CN102564625A - Wireless temperature sensor - Google Patents

Wireless temperature sensor Download PDF

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Publication number
CN102564625A
CN102564625A CN2010106117788A CN201010611778A CN102564625A CN 102564625 A CN102564625 A CN 102564625A CN 2010106117788 A CN2010106117788 A CN 2010106117788A CN 201010611778 A CN201010611778 A CN 201010611778A CN 102564625 A CN102564625 A CN 102564625A
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CN
China
Prior art keywords
temperature sensor
temperature
circuit
address code
data
Prior art date
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.)
Pending
Application number
CN2010106117788A
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Chinese (zh)
Inventor
周小凡
陈铭
陈炜
黎德光
秦斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI ELECTROPHYSICS COLLECTIVE ASSET MANAGEMENT CO Ltd
Shanghai Municipal Electric Power Co Materials Supply Co
State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
Original Assignee
LOGISTICS SERVICE CENTER SMEPC
SHANGHAI DONGRUN POWER SUPPLY ENTERPRISE CO Ltd
Shanghai Municipal Electric Power Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOGISTICS SERVICE CENTER SMEPC, SHANGHAI DONGRUN POWER SUPPLY ENTERPRISE CO Ltd, Shanghai Municipal Electric Power Co filed Critical LOGISTICS SERVICE CENTER SMEPC
Priority to CN2010106117788A priority Critical patent/CN102564625A/en
Publication of CN102564625A publication Critical patent/CN102564625A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a wireless temperature sensor in a shape of a bolt. The wireless temperature sensor comprises a screw portion with a thread and a nut portion which are fixed together. An electricity taking and processing module is arranged inside the nut portion, and a temperature sensing module is arranged in the screw portion. The wireless temperature sensor is easy to install and can not have any influence on power equipment. In addition, the wireless temperature sensor only needs to be installed on a tested object at one time, and is used in a long term without replacement, so that the characteristic of passiveness is achieved.

