CN102568173A - Wireless networking air quality monitoring system based on RS485 bus and general packet radio service (GPRS) network - Google Patents
Wireless networking air quality monitoring system based on RS485 bus and general packet radio service (GPRS) network Download PDFInfo
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- CN102568173A CN102568173A CN 201010596196 CN201010596196A CN102568173A CN 102568173 A CN102568173 A CN 102568173A CN 201010596196 CN201010596196 CN 201010596196 CN 201010596196 A CN201010596196 A CN 201010596196A CN 102568173 A CN102568173 A CN 102568173A
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Abstract
The invention discloses a wireless networking air quality monitoring system based on an RS485 bus and a general packet radio service (GPRS) network. The wireless networking air quality monitoring system comprises a monitoring center computer pre-installed with monitoring software, main data acquisition equipment, a plurality of air quality monitoring subsystems connected with the main data acquisition equipment through the RS485 bus, and a wireless communication network for realizing wireless data transmission between the monitoring center computer and the main data acquisition equipment, wherein the wireless communication network consists of a GPRS wireless communication module I connected with the monitoring center computer and a GPRS wireless communication module II connected with the main data acquisition equipment; and mutual data transmission between the GPRS wireless communication module I and the GPRS wireless communication module II is realized through the GPRS network. The wireless networking air quality monitoring system has a rational design, and is convenient to use and operate; the arrangement amount of the main data acquisition equipment on the site is reduced, the site operation difficulty is reduced, labor and resource costs are saved, and the intelligentization degree is high; and furthermore, wireless networking can be realized, and air quality in a large range can be monitored in a plurality of directions.
Description
Technical field
The invention belongs to the air quality monitoring technical field, especially relate to a kind of unlimited networking air quality monitoring system based on RS485 bus and GPRS network.
Background technology
Along with the attention of present people, to the increasing of environmental index monitoring dynamics to environment; The scene needs the increase of all kinds amount number of collection; Sensor will be a huge quantity, how the data of sensor are gathered accurately and are a very important link, the sensor of disposing in the scene often disperses very much; Laying the interval of sensing station does not wait from tens meters to hundreds of rice; The form simulation amount and the digital quantity of these sensor outputs do not wait, and receive the requirement of industrial site particular surroundings, and the distance of the collection range sensor position of many signals all has clear and definite required distance; And for measuring accurately; A collecting device often can not satisfy on-the-spot requirement, so possibly dispose two or more collecting device at the scene, so not only causes the increase of cost; Most importantly the difference of each equipment acquisition precision causes the error of image data after disposing a large amount of collecting devices, like this with regard to very difficult each corresponding environmental index that monitors accurately.The position of the transducer arrangements that has in addition is relatively harsh, as is deployed in sensor on the chimney and will safeguards to construct at the scene with corresponding setting to it and be confronted with numerous difficulties, and the work difficulty that reduces the site operation personnel is reality very also.
Summary of the invention
Technical matters to be solved by this invention is to above-mentioned deficiency of the prior art, and a kind of unlimited networking air quality monitoring system based on RS485 bus and GPRS network is provided, and it is reasonable in design; Use simple operation, reduced the deployment amount of on-site data gathering main equipment, reduced the difficulty of execute-in-place; Cost uses manpower and material resources sparingly; Intelligent degree is high, can realize wireless networking, and the air quality is on a large scale carried out multi-faceted monitoring.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of unlimited networking air quality monitoring system based on RS485 bus and GPRS network is characterized in that: comprise a plurality of air quality monitoring subsystems of pre-installing Surveillance center's computing machine that monitoring software is arranged, data acquisition main equipment, joining through RS485 bus and data acquisition main equipment and be used to realize Surveillance center's computing machine and the data acquisition main equipment between data wireless transmission wireless communication network; Said cordless communication network constitutes by the GPRS wireless communication module one that joins with the Surveillance center computing machine with GPRS wireless communication module two that the data acquisition main equipment joins, realizes that through GPRS network data pass mutually between said GPRS wireless communication module one and the GPRS wireless communication module two.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network; It is characterized in that: the power module that said data acquisition main equipment comprises controller and the storer that joins with controller, LCD and audible-visual annunciator and is respectively controller, storer, LCD and audible-visual annunciator power supply; Said power module joins with controller, storer, LCD and audible-visual annunciator respectively, and said GPRS wireless communication module two joins with controller.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network; It is characterized in that: said air quality monitoring subsystem comprises power supply and the processor to system's power supply; The input termination signal time-sharing multiplex circuit of said processor; The input termination signals collecting and the modulate circuit of said signal time-sharing multiplex circuit; Said signals collecting and modulate circuit are made up of analog acquisition and modulate circuit, digital data acquisition and modulate circuit and switch acquisition and modulate circuit; The input termination output signal of said analog acquisition and modulate circuit is the sensor groups one of analog quantity; The input termination output signal of said digital data acquisition and modulate circuit is the sensor groups two of digital quantity; The input termination output signal of said switch acquisition and modulate circuit is the sensor groups three of switching value; The output termination RS485 bus transceiver of said processor, the output termination of said RS485 bus transceiver are used for the RS485 bus isolating transformer that joins with the RS485 bus, and said power supply joins with signals collecting and modulate circuit, signal time-sharing multiplex circuit, processor, RS485 bus transceiver and RS 485 bus isolating transformers respectively.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network, it is characterized in that: said controller is the ARM7TDMI-S kernel microprocessor LPC2292 of Philips company.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network, it is characterized in that: said power supply is general dry battery, Li-Ion rechargeable battery, nickel-hydrogen chargeable cell or solar cell.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network, it is characterized in that: said processor is single-chip microcomputer MSP430F169.
