CN104378285A - Energy consumption data collection gateway system based on wireless microcellular networking technology - Google Patents
Energy consumption data collection gateway system based on wireless microcellular networking technology Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses an energy consumption data collection gateway system based on the wireless microcellular networking technology. The energy consumption data collection gateway system comprises a microcontroller module, a memorizer module, a wireless ad hoc network radio frequency transmitting and receiving module, an Ethernet interface module, an RFID module, a buzzer early warning module, a voice communication module and a man-machine interface module. The microcontroller module is the gateway core and achieves data processing and task scheduling control according to a certain algorithm. The data transmitting and receiving of all nodes of a wireless ad hoc network are completed through the wireless ad hoc network radio frequency transmitting and receiving module. An interface in communication with the Internet is provided through the Ethernet interface module. The RFID module provides service for positioning of a data collection device. The gateway local alarm service under the condition of the energy consumption data information and the service of the IP voice conversation between a gateway and a remote server are achieved through the buzzer early warning module and the voice communication module. The energy consumption data collection gateway system is small in gateway device size, light in weight and powerful in function, the protocol transformation function of the self-adaption networking and heterogeneous networks can be reliably achieved, various types of practical auxiliary service are provided, and the comprehensive guarantee is provided for energy consumption data information collection.
Description
Technical field
The present invention relates to the application of wireless ad hoc network technology, particularly relating to a kind of multi-functional heterogeneous network protocol transfer gateway system for realizing based on wireless picocellular networking technology.
Background technology
In numerous wireless network communication technique fields, wireless ad hoc network with its low-power consumption, low cost, arrange net and use flexibly, reliability high, shown good application prospect in industrial enterprise's energy consumption data field of information acquisition.But wireless self-networking does not generally exist with the form of isolated network, but need by certain mode and other external networks interconnected so that numerous remote equipment manages it easily, controls and accesses.This completes communication in heterogeneous network between different type network equipment with regard to requiring a kind of safe and reliable protocol conversion apparatus.
More published patent information also come with some shortcomings at present, be in particular in: the most disposal ability of (1) existing gateway equipment is poor, storage resources is too limited, cannot meet high-speed data process, the requirement of jumbo local data library storage and multi-function service; (2) existing gateway equipment scarcely provides local early warning system, this considerably increases the danger that energy consumption data information energy consumption data information causes major accident.(3) existing gateway equipment scarcely has embedded audio communication system, makes produced on-site personnel cannot set up voice communication whenever and wherever possible with enterprise administrator easily, and energy consumption data information reconciliation work when this occurs to anomalous event is made troubles; (4) existing gateway equipment scarcely possesses local man-machine interface, for the numerous environmental variance of gateway device reset and produced on-site personnel understand energy consumption data information in real time and have manufactured great obstacle;
In view of current energy consumption data acquisition is to the application demand of wireless ad hoc network gateway function diversification, the own characteristic of combining wireless ad-hoc network, the present invention improves the performance of gateway system, add the service function of numerous practicality, make gateway system be more suitable for the demand of industrial enterprise's energy consumption data information gathering.
Summary of the invention
The object of the invention is to the numerous deficiencies overcoming above-mentioned existing similar technique product, ideal solution interconnected between the Internet network at a kind of wireless sensor monitoring network and telesecurity supervision and management center place is provided, and realize numerous utility function, as local early warning, voice communication and Intelligent Human-Machine Interface
The energy consumption data acquisition gateway system based on wireless picocellular networking technology.
In order to achieve the above object, the present invention takes following technical scheme to be:
Memory module: the SDRAM comprising NAND FLASH and 64M of NOR FLASH, 64M of 2M.Wherein NOR FLASH is used for the Boot loader for subsequent use of storage gateway system, can when system crash the normal boot of completion system, and can programming Linux embedded OS and file system again; NAND FLASH is as Large Copacity nonvolatile memory, for depositing linux system Boot loader, operating system nucleus mirror image, read-write yaffs file system, user program and data, for the Effec-tive Function of operating system and application program provides support.
