CN201278536Y - Wireless sensor network multi-port gateway equipment with terminal function - Google Patents
Wireless sensor network multi-port gateway equipment with terminal function Download PDFInfo
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- CN201278536Y CN201278536Y CNU200820034061XU CN200820034061U CN201278536Y CN 201278536 Y CN201278536 Y CN 201278536Y CN U200820034061X U CNU200820034061X U CN U200820034061XU CN 200820034061 U CN200820034061 U CN 200820034061U CN 201278536 Y CN201278536 Y CN 201278536Y
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Abstract
The utility model discloses multi-interface gateway equipment of a wireless sensor network with terminal function, comprising a processor unit, an Ethernet communication unit, a serial port communication unit, a Bluetooth communication unit, a wireless communication unit and a user display unit. The gateway equipment integrates the terminal display function, can display, store and control data for the wireless sensor network to realize the terminal function of the gateway equipment, has small volume and light weight, can be effectively applied to an outdoor environment where a PC machine or large-scale terminal equipment can not be carried, solves the difficult problem that the traditional gateway can not be used due to the lack of the PC machine or an AC power supply and promotes the practical course of the wireless sensor network.
Description
Technical field
The utility model relates to embedded system, wireless sensor network technology field, particularly a kind of wireless sensor network multi-interface gateway equipment with termination function.
Background technology
At present, wireless sensor network obtains and treatment technology as a kind of brand-new information, and beginning obtains application more and more widely in fields such as military affairs, environment, health, families.Use for various environmental monitorings long-term or short-term, traditional wired TT﹠C system often is difficult to be competent at owing to reasons such as difficult wiring, complex structures.Wireless sensor network has solved this problem well as an important expansion and additional of wired TT﹠C system.
Fig. 1 is the typical structure schematic diagram of wireless sensor network system, and it has described three types the node that wireless sensor network system comprised, i.e. sensor node, aggregation node (being the base station) and user management node.We can see from figure, have disposed a large amount of wireless sensor nodes in the sensor zone, and each node can be gathered the field data of its overlay area and be routed to the base station.The base station is made up of communication module and gateway two parts usually.Wherein, communication module is responsible for communicating with the wireless sensor network of wireless sensor node composition; Gateway then is responsible for by different transmission mediums wireless sensor network being bridged to user management node (being user terminal).At present, the base station adopts the RS232 interface to be connected with PC mostly, and the user then realizes the visit of data on PC.Though this method can satisfy in demand of laboratory, has many problems in actual applications, is in particular in:
1, in actual environment, often can't carry main equipments such as PC, and the 220V AC power is provided for it.
2, under the situation that lacks terminal equipments such as PC, can't carry out data access to sensor network.
3, gateway interface is single, can't connect a plurality of terminal equipments simultaneously and realize data sharing.
4, can't with the portable set of extensively popularizing, connect as PDA (palmtop PC), smart mobile phone.
In view of the practical application request of present wireless sensor network, the characteristics of combining with wireless sensor network self, design realizes that a kind of wireless sensor network multi-interface gateway with termination function will have crucial meaning.
The utility model content
The utility model purpose provides a kind of wireless sensor network multi-interface gateway equipment with termination function, mainly solve following technical problem: the one, the termination function of realization gateway device satisfies wireless sensor network in the application demand that lacks under the PC environment; The 2nd, set up reliable connection the between wireless sensor network and the multiple user terminal.
The technical solution adopted in the utility model is as follows:
A kind of wireless sensor network multi-interface gateway equipment with termination function is characterized in that comprising: processor unit, ethernet communication unit, serial communication unit, bluetooth-communication unit, wireless communication unit and user's display unit;
Described processor unit is used to control the data circulation between ethernet communication unit, serial communication unit, bluetooth-communication unit and the wireless communication unit, also the data of wireless sensor network is stored and shows;
Described ethernet communication unit is used to realize communicating by letter between gateway device and the ethernet end device;
Described serial communication unit is used to realize that gateway device and local PC carry out RS-232 and be connected;
Described bluetooth-communication unit is used to realize communicating by letter between gateway device and the portable set;
Described wireless communication unit is used to realize the data communication between gateway device and the wireless sensor network;
Described user's display unit is used to realize the man-machine interaction between gateway device and the user, makes gateway device have termination function.
