CN202350950U - Self-powered wireless temperature measurement device for power transmission and transformation system - Google Patents

Self-powered wireless temperature measurement device for power transmission and transformation system Download PDF

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Publication number
CN202350950U
CN202350950U CN2011204644438U CN201120464443U CN202350950U CN 202350950 U CN202350950 U CN 202350950U CN 2011204644438 U CN2011204644438 U CN 2011204644438U CN 201120464443 U CN201120464443 U CN 201120464443U CN 202350950 U CN202350950 U CN 202350950U
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CN
China
Prior art keywords
self
temperature sensor
power transmission
transformation system
power
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CN2011204644438U
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Chinese (zh)
Inventor
张小全
李湃
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苏州迪芬德物联网科技有限公司
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Publication of CN202350950U publication Critical patent/CN202350950U/en

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Abstract

The utility model discloses a self-powered wireless temperature measurement device for a power transmission and transformation system. The device comprises an induction coil, a temperature sensor, an analogue/digital (A/D) conversion module, a singlechip and a wireless transmission module, wherein the induction coil generates electromagnetic induction with a bus-bar; induced electricity generated by the induction coil supplies power to the temperature sensor, the A/D conversion module, the singlechip and the wireless transmission module; a temperature signal measured by the temperature sensor is transmitted to the singlechip after passing through the A/D conversion module; the singlechip performs two-way communication with the outside through the wireless transmission module; and the wireless transmission module is connected with an antenna. The aims of low cost and high accuracy are fulfilled.

Description

The self-power wireless temperature measuring equipment that is used for power transmission and transformation system

Technical field

The utility model relates to the temperature survey field, particularly, relates to a kind of self-power wireless temperature measuring equipment that is used for power transmission and transformation system.

Background technology

At present, in power transmission and transformation system, temperature rise can to occur when oxidation occurring too high in that load current is excessive or surperficial for power equipments such as current carrying bus, busbar, do not add processing for a long time and can make adjacent live part performance degradation, causes puncturing, fault outage.Superintendent office provides data analysis according to production safety, in the major accident that national power transmission and transformation took place, is because overheated causing causes tremendous economic loss, the safety that is also threatening lives and properties simultaneously for production and operation more than 90 percent.Through the ruuning situation of monitoring bus contact, high-voltage cable joint, high-voltage switch gear contact temperature, can prevent effectively that high pressure is defeated, the generation of power transformation fault, for realizing safety in production effective guarantee is provided.

Many busbars are in noble potential (6KV, 10KV, 35KV, 110KV, 220KV); The method of temperature monitoring commonly used; A kind of is to be coated with the temperature variant luminescent material of one deck color at the high-tension electricity surface in contact, comes roughly to confirm temperature range, low, the poor reliability of this method accuracy through observing its change color; Can not carry out quantitative measurment, in totally enclosed environment, also can not observe; A kind of in addition method is to utilize the thermal infrared imager of radiation characteristic; Accuracy is higher, but owing to need optical device, it is not too convenient to use in the specific occasion; Bring challenges for installation, debugging, maintenance and power devices even use reluctantly; Be difficult to implement, and price is higher, has applied certain difficulty.The more important thing is that above dual mode all needs manual work to patrol, can not obtain temperature data in real time, resulting data lag behind forever, do not have temperature Realtime Alerts function.

Existing wireless temperature measurement system; Be that temperature sensor is placed the thermometric terminal inner mostly; Each measurement point is installed a thermometric terminal, and such shortcoming is: the high temperature of point for measuring temperature is all influential to the stability and the serviceable life of the electronic devices and components of thermometric terminal inner data acquisition unit, therefore; For this series products; The thermometric terminal need be installed in apart from heat generating spot has place certain distance, that temperature is relatively low, and also there are certain distance in temperature sensor and point for measuring temperature thus, and there is error in temperature survey.During use, in order to reduce temperature measurement error, need the temperature sensor high temperature side warm spot of trying one's best, and the data acquisition unit at thermometric terminal is as far as possible away from heat generating spot; Simultaneously, install and use cost, should suitably reduce the quantity at thermometric terminal, or it is suitable to provide multiple sensor to be measured as with each thermometric terminal in order to reduce.In addition; The most of internal battery that adopts of this series products is supplied power; All there are influence more or less in the life-span of internal battery, battery size to product to the restriction of apparent size, simultaneously in the environment that personnel are difficult for arriving; Safeguard or change battery to become the thing that to accomplish, directly influenced the normal use of product.Through above-mentioned analysis, existing wireless temperature measurement system has following shortcoming: the space is little, the distribution of measurement point side line property, and measurement point is intensive relatively, and coupling part, measured point temperature is than high, and the measured point ambient temperature is higher.

The utility model content

The purpose of the utility model is, to the problems referred to above, proposes a kind of self-power wireless temperature measuring equipment that is used for power transmission and transformation system, to realize low, the advantage of high precision of cost.