Description

A kind of radio temperature sensor
Technical field
The present invention relates to sensor field, relate in particular to a kind of radio temperature sensor.
Background technology
Monitoring to the power equipment temperature is a very important difficult problem of studying both at home and abroad at present.Measure the temperature of these contacts and data in real time is spread out of not a duck soup.At present, measuring method commonly used mainly contains following two kinds:
(1) the subsides temperature labeling acts of contact, for example cured with material such as temperature-sensitive that temperature variation changes color at surfaces coated one deck of busbar joint and switch contact, come roughly to confirm temperature range through observing its change color.This method accuracy is low, readable poor, can not carry out quantitatively with in real time measuring, and need personnel's periodical inspection.
(2) contactless infrared measurement of temperature method for example, is utilized the IR survey appearance, and operating personnel regularly hand-held instrument aim at busbar joint and the high-voltage switch gear contact is measured.This equipment price is high, operating difficulties, can't under highlighting bar spare, accurately measure outdoor equipment, and still can't accomplish real-time detection; In addition; Infrared thermoviewer can't see through the cabinet door and measure internal unit, must close the cabinet door during switch cubicle operation, causes infrared mode to measure.
These two kinds of methods all exist some problems:
1) can not realize full-automatic monitoring in real time;
2) temperature survey is inaccurate, and is affected by environment easily;
3) can't draw device temperature continually varying rule.
Existing temperature sensor adopts active design, must use battery, can have hidden peril of explosion like this, and inconvenient for the installation of measurement point, can't carry out the charged for replacement operation.
Summary of the invention
The objective of the invention is to overcome the defective of prior art and radio temperature sensor is provided, it is easy to install, can be to any influence of power equipment generation itself; Only need on measured object, to carry out one-step installation in addition, the long-term use need not to change, and realized passive characteristics.
The technical scheme that realizes above-mentioned purpose is: a kind of radio temperature sensor; Wherein, The profile of described radio temperature sensor is the shape of bolt; It comprises threaded shank with screw thread and the nut portion that is fixed together, and the set inside of described nut portion has a power taking processing module, and the set inside of described threaded shank has a temperature measurement module.
Above-mentioned radio temperature sensor; Wherein, Described temperature measurement module comprises continuous temperature measurement circuit and address code/random code generator; Described power taking processing module comprises high voltage induction power-supply circuit, storage or saving power circuit, trigger circuit, small micro and the high frequency transmission circuit that links to each other successively, and described storage or saving power circuit also outputs signal to described DC/DC change-over circuit, and described address code/random code generator outputs signal to described small micro; Described high frequency transmission circuit links to each other with described data collector terminal, wherein:
Described temperature measurement circuit detects the temperature on the point for measuring temperature, and detected temperature data is sent to described address code/random code generator;
Described address code/random code generator is discerned the address code of this radio temperature sensor for detected temperature data, and this address code is sent to described small micro together with temperature data;
Described high voltage induction power-supply circuit is gathered the electric current of the hi-line at point for measuring temperature place to ground loop, and the electric current that collects is exported to described storage power circuit;
Said small micro is handled the temperature data that collects, and after the processing information is emitted to peripheral equipment through described high frequency transmission circuit.
Above-mentioned radio temperature sensor, wherein, described small micro comprises that to the processing of data data are carried out A/D to be changed, the position at address code information that memory address sign indicating number/random code generator sends and record current wireless temperature sensor place.
Above-mentioned radio temperature sensor, wherein, each radio temperature sensor has unique address code.
The invention has the beneficial effects as follows: radio temperature sensor of the present invention adopts the form of bolt, is convenient to install, and directly is connected with testee through bolt, and temperature-sensitive is accurate; Through wireless mode data are exported, solved Insulation Problems; Directly, realize complete passive design, ensure safety through the high voltage induction power taking; In high voltage, high-temperature, high-intensity magnetic field and extremely strong electromagnetic interference environment, can realize thermometric to point for measuring temperature, solved the adaptability of electronic measuring device under above-mentioned severe environmental conditions.The present invention has following advantage:
1) adopts advanced digitizing and Radio Transmission Technology, unique insulating property, economy easy to use.Need not sensor internal and handle through special process, temperature parameter changes through wireless transmission method to transceiver base station.The temperature signal that receives accurately and reliably.Be that installation, operation, maintenance all can high safeties, reliable.Can not produce any interference and influence to primary equipment.
2) guarantee under the service range situation that adopt the super low-power consumption design, radio temperature sensor uses passive power supply, has saved battery, has improved the reliability of temperature measuring head.
3) radio temperature sensor not only has good insulation performance property and also has extremely strong anti-electromagnetic interference capability, security of operation, reliable, accuracy is high.
4) saved the line of redundant and complicated, system installs succinct convenient.
5) radio temperature sensor has adopted the structural design of common hex bolts; Except profile and common hex bolts have on the thickness different, other is about the same, it be the same with bolt also be to be spun on the copper bar line; Except can guarantee with the complete close contact of copper bar; Also have an advantage to be exactly, utilize special insulation hook stick, can the charged for replacement temperature measuring head.
6) each radio temperature sensor has unique ID number; In the time of monitored some temperature of temperature measurement module; Also transmit the numbering of himself (ID number) to come out; When these data finally were transferred to small micro, small micro showed the temperature of each monitoring point automatically according to numbering and the infield corresponding relation in database, preserved in advance.These characteristics are fit to the application requirements that transformer station has a large amount of monitoring points very much, have improved the automaticity of system, need the problem of a large amount of hand-kepts when having alleviated artificial thermometric.
7) 24 hours every days continuous on-line monitoring, radio temperature sensor is every gathers the temperature data of a monitoring point second automatically at a distance from about 1-3, when temperature changes, outwards sends immediately, otherwise about 5-10 minute transmission one secondary data.System can collect the continuous temperature change curve of equipment like this, can reduce the power consumption of collector again, and can be reached more than 10 years the serviceable life of radio temperature sensor at most.
Description of drawings
Fig. 1 is the structural representation of radio temperature sensor of the present invention;
Fig. 2 is the inside schematic diagram of radio temperature sensor of the present invention.
Embodiment
To combine accompanying drawing that the present invention is described further below.
See also Fig. 1 and Fig. 2; A kind of radio temperature sensor of the present invention has been shown among the figure; Need to install on the node of monitor temperature a radio temperature sensor 1 at each, whenever measure the temperature of position automatically, and the temperature data that records is sent output with wireless signal at a distance from the time of setting; Each radio temperature sensor 1 has ID number (numbering) that unique 16bits numbering constitutes, the infield that needs to distribute, write down each sensor during actual the use.
The profile of radio temperature sensor 1 is the shape of bolt, and it comprises threaded shank with screw thread 100 and the nut portion 200 that is fixed together, and the set inside of nut portion 200 has a power taking processing module 12, and the set inside of threaded shank 100 has a temperature measurement module 11.
Temperature measurement module 11 comprises continuous temperature measurement circuit 111 and address code/random code generator 112; Power taking processing module 12 comprises high voltage induction power-supply circuit 121, storage or saving power circuit 122, trigger circuit 123, small micro 124 and the high frequency transmission circuit 125 that links to each other successively; Storage or saving power circuit 122 also outputs signal to DC/DC (DC-DC) change-over circuit 126; Address code/random code generator 112 outputs signal to small micro 124, high frequency transmission circuit 125, wherein:
Temperature measurement circuit 11, the model of employing are MF58-103-3950A, and it detects the temperature on the point for measuring temperature, and detected temperature data is sent to address code/random code generator 112;
Address code/random code generator 112; The model that adopts is 16F676; Address code/random code generator 112 is discerned the address code of this radio temperature sensor 1 for detected temperature data, and this address code is sent to small micro 124 together with temperature data;
High voltage induction power-supply circuit 121 is gathered the electric current of the hi-line at point for measuring temperature place to ground loop; And with the electric current that collects export to the storage power circuit 122; This circuit utilizes high-tension electricity to have the characteristics of electric field, comes power taking through potential difference (PD), has realized passive characteristics;
Storage or saving power circuit 122 can adopt an electric capacity to come accumulation of energy, when electric energy is elevated to the required electric energy of operating circuit, then starts working, and then comes accumulation of energy inferior through high voltage induction power-supply circuit 121 collecting energies after the energy of storage or saving is given out light.
Trigger circuit 123 trigger small micro 123 work.
124 pairs of temperature datas that collect of small micro are handled; After the processing information is emitted to peripheral equipment through high frequency transmission circuit 125; The processing of 124 pairs of data of small micro comprises carries out A/D (analog/digital) conversion with data, the position at address code information that memory address sign indicating number/random code generator 112 sends and record current wireless temperature sensor 1 place.
High frequency transmission circuit 125 adopts the high frequency transmission circuit of 315M.
In sum, the present invention has realized the characteristics of passive detection temperature, does not need battery, thereby has improved the security of using.With low cost, be fit to be widely used.
The present invention can use in the generating plant, the equipment that has several thousand points to detect such as the boiler of generating plant, pipeline, genset, converting equipment etc.Can also use in following field, for example in transportation by railroad, the axle temperature in every joint compartment detects; Steel plant and mechanical industry; The temperature detection of booth and freezer in the agricultural production; The temperature detection of various device machine room and other need the application of thermometric in a large number.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technician in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.

