CN107395265B - Positioning information sending method and device, positioning information receiving method and device, and transmission system - Google Patents
Positioning information sending method and device, positioning information receiving method and device, and transmission system Download PDFInfo
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- CN107395265B CN107395265B CN201710599382.8A CN201710599382A CN107395265B CN 107395265 B CN107395265 B CN 107395265B CN 201710599382 A CN201710599382 A CN 201710599382A CN 107395265 B CN107395265 B CN 107395265B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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Abstract
The application provides a positioning information sending method and device, a positioning information receiving method and device, and a transmission system, and relates to the technical field of information, wherein the positioning information sending method comprises the following steps: in a communication cycle, N big dipper communication cards send a set of locating information to the opposite terminal respectively at different moments, wherein, N more than or equal to 2 makes through above-mentioned setting when using many big dipper communication cards to carry out the conveying of locating information, can gather a plurality of locating information in a communication cycle to send, thereby make the user can obtain more intensive accurate locating information, improved the supervision effect to moving object.
Description
Technical Field
The present invention relates to the field of information technologies, and in particular, to a method and an apparatus for sending positioning information, a method and an apparatus for receiving positioning information, and a transmission system.
Background
The Beidou navigation system is a widely used satellite navigation system and is used for determining the geographical longitude and latitude information of a user. At present, the Beidou navigation system consists of more than 30 satellites and covers Asia-Pacific areas, wherein the short message module is a great technical advantage of the Beidou navigation system and plays an important role in areas with poor mobile communication conditions, such as sea, unmanned areas, disaster occurrence areas and the like.
In recent years, a single-card short message communication technology is used for realizing remote supervision of moving targets such as vehicles and unmanned planes by using a single short message Beidou communication card. For example, because a light and small unmanned aerial vehicle belongs to a low, slow and small flying target, the existing air management technical means and systems in China can not see and can not manage, and therefore hidden dangers exist in the flying safety management of the unmanned aerial vehicle. The short message communication technology adopting a single Beidou communication card can realize effective supervision on the unmanned aerial vehicle, namely the position information of the moving targets such as the unmanned aerial vehicle and the like is sent in a short message mode through a radio frequency baseband sending module in RDSS (remote Data services) according to a preset communication protocol and a fixed communication period, so that the ground supervision center can receive the short message by using a radio frequency baseband receiving module of the Beidou commanding machine and then interpret the short message according to the preset communication protocol to obtain the position Data of the moving targets.
In addition, the message length specified by the protocol is limited, the short message length is 112 Chinese characters with the maximum length, and 46 Chinese characters are generally used for civil use, so that the transmission information is limited, the transmission of a large amount of position data of the moving target cannot be realized, and further the real-time tracking of the position of the moving target cannot be realized. Moreover, the communication period of the Beidou communication card is a fixed value, and the common communication periods are 30 seconds, 40 seconds, 50 seconds and 60 seconds. For example, a single-card Beidou communication terminal with a fixed communication period of 30 seconds is adopted, each position information message contains positioning information, and on the premise that the delay of a Beidou system is not considered, the monitoring platform can only receive 1 piece of position information within 30 seconds, so the real-time performance is poor, and assuming that the average speed of a vehicle or an unmanned aerial vehicle is about 100Km/h, the position information of a moving target is calculated once according to 30S communication, the distance between two adjacent points is about 900 meters, if a short message fails in the transmitting or receiving process, the accurate positioning position is difficult to obtain, and the monitoring effect is seriously influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a positioning information sending method and apparatus, a positioning information receiving method and apparatus, and a transmission system, so that positioning information is more accurate by setting N beidou communication cards in one communication cycle.
In a first aspect, an embodiment of the present invention provides a method for sending location information, including:
in a communication period, the N Beidou communication cards respectively send a group of positioning information to the opposite terminal at different moments, wherein N is more than or equal to 2.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the N beidou communication cards start to time sequentially from a power-on time by taking M/N seconds as a timing interval, where a communication cycle of each beidou communication card is M seconds.
