CN105992154A - Position data transmission method and device and positioning system - Google Patents
Position data transmission method and device and positioning system Download PDFInfo
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- CN105992154A CN105992154A CN201510053465.8A CN201510053465A CN105992154A CN 105992154 A CN105992154 A CN 105992154A CN 201510053465 A CN201510053465 A CN 201510053465A CN 105992154 A CN105992154 A CN 105992154A
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Abstract
The present invention discloses a position data transmission method and device and a positioning system. The method comprises: obtaining position data from a positioning module according to a presetting frequency; performing preprocessing of data of a plurality of positions obtained in a presetting time quantum according to a presetting preprocessing rule and obtaining the preprocessing data; performing compression processing of the preprocessing data according to the presetting compression rule, and obtaining the compression data; and sending the compression data out through the message or data. According to the technical scheme, about a Beidou one-generation module which only can send message at one time in one minute and about a position data transmission device having limited message communication capacity for one time, the position data transmission method and device and the positioning system can expand the transmission quantity of the position data and can transmit finer position data to allow the sending position data to accurately reflect the driving locus of a target object.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of position data transmission method, device and location
System.
Background technology
Along with the development of logistic industry grows, logistics company needs to grasp in real time its affiliated haulage vehicle
Positional information.Existing targeting scheme is substantially and utilizes GPS (such as GPS or the Big Dipper two
For module) obtain the latitude and longitude information of vehicle, then will by the way of Big Dipper generation module sends message
The latitude and longitude information of vehicle is sent to Surveillance center, and is shown by GIS map.But a Big Dipper generation
Module message communication finite capacity, typically can only send a message in one minute, and a message comprises
Position data limited, typically not greater than 88byte, the position data causing Surveillance center to obtain can not be accurate
The driving trace of reflection vehicle.
Summary of the invention
The present invention provides a kind of position data transmission method, device and alignment system, how solves by one
Message or the problem of packet transmission more information amount.
For solve above-mentioned technical problem, the present invention by the following technical solutions:
A kind of position data transmission method, including: obtain position data according to predeterminated frequency from locating module；
According to default preprocessing rule, the multiple position datas got in preset time period are carried out pretreatment,
To preprocessed data；It is compressed processing to described preprocessed data according to default reduced rule, is pressed
Contracting data；Described compression data are sent by a message or packet.
In certain embodiments, according to the default preprocessing rule multiple positions to getting in preset time period
Put data and carry out pretreatment, obtain preprocessed data and include:
A position data in the multiple position datas that will get in described preset time period as benchmark,
Other each position datas of getting in calculating described preset time period and as the position data of benchmark between
Difference, using the described position data as benchmark and each difference of calculating as described preprocessed data；
Or, a position data in the multiple position datas that will get in described preset time period as
Benchmark, calculates described preset time period interior according to the difference obtained between the most adjacent two position datas of time-sequencing
Value, using the described position data as benchmark and each difference of calculating as described preprocessed data.
Preferably, the described position data as benchmark includes: get in described preset time period is first
Position data.
In certain embodiments, it is compressed processing to described preprocessed data according to default reduced rule,
Obtain compressed data packets to include: use Half-byte condensation algorithm to be compressed described preprocessed data processing,
To compression data.
In certain embodiments, described position data includes longitude data and latitude data.
In certain embodiments, according to the default preprocessing rule multiple positions to getting in preset time period
Put data and carry out pretreatment, obtain preprocessed data and also include: the first place of described longitude data is given up.
In certain embodiments, described predeterminated frequency includes: within every two seconds, obtain a position data；Described pre-
If the time period includes: 1 minute.
A kind of position data transmitting device, including: acquisition module, it is used for according to predeterminated frequency from locating module
Obtain position data；Pretreatment module, for according to default preprocessing rule to acquisition module when default
Between multiple position datas of getting in section carry out pretreatment, obtain preprocessed data；Compression module, is used for
The described preprocessed data obtained pretreatment module according to default reduced rule is compressed processing, and obtains
Compression data；And sending module, pass through a message for the described compression data obtained by compression module
Or packet sends.
In certain embodiments, pretreatment module includes:
First pretreatment submodule, in the multiple position datas that will get in described preset time period
One position data as benchmark, other each position datas got in calculating described preset time period with
As the difference between the position data of benchmark, the described position data as benchmark is each with calculate
Difference is as described preprocessed data；
And/or, the second pretreatment submodule, for the multiple positional numbers that will get in described preset time period
A position data according to, as benchmark, calculates described preset time period interior according to obtaining the every phase of time-sequencing
Difference between adjacent two position datas, using the described position data as benchmark and each difference calculated
As described preprocessed data.