Claims (4)

1. radio temperature sensor; It is characterized in that; The profile of described radio temperature sensor is the shape of bolt; It comprises threaded shank with screw thread and the nut portion that is fixed together, and the set inside of described nut portion has a power taking processing module, and the set inside of described threaded shank has a temperature measurement module.
2. radio temperature sensor according to claim 1; It is characterized in that; Described temperature measurement module comprises continuous temperature measurement circuit and address code/random code generator; Described power taking processing module comprises high voltage induction power-supply circuit, storage or saving power circuit, trigger circuit, small micro and the high frequency transmission circuit that links to each other successively, and described storage or saving power circuit also outputs signal to described DC/DC change-over circuit, and described address code/random code generator outputs signal to described small micro; Described high frequency transmission circuit links to each other with described data collector terminal, wherein:
Described temperature measurement circuit detects the temperature on the point for measuring temperature, and detected temperature data is sent to described address code/random code generator;
Described address code/random code generator is discerned the address code of this radio temperature sensor for detected temperature data, and this address code is sent to described small micro together with temperature data;
Described high voltage induction power-supply circuit is gathered the electric current of the hi-line at point for measuring temperature place to ground loop, and the electric current that collects is exported to described storage power circuit;
Said small micro is handled the temperature data that collects, and after the processing information is emitted to peripheral equipment through described high frequency transmission circuit.
3. radio temperature sensor according to claim 2; It is characterized in that; Described small micro comprises that to the processing of data data are carried out A/D to be changed, the position at address code information that memory address sign indicating number/random code generator sends and record current wireless temperature sensor place.
4. radio temperature sensor according to claim 2 is characterized in that each radio temperature sensor has unique address code.
CN2010106117788A 2010-12-29 2010-12-29 Wireless temperature sensor Pending CN102564625A (en)

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Application Number Priority Date Filing Date Title
CN2010106117788A CN102564625A (en) 2010-12-29 2010-12-29 Wireless temperature sensor