Compare the scheme that single face gateway device that traditional wireless sensor networks generally adopts connects the PC terminal, the utlity model has following beneficial effect:
1, integrated terminal Presentation Function on the gateway device of the present utility model, can be under the situation that lacks other-end equipment, wireless sensor network is carried out data to be shown, stores and control, realized the termination function of gateway device, and volume is little in light weight, can effectively be applied to can't carry in the outdoor environment of PC or large-scale terminal equipment.
2, the utility model combines embedded technology with the traditional wireless sensor networks technology, the integrated interface of serial ports, bluetooth and ethernet end device on gateway device, and a plurality of terminals can connect wireless sensor network simultaneously and realize data sharing; The gateway device cost is lower, can be used in wireless sensor network and disposes in a large number, and the overlay area is wide, and can be connected with remote computer with Internet by Ethernet interface, realizes the remote transmission of wireless sensor network data.
3, gateway device of the present utility model is low in energy consumption, uses powered battery, and can effectively be applied to can't provide in the outdoor environment of reliable DC power supply, has promoted the practicalization of wireless sensor network.
4, gateway device of the present utility model is integrated powerful processor and abundant external memory devices thereof, data processing, storage capacity are strong, are convenient to realize that network data merges, and have reduced the communication overhead with terminal equipment; And can expand the portable user terminal interface by processor, and cooperate smart mobile phone or PDA, can be applied to occasions such as Smart Home, cell monitoring.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Fig. 1 is the typical structure schematic diagram of wireless sensor network system.
Fig. 2 is a gateway device structured flowchart of the present utility model.
Fig. 3 A～Fig. 3 C is the main pin connection layout of processor;
Fig. 3 D is the external memory storage circuit.
Fig. 4 is an ethernet communication element circuit schematic diagram of the present utility model.
Fig. 5 is bluetooth-communication unit circuit theory diagrams of the present utility model.
Fig. 6 is the utility model wireless communication unit circuit theory diagrams.
Fig. 7 is user's display unit interface circuit schematic diagram of the present utility model.
Fig. 8 is the method schematic diagram that the utility model gateway device is used for transfer of data.
Fig. 9 is the method flow diagram that the utility model gateway device is used for transfer of data.
Embodiment
Fig. 1 is the typical structure schematic diagram of wireless sensor network system, as we can see from the figure, the sensor deployed in areas a large amount of wireless sensor nodes, each node can be gathered the field data of its overlay area and be routed to the base station.Traditionally, the base station is made up of communication module and gateway two parts, and wherein, the wireless sensor network that communication module is responsible for forming with wireless sensor node communicates; Gateway then is responsible for by different transmission mediums wireless sensor network being bridged to user terminal.In this embodiment, gateway device of the present utility model is promptly adopted in the base station.The sensor node that dispenses in the surveyed area is gathered sensing data, and the mode by wireless multi-hop sends to gateway device; After gateway device receives data, send to each subscriber terminal equipment by its ethernet communication unit, serial communication unit, bluetooth-communication unit; In some occasion that can't carry PC or main equipment, the termination function that utilizes gateway device to possess can be realized the data interaction of user and sensor network.
Fig. 2 is a gateway device structured flowchart of the present utility model, this gateway device comprises processor unit 1, ethernet communication unit 2, serial communication unit 3, bluetooth-communication unit 4, wireless communication unit 5 and user's display unit 6, also is included as the power module 7 that gateway device provides power supply.Wherein, processor unit 1 is used to control the data circulation between ethernet communication unit 2, serial communication unit 3, bluetooth-communication unit 4 and the wireless communication unit 5, also the data of wireless sensor network is stored and shows; Ethernet communication unit 2 is used to realize communicating by letter between gateway device and the ethernet end device; Serial communication unit 3 is used to realize that gateway device and local PC carry out RS-232 and be connected; Bluetooth-communication unit 4 is used to realize communicating by letter between gateway device and the portable set; Wireless communication unit 5 is used to realize the data communication between gateway device and the wireless sensor network; User's display unit 6 is used to realize the man-machine interaction between gateway device and the user, makes gateway device have termination function.
