CN202485718U - Distributed environment temperature and humidity monitoring device - Google Patents
Distributed environment temperature and humidity monitoring device Download PDFInfo
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- CN202485718U CN202485718U CN2012200506626U CN201220050662U CN202485718U CN 202485718 U CN202485718 U CN 202485718U CN 2012200506626 U CN2012200506626 U CN 2012200506626U CN 201220050662 U CN201220050662 U CN 201220050662U CN 202485718 U CN202485718 U CN 202485718U
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Abstract
The utility model relates to an environment temperature and humidity monitoring device which is characterized in that the device consists of a plurality of slave machines and a host machine, wherein the slave machines collect temperature and humidity data of measured points, and transmit the data to the host machine; the data is processed by the host machine, if the temperature or the humidity of the measured points exceeds the preset range, voice alarming is carried out and corresponding alarming lights are lighted up, and meanwhile the host machine displays all the temperature and humidity data collected from the slave machines by adopting a liquid crystal screen; the slave machines and the host machine are in wireless bidirectional communication; and the host machine and the slave machines comprise six parts including data collecting modules, data processing modules, data transmission modules, display modules, alarming modules, and power supply modules. The distributed environment temperature and humidity monitoring device has the characteristics of simple structure, convenience in using, miniaturization, good visuality, and meanwhile, a wireless mode is adopted, a feed wire is not required for connection, the host machine and the slave machines can move randomly, and the expandability is good.
Description
Technical field:
The utility model relates to a kind of temperature and humidity monitoring device, is a kind of distributed environment temperature and humidity monitoring device specifically.
Background technology:
In the humiture observation system production that is applied to people and life more and more widely, fields such as warehouse, food, medicine, library, archives, agricultural greenhouse, building ground for example.
Traditional humiture monitoring method mainly contains two kinds: the one, and utilize handheld instrument to carry out the personal monitoring, there are shortcomings such as workload is big, efficient is low in this method; The 2nd, adopt multiple spot wire transmission instrument to monitor, must lay a large amount of cables at collection site and be used for sensor power supply, signal transmission and data acquisition.Signal wire, control line, power lead are mingled in together, when system moves, receive the influence of factors such as transmission range, electromagnetic interference (EMI) easily, and have shortcomings such as system extension ability, cost prohibitive.
Develop rapidly along with radio communication and low-power-consumption embedded technology; Emerging wireless sensor network technology has appearred; Changed data transfer mode in the past, need not be electrically connected between collection point and the monitoring equipment, and antijamming capability has been strong; Reduce cost effectively, improved the reliability of system.Wireless sensor network is that a kind of brand-new information is obtained platform; Can monitor in real time with the collection network distributed areas in the information of various detected objects; And have characteristics such as low-power consumption, low cost, distributed and self-organization, brought a change of information perception.Utilize wireless sensor network to realize that monitoring has following characteristics:
(1) collection and the transmission of information under the abominable or remote situation of environment guarantees that security of system is reliable.
(2) system implementation, operating cost are low, need not to lay a large amount of cables, support provisional installation, very are easy to expansion and upgrade.
(3) have data storage and filing ability, can make a large amount of sensing datas store backstage or remote data base into, and can carry out the data mining of off-line, data analysis also is a very important aspect during system realizes.
Summary of the invention:
The technical matters that the utility model will solve is: a kind of distributed environment temperature and humidity monitoring device is provided, and it can be through the temperature and humidity of a plurality of distribution measuring points in the automatic monitoring of environmental of wireless mode.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of distributed environment temperature and humidity monitoring device, and this device is made up of a plurality of slaves and a main frame, and the quantity of slave can be confirmed according to actual needs.Slave carries out the temperature and humidity data acquisition to the measured point, and sends the data to main frame.Data are through host process, if measured point temperature or humidity surpass preset range, and audio alert and light corresponding alarm lamp then, main frame adopts liquid crystal display to show the temperature and humidity data that all slaves collect simultaneously.Between slave and the master is wireless two-way communication.
Described main frame and slave comprise data acquisition module, data processing module, data transmission module, display module, alarm module, power module six parts.Data acquisition module mainly is made up of digital temperature and humidity sensor, is used for measuring the temperature and humidity data; Data processing module mainly is made up of microprocessor, and microprocessor is used for the data that sensor senses are handled, and calculates; Data transmission module mainly is made up of radio transmitting and receiving chip, is used for receiving and emission information; Display module shows the temperature and humidity data of the measurement point of measuring through slave; Whether temperature or humidity that alarm module is used to monitor measurement point surpass preset range; Power module is used for direct supply to the device of main frame and slave being provided.
The beneficial effect of the utility model is:
The utility model can be monitored the temperature and humidity of a plurality of distributed points of environment, and it is simple in structure, easy to use, has miniaturization, characteristics such as visual good; Adopt wireless mode simultaneously; Need not feeder line and connect, main frame and slave can move at any time, and extensibility is good.