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Application Number Priority Date Filing Date Title
CN2010106117788A CN102564625A (en) 2010-12-29 2010-12-29 Wireless temperature sensor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103292919A (en) * 2013-05-24 2013-09-11 河南华润电力古城有限公司 Temperature measuring device with thermal resistor
CN103913245A (en) * 2013-01-09 2014-07-09 张恒驰 Chargeable wireless temperature measuring system capable of achieving self electricity taking
CN105302042A (en) * 2015-11-13 2016-02-03 南京物联传感技术有限公司 Intelligent screw capable of replacing common screw
CN109212302A (en) * 2018-09-03 2019-01-15 北京许继电气有限公司 Sensor method of supplying power to and system in super high voltage direct current electricity transmission system
WO2019024185A1 (en) * 2017-07-31 2019-02-07 中车南京浦镇车辆有限公司 Method for detecting bearing temperature of railway passenger train and digital/analog integrated temperature sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164343A (en) * 1993-10-15 1995-06-27 Takenaka Komuten Co Ltd Torque wrench
EP0894983A2 (en) * 1997-07-30 1999-02-03 Smc Corporation Sensor mounting device in fluid pressure clylinder
CN2777661Y (en) * 2005-07-27 2006-05-03 张华� On line temp wireless monitoring system for distributing and transforming apparatus
CN101319938A (en) * 2008-07-08 2008-12-10 周骁威 On-line temperature measurement method and device for cable joint of high-voltage plant
CN101782437A (en) * 2009-01-16 2010-07-21 常州帕斯菲克自动化技术有限公司 High-voltage switch contact temperature online monitoring device and method thereof
CN201628584U (en) * 2010-02-26 2010-11-10 江苏镇安电力设备有限公司 Temperature-measuring screw bolt

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164343A (en) * 1993-10-15 1995-06-27 Takenaka Komuten Co Ltd Torque wrench
EP0894983A2 (en) * 1997-07-30 1999-02-03 Smc Corporation Sensor mounting device in fluid pressure clylinder
CN2777661Y (en) * 2005-07-27 2006-05-03 张华� On line temp wireless monitoring system for distributing and transforming apparatus
CN101319938A (en) * 2008-07-08 2008-12-10 周骁威 On-line temperature measurement method and device for cable joint of high-voltage plant
CN101782437A (en) * 2009-01-16 2010-07-21 常州帕斯菲克自动化技术有限公司 High-voltage switch contact temperature online monitoring device and method thereof
CN201628584U (en) * 2010-02-26 2010-11-10 江苏镇安电力设备有限公司 Temperature-measuring screw bolt

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913245A (en) * 2013-01-09 2014-07-09 张恒驰 Chargeable wireless temperature measuring system capable of achieving self electricity taking
CN103292919A (en) * 2013-05-24 2013-09-11 河南华润电力古城有限公司 Temperature measuring device with thermal resistor
CN105302042A (en) * 2015-11-13 2016-02-03 南京物联传感技术有限公司 Intelligent screw capable of replacing common screw
WO2019024185A1 (en) * 2017-07-31 2019-02-07 中车南京浦镇车辆有限公司 Method for detecting bearing temperature of railway passenger train and digital/analog integrated temperature sensor
CN109212302A (en) * 2018-09-03 2019-01-15 北京许继电气有限公司 Sensor method of supplying power to and system in super high voltage direct current electricity transmission system

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Owner name: LOGISTICS SERVICE CENTRE, SHANGHAI ELECTRIC POWER

Free format text: FORMER OWNER: LOGISTICS SERVICE CENTRE, SHANGHAI ELECTRIC POWER COMPANY DONGRUN POWER SUPPLY INDUSTRIAL CO., LTD., SHANGHAI

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Applicant after: Shanghai Electric Power Corporation

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Applicant after: Shanghai Dongrun Power Supply Enterprise Co., Ltd.

Applicant after: State Grid Corporation of China

Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122

Applicant before: Shanghai Electric Power Corporation

Applicant before: Logistics Service Center, SMEPC

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Owner name: MATERIAL SUPPLY COMPANY OF SHANGHAI MUNICIPAL ELEC

Free format text: FORMER OWNER: LOGISTICS SERVICE CENTRE, SHANGHAI ELECTRIC POWER COMPANY DONGRUN POWER SUPPLY INDUSTRIAL CO., LTD., SHANGHAI STATE ELECTRIC NET CROP.

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Applicant after: Shanghai Municipal Electric Power Company materials supply company

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Applicant after: State Grid Corporation of China

Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122

Applicant before: Shanghai Electric Power Corporation

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Application publication date: 20120711