In combination with the first aspect, the embodiments of the present invention provide a second possible implementation manner of the first aspect, wherein,
setting the time of M + (M/N) ((N-1)) (N/(N L)) as the sampling starting point of the Nth group of positioning information, wherein L is the number of the positioning information sent by each Beidou communication card;
setting the time of M/(N x L) as the sampling interval between the N groups of L positioning information;
and respectively collecting L positioning information within M/N seconds before the sampling start point, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
In a second aspect, an embodiment of the present invention provides a positioning information sending apparatus, including:
and the positioning information sending module is used for sending a group of positioning information to the opposite terminal by the N Beidou communication cards at different moments in one communication period, wherein N is more than or equal to 2.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the timing module is configured to start timing the N beidou communication cards sequentially from a power-on time by taking M/N seconds as a timing interval, where a communication cycle of each beidou communication card is M seconds.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the sampling start point setting module is configured to set a time of M + (M/N) × (N-1) - (N-1) × (M/(N × L)) as a sampling start point of an nth group of positioning information, where L is a number of positioning information sent by each beidou communication card;
a sampling interval setting module, configured to set M/(N × L) time as a sampling interval between the nth group of L positioning information;
and the positioning information sampling module is used for respectively acquiring L positioning information within M/N seconds before the sampling starting point, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
In a third aspect, an embodiment of the present invention provides a method for receiving positioning information, including:
sequentially receiving N groups of positioning information sent by N Beidou communication cards;
and respectively calculating the receiving delay of N groups of L positioning information.
In a fourth aspect, an embodiment of the present invention provides a positioning information receiving apparatus, including:
the receiving module is used for sequentially receiving N groups of positioning information sent by N Beidou communication cards, wherein each group comprises L pieces of positioning information;
and the delay calculation module is used for respectively calculating the receiving delay of L positioning information in the N groups of positioning information.
In a fifth aspect, an embodiment of the present invention provides a positioning information transmission system, including: a core processor, a ground analysis device, the positioning information transmitting device and the positioning information receiving device;
the core processor, the positioning information sending device, the positioning information receiving device and the ground analysis device are sequentially connected;
the core processor is used for extracting positioning information from the received positioning data and sending the positioning information to the positioning information sending device;
positioning information transmitting means for transmitting the positioning information to positioning information receiving means;
and the ground analysis device is used for analyzing the positioning information received by the positioning information receiving device according to a preset rule so as to obtain a positioning position.
With reference to the fifth aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the second possible implementation manner further includes a user terminal;
and the user terminal is connected with the ground analysis device and used for receiving the positioning position sent by the ground analysis device and displaying the positioning position.
The embodiment of the invention provides a positioning information sending method and device, a positioning information receiving method and device, and a transmission system, wherein the positioning information sending method comprises the following steps: in a communication period, N Beidou communication cards respectively send a group of positioning information to an opposite terminal at different moments, wherein N is more than or equal to 2. And the N Beidou communication cards start to time sequentially by taking M/N seconds as a timing interval from the moment of electrification, wherein the communication period of each Beidou communication card is M seconds. The acquisition process of the positioning information is as follows: setting M- (N-1) × (M/(N × L)) time as a sampling starting point of the Nth group of positioning information, wherein L is the number of the positioning information sent by each Beidou communication card, setting M/(N × L) time as a sampling interval between the Nth group of L positioning information, and respectively collecting the L positioning information within M/N seconds before the sampling starting point, wherein the Nth group of the L positioning information is between the Nth communication period and the first sampling point of the Nth group. By the method, the positioning information is acquired and sent in a large density, and a user end can obtain a more accurate positioning position.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a flowchart of a method for sending location information according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a method for sending location information according to an embodiment of the present invention;
fig. 3 is a structural framework diagram of a positioning information transmitting apparatus according to an embodiment of the present invention;
fig. 4 shows a connection diagram of a positioning information transmission system according to an embodiment of the present invention.