Above-mentioned unlimited networking air quality monitoring system based on RS485 bus and GPRS network, it is characterized in that: said RS485 bus transceiver is chip SN751177N.
The present invention compared with prior art has the following advantages:
1, application of RS 485 buses of the present invention and GPRS network have been realized the unlimited networking technology of air quality monitoring system; Through optimal design to the air quality monitoring subsystem; The quantity of on-site data gathering main equipment when effectively having reduced the RS485 networking; Reduce site operation personnel's work difficulty, and can improve the acquisition precision of system.
2, the present invention can improve in the industrial site owing to disturb the problem of caused data transmission distance; High-transmission distance can be 1200 meters; And adopt GPRS network to realize the data communication of on-site data gathering main equipment and Surveillance center's intercomputer, it is high to have improved communication efficiency and intelligent degree.
3, the present invention can solve the acquisition time of a data collection of all amounts main equipment in the zone; Data are gathered main equipment can connect 128 Detection of Air Quality subsystems through the RS485 bus at most, can also solve in a plurality of zones a plurality of data acquisition main equipments to the connection of Surveillance center's computing machine.
4, realization cost of the present invention is low, and the cost that uses manpower and material resources sparingly can be realized wireless networking, and the air quality is on a large scale carried out multi-faceted monitoring, and result of use is good, is convenient to promote the use of.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the structured flowchart of data acquisition main equipment of the present invention.
Fig. 3 is the structured flowchart of air quality monitoring subsystem of the present invention.
Description of reference numerals:
1-Surveillance center computing machine; 2-data acquisition main equipment; The 2-1-controller;
The 2-2-storer; The 2-3-LCD; The 2-4-audible-visual annunciator;
The 2-5-power module; 3-air quality monitoring subsystem 3-1-power supply;
System;
The 3-2-processor; 3-3-signal time-sharing multiplex electricity 3-4-signals collecting and conditioning
The road; Circuit;
3-41-analog acquisition and accent 3-42-digital data acquisition and accent 3-43-switch acquisition and accent
The reason circuit; The reason circuit; The reason circuit;
3-51-sensor groups one; 3-52-sensor groups two; 3-53-sensor groups three;
3-6-RS485 bus transmitting-receiving 3-7-RS485 bus is isolated change 4-cordless communication network;
Device; Depressor;
4-1-GPRS radio communication mold 4-2-GPRS radio communication mold 4-3-GPRS network.
Piece one; Piece two;
Embodiment
As shown in Figure 1, the present invention includes that prepackage has Surveillance center's computing machine 1, data acquisition main equipment 2 of monitoring software, a plurality of air quality monitoring subsystems 3 of joining through RS485 bus and data acquisition main equipment 2 and be used to realize Surveillance center's computing machine 1 and 2 data wireless transmission wireless communication of data acquisition main equipment network 4; Said cordless communication network 4 constitutes by GPRS wireless communication module one 4-1 that joins with Surveillance center computing machine 1 with GPRS wireless communication module two 4-2 that data acquisition main equipment 2 joins, realizes that through GPRS network 4-3 data pass mutually between said GPRS wireless communication module one 4-1 and GPRS wireless communication module two 4-2.