Ethernet communication unit 2 is connected with processor unit 1 by data/address bus, serial communication unit 3, bluetooth-communication unit 4 are connected with processor unit 1 by UART interface (Asynchronous Serial Interface) respectively, and wireless communication unit 5 is connected with processor unit 1 by SPI interface (synchronous serial interface).
Fig. 3 is processor unit circuit theory diagrams of the present utility model, and processor unit 1 further comprises processor and the external memory storage circuit that is connected with processor.As Fig. 3 A, a 32 embedded microprocessor S3C2410 that processor adopting Samsung Electronics releases based on the ARM920T kernel, 10 ADC (analog to digital formula transducer) of the DMA (directly main memory access) of this chip is integrated SDRAM (SDRAM) controller, LCD (LCD) controller, the UART of 3 passages, 4 passages, 4 timers and internal clocking, 8 passages with PWM (pulse width modulation) function.Chip S3C2410 also has a lot of abundant external interfaces, for example touch screen interface, IIC (two-way two-wire serial bus) bus interface, IIS (serial digital audio-frequency bus) bus interface, two USB (USB) host interface, a USB device interface, two SPI interfaces, SD (safe digital card) interface and MMC (multimedia card) card.As Fig. 3 B, the external memory storage circuit comprises SDRAM circuit and FLASH memory circuit.Wherein SDRAM adopts two HY57V561620 storage chips, forms 32 bit widths jointly, is connected with processor S3C2410 by data/address bus; NANDFlash adopts K9F1208U0M, and size is 64M, directly links to each other with the NANDFlash controller of S3C2410 inside; NORFlash is used to deposit a small amount of start-up code, and model is SST39VF160, and size is 16M, uses 16 bit data bus to be connected with S3C2410.
Fig. 4 is an ethernet communication element circuit schematic diagram of the present utility model.Ethernet communication unit 2 adopts low-power consumption that CIRRUSLOGIC companies produce, superior performance 16, meet the IEEE802.3 ethernet standard, and have ISA (industrial standard architecture bus) interface, comprise 4K byte RAM (random access memory) in the sheet, be applicable to I/O operator scheme, storage operation pattern and dma operation pattern, the 10Base-T connectivity port that has transmission, reception low-pass filtering supports the AUI (extra cell interface) of 10Base2,10Base5 and 10Base-F to retransmit automatically.The outstanding feature of this chip is to use flexibly, and its physical layer, data transfer layer and mode of operation etc. can both as required and dynamically be adjusted, and adapt to different applied environments by being provided with of internal register.Ethernet controller CS8900A is connected with processor S3C2410 by 16 bit data bus, wherein SD[0:15] distinguish the LDATA[0:15 of connection processing device], address wire SA[0:19] distinguish the LADDR[0:19 of connection processing device].
Fig. 5 is the bluetooth-communication unit circuit theory diagrams that the utility model provides.Bluetooth-communication unit 4 adopts the BCM_LV module of Ling Feng company, meets bluetooth V2.0 agreement, and normal sensibility (error rate) reaches-80dBm, built-in 2.4GHz antenna, external 8Mbit FLASH adopts error correction coding forward, the communication efficiency height, automatic frequency-hopping, antijamming capability is strong.Chip uses the 3.3V voltage power supply, is connected with processor by the UART interface, and pin UART_TXD, UART_TXD be pin RXD2, the TXD2 of connection processing device S3C2410 respectively.
