CN101101300A - Public place air environment monitoring display system - Google Patents
Public place air environment monitoring display system Download PDFInfo
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- CN101101300A CN101101300A CNA2007101002964A CN200710100296A CN101101300A CN 101101300 A CN101101300 A CN 101101300A CN A2007101002964 A CNA2007101002964 A CN A2007101002964A CN 200710100296 A CN200710100296 A CN 200710100296A CN 101101300 A CN101101300 A CN 101101300A
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Abstract
The invention provides a public air environment monitoring and showing system, comprising: one or multiple transducers, used to sense concentrations of various gases in the air, as well as temperature, humidity, fresh air flow, inhalable particles and other environmental parameters, and transmitting the sensed data after processed to system controller; system controller, connected between one or multiple transducers and LED screen, receiving environmental data from transducers and processing them and sending the processed environmental data to the LED screen in displayable form, and sending the environmental data via circulation interface to peripheral processing device and circulation device; LED screen, used to receive environmental data from the system controller and display them on it. And the invention can implement high system integration and has system extending function, able to implement remote monitoring and convenient for users.
Description
Technical field
The present invention relates to a kind of air environment monitoring publicity system, more particularly, relate to a kind of system that is used for monitoring air ambient in public places and the data publicity that monitors is given the crowd.
Background technology
In public places, especially large-scale commercial center, such as department stores and other places, because people are in the space of a relative closure, the air flow degree is not as high out of doors, so pollutant is easy to accumulate in air.At this moment, some market adopts display screen to show airborne pollutant and concentration thereof, so that client can know clearly self residing ambient conditions.
Fig. 1 shows a kind of air environment monitoring publicity system of prior art, and it comprises one or more sensors 10, one or more direct digital controller (DDC)s (DDC) 20, computing machine 30 and LED screen 40.Wherein, the analog signals of sensor 10 inductions is directly sent to DDC (direct digital controller (DDC)) 20, DDC20 is with the conversion process of simulating signal through self, the simulating signal that sensor 10 is transmitted changes into digital signal, and be transferred to computing machine 30 by network interface with computing machine 30,30 pairs of digital signals that receive of computing machine are further processed, and the signal of handling well is transferred to LED screen 40 by the RS232 interface shows.Wherein the quantity of analog quantity is the analog quantity input interface quantity decision according to DDC20.And the quantity of DDC20 requires decision by rig-site utilization.
Above air ambient detects the publicity system can pass through airborne pollutant of sensor and concentration thereof, and relevant data is presented on the LED screen in real time, makes client can understand the air quality in the environment of living in real time.But this system has and forms complicatedly, and integrated level is low, the shortcoming that cost is high, and therefore, when the more on-the-spot check point of needs, cost will increase sharply.In addition, can't link up remote monitoring with overlapping this system more.
Summary of the invention
Therefore, the invention is intended to solve because one or more problems that the defective of prior art causes.
The purpose of this invention is to provide a kind of public place air environment monitoring display system, it can realize the height integration of system, thus user-friendly installation, and the complexity of reduction manufacture process, thereby improve output, reduce cost.
The purpose of this invention is to provide a kind of public place air environment monitoring display system, the processing that it can be by the system controller control data, and send the data handled to peripheral processing unit, thus realize the Centralized Monitoring and the management of environmental data.
According to an aspect of the present invention, a kind of public place air environment monitoring display system is provided, it comprises: one or more transmitters, it is used to respond to environmental parameters such as the concentration of airborne all gases and temperature, humidity, resh air requirement, pellet, and the data of sensing are through being sent to system controller after handling; System controller, it is connected between one or more transmitters and the LED screen, from transmitter reception environment data, handles this environmental data, and this environmental data is sent to the LED screen with displayable form; The LED screen, it is used for from system controller reception environment data, and is presented on the LED screen.
Preferably, adopt the embedded microprocessor microcontroller of multi-functional high integration to realize that system controller of the present invention and transmitter are with real-time processing data.
Preferably, the system controller of public place air environment monitoring display system of the present invention can be integrated in the LED screen.
Preferably, the one or more transmitters and the system controller of public place air environment monitoring display system of the present invention have communication interface, and realize intercommunication mutually by communication interface.
Preferably, the system controller of public place air environment monitoring display system of the present invention has a plurality of communication interfaces that can communicate by letter with peripheral processing unit, thereby the data of handling are sent to the perimeter network of the corresponding interface, and receive information from perimeter network.
Preferably, by system controller for the processing of data and be sent to peripheral processing unit so that Centralized Monitoring, function that can enhanced system.
