CN201110768Y - Large-capacity humidity and temperature recorder - Google Patents

Large-capacity humidity and temperature recorder Download PDF

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Publication number
CN201110768Y
CN201110768Y CNU2006201234727U CN200620123472U CN201110768Y CN 201110768 Y CN201110768 Y CN 201110768Y CN U2006201234727 U CNU2006201234727 U CN U2006201234727U CN 200620123472 U CN200620123472 U CN 200620123472U CN 201110768 Y CN201110768 Y CN 201110768Y
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CN
China
Prior art keywords
interface
port
clock
chip
data
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2006201234727U
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Chinese (zh)
Inventor
毛飞
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Beijing Kaiweifeng Science & Technology Development Co Ltd
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Beijing Kaiweifeng Science & Technology Development Co Ltd
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Filing date
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Priority to CNU2006201234727U priority Critical patent/CN201110768Y/en
Application granted granted Critical
Publication of CN201110768Y publication Critical patent/CN201110768Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the field of measuring instruments, namely a large volume temperature-humidity recorder which comprises a circuit board (1), a liquid crystal display (2), a single chip computer (3), a clock (4), a button cell (5), a data memory (6), a program writing port (7), a keyboard interface (8), a lithium cell (9), a power switch (10), a transducer (11), a communication port (12), a charging port (13), a plastic casing (14) and keys (15). The large volume temperature-humidity recorder can be used to measure, record and analyze signals of air temperature and air humidity in various fields.