In certain embodiments, compression module is used for using Half-byte condensation algorithm to enter described preprocessed data
Row compression processes, and obtains compressing data.
In certain embodiments, described position data includes longitude data and latitude data.
A kind of alignment system, including: locating module, for object is positioned；Above-mentioned positional number
According to transmitting device, for obtaining position data according to predeterminated frequency from locating module；According to default pretreatment
Rule carries out pretreatment to the multiple position datas got in preset time period, obtains preprocessed data；Press
It is compressed processing to described preprocessed data according to default reduced rule, obtains compressing data；By described pressure
Contracting data are sent by a message or packet；And position data reduction apparatus, it is used for receiving institute
State message or packet；According to default and suitable with described reduced rule decompression rule to described report
Compression data in literary composition, packet decompress, and restore described preprocessed data；According to default and
Described preprocessed data is resolved by the resolution rules suitable with described preprocessing rule, restores described
Multiple position datas.
In certain embodiments, described position data transmitting device includes: Big Dipper generation module.
In certain embodiments, this alignment system also includes at least one mobile communication module, for from location
Module obtains position data, then is transferred out by mobile communications network.
Position data transmission method, device and the alignment system that the present invention provides, will obtain in preset time period
To multiple position datas sent by a message or packet, and carry out before sending pretreatment and
Compression so that it is the data volume upper limit that a satisfied message or packet can be transmitted by, for Big Dipper generation module
A message, and the position data transmission dress of a message communication finite capacity can only be sent in this kind of one minute
For putting, it is possible to expand the transmission quantity of position data, it is possible to transmit finer position data so that it is send out
The position data sent can accurately reflect the driving trace of object.
Further, the alignment system that the present invention provides, have Big Dipper generation module and mobile communication module concurrently,
In the case of mobile communications network meets condition, preferential employing mobile communication module transmission of location information is to prison
Control center, in the case of mobile communications network is unsatisfactory for condition, uses Big Dipper generation module to send message
Mode transmission location data are to Surveillance center.Owing to using Big Dipper generation module transfer position data to have reliably
Property, use mobile communication module transmission location data to have real-time, therefore this alignment system has taken into account system
Reliability and real-time.
Accompanying drawing explanation
The flow chart of the position data transmission method that Fig. 1 provides for one embodiment of the invention；
The schematic diagram of the position data transmitting device that Fig. 2 provides for one embodiment of the invention；
The schematic diagram of the alignment system that Fig. 3 provides for one embodiment of the invention.
Detailed description of the invention
The present invention was the position data transmitting device of message communication finite capacity, such as Big Dipper generation module one minute
In can only send a message, and a message communication capacity is typically not greater than 88byte, it is provided that one can
Expand the transmission quantity of position data, the scheme of finer position data can be transmitted so that it is the position of transmission
Put data and can accurately reflect the driving trace of object.Accompanying drawing is combined to this below by detailed description of the invention
Invention is described in further detail.
The flow chart of the position data transmission method that Fig. 1 provides for one embodiment of the invention, refer to Fig. 1, bag
Include following flow process:
S101, obtain position data according to predeterminated frequency from locating module.
Locating module is including, but not limited to GPS, such as GPS or Beidou II module.
Object can be positioned by locating module in real time, or each second location is once, positions each time all
That understands obtains and records a position data.Preferably, position data includes longitude data and latitude data.
Based on the locating module location to object, step S101 obtains position according to predeterminated frequency from locating module
Putting data, this predeterminated frequency is less than the location frequency of locating module.With each second location of locating module once
As a example by, then this predeterminated frequency can be: within every two seconds, obtains a position data.
S102, according to default preprocessing rule, the multiple position datas got in preset time period are carried out
Pretreatment, obtains preprocessed data.
This preset time period can be 1 minute, the whole positions i.e. got step S101 in a minute
Data carry out pretreatment, obtain preprocessed data.