Wireless self-networking radio-frequency receiving-transmitting module: the interface module being gateway device and wireless ad hoc network, adopt the industrial communication frequency range of 470-510MHz and wireless ad hoc network convergent point to carry out twireless radio-frequency communication, and by universal asynchronous serial interface and microcontroller module direct-connected; For providing the air interface of gateway device, the wireless two-way carrying out data with the convergence point of wireless ad hoc network is received and dispatched, and carries out data interaction by generic asynchronous serial mouth and microcontroller simultaneously.
Ethernet interface module: the interface module being gateway device and Internet, is connected with microcontroller module by 16 bit data bus, and is connected with RJ45 interface by network isolation transformer; For providing the communication interface of gateway device and Internet network, ensure wireless ad hoc network gather data can uplink to Internet remote server, the downlink command data of remote server can be received now.
RFID radio-frequency (RF) identification module: be connected by standard serial port with microcontroller module, the industrial communication frequency range of 2.4GHz is adopted to communicate, for work attendance and the fuzzy location of Field Force, the rfid card entering its identification range is detected by active mode, and by automatically identifying to the ID of certain target the individual information obtaining object, and obtain related data.
Buzzer early warning module: adopt piezoelectric type active buzzer, and be connected by universal I/O port with microcontroller module; Report to the police for the gateway this locality under energy consumption data information state.Contrasted by the wireless ad hoc network image data that received by gateway and corresponding system preset alarm critical value, when a certain energy consumption data value of information is abnormal, system drive buzzer works, and reaches local warning function.
Voice communication module: adopt professional audio codec to build the Embedded Audio System of gateway, and be connected by I2S audio-frequency bus with microcontroller module; Communicate for the ip voice between gateway with gateway and between gateway with remote server.Voice communication module can sample, quantize the simulated audio signal of MIC interface input, and is stored in preset buffer memory by the digital audio and video signals obtained, and data cached packing is sent to destination host; The digital audio-frequency data that gateway receives can unpack by the module of voice communication simultaneously, and obtains destination host by DA conversion recovery; The digital audio-frequency data that gateway receives can unpack by the module of voice communication simultaneously, and recovers by DA conversion the original analog audio signal obtaining destination host end, is exported by SPK interface.
Man-machine interface module adopts TFT-LCD module, and is connected with microcontroller module by four-wire resistance type touch screen interface; Service is provided for the man-machine interactive operation for local intelligent, mainly realize the configuration of local ip address and remote server IP address, the on-line testing of network communication state, this locality of wireless ad hoc network environmental data shows in real time, the dialing of voice communication, answer, the operation such as ring display.
Wherein, microcontroller module adopts ATMEL9260 controller, and dominant frequency reaches 400MHz, operational capability is powerful, sensing data reception, forward process reliably can be completed, real-time speech communicating, the multi-task parallel operations such as intelligent human-machine interaction by transplanting built-in Linux operating system.
Wherein, in memory module, NAND FLASH is connected with microcontroller by 8 bit data bus, and NOR FLASH is connected with microcontroller by 16 bit data bus, and SDRAM is connected with microcontroller by 32 bit data bus.
Wherein, wireless self-networking radio-frequency receiving-transmitting module adopts CC111O radio frequency chip, works in the industrial communication frequency range of 470-510MHz.Because CC111O and ATMEL9260 operating voltage is all 3.3V, direct-connected by 3-line serial interface RX, TX, GND between wireless self-networking radio-frequency receiving-transmitting module and microcontroller module.
Wherein, Ethernet interface module adopts CS8900 as network control chip, is connected, and is connected with RJ45 interface by GTS FC-518LS network isolation transformer by 16 bit data bus with microcontroller module.
Wherein, RFID radio-frequency (RF) identification module adopts the maturation work level module based on NRF2401, the frequency range of 2.4GHz is used to communicate, coverage 0-50 rice, the UART Universal Asynchronous Receiver Transmitter UART2 of ATMEL9260 realizes the conversion of TTL/CMOS level to TIA/EIA-232-F level by MAX3232 chip, for RFID radio-frequency (RF) identification module provides standard serial port to access.
