CN206208414U - A kind of temperature measuring equipment - Google Patents
A kind of temperature measuring equipment Download PDFInfo
- Publication number
- CN206208414U CN206208414U CN201621347522.XU CN201621347522U CN206208414U CN 206208414 U CN206208414 U CN 206208414U CN 201621347522 U CN201621347522 U CN 201621347522U CN 206208414 U CN206208414 U CN 206208414U
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- China
- Prior art keywords
- module
- carrier wave
- infrared carrier
- input
- temperature
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Abstract
A kind of temperature measuring equipment, is related to temperature survey.It is provided with power module, temperature detecting module, data transmission module, data processing module, input module and display module, the power module is installed on the high-voltage side bus end of primary cut-out, temperature detecting module is installed on the Mume flower contact of primary cut-out, data transmission module is made up of infrared carrier wave modulation circuit and infrared carrier wave demodulator circuit, the temperature signal data of temperature detecting module connects the input of infrared carrier wave modulation circuit, the infrared carrier wave modulated signal of infrared carrier wave modulation circuit is sent to infrared carrier wave demodulator circuit by the output end of infrared carrier wave modulation circuit, the demodulation temperature information data signal output of infrared carrier wave demodulator circuit connects the input of data processing module, the input of the output termination data processing module of input module, the input of the output termination display module of data processing module；Power module is powered for temperature detecting module, infrared carrier wave modulation circuit and infrared carrier wave demodulator circuit.
Description
Technical field
The utility model is related to temperature survey, is especially for a kind of temperature measuring equipment of high pressure Mume flower contact.
Background technology
With the development of power system, the security of high voltage electric equipment, reliability highlight important.And primary cut-out work
It is again the reliable important step of equipment safety to make in optimum state.
Primary cut-out directly affects the peace of operation of power networks as one of most important equipment in power system, its reliability
Entirely with stably.Periodic plan maintenance, this planned prophylactic repair were carried out to breaker using offline routine inspection mostly in the past
Blindness is big, costly, and influence power generation.As the voltage class and net capacity of power system are improved constantly, propose
Determine according to the actual working state of breaker the state maintenance method whether overhauled.It was verified that state maintenance method
Huge benefit can be brought to power department, achieve develop faster in recent years.However, because use environment is severe and complicated
Work characteristics, breaker mechanical, electrically and temperature characterisitic on-line monitoring have larger difficulty, be the bottleneck of industry development progress
One of.It is primary cut-out intelligence as the electric current contact temperature on-line checking of primary cut-out trouble free service index parameter
The research emphasis changed are, it is necessary to problem addressed is how to measure temperature signal under conditions of hyperbaric environment complexity and pass
Be sent to low-pressure end, at the same prevent from for high pressure guiding to low-pressure end, it is necessary to research key issue have two, one is how to realize high pressure
End measuring circuit is powered, the second is how the mode of testing result connectorless is delivered into low-pressure end.
The content of the invention
The purpose of this utility model is the problems such as precision is disturbed by high pressure when being measured for high-pressure side in the prior art, is carried
For a kind of temperature measuring equipment.
The utility model is provided with power module, temperature detecting module, data transmission module, data processing module, input mould
Block and display module, the power module are installed on the high-voltage side bus end of primary cut-out, the temperature detecting module peace
On Mume flower contact loaded on primary cut-out, the data transmission module is by infrared carrier wave modulation circuit and infrared carrier wave demodulation electricity
Road constitutes, and the temperature signal data of temperature detecting module connects the input of infrared carrier wave modulation circuit, infrared carrier wave modulation circuit
Infrared carrier wave modulated signal infrared carrier wave demodulator circuit, infrared carrier wave solution are sent to by the output end of infrared carrier wave modulation circuit
The demodulation temperature information data signal output of tune circuit connects the input of data processing module, the output termination number of input module
According to the input of processing module, the input of the output termination display module of data processing module；Power module is temperature detection
Module, infrared carrier wave modulation circuit and infrared carrier wave demodulator circuit are powered.
The power module can use transformer for supplying power, and the transformer is by primary coil, secondary coil and iron core structure
Into the magnetic flux that bus current is produced is coupled to secondary coil and produces voltage through primary coil and iron core.
The temperature detecting module can use temperature sensor, and temperature sensor is by K-type thermocouple and AD595 chipsets
Into.
The infrared carrier wave modulation circuit is made up of carrier oscillator and infrared transmitter, and the carrier oscillator is by resistance
R1, resistance R2, electric capacity C, NAND gate A, NAND gate B compositions, the infrared transmitter is by resistance R3, resistance R4, infraluminescence pipe
D, transistor T are constituted.
The infrared carrier wave demodulator circuit is by quadrature detector MC1496, electric capacity C1 and shunt-resonant circuit CL structures
Into.