The multiple position datas got in preset time period can be simplified by this step, the pre-place obtained
Reason data can reflect the plurality of position data, but data volume is less than the plurality of position data.The specifically side of simplification
Formula is including, but not limited to act set forth below:
A position data in the multiple position datas that will get in this preset time period is as benchmark, meter
Other each position datas of getting in calculating this preset time period and as the difference between the position data of benchmark
Value, using this as the position data of benchmark and each difference of calculating as this preprocessed data.Or,
A position data in the multiple position datas that will get in this preset time period is as benchmark, and calculating should
According to the difference obtained between the most adjacent two position datas of time-sequencing in preset time period, using this as base
Accurate position data and each difference calculated are as this preprocessed data.In both modes, as base
Accurate position data can be any one in the multiple position datas got in this preset time period, preferably
, for the first position data got in this preset time period.If position data includes longitude data and latitude
Degrees of data, carries out above-mentioned pretreatment respectively, can be greatly simplified data volume longitude data, latitude data.
If it addition, position data includes that longitude data and latitude data, default process can also include:
Longitude data, latitude data are accurate to 2 significant digits, to simplify data volume；
The first place of longitude data is given up, owing to latitude data is in the range of 0 ° to 90 °, longitude data
Scope is 0 ° to 180 °, and the service area of locating module is commonly known, it is possible to will be through the number of degrees
According to first place give up, just understand its first data according to the service area of locating module.So latitude data,
The most only two are retained before the arithmetic point of longitude data.
S103, it is compressed described preprocessed data processing according to default reduced rule, obtains compressing number
According to.
The reduced rule preset includes multiple, is not limited to Half-byte condensation algorithm.
S104, these compression data are sent by a message or packet.
The present embodiment carries out pretreatment to the multiple position datas got in preset time period, obtains data volume
Preprocessed data after simplification, then be compressed preprocessed data processing, simplify data volume further, make
The data volume upper limit that it meets a message or packet can transmit, finally by a message or packet
Send, for comparing existing data transmission scheme, it is possible to transmit finer position data, make
Its position data sent can accurately reflect the driving trace of object.
The present invention also provides for a kind of position data transmitting device, as in figure 2 it is shown, this position data transmitting device 2
Including acquisition module 21, pretreatment module 22, compression module 23 and sending module 24, wherein:
Acquisition module 21 is for obtaining position data according to predeterminated frequency from locating module；Preferably, frequency is preset
Rate includes: within every two seconds, obtain a position data；Preferably, position data includes longitude data and latitude number
According to.
Pretreatment module 22 for according to default preprocessing rule to acquisition module 21 in preset time period
The multiple position datas got carry out pretreatment, obtain preprocessed data；Preferably, preset time period bag
Include: 1 minute.
Compression module 23 is for the preprocessed data obtained pretreatment module 22 according to default reduced rule
It is compressed processing, obtains compressing data.
Sending module 24 is sent out by a message or packet for the compression data obtained by compression module 23
See off.
In certain embodiments, one or more during pretreatment module 22 includes following submodule:
First pretreatment submodule, in the multiple position datas that will get in this preset time period
Individual position data is as benchmark, other each position data and the conducts got in calculating this preset time period
Difference between the position data of benchmark, makees this as the position data of benchmark and each difference calculated
For this preprocessed data；Preferably, this includes as the position data of benchmark: obtain in this preset time period
The first position data arrived；
Second pretreatment submodule, in the multiple position datas that will get in this preset time period
Individual position data, as benchmark, calculates this preset time period interior according to obtaining the most adjacent two positions of time-sequencing
Difference between data, using this as the position data of benchmark and each difference of calculating as described pre-place
Reason data；Preferably, this includes as the position data of benchmark: get in this preset time period is first
Position data；
3rd pretreatment submodule, for being accurate to decimal by the longitude data in position data, latitude data
After Dian two.
4th pretreatment submodule, for giving up the first place of the longitude data in position data.
Compression module 23 is used for using Half-byte condensation algorithm to be compressed above-mentioned preprocessed data processing,
To compression data.
The present invention also provides for a kind of alignment system, including: locating module, for object is positioned；
Above-mentioned position data transmitting device, for obtaining position data according to predeterminated frequency from locating module；According in advance
If preprocessing rule the multiple position datas got in preset time period are carried out pretreatment, obtain pre-place
Reason data；It is compressed processing to described preprocessed data according to default reduced rule, obtains compressing data；
Described compression data are sent by a message or packet；And position data reduction apparatus, use
In the message or the packet that receive the transmission of described position data transmitting device；According to default and with described compression
Compression data in described message, packet are decompressed by the regular suitable rule that decompresses, reduction
Go out described preprocessed data；According to default and suitable with described preprocessing rule resolution rules to institute
State preprocessed data to resolve, restore the plurality of position data.