By public place air environment monitoring display system of the present invention, the integrated installation of system can be realized, and the air ambient data that the sensor sensing of long-range setting arrives can be monitored simultaneously, be convenient to the different user operation.
System controller by public place air environment monitoring display system of the present invention has the communication interface that can connect the GPRS functions of the equipments, can directly carry out radio communication, connection between the realization system and Centralized Monitoring by GPRS or CDMA.
Description of drawings
Fig. 1 is the block diagram of the air environment monitoring publicity system of prior art;
Fig. 2 is the block diagram according to air environment monitoring publicity of the present invention system;
Fig. 3 is the theory diagram according to the system controller of air environment monitoring publicity of the present invention system;
Fig. 4 is the theory diagram according to the transmitter of air environment monitoring publicity of the present invention system;
Fig. 5 is the schematic topological diagram according to the public place indoor air quality monitoring electronics publicity system of the embodiment of the invention.
Embodiment
Describe specific embodiments of the invention below with reference to the accompanying drawings in detail.
Fig. 2 is the block diagram according to air environment monitoring publicity of the present invention system.
As shown in Figure 2, air environment monitoring publicity of the present invention system 100 mainly contains three parts and forms, that is, and and LED screen 100, system controller 200 and one or more transmitter 300.
According to the present invention, this electronics publicity system 100 has one or more transmitters 300, and for example, it can be CO2+CO+ temperature+humidity network transmitter, or other kind network transmitters, such as F2000TSM-IAQ-S401-N.This transmitter 300 can adopt the highly reliable CO2 sensor of the infrared self-diffusion formula of NDIR, semiconductor CO sensor, NTC thermistor, HS series capacitive humidity sensor to monitor airborne CO2, CO concentration, and the temperature and humidity of air.This transmitter 300 also comprises intelligent AVR chip, high speed MAX487E communication chip etc., thereby carbon dioxide (CO2) concentration in the monitored site space that will gather, carbon monoxide (CO) concentration, temperature, humidity raw data are sent to system controller 200 by the communication interface of himself after treatment.In the present invention, transmitter 300 gather the concentration of airborne multiple gases and temperature, humidity, etc. environmental parameter, carry out data processing such as A/D conversion and linearization, filtering by embedded microprocessor microcontroller itself, obtain the measured value of respective environment parameter, directly be sent to system controller 200 by the RS485 communication interface again.This system controller 200 can adopt the processor of high-speed high capacity, for example, 32 little process chip of ARM series A T91SAM7S256, it can carry out high speed MAX3232 and communicate by letter with MAX487, and have RS232, RS485, usb communication interface, led driver driving interface, thereby can be connected with opertaing device that has above interface arbitrarily and display terminal.This system controller 200 receives data by communication interface from one or more transmitters 300, and further handles for the data that receive, and is sent in real time on the LED display 100 by the led driver driving interface afterwards.In the present invention, system controller 200 has the partial data that substitutes DDC (field controller)+PC in the present application model to be handled and control function, and adopt embedded microprocessor microcontroller to accept the data of transmitter 100 by the RS485 interface, control the display mode and the displaying contents of LED screen after being handled again.According to a preferred embodiment of the invention, system controller 200 of the present invention can provide the display mode of 5 kinds of LED screens, comprises selections such as font size, color, position.
Describe system controller 200 of the present invention in detail below with reference to Fig. 3.
As shown in Figure 3, system controller 200 of the present invention comprises central processing portion 201, power unit 202, clock part 203, communications portion 204 and led driver interface section 205.
Wherein, central processing portion 201 adopts the form of integrated chip, for example, can be the ARM series monolithic AT91SAM7S256 of American ATMEL, thereby for handling from the data that one or more transmitters 300 receive through communications portion 204, and the data that control will be handled are sent to LED display 100 through led driver interface section 205.Wherein, this central processing portion 201 can further comprise storer, and this storer can be connected with central processing portion 201 by serial ports, is used to store the character library of LED display.
In certain embodiments of the invention, communications portion 204 can comprise two-way RS485 communication interface and one road RS232 communication interface, for example, this RS485 communication interface adopts the U.S. letter MAX487E of company of the U.S. chip of two 5V, by level transferring chip (for example, 74LVC07AD) link to each other with central processing portion 201, these two RS485 communication interfaces wherein one the road and the RS232 communication interface public, can select RS485 by the jumper terminal on the wiring board still is the RS232 interface.In addition, this communications portion 204 can also comprise the usb communication interface, and for example, its USB interface that adopts single chip computer AT 91SAM7S256 to carry is equipped with peripheral circuit and constitutes.This Universal USB interface makes the very easy to use of communications portion.
