CN202331758U - Voice data collection and transmission system based on GPRS (General Packet Radio Service) wireless network - Google Patents
Voice data collection and transmission system based on GPRS (General Packet Radio Service) wireless network Download PDFInfo
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- CN202331758U CN202331758U CN2011204512852U CN201120451285U CN202331758U CN 202331758 U CN202331758 U CN 202331758U CN 2011204512852 U CN2011204512852 U CN 2011204512852U CN 201120451285 U CN201120451285 U CN 201120451285U CN 202331758 U CN202331758 U CN 202331758U
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Abstract
The utility model discloses a voice data collection and transmission system based on a GPRS (General Packet Radio Service) wireless network, belonging to the field of data transmission. The voice data collection and transmission system comprises a GPRS wireless network data collection and transmission subsystem and a server end data receiving and storing subsystem, wherein the GPRS wireless network data collection and transmission subsystem comprises a voice collection and conditioning module, a single chip microcomputer control system, a GPRS wireless receiving and sending module and a power supply module which are connected by circuits; the GPRS wireless receiving and sending module is a GSM (Global System for Mobile Communications)/GPRS module with an embedded TCP/IP (Transmission Control Protocol/Internet Protocol) protocol stack; and the server end data receiving and storing subsystem is composed of a server and embedded GPRS receiving equipment. Compared with the prior art, the voice data collection and transmission system has the advantages that the construction period is short and the cost is low, so that the voice data collection and transmission system based on the GPRS wireless network is particularly suitable for wild use environments with poor conditions and cross-region application; and the transmission speed of the GPRS wireless transmission data is high, the transmission capacity is large and the cost is low.
Description
Technical field
The utility model relates to a kind of data collection and transfering system, particularly a kind of voice data acquiring and transmission system that is applicable to based on the GPRS wireless network.
Background technology
China belongs to developing country, and the urban traffic noise problem still ranks first, but along with expanding economy, the airport is constantly extended, and flight is more and more intensive, and the airport noise problem also day by day highlights.1996, China issued and implemented " pollution from environmental noise is prevented therapy ", and this method is stipulated respectively to the control that man-made noise pollution, construction noise pollution pollution, traffic noise pollution and noise of social activities pollute.The research of states such as America and Europe aspect noise control wants Zao than China's starting, and it is advanced that technology is wanted, and at present, external many companies have airport noise Monitoring and Controlling product, but service condition has restriction to a certain degree.Wired mode that adopts arranged, also have and adopt wireless mode, dedicated system is arranged, the application system of on general-purpose system, setting up is also arranged, advantage and defective are respectively arranged.But, the domestic airport noise monitor control system product that does not also have moulding at present.External dedicated data transmission system is divided into wired dedicated system and wireless private system.Wired dedicated system needs within the specific limits to need laying-out between place and the data center of image data at all, and quantities is huge, expensive, and therefore wired dedicated system is not suitable for the transmission of wide-area data.Wireless transmitting-receiving equipments will be installed at each data collection point by the wireless private system, carries out data transmission with the wireless transmitting-receiving equipments of data center, and this mode has been avoided the laying of circuit; But the dedicated frequency that needs wireless transmission; At present the frequency of wireless transmission is a scarce resource, generally speaking, basic application less than; Therefore, the private radio transmission system is also inadvisable.
The utility model content
The technical assignment of the utility model is the deficiency to above prior art, and a kind of voice data acquiring and transmission system based on the GPRS wireless network is provided.
The technical scheme that the utility model solves its technical matters is: a kind of voice data acquiring and transmission system based on the GPRS wireless network; It is characterized in that: comprise that GPRS wireless network data acquisition transmission subsystem and server end data receive storage subsystem, wherein: GPRS wireless network data acquisition transmission subsystem comprises sound collection conditioning module, single-chip computer control system, GPRS radio receiving transmitting module and the power module that circuit links to each other; Described sound collection conditioning module comprises noise data inductor and the signal conditioner that circuit links to each other, and signal conditioner comprises the LPF amplifying circuit; What described GPRS radio receiving transmitting module adopted is the GSM/GPRS module of embedded ICP/IP protocol stack; Server end Data Receiving storage subsystem is made up of a station server and embedded GPRS receiving equipment.