Locating module is including, but not limited to GPS, such as GPS or Beidou II module.
Object can be positioned by locating module in real time, or each second location is once, positions each time all
That understands obtains and records a position data.Preferably, position data includes longitude data and latitude data.
Position data transmitting device transmits dress including, but not limited to the position data of message communication finite capacity
Put, such as Big Dipper generation module.
Position data reduction apparatus is including, but not limited to Surveillance center, terminal etc..Position data reduction apparatus
Resolution rules may include that
Read position data, the station location marker of difference as benchmark in message or packet, according to read
Station location marker, identifies the position data as benchmark, each difference；This station location marker can with preset in place
Put in data recovery device, or carry in message, packet；This station location marker can allow position data
Reduction apparatus knows that in the preprocessed data after decompressing reduction, which byte representation is as the position of benchmark
Data, one difference of which byte representation, another difference of which byte representation.Resolution rules also may be used
To include: read the first position data mark as benchmark, this mark is for being denoted as the position of benchmark
Data are the first position data got in described preset time period, and position data reduction apparatus reads this
After mark, the computation rule that coupling is corresponding, go out other according to this first position data and each mathematic interpolation each
Individual position data.
Resolution rules can also include: read omit mark, omit mark for represent by longitude data,
Latitude data, difference are accurate to 2 significant digits.It is the most original-pack that this station location marker can be preset at position data
In putting, or carry in message, packet；
Resolution rules can also include: reads first place and gives up mark, and mark is given up for represent will be through in first place
The first place of degrees of data is given up.This first place is given up mark and can be preset in position data reduction apparatus, or
Message, packet carry；After position data reduction apparatus reads this mark, this warp of acquisition can be inquired about
The service area of the locating module of degrees of data, carrys out wadding warp degrees of data according to the service area of this locating module
The first.
In certain embodiments, this alignment system also includes at least one mobile communication module, for from location
Module obtains position data, then is transferred out by mobile communications network.Have Big Dipper generation module and movement concurrently
The alignment system of communication module, has the reliability of Big Dipper generation module, and the real-time of mobile communication module concurrently.
Below as a example by positioning vehicle, alignment system as described in Figure 3, including as locating module
GPS module and Beidou II module, as a Big Dipper generation for position data transmitting device, also include 2G mould
Block and 3G module, GPS module and Beidou II module, for positioning vehicle, preferentially use GPS mould
The position data that block navigates to；2G module, 3G module and Big Dipper generation module are for being sent to position data
Surveillance center, in the environment of having 2G, 3G network, preferential employing 2G module, 3G module transfer positional number
According to, in the environment of there is no 2G, 3G network, use Big Dipper generation module transfer position data；Assume GPS
Module each second carries out one-time positioning to vehicle, and one position data of output in the most each second, including the warp of vehicle
Degrees of data and latitude data, will have 60 position datas to need to send, and Big Dipper generation module will be every in one minute
Minute can only send a message, and each message to do the data volume upper limit transmitted be 88byte.Use this
The design of invention, Big Dipper generation module can carry out transmission location data in such a way to Surveillance center:
Big Dipper generation module extracts a position data from GPS module or Beidou II module in every 2 seconds, it is assumed that
The maximum travelling speed of vehicle is 120km/h, i.e. 34m/s, in the service area of Big Dipper generation module, and 34m
Corresponding maximum longitude and latitude span by the north latitude 5 ° in equator at, for (34/ (2* ∏
* R*sin5)) * 360 °=0.42 ', wherein R is earth radius, and correspondingly, in 2s, vehicle strides across
Big longitude and latitude is 0.84 '；And 0.01 ' corresponding ultimate range span is at north latitude 55 °, for (0.01/
(360*60)) R*sin55 °=15m of * 2* ∏ *, GPS module positioning precision in the case of not auxiliary is usual
At about 10m, it is seen that Big Dipper generation module extracts a position from GPS module or Beidou II module in every 2 seconds
Put data, it is possible to ensure close with GPS positioning precision, within the acceptable range.
