CN203482399U - Single-base-station central-differential-position service system - Google Patents
Single-base-station central-differential-position service system Download PDFInfo
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- CN203482399U CN203482399U CN201320606590.3U CN201320606590U CN203482399U CN 203482399 U CN203482399 U CN 203482399U CN 201320606590 U CN201320606590 U CN 201320606590U CN 203482399 U CN203482399 U CN 203482399U
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Abstract
The utility model discloses a single-base-station central-differential-position service system which mainly settles the following problems in the prior art: higher application cost of a position-based service system, and high difficulty in popularization. The single-base-station central-differential-position service system comprises a central server, a base station and a mobile station which are connected with the central server through communication link. Through the technical solution provided by the utility model, the single-base-station central-differential-position service system has the following advantages: relatively high cost performance, easy maintenance, high suitability for large-scale popularization, higher practical value and higher popularization value.
Description
Technical field
The utility model relates to a kind of real-time dynamic position service system, specifically, relates to the central differential position service system in a kind of single base station.
Background technology
As everyone knows, through constantly development and innovation, CORS and network RTK location technology have been widely used in location-based service system, as deformation monitoring, topographic survey, construction lofting and cadastration etc.But, during for the application of monitoring position aspect and compared with multi-user's application, conventional RTK station-keeping mode starts to expose its deficiency, in conventional RTK difference station-keeping mode, due to difference, resolving function is to carry out on user side (rover station) equipment, thereby caused the increase of device fabrication cost, and then be unfavorable for the further large-scale promotion application of RTK technology; Though the central differential position system based on CORS network can overcome above-mentioned deficiency, its hardware environment to technology of network RTK relies on larger, not only needs the support of CORS observation grid, also needs network RTK service software simultaneously, and system maintenance and construction cost are high.
Utility model content
The purpose of this utility model is to provide a kind of single base station central differential position service system, mainly solves the location-based service system application cost existing in prior art higher, is unfavorable for the problem of applying.
To achieve these goals, the technical solution adopted in the utility model is as follows:
The central differential position service system in single base station, comprising:
Base station, carries out the first data transmission device of data interaction by the GNSS data receiver that Pseudo-range Observations, carrier phase observation data, satellite navigation almanac data, datum mark coordinate are received and gathered and harvester, with central server and fixture that base station is fixed in district to be measured forms; In the utility model, base station only arranges one.
Rover station, by the 2nd GNSS data receiver and the harvester that Pseudo-range Observations and carrier phase observation data are received and gathered, and forms with the second data transmission device that central server carries out data interaction; In the utility model, rover station can be a plurality of.
Communication link, comprises realizing wire communication module and the wireless communication module of data interaction between base station, rover station and central server;
Central server, by base station and rover station transmission and the data of coming are stored and analyzing and processing, realizes difference location;
Wherein, a GNSS data receiver is connected with first data transmission device with harvester, and first data transmission device is connected with central server by communication link; The 2nd GNSS data receiver is connected with the second data transmission device with harvester, and the second data transmission device is connected with central server by communication link.
Because base station is static, thereby the employing of described first data transmission device comprises that serial ports transmitting device and/or network interface transmitting device etc. carry out wire transmission.
Because rover station is dynamically, thereby described the second data transmission device is wireless data transmission device.
As preferably, described wireless data transmission device is at least one in 3G module, GPRS module, CDMA module, WLAN module, WIFI module, bluetooth module, infrared module.
In order to ensure the comprehensive and stability of signals collecting, described base station is arranged at place, centre position, district to be measured, and described rover station is more than one.
Compared with prior art, the utlity model has following beneficial effect:
(1) in the utility model, use a static survey station as base station, by fixture, centre position, district to be measured being fixed on in base station locates, this kind of set-up mode has the advantages that to be convenient to enforcement, and base station is arranged to place, centre position, district to be measured and is conducive to the signal in district to be measured to carry out comprehensive, stable reception, realistic demand.
(2) the utility model is by all survey stations, be that the observation data of base station and rover station is transmitted back to central server and carries out difference location, by to the effective division of function separately of base station and rover station, and the difference of all rover stations is resolved to function and transferred to central server and concentrate and resolve, make rover station only need carry out GNSS data acquisition and transmission, greatly reduce function and the performance requirement of RTK receiver, and then reduced device fabrication cost and implemented difficulty, be applicable to large-scale promotion application.
(3) in the utility model, only a base station need be set, and system does not rely on the software platform of network RTK costliness when the RTK that carries out Centimeter Level serves with monitoring position, therefore, practical value is higher, especially meets the Production requirement of middle-size and small-size enterprises and institutions.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
Higher in order to solve the location-based service system application cost existing in prior art, be unfavorable for the problem of applying, as shown in Figure 1, the utility model discloses the central differential position service system in a kind of single base station, this system mainly consists of base station, rover station, communication link and central server.