Wherein, buzzer early warning module adopts piezoelectric type active buzzer HYD-2319, and is connected with the universal I/O port GPBO of microcontroller.
Wherein, voice communication module adopts UDA1341 audio codec to build the Embedded Audio System of gateway device, and is connected by I2S audio-frequency bus with microcontroller module.
Wherein, man-machine interface module adopts TFT-LCD module, is connected, utilizes four-wire resistance type touch screen to provide human-computer interaction interface by four-wire resistance type touch screen interface with microcontroller.
Compare existing similar technique product, the present invention has following beneficial effect:
(1) gateway device central controller of the present invention adopts ATMEL9260 chip, dominant frequency is up to 400MHz, disposal ability is very powerful, built-in Linux operating system can be run, for the multi-task parallel operation of gateway device and the effective depth of system resource provide reliable and stable hardware to ensure;
(2) gateway device storage resources of the present invention enriches, the NAND FLASH of 64M provides jumbo memory space, not only can deposit a large number of users program, data, and the longer-term storage of wireless ad hoc network data can be ensured, the SDRAM of 64M, then for gateway device provides enough memory headrooms, makes the performance of gateway device can not be affected because of the concurrence performance of multitask;
(3) gateway device of the present invention introduces local warning function, can judge whether energy consumption data occurs energy consumption data information in real time according to the data of wireless ad hoc network collection, and concurrent this is according to determining whether drive buzzer work by (SuSE) Linux OS.By local warning function, the very first time that Field Force can occur in energy consumption data information energy consumption data information is notified, and this provides further guarantee for enterprise normally produces;
(4) gateway device of the present invention has the function with other gateway devices and remote server voice call, the embedded audio communication system built by audio codec, can ensure that any time Field Force sets up voice communication with enterprise administrator easily, provide another layer guarantee for enterprise normally produces;
(5) gateway device of the present invention has the man-machine interface of intelligence, achieve the integrated management of the various function of gateway device, pass through Man Machine Interface, local ip address, remote server IP address can be configured easily, the energy consumption data value of information that real-time display sensor network gathers, and can dial to voice communication, answer, the operation such as to hang up, which avoid and adopt large-scale PC equipment to operate brought inconvenience by hyper terminal one by one to gateway device under normal circumstances.
Accompanying drawing explanation
Fig. 1 is hardware principle block diagram of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the invention will be further described, understands the technological thought of application claims protection so that clearer.
Target due to native system is that the corresponding datas such as the numerous energy consumption data information (as electricity, water, steam, compressed air and combustion oil etc.) needed for industrial enterprise's production and collecting device locating information are carried out Real-Time Monitoring, and periodically to remote server transmission, ensure that enterprise administrator can be understood produced on-site situation at any time by access services device and can be made for energy consumption data message event and fast and effeciently adjust.Overall system framework can be divided into three parts, is on-site wireless ad-hoc network network data acquisition part, gateway protocol conversion portion and remote monitoring server part respectively.Wireless ad hoc network is positioned at the bottom of total system, by one group of sensor terminal node and remote monitoring server part.Wireless ad hoc network is positioned at the bottom of whole system, be made up of in an ad-hoc fashion one group of sensor terminal node, be distributed in the sensing region in produced on-site tunnel, can perception collaboratively, the acquisition and processing network coverage geographic area in the information of perceptive object.Gateway is core one ring that supervisory control system is normally run, and is the key component realizing heterogeneous network protocol conversion, mainly realizes two functions:
to the convergence of wireless ad hoc network data, process and storage;
the data interaction of existing Internet remote server.In addition, gateway also has other additional functions, enhances hommization and the practicality of gateway, such as adopts RFID radio-frequency module to realize the location of collection in worksite equipment, gateway and other gateways and the real-time speech communicating between gateway and remote server, local man-machine interaction etc.Remote monitoring server is positioned at the superiors of whole system, provide powerful data-handling capacity and storage capacity, by accessing this server, administrative staff can the various energy consumption data information of real-time query produced on-site, transfer the historical record of system storage, send command information, control Wireless ad hoc networks nodes ' behavior, carry out network management.