According to extraction in 2 seconds frequency once, Big Dipper generation module can be from GPS module or north in one minute
The secondary module that struggles against extracts 30 position datas (including 30 longitude datas and 30 latitude data), extracts
After these 30 position datas complete, need to process according to following preprocessing rule and reduced rule:
Using the first position data (referring to positioning time the most front) in these 30 position datas as base
Standard, calculates the difference between other 29 position datas and this first position datas；To this head as benchmark
First longitude data, first latitude data in individual position data are all accurate to 2 significant digits, and it is from little
The 3rd after several points starts to give up, and, the first place of this first longitude data is given up, like this,
This first position data has only to 12 bytes, and the most first longitude data, first latitude data are required to 6
Byte；The most first latitude data is 39 ° 58.3032 ', first longitude data is 116 ° 29.6046 ',
Be accurate to 2 significant digits, and given up the first place of first longitude data, then this first latitude data is 39 °
58.30, this first longitude data is 16 ° 29.60, all has only to 6 bytes, then uses Half-byte condensation
All having only to 3 bytes after compression algorithm, this first position data needs altogether 6 bytes；For each
Difference, is all accurate to 2 significant digits, and the most each difference all has only to 2 bytes, then uses half-word
After joint compression algorithm compression, each difference only has 1 byte, and the difference between first longitude data and head
Difference between individual latitude data comes to 29*2=58, and therefore, difference needs altogether 58 bytes；?
After be transferred to Surveillance center be through above pretreatment and compression after this first position data and each difference
Value, the byte number needed altogether is: 6+58=64, the volume of transmitted data higher limit for a message is 88
For the Big Dipper generation module of byte, a message also has the surplus of 24 bytes, may be used for transmitting other
Data.
The host-host protocol of Big Dipper generation module is as shown in Table 1:
Table one
Surveillance center conciliates reduced rule according to preset resolution rules and reduces: according to decompressing, rule is right
The message received obtains, after decompressing, the pre-place that Big Dipper generation module obtains according to preprocessing rule pretreatment
Reason data (the first position data of 12 bytes and the difference of 116 bytes), reads the work carried in message
On the basis of the station location marker of position data, the station location marker of difference, first position data is as the mark of benchmark
Know, the first position data as benchmark, each can be identified from preprocessed data according to these marks
Individual difference, goes out other each position datas further according to this first position data and each mathematic interpolation；Read and save
Slightly identify, check the longitude data of each position data, whether latitude data is accurate to 2 significant digits；
Reading first place and give up mark, inquiry obtains the service area of the locating module of each longitude data, according to this location
The service area of module fills the first place of each longitude data, the most just can restore and be accurate to after arithmetic point two
30 position datas (including longitude data and latitude data) of position.
The mode that the present embodiment uses mobile communication module to combine Big Dipper generation module makes alignment system spacing real
Time property and reliability；And for the Big Dipper generation module communication frequency and the limited problem of communication length, according to
The feature of position data and the service area of Big Dipper generation module, carry out presetting process, devise novel biography
Transmission protocol, it is achieved that at least transmit 30 position datas in a message, in acceptable accuracy rating
Inside reduce the quasi real time driving trace of vehicle.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.Ordinary skill people for the technical field of the invention
For Yuan, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all
Protection scope of the present invention should be considered as belonging to.
Claims (14)
1. a position data transmission method, it is characterised in that including:
Position data is obtained from locating module according to predeterminated frequency；
According to default preprocessing rule, the multiple position datas got in preset time period are carried out pre-place
Reason, obtains preprocessed data；
It is compressed processing to described preprocessed data according to default reduced rule, obtains compressing data；
Described compression data are sent by a message or packet.
2. position data transmission method as claimed in claim 1, it is characterised in that according to default
Preprocessing rule carries out pretreatment to the multiple position datas got in preset time period, obtains pretreatment number
According to including:
A position data in the multiple position datas that will get in described preset time period as benchmark,
Other each position datas of getting in calculating described preset time period and as the position data of benchmark between
Difference, using the described position data as benchmark and each difference of calculating as described preprocessed data；
Or, a position data in the multiple position datas that will get in described preset time period as
Benchmark, calculates described preset time period interior according to the difference obtained between the most adjacent two position datas of time-sequencing
Value, using the described position data as benchmark and each difference of calculating as described preprocessed data.
3. position data transmission method as claimed in claim 2, it is characterised in that described as base
Accurate position data includes: the first position data got in described preset time period.
4. position data transmission method as claimed in claim 2, it is characterised in that according to default
Described preprocessed data is compressed processing by reduced rule, obtains compressed data packets and includes: use nibble pressure
Described preprocessed data is compressed processing by compression algorithm, obtains compressing data.
5. the position data transmission method as described in any one of Claims 1-4, it is characterised in that
Described position data includes longitude data and latitude data.