As shown in Figure 2; In the present embodiment; The power module 2-5 that said data acquisition main equipment 2 comprises controller 2-1 and the storer 2-2 that joins with controller 2-1, LCD 2-3 and audible-visual annunciator 2-4 and is respectively controller 2-1, storer 2-2, LCD 2-3 and audible-visual annunciator 2-4 power supply; Said power module joins with controller 2-1, storer 2-2, LCD 2-3 and audible-visual annunciator 2-4 respectively, and said GPRS wireless communication module two 4-2 and controller 2-1 join.
As shown in Figure 3; In the present embodiment; State air quality monitoring subsystem 3 and comprise power supply 3-1 and processor 3-2 to system's power supply; The input termination signal time-sharing multiplex circuit 3-3 of said processor 3-2; Input termination signals collecting and the modulate circuit 3-4 of said signal time-sharing multiplex circuit 3-3; Said signals collecting and modulate circuit 3-4 are made up of analog acquisition and modulate circuit 3-41, digital data acquisition and modulate circuit 3-42 and switch acquisition and modulate circuit 3-43; The input termination output signal of said analog acquisition and modulate circuit 3-41 is sensor groups one 3-51 of analog quantity; The input termination output signal of said digital data acquisition and modulate circuit 3-42 is sensor groups two 3-52 of digital quantity, and the input termination output signal of said switch acquisition and modulate circuit 3-43 is sensor groups three 3-53 of switching value, the output termination RS485 bus transceiver 3-6 of said processor 3-2; The output termination of said RS485 bus transceiver 3-6 is used for the RS485 bus isolating transformer 3-7 that joins with the RS485 bus, and said power supply 3-1 joins with signals collecting and modulate circuit 3-4, signal time-sharing multiplex circuit 3-3, processor 3-2, RS485 bus transceiver 3-6 and RS485 bus isolating transformer 3-7 respectively.
In the present embodiment, the ARM7TDMI-S kernel microprocessor LPC2292 that said controller 2-1 is a Philips company.Said power supply 3-1 is general dry battery, Li-Ion rechargeable battery, nickel-hydrogen chargeable cell or solar cell.Said processor 3-2 is single-chip microcomputer MSP430F169.Said RS485 bus transceiver 3-6 is chip SN751177N.
In the air quality monitoring subsystem 3 of the present invention; Signals collecting and modulate circuit 3-4 are designed to three types of analog acquisition and modulate circuit 3-41, digital data acquisition and modulate circuit 3-42 and switch acquisition and modulate circuit 3-43, are convenient to connect the sensor that output in the scene of being laid in is respectively analog quantity, digital quantity and switching value, data are gathered main equipment 2 and can be connected 128 Detection of Air Quality subsystems 3 through RS 485 buses at most; And the design through cordless communication network 4; Realized being connected of Surveillance center's computing machine 1 and countless a plurality of data acquisition main equipments 2 again, realized the unlimited networking technology of air quality monitoring system, can carry out multi-faceted monitoring the air quality on a large scale; And can reduce the execute-in-place difficulty; Use manpower and material resources sparingly, result of use is good, is convenient to promote the use of.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (7)
1. unlimited networking air quality monitoring system based on RS485 bus and GPRS network is characterized in that: comprise that prepackage has Surveillance center's computing machine (1), data acquisition main equipment (2) of monitoring software, a plurality of air quality monitoring subsystems (3) of joining through RS485 bus and data acquisition main equipment (2) and be used to realize Surveillance center's computing machine (1) and data acquisition main equipment (2) between data wireless transmission wireless communication network (4); Said cordless communication network (4) constitutes by the GPRS wireless communication module one (4-1) that joins with Surveillance center's computing machine (1) with GPRS wireless communication module two (4-2) that data acquisition main equipment (2) joins, passes mutually through GPRS network (4-3) realization data between said GPRS wireless communication module one (4-1) and the GPRS wireless communication module two (4-2).
2. according to the described unlimited networking air quality monitoring system of claim 1 based on RS485 bus and GPRS network; It is characterized in that: the power module (2-5) that said data acquisition main equipment (2) comprises controller (2-1) and the storer (2-2) that joins with controller (2-1), LCD (2-3) and audible-visual annunciator (2-4) and is respectively controller (2-1), storer (2-2), LCD (2-3) and audible-visual annunciator (2-4) power supply; Said power module joins with controller (2-1), storer (2-2), LCD (2-3) and audible-visual annunciator (2-4) respectively, and said GPRS wireless communication module two (4-2) joins with controller (2-1).