As shown in Figure 1, gateway system mainly comprises microcontroller module, memory module, wireless self-networking radio-frequency receiving-transmitting module, Ethernet interface module, RFID radio-frequency (RF) identification module, buzzer early warning module, voice communication module, and man-machine interface module.Wherein, microcontroller module is the core module of gateway device, is connected by different interface circuits from other modules, to control the collaborative work of different module and to process related data.Microcontroller adopts ATMEL9260 embedded chip, this controller is based on ARM920T kernel, include high-performance 32-bit RISC controller, dominant frequency reaches 400MHz, disposal ability is powerful, by transplanting built-in Linux operating system, efficiently solve the radio-frequency receiving-transmitting of gateway and wireless ad hoc network, with wired duplex communication of Internet network, local real-time early warning, and the scheduling problem that performs of the Multi-task Concurrency such as remote server real-time speech communicating.
In memory module of the present invention, NOR FLASH adopts Am29LV160D, and memory capacity is 2M, is connected with microcontroller by 16 bit data bus.Owing to adopting 16 bit data patterns, the address bus of NOR FLASH offsets one and is connected with microcontroller, i.e. ADDR (n) pin of NOR FLASH and the SA(n+1 of microcontroller) pin is connected, and wherein the span of n is 0 ~ 19.NOR FLASH as the reserved resources of gateway, for the Boot loader for subsequent use of storage gateway system.NOR FLASH also can adopt K9F1208DOA, and memory capacity is 64M, is connected with microcontroller by 8 bit data bus, is directly controlled by the NAND FLASH controller of microcontroller.NAND FLASH is the nonvolatile memory of gateway device, is mainly used in depositing linux system Boot loader, operating system nucleus mirror image, read-write yaffs file system, the content such as user application and data.SDRAM can adopt HY57V561620, the memory capacity of every sheet HY57V561620 is 32M, specification is 4Banks × 4M × 16Bits, consists of the SDRAM of 64M the data/address bus of two chip blocks mode connected in series, and is connected with microcontroller by 32 bit data bus.Owing to adopting 32 bit data patterns, the address bus of SDRAM offsets two and is connected with microcontroller, and wherein AO ~ A12 is row address line, and AO ~ A8 concurrent multiplexing is column address conductor, and BAO and BAI is that Bank selects line.SDRAM is the inherence of gateway device, for the Effec-tive Function of operating system and application program provides support.
Wireless self-networking radio-frequency receiving-transmitting module of the present invention and Ethernet interface module have been protocol conversions, ensure the key that bottom sensing data transmits in heterogeneous network.
Wireless self-networking radio-frequency receiving-transmitting module adopts radio frequency chip, work in the industrial communication frequency range of 470-510MHz, directly communicate with the transmitting convergent node of wireless ad hoc network, the image data be responsible for underlying periodic sends carries out wireless receiving, wherein transmitting convergent node is responsible for reception to each terminal node image data of wireless ad hoc network, arrangement, and according to the form packing data of predetermined protocol defined, finally by the wireless self-networking radio-frequency receiving-transmitting module forwarding data of wireless mode to gateway.Wireless self-networking radio-frequency receiving-transmitting module is connected with adopting serial interface mode between microcontroller module, microcontroller module is resolved data, is processed after the sensing data receiving wireless self-networking radio-frequency receiving-transmitting module, and by result stored in buffer memory, send to Ethernet interface module.
Ethernet interface module adopts ethernet controller CS8900, and its inside is integrated with the on-chip memory of 4K byte, the transceiving filter of 10Base-T, and provides 8 and 16 two kinds of data-interfaces.In the present invention, Ethernet interface module is connected with the data/address bus of 16 by the address bus of 20 with microcontroller module, is then connected by GTSFC-518LS network isolation transformer and RJ45 interface with Internet.Ethernet interface module is mainly directly sent to Internet remote server to the bottom sensing data merged through microcontroller module with Standard IP data packet format, also the Internet server instruction received is sent to microcontroller module by data/address bus after unpacking to perform simultaneously, except this is with place, Ethernet interface module provides hardware supports also to other functions such as ip voice communication etc. of gateway.