Description of drawings:
Fig. 1 is the structured flowchart of the said distributed environment temperature and humidity of the utility model monitoring device.
Fig. 2 is the structured flowchart of slave in the said monitoring device of the utility model.
Fig. 3 is the CC of said wireless module of the utility model and microprocessor.
Fig. 4 is the CC of said temperature and humidity sensor of the utility model and microprocessor.
Fig. 5 is the CC of the said display module of the utility model, button and microprocessor.
Fig. 6 is the CC of said alarm module of the utility model and microprocessor.
Fig. 7 is the said system of a utility model main program flow chart.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.Present embodiment only is the description to the utility model embodiment, and the scope to the utility model does not have any restriction.
The structured flowchart of the described distributed environment temperature and humidity of the utility model monitoring device is as shown in Figure 1: microprocessor adopts AT89C52, and display module adopts LCDs LCD12864, and the wireless transmission receiver module adopts module PTR2000.Main frame is through effectively monitoring the temperature and humidity of each distribution measuring point with the wireless telecommunications of slave.
The structured flowchart of slave is as shown in Figure 2 in the described monitoring device of the utility model: microprocessor adopts AT89C52, and the temperature and humidity sensor adopts SHT11, and wireless module adopts module PTR2000.
Described wireless transmission receiver module PTR2000 is very convenient with being connected of microprocessor, and CC is as shown in Figure 3.Characteristics such as PTR2000 has the emission of reception unification, WV is low, power consumption is little, antijamming capability is strong.Communication distance under the perfect condition is about 200 meters, can directly be connected with the I/O mouth of single-chip microcomputer, and circuit is succinct, and communication is reliable.The RXD of single-chip microcomputer directly links to each other with the D1 pin with the D0 of PTR2000 module with the TXD pin, realizes serial data transmission.The pattern control pin of PTR2000 links to each other with the control pin of single-chip microcomputer, and wherein CS connects power lead, promptly meets high level CS=1, and PTR2000 selects working channel 2 promptly to count biography in the 434.33MHz frequency range.TXEN, PWR two pins directly link to each other with single-chip microcomputer P1.0, P1.1 pin respectively, when system works, control its mode of operation (the little power consumption state of accepting state, emission state and standby) in real time by the control program that moves in the single-chip microcomputer.When carrying out wireless data transmission between main frame and the slave, the PTR2000 module of transmitting terminal is modulated into radiofrequency signal with the data to be transferred of single-chip microcomputer, re-sends to the PTR2000 module of receiving end; The PTR2000 module received RF signal of receiving end, and it is modulated into the TTL signal delivers to single-chip microcomputer.
Described Temperature Humidity Sensor adopts integrated digital temperature and humidity sensor SHT11, and CC is as shown in Figure 4.SHT11 comprises a capacitive character condensate hygrometric sensitive element, a temperature element of processing with gap material, and on same chip, an operational amplifier is realized seamless link with 14 A/D converter and serial interface circuit.Between power pins, add a decoupling capacitor in the connection, be used for the filtering of decoupling.The external pull-up resistor of DATA data line is generally got C4=100nF, R2=10K.Wherein the DATA pin directly links to each other with single-chip microcomputer P3.6 pin, and the SCK pin directly links to each other with single-chip microcomputer P3.5 pin.DATA is used for the read sensor data, passes to single-chip microcomputer, and the communication that SCK is used between single-chip microcomputer and the SHT11 is synchronous.In program, obtain precise dose and humidity data through carrying out linear compensation.
Described display device, present embodiment are the Chinese character image type LCD of 128 * 64 dot matrix, and be as shown in Figure 5.The LCD12864 modular power consumes little, and display quality is high.Each pin connection of system's display module is described below: VCC, GND connect 5V power supply and ground respectively.VO passes through a variohm and is connected the connection of 5V power supply, and function is contrast (brightness) adjustment.RS is connected with single-chip microcomputer 27 pin, and function is for working as RS=" H ", and expression DB7-DB0 is a video data, and as RS=" L ", expression DB7-DB0 is the idsplay order data.WR is connected with single-chip microcomputer 26 pin, and E is connected with single-chip microcomputer 28 pin, and function is as WR=" H ", E=" H ", and data are read DB7-DB0, WR=" L ", E=" H → L ", the data of DB7-DB0 are write IR (instruction registor) or DR (data working storage).PSB is connected with single-chip microcomputer 25 pins, and PSB=H, and promptly module adopts 8 parallel port modes to communicate.NC is that empty pin does not connect.RST is connected with single-chip microcomputer 17 pin, and function is a reset terminal, and low level is effective.VEE is the lcd drive voltage output terminal, and this module only is used for video data and carries out man-machine conversation, and LCD not allowable drives other device work, so pin is unsettled.A+, K-are LCD backlight anode and negative terminal, connect 5V power supply and ground respectively.This monitoring device data message has real-time, so on data presentation, adopt the mode of brush screen, promptly correctly receives just brush screen update displayed of back as information.In use, at first to carry out initial work by Single-chip Controlling LCD for LCD12864.Operation push-button is directly imported from the P1 mouth of single-chip microcomputer.The K1 key is the key that is provided with of humiture alarming value, and K2 is concrete Object Selection key, and K3, K4 are used for adjusting the size of humiture alarming value, and K5 is a return key.Through the state of display screen reflection system in time operation, can carry out manual work setting through keyboard, keyboard and liquid crystal display make man-machine interaction more convenient flexibly.