6. position data transmission method as claimed in claim 5, it is characterised in that according to default
Preprocessing rule carries out pretreatment to the multiple position datas got in preset time period, obtains pretreatment number
According to also including: the first place of described longitude data is given up.
7. position data transmission method as claimed in claim 5, it is characterised in that described default frequency
Rate includes: within every two seconds, obtain a position data；Described preset time period includes: 1 minute.
8. a position data transmitting device, it is characterised in that including:
Acquisition module, for obtaining position data according to predeterminated frequency from locating module；
Pretreatment module, for obtaining acquisition module according to default preprocessing rule in preset time period
To multiple position datas carry out pretreatment, obtain preprocessed data；
Compression module, for the described preprocessed data obtained pretreatment module according to default reduced rule
It is compressed processing, obtains compressing data；
Sending module, is sent out by a message or packet for the described compression data obtained by compression module
See off.
9. position data transmitting device as claimed in claim 8, it is characterised in that pretreatment module
Including:
First pretreatment submodule, in the multiple position datas that will get in described preset time period
One position data as benchmark, other each position datas got in calculating described preset time period with
As the difference between the position data of benchmark, the described position data as benchmark is each with calculate
Difference is as described preprocessed data；
And/or, the second pretreatment submodule, for the multiple positional numbers that will get in described preset time period
A position data according to, as benchmark, calculates described preset time period interior according to obtaining the every phase of time-sequencing
Difference between adjacent two position datas, using the described position data as benchmark and each difference calculated
As described preprocessed data.
10. position data transmitting device as claimed in claim 9, it is characterised in that compression module is used
Process in using Half-byte condensation algorithm that described preprocessed data is compressed, obtain compressing data.
The 11. position data transmitting devices as described in any one of claim 8 to 10, it is characterised in that
Described position data includes longitude data and latitude data.
12. 1 kinds of alignment systems, it is characterised in that including:
Locating module, for positioning object；
Position data transmitting device as described in any one of claim 8 to 11, for according to predeterminated frequency from
Locating module obtains position data；Multiple to get in preset time period according to default preprocessing rule
Position data carries out pretreatment, obtains preprocessed data；According to default reduced rule to described pretreatment number
According to being compressed process, obtain compressing data；Described compression data are sent by a message or packet
Go out；
Position data reduction apparatus, is used for receiving described message or packet；According to default and with described pressure
What contraction ga(u)ge was the most suitable decompresses regular decompression the compression data in described message, packet, also
Former go out described preprocessed data；According to default and suitable with described preprocessing rule resolution rules to institute
State preprocessed data to resolve, restore the plurality of position data.
13. alignment systems as claimed in claim 12, it is characterised in that described position data is transmitted
Device includes: Big Dipper generation module.
14. alignment systems as described in any one of claim 12 or 13, it is characterised in that also include
At least one mobile communication module, for obtaining position data from locating module, then passes through mobile communications network
Transfer out.
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| CN107040525A (en) * | 2017-03-23 | 2017-08-11 | 上海保橙网络科技有限公司 | One kind uses gps data compression and its data transmission method |
| CN107147436A (en) * | 2017-05-19 | 2017-09-08 | 山东顺国电子科技有限公司 | Movement locus querying method, device and user terminal |
| CN108566426A (en) * | 2018-04-13 | 2018-09-21 | 南京粒聚智能科技有限公司 | A kind of GPS data processing method of terminal and system interaction |
| CN109698718A (en) * | 2018-12-28 | 2019-04-30 | 中国电子科技集团公司第五十四研究所 | A kind of navigation path data sending method based on dipper system |
| CN109856651A (en) * | 2019-03-13 | 2019-06-07 | 广东海聊科技有限公司 | A kind of position data compression method and system based on dipper system |
| CN113676834A (en) * | 2021-08-25 | 2021-11-19 | 广东几米星联通讯有限公司 | Processing method, positioning device and communication method of Beidou communication positioning information |
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| CN109698718A (en) * | 2018-12-28 | 2019-04-30 | 中国电子科技集团公司第五十四研究所 | A kind of navigation path data sending method based on dipper system |
| CN109856651A (en) * | 2019-03-13 | 2019-06-07 | 广东海聊科技有限公司 | A kind of position data compression method and system based on dipper system |
| CN113676834A (en) * | 2021-08-25 | 2021-11-19 | 广东几米星联通讯有限公司 | Processing method, positioning device and communication method of Beidou communication positioning information |
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