selecting at least one of the first operator network, the second operator network, and the third operator network as a carrier network in dependence on the amount of data of the traffic data, the available bandwidth range of the first operator network, the available bandwidth range of the second operator network, and the available bandwidth range of the third operator network comprises:
comparing the amount of traffic data with the available bandwidth range of the first operator network,
selecting the first operator network as a carrier network if the amount of data falls within the available bandwidth range of the first operator network;
comparing a remaining amount of data with the available bandwidth range of the second operator network if the amount of data is greater than a maximum available bandwidth of the available bandwidth range of the first operator network, and selecting the first operator network and the second operator network as carrier networks if the remaining amount of data falls within the available bandwidth range of the second operator network, wherein the remaining amount of data is determined based on the amount of data and a maximum available bandwidth of the available bandwidth range of the first operator network;
if the remaining amount of data is greater than a maximum available bandwidth of the available bandwidth range of the second operator network, continuing to compare the remaining amount of data to the available bandwidth range of the third operator network,
selecting the first operator network, the second operator network and the third operator network as carrier networks if the remaining amount of data falls within the available bandwidth range of the third operator network,
wherein the remaining amount of data is determined based on the amount of data, a maximum available bandwidth of the available bandwidth range of the first operator network, and a maximum available bandwidth of the available bandwidth range of the second operator network.
4. The method of claim 1, wherein after the selecting the operator network as a carrier network according to the data amount of the traffic data and the QoS resource information, the method further comprises:
sending a QoS scheduling request to an operator server corresponding to the carrier network, wherein the QoS scheduling request comprises the QoS resource information required to be occupied;
and receiving scheduling feedback information sent by the operator server, wherein the scheduling feedback information is sent after the operator server allocates the QoS resources required to be occupied to the unmanned equipment.
5. The method of claim 1, wherein said sending a quality of service (QoS) resource update request to each operator server comprises:
sending a quality of service, QoS, resource update request to a proxy server, forwarding, by the proxy server, the QoS resource update request to each of the operator servers,
or respectively sending a QoS resource updating request to each operator server.
6. The method of claim 5, wherein said separately sending quality of service (QoS) resource update requests to each of said operator servers comprises:
sending a quality of service QoS resource update request to each of the operator servers through a communication terminal within the unmanned aerial device,
the communication terminal comprises a plurality of SIM cards, each SIM card is associated with different operator servers, or the communication terminal comprises a virtual SIM card, and the virtual SIM card comprises authentication information of the different operator servers.
7. The method of claim 1, wherein said sending a quality of service (QoS) resource update request to each operator server comprises:
and sending a QoS resource updating request to each operator server according to a preset time period.
8. A data transmission device, for use in an unmanned aerial vehicle, comprising:
the system comprises a sending module, a quality of service (QoS) resource updating module and a positioning module, wherein the sending module is used for sending a QoS resource updating request to each operator server, and the QoS resource updating request comprises the information of a driving path of the unmanned equipment at a current positioning point;
a receiving module for receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, the target area being a next area to which the unmanned equipment will go, determined based on the travel path information and the current anchor point,
the transmission module is used for selecting the operator network as a carrier network according to the data volume of the service data and the QoS resource information, wherein the operator server corresponding to the carrier network reserves corresponding QoS resources for the unmanned equipment according to the QoS resource information which needs to be occupied by the unmanned equipment at the positioning point corresponding to the target area; and if the unmanned equipment runs to a positioning point corresponding to the target area, transmitting the service data through the carrier network.
9. A proxy server, comprising: a first communication module and a second communication module;
the first communication module is used for acquiring a QoS resource updating request sent by the unmanned equipment and forwarding the QoS resource updating request to each operator server, wherein the QoS resource updating request comprises the traveling path information of the unmanned equipment at the current positioning point;
the second communication module is used for receiving QoS resource information of an operator network corresponding to the operator server, wherein the QoS resource information is QoS resource information of a target area of the operator network, and the target area is a next area to which the unmanned equipment goes, which is determined based on the driving path information of the unmanned equipment and the current positioning point,
the first communication module is further configured to send the QoS resource information to the unmanned aerial vehicle, so that the unmanned aerial vehicle selects the operator network as a carrier network according to a data volume of service data and the QoS resource information, where an operator server corresponding to the carrier network reserves a corresponding QoS resource for the unmanned aerial vehicle according to QoS resource information that the unmanned aerial vehicle needs to occupy at a location point corresponding to the target area; and if the unmanned equipment runs to a positioning point corresponding to the target area, transmitting the service data through the carrier network.
10. A carrier server, comprising: the device comprises an acquisition module, a determination module and a feedback module;
the acquiring module is used for acquiring a QoS resource updating request from the unmanned equipment, wherein the QoS resource updating request comprises the traveling path information of the unmanned equipment at the current positioning point;
the determining module is configured to determine QoS resource information of a target area of an operator network, where the target area is a next area to which the unmanned equipment will go, which is determined based on the travel path information of the unmanned equipment and the current location point;
the feedback module is configured to send the QoS resource information to the unmanned aerial vehicle, so that the unmanned aerial vehicle selects the operator network as a carrier network according to a data volume of service data and the QoS resource information, where an operator server corresponding to the carrier network reserves a corresponding QoS resource for the unmanned aerial vehicle according to QoS resource information that the unmanned aerial vehicle needs to occupy at a location point corresponding to the target area; and if the unmanned equipment runs to a positioning point corresponding to the target area, transmitting the service data through the carrier network.
11. The operator server of claim 10,
the obtaining module is further configured to obtain a QoS scheduling request from the unmanned device, where the QoS scheduling request includes the QoS resource information that needs to be occupied;
the operator server further comprises a scheduling module,
and the scheduling module is used for distributing the QoS resources required to be occupied to the unmanned equipment and then sending scheduling feedback information to the unmanned equipment.
12. A data transmission system, comprising:
the unmanned aerial vehicle is provided with a device,
the proxy server of claim 9, or a plurality of operator servers as claimed in claim 10,
the unmanned device comprising the data transmission arrangement of claim 8.
13. An unmanned device, characterized in that the unmanned device comprises: a processor and a memory; the memory is for storing a computer program executable on the processor;
the processor, when executing the computer program in the memory, for performing the steps of the method of any one of claims 1-7.
14. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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| US11172019B1 (en) * | 2020-08-28 | 2021-11-09 | Tencent America LLC | Systems and methods for unmanned aerial system communication |
| CN111884939B (en) * | 2020-08-31 | 2022-04-08 | 广州文远知行科技有限公司 | Data transmission method, device, mobile carrier and storage medium |
| CN112422659A (en) * | 2020-11-06 | 2021-02-26 | 腾讯科技（深圳）有限公司 | Business data processing method and device and readable storage medium |
| CN113692030A (en) * | 2021-08-25 | 2021-11-23 | 北京三快在线科技有限公司 | Unmanned vehicle communication method, device, storage medium and electronic equipment |
| CN115087060A (en) * | 2022-06-13 | 2022-09-20 | 多利购科技(广州)有限公司 | Intelligent shopping cart network switching method, system, equipment and medium |
| CN115499435B (en) * | 2022-08-08 | 2023-08-11 | 中亿(深圳)信息科技有限公司 | Task scheduling method, system, electronic device and computer readable storage medium |
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