CN2781340Y - Active radio temp sensor - Google Patents
Active radio temp sensor Download PDFInfo
- Publication number
- CN2781340Y CN2781340Y CN200520072777.5U CN200520072777U CN2781340Y CN 2781340 Y CN2781340 Y CN 2781340Y CN 200520072777 U CN200520072777 U CN 200520072777U CN 2781340 Y CN2781340 Y CN 2781340Y
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- CN
- China
- Prior art keywords
- temperature sensor
- converter
- microprocessor
- power supply
- wireless
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- Expired - Lifetime
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses an active wireless temperature sensor, which is characterized in that the utility model is composed of a temperature sensor U1, a conditioning circuit U2, an A/D converter U3, a microprocessor U4 with the memory recorded with unchangeable numbers or codes, a wireless transceiver circuit U5, a radio frequency antenna U6 and a power supply U7, wherein the power supply U7 is used for the power supply of a corresponding work unit and output signals of the temperature sensor U1 are connected with the input of the conditioning circuit U2. After the output signals are compensated and adjusted by the conditioning circuit U2, the output signals are transferred to the input end of the A/D converter U3. Then the output signals are converted by the A/D converter into digital signals, and the digital signals are transferred to the microprocessor U4. The digital signals output by the A/D converter and the unchangeable numbers or codes recorded in the memory of the microprocessor U4 are packed and transmitted by the microprocessor U4 to the wireless transceiver circuit U5, and then the digital signals are sent to a receiving center through the radio frequency antenna U6 connected with the wireless transceiver circuit U5 in a wireless mode. The utility model solves the problem for the real-time automatic monitoring of the on-site temperature under wide range and poor industrial environment.
Description
Technical field
The utility model relates to a kind of temperature sensor, especially a kind of can be used for rugged surroundings or need remote in real time or regularly measure the radio temperature sensor of temperature, specifically a kind of active wireless temperature sensor.
Background technology
Temperature survey is very general in the application of every field such as daily life, industrial and agricultural production, and common thermometry has: (1) thermometer-need human eye to distinguish its scale mark comes sense temperature; (2) various contacts, non-contact type temperature measurement instrument, the common feature of these instrument also all are manually to read the temperature data that records.But, use a computer and carry out automatically on a large scale that temperature data acquisition and processing are inevitable development trend along with improving constantly of application requirements.
Occurred multiple digital temperature sensor in the market, these temperature sensors can directly be connected with microprocessor, again by fieldbus mode and compunication, finish gathering automatically the scene temperature data on a large scale.But because a lot of industry spot environmental facies are when complicated, need the check point quantity of monitor temperature very huge again, if adopt existing wired temperature sensing mode, not only invest huge, and can the operation of existing system be exerted an influence, therefore up to the present, these industry spot still adopt manual type collecting temperature data, and are very inconvenient.
Summary of the invention
The purpose of this utility model provide a kind of utilize that radio frequency recognition principle and digital temperature sensing technology combine, can carry out temperature survey, remote non-contact transmission temperature data automatically, the active wireless temperature sensor of check point positional information can be provided simultaneously, with solve on a large scale, a scene temperature real-time automatic monitoring difficult problem under the abominable industrial environment.
The technical solution of the utility model is:
A kind of active wireless temperature sensor, it is characterized in that it is mainly by temperature sensor U1, modulate circuit U2, A/D converter U3, in the internal memory with the microprocessor U4 of the numbering that can not change or code (the ID sign indicating number that is equivalent to radio electronic label), wireless transceiver circuit U5, radio-frequency antenna U6, power supply U7 forms, power supply U7 is the power supply of corresponding work unit, the output signal of temperature sensor U1 connects the input of modulate circuit U2, and after compensating adjustment, modulate circuit U2 is delivered to the input end of A/D converter U3, convert digital signal to through A/D converter U3 and be delivered to microprocessor U4, by microprocessor U4 with the signal of A/D converter U3 output in its internal memory with the numbering that can not change or code pack and be delivered to wireless transceiver circuit U5 and be sent to receiving center with wireless mode by the radio-frequency antenna U6 that links to each other with wireless transceiver circuit U5.
Power supply U7 can be dry cell.
Temperature sensor U1 can be digital temperature sensor, platinum resistance temperature sensor, thermocouple temperature sensor or infrared non-contact temperature sensor, and its temperature-measuring range is-40 ℃～+ 1000 ℃.
Microprocessor U4 is in the sleep duty usually, can wake up by self-timing, and wakeup time is set in advance by internal processes at interval.
In the internal memory of microprocessor U4, be written into the serial number that can not change before dispatching from the factory, this numbering has been represented the identity of this sensor.
Wireless transceiver circuit U5 described in the utility model and radio-frequency antenna U6 can select to work in ISM frequency of operation such as 433MHz, 915MHz or 2450MHz.
The beneficial effects of the utility model:
1, compare with general temperature sensor, it adopts wireless mode to transmit the temperature of tested measuring point, so can be used in the occasion of site environment complexity.
2, adopt active mode to carry out temperature survey and data transmission, help saving the sensor battery energy, prolong its serviceable life.
3, sensor adopts active mode work, and the long transmission distance of data transmission helps making up temperature monitoring system in a big way.
