CN202135332U - Positioner based on UWB and CDMA hybrid positioning technology - Google Patents
Positioner based on UWB and CDMA hybrid positioning technology Download PDFInfo
- Publication number
- CN202135332U CN202135332U CN201120265285U CN201120265285U CN202135332U CN 202135332 U CN202135332 U CN 202135332U CN 201120265285 U CN201120265285 U CN 201120265285U CN 201120265285 U CN201120265285 U CN 201120265285U CN 202135332 U CN202135332 U CN 202135332U
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- uwb
- positioning
- cdma
- power amplifier
- chip microcomputer
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Abstract
The utility model relates to a positioner based on UWB and CDMA hybrid positioning technology, comprising a CDMA base station, a UWB system comprising at least four UWB units and a terminal positioning device, wherein the terminal positioning device comprises an antenna, a power amplifier, a UWB communication module, a CDMA transmit-receive module and a one-chip microcomputer, the antenna is connected with the power amplifier, an output end of the power amplifier is communicated with the UWB communication module, the one-chip microcomputer is connected with the CDMA transmit-receive module via a UART interface and is connected with a UWB transmit-receive module via an SPI interface. Advantages of the positioner are that a high precision characteristic of the UWB wireless positioning and high reliability of the CDMA positioning are fully utilized to conduct hybrid position. When one positioning mode is effectively, then the effective positioning mode is utilized to position, and when the two positioning modes are both effective, the positioning information of the two positioning modes are fused, and therefore, positioning precision is improved, and reliability of the positioning is improved.
Description
Technical field:
The utility model relates to a kind of locator, especially relates to a kind of locator based on UWB and CDMA hybrid location determination technology.
Background technology:
Using at present more locator on the market is exactly the GPS navigation location, and it is better at the outdoor locating effect of spaciousness, and precision is higher; But in urban district indoor or that building is intensive; Because gps signal receives blocking of building etc., its locating effect is very undesirable, even can not locate at all.Wireless location such as Zigbee are a kind of technology that latest developments are got up, and reliability is lower, the weakness of positioning accuracy difference but it exists.Existing indoor positioning technology; Like light track and localization technology, ultrasonic locating Technology Need location reference point is set in advance; Bluetooth location technology, Wi-Fi location technology and ZigBee then because communication distance is shorter, are difficult to satisfy the positioning requirements of the longer distance of not establishing relay point.
The utility model content:
The purpose of the utility model be provide to the prior art weak point that a kind of penetration power is strong, interference resistance is strong, low-power consumption, can be used for the locator based on UWB and CDMA hybrid location determination technology of indoor accurate position.
The purpose of the utility model is to realize through following measure: a kind of locator based on UWB and CDMA hybrid location determination technology, and it comprises cdma base station, has the UWB system of four UWB unit at least, it is characterized in that: also have the terminal positioning device; Said terminal positioning device comprises antenna, power amplifier, UWB communication module, CDMA transceiver module, single-chip microcomputer; Said antenna connects power amplifier, the power amplifier output is connected with the UWB communication module, and said single-chip microcomputer is connected with the CDMA transceiver module through the UART interface, is connected with the UWB transceiver module through the SPI interface.
Compared with prior art, the locator based on UWB and CDMA hybrid location determination technology that has adopted the utility model to propose has following advantage: made full use of the high accuracy characteristic of UWB wireless location and the high reliability of CDMA location and come mixed positioning.When having only a kind of locate mode effective, can adopt this locate mode to position, when two kinds of locate modes are all effective, can two kinds of locating information be merged, improve positioning accuracy, also improved the reliability of location.
Description of drawings:
Fig. 1 is the example structure functional-block diagram that the utility model proposes.
Fig. 2 is the utility model CDMA location structure sketch map.
