CN103399331A - Real-time positioning method and device for logistics vehicles - Google Patents
Real-time positioning method and device for logistics vehicles Download PDFInfo
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- CN103399331A CN103399331A CN2013103068641A CN201310306864A CN103399331A CN 103399331 A CN103399331 A CN 103399331A CN 2013103068641 A CN2013103068641 A CN 2013103068641A CN 201310306864 A CN201310306864 A CN 201310306864A CN 103399331 A CN103399331 A CN 103399331A
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Abstract
The invention provides a real-time positioning method and device for logistics vehicles, and relates to the technical field of logistics. The method and device are invented to solve the problem that in the prior art, the precision and safety are poor. The technical scheme disclosed by the embodiment of the invention comprises the following steps: obtaining Beidou/GPS (Global Positioning System) navigation data; obtaining positioning data of the logistics vehicles according to the Beidou/GPS navigation data; and displaying the positioning data on a predetermined GIS (Geographic Information System) digital map. The scheme can be applied to logistics systems.
Description
Technical field
The present invention relates to the logistlcs technology field, refer to especially a kind of logistics vehicles real-time location method and device.
Background technology
Computer World Information (CCW Research) investigation result shows: by the cordless communication network technology, the vehicle-mounted information service that provides navigation, communication, safe rescue, information consultation, amusement etc. for user industrial chain has abroad had 13 years history, reach the production value of 60,000,000,000 dollars, quite ripe.
That traditional physical distribution monitoring system mostly is based on the global position system GPS of the U.S. and the technology such as the information transmission system such as GSM or GPRS and structure, system can realize visual on map of GPS locating information, can realize that logistics vehicles transports the in transit visual of process, facilitated logistics vehicles has been carried out to science scheduling and effectively management, thereby can reduce the operation cost of loglstics enterprise.
Based on the supervisory system complicated structure of GPS/GIS, topmost shortcoming is the restriction that it will be subject to the foreign GPS technology, and accuracy and the security of system had to certain restriction.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of logistics vehicles real-time location method and device, can improve accuracy and security.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of logistics vehicles real-time location method, comprising: obtain the Big Dipper/GPS navigation data; Locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles; On default GIS numerical map, show described locator data.
On the other hand, provide a kind of logistics vehicles real-time positioning apparatus, comprising:
Anneta module;
The Big Dipper/GPS transceiver module, be connected with described Anneta module, be used to obtaining the Big Dipper/GPS navigation data;
Serial communication modular, be connected with the described Big Dipper/GPS transceiver module, for the locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles;
The GIS map display module, be connected with described serial communication modular, on the GIS numerical map default, showing described locator data.
The beneficial effect of technique scheme of the present invention is as follows: by obtaining the Big Dipper/GPS navigation data, and on the GIS numerical map, show after therefrom obtaining the locator data of logistics vehicles, thereby the real-time location of realizing logistics vehicles is visual, improved accuracy and the security of physical distribution monitoring system, made logistics transport transparence more.The technical scheme that the embodiment of the present invention provides has solved the restriction that prior art is subject to the foreign GPS technology, the problem that accuracy and the security of system had to certain restriction.
The accompanying drawing explanation
The process flow diagram of the logistics vehicles real-time location method that Fig. 1 provides for the embodiment of the present invention one;
Fig. 2 is the process flow diagram that in logistics vehicles real-time location method shown in Figure 1, serial communication receives data;
The structural representation one of the logistics vehicles real-time positioning apparatus that Fig. 3 provides for the embodiment of the present invention two;
The structural representation two of the logistics vehicles real-time positioning apparatus that Fig. 4 provides for the embodiment of the present invention two;
The structural representation three of the logistics vehicles real-time positioning apparatus that Fig. 5 provides for the embodiment of the present invention two;
Fig. 6 is the process flow diagram of design GIS module in logistics vehicles real-time positioning apparatus shown in Figure 3;
Fig. 7 is the structural representation of the Big Dipper/GPS transceiver module in logistics vehicles real-time positioning apparatus shown in Figure 3;
Fig. 8 is the structural representation of serial communication modular in logistics vehicles real-time positioning apparatus shown in Figure 3.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to existing physical distribution monitoring system accuracy and the poor problem of security, a kind of logistics vehicles real-time location method and device are provided.
Embodiment mono-:
As shown in Figure 1, the logistics vehicles real-time location method that embodiments of the invention provide comprises:
Step 101, obtain the Big Dipper/GPS navigation data.
