CN203313217U - A real time positioning gateway - Google Patents
A real time positioning gateway Download PDFInfo
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- CN203313217U CN203313217U CN2013202670653U CN201320267065U CN203313217U CN 203313217 U CN203313217 U CN 203313217U CN 2013202670653 U CN2013202670653 U CN 2013202670653U CN 201320267065 U CN201320267065 U CN 201320267065U CN 203313217 U CN203313217 U CN 203313217U
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Abstract
The utility model discloses a real time positioning gateway comprising a control module, an ultra wide band wireless radio frequency module, a power supply module, and a network communication module. The real time positioning gateway obtains distance measurement information generated through the adoption of UWB communication technology by means of a UWB wireless radio frequency module. The control module transforms the form of the distance measurement information into a form suitable for IP network communication, and the transformed information is sent to an IP network. Though the adoption of the real time positioning gateway, communication between a UWB device and an IP network device is realized, and the gateway is adaptable to different types of network communication mediums.
Description
Technical field
The utility model belongs to real-time field of locating technology, and in particular, the utility model relates to the real-time location gateway that a kind of integrated UWB communication is communicated by letter with IP network.
Background technology
In the informationalized modern times, development along with all kinds of LBS business, people are more and more stronger for the demand of positional information, in traditional navigation system, GPS is that precision is higher and have a navigation system of generality, but GPS is easily blocked by ground obstacle, cause locating, this just needs a kind of high accuracy real-time positioning system that is not subjected to geographic restriction.The indoor locating system based on technology such as WIFI, RFID, Zigbee, bluetooths occurred in recent years, but positioning precision is not high, can not meet the demand of hi-Fix.Ultra broadband (UWB, Ultra Wideband) communication technology can meet the demand of hi-Fix, but because UWB need to could realize location by special-purpose equipment, existing most of positioning equipment is not supported the communication of this frequency range, collect and send to the equipment in IP network so just be badly in need of a kind of ranging information that bottom UWB signal post can be produced.
The utility model content
Therefore, the purpose of this utility model is to provide a kind of real-time location gateway, can realize that the UWB special equipment communicates by letter with the mutual of internet device, and supports the multiple network environment.
To achieve these goals, the utility model provides a kind of real-time location gateway, it comprises embedded main board, control module, super wideband wireless radio-frequency module, power module, network communication module, wherein the super wideband wireless radio-frequency module is connected with described control module respectively with network communication module, described power module provides normal voltage for other each modules, and described control module, super wideband wireless radio-frequency module, power module and network communication module are integrated on embedded main board.
In technique scheme, described network communication module can comprise Ethernet interface and/or USB interface.
In technique scheme, this locates gateway in real time also can comprise the WiFi module, and described WiFi module is communicated by letter with described control module by described USB interface.
In technique scheme, described USB interface can be the USB2.0 interface.Described super wideband wireless radio-frequency module can adopt the nanoPAN5375 chip.Described control module can comprise central processing unit and storage device, and described central processing unit can comprise serial peripheral interface.Described super wideband wireless radio-frequency module can be connected with described central processing unit by serial peripheral interface.Described control module can be used for the ranging data that ultra-wideband communications produces is converted to the form that is applicable to IP network communication.
Compared with prior art, the utlity model has following technique effect:
1, the utility model can be realized communicating by letter between UWB equipment and IP network equipment;
2, the utility model can adapt to the various network communications medium;
3, the utility model can be realized the demand to real-time location.
The accompanying drawing explanation
Below, describe by reference to the accompanying drawings embodiment of the present utility model in detail, wherein:
Fig. 1 is the structural representation according to the real-time location gateway of an embodiment of the utility model.
Embodiment
According to one embodiment of present invention, provide a kind of real-time location gateway, its structural representation as shown in Figure 1.The location gateway comprises control module, UWB wireless radio frequency modules, power module, network communication module etc. in real time, and above-mentioned module integration is on embedded main board.Wherein the UWB wireless radio frequency modules is connected with described control module respectively with network communication module, and described power module provides normal voltage for other each modules.The location gateway can obtain the ranging information that adopts the UWB communication technology to produce by the UWB wireless radio frequency modules in real time, and control module is converted to this ranging information the form that is applicable to IP network communication, and sends in IP network by network communication module.