Icon: 1-sampling starting point setting module; 2-a sampling interval setting module; 3-positioning information sampling module; 4-a core processor; 5-a positioning information transmitting device; 6-positioning information receiving means; 7-ground resolution device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The Beidou navigation system is a widely used satellite navigation system and is used for determining the geographical longitude and latitude information of a user. At present, the Beidou navigation system consists of more than 30 satellites and covers Asia-Pacific areas, wherein the short message module is a great technical advantage of the Beidou navigation system and plays an important role in areas with poor mobile communication conditions, such as sea, unmanned areas, disaster occurrence areas and the like. In the prior art, a single-card-based short message communication technology is adopted, and a single short message Beidou communication card is used for realizing remote supervision of moving targets such as vehicles, unmanned aerial vehicles and the like. The short message communication technology adopting a single Beidou communication card can realize effective supervision on the unmanned aerial vehicle, namely the position information of the moving targets such as the unmanned aerial vehicle and the like is sent in a short message mode through a radio frequency baseband sending module in RDSS (remote Data services) according to a preset communication protocol and a fixed communication period, so that the ground supervision center can receive the short message by using a radio frequency baseband receiving module of the Beidou commanding machine and then interpret the short message according to the preset communication protocol to obtain the position Data of the moving targets.
However, the message length specified by the protocol is limited, so that the transmission information is limited, the transmission of a large amount of position data of the moving target cannot be realized, and the real-time tracking of the position of the moving target cannot be realized. The communication period of the Beidou communication card is fixed, and the commonly applied communication period is concentrated in 30 seconds, 40 seconds, 50 seconds and 60 seconds, namely, the Beidou communication card with a single short message communicates once every 30 seconds, 40 seconds, 50 seconds or 60 seconds. For example, the average speed of the vehicle or the unmanned aerial vehicle is about 100Km/h, the communication period of the Beidou communication card is set to 30S, and the distance between two adjacent points acquired by the Beidou communication card is about 900 meters, so that the position information of the moving target may be lost at long time intervals.
Based on this, embodiments of the present invention provide a positioning information sending method and apparatus, a positioning information receiving method and apparatus, and a transmission system, which are described below by way of embodiments.
The method is characterized in that: in a communication period, the N Beidou communication cards respectively send a group of positioning information to the opposite terminal at different moments, wherein N is more than or equal to 2. Here, the opposite end mainly refers to the receiving end. During the concrete implementation, adopt N big dipper communication cards, here, the communication cycle of every big dipper communication card is M seconds, every communication card carries out progressive initialization processing in proper order in big dipper communication terminal circular telegram in the twinkling of an eye, N big dipper communication cards begin to use M/N seconds as the timing interval to begin timing in proper order respectively from the circular telegram moment promptly, it is specific, first big dipper communication card begins the timing in the circular telegram in the twinkling of an eye, second big dipper communication card begins the timing in M/N seconds, third big dipper communication card begins the timing … … and so on in 2M/N seconds, accomplish initialization processing.
Then, each Beidou communication card starts to sample positioning information, the time of M- (N-1) × (M/(N × L)) is set as the sampling starting point of the Nth group of positioning information, wherein L is the number of the positioning information sent by each Beidou communication card, the time of M/(N × L) is set as the sampling interval between the L positioning information of the Nth group, and the L positioning information is collected within M/N seconds before the sampling starting point respectively, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
Specifically, the first Beidou communication card sends a first group of positioning information when the time is M seconds, the group of positioning information contains L pieces of positioning information, and the positioning information is uniformly distributed according to M/(N × L) time intervals in M/N seconds before the collected M seconds.
The second Beidou communication card sends a second group of positioning information at the time of M + M/N seconds, similarly, the group of positioning information contains L positioning information, the positioning information is the positioning information which is extracted by the core processor 4 and evenly distributed according to the time interval of M/(N × L) within the time interval of M/N seconds before the time of M + M/N seconds, and by analogy, N times of position information packet sending is just finished at the time of 2M seconds, namely, the sending of the supervision target position information of a progressive link is finished, and the second Beidou communication card contains N × L positioning information evenly distributed within the time interval of M seconds.