In order in realizing primary cut-out, the contact point and breaking point of equipment --- the real-time inspection of the temperature rise at Mume flower contact
Survey, the utility model discloses a kind of based on the system for being wirelessly transferred high pressure power taking thermometric, overcome inspection in high-voltage electric power system
Survey difficult, the problem such as certainty of measurement difference, for the fault discovery of equipment, maintenance provide reliable foundation.
Brief description of the drawings
Fig. 1 is the system architecture composition frame chart of the utility model embodiment；
Fig. 2 is the power module schematic diagram of the utility model embodiment；
Fig. 3 is the temperature detecting module schematic diagram of the utility model embodiment；
Fig. 4 is the infrared carrier wave modulation circuit schematic diagram of the utility model embodiment；
Fig. 5 is the infrared carrier wave demodulator circuit schematic diagram of the utility model embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring to Fig. 1~5, the utility model embodiment be provided with power module 1, temperature detecting module 2, data transmission module,
Data processing module 5, input module 6 and display module 7, the high-pressure side that the power module 1 is installed on primary cut-out are female
Line end, the temperature detecting module 2 is installed on the Mume flower contact of primary cut-out, and the data transmission module is by infrared carrier wave
Modulation circuit 3 and infrared carrier wave demodulator circuit 4 are constituted, and the temperature signal data of temperature detecting module 2 connects infrared carrier wave modulation electricity
The input on road 3, the infrared carrier wave modulated signal of infrared carrier wave modulation circuit 3 is sent out by the output end of infrared carrier wave modulation circuit 3
Infrared carrier wave demodulator circuit 4 is given, the demodulation temperature information data signal output of infrared carrier wave demodulator circuit 4 connects data processing
The input of module 5, the input of the output termination data processing module 5 of input module 6, the output end of data processing module 5
Connect the input of display module 7；Power module 1 is the demodulation of temperature detecting module 2, infrared carrier wave modulation circuit 3 and infrared carrier wave
Circuit 4 is powered.
The power module can use transformer for supplying power, and the transformer is by primary coil, secondary coil and iron core structure
Into the magnetic flux that bus current is produced is coupled to secondary coil and produces voltage through primary coil and iron core.
The temperature detecting module can use temperature sensor, and temperature sensor is by K-type thermocouple and AD595 chipsets
Into.
The infrared carrier wave modulation circuit is made up of carrier oscillator and infrared transmitter, and the carrier oscillator is by resistance
R1, resistance R2, electric capacity C, NAND gate A, NAND gate B compositions, the infrared transmitter is by resistance R3, resistance R4, infraluminescence pipe
D, transistor T are constituted.
The infrared carrier wave demodulator circuit is by quadrature detector MC1496, electric capacity C1 and shunt-resonant circuit CL structures
Into.
The utility model solves measuring circuit powerup issue using transformer high voltage side power taking technology, using infrared communication solution
Measurement data of having determined descends into the problem of low-pressure end.There are 6 Mume flower contacts in view of primary cut-out, the utility model is provided
The separate thermometric module in 6 tunnels and corresponding infrared data transmission channels.
When high-pressure side works, the magnetic field energy that power current is produced is converted into power by transformer, is temperature inspection
Survey module and data transmission module provides power supply.Each temperature detecting module can support 2 temperature sensors, temperature detection mould
After the temperature signal that temperature sensor is detected is nursed one's health, digitized by block, data frame is assembled into.Data transmission module is by group
The data frame for installing is modulated to after corresponding infrared carrier wave frequency and sent by infrared transmitting tube, in order to prevent interchannel from sending out
Raw signal interference, each carrier channel is communicated using different carrier frequencies.It is dry also with anti-electromagnetism using infrared communication
Disturb strong ability, space access, realize the advantage such as simple.
When low-pressure end works, under the infrared receiving tube of each carrier channel receives the carrier signal of respective channel
Come, it is demodulated, obtain carrying the data frame of high-pressure side contact temperature information, the data frame signal feeding data processing of each passage
Control unit is processed, subpackage solution frame, obtains the temperature data of each contact.Temperature data can send display module to show, also
Teletransmission protocol module can be sent to be converted into ICP/IP protocol uploaded via internet or uploaded via GPRS wireless communication networks.Input
Module is mainly made up of keyboard, for setting temperature threshold, when temperature exceedes the threshold value of setting, in display module display reminding
Information, to facilitate operating personnel to be monitored.
Fig. 2 is transformer power module, and the energy of power supply comes from high-voltage side bus electric current, because bus current situation is multiple
Miscellaneous, electric current fluctuates in tens peaces between several kilo-amperes, and how that an amplitude of variation is big the main task of CT Power Management Designs is
Current power be converted into a constant voltage source of output.Transformer