RFID radio-frequency (RF) identification module of the present invention adopts the mature industry level module based on NRF2401, uses the frequency range of 2.4GHz to communicate, coverage 0-50 rice.For ease of application extension, RFID radio-frequency (RF) identification module and microcontroller module adopt serial ports as standard interface.The UART Universal Asynchronous Receiver Transmitter UART2 of microcontroller module realizes the conversion of TTL/CMOS level to TIA/EIA-232-F level by MAX3232 chip, thus provides standard serial port to access for RFID radio-frequency (RF) identification module.
Buzzer early warning module of the present invention adopts piezoelectric type active buzzer HYD-2319, and is connected with the universal I/O port GPBO of microcontroller module.After gateway receives bottom sensing data, by contrasting with default various warning critical value in system, judge that whether each energy consumption data information is abnormal.If there is the situation of energy consumption data Information abnormity, system can drive buzzer work by being set high by GPBO pin, and warning local scene staff processes.
Voice communication module of the present invention adopts UDA1341 audio codec, is connected by I2S audio-frequency bus with microcontroller module.Wherein BCK is serial clock, each data of corresponding digital audio; WS is frame clock, for the data of switching right and left sound channel; SDATAO and SDATAI is serial data, is the voice data represented for the complement of two's two's complement, and these three kinds of signals are cores of voice communication module and microcontroller module interface circuit.Voice communication module has MIC and SPK interface, and it can be sampled, quantize the simulated audio signal of MIC interface input, and is stored in preset buffer memory by the digital audio and video signals obtained, and data cached packing is sent to destination host; The digital audio-frequency data that gateway receives can be unpacked simultaneously, recover through DA conversion the original analog audio signal obtaining destination host end, exported by SPK interface.
Man-machine interface module of the present invention adopts 3.5 inches of TFT-LCD modules, is connected with microcontroller by four-wire resistance type touch screen interface.TSXM, TSXP, TSYM and TSYP are four-wire resistance type touch screen interface, are mainly used in determining touch point coordinate.In addition for convenience of the expanded application of other types touch-screen, interface circuit additionally provides 3.3V and 5V power supply selection function, can according to touch-screen supply voltage selecting properly wire jumper connected mode.Man-machine interface module plays very important role in gateway system, the configuration of local ip address can be realized, the setting of remote server IP address, the on-line testing of network communication state, this locality of wireless ad hoc network environmental data shows in real time, the dialing of voice communication, answer, ring display etc., this greatly reduces large-scale PC equipment and arranges by hyper terminal the inconvenience that gateway brings, and understands energy consumption data situation at any time also to Field Force simultaneously and provides support.
Voice communication module of the present invention exists, with heterogeneous network data interaction concurrence performance as independent process in gateway system.After program starts, create watcher thread and monitor network signal, and the operation such as acknowledges requests, refusing incoming call can be performed according to incoming call requests signaling; Meanwhile, program also can send session demand signalling at any time, and request object terminal communicates.Once gateway and object terminal set up UDP communication link, then can receive the VoP of long-range transmission, and resolve stored in buffer memory, cache information be write DSP audio frequency apparatus file, then can export voice messaging from SPK interface, reach and answer object; Meanwhile, the voice messaging of National Officer also by MIC interface stored in DSP audio frequency apparatus file, can obtain voice data information by reading this file, can send voice messaging to object terminal after packing by udp protocol.Except this is with place, program is also storehouse by inquiry local voice communicating data, obtains history incoming calls record and goes electrographic recording.