The wireless communication unit circuit theory diagrams that Fig. 6 provides for the utility model.First of wireless communication unit 5 use Chipcon companies release meets the radio-frequency (RF) transceiver CC2420 of 2.4GHz IEEE802.15.4 standard, make with 0.18umCMOS technology, only need few external component, stable performance and power consumption are extremely low, chip supports data transmission rate up to 250kbps, can realize multi-multipoint quickly networking.CC2420 is connected with processor S3C2410 by the SPI interface, wherein pin SFD, CCA, FIFOP, FIFO are used for judging the operating state of CC2420, pin CSn, SCLK, SI, SO are used to be provided with CC2420 various command, control register, write or from the CC2420 reading of data to CC2420.The SCLK of CC2420, SI link to each other with the corresponding pin of processor SPI interface respectively with SO, and CSn, SFD, CCA, FIFO and FIFOP link to each other with processor universaling I/O port GPG2, GPG15, GPG7, GPG3, GPG6 respectively.
Fig. 7 is user's display unit interface circuit schematic diagram that the utility model provides.User's display unit adopts 3.5 cun TFT-LCD touch-screens of SHARP company, and resolution is 240 * 320, is connected with processor with touch screen interface by the LCD interface.Touch-screen is 4 wire resistance types, is made of the break-make of nYPON, YMON, 4 metal-oxide-semiconductors of four control signal control of nXPON, XMON lateral resistance line and longitudinal electrical resistance line.Processor S3C2410 has 8 analog input channels, and wherein passage 7 (AIN7) is as the input of X coordinate, and passage 5 (AIN5) is imported as the Y coordinate.
The serial communication unit adopts the MAX232 chip, realizes the conversion between RS232 level and the Transistor-Transistor Logic level.The 5V direct current is converted to 3.3V to power module 7 and 1.8V voltage is the gateway device power supply.
Fig. 8 is used for the method schematic diagram of transfer of data for the utility model gateway device, by the data distribution module data flow transmission is controlled, when described gateway device receive wireless sensor network upload data the time, to upload data and send to each subscriber terminal equipment, realize the one-to-many transmission; When gateway device receives the downlink data that different user terminals equipment sends, downlink data is sent to wireless sensor network, realize the many-one transmission.Gateway device of the present utility model allows the user to upload data by the observation of user's display unit on gateway device, and sends descending control command to wireless sensor network as a kind of special terminal equipment.Particularly: gateway device utilizes wireless communication unit and wireless sensor network to carry out multi-hop communication: when wireless communication unit receives the data that wireless sensor network uploads, at first packet is sent to the data distribution module, data distribution module and then packet is duplicated some part, each communication unit by gateway device is distributed to each subscriber terminal equipment, and terminal equipment can be serial port terminal equipment, Bluetooth terminal equipment or ethernet end device; When subscriber terminal equipment need at first send to downlink data packet the data distribution module when wireless sensor network sends downlink data packet, data distribution module and then packet is transmitted to wireless communication unit, and then send to wireless sensor network.Data upload is the relation of one-to-many, packet need be duplicated some parts, and data downstream is many-to-one relation, need avoid the conflict of data flow.Do not having under the situation of subscriber terminal equipment, the gateway device utilization carries User Interface also can realize termination function, realizes the data interaction with wireless sensor network.