Above-mentioned power module comprises adjustable linear voltage regulator LM2941CSW.
Above-mentioned noise data inductor is a microphone.
Above-mentioned single-chip computer control system is the C8051F020 single-chip microcomputer.
Above-mentioned GPRS radio receiving transmitting module is the MC55 module.
Compared with prior art, the utlity model has following outstanding beneficial effect:
1, the GPRS wireless transmission method provides a kind of approach that can in wide region, realize data transmission; The airport noise data that adopted grouping service wireless GPRS to collect in real time pass to the airport noise information processing centre through GPRS network; The monitoring information real-time processing software is through carrying out finishing analysis to gathering the data of coming; Stay indoors and can carry out data acquisition to airport noise data monitoring point, and be all weather operations, reliability is high.
2, for the geographic position relatively disperse, remote, natural conditions are relatively poor; Adopt wire transmission need set up special line; Under the too high situation of cost; Adopt the GPRS wireless transmission because of networking is flexible rapidly, the construction period is short, cost is low, is particularly suitable for the open-air environment for use of condition difference and trans-regional application.
3, GPRS wirelessly transmitting data transfer rate is high, and transmission capacity is big, and within 10Kbps, the GPRS actual data transfer rate can satisfy the demand of native system message transmission rate to information gathering point requirement message transmission rate fully about 40Kbps at present greatly.
4, GPRS wireless transmission communication cost is low.Adopt traditional wired mode to set up the information acquisition transmission system, must rent special line or telephone wire connects.Because the noise data collection point must keep connection state at any time with the center, and each data volume of sending is very little, and the line resource utilization factor is very low, and on average the use of every month circuit fee of each information gathering point is 800～1200 yuan.And if adopt the GPRS communication mode because GPRS adopts the mode of chargeing by data traffic, resource utilization is high, a month communication cost will be within 200 yuan.
5, have excellent real-time response and processing power.Compare with Short Message Service, because GPRS has the real-time online characteristic, system does not have time delay, can well satisfy the requirement of system to data collection and transmission real-time.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the utility model.
Fig. 2 is the GPRS wireless network data acquisition transmission subsystem structural representation block diagram of the utility model.
Fig. 3 is the GPRS wireless network data acquisition transmission subsystem power module feed circuit design of the utility model.
Fig. 4 is the voice signal LPF amplification circuit diagram of the utility model.
Fig. 5 is that the MC55 IGT pin of the utility model starts sequential chart.
Fig. 6 is the MC55 start-up circuit design drawing of the utility model.
Fig. 7 is the GPRS wireless network data acquisition transmission subsystem data flow figure of the utility model.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model is further specified.
The GPRS net is specifically designed to the transmission data, has characteristics such as always online transmitting burst property data, and the characteristics of the restriction of the geographical conditions of not receiving are equally also arranged, as long as the place of mobile phone signal is arranged, all can carry out the transmitting-receiving of data.
As shown in Figure 1, the utility model comprises that GPRS wireless network data acquisition transmission subsystem (GPRS access device 1 ~ GPRS access device n) and server end data receive storage subsystem (server).
As shown in Figure 2, GPRS wireless network data acquisition transmission subsystem function is that noise data is sent to GPRS network.Comprise sound collection conditioning module, single-chip computer control system, GPRS radio receiving transmitting module and power module that circuit links to each other.
In the design of power module; Adopted adjustable linear voltage regulator LM2941CSW, input voltage is 5V-20V, and output voltage is 4.2V; Maximum output current is 1A; Therefore will satisfy the electric current demand of MC55, must add enough big electric capacity (680 μ F*2) has powerful electric current output when guaranteeing sending time slots, and the circuit diagram design is as shown in Figure 3.