Then, the position information of the supervision target in the next progressive link is sent, and the civil low-frequency communication card can realize the position information transmission of a large number of high-frequency (M/N) (N × L) supervision targets by repeating the steps;
example 1
Referring to fig. 1 and fig. 2, the method for sending location information according to this embodiment specifically includes:
the invention adopts a progressive card distribution mode in the Beidou communication terminal, and in a communication period, N Beidou communication cards respectively send a group of positioning information to an opposite terminal at different moments, wherein N is more than or equal to 2, namely, at least two Beidou communication cards are required to be distributed at a sender of the Beidou communication terminal.
In this embodiment, taking the example of arranging 4 cards in the beidou communication terminal (that is, N equals 4) as an example, and the communication period of each beidou communication card is M seconds, here, the communication period of each beidou communication card is set to 30 seconds for specific explanation.
Firstly, the N Beidou communication cards start to time sequentially by taking M/N seconds as a timing interval from the moment of electrifying. At big dipper communication terminal circular telegram in the twinkling of an eye (being marked as 0 second moment), adopt the initialization setting of progressive formula to 4 big dipper communication cards to use M/N second as the timing interval, in this embodiment, M/N is 30/4 for 7.5 seconds, first big dipper communication card begins the timing in 0 seconds promptly, second big dipper communication card begins the timing in 7.5 seconds, third big dipper communication card begins the timing in 15 seconds, fourth big dipper communication card begins the timing in 22.5 seconds.
Next, the sampling process of the positioning information refers to the following steps, step S101: setting the time M + (M/N) × (N-1) - (N-1) × (M/(N × L)) as the sampling start point of the nth set of positioning information, step S102: the time of M/(N L) is set as the sampling interval between the N-th group of L positioning information. In this embodiment, L is the number of positioning information sent by each big dipper communication card, and is described by taking L ═ 3 as an example, that is, three (L ═ 3) pieces of position information uniformly distributed in an interval of 7.5 seconds before the transmission time, that is, the position information of three times of 25 seconds, 27.5 seconds and 30 seconds extracted for the central processor, which is transmitted by the first big dipper communication card at the time of M ═ 30 seconds, and similarly, the position information of three times of 32.5 seconds, 35 seconds and 37.5 seconds extracted for the central processor, which is transmitted by the second big dipper communication card at the time of M + M/N ═ 37.5 seconds, and so on. Here, step S103 needs to be emphasized: and each Beidou communication card respectively collects L positioning information within M/N seconds before the sampling starting point, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group. Namely, the third positioning information (25 seconds) of the first Beidou communication card is between the first communication period (30 seconds) and the first sampling point (22.5 seconds) of the first group.
In summary, the method for sending location information provided by this embodiment includes: in a communication cycle, N big dipper communication cards send a set of locating information to the opposite terminal at different moments respectively, wherein, N more than or equal to 2, through the setting of many big dipper communication cards of the aforesaid, make a plurality of locating information can send in a communication cycle, like this, make the user can obtain more intensive accurate locating information, and then improved the supervision effect to moving object.
Example 2
Referring to fig. 3, the positioning information sending apparatus 5 provided in this embodiment specifically includes a positioning information sending module, configured to send a set of positioning information to an opposite end at different times by N beidou communication cards in one communication cycle, where N is greater than or equal to 2.
Furthermore, the positioning information transmitting apparatus 5 further includes: and the timing module is used for sequentially starting timing the N Beidou communication cards by taking M/N seconds as a timing interval from the power-on moment, wherein the communication period of each Beidou communication card is M seconds.