Heterogeneous network data interactive method of the present invention is specially, program performs following step after starting successively: (1) arranges serial ports, communicate with wireless self-networking radio-frequency receiving-transmitting module and RFID radio-frequency (RF) identification module for microcontroller module, mainly comprise the setting of serial port baud rate, data bit, position of rest, parity check bit, serial ports maximum reading time, the maximum reading length of serial ports; (2) initialization network, communicates with Ethernet interface module for microcontroller module, mainly comprises setting network communication port, arranges the operations such as remote server IP address; (3) Connection Service, sets up UDP by transmission connection request with remote server and is connected; (4) by Fork function creation subprocess, subprocess is copying parent process, the two concurrent working; (5) parent process monitors serial ports, the bottom data that real-time reception wireless ad hoc network sends, and carry out validity check, valid data are calculated, classifies, packing more afterwards is sent to remote server, in this process once find that the energy consumption data value of information is abnormal, carry out this locality immediately and report to the police; (6) subprocess monitors the network port, and carry out real time communication with remote server, after receiving the command information of long-range transmission, carry out instructions parse, and perform corresponding operating, real-time management personnel are to the Long-distance Control of gateway.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection range of the claims in the present invention.
Claims (3)
1. the energy consumption data acquisition gateway system based on wireless picocellular networking technology, it is characterized in that, comprise microcontroller module, memory module, wireless self-networking radio-frequency receiving-transmitting module, Ethernet interface module, RFID radio-frequency (RF) identification module, buzzer early warning module, voice communication module, and man-machine interface module;
Described Ying controller module is the core module of gateway device, is connected by different interface circuits from other modules, to control the collaborative work of different module and to process related data; Described microcontroller adopts ATMEL9260 embedded chip, this controller is based on ARM920T kernel, include high-performance 32-bit RISC controller, dominant frequency reaches 400MHz, disposal ability is powerful, by transplanting embedded L inux operating system, efficiently solve the radio-frequency receiving-transmitting of gateway and wireless ad hoc network, with wired duplex communication of Internet network, local real-time early warning, the scheduling problem that performs with the Multi-task Concurrency of remote server real-time speech communicating;
Described memory module comprises the NAND FLASH of 64M, the synchronous DRAM SDRAM of NOR FLASD and 64M of 2M, and is connected with microcontroller module by data/address bus;
Described wireless self-networking radio-frequency receiving-transmitting module is the interface module of gateway device and wireless ad hoc network, adopt the industrial communication frequency range of 470-510MHz and wireless ad hoc network aggregation node to carry out twireless radio-frequency communication, and by universal asynchronous serial interface and microcontroller module direct-connected;
Described Ethernet interface module is the interface module of gateway device and Internet, is connected with microcontroller module by 16 bit data bus, and is connected with RJ45 interface by network isolation transformer; For providing the communication interface of gateway device and Internet network, ensure data that wireless ad hoc network gathers can uplink to Internet remote server, the downlink command data of remote server can be received simultaneously;
Described RFID radio-frequency (RF) identification module is connected by standard serial port with microcontroller module, adopts the industrial communication frequency range of 2.4GHZ to communicate;
Described buzzer early warning module adopts piezoelectric type active buzzer, and is connected by universal I/O port with microcontroller module;
Described voice communication module adopts professional audio codec to build the Embedded Audio System of gateway, and is connected by I2S audio-frequency bus with microcontroller module;
Described man-machine interface module adopts TFT-LCD module, and is connected with microcontroller module by four-wire resistance type touch screen interface.
2. the energy consumption data acquisition gateway system based on wireless picocellular networking technology according to claim 1, it is characterized in that, NAND FLASH in described memory module is connected with microcontroller module by 8 bit data bus, as Large Copacity nonvolatile memory, for depositing linux system Boot loader, operating system nucleus mirror image, read-write yaffs file system, user application and data; Described SDRAM is connected with microcontroller module by 32 bit data bus, and load operating operating system, user application and data after starting for system, for the Effec-tive Function of operating system and application program provides support.
3. the energy consumption data acquisition gateway system based on wireless picocellular networking technology according to claim 1, it is characterized in that, wireless self-networking radio-frequency receiving-transmitting module provides the air interface of gateway device, the wireless two-way carrying out data with the convergence node of wireless ad hoc network is received and dispatched, and carries out data interaction by generic asynchronous serial mouth and microcontroller simultaneously.
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