Beidou satellite navigation system is the GPS (Global Position System) of China's independent development, with the GPS GPS, compare, it is advantageous that short message communication function and the active location of Beidou satellite navigation system, can realize that uplink and downlink communicate by letter simultaneously, be convenient to the timely feedback information of logistics vehicles.
In the present embodiment, the Big Dipper/obtaining by serial ports of GPS navigation data realized, Beidou receiver to be connected with the PC serial ports, and Beidou receiver is in running order, receiver will constantly be sent to the Big Dipper locator data that receives in PC by serial ports, and the data of then by the serial communication function, serial ports being sent receive.The implementation procedure of serial communication reception data as shown in Figure 2.
In the present embodiment, the process of obtaining the Big Dipper/GPS navigation data by step 101 comprises: at first open serial ports, and configure the parameter of described serial ports; While then in described serial ports, data receiver being arranged, trigger data reception event receives the described Big Dipper/GPS navigation data automatically.Wherein, the parameter of serial ports can comprise: string slogan, baud rate, data bit, position of rest and check bit etc.; 8,1, nothing because the default baud rate of Big Dipper receiving chip of design is 9600bps, so baud rate is made as 9600bps, and data bit, position of rest and check bit are respectively:.
Step 102, according to the locator data of this Big Dipper/GPS navigation data acquisition logistics vehicles.
In the present embodiment, can realize obtaining of the Big Dipper/GPS navigation data by serial ports, and the obtaining of the locator data of logistics vehicles.Wherein, the data frame structure of the Big Dipper/GPS navigation data is kept the NEMA-0183 agreement of the U.S., the NEMA-0183 agreement is the standard that American National ocean Institution of Electronics formulates for unified ocean navigation specification, this format standard has become international a kind of form, the content of agreement is on the basis of compatible NMEA-0180 and NMEA-0182, increase plurality of devices interface and the communications protocol definition such as GPS, sounder, compass bearing system, also allowed simultaneously some particular vendor to make agreement by oneself to its devices communicating.
The Big Dipper/GPS navigation data have multiple locating information output statement, comprise several data frame formats such as $ BDGGA, $ BDGLL, $ BDGSA, $ BDGSV, $ BDRMC, and each field of each frame format represents different implications.
In the present embodiment, while obtaining the Big Dipper/GPS navigation data, can receive the Frame of a lot of forms, need us to the locator data of needs, to cut apart extraction.Below with to $ BDGLL(geography information) Frame analysis is extracted as example and describes, and other Frames analyzed to the process of extraction, similar with process, this is no longer going to repeat them.
In the present embodiment, by the locator data of step 102 according to the described Big Dipper/GPS navigation data acquisition logistics vehicles, comprising: each frame of the described Big Dipper/GPS navigation data is split; Search the frame head of each frame, obtain the target data frame; Described target data frame is analyzed, from the locator data of extract flow vehicle described target data frame.
Because each frame of NEMA-0183 agreement is all with carriage return character (CR) and newline<LF > finish, be r n, heuristicimal code is 0D0A, can accordingly each frame of the data of serial ports reception buffer zone be split, then search the frame head of each frame, find and need the Frame of analyzing and it is analyzed; Each parameter in Frame separates with ", ", so can then it be extracted according to the position of searching to find corresponding different parameters of ", ", can obtain the locator data that needs, as longitude, latitude and positioning time etc.
Step 103, show this locator data on default GIS numerical map.
In the present embodiment, the Presentation Function of default GIS numerical map can be developed by the VC++6.0 platform on PC, utilize MapX GIS control to complete the exploitation to loaded and displayed and the basic operational functions of numerical map, native system is realized by introducing the MapX5.0 control, therefore before exploitation, is needed to install on computers the MapX5.0 control.System development mainly realizes by following step:
1) by application framework, generate guide and create the application project of the MFC based on a single document MapXDemo.Wherein, can generate guide by the application framework under the VC++6.0 environment and create, also can create by other guides, this is not restricted.
2) MAPX.H and MAPX.CPP file copy are arrived under described MapXDemo catalogue, and described MAPX.H and MAPX.CPP file are added in described MFC application project MapXDemo.Wherein, MAPX.H and MAPX.CPP file generally be stored under the MapX5.0 installation directory " MapInfo MapX5.0 Samples50 C++ Cpp " under file; Described MAPX.H and MAPX.CPP file are added in described MFC application project MapXDemo, can pass through " Project-> Add To Project-> Files " the step realization.
This step is in engineering, to add the MapX control.
3) header file that adds resource ID and MapX control is quoted, and statement CMapX categorical variable, use the Creat method in MapX, when the drawing class is initialized, creates the MapX control.