Description

High capacity humiture registering instrument
Technical field:
The utility model belongs to the surveying instrument field, can be used for measurement, record and analysis to air themperature and air humidity signal in each field.
Background technology
In use there is following problem in existing portable warm moisture instruments more: 1, the storage data volume is few, does not much have the data hold function, can only gather demonstration in real time, can not store data so that research.2, on power supply was handled, the battery service efficiency was lower, the battery working time of failing fully to prolong, and power consumption is big during work measurement simultaneously, can not in time close obsolete function.3, because the precision of measuring is not very highly can not measure dew point in high quality.4, temperature calibration is often made standard with a standard thermometer and is got final product, and realizes and the demarcation standard of humidity is difficult, and wet-and-dry bulb thermometer and some common pointer hygrometers can not be used for demarcation, and precision can't guarantee.5, precision and long-time stability are not fine, usually the moisture measurement precision be difficult to reach ± 2%~± 3%RH, in actual use, because the influence of extraneous dust, greasy dirt and harmful gas, the time one, long measuring accuracy must descend.6, external product is in the majority and expensive, and after sale service is difficult to guarantee.
Summary of the invention
The purpose of this utility model adopts the intelligent Temperature Humidity Sensor SHT11 of new single chip, realizes non-calibrating, can measure dew point accurately simultaneously, guarantees that product has good reliability, higher degree of accuracy and long-term stability.Powered battery is selected super low power consuming single chip processor and peripheral chip for use, and this product can be worked for a long time.Adopt the RS232 mode to carry out data communication, can carry out data analysis and processing on computers.
High capacity humiture registering instrument is write inbound port (7), keyboard interface (8), lithium battery (9), power switch (10), sensor (11), PORT COM (12), charging port (13), plastic casing (14), is formed jointly by circuit board (1), LCD (2), single-chip microcomputer (3), clock (4), button cell (5), data-carrier store (6), program; Button (15), LCD (2) constitute human-computer interaction interface at registering instrument; LCD (2), single-chip microcomputer (3), clock (4), button cell (5), data-carrier store (6), program are write inbound port (7), keyboard interface (8), lithium battery (9), power switch (10), sensor (11), PORT COM (12), charging port (13) and are welded on the circuit board (1), circuit board (1) is fixed on the inside of plastic casing (14) with screw, and button (15) is fixed on the front surface of plastic casing (14) and is connected with circuit board (1) by keyboard interface (8); Lithium battery (9) is fixed on the rear portion of plastic casing (14).
2. high capacity humiture registering instrument, it is characterized in that the main control circuit of circuit part by the RS232 interface of single-chip microcomputer C8051F020, real-time clock PCF8563, data-carrier store 29LV040, MAX3223 expansion, keystroke interface chip 7279, level conversion device REG1117, charge controller LTC4055, linear power supply controller TPS7333, Temperature Humidity Sensor and for clock chip separately the button cell of power supply form jointly; Single-chip microcomputer C8051F020 is as the core of The whole control, by parallel port growth data storer 29LV040 and LCD 12864, by IIC interface expansion clock PCF8563 and keystroke interface chip 7279, connect MAX3223 expansion RS232 communication port by the UART interface, connect sensor by general pin; Lithium battery is the total system power supply by charge controller LTC4055, linear power supply controller TPS7333, and button cell is that clock chip is powered separately when not starting shooting.
The technical scheme that its technical matters that solves the utility model adopts:
Single-chip microcomputer is selected low-power scm C8051F020 for use, and 64KFlash is arranged in the sheet, and enough programming spaces are arranged, and can the storage of collected data; The Asynchronous Serial Interface that two full duplexs are arranged, serial ports 1 uses MAX3223 to be extended to the RS232 interface, realizes the data transmission of PC; The comparer of single-chip microcomputer inside is realized the monitoring to cell voltage; FLASH storer 29LV040 has realized the large-capacity data storage; Real-time clock PCF8563 provides time reference for system, can regularly deposit data-carrier store in according to the value of setting image data, also can wake single-chip microcomputer up simultaneously and gather automatically; Thereby C8051F020 uses general pin and SHT11 communication to obtain the temperature humidity data and calculate the dew point data; Data that collect and various status information offer the user by 12864 LCD; Keystroke interface chip 7279 can be accepted user's button operation, and time, parameter etc. are set.Adopting lithium battery power supply, is the total system power supply by charge controller LTC4055, linear power supply controller TPS7333; Chip is selected the low-power consumption chip of 3.3V power supply for use, can close chip and enter low-power consumption mode when not using, thereby reach the prolongation battery-powered time.
The beneficial effects of the utility model:
1. employing high-performance sensors, temperature measurement range-40~123.8 ℃, precision is ± 0.4 ℃, and humidity range is 0~100%RH, and precision is ± 3%RH can calculate dew point accurately simultaneously.
2. exempt from extra demarcation, have relevant safeguard measure, long-time stability are good.
3. the Flash storer of single-chip microcomputer and outer extension memory can be used for the storage of collected data.
4. have clock arousal function and automatic acquisition function.
5. employing low power dissipation design has the Power Supply Monitoring function, and the working time is long.
6. volume is little, carries, easy to use.
Description of drawings
Fig. 1 is an object construction front elevational schematic of the present utility model.
Fig. 2 is that system of the present utility model forms structural representation.
Embodiment:
Lithium battery provides 3V power supply by charge controller LTC4055, linear power supply controller TPS7333 for total system; Charge controller LTC4055 may command transformer is given lithium cell charging simultaneously.
Become man-machine interface by LCD LCD, key groups.Can finish the setting of various parameters such as system date and time, connection sensor parameters, drainage pattern, memory gap by man-machine interface.Data and the system time gathered after setting is finished can show on liquid crystal.
Can directly link to each other by the RS232 mouth, carry out data transmission and analysis by upper computer software with PC.
Temperature Humidity Sensor SHT11 and C8051F020 join, single-chip microcomputer is behind electrification reset, enter low-power consumption mode, PCF8563 wakes single-chip microcomputer up every the regular hour by clock chip, and C8051F020 begins measuring command to humiture dew point survey sensor SHT11, carries out the measurement of humiture, through one period processing time, the humiture of reading back again data are carried out linearization calculation and temperature compensation by software, then with accurate data presentation.
FLASH storer 29LV040 is used for realizing the mass data storage of 40,000 records
All chips are all selected the low-power consumption chip of 3.3V power supply for use, can close chip and enter low-power consumption mode when not using, thereby reach the prolongation battery-powered time.