More specifically, control module comprises central processing unit and storage device.What wherein, central processing unit adopted is the S3C2440ARM processor that Samsung produces.Storage device consists of SDRAM chip (being commonly referred to internal memory) and flash chip.Wherein, (model is: HY57V561620FTP/MT48LC16M16A2), they connect together and form the bus data width of 32, can increase like this speed of access to have used two external 32M to form altogether the SDRAM chip of 64M.Flash chip is mainly used in storing the operating system of this real-time gateway in location.In this real-time network for location Central Shanxi Plain, can provide two kinds of flash chips, a kind of is NOR Flash, and model is SST39VF1601, and size is 2Mbyte; Another kind is NAND Flash, and model is K9F1G08, and size is 128M.The S3C2440ARM processor adopted supports these two kinds of Flash to start, and by toggle switch, just can select still from NAND, to start the operating system from NOR.This operating system comprises the module for Data Collection, conversion and processing, for example the ranging data of UWB communication is converted to the form that is applicable to IP network communication.This operating system is based on embedded Linux system development.
In addition, the S3C2440 processor itself has 3 serial ports UART0,1,2, UART0 wherein, 1 can be combined to a Full Featured serial ports, in most application, only uses 3 simple serial port functions, be usually said transmission (TXD) and reception (RXD), CON0, CON1, CON2 on their difference respective panels, these 3 interfaces are all directly drawn from CPU, are Transistor-Transistor Logic levels.Wherein mainly used CON0, be used for exporting this is located to the Debugging message of gateway in real time, and real-time network for location is closed and manages and configure.
What the UWB wireless radio frequency modules adopted is the nanoPAN5375 chip of nanotron company, this chip operation frequency 2.4GHz, aspect precision ranging, done particular design, it is other that range accuracy can reach sub-meter grade, simultaneously two-way data communication can be supported, the demand of wireless real time location system can be met well.This UWB wireless radio frequency modules is connected to the SPI interface (Serial Peripheral Interface, serial peripheral interface) of central processing unit.Above-mentioned central processing unit S3C2440 itself provides a SPI interface, is used for connecting the UWB wireless radio frequency modules, realizes the transmitting-receiving to ranging data.This UWB wireless radio frequency modules can receive the ranging data of a plurality of location nodes in the UWB network, and can under location node in the UWB network, send instructions.
Network communication module comprises Ethernet interface, in order to be connected with spider lines.Wherein, adopted the DM9000 network card chip, it can self adaptation 10/100M network, in the RJ45 connector, has comprised coupling coil, therefore needn't separately connect network transformer, uses common netting twine can connect this gateway to Internet.
In yet another embodiment, network communication module also can comprise one or more USB interface.The USB interface provided can external WiFi module and/or bluetooth module, thereby radio network interface is provided.In addition, USB interface can also for the equipment connections such as bluetooth or RFID.Like this, this is located in real time gateway and can realize access and the interoperability with multiple heterogeneous network equipment by these interfaces.For example, in this network for location Central Shanxi Plain, can connect the WiFi module with a USB Host, another USB2.0 interface is vacated, convenient other equipment of expansion.The USB interface wherein adopted can be the USB2.0 interface.
In yet another embodiment, network communication module can comprise two kinds of USB interface, and a kind of is USB Host, and the USB interface of it and common PC is the same, can connect the common USB peripheral hardwares such as USB wireless network card, USB camera, USB keyboard, USB mouse, flash disk; Another is USB Slave, generally with its Target Board that downloads.
Power module is directly used external 5V power supply, produces whole real-time location gateway needed three kinds of voltage: 5V, 3.3V, 2.5V by the step-down chip.
In addition, on this embedded main board, also adopt professional reset chip MAX811 to realize that the needed low level of CPU resets.In addition, also provide jtag interface for single-step debug.Board production is out the time, and the inside, without any program,, generally by jtag interface programming first program, is exactly at this moment Bootloader(start-up loading device), by Bootloader, can use USB interface to download more complicated system program etc.