Wherein, base station is a static survey station, generally establish and stand in the middle of district to be measured, its service radius is preferably 15km, base station is by GNSS data receiver and harvester, data transmission device and fixture form, the GNSS data type gathering comprises: Pseudo-range Observations, carrier phase observation data and satellite navigation ephemeris, except providing measured value, base station also needs to provide datum mark coordinate, this coordinate can obtain by pseudorange single-point location, because base station is static, its data transmission device can be serial ports transmitting device, also can be network interface transmitting device, be responsible for sending data to central server,
The Main Function of rover station is the GNSS observation data that gathers tested point place, comprise Pseudo-range Observations and carrier phase observation data, therefore, rover station equipment mainly contains GNSS data receiver and harvester and data transmission device, rover station is kept in motion conventionally, therefore preferably adopts wireless data transmission device that rover station observation data is reached to central server;
Communication link is responsible for the Various types of data of base station, rover station to the remote transmission of central server, transfer of data between base station and central server can be wire transmission mode, also wireless transmission method, mainly comprise two kinds of modes of serial communication and network interface communication, because rover station is kept in motion, the transfer of data of itself and central server is wireless network transmissions mode;
Central server is the core data processing unit of whole system, and the observation data of rover station and base station all comes together in central server, and on central server, completes the work of difference location, and it is optional with computer, center processor etc.
Operation principle of the present utility model is as follows:
Base station and rover station equipment only possess data acquisition and transfer function, compare with traditional RTK station-keeping mode, native system has been simplified all rover stations and has been carried out the required functions of the equipments demand of RTK operation, thereby reduced ustomer premises access equipment cost, system can adopt short baseline tupe when carrying out difference location, base station to the distance of rover station is generally less than 20km, therefore rover station is located required satellite ephemeris only needs the navigation ephemeris of satellite self broadcast to meet the demands, system only need gather satellite navigation almanac data to reduce the volume of transmitted data of rover station end at place, base station, central server receives from the data of base station and each rover station and carries out the real-time dynamic coordinate of difference positioning calculation acquisition rover station, central server can be back to rover station end by radio communication chain circuit by user's positioning result, thereby realize conventional RTK positioning service, in addition, central server also can be directly used in the application of other monitoring position class, realizes the location-based service based on server end.
In the utility model, each device and device blocks are existing hardware design, and the device that can realize corresponding function is more, thereby just more do not speak more bright and limit at this.
According to above-described embodiment, just can realize well the utility model.
Claims (5)
1. the central differential position service system in single base station, is characterized in that, comprising:
Base station, carries out the first data transmission device of data interaction by the GNSS data receiver that Pseudo-range Observations, carrier phase observation data, satellite navigation almanac data, datum mark coordinate are received and gathered and harvester, with central server and fixture that base station is fixed in district to be measured forms;
Rover station, by the 2nd GNSS data receiver and the harvester that Pseudo-range Observations and carrier phase observation data are received and gathered, and forms with the second data transmission device that central server carries out data interaction;
Communication link, comprises realizing wire communication module and the wireless communication module of data interaction between base station, rover station and central server;
Central server, by base station and rover station transmission and the data of coming are stored and analyzing and processing, realizes difference location;
Wherein, a GNSS data receiver is connected with first data transmission device with harvester, and first data transmission device is connected with central server by communication link; The 2nd GNSS data receiver is connected with the second data transmission device with harvester, and the second data transmission device is connected with central server by communication link.
2. the central differential position service system in single base station according to claim 1, is characterized in that, described first data transmission device comprises serial ports transmitting device and/or network interface transmitting device.
3. the central differential position service system in single base station according to claim 1, is characterized in that, described the second data transmission device is wireless data transmission device.
4. single base station according to claim 3 central authorities differential position service system, it is characterized in that, described wireless data transmission device is at least one in 3G module, GPRS module, CDMA module, WLAN module, WIFI module, bluetooth module, infrared module.
5. according to the central differential position service system in the single base station described in claim 2 ~ 4 any one, it is characterized in that, described base station is arranged at place, centre position, district to be measured, and described rover station is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606590.3U CN203482399U (en) | 2013-09-29 | 2013-09-29 | Single-base-station central-differential-position service system |
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| CN201320606590.3U CN203482399U (en) | 2013-09-29 | 2013-09-29 | Single-base-station central-differential-position service system |
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| CN203482399U true CN203482399U (en) | 2014-03-12 |
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| CN201320606590.3U Expired - Fee Related CN203482399U (en) | 2013-09-29 | 2013-09-29 | Single-base-station central-differential-position service system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226956A (en) * | 2016-12-22 | 2018-06-29 | 千寻位置网络有限公司 | A kind of differential data protection processing method and its system |
| CN108834073A (en) * | 2018-03-30 | 2018-11-16 | 山东路科公路信息咨询有限公司 | A kind of road network data acquisition system |
| CN111163417A (en) * | 2018-10-22 | 2020-05-15 | 千寻位置网络有限公司 | Control method and device for positioning calculation, positioning method, system and terminal |
-
2013
- 2013-09-29 CN CN201320606590.3U patent/CN203482399U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226956A (en) * | 2016-12-22 | 2018-06-29 | 千寻位置网络有限公司 | A kind of differential data protection processing method and its system |
| CN108226956B (en) * | 2016-12-22 | 2021-08-03 | 千寻位置网络有限公司 | Differential data protection processing method and system |
| CN108834073A (en) * | 2018-03-30 | 2018-11-16 | 山东路科公路信息咨询有限公司 | A kind of road network data acquisition system |
| CN111163417A (en) * | 2018-10-22 | 2020-05-15 | 千寻位置网络有限公司 | Control method and device for positioning calculation, positioning method, system and terminal |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140929 |
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