The CC of described alarm module and microprocessor is as shown in Figure 6.Warning circuit comprises audible alarm and light warning two parts, has adopted active hummer and light emitting diode.In case monitored some temperature or humidity are crossed low or too high, have exceeded preset range, hummer will be rung, and reminds the staff to take measures, and simultaneously, corresponding pilot lamp also can brighten.Pilot lamp has five, and corresponding five kinds of states are to assist the rapid decision problem of staff place.The bright expression normal condition of pilot lamp D1, the alarm of the bright expression superhigh temperature of D2, the alarm of the bright expression ultralow temperature of D3, the alarm of wetting of the bright expression superelevation of D4, the ultralow wet alarm of the bright expression of D5.
System programming comprises humiture part of data acquisition, wireless data transmitting section, wireless data receiving unit and reception result processes and displays part and software verification.Whole procedure adopts the C language, and adopts the modularized program design, and readable strong, main program flow chart is as shown in Figure 7.
Above-described embodiment, related data and computing method are only as schematic illustration, the equivalent arrangements of being done according to the utility model claim such as, the technology that all should be the utility model contains.
Claims (4)
1. distributed environment temperature and humidity monitoring device; It is characterized in that: this device is made up of a plurality of slaves and a main frame; The quantity of slave can confirm according to actual needs that slave carries out the temperature and humidity data acquisition to the measured point, and sends the data to main frame; Data are through host process; If measured point temperature or humidity surpass preset range, audio alert and light corresponding alarm lamp then, main frame adopts liquid crystal display to show the temperature and humidity data that all slaves collect simultaneously; Between slave and the master is wireless two-way communication, and described main frame and slave comprise data acquisition module, data processing module, data transmission module, display module, alarm module, power module six parts.
2. distributed environment temperature and humidity monitoring device according to claim 1 is characterized in that: integrated digital temperature of described data acquisition module and humidity sensor.
3. distributed environment temperature and humidity monitoring device according to claim 1, it is characterized in that: described data transmission module is made up of radio transmitting and receiving chip, is used for receiving and emission information.
4. distributed environment temperature and humidity monitoring device according to claim 1 is characterized in that: described display module is a LCDs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200506626U CN202485718U (en) | 2012-02-14 | 2012-02-14 | Distributed environment temperature and humidity monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200506626U CN202485718U (en) | 2012-02-14 | 2012-02-14 | Distributed environment temperature and humidity monitoring device |
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| CN202485718U true CN202485718U (en) | 2012-10-10 |
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| CN2012200506626U Expired - Fee Related CN202485718U (en) | 2012-02-14 | 2012-02-14 | Distributed environment temperature and humidity monitoring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177668A (en) * | 2013-03-05 | 2013-06-26 | 四川省电力公司达州电业局 | Liquid crystal display (LCD) device for warehouse management |
| CN106546291A (en) * | 2016-10-28 | 2017-03-29 | 成都力雅信息技术有限公司 | A kind of control system for gathering various data |
| CN108931269A (en) * | 2018-06-28 | 2018-12-04 | 广东技术师范学院 | A kind of wireless humiture acquisition system |
| CN116456050A (en) * | 2023-04-11 | 2023-07-18 | 广东视安通智慧显控股份有限公司 | Automatic opening display method of entrance machine |
-
2012
- 2012-02-14 CN CN2012200506626U patent/CN202485718U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177668A (en) * | 2013-03-05 | 2013-06-26 | 四川省电力公司达州电业局 | Liquid crystal display (LCD) device for warehouse management |
| CN106546291A (en) * | 2016-10-28 | 2017-03-29 | 成都力雅信息技术有限公司 | A kind of control system for gathering various data |
| CN108931269A (en) * | 2018-06-28 | 2018-12-04 | 广东技术师范学院 | A kind of wireless humiture acquisition system |
| CN116456050A (en) * | 2023-04-11 | 2023-07-18 | 广东视安通智慧显控股份有限公司 | Automatic opening display method of entrance machine |
| CN116456050B (en) * | 2023-04-11 | 2023-12-26 | 广东视安通智慧显控股份有限公司 | Automatic opening display method of entrance machine |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130214 |