This step is dynamic creation MapX control in the Doc/View class, and this MapX control is a window control.
4) original state of described MapX control is set, added the event response of described MapX control.
The beneficial effect of technique scheme of the present invention is as follows: by obtaining the Big Dipper/GPS navigation data, and on the GIS numerical map, show after therefrom obtaining the locator data of logistics vehicles, thereby the real-time location of realizing logistics vehicles is visual, improved accuracy and the security of physical distribution monitoring system, made logistics transport transparence more.The technical scheme that the embodiment of the present invention provides has solved the restriction that prior art is subject to the foreign GPS technology, the problem that accuracy and the security of system had to certain restriction.
Embodiment bis-:
As shown in Figure 3, the logistics vehicles real-time positioning apparatus that the embodiment of the present invention provides comprises:
Anneta module 301;
The Big Dipper/GPS transceiver module 302, be connected with described Anneta module, be used to obtaining the Big Dipper/GPS navigation data;
Serial communication modular 303, be connected with the described Big Dipper/GPS transceiver module, for the locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles;
GIS map display module 304, be connected with described serial communication modular, on the GIS numerical map default, showing described locator data.
In the present embodiment, by Anneta module 301, the Big Dipper/GPS transceiver module 302, serial communication modular 303 and GIS map display module 304, realize the in real time process of location of logistics vehicles, to the embodiment of the present invention one provide similar, this is no longer going to repeat them.
In the present embodiment, system construction drawing as shown in Figure 4, is comprised of receiving trap 402, Serial Port Line 403 and the display device 404 of antenna 401, the built-in Big Dipper/GPS transceiver module.Wherein, the built-in Big Dipper/GPS transceiver module is BD2/GPS dual system navigation/time service module, and this module is dual system high-performance Big Dipper module, can support simultaneously BD2B1, two frequencies of GPS L1; Receiving trap 402 adopts the SMT pad, is particularly useful for low cost, low-power consumption field.
Further, as shown in Figure 5, this device can also comprise:
Engineering creation module 305, create the application project of the MFC based on a single document MapXDemo for by application framework, generating guide;
Control adds module 306, for MAPX.H and MAPX.CPP file copy are arrived under described MapXDemo catalogue, and described MAPX.H and MAPX.CPP file is added in described MFC application project MapXDemo;
Part creation module 307, quote be used to the header file that adds resource ID and MapX control, and statement CMapX categorical variable, use the Creat method in MapX, when the drawing class is initialized, creates the MapX control;
Initialization module 308, set for the original state to described MapX control, adds the event response of described MapX control.
In the present embodiment, the process flow diagram that adopts MapX ActiveX Techniques design GIS module on the VC platform as shown in Figure 6.MapX is the programmable component based on ActiveX that MapInfo company provides, and it can be integrated in the exploitation of Application standard visual programming tools easily, supports map function is added in any application.Concrete implementation process is as follows:
A, at first create map object, then by the Create function, create the view area that shows map;
B, by the SetGeoSet function, load the gst map of a certain access path;
C, by the tool master function that MapX provides, use the instrument of MapX to realize the basic operation to map, as the amplification of map, the control dwindling, roam and scheme layer etc.;
D, complete the operation to map.
Further, as shown in Figure 7, the Big Dipper in the present embodiment/GPS transceiver module 302 comprises:
Serial ports configuration submodule 3021, be used to opening serial ports, and configure the parameter of described serial ports;
Receive submodule 3022, while for described serial ports, data receiver being arranged, trigger data reception event receives the described Big Dipper/GPS navigation data automatically.
In the present embodiment, the Big Dipper/GPS transceiver module 302 realizes that the code of data receiver is as follows:
Further, as shown in Figure 8, in the present embodiment, serial communication modular 303, comprising:
Frame is cut apart submodule 3031, for each frame by the described Big Dipper/GPS navigation data, splits;
Frame is searched submodule 3032, be used to searching the frame head of each frame, obtains the target data frame;
Locator module 3033, for described target data frame is analyzed, from the locator data of extract flow vehicle described target data frame.
