CN203192215U - Temperature and humidity acquisition device based on wireless universal serial bus - Google Patents
Temperature and humidity acquisition device based on wireless universal serial bus Download PDFInfo
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- CN203192215U CN203192215U CN 201320219109 CN201320219109U CN203192215U CN 203192215 U CN203192215 U CN 203192215U CN 201320219109 CN201320219109 CN 201320219109 CN 201320219109 U CN201320219109 U CN 201320219109U CN 203192215 U CN203192215 U CN 203192215U
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- serial bus
- universal serial
- chip microcomputer
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- temperature
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Abstract
The utility model relates to the field of electronic information, in particular to a temperature and humidity acquisition device based on a wireless universal serial bus. The temperature and humidity acquisition device comprises a temperature and humidity data acquisition part and a data recording and processing part, wherein the temperature and humidity data acquisition part comprises a temperature and humidity sensor, a single chip microcomputer A, a wireless universal serial bus module A and a power supply A; the data recording and processing part comprises a computer, an interface circuit, a single chip microcomputer B, a wireless universal serial bus module B and a power supply B; and the wireless universal serial bus module A and the wireless universal serial bus module B are connected in a wireless way. Since the data acquisition part and the data recording part of the temperature and humidity acquisition device are connected in the wireless way, defects of cable connection can be overcome, and the wireless connection has the advantages of high interference resistance and low power consumption. The data acquisition part can be provided with a plurality of acquisition points, so the real-time temperature and humidity of multiple measurement points can be directly displayed and recorded on the computer.
Description
Technical field
The utility model relates to electronic information field, is specifically related to a kind of humiture collection device based on radio universal serial bus.
Background technology
In fields such as industrial and agricultural production, daily life, meteorological observation, scientific researches, often need measure in real time environment temperature and humidity.Traditional metering system adopts mercury thermometer and psychrometer to look into algorithm, and it is bigger to be subjected to all multifactor influences such as personnel, place, space during use, and they exist problems such as error is big, operation inconvenience.
Main by wired mode Data transmission between the humiture part of data acquisition of present non real-time singlechip computer system and the demonstration recording section, wire signal transmission mode signal is decayed easily and is subjected to electromagnetic interference (EMI), and the also inconvenience of installing and connect up.
Summary of the invention
The utility model provides a kind of humiture collection device based on radio universal serial bus, and the use wireless transmission is transmitted the signal between the each several part circuit, can effectively avoid the drawback of wire transmission signal like this.
Its concrete technical scheme is as follows:
A kind of humiture collection device based on radio universal serial bus, comprise humiture part of data acquisition and data recording and processing part, described humiture part of data acquisition comprises Temperature Humidity Sensor, Chip Microcomputer A, radio universal serial bus modules A and power supply A, wherein Chip Microcomputer A links to each other with the radio universal serial bus modules A with Temperature Humidity Sensor respectively, and power supply A links to each other with the radio universal serial bus modules A with Chip Microcomputer A respectively; Described data recording and processing partly comprises computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B and power supply B, wherein computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B link to each other successively, and power supply B links to each other with radio universal serial bus module B with single-chip microcomputer B respectively; Communicate to connect by wireless mode between radio universal serial bus modules A and the B.
Described Temperature Humidity Sensor adopts the SHT21 sensor.
Described Chip Microcomputer A and B all select the MSP430F series monolithic for use.
Described radio universal serial bus modules A and B all adopt the CYWUSB6935 communication chip.
Described humiture part of data acquisition has several.
The beneficial effects of the utility model:
1. the utility model humiture collection device by wireless connections, overcome the shortcoming that wire cable connects, and the wireless connections antijamming capability is strong between its part of data acquisition and the data recording portion, and is low in energy consumption;
2. part of data acquisition can be provided with a plurality of collection points, so just can show the real-time humiture of a plurality of measurement points on computers intuitively and notes.
Description of drawings
Fig. 1 is structure principle chart of the present utility model.
Embodiment
As shown in Figure 1, the utility model is based on the humiture collection device of radio universal serial bus, comprise humiture part of data acquisition and data recording and processing part, described humiture part of data acquisition comprises Temperature Humidity Sensor, Chip Microcomputer A, radio universal serial bus modules A and power supply A, wherein Chip Microcomputer A links to each other with the radio universal serial bus modules A with Temperature Humidity Sensor respectively, and power supply A links to each other with the radio universal serial bus modules A with Chip Microcomputer A respectively; Described data recording and processing partly comprises computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B and power supply B, wherein computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B link to each other successively, and power supply B links to each other with radio universal serial bus module B with single-chip microcomputer B respectively; Link to each other by the SPI port between radio universal serial bus module and the single-chip microcomputer.Communicate to connect by wireless mode between radio universal serial bus modules A and the B.
Just expressed a humiture part of data acquisition among Fig. 1, in the practical work process, can be provided with several humiture part of data acquisition, so just can gather the humiture of a plurality of points.
Wherein Temperature Humidity Sensor is with the digital SHT21 sensor of Sensirion company.SHT21 belongs to the paster encapsulation series in the Sensirion Temperature Humidity Sensor family, is the humidity sensor of size minimum.The SHT21 Temperature Humidity Sensor is integrated in sensitive element, demarcation storer and digital interface on the substrate of 3x3mm, the digital signal that output is demarcated fully.In addition, sensor also provides the recognition and tracking information of electronics.Except the sensitive element part, the sensor appearance adopts Overmolded, and can reduce sensor and be subjected to extraneous factor as aging, vibrations, the influence of volatility chemical gas guarantees that it has good stable.Therefore, this product has the quality brilliance, response is rapid, antijamming capability is strong, the cost performance advantages of higher; It is easy to be connected with single-chip microcomputer simultaneously, can remove A/D module, reduces hardware cost, simplifies circuit system.
Chip Microcomputer A and B MSP430F series monolithic.Its 16 RISC CPU can not only provide required signal handling capacity, but also has ultralow working current.
Radio universal serial bus modules A and B all adopt the CYWUSB6935 communication chip, CYWUSB6935 inner integrated serial data interface (SPI), string also/radio-frequency (RF) transceiver of parallel-to-serial converter (SERDES), synthesizer (synthesizer), 2.4 GHz, adopt Gaussian Frequency Shift Keying modulator-demodular unit (GFSK Modem) and direct sequence spread spectrum (DSSS) digital baseband block.The user can arrange radio frequency and digital baseband part neatly by control signal.In order further to optimize performance, CYWUSB6935 can allow each main system can connect many group peripherals, and communication distance can reach 50 meters for the user provides 3822 independently channels in theory.
Interface circuit adopts asynchronous serial transceiver and serial port chip MAX232 to finish Transistor-Transistor Logic level to the conversion of RS232C level.It realizes the serial data communication function between single-chip microcomputer and the computing machine.
Adopting the 3V battery in this device is single-chip microcomputer and radio universal serial bus module for power supply, and standard direct current power supply interface is provided.For the power-on time of battery in the prolongation system, system's critical piece enters park mode fast when idle, and its peripheral module also enters dormant state.
Humiture collection device of the present utility model, its course of work is as follows: the signal of Temperature Humidity Sensor is sent to the radio universal serial bus modules A by Chip Microcomputer A, in the radio universal serial bus modules A data that receive are encoded according to the CRC agreement, send to radio universal serial bus module B.At receiving end, signal is partly imported by receiving antenna, decodes via radio universal serial bus module B again, be sent to single-chip microcomputer B by the radio universal serial bus module, by interface circuit, B is sent to computing machine by single-chip microcomputer, the multiple signals that computer recording, analysis and processing collect at last.
Claims (5)
1. humiture collection device based on radio universal serial bus, comprise humiture part of data acquisition and data recording and processing part, it is characterized in that: described humiture part of data acquisition comprises Temperature Humidity Sensor, Chip Microcomputer A, radio universal serial bus modules A and power supply A, wherein Chip Microcomputer A links to each other with the radio universal serial bus modules A with Temperature Humidity Sensor respectively, and power supply A links to each other with the radio universal serial bus modules A with Chip Microcomputer A respectively; Described data recording and processing partly comprises computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B and power supply B, wherein computing machine, interface circuit, single-chip microcomputer B, radio universal serial bus module B link to each other successively, and power supply B links to each other with radio universal serial bus module B with single-chip microcomputer B respectively; Communicate to connect by wireless mode between radio universal serial bus modules A and the B.
2. humiture collection device according to claim 1 is characterized in that: described Temperature Humidity Sensor employing SHT21 sensor.
3. humiture collection device according to claim 1, it is characterized in that: described Chip Microcomputer A and B all select the MSP430F series monolithic for use.
4. humiture collection device according to claim 1, it is characterized in that: described radio universal serial bus modules A and B all adopt the CYWUSB6935 communication chip.
5. humiture collection device according to claim 1, it is characterized in that: described humiture part of data acquisition has several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219109 CN203192215U (en) | 2013-04-26 | 2013-04-26 | Temperature and humidity acquisition device based on wireless universal serial bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219109 CN203192215U (en) | 2013-04-26 | 2013-04-26 | Temperature and humidity acquisition device based on wireless universal serial bus |
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| Publication Number | Publication Date |
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| CN203192215U true CN203192215U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320219109 Expired - Fee Related CN203192215U (en) | 2013-04-26 | 2013-04-26 | Temperature and humidity acquisition device based on wireless universal serial bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163768A (en) * | 2018-11-16 | 2019-01-08 | 岱特智能科技（上海）有限公司 | A kind of temperature/humiditydetection detection system based on wireless sensor |
-
2013
- 2013-04-26 CN CN 201320219109 patent/CN203192215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163768A (en) * | 2018-11-16 | 2019-01-08 | 岱特智能科技（上海）有限公司 | A kind of temperature/humiditydetection detection system based on wireless sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20150426 |
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| EXPY | Termination of patent right or utility model |