For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:

A kind of self-power wireless temperature measuring equipment that is used for power transmission and transformation system; Comprise inductive coil, temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module; Said inductive coil and bus row electromagnetic induction; The induced electricity that inductive coil produces is that temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module provide power supply; The temperature signal that said temperature sensor records passes to single-chip microcomputer behind the A/D modular converter, single-chip microcomputer carries out two-way communication through wireless transmitter module and outside, is connected with antenna on the said wireless transmitter module.

Further, adopt spi bus to be connected between said single-chip microcomputer and the wireless transmitter module.

Further, said inductive coil is an autotransformer.

Further, the iron core of said autotransformer adopts the not iron core of opening.

Further; Also comprise shell and inner casing, said shell and inner casing are formed the annulus of a hollow, between shell and inner casing, are provided with inductive coil, A/D modular converter, single-chip microcomputer and wireless transmitter module; Said temperature sensor passes the aperture on the inner casing, is connected electrically on the inductive coil.

Further, said temperature sensor can be provided with a plurality of.

Further, said temperature sensor adopts ceramic package.

The technical scheme of the utility model is separated temperature sensor and data acquisition circuit; And to adopt inductive coil be that temperature sensor and data acquisition circuit provide power supply, and because of temperature sensor separates with data acquisition circuit, it is enough near to guarantee that temperature sensor leaves busbar; Do not influence simultaneously the electronic component of data acquisition circuit yet; Thereby improved the accuracy of temperature measuring equipment, and adopted the design of habitual electronic circuit, reduced cost.Adopt the mode of inductive coil power supply, avoided the restriction of powered battery, temperature measuring equipment can be applied in the transmission of electricity case of various sealings more flexibly the temperature measuring equipment shape.

Further feature of the utility model and advantage will be set forth in instructions subsequently, and, partly from instructions, become obvious, perhaps understand through implementing the utility model.The purpose of the utility model can realize through the structure that in the instructions of being write, claims and accompanying drawing, is particularly pointed out and obtain with other advantages.

Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.

Description of drawings

Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of instructions, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:

Fig. 1 is the described fundamental diagram that is used for the self-power wireless temperature measuring equipment of power transmission and transformation system of the utility model embodiment;

Fig. 2 is the described structural representation that is used for the self-power wireless temperature measuring equipment of power transmission and transformation system of the utility model embodiment;

Fig. 3 is the user mode figure of the self-power wireless temperature measuring equipment that is used for power transmission and transformation system shown in Figure 2;

Fig. 4 is the self-power wireless temperature measuring equipment side view that is used for power transmission and transformation system shown in Figure 3.

In conjunction with accompanying drawing, Reference numeral is following among the utility model embodiment:

The 1-shell; The 2-inductive coil; The 3-inner casing; The 4-temperature sensor; The 5-data acquisition circuit; The 6-busbar.

Embodiment

Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.

As shown in Figure 1; A kind of self-power wireless temperature measuring equipment that is used for power transmission and transformation system; Comprise inductive coil, temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module; Inductive coil and bus row electromagnetic induction, the induced electricity that inductive coil produces is that temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module provide power supply, the temperature signal that temperature sensor records passes to single-chip microcomputer behind the A/D modular converter; Single-chip microcomputer carries out two-way communication through wireless transmitter module and outside, is connected with antenna on the wireless transmitter module.Adopt spi bus to be connected between single-chip microcomputer and the wireless transmitter module.Inductive coil is an autotransformer.The iron core of autotransformer adopts the not iron core of opening.

As shown in Figure 2; Wireless temperature measuring device also comprises shell 1 and inner casing 3; The annulus of shell 1 and a hollow of inner casing 3 compositions; Between shell 1 and inner casing 3, be provided with inductive coil 2, A/D modular converter, single-chip microcomputer and wireless transmitter module, temperature sensor 4 passes the aperture on the inner casing 3, is connected electrically on the inductive coil 2.On a wireless temperature measuring device, a plurality of temperature sensors can be set, temperature sensor 4 adopts ceramic package.A/D modular converter, single-chip microcomputer and wireless transmitter module are formed data acquisition circuit 5.

The concrete installation as follows:

Wireless temperature measuring device is connected with data collector the multi way temperature temperature sensor through data line, both all adopt corrosion-resistant, and anti-high and low temperature material is processed, the demand that can conform.Equipment is installed on the high pressure busbar 6, and busbar 6 is linear trend, and arrange with busbar at the thermometric terminal.During equipment work, owing to there is electric current to flow through busbar 6, is installed in busbar 6 single-circuit transformer on every side and utilizes electromagnetic induction principle, the magnetic field that generates busbar 6 is converted into the electric energy to the power supply of thermometric terminal.The temperature analog signal that each temperature sensor collects is sent in the data processing equipment, via A/D (digital-to-analog) conversion chip digital signal is sent into single-chip microcomputer and handles, and be uploaded in the host computer through the wireless transmit chip.Wireless temperature measuring device can be formed short-range wireless networking and be distributed on three parallel busbars, can be sent to the other end to data from the end in tunnel, in consolidated network, can have thousands of such wireless temperature measurement terminals simultaneously.Can there be No. 10 temperature sensors in a wireless temperature measuring device in the installation, is arranged in the two sides at terminal respectively, 5 sensors of every side, symmetria bilateralis.Single-circuit transformer is adopted at the thermometric terminal, and the electromagnetic field that utilizes busbar 6 to be produced is converted into the required electric energy in thermometric terminal, and equipment size can carry out particular design according to the width of busbar.Each road temperature sensor length is different, and five sensors of every side extend successively.