The sound collection conditioning module comprises noise data inductor and signal conditioner, and the noise data inductor is high sensitivity MIC, converts noise intensity into electric signal; Signal conditioner is adjusted to the inductor electrical signal converted in the analog-to-digital scope of A/D, comprises the LPF amplifying circuit, and the amplifier that is adopted is MC33204DR2, and institute's designed circuit is as shown in Figure 4.
Single-chip computer control system carries out analog to digital conversion, and the data after the conversion are passed to the GPRS wireless data transceiver module, and the each several part coordinated operation of control GPRS network access device; The C8051F series monolithic is fully-integrated mixed-signal system level chip, has the CIP-51 microcontroller kernel compatible with 8051, adopts pipeline organization, and the one-cycle instruction travelling speed is 8051 12 times, and full instruction set travelling speed is original 9.5 times.Wherein C8051F020 is more comprehensive with its function, and the characteristics more widely used become the mainstream product of C8051F, and its ratio of performance to price also has competitive power in application at present.That present embodiment is selected for use is C8051F020; C8051F020 is a complete single-chip microcomputer SOC(system on a chip) (SOC); Can be used as a closed-loop measuring control system; It is the center with 8051 kernels, links to each other with the JTAG logical circuit through clock system on SFR bus, external data memory bus, system clock line, reset line etc. and 64KB flash memory, 4KB XRAM, digital function module (like UART, SPI, timer etc.), analog functional module (like comparer, AD, DA etc.), the sheet.Use C8051F020 to develop, can system with better function, that performance is more stable, can also shorten the construction cycle of project simultaneously, reduce the debugging difficulty of circuit significantly with code still less, the circuit version design structure of more simplifying.After the level signal of wherein being come out by MIC gets into low-pass filter circuit,, realized the two-stage filter amplification circuit through amplifier MC33204DR2; The AIN0.0 pin that connects C8051F020 at last; Carry out the AD sampling, the resolution of sampling is 12, and sampling rate is 8K.
The integrated GPRS agreement of GPRS radio receiving transmitting module, the data that single-chip microcomputer is given send by the GPRS agreement.That the GPRS radio receiving transmitting module adopts is the GSM/GPRS module MC55 of embedded ICP/IP protocol stack, is three minimum frequency modules of size on the current market, has the characteristics of high reliability and high stability.The MC55 module has the SIM interface of 3V, can directly connect domestic general SIM.Single-chip microcomputer C8051F020 external clock adopts the 22118400Hz crystal; Adopt P0.0 and P0.1 Tx and Rx end as UART 0; Link to each other with the MC55 module respectively and carry out communication, and expanded the XRAM (XRAM adopts IS62LV1024LL) of 128KB and the EEPROM (EEPROM adopts AT24C04) of a 4K.MC55 /the IGT pin is used for starting the work of MC55 module, after the MC55 module powers on, must come guidance system to get into duty through/IGT; The startup method is: after system powers on; / IGT is last must to have a drop-down pulse and more than the essential lasting 100ms, module could normally start, and this moment, the module pilot lamp began short flicker; Expression begins to seek network, and then attached on the GSM network.After the normal startup of MC55 module, the level of pin VDD can rise to 2.9V from 0V, therefore can judge whether MC55 normally starts through the voltage change of observing VDD.The MC55 module starts sequential chart and circuit design drawing such as Fig. 5 and shown in Figure 6.
The communicating circuit design of MC55 and single-chip microcomputer C8051F020: Asynchronous Serial Interface is that single-chip microcomputer is to module sending controling instruction (AT order); And the interface of read module state; The MC55 module has 9 complete pin asynchronous serial ports, can directly link to each other with the serial ports of single-chip microcomputer.Because the serial ports of the single-chip microcomputer C8051F020 of present embodiment is not 9 complete pin asynchronous serial ports; Be two lines; Therefore only need two lines of TXD (P0.0) and RXD (P0.1) be connected, the also common function of energy control module realization, as make a phone call, note, networking etc.