Fig. 9 specifically comprises the steps: for the utility model gateway device is used for the method flow diagram of transfer of data
Step 1: gateway device and subscriber terminal equipment are electrically connected, subscriber terminal equipment comprises serial port terminal equipment, Bluetooth terminal equipment and ethernet end device, serial port terminal equipment is connected with gateway device by the RS-232 cable, ethernet end device is connected with gateway device by the RJ45 interface, Bluetooth terminal equipment is connected with gateway device by blue tooth interface, and bluetooth equipment is arranged in the range of receiving;
Step 2: open the gateway device power supply, start gateway application;
Step 3: h.323-configured gateway equipment and wireless sensor network be connected parameter, comprise communication frequency, power of communications, maximum neighbours' quantity etc.;
Step 4: h.323-configured gateway equipment and user terminal be connected parameter, comprise traffic rate, maximum client number of connection, port numbers, server ip etc.;
Step 5: the bind command of operation gateway device, bridge joint wireless sensor network and subscriber terminal equipment are for gateway device is created multitask system;
Step 6: carry out multitask, wherein, main task is used for carrying out alternately with the user, receives user's control commands, when the user passes through the interactive interface transmitting control commands, skips to step 7;
WSN (wireless sensor network) Data Receiving task is used for the data of uploading of monitoring wireless sensor network, if the Data Receiving success skips to step 7;
Serial data reception task is used to monitor the downlink data of serial port terminal equipment, if the Data Receiving success skips to step 7;
Blue-teeth data reception task is used to monitor the downlink data of Bluetooth terminal equipment, if the Data Receiving success skips to step 7;
Ethernet data reception task is used to monitor the downlink data of ethernet device, if the Data Receiving success skips to step 7;
Step 7: by the data distribution module data flow transmission is controlled, data upload is the relation of one-to-many, and the data distribution module duplicates some parts with packet; Data downstream is many-to-one relation, and the conflict of data flow is avoided in the control of data distribution module;
Step 8: data result is presented on the interactive interface, and the data display mode has two kinds, is respectively packet analytical form and diagrammatic form;
Step 9: data are stored and record.
The utility model adopts the mode of a plurality of threads of same process to realize the Multi-task Concurrency execution, to improve responding ability, the quality of graphical display and the efficient of exchanges data of user interface in the exploitation of wireless sensor network multi-interface gateway application program.Gateway application has 5 threads, comprises software main thread, WSN receiving thread, serial ports receiving thread, bluetooth receiving thread and Ethernet receiving thread.Other threads of main thread dispatching management are responsible for interface graphical display and user interactive simultaneously.Serial ports, bluetooth and Ethernet receiving thread are used for the control command of monitoring users terminal, and will order down and pass to sensor network.Send data to WSN simultaneously for fear of a plurality of threads, adopt Mutex object to carry out synchronously.The WSN receiving thread is used to monitor the data that sensor network is sent, and is distributed to each user terminal after packet resolved, and comprises main thread.
Claims (3)
1. the wireless sensor network multi-interface gateway equipment with termination function is characterized in that comprising: processor unit (1), ethernet communication unit (2), serial communication unit (3), bluetooth-communication unit (4), wireless communication unit (5) and user's display unit (6); Ethernet communication unit (2) is connected with processor unit (1) by data/address bus, described serial communication unit (3) is connected with processor unit (1) by Asynchronous Serial Interface, described bluetooth-communication unit (4) is connected with processor unit (1) by Asynchronous Serial Interface, and described wireless communication unit (5) is connected with processor unit (1) by synchronous serial interface;
Described processor unit (1) is used to control the data circulation between ethernet communication unit (2), serial communication unit (3), bluetooth-communication unit (4) and the wireless communication unit (5), also the data of wireless sensor network is stored and shows;
Described ethernet communication unit (2) is used to realize communicating by letter between gateway device and the ethernet end device;
Described serial communication unit (3) is used to realize that gateway device and local PC carry out RS-232 and be connected;
Described bluetooth-communication unit (4) is used to realize communicating by letter between gateway device and the portable set;
Described wireless communication unit (5) is used to realize the data communication between gateway device and the wireless sensor network;
Described user's display unit (6) is used to realize the man-machine interaction between gateway device and the user, makes gateway device have termination function.
2. the wireless sensor network multi-interface gateway equipment with termination function as claimed in claim 1 is characterized in that described user's display unit (6) adopts the TFT-LCD touch-screen, is connected with processor with touch screen interface by the LCD interface.