In certain embodiments of the invention, for example, clock part 203 is made up of HT1381 clock chip, battery, crystal oscillator etc., and it can show the time that comprises year, month, day, ten, minute, second, week etc.
Led driver interface section 205 is used to provide display board data and control timing by high-speed bus driver chip and multiple connector, a plurality of high speed or door and a plurality of pin jack.
Here, multiple communication interface that system controller of the present invention 200 is integrated, for example, RS232 interface, RS485 interface, USB interface and led driver interface.This system controller can connect peripheral processing unit by these communication interfaces, as remote monitoring server, perhaps external communications equipment, such as GPRS equipment directly to carry out radio communication.Like this, system controller of the present invention can with remote monitoring server and other communication apparatus communication, thereby receive various instruction and datas from it.And this system controller 200 can be carried out corresponding operation after the instruction that receives remote monitoring server, and, after the data that receive from remote monitoring server or other communication facilities, can further send to display screen to show.Like this, air monitering publicity of the present invention system can also be used to issue commonweal informations such as public good safe and sanitary information, public service ads information, Weather information.And according to embodiments of the invention, this system controller 200 can also have calendar clock, multiple function such as infrared remote control.
Fig. 4 is the structural representation of transmitter 300 of the present invention.
As shown in Figure 4, transmitter 300 of the present invention comprises central processing unit part 301, power unit 302, communications portion 303 and Sensor section 304.
In certain embodiments of the invention, central processing portion 301 is the integrated form chip structure, and for example, the AVR series monolithic ATMEGA88V of American ATMEL handles with the data that Sensor section 304 is sensed.Power unit 302 is applicable to wide in range voltage input, for example, AC/DC 12V-40V, it can adopt high performance power management chip, thereby reaches the effect that reduces the power supply temperature, to reduce the interference of temperature to sensor.Communications portion 303 can comprise one road RS485 interface, thereby carries out data communication with system controller 200 and other opertaing devices.As required, Sensor section 304 can comprise carbon dioxide (CO2), carbon monoxide (CO), temperature, humidity sensor, and this type of sensor can be a sensor known to a person of ordinary skill in the art, therefore, here will not be described in detail.
In this transmitter 300, to handle by central processing portion 301 by the raw data that carbon dioxide (CO2), carbon monoxide (CO), temperature, humidity sensor collection come, and the data of handling will be offered system controller 200 and other opertaing devices by the RS485 interface.
According to the present invention, transmitter is inner to adopt embedded microprocessor microcontroller to carry out data processing, after the environmental parameter process conversion Calculation that collects, sends other treatment facility again to, for example, and system controller.Therefore, because transmitter itself has carried out computing to data, transmitter also can directly be sent to PC or other peripheral processing unit and communication facilities with data by the RS485 interface.
In addition, those skilled in the art as can be known, in the present invention, according to concrete needs, can be with said system three partly integrated, also can be provided with separately, for example, system controller 200 of the present invention and one or more transmitter 300 can be integrated in the display screen 100, thereby make the integrated level of raising system, the simplified system structure reduces manufacturing cost.
In addition, owing to may wish on display screen, to show the air quality situation in remote monitoring place in the middle of the practical application, the air quality situation that perhaps shows a plurality of monitorings place, the present invention can become one system controller 200 and display screen 100, pass through communication interface simultaneously, for example, the one or more transmitters 300 that connect long-range placement through the RS485 bus, so that display screen can show the air situation in other place of non-display screen position, thereby make system architecture compact more, use more flexible.Here, a plurality of transmitters can be installed in the diverse location of public place, can show the environmental data of diverse location respectively.Also the each point environmental data can be averaged and show.
According to preferred embodiment, one or more transmitters 300 of the present invention can be the transmitter of identical or different kind, and, according to the interface quantity of system controller 200, can connect big transmitter 300, for example, 256.
Fig. 5 is the schematic topological diagram according to the public place indoor air quality monitoring electronics publicity system of the embodiment of the invention.
As shown in Figure 5, public place indoor air quality monitoring electronics publicity system according to the embodiment of the invention mainly comprises the air environment monitoring publicity system that is installed on the public place and is positioned at long-range data center that it connects by the Internet or GPRS equipment.