Description of drawings
Fig. 1 is the utility model structured flowchart.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 3 is a program flow diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
A kind of active wireless temperature sensor, it is mainly by temperature sensor U1, modulate circuit U2, A/D converter U3, in the internal memory with the microprocessor U4 of the numbering that can not change or code (the ID sign indicating number that is equivalent to radio electronic label), wireless transceiver circuit U5, radio-frequency antenna U6, dry cell U7 forms, dry cell U7 is the power supply of corresponding work unit, the output signal of temperature sensor U1 connects the input of modulate circuit U2, and after compensating adjustment, modulate circuit U2 is delivered to the input end of A/D converter U3, convert digital signal to through A/D converter U3 and be delivered to microprocessor U4, by microprocessor U4 with the signal of A/D converter U3 output in its internal memory with the numbering that can not change or code pack and be delivered to wireless transceiver circuit U5 and be sent to receiving center with wireless mode by the radio-frequency antenna U6 that links to each other with wireless transceiver circuit U5.
Physical circuit figure as shown in Figure 2, wherein temperature sensor U1, modulate circuit U2, A/D converter U3 three parts can adopt the ADT7301 integrated package, it is the intelligent temperature sensor of the up-to-date release of U.S. Analog Devices company, and its temperature-measuring range is-40 ℃～150 ℃.Microprocessor U4, wireless transceiver circuit U5 can adopt the nRF9E5 integrated package, it is the wireless data transceiving intelligent RF chip that Northern Europe Nordic company releases, and be built-in with 51 single-chip microcomputers, peripheral circuit connects very simple, can be connected with radio-frequency antenna easily, this chip adopts 1.9V～3.6V single power supply, emissive power is 10dBm, receiving sensitivity-100dBm, message transmission rate is up to 0.1Mbps, storer is 4K, electric current 2.5 μ A when low-power consumption, single-chip microcomputer full speed running power consumption 1mA@4M.EEPROM adopts 25320, and it is the external program memory of the SPI Serial Peripheral Interface (SPI) of nRF9E5 support.
Accompanying drawing 3 is the main work flow of built-in 51 single-chip microcomputers of nRF9E5, and wherein the MCU timing wake-up time interval is decided to be 10 seconds, and the wireless transmission data time is decided to be 1 minute at interval.Critical value is the alarm threshold of monitoring point temperature, and when collecting temperature surpassed this thresholding, sensor was launched the collecting temperature data immediately.If temperature does not surpass this thresholding, then wait until to send data time to just sending.
Claims (3)
1, a kind of active wireless temperature sensor, it is characterized in that it is mainly by temperature sensor U1, modulate circuit U2, A/D converter U3, in the internal memory with the microprocessor U4 of the numbering that can not change or code, wireless transceiver circuit U5, radio-frequency antenna U6, power supply U7 forms, power supply U7 is the power supply of corresponding work unit, the output signal of temperature sensor U1 connects the input of modulate circuit U2, and after compensating adjustment, modulate circuit U2 is delivered to the input end of A/D converter U3, convert digital signal to through A/D converter U3 and be delivered to microprocessor U4, by microprocessor U4 with the digital signal of A/D converter U3 output in its internal memory with the numbering that can not change or code pack and be delivered to wireless transceiver circuit U5 and be sent to receiving center with wireless mode by the radio-frequency antenna U6 that links to each other with wireless transceiver circuit U5.
2, active wireless temperature sensor according to claim 1 is characterized in that described power supply U7 is a dry cell.
3, active wireless temperature sensor according to claim 1, it is characterized in that described temperature sensor U1 is digital temperature sensor, platinum resistance temperature sensor, thermocouple temperature sensor or infrared non-contact temperature sensor, its temperature-measuring range is-40 ℃～+ 1000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520072777.5U CN2781340Y (en) | 2005-06-17 | 2005-06-17 | Active radio temp sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520072777.5U CN2781340Y (en) | 2005-06-17 | 2005-06-17 | Active radio temp sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781340Y true CN2781340Y (en) | 2006-05-17 |
Family
ID=36762542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520072777.5U Expired - Lifetime CN2781340Y (en) | 2005-06-17 | 2005-06-17 | Active radio temp sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781340Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074724A (en) * | 2016-05-09 | 2018-12-21 | 株式会社木幡计器制作所 | The bearing calibration of metrical instrument IC tag unit, metrical instrument IC tag system, the metrical instrument with IC tag unit and the metrical instrument with IC tag unit |
-
2005
- 2005-06-17 CN CN200520072777.5U patent/CN2781340Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074724A (en) * | 2016-05-09 | 2018-12-21 | 株式会社木幡计器制作所 | The bearing calibration of metrical instrument IC tag unit, metrical instrument IC tag system, the metrical instrument with IC tag unit and the metrical instrument with IC tag unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AUSTRALIAN SCIENCE AND TECHNOLOGY CO., LTD. JINAN Free format text: FORMER OWNER: ZHANG HUA Effective date: 20110118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211101 ROOM 402, BUILDING 202, INSIDE OF INSTITUTE OF METEOROLOGY, NO.60, SHUANGLONG STREET, NANJING CITY, JIANGSU PROVINCE TO: 250100 ROOM 410, NO.786 (MAINLAND ELECTRICAL BUILDING), XINLUO AVENUE, LIXIA DISTRICT (HIGH-TECH ZONE), JI NAN CITY, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110118 Address after: 250100 Shandong city in Ji'nan Province, Lixia District (the New District) Xinluo Avenue No. 786 (mainland electromechanical office building) room 410 Patentee after: JINAN WINALL TECHNOLOGY CO., LTD. Address before: 211101, Room 202, 60 meteorological college, 402 Shuanglong street, Jiangsu, Nanjing Patentee before: Zhang Hua |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150617 Granted publication date: 20060517 |