CN103278192A - Building indoor temperature and humidity detection system and method based on zigbee technology - Google Patents
Building indoor temperature and humidity detection system and method based on zigbee technology Download PDFInfo
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- CN103278192A CN103278192A CN 201310157178 CN201310157178A CN103278192A CN 103278192 A CN103278192 A CN 103278192A CN 201310157178 CN201310157178 CN 201310157178 CN 201310157178 A CN201310157178 A CN 201310157178A CN 103278192 A CN103278192 A CN 103278192A
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Abstract
The invention discloses a hygrothermograph node monitoring system and a hygrothermograph node monitoring method based on the zigbee technology, and belongs to the technical field of indoor environment wireless detection. The system comprises a voltage sensing modulation circuit, a capacitive sensing modulation circuit, a digital sensing circuit, a wireless processor, a liquid crystal display module, a USB (universal serial bus) to serial port circuit and a keyboard, wherein the outputs of the voltage sensing modulation circuit, the capacitive sensing modulation circuit and the digital sensing circuit are respectively connected with the wireless processor, and the humidity detection results are obtained through data merging processing and are sent to the liquid crystal display module and the USB to serial port circuit to be output. A plurality of sensors are adopted for measuring the humidity, the precision and the reliability of the humidity detection are improved. The CC2530 wireless processor supporting the ZigBee technology is adopted to be used as a main control chip to form a temperature and humidity sensor node, a wireless sensor network is used for networking, and the system and the method have the characteristics that the communication line connection is not needed, the networking is convenient, the precision is high, and the like.
Description
Technical field
The present invention relates to the architecture indoor humiture monitoring of zigbee technology, belong to architecture indoor radio detection technical field.
Background technology
The zigbee technology begins to enter the application stage, and architecture indoor still adopts the cable data collection at present, generally is through data acquisition unit collection and processing temperature-humidity signal, also has digital sense (change is sent) device of output such as the interface that adopts RS232 to send into data acquisition unit.These systems adopt wired mode, exist to connect complexity, and problems such as loose contact often appear in the maintenance and repair difficulty.Humiture is common physical quantity, and at present commonly used have voltage output type, electric capacity output type, a digital output type Temperature Humidity Sensor.But because the singularity of humiture parameter measurement, its accuracy and degree of stability are relatively low, are difficult to obtain high precision and detect.
Summary of the invention
Technical matters to be solved by this invention is at the deficiencies in the prior art, provide a kind of based on
Architecture indoor humiture detection system and the method for zigbee technology.
The present invention is achieved through the following technical solutions and sends out
A kind of Hygrothermograph node monitoring system based on the zigbee technology comprises that voltage-type temperature and humidity sensing modulate circuit, condenser type temperature and humidity sensing modulate circuit, digital Temperature and Humidity sensing circuit, wireless processor, LCD MODULE, USB change serial port circuit and keyboard; Wherein voltage-type temperature and humidity sensing modulate circuit, condenser type temperature and humidity sensing modulate circuit, digital Temperature and Humidity sensing circuit are connected with wireless processor respectively, and wireless processor changes serial port circuit with LCD MODULE, USB respectively, keyboard is connected.
Voltage-type temperature and humidity sensing modulate circuit described in the present invention comprises voltage output type Temperature Humidity Sensor, A/D modular converter, wherein voltage output type Temperature Humidity Sensor is responded to relative temperature-humidity signal, carries out sending wireless processor after the analog to digital conversion through the A/D modular converter.
Condenser type temperature and humidity sensing modulate circuit described in the present invention comprises electric capacity output type Temperature Humidity Sensor, electric capacity freq converting circuit, frequency dividing circuit, wherein electric capacity output type Temperature Humidity Sensor is responded to relative temperature-humidity signal, convert frequency signal to through the electric capacity frequency-conversion circuit, through sending the CC2530 wireless processor after the frequency dividing circuit reduction frequency.
Digital Temperature and Humidity sensing circuit described in the present invention adopts the SHT10 Temperature Humidity Sensor.Wireless processor among the present invention adopts the CC2530 of TI company.Hygrothermograph node based on the zigbee technology of the present invention, LCD MODULE adopt the Liquid Crystal Module of 12864 series with serial ports connection.
The present invention also provides a kind of Hygrothermograph node monitoring method based on the zigbee technology, and its humiture testing result adopts three kinds of sensors of various types to obtain through Data Fusion, comprises the steps:
Steps A: gather voltage output type Temperature Humidity Sensor, electric capacity output type Temperature Humidity Sensor respectively, reach the output signal of three kinds of Temperature Humidity Sensors of digital temperature-humidity sensor by wireless processor, and in standard humidity generator, demarcate respectively;
Step B: will test respectively and assessment of performance through three Temperature Humidity Sensors demarcating, and obtain the expanded uncertainty U of each Temperature Humidity Sensor respectively, and wherein comprise factor k=3, to obtain 99. 7% fiducial probability;
Step C: when formally measuring, obtain the detected value of three Temperature Humidity Sensors respectively and try to achieve its intermediate value;
C-1 all less than the maximal value of U among the step B, then enters step C-3 as the absolute value of the difference of the detected value of each Temperature Humidity Sensor and intermediate value;
C-2, more than or equal to the maximal value among the step B, then this detected value of this Temperature Humidity Sensor is invalid data, abandons this data, obtains effective Temperature Humidity Sensor number at last as the absolute value of the difference of the detected value of certain Temperature Humidity Sensor and intermediate value.