In the present embodiment, the sample data frame after extraction is as $ BDGLL, 3959.510178, N, and 11620.991398, E, 102332.000, A, A*42, wherein GLL is heading; 3959.510178 be latitude; N represents the Northern Hemisphere; 11620.991398 be longitude; E represents the Eastern hemisphere; 102332.000 expression UTC coordinate; A is positioning states, and expression is located successfully; Last field is check bit.Then this Frame is extracted, the main code of extraction is as follows:
In the present embodiment, only have the locator data data that will extract to be presented on electronic chart and could from map, observe intuitively the particular location of logistics vehicles.Because electronic chart has latitude and longitude information, therefore the longitude and latitude that the longitude and latitude in the locator data that will extract is tied on electronic chart can be realized, at first need to add for map the temporary layers that a user uses, then in temporary layers, in the longitude and latitude position of extracting, add the bitmap that will show and get final product, native system represents the particular location of vehicle at electronic chart with the shape of dolly.
The beneficial effect of technique scheme of the present invention is as follows: by obtaining the Big Dipper/GPS navigation data, and on the GIS numerical map, show after therefrom obtaining the locator data of logistics vehicles, thereby the real-time location of realizing logistics vehicles is visual, improved accuracy and the security of physical distribution monitoring system, made logistics transport transparence more.The technical scheme that the embodiment of the present invention provides has solved the restriction that prior art is subject to the foreign GPS technology, the problem that accuracy and the security of system had to certain restriction.
Logistics vehicles real-time location method and device that the embodiment of the present invention provides, can be applied in logistics system.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a logistics vehicles real-time location method, is characterized in that, comprising:
Obtain the Big Dipper/GPS navigation data;
Locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles;
On default GIS numerical map, show described locator data.
2. logistics vehicles real-time location method according to claim 1, is characterized in that, described before on default GIS numerical map, showing described locator data, described method also comprises:
By application framework, generate guide and create the application project of the MFC based on a single document MapXDemo;
MAPX.H and MAPX.CPP file copy are arrived under described MapXDemo catalogue, and described MAPX.H and MAPX.CPP file are added in described MFC application project MapXDemo;
Add the header file of resource ID and MapX control and quote, statement CMapX categorical variable, use the Creat method in MapX, when the drawing class is initialized, creates the MapX control;
Original state to described MapX control is set, and adds the event response of described MapX control.
3. logistics vehicles real-time location method according to claim 1, is characterized in that, the described Big Dipper/GPS navigation data of obtaining comprise:
Open serial ports, and configure the parameter of described serial ports;
While in described serial ports, data receiver being arranged, trigger data reception event receives the described Big Dipper/GPS navigation data automatically.
4. logistics vehicles real-time location method according to claim 1, is characterized in that, described locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles comprises:
Each frame of the described Big Dipper/GPS navigation data is split;
Search the frame head of each frame, obtain the target data frame;
Described target data frame is analyzed, from the locator data of extract flow vehicle described target data frame.
5. a logistics vehicles real-time positioning apparatus, is characterized in that, comprising:
Anneta module;
The Big Dipper/GPS transceiver module, be connected with described Anneta module, be used to obtaining the Big Dipper/GPS navigation data;
Serial communication modular, be connected with the described Big Dipper/GPS transceiver module, for the locator data according to the described Big Dipper/GPS navigation data acquisition logistics vehicles;
The GIS map display module, be connected with described serial communication modular, on the GIS numerical map default, showing described locator data.
6. logistics vehicles real-time positioning apparatus according to claim 5, is characterized in that, described device also comprises:
The engineering creation module, create the application project of the MFC based on a single document MapXDemo for by application framework, generating guide;
Control adds module, for MAPX.H and MAPX.CPP file copy are arrived under described MapXDemo catalogue, and described MAPX.H and MAPX.CPP file is added in described MFC application project MapXDemo;
The control creation module, quote be used to the header file that adds resource ID and MapX control, and statement CMapX categorical variable, use the Creat method in MapX, when the drawing class is initialized, creates the MapX control;
Initialization module, set for the original state to described MapX control, adds the event response of described MapX control.
7. logistics vehicles real-time positioning apparatus according to claim 5, is characterized in that, the described Big Dipper/GPS transceiver module comprises:
Serial ports configuration submodule, be used to opening serial ports, and configure the parameter of described serial ports;
Receive submodule, while for described serial ports, data receiver being arranged, trigger data reception event receives the described Big Dipper/GPS navigation data automatically.
8. logistics vehicles real-time positioning apparatus according to claim 5, is characterized in that, described serial communication modular comprises:
Frame is cut apart submodule, for each frame by the described Big Dipper/GPS navigation data, splits;
Frame is searched submodule, be used to searching the frame head of each frame, obtains the target data frame;
The locator module, for described target data frame is analyzed, from the locator data of extract flow vehicle described target data frame.
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Cited By (5)
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Application publication date: 20131120 |