After this gateway powers on, start the operating system, check and initiating hardware equipment, after startup, this gateway is set up the TCP server and is waited for the request to locator data from client in corresponding port, the UWB of initialization simultaneously wireless radio frequency modules, monitor the UWB channel, if do not receive the request from client, this gateway is ignored all UWB channel datas, only have when receiving client-requested, by the UWB wireless radio frequency modules, receive the ranging data of a plurality of location nodes in the UWB network, by control module, this ranging data is converted to the form that is suitable for IP network communication, and by its by network communication module be transferred to send this request client (for example, location-server in WiFi or cable network), so that this request is responded.That is to say that this gateway follows request the principle of response is just arranged, reduced like this data volume in the network, guaranteed response speed.This gateway is supported the connection of multi-client, can serve a plurality of clients simultaneously.Location-server also can be transferred to this location gateway in real time by WiFi or cable network by the operational order to location node, then the location gateway is transferred to the positioning label of appointment by the UWB wireless radio frequency modules in real time, thus the bidirectional operation between can completing UWB communication and IP network being communicated by letter.In addition, if the operating system of this gateway causes crashing for a certain reason or not reaction, gateway will be within the regular hour autoboot, reinitialize gateway, wait for the connection of client.
Below in conjunction with several application scenarioss, further describe the concrete application according to the real-time location gateway of above-described embodiment:
1, hi-Fix under open environment
Required location and the navigation of carrying out personnel of very great open field at present, large-scale shopping center for example, under this environment, need to lay a large amount of beaconing nodes, several beaconing nodes of take simultaneously be unit lay one in real time the location gateway form a positioning unit, in this unit by each UWB equipment of this gateway management.A plurality of positioning units just can form a large open environment, in this environment, unknown node, by switching the high-precision location that obtains that different positioning units can continue, has had the result of location just can carry out a series of information pushing based on positioning service.
2, the location in narrow channel environment
In having long and narrow channel application scene, for example personnel's location and management in drive.Because environment is narrower, a positioning unit even all fails to lay down in this scene, so only need a location gateway, unknown node, by the switching between different gateways, just can be known the position of node, in this case like this, positioning precision is lower, but lower deployment cost significantly reduces.
3, the location of room level
Under some private environment, the user does not wish that others knows detailed positional information, private office for example, so only need the testing staff whether in room, under this environment, can in room, only dispose such gateway device, by the data of different gateway devices, identify room, and personnel's Position Approximate.
By above-described embodiment, can find out, the ranging data of a plurality of location nodes that the real-time location gateway that the utility model provides can produce bottom UWB communication is transferred in IP network in real time, for the upper strata application, has met the hi-Fix demand; And can adapt to multiple different network environment, this gateway not only should provide wired network interface, also can provide the communication interface of WIFI simultaneously.
Finally, the above embodiments only are used for illustrating the utility model and it are not carried out to any restriction.It will be understood by those skilled in the art that under not by spirit of the present utility model and principle various equivalent variation, the modification that above-described embodiment is carried out and improving all within protection range of the present utility model.
Claims (9)
1. locate in real time gateway for one kind, comprise embedded main board, control module, super wideband wireless radio-frequency module, power module, network communication module, wherein the super wideband wireless radio-frequency module is connected with described control module respectively with network communication module, described power module provides normal voltage for other each modules, and described control module, super wideband wireless radio-frequency module, power module and network communication module are integrated on embedded main board.
2. real-time location according to claim 1 gateway, described network communication module comprises Ethernet interface.
3. real-time location according to claim 2 gateway, described network communication module also comprises USB interface.
4. real-time location according to claim 3 gateway, also comprise the WiFi module, and described WiFi module is communicated by letter with described control module by described USB interface.
5. according to the described real-time location of claim 3 or 4 gateway, described USB interface is the USB2.0 interface.
6. according to the described real-time location of any one gateway in claim 1-4, described super wideband wireless radio-frequency module adopts the nanoPAN5375 chip.
7. real-time location according to claim 6 gateway, described control module comprises central processing unit and storage device, described central processing unit comprises serial peripheral interface.
8. real-time location according to claim 7 gateway, described super wideband wireless radio-frequency module is connected with described central processing unit by serial peripheral interface.
9. real-time location according to claim 3 gateway, described control module are converted to the form that is applicable to IP network communication for the ranging data that ultra-wideband communications is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202670653U CN203313217U (en) | 2013-05-16 | 2013-05-16 | A real time positioning gateway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202670653U CN203313217U (en) | 2013-05-16 | 2013-05-16 | A real time positioning gateway |
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| CN203313217U true CN203313217U (en) | 2013-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113938818A (en) * | 2021-09-13 | 2022-01-14 | 联想(北京)有限公司 | Information processing method and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113938818A (en) * | 2021-09-13 | 2022-01-14 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN113938818B (en) * | 2021-09-13 | 2023-01-06 | 联想(北京)有限公司 | Information processing method and electronic equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140516 |