As shown in Figure 7; The flow direction of data is: behind the level signal entering signal conditioner that MIC gathers; Through the voltage signal that amplifies; Get into single-chip microcomputer C8051F020 at last and carry out the AD sampling, the digital signal data after the sampling gets into GPRS radio receiving transmitting module MC55 via UART and sends on the GPRS network.Server end receives this packet, and the flow direction of server transmission data in contrast.GPRS wireless network data acquisition transmission subsystem utilizes the GPRS Radio Transmission Technology to realize the real-time Transmission of airport noise, can the signal that collect be carried out statistical study and processing in data center, and then for controlling airport noise theoretic support is provided.Can in the scope of radius of several kilometers around the airport, gather, to obtain the noise intensity value of different distance and position.
The major function of server end Data Receiving storage subsystem be from GPRS network receive data and with data storage to database; For the ease of observing voice data intuitively, when receiving, the mode of received data with broken line graph dynamically shown.Server end Data Receiving storage subsystem is made up of a station server and embedded GPRS receiving equipment, and server inserts GPRS network through the connection through embedded GPRS access device.Be stored in the database on backstage after the Data Receiving that this part also will be sent network.Program realizes and can adopt the Socket programming based on .NET Framework3.5 platform (VB2008), utilizes multi-thread mechanism, increases substantially software efficiency, and database adopts SQL Server2005.
Need to prove; The particular of the utility model is described in detail the utility model; For a person skilled in the art, in the various conspicuous change of under the situation of spirit that does not deviate from the utility model and scope it being carried out all within the protection domain at the utility model.
Claims (5)
1. voice data acquiring and transmission system based on the GPRS wireless network; It is characterized in that: comprise that GPRS wireless network data acquisition transmission subsystem and server end data receive storage subsystem, wherein: GPRS wireless network data acquisition transmission subsystem comprises sound collection conditioning module, single-chip computer control system, GPRS radio receiving transmitting module and the power module that circuit links to each other; Described sound collection conditioning module comprises noise data inductor and the signal conditioner that circuit links to each other, and signal conditioner comprises the LPF amplifying circuit; What described GPRS radio receiving transmitting module adopted is the GSM/GPRS module of embedded ICP/IP protocol stack; Server end Data Receiving storage subsystem is made up of a station server and embedded GPRS receiving equipment.
2. the voice data acquiring and transmission system based on the GPRS wireless network according to claim 1 is characterized in that described power module comprises adjustable linear voltage regulator LM2941CSW.
3. the voice data acquiring and transmission system based on the GPRS wireless network according to claim 1 is characterized in that described noise data inductor is a microphone.
4. the voice data acquiring and transmission system based on the GPRS wireless network according to claim 1 is characterized in that described single-chip computer control system is the C8051F020 single-chip microcomputer.
5. the voice data acquiring and transmission system based on the GPRS wireless network according to claim 1 is characterized in that described GPRS radio receiving transmitting module is the MC55 module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204512852U CN202331758U (en) | 2011-11-15 | 2011-11-15 | Voice data collection and transmission system based on GPRS (General Packet Radio Service) wireless network |
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| CN2011204512852U CN202331758U (en) | 2011-11-15 | 2011-11-15 | Voice data collection and transmission system based on GPRS (General Packet Radio Service) wireless network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105226A (en) * | 2013-04-10 | 2014-10-15 | 四川鹏翔电子科技有限责任公司 | Data transmission system based on GPRS |
| CN104394189A (en) * | 2014-10-20 | 2015-03-04 | 中国运载火箭技术研究院 | Wide-coverage high-precision hard-real-time distributed environment parameter detection system |
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2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105226A (en) * | 2013-04-10 | 2014-10-15 | 四川鹏翔电子科技有限责任公司 | Data transmission system based on GPRS |
| CN104394189A (en) * | 2014-10-20 | 2015-03-04 | 中国运载火箭技术研究院 | Wide-coverage high-precision hard-real-time distributed environment parameter detection system |
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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: 20120711 Termination date: 20121115 |