C-3, ask for the weight of each effective Temperature Humidity Sensor by following formula:
C-4 presses the detected value of comprehensive each the effective Temperature Humidity Sensor of following formula, and determines final humiture testing result:
The present invention adopts above technical scheme compared with prior art, has following technique effect:
Hygrothermograph node detection system and method based on the zigbee technology of the present invention, that utilizes the ZigBee technology can carry out networking.Owing to adopt the zigbee network to need not the line of communicating by letter, have and can require increase and decrease node, networking conveniently according to reality, improved practicality, the present invention is by the data fusion of three kinds of dissimilar Temperature Humidity Sensors, the advantage of comprehensive dissimilar sensor has improved accuracy of detection.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and embodiment:
Fig. 1 is structural drawing of the present invention.
Fig. 2 is the system schematic that adopts node of the present invention.
Embodiment
As shown in Figure 1, a kind of Hygrothermograph node monitoring system based on the zigbee technology of the present invention, comprise that voltage-type sensing modulate circuit 1, capacitive sensing modulate circuit 2, digital sense circuit 3, CC2530 wireless processor, LCD MODULE, USB change serial port circuit 7 and keyboard 6, wherein voltage-type sensing modulate circuit 1, capacitive sensing modulate circuit 2, digital sense circuit 3, LCD MODULE, USB change serial port circuit, keyboard is connected with the CC2530 wireless processor respectively.
Voltage-type sensing modulate circuit 1: Temperature Humidity Sensor can adopt the chip of the SHT10 series of U.S. Honeywell Inc. production, be voltage-type output signal, the voltage analog of sensor being exported by high-precision A/D conversion chip ICL7135 is converted to digital quantity, and gives CC2530 wireless processor.
Capacitive sensing modulate circuit 2 among the present invention: electric capacity output type Temperature Humidity Sensor can adopt the Temperature Humidity Sensor of HTS2030 series, by adopting the electric capacity freq converting circuit based on the LM555 oscillator, convert electric capacity to frequency quantity, send the CC2530 wireless processor behind the frequency division, to satisfy the frequency input requirement of processor.
LCD MODULE among the present invention: adopt the Liquid Crystal Module of 12864 series with serial ports connection, save the pin of processor, be used for showing current humidity value.USB changes serial port module: the testing result after the CC2530 wireless processor can being merged is delivered to host computer.
The present invention also provides a kind of Hygrothermograph node monitoring method based on the zigbee technology
Humiture testing result among the present invention adopts three kinds of sensors of various types to obtain through Data Fusion.At first, the CC2530 wireless processor is gathered the output signal of three kinds of Temperature Humidity Sensors respectively, and demarcates respectively in the standard atmosphere generator, realizes the calibration of three kinds of Temperature Humidity Sensors.
Secondly, test respectively and assessment of performance through three Temperature Humidity Sensors demarcating, obtain indexs such as the accuracy, temperature drift, stability of each sensor, non-linear, sluggishness, thereby try to achieve the expanded uncertainty of each Temperature Humidity Sensor, wherein comprise factor k=3, to obtain 99. 7% fiducial probability.
During formal the measurement, obtain the detected value of three Temperature Humidity Sensors respectively and try to achieve its intermediate value.More than or equal to the maximal value among the step B, then this detected value of this Temperature Humidity Sensor is invalid data, abandons this data, obtains effective Temperature Humidity Sensor number at last as the absolute value of the difference of the detected value of certain Temperature Humidity Sensor and intermediate value..
Ask for the weight of each effective Temperature Humidity Sensor by following formula::
Press the detected value of comprehensive each the effective Temperature Humidity Sensor of following formula, and determine final humiture testing result::
As shown in Figure 2, by gathering a plurality of humiture node sensors, the data of Temperature Humidity Sensor are sent to by the zigbee protocol network on the acquisition gateway of sensor, and acquisition gateway converges all data of Temperature Humidity Sensor and by the Internet data is sent on the long-range PC.
Claims (5)
1. Hygrothermograph node monitoring system based on the zigbee technology, it is characterized in that: comprise that voltage-type temperature and humidity sensing modulate circuit, condenser type temperature and humidity sensing modulate circuit, digital Temperature and Humidity sensing circuit, wireless processor, LCD MODULE, USB change serial port circuit and keyboard, described voltage-type temperature and humidity sensing modulate circuit, condenser type temperature and humidity sensing modulate circuit, digital Temperature and Humidity sensing circuit are connected with wireless processor respectively, and described wireless processor changes serial port circuit with LCD MODULE, USB respectively, keyboard is connected.