When the air environment monitoring publicity system that is installed on the public place by its sensor 1 in the sensor n sensing surrounding air pollutant levels and every environmental parameter and when being presented on the LED screen, air environment monitoring publicity system is sent to main frame with each data of sensing through serial port, and is sent to long-range data center by main frame via the Internet or GPRS equipment.According to embodiments of the invention, data center can comprise system server, and database and monitoring are handled and management server, is used for the data that receive are managed.
Below, will be with regard to the measurand of public place air environment monitoring display system: environment temperature, ambient humidity, environment carbon monoxide (CO) concentration, environment carbon dioxide (CO2) concentration be described the treatment scheme that air ambient of the present invention detects the publicity system.
1. environment carbon monoxide (CO) concentration operating process is as follows:
CO concentration in the tested gas in CO sensor public place, and convert voltage signal to; Voltage signal is sent to amplifier, converts digital signal to and handle through the A/D convertor circuit of central processing unit itself; Data-signal after handling is transferred to system controller and this environmental data is sent to the LED screen with displayable form by the RS485 communication interface show, or be transferred to other equipment by communication interface.
2. the environment temperature operating process is as follows:
Temperature sensor detects public place test environment temperature, and converts voltage signal to; Voltage signal is sent to amplifier, converts digital signal to and handle through the A/D convertor circuit of central processing unit itself; Data-signal after handling is transferred to system controller and this environmental data is sent to the LED screen with displayable form by the RS485 communication interface show, or be transferred to other equipment by communication interface.
3. the ambient humidity operating process is as follows:
Humidity sensor detects public place test environment humidity, converts frequency signal to through freq converting circuit; Central processing unit monitoring frequency signal is also handled, data-signal after handling is transferred to system controller and this environmental data is sent to the LED screen with displayable form by the RS485 communication interface show, or be transferred to other equipment by communication interface.
4. environment carbon dioxide (CO2) concentration operating process is as follows:
The CO2 sensor assembly detects the CO2 concentration in the tested gas in public place, and outputting data signals; Central processing unit is handled by serial ports read module data, and the data-signal after will handling is transferred to system controller and this environmental data sent to LED screen with displayable form by the RS485 communication interface and show, or is transferred to other equipment by communication interface.
By top described, in the present invention, adopt the embedded microprocessor microcontroller of multi-functional high integration to realize system controller and transmitter, thus real-time processing data, and do not adopt PC.And the present invention can be integrated in a sensing transducer with a plurality of sensors, thereby saved manufacturing cost.And, in the middle of production run, can one a plurality of sensors in the sensing transducer carry out mutual verification, improved the accuracy and the required time of verification.In addition, the present invention replaces field controller and PC with system controller, finishes the processing capacity of data and control Presentation Function and makes designs simplification, and convenient the installation reduced cost.
In sum, the present invention uses the control that single-chip microcomputer carries out the large LED screen, has replaced with computer the large LED screen being controlled in the prior art pattern of demonstration.Thereby save the application cost and the volume that has reduced product of product, simplify the application difficulty (comprise and installing and operation) of product.Thereby make this project widespread usage in public places become possibility.
By top described, the present invention has further improved the integration of system on the basis of existing public place air environment monitoring display system as can be known, thereby is convenient to user's installation and use, has reduced the complexity in the manufacture process simultaneously.
In addition, because adopting system controller handles for the air ambient data of sensing, and send to peripheral processing unit, public place air environment monitoring display system of the present invention can significantly improve the handling property of system, and, can realize the networking of whole air environment monitoring, be convenient to centralized management.
Claims (9)
1. public place air environment monitoring display system, it comprises:
One or more transmitters, it is used to respond to environmental parameters such as the concentration of airborne all gases and temperature, humidity, resh air requirement, pellet, and the data of sensing are through being sent to system controller after handling;
System controller, it is connected between one or more transmitters and the LED screen, from transmitter reception environment data, handle this environmental data, and this environmental data is sent to the LED screen with displayable form, simultaneously environmental data is sent to peripheral processing unit and communication facilities by communication interface;
The LED screen, it is used for from system controller reception environment data, and is presented on the LED screen.
2. public place air environment monitoring display system as claimed in claim 1, wherein, this transmitter and system controller are realized with embedded microprocessor microcontroller.
3. public place air environment monitoring display system as claimed in claim 1, wherein, this system controller is integrated in the LED screen.
4. public place air environment monitoring display system as claimed in claim 1, wherein, these one or more transmitters and system controller have communication interface, and intercom mutually by communication interface.