Furthermore, the positioning information transmitting apparatus 5 further includes: the Beidou communication card comprises a sampling starting point setting module 1, a sampling interval setting module 2 and a positioning information sampling module 3, wherein the sampling starting point setting module 1 is used for setting M- (N-1) × (M/(N × L)) time as the sampling starting point of the Nth group of positioning information, L is the number of the positioning information sent by each Beidou communication card, the sampling interval setting module 2 is used for setting M/(N × L) time as the sampling interval between the L positioning information of the Nth group, the positioning information sampling module 3 is used for respectively collecting the L positioning information within M/N seconds before the sampling starting point, and the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
In summary, the positioning information sending apparatus 5 provided in this embodiment includes: and the positioning information sending module is used for sending positioning information to the opposite terminal at different moments through the N Beidou communication cards in one communication period, and obviously, the positioning information is in a plurality of groups. Furthermore, the positioning information transmitting apparatus 5 further includes: and the timing module is used for initializing each Beidou communication card. Furthermore, the positioning information transmitting apparatus 5 further includes: the sampling start point setting module 1, the sampling interval setting module 2 and the positioning information sampling module 3 which are connected in sequence are used for collecting a plurality of positioning information when in use. Through the arrangement, a plurality of Beidou communication cards can send a plurality of positioning information outwards in one communication period, and the positioning accuracy is further improved.
Example 3
The embodiment provides a positioning information receiving method, which includes: receive N group's locating information that N big dipper communication cards sent in proper order, and, calculate N group's L locating information's receipt time delay respectively, in order to set up 4 big dipper communication cards, the communication cycle of every big dipper communication card sets up to 30 seconds, every big dipper communication card gathers 3 sampling points (L ═ 3) for the example, then among the locating information receiving arrangement 6, the biggest time delay is promoted to present M (L-1)/(N ═ L) ═ 5 seconds by original M ═ 30 seconds, to the promotion that the supervision real-time nature of supervision target is qualitative.
In summary, the positioning information receiving method provided in this embodiment includes: n groups of positioning information sent by the N Beidou communication cards are sequentially received, and the receiving time delay of the N groups of L positioning information is respectively calculated. Through the arrangement, a plurality of groups of positioning information can be received in time, so that the receiving efficiency is improved, and the receiving delay is effectively reduced.
Example 4
The present embodiment provides that the positioning information receiving apparatus 6 includes: the Beidou communication card comprises a receiving module and a time delay calculating module, wherein the receiving module is used for sequentially receiving N groups of positioning information sent by N Beidou communication cards, and each group of positioning information comprises L positioning information. The delay calculating module is used for respectively calculating the receiving delay of L pieces of positioning information in the N groups of positioning information. Meanwhile, the receiving time delay of the platform is increased from the original M seconds to the current M (L-1)/(N x L) seconds, and the monitoring real-time performance of the monitoring target is qualitatively improved.
In summary, the positioning information receiving apparatus 6 provided in this embodiment includes: the receiving module is used for sequentially receiving N groups of positioning information sent by N Beidou communication cards, wherein each group comprises L positioning information, the delay calculation module is used for calculating the receiving delay of the L positioning information in the N groups of positioning information respectively, the receiving device can timely receive a plurality of groups of positioning information in a period, and the positioning precision is further quantized by calculating the delay.
Example 5
Referring to fig. 4, the present embodiment provides a positioning information transmission system including: the core processor 4, the ground analysis device 7, the positioning information sending device 5 and the positioning information receiving device 6 are connected in sequence, and the core processor 4, the positioning information sending device 5, the positioning information receiving device 6 and the ground analysis device 7 are connected in sequence.
The core processor 4 is used for extracting positioning information from the received positioning data, and send the positioning information to the positioning information sending device 5, namely the core processor 4 extracts the positioning information according to the user requirement, the quantity of the extracted positioning information, the quantity of single positioning information is related to the formulation of a communication protocol, in the actual operation process, the RDSS radio frequency baseband module adopts progressive card distribution, adopts a plurality of Beidou communication cards with the same communication frequency, the progressive initialization sets the initial transmitting time of the communication cards, and then the extracted positioning information is reported according to the fixed communication frequency through the Beidou short message communication technology.