In sum, the utlity model has following beneficial effect: one, iron core opening not, to reduce the influence of harmonic wave to the wireless temperature measurement terminal;

Two, temperature sensor adopts ceramic package, and is withstand voltage, high temperature resistant, heat conduction is good, can connect multisensor, and simplified apparatus improves service efficiency.

What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (7)

1. self-power wireless temperature measuring equipment that is used for power transmission and transformation system; It is characterized in that; Comprise inductive coil, temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module; Said inductive coil and bus row electromagnetic induction, the induced electricity that inductive coil produces is that temperature sensor, A/D modular converter, single-chip microcomputer and wireless transmitter module provide power supply, the temperature signal that said temperature sensor records passes to single-chip microcomputer behind the A/D modular converter; Single-chip microcomputer carries out two-way communication through wireless transmitter module and outside, is connected with antenna on the said wireless transmitter module.
2. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 1 is characterized in that, adopts spi bus to be connected between said single-chip microcomputer and the wireless transmitter module.
3. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 1 and 2 is characterized in that said inductive coil is an autotransformer.
4. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 3 is characterized in that the iron core of said autotransformer adopts the not iron core of opening.
5. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 1 and 2; It is characterized in that; Also comprise shell (1) and inner casing (3), said shell (1) and inner casing (3) are formed the annulus of a hollow, between shell (1) and inner casing (3), are provided with inductive coil (2), A/D modular converter, single-chip microcomputer and wireless transmitter module; Said temperature sensor (4) passes the aperture on the inner casing (3), is connected electrically on the inductive coil (2).
6. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 1 and 2 is characterized in that said temperature sensor (4) can be provided with a plurality of.
7. the self-power wireless temperature measuring equipment that is used for power transmission and transformation system according to claim 1 and 2 is characterized in that, said temperature sensor (4) adopts ceramic package.
CN2011204644438U 2011-11-21 2011-11-21 Self-powered wireless temperature measurement device for power transmission and transformation system CN202350950U (en)

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CN2011204644438U CN202350950U (en) 2011-11-21 2011-11-21 Self-powered wireless temperature measurement device for power transmission and transformation system

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102759415A (en) * 2012-07-27 2012-10-31 苏州迪芬德物联网科技有限公司 High-temperature-resistant wireless temperature measuring device
CN102855729A (en) * 2012-08-25 2013-01-02 于宝成 Residual current type electric fire monitoring system capable of self-supplying power
CN103076105A (en) * 2012-12-27 2013-05-01 北京蓝派克电力科技有限公司 Passive wireless temperature sensor
CN103424209A (en) * 2013-08-01 2013-12-04 苏州迪芬德物联网科技有限公司 Self-powered high-voltage electric power wireless temperature-measurement terminal
CN104596668A (en) * 2015-01-28 2015-05-06 国家电网公司 Surface acoustic wave based distribution transformer temperature on-line monitoring system
CN105181160A (en) * 2015-11-03 2015-12-23 国家电网公司 Wireless temperature measurement system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102759415A (en) * 2012-07-27 2012-10-31 苏州迪芬德物联网科技有限公司 High-temperature-resistant wireless temperature measuring device
CN102855729A (en) * 2012-08-25 2013-01-02 于宝成 Residual current type electric fire monitoring system capable of self-supplying power
CN102855729B (en) * 2012-08-25 2016-01-06 于宝成 Automatic electricity getting residual-current electrical fire supervisory system
CN103076105A (en) * 2012-12-27 2013-05-01 北京蓝派克电力科技有限公司 Passive wireless temperature sensor
CN103076105B (en) * 2012-12-27 2014-11-26 北京蓝派克电力科技有限公司 Passive wireless temperature sensor
CN103424209A (en) * 2013-08-01 2013-12-04 苏州迪芬德物联网科技有限公司 Self-powered high-voltage electric power wireless temperature-measurement terminal
CN104596668A (en) * 2015-01-28 2015-05-06 国家电网公司 Surface acoustic wave based distribution transformer temperature on-line monitoring system
CN104596668B (en) * 2015-01-28 2017-09-15 国家电网公司 A kind of distribution transformer temperature online monitoring system based on surface acoustic wave
CN105181160A (en) * 2015-11-03 2015-12-23 国家电网公司 Wireless temperature measurement system

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