5. public place air environment monitoring display system as claimed in claim 1, wherein, this system controller has communication interface multiple and peripheral processing unit and communication apparatus communication, thereby by the corresponding communication interface data of handling are sent to peripheral processing unit and communication facilities, and receive instruction and data from peripheral processing unit and communication facilities.
6. public place air environment monitoring display system as claimed in claim 5, wherein, this system controller will be sent to the LED screen by the data that communication interface receives from peripheral processing unit and communication facilities, and be presented on the LED screen.
7. public place air environment monitoring display system as claimed in claim 5, wherein, this communication interface is RS485 interface, RS232 interface, USB interface.
8. public place air environment monitoring display system as claimed in claim 5, wherein, by the communication interface of system controller, this a plurality of monitoring publicity system is linked together via peripheral processing unit and communication facilities.
9. public place air environment monitoring display system as claimed in claim 5, wherein, this communication interface is the communication interface that connects GPRS or CDMA equipment, a plurality of monitoring publicity system directly carries out radio communication and networking by GPRS or CDMA.
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| CN2007101002964A CN101101300B (en) | 2007-06-07 | 2007-06-07 | Public place air environment monitoring display system |
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| CN2007101002964A CN101101300B (en) | 2007-06-07 | 2007-06-07 | Public place air environment monitoring display system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103503839A (en) * | 2013-06-25 | 2014-01-15 | 四川省农业科学院蚕业研究所 | Intelligent measurement and control system for silkworm egg hatching and breed conservation |
| CN104569053A (en) * | 2014-12-19 | 2015-04-29 | 文曲 | Portable harmful gas detection system and portable harmful gas detection method |
| CN105136198A (en) * | 2015-07-31 | 2015-12-09 | 合肥智凯电子科技有限公司 | Air environment monitoring display system for public places |
| CN105403252A (en) * | 2015-12-08 | 2016-03-16 | 太仓市新志杰电子科技有限公司 | City air quality real-time integrated intelligent LED display system |
| CN108318940A (en) * | 2018-04-08 | 2018-07-24 | 万威电子科技（深圳）有限公司 | A kind of enviromental monitoring equipment |
| CN109212135A (en) * | 2018-09-07 | 2019-01-15 | 江苏中聚检测服务有限公司 | Public place air environment monitoring display system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004031547A1 (en) * | 2002-10-03 | 2004-04-15 | Sumitomo Electric Industries, Ltd. | Emission amount report device, system for charge for exhaust gas from vehicle, management unit and inspection device making up the system |
| CN1588030A (en) * | 2004-07-09 | 2005-03-02 | 大连理工大学 | Portable gas detection analyzer with temperature and humidity compensation function |
| CN1598591A (en) * | 2004-07-19 | 2005-03-23 | 重庆大学 | Multi-targent air monitoring and sampling remote radio monitoring system |
| CN1855160A (en) * | 2005-04-18 | 2006-11-01 | 上海瑞华(集团)有限公司 | Method for transmitting environmental monitoring information and processing data |
| CN1896742A (en) * | 2006-06-12 | 2007-01-17 | 杭州世创科技有限公司 | Space-pollution realtime monitoring indicator |
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2007
- 2007-06-07 CN CN2007101002964A patent/CN101101300B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103503839A (en) * | 2013-06-25 | 2014-01-15 | 四川省农业科学院蚕业研究所 | Intelligent measurement and control system for silkworm egg hatching and breed conservation |
| CN104569053A (en) * | 2014-12-19 | 2015-04-29 | 文曲 | Portable harmful gas detection system and portable harmful gas detection method |
| CN105136198A (en) * | 2015-07-31 | 2015-12-09 | 合肥智凯电子科技有限公司 | Air environment monitoring display system for public places |
| CN105403252A (en) * | 2015-12-08 | 2016-03-16 | 太仓市新志杰电子科技有限公司 | City air quality real-time integrated intelligent LED display system |
| CN108318940A (en) * | 2018-04-08 | 2018-07-24 | 万威电子科技（深圳）有限公司 | A kind of enviromental monitoring equipment |
| CN109212135A (en) * | 2018-09-07 | 2019-01-15 | 江苏中聚检测服务有限公司 | Public place air environment monitoring display system |
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| CN101101300B (en) | 2011-08-10 |
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Address after: 100095 Beijing city Haidian District P.Tricuspidata Road No. 9 Building No. 8 hospital Patentee after: Beijing neutral Green sensor Polytron Technologies Inc Address before: 100098 Beijing city Haidian District No. 48 Zhichun Road surplus Mansion Building 3 3 unit 5C Patentee before: Beijing Tongdy Control Technology Co., Ltd. |