3. according to the described unlimited networking air quality monitoring system of claim 1 based on RS 485 buses and GPRS network; It is characterized in that: said air quality monitoring subsystem (3) comprises power supply (3-1) and the processor (3-2) to system's power supply; The input termination signal time-sharing multiplex circuit (3-3) of said processor (3-2); The input termination signals collecting of said signal time-sharing multiplex circuit (3-3) and modulate circuit (3-4); Said signals collecting and modulate circuit (3-4) are by analog acquisition and modulate circuit (3-41), digital data acquisition and modulate circuit (3-42) and switch acquisition and modulate circuit (3-43) formation; The input termination output signal of said analog acquisition and modulate circuit (3-41) is the sensor groups one (3-51) of analog quantity; The input termination output signal of said digital data acquisition and modulate circuit (3-42) is the sensor groups two (3-52) of digital quantity; The input termination output signal of said switch acquisition and modulate circuit (3-43) is the sensor groups three (3-53) of switching value; The output termination RS485 bus transceiver (3-6) of said processor (3-2); The output termination of said RS 485 bus transceivers (3-6) is used for the RS485 bus isolating transformer (3-7) that joins with the RS485 bus, and said power supply (3-1) joins with signals collecting and modulate circuit (3-4), signal time-sharing multiplex circuit (3-3), processor (3-2), RS485 bus transceiver (3-6) and RS485 bus isolating transformer (3-7) respectively.
4. according to the described unlimited networking air quality monitoring system based on RS485 bus and GPRS network of claim 2, it is characterized in that: said controller (2-1) is the ARM7TDMI-S kernel microprocessor LPC2292 of Philips company.
5. according to the described unlimited networking air quality monitoring system based on RS485 bus and GPRS network of claim 3, it is characterized in that: said power supply (3-1) is general dry battery, Li-Ion rechargeable battery, nickel-hydrogen chargeable cell or solar cell.
6. according to the described unlimited networking air quality monitoring system based on RS485 bus and GPRS network of claim 3, it is characterized in that: said processor (3-2) is single-chip microcomputer MSP430F169.
7. according to the described unlimited networking air quality monitoring system based on RS485 bus and GPRS network of claim 3, it is characterized in that: said RS485 bus transceiver (3-6) is chip SN751177N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010596196 CN102568173A (en) | 2010-12-19 | 2010-12-19 | Wireless networking air quality monitoring system based on RS485 bus and general packet radio service (GPRS) network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010596196 CN102568173A (en) | 2010-12-19 | 2010-12-19 | Wireless networking air quality monitoring system based on RS485 bus and general packet radio service (GPRS) network |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295376A (en) * | 2013-05-17 | 2013-09-11 | 成都佳锂科技有限公司 | Remote air quality monitoring system |
| CN103487640A (en) * | 2013-09-22 | 2014-01-01 | 浙江大学 | Current monitoring method for enterprise electric equipment based on distributed type network |
| CN103885094A (en) * | 2012-12-20 | 2014-06-25 | 苏州工业园区新宏博通讯科技有限公司 | Air quality monitoring system |
| CN103901173A (en) * | 2014-04-17 | 2014-07-02 | 中康韦尔(保定)环境科技有限公司 | Bank air quality detection equipment |
| CN104280517A (en) * | 2014-03-19 | 2015-01-14 | 黄克亚 | Wireless air quality monitoring system |
| CN106483258A (en) * | 2016-12-14 | 2017-03-08 | 北京林业大学 | Air quality data collection and radio transmitting device under a kind of forest environment |
| CN108401241A (en) * | 2018-04-27 | 2018-08-14 | 江苏信息职业技术学院 | A kind of wireless system for transmitting data |
-
2010
- 2010-12-19 CN CN 201010596196 patent/CN102568173A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885094A (en) * | 2012-12-20 | 2014-06-25 | 苏州工业园区新宏博通讯科技有限公司 | Air quality monitoring system |
| CN103295376A (en) * | 2013-05-17 | 2013-09-11 | 成都佳锂科技有限公司 | Remote air quality monitoring system |
| CN103487640A (en) * | 2013-09-22 | 2014-01-01 | 浙江大学 | Current monitoring method for enterprise electric equipment based on distributed type network |
| CN104280517A (en) * | 2014-03-19 | 2015-01-14 | 黄克亚 | Wireless air quality monitoring system |
| CN103901173A (en) * | 2014-04-17 | 2014-07-02 | 中康韦尔(保定)环境科技有限公司 | Bank air quality detection equipment |
| CN106483258A (en) * | 2016-12-14 | 2017-03-08 | 北京林业大学 | Air quality data collection and radio transmitting device under a kind of forest environment |
| CN108401241A (en) * | 2018-04-27 | 2018-08-14 | 江苏信息职业技术学院 | A kind of wireless system for transmitting data |
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Application publication date: 20120711 |