2. a kind of Hygrothermograph node monitoring system based on the zigbee technology according to claim 1, it is characterized in that: described voltage-type temperature and humidity sensing modulate circuit comprises voltage output type Temperature Humidity Sensor, A/D modular converter, wherein voltage output type Temperature Humidity Sensor is responded to relative temperature-humidity signal, carries out sending wireless processor after the analog to digital conversion through the A/D modular converter.
3. a kind of Hygrothermograph node monitoring system based on the zigbee technology according to claim 1, it is characterized in that: described condenser type temperature and humidity sensing modulate circuit comprises electric capacity output type Temperature Humidity Sensor, electric capacity freq converting circuit, frequency dividing circuit, wherein electric capacity output type Temperature Humidity Sensor is responded to relative temperature-humidity signal, convert frequency signal to through the electric capacity frequency-conversion circuit, through sending wireless processor after the frequency dividing circuit reduction frequency.
4. according to each described a kind of Hygrothermograph node monitoring system based on the zigbee technology in the claim 1 to 3, it is characterized in that: described digital Temperature and Humidity sensing circuit adopts the SHT10 digital temperature-humidity sensor.
5. Hygrothermograph node monitoring method based on the zigbee technology, its humiture testing result adopt three kinds of sensors of various types to obtain through Data Fusion, comprise the steps:
Steps A: gather voltage output type Temperature Humidity Sensor, electric capacity output type Temperature Humidity Sensor respectively, reach the output signal of three kinds of Temperature Humidity Sensors of digital temperature-humidity sensor by wireless processor, and in standard humidity generator, demarcate respectively;
Step B: will test respectively and assessment of performance through three Temperature Humidity Sensors demarcating, and obtain the expanded uncertainty U of each Temperature Humidity Sensor respectively, and wherein comprise factor k=3, to obtain 99. 7% fiducial probability;
Step C: when formally measuring, obtain the detected value of three Temperature Humidity Sensors respectively and try to achieve its intermediate value;
C-1 all less than the maximal value of U among the step B, then enters step C-3 as the absolute value of the difference of the detected value of each Temperature Humidity Sensor and intermediate value;
C-2, more than or equal to the maximal value among the step B, then this detected value of this Temperature Humidity Sensor is invalid data, abandons this data, obtains effective Temperature Humidity Sensor number at last as the absolute value of the difference of the detected value of certain Temperature Humidity Sensor and intermediate value.
C-3, ask for the weight of each effective Temperature Humidity Sensor:
C-4, the comprehensively detected value of each effective Temperature Humidity Sensor, and definite final humiture testing result.
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| CN 201310157178 CN103278192A (en) | 2013-05-02 | 2013-05-02 | Building indoor temperature and humidity detection system and method based on zigbee technology |
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| CN 201310157178 CN103278192A (en) | 2013-05-02 | 2013-05-02 | Building indoor temperature and humidity detection system and method based on zigbee technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299393A (en) * | 2014-11-07 | 2015-01-21 | 江苏科技大学 | Ancient building environmental protection system based on wireless sensor network |
| CN104677415A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨智木科技有限公司 | Detection system for temperature and humidity of central air conditioner based on single bus |
| CN106153114A (en) * | 2016-08-09 | 2016-11-23 | 安徽喜悦信息科技有限公司 | A kind of remotely control intelligent building monitoring system |
| CN106462616A (en) * | 2014-05-30 | 2017-02-22 | 苹果公司 | Managing user information |
| CN106441440A (en) * | 2016-10-19 | 2017-02-22 | 贵州省流通环节食品安全检验中心 | Laboratory temperature and humidity detector |
| US11056217B2 (en) | 2014-05-30 | 2021-07-06 | Apple Inc. | Systems and methods for facilitating health research using a personal wearable device with research mode |
-
2013
- 2013-05-02 CN CN 201310157178 patent/CN103278192A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677415A (en) * | 2013-12-02 | 2015-06-03 | 哈尔滨智木科技有限公司 | Detection system for temperature and humidity of central air conditioner based on single bus |
| CN106462616A (en) * | 2014-05-30 | 2017-02-22 | 苹果公司 | Managing user information |
| US10290367B2 (en) | 2014-05-30 | 2019-05-14 | Apple Inc. | Managing user information—background processing |
| CN110400612A (en) * | 2014-05-30 | 2019-11-01 | 苹果公司 | Managing user information |
| US11056217B2 (en) | 2014-05-30 | 2021-07-06 | Apple Inc. | Systems and methods for facilitating health research using a personal wearable device with research mode |
| CN113284574A (en) * | 2014-05-30 | 2021-08-20 | 苹果公司 | Managing user information |
| US11404146B2 (en) | 2014-05-30 | 2022-08-02 | Apple Inc. | Managing user information—data type extension |
| CN104299393A (en) * | 2014-11-07 | 2015-01-21 | 江苏科技大学 | Ancient building environmental protection system based on wireless sensor network |
| CN106153114A (en) * | 2016-08-09 | 2016-11-23 | 安徽喜悦信息科技有限公司 | A kind of remotely control intelligent building monitoring system |
| CN106441440A (en) * | 2016-10-19 | 2017-02-22 | 贵州省流通环节食品安全检验中心 | Laboratory temperature and humidity detector |
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Application publication date: 20130904 |