3. the wireless sensor network multi-interface gateway equipment with termination function as claimed in claim 1, it is characterized in that described processor unit (1) comprises processor and the external memory storage circuit that is connected with processor, described external memory storage circuit comprises SDRAM circuit and FLASH memory circuitry.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU200820034061XU CN201278536Y (en) | 2008-04-11 | 2008-04-11 | Wireless sensor network multi-port gateway equipment with terminal function |
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| CNU200820034061XU CN201278536Y (en) | 2008-04-11 | 2008-04-11 | Wireless sensor network multi-port gateway equipment with terminal function |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101975755A (en) * | 2010-10-09 | 2011-02-16 | 东南大学 | Wireless sensor network monitoring system for crop nitrogen |
| CN101984727A (en) * | 2010-11-24 | 2011-03-09 | 中国地质大学（武汉） | Wireless sensor network gateway equipment based on moveable interconnection of bluetooth |
| CN101252553B (en) * | 2008-04-11 | 2011-04-20 | 东南大学 | Wireless sensor network multi-interface gateway equipment with terminal function and uses thereof |
| CN102026418A (en) * | 2010-11-10 | 2011-04-20 | 中国地质大学（武汉） | Wireless sensor network gateway device with 3G remote transmission |
| CN102487536A (en) * | 2010-12-02 | 2012-06-06 | 中国移动通信集团上海有限公司 | Method, device and system for sending downlink control information |
| CN102739290A (en) * | 2012-06-14 | 2012-10-17 | 广东电网公司汕头供电局 | Interactive terminal with power line carrier communication access function |
| CN104995877A (en) * | 2013-01-18 | 2015-10-21 | 三星电子株式会社 | Smart home system using portable device |
| CN106603430A (en) * | 2016-11-16 | 2017-04-26 | 上海无线电设备研究所 | SOPC-based general data communication interface integration method |
| CN110912810A (en) * | 2019-11-08 | 2020-03-24 | 中国电建集团国际工程有限公司 | Data transmission method, intelligent gateway, computer equipment and storage medium |
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2008
- 2008-04-11 CN CNU200820034061XU patent/CN201278536Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101252553B (en) * | 2008-04-11 | 2011-04-20 | 东南大学 | Wireless sensor network multi-interface gateway equipment with terminal function and uses thereof |
| CN101975755A (en) * | 2010-10-09 | 2011-02-16 | 东南大学 | Wireless sensor network monitoring system for crop nitrogen |
| CN102026418B (en) * | 2010-11-10 | 2013-04-24 | 中国地质大学（武汉） | Wireless sensor network gateway device with 3G remote transmission |
| CN102026418A (en) * | 2010-11-10 | 2011-04-20 | 中国地质大学（武汉） | Wireless sensor network gateway device with 3G remote transmission |
| CN101984727A (en) * | 2010-11-24 | 2011-03-09 | 中国地质大学（武汉） | Wireless sensor network gateway equipment based on moveable interconnection of bluetooth |
| CN102487536A (en) * | 2010-12-02 | 2012-06-06 | 中国移动通信集团上海有限公司 | Method, device and system for sending downlink control information |
| CN102739290A (en) * | 2012-06-14 | 2012-10-17 | 广东电网公司汕头供电局 | Interactive terminal with power line carrier communication access function |
| CN104995877A (en) * | 2013-01-18 | 2015-10-21 | 三星电子株式会社 | Smart home system using portable device |
| US9948685B2 (en) | 2013-01-18 | 2018-04-17 | Samsung Electronics Co., Ltd. | Smart home system using portable device |
| CN104995877B (en) * | 2013-01-18 | 2018-09-28 | 三星电子株式会社 | Use the intelligent domestic system of portable unit |
| US10218745B2 (en) | 2013-01-18 | 2019-02-26 | Samsung Electronics Co., Ltd. | Smart home system using portable device |
| CN106603430A (en) * | 2016-11-16 | 2017-04-26 | 上海无线电设备研究所 | SOPC-based general data communication interface integration method |
| CN110912810A (en) * | 2019-11-08 | 2020-03-24 | 中国电建集团国际工程有限公司 | Data transmission method, intelligent gateway, computer equipment and storage medium |
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Granted publication date: 20090722 Termination date: 20140411 |