Embodiment:
Below in conjunction with accompanying drawing embodiment is elaborated: Fig. 1～Fig. 2 provides an embodiment of the utility model.Among the figure, a kind of locator based on UWB and CDMA hybrid location determination technology, it comprises cdma base station, has a UWB system of four UWB unit, terminal positioning device at least.Four UWB unit of said UWB system are respectively 6,7,8,9, before the location, are fixed on earlier on the known location of personnel to be positioned region, at any time the sending and receiving signal.Said terminal positioning device comprises antenna 1, power amplifier 2, UWB communication module 3, CDMA transceiver module 4, single-chip microcomputer 5; Said antenna 1 connects power amplifier 2, power amplifier 2 outputs are connected with UWB communication module 3, and said single-chip microcomputer 5 is connected with CDMA transceiver module 4 through the UART interface, is connected with UWB communication module 3 through the SPI interface.The single-chip microcomputer model adopts MSP430 in this instance.
The utility model is work like this: UWB communication module 3 is according to the needs of location; Outwards send the UWB pulse at set intervals; UWB unit 6,7,8,9 receives the UWB pulse that UWB communication module 3 sends through the UWB data protocol, sends answer signal then, and the terminal positioning device receives answer signal through antenna 1; Earlier signal is amplified through power amplifier 2 earlier; Deliver to UWB communication module 3 then, the SPI mouth through MSP430 single-chip microcomputer 5 is connected with single-chip microcomputer at last, and the locating information that the UART mouth of while CDMA transceiver module 4 through MSP430 single-chip microcomputer 5 obtains cdma network is delivered to MSP430 single-chip microcomputer 5.Information such as MSP430 single-chip microcomputer 5 is poor through UWB pulse signal time of advent, signal strength signal intensity and signal arrive angle are confirmed the positional information of locating terminal; And locating information that cdma network is obtained and the locating information of UWB are carried out filtering and fusion, obtain more accurate localization information.According to the needs of positioning accuracy, can also suitably add the number of UWB unit, the terminal positioning device is carried by personnel to be positioned in addition, and in the overlay area of cdma network.
Fig. 2 is the utility model CDMA location structure sketch map.Among the figure; The terminal positioning device is when a certain zone; Near CDMA mobile base station 3,4,5 receives CDMA transceiver module 2 emitted radio signal through cdma network 1, sends the relevant parameter of signal among the mobile network location-server, calculates the position of portable terminal.This localization method existing C DMA network capable of using does not need to arrange net again and sets up an office, and greatly reduces positioning cost.
Combine accompanying drawing to describe the execution mode of the utility model above; The structure that embodiment provides does not constitute the restriction to the utility model, and those skilled in the art make various distortion within the scope of the appended claims or revise all in protection range in this area.
Claims (1)
1. locator based on UWB and CDMA hybrid location determination technology, it comprises cdma base station, has the UWB system of four UWB unit at least, it is characterized in that: also have the terminal positioning device; Said terminal positioning device comprises antenna, power amplifier, UWB communication module, CDMA transceiver module, single-chip microcomputer; Said antenna connects power amplifier, the power amplifier output is connected with the UWB communication module, and said single-chip microcomputer is connected with the CDMA transceiver module through the UART interface, is connected with the UWB transceiver module through the SPI interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265285U CN202135332U (en) | 2011-07-22 | 2011-07-22 | Positioner based on UWB and CDMA hybrid positioning technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265285U CN202135332U (en) | 2011-07-22 | 2011-07-22 | Positioner based on UWB and CDMA hybrid positioning technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202135332U true CN202135332U (en) | 2012-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120265285U Expired - Fee Related CN202135332U (en) | 2011-07-22 | 2011-07-22 | Positioner based on UWB and CDMA hybrid positioning technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202135332U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104754515B (en) * | 2015-03-30 | 2019-03-26 | 北京云迹科技有限公司 | Mixed positioning assists map modification method and system |
| CN111698773A (en) * | 2020-06-22 | 2020-09-22 | 河北云酷科技有限公司 | Chain table positioning method for improving UWB positioning effect |
-
2011
- 2011-07-22 CN CN201120265285U patent/CN202135332U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104754515B (en) * | 2015-03-30 | 2019-03-26 | 北京云迹科技有限公司 | Mixed positioning assists map modification method and system |
| CN111698773A (en) * | 2020-06-22 | 2020-09-22 | 河北云酷科技有限公司 | Chain table positioning method for improving UWB positioning effect |
| CN111698773B (en) * | 2020-06-22 | 2022-05-31 | 河北云酷科技有限公司 | Chain table positioning method for improving UWB positioning effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |