CN203479327U - Humiture measurement instrument - Google Patents
Humiture measurement instrument Download PDFInfo
- Publication number
- CN203479327U CN203479327U CN201320522983.6U CN201320522983U CN203479327U CN 203479327 U CN203479327 U CN 203479327U CN 201320522983 U CN201320522983 U CN 201320522983U CN 203479327 U CN203479327 U CN 203479327U
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- humiture
- data
- power supply
- e2prom
- peripheral circuits
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Abstract
The utility model provides a humiture measurement instrument. The humiture measurement instrument includes a power supply, a power supply switch, a single chip, a full storage indication lamp, a display module, a clock chip and peripheral circuits thereof, a key set, an E2PROM, a USB interface and peripheral circuits thereof, and a humiture sensor, wherein the power supply switch is connected with the power supply and the single chip, the single chip is connected with the display module, the clock chip and the peripheral circuits thereof, the key set, the E2PROM, the USB interface and the peripheral circuits thereof, and the humiture sensor, and the clock chip and the peripheral circuits thereof are directly connected with the power supply. The humiture sensor converts non electric values of the temperature and humidity into digital electric value. The single chips drives the humiture sensor and the clock chip to work, reads humiture data and corresponding time in real time, stores the date read and the corresponding time in the E2PROM, processes the data read, and drives a liquid crystal module to work and display humiture information and time information. The USB interface and the peripheral circuits thereof are interfaces for the device to exchange data with the external part, and the USB interface conforms to a USB communication protocol. The key set comprises a humiture measurement start/stop key, a humiture data transmitting/stop key, and a time setting key. The full storage indication lamp turns on when the E2PROM is full of data. The humiture measurement instrument is suitable for humiture data acquisition in industrial fields.
Description
Technical field
The utility model belongs to measurement sensory field, has been specifically related to a kind of temp .-humidity measuring apparatus based on 51 single-chip microcomputers.
Background technology
Temperature and humidity and people's life and commercial production are closely bound up, people have proposed a lot of methods and have gone to measure them, as surveyed mercury thermometer and the alcohol thermometer of body temperature, survey the kerosene thermometer of room temperature, the thermopair of industrial occasions, the hair hygrometer of measuring moisture, psychrometer etc.Above-mentioned thermometric and hygrometric technology respectively have relative merits, as convenient in mercury thermometer application, but general the measurement for body temperature, data need manually be read, and data can not store and upload, and traditional hygrometric instrument adopts classical sense moor reason mostly, because volume is larger, there is mechanical part, incompatible with control electronics, be not enough to meet modern development in science and technology.Along with the development of electronic technology, Temperature Humidity Sensor has been born, and Temperature Humidity Sensor can be converted to digital electric weight by the non electrical quantity of temperature and humidity, and data can be stored and be uploaded to host computer by interface, can be used for data acquisition and analysis.
Summary of the invention
The utility model has solved the incompatible shortcoming of traditional thermometric and hygrometric technology and control electronics, and the data of surveying can be stored and can be uploaded.
The technical solution adopted in the utility model is:
A temp .-humidity measuring apparatus, is characterized in that, comprising: power supply, power switch, single-chip microcomputer, storage be pilot lamp, display module, clock chip and peripheral circuit, button group, E2PROM, USB interface and peripheral circuit and Temperature Humidity Sensor completely; Wherein power switch is connected with single-chip microcomputer with power supply respectively, and single-chip microcomputer is connected with Temperature Humidity Sensor with display module, clock chip and peripheral circuit thereof, button group, E2PROM, USB interface and peripheral circuit thereof respectively again, and clock chip is directly connected with power supply.
Described a kind of temp .-humidity measuring apparatus, is characterized in that: single-chip microcomputer adopts paster STC89C52RC-40C-PLCC44STC single-chip microcomputer.
Described a kind of temp .-humidity measuring apparatus, is characterized in that: Temperature Humidity Sensor adopts SHT10 digital hygro sensor.
Described a kind of temp .-humidity measuring apparatus, is characterized in that: display module adopts LCD1602 LCDs.
Described a kind of temp .-humidity measuring apparatus, is characterized in that: E2PROM adopts 24C64, the data-carrier store that size is not lost for the power-off data of 8192B.
Described a kind of temp .-humidity measuring apparatus, is characterized in that: clock chip adopts DS1302.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the shortcoming that has overcome traditional thermometric and hygrometric technology, the data of surveying can be stored and can be uploaded, and the information that packet contains has humiture data and corresponding time, can be used for humiture data acquisition and the data analysis of industrial occasions.
2, single-chip microcomputer adopts usb communication agreement and host computer to communicate, and transmission speed is fast.
Accompanying drawing explanation
Accompanying drawing is the structure principle chart of a kind of temp .-humidity measuring apparatus of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in the figure, by power supply, power switch, single-chip microcomputer, storage, completely pilot lamp, display module, clock chip and peripheral circuit, button group, E2PROM, USB interface and peripheral circuit thereof and Temperature Humidity Sensor form a kind of temp .-humidity measuring apparatus of the utility model.
Button group is comprised of 1, temperature and humidity measurement start/stop key, 1 of humiture data transmission/stop key and time setting key, wherein time setting key is by 1 of shift key, numerical value adds 1 of function key, determine 1 composition of key, these buttons are directly connected with the I/O mouth of single-chip microcomputer, and single-chip microcomputer can be pressed with disconnection and detect it.
Display module adopts LCD1602 LCDs, is that two row show, every row can show 16 characters, the first row displaying time information, and the second row shows humiture information.
Temperature Humidity Sensor adopts SHT10 digital hygro sensor, it is characterized in that temperature sensor and humidity sensor to be integrated on a chip, has 4 pins, be VCC pin, GND pin, DATA pin, SCL pin, DATA pin data adopts serial transmission mode.The features such as it is little that it has volume, and the response time is short, and antijamming capability is strong, low-power consumption.
E2PROM is the data-carrier store that a kind of power-off data are not lost, and adopts I
2c bus and single-chip microcomputer communicate, the utility model adopts the E2PROM that model is 24C64, its size is 8192B, with it, preserve humiture data and the corresponding time collecting, the corresponding time only stores the moon/day/time/minute/second, measuring intervals of TIME is determined as required, data start storage from the 3rd address location of 24C64, the first two address location is used for storing the tail address of each measurement data, like this, next time is when remeasure, next address unit from this address is started to store data, if data are filled with, now single-chip microcomputer stops Temperature Humidity Sensor and data storage, completely pilot lamp is bright in storage, the second row of liquid crystal is removed and is shown, now press temperature and humidity measurement start/stop key, start Temperature Humidity Sensor, storage completely pilot lamp is gone out, data start storage from the 3rd address location of 24C64, data in the past will be capped, after data are filled with, also can upload the data to host computer by USB interface and peripheral circuit thereof.
USB interface and peripheral circuit thereof are this equipment and the extraneous interface that carries out exchanges data, follow usb communication agreement, and it is by USB interface, USB connect chip CH341T, 1 12MHZ crystal oscillator, resistance and electric capacity form, and single-chip microcomputer is passed to host computer by the data in E2PROM by this interface.
If use before this equipment for the first time or after changing power supply, need set the time, the process that time is set is as follows: single-chip microcomputer detects shift key and is pressed, stop Temperature Humidity Sensor, the work of clock chip and data storage, and ten that position is fixed in Hour Minute Second hour, then by numerical value, adding function key sets this numerical value, after setting completes, press shift key, position is by the position fixing on hour, by numerical value, adding function key again sets this numerical value, after setting completes, press again shift key, by that analogy, be respectively minute ten, a position of dividing, second ten, the position of second, the kilobit in year, hundred, ten, individual position, month ten, individual position, day ten, individual position, after setting, press definite key, completed the setting of time.In attention assignment procedure, liquid crystal shows the time state of current setting constantly, and display format is: the first row: time/minute/second, the second row: Year/Month/Day.
The voltage of power supply is+5V directly to give clock chip and peripheral circuit power supply thereof; After power switch disconnects, clock chip and peripheral circuit thereof can work, but other parts will quit work, and equipment is in low power consumpting state, and after power switch closure, whole circuit works.
The operating process of equipment is as follows: press power switch, if use before this equipment for the first time or after changing power supply, need set the time, by time setting key, set after the time, the first row of liquid crystal can show real-time time, and the form of time is: time/minute/second, other situations, press on power switch liquid crystal and directly show current time, without the time of carrying out setting, then press temperature and humidity measurement start/stop key, start temperature and humidity measurement, liquid crystal the second row shows humiture information, again press temperature and humidity measurement start/stop key, stop temperature and humidity measurement, liquid crystal the second row is removed and is shown, with this, repeatedly can carry out the operation of start/stop temperature and humidity measurement, when storage is when completely pilot lamp is bright, now single-chip microcomputer stops Temperature Humidity Sensor and data storage, the second row of liquid crystal is removed and is shown, now again press temperature and humidity measurement start/stop key, start Temperature Humidity Sensor, storage completely pilot lamp is gone out, data start storage from the 3rd address location of 24C64, data in the past will be capped, after data are filled with, also can upload the data to host computer by USB interface and peripheral circuit thereof.After each DATA REASONING finishes, press humiture data transmission/stop key, single-chip microcomputer uploads to host computer by USB interface and peripheral circuit thereof by data measured, after data upload completes, presses humiture data transmission/stop key, and single-chip microcomputer stops sending data.
Claims (6)
1. a temp .-humidity measuring apparatus, is characterized in that, comprising: power supply, power switch, single-chip microcomputer, storage be pilot lamp, display module, clock chip and peripheral circuit, button group, E2PROM, USB interface and peripheral circuit and Temperature Humidity Sensor completely; Wherein power switch is connected with single-chip microcomputer with power supply respectively, and single-chip microcomputer is connected with Temperature Humidity Sensor with display module, clock chip and peripheral circuit thereof, button group, E2PROM, USB interface and peripheral circuit thereof respectively again, and clock chip is directly connected with power supply.
2. a kind of temp .-humidity measuring apparatus according to claim 1, is characterized in that: single-chip microcomputer adopts paster STC89C52RC-40C-PLCC44STC single-chip microcomputer.
3. a kind of temp .-humidity measuring apparatus according to claim 1, is characterized in that: Temperature Humidity Sensor adopts SHT10 digital hygro sensor.
4. a kind of temp .-humidity measuring apparatus according to claim 1, is characterized in that: display module adopts LCD1602 LCDs.
5. a kind of temp .-humidity measuring apparatus according to claim 1, is characterized in that: E2PROM adopts 24C64, the data-carrier store that size is not lost for the power-off data of 8192B.
6. a kind of temp .-humidity measuring apparatus according to claim 1, is characterized in that: clock chip adopts DS1302.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522983.6U CN203479327U (en) | 2013-08-26 | 2013-08-26 | Humiture measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522983.6U CN203479327U (en) | 2013-08-26 | 2013-08-26 | Humiture measurement instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479327U true CN203479327U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522983.6U Expired - Fee Related CN203479327U (en) | 2013-08-26 | 2013-08-26 | Humiture measurement instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900637A (en) * | 2014-03-17 | 2014-07-02 | 华南理工大学 | Laboratory environment detection instrument |
-
2013
- 2013-08-26 CN CN201320522983.6U patent/CN203479327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900637A (en) * | 2014-03-17 | 2014-07-02 | 华南理工大学 | Laboratory environment detection instrument |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140826 |
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| EXPY | Termination of patent right or utility model |