The positioning information sending device 5 is used for sending the positioning information to the positioning information receiving device 6, namely, the high-frequency Beidou/GPS positioning module realizes high-frequency Beidou/GPS positioning, and the positioning information sending device 5 sends the positioning information to the core processor 4 in real time.
The ground analysis device 7 is used for analyzing the positioning information received by the positioning information receiving device 6 according to a preset rule to obtain a positioning position, that is, the ground receiving device receives the short message by using the RDSS radio frequency baseband module, and a user can interpret the position information of the short message according to a communication protocol.
In addition, the positioning information transmission system further comprises a user terminal, wherein the user terminal is connected with the ground analysis device 7 and is used for receiving the positioning position sent by the ground analysis device 7 and displaying the positioning position. Common user terminals include displays, computers, mobile terminals, and the like.
In summary, the positioning information transmission system provided in this embodiment includes: the core processor 4, the ground analysis device 7, the positioning information sending device 5 and the positioning information receiving device 6 are connected in sequence, when the device works, the core processor 4 is used for extracting positioning information from received positioning data and sending the positioning information to the positioning information sending device 5, then the positioning information sending device 5 is used for sending the positioning information to the positioning information receiving device 6, therefore, the ground analysis device 7 analyzes the positioning information received by the positioning information receiving device 6 according to a preset rule to obtain a positioning position, and effective supervision of a moving target is achieved through a Beidou short message technology.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The method for sending the positioning information is characterized by comprising the following steps:
in a communication period, N Beidou communication cards respectively send a group of positioning information to an opposite terminal at different moments, wherein N is more than or equal to 2;
the N Beidou communication cards start to time sequentially by taking M/N seconds as a timing interval from the moment of electrifying, wherein the communication period of each Beidou communication card is M seconds;
setting the time of M + (M/N) ((N-1)) (N/(N L)) as the sampling starting point of the Nth group of the positioning information, wherein L is the number of the positioning information sent by each Beidou communication card;
setting the time of M/(N x L) as the sampling interval between the N groups of L positioning information;
and respectively collecting the L positioning information within M/N seconds before the sampling start point, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
2. A positioning information transmitting apparatus, comprising:
the positioning information sending module is used for sending a group of positioning information to the opposite terminal by the N Beidou communication cards at different moments in one communication period, wherein N is more than or equal to 2;
the timing module is used for sequentially starting timing the N Beidou communication cards by taking M/N seconds as a timing interval from the moment of electrifying, wherein the communication period of each Beidou communication card is M seconds;
a sampling starting point setting module, configured to set a moment of M + (M/N) × (N-1) × (M/(N × L)) as a sampling starting point of an nth set of positioning information, where L is the number of the positioning information sent by each beidou communication card;
a sampling interval setting module, configured to set M/(N × L) time as a sampling interval between the nth group of L positioning information;
and the positioning information sampling module is used for respectively collecting the L positioning information within M/N seconds before the sampling starting point, wherein the L positioning information of the Nth group is between the Nth communication period and the first sampling point of the Nth group.
3. A positioning information transmission system, comprising: a core processor, a ground resolution device, a positioning information transmitting device and a positioning information receiving device according to claim 2;
the core processor, the positioning information sending device, the positioning information receiving device and the ground analysis device are connected in sequence;
the core processor is used for extracting positioning information from the received positioning data and sending the positioning information to the positioning information sending device;
the positioning information sending device is used for sending the positioning information to the positioning information receiving device;
and the ground analysis device is used for analyzing the positioning information received by the positioning information receiving device according to a preset rule so as to obtain a positioning position.
4. The positioning information transmission system according to claim 3, further comprising a user terminal;
and the user terminal is connected with the ground analysis device and used for receiving the positioning position sent by the ground analysis device and displaying the positioning position.
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Inventor after: Li Yingcheng Inventor after: Dong Guohong Inventor after: Xue Yanli Inventor before: Li Yingcheng Inventor before: Dong Guohong |