Claims (2)

1. high capacity humiture registering instrument is characterized in that being write inbound port (7), keyboard interface (8), lithium battery (9), power switch (10), sensor (11), PORT COM (12), charging port (13), plastic casing (14), being formed jointly by circuit board (1), LCD (2), single-chip microcomputer (3), clock (4), button cell (5), data-carrier store (6), program; Button (15), LCD (2) constitute human-computer interaction interface at registering instrument; LCD (2), single-chip microcomputer (3), clock (4), battery (5), data-carrier store (6), program are write inbound port (7), keyboard interface (8), lithium battery (9), power switch (10), sensor (11), PORT COM (12), charging port (13) and are welded on the circuit board (1), circuit board (1) is fixed on the inside of plastic casing (14) with screw, and button (15) is fixed on the front surface of plastic casing (14) and is connected with circuit board (1) by keyboard interface (8); Lithium battery (9) is fixed on the rear portion of plastic casing (14).
2. high capacity humiture registering instrument as claimed in claim 1, the main control circuit that it is characterized in that circuit part by the RS232 interface of single-chip microcomputer C8051F020, real-time clock PCF8563, data-carrier store 29LV040, MAX3223 expansion, keystroke interface chip 7279, level conversion device REG1117, charge controller LTC4055, linear power supply controller TPS7333, Temperature Humidity Sensor and for clock chip separately the button cell of power supply form jointly; Single-chip microcomputer C8051F020 is as the core of The whole control, by parallel port growth data storer 29LV040 and LCD 12864, by IIC interface expansion clock PCF8563 and keystroke interface chip 7279, connect MAX3223 expansion RS232 communication port by the UART interface, connect sensor by general pin; Lithium battery is the total system power supply by charge controller LTC4055, linear power supply controller TPS7333, and button cell is that clock chip is powered separately when not starting shooting.
CNU2006201234727U 2006-08-07 2006-08-07 Large-capacity humidity and temperature recorder Expired - Fee Related CN201110768Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201234727U CN201110768Y (en) 2006-08-07 2006-08-07 Large-capacity humidity and temperature recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201234727U CN201110768Y (en) 2006-08-07 2006-08-07 Large-capacity humidity and temperature recorder

Publications (1)

Publication Number Publication Date
CN201110768Y true CN201110768Y (en) 2008-09-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006201234727U Expired - Fee Related CN201110768Y (en) 2006-08-07 2006-08-07 Large-capacity humidity and temperature recorder

Country Status (1)

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CN (1) CN201110768Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288309A (en) * 2011-04-22 2011-12-21 永道无线射频标签(扬州)有限公司 Temperature collector
CN107702742A (en) * 2016-08-08 2018-02-16 天津优蓝科技有限公司 A kind of intelligent radio humiture recorder
CN108548549A (en) * 2018-04-02 2018-09-18 河北泽华伟业科技股份有限公司 A kind of temperature and humidity intelligent recorder of super low-power consumption

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288309A (en) * 2011-04-22 2011-12-21 永道无线射频标签(扬州)有限公司 Temperature collector
CN107702742A (en) * 2016-08-08 2018-02-16 天津优蓝科技有限公司 A kind of intelligent radio humiture recorder
CN108548549A (en) * 2018-04-02 2018-09-18 河北泽华伟业科技股份有限公司 A kind of temperature and humidity intelligent recorder of super low-power consumption

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C57 Notification of unclear or unknown address
DD01 Delivery of document by public notice

Addressee: Mao Fei

Document name: Notification of patent rights granted to utility models and formalities for registration

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: Technical building D220, East Campus of Kasetsart University, 2 Qinghua Dong Road, Beijing, Haidian District, 100083

Patentee after: Beijing Kaiweifeng Science & Technology Development Co., Ltd.

Address before: Room 406, clear business building, No. 5 building, 12 Qing Qing Road, Qinghe Road, Beijing, Haidian District, Longgang, China: 100085

Patentee before: Beijing Kaiweifeng Science & Technology Development Co., Ltd.

DD01 Delivery of document by public notice

Addressee: Mao Fei

Document name: Notification of Termination of Patent Right

Addressee: Mao Fei

Document name: Notification of Termination of Patent Right

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080903

Termination date: 20100807

Granted publication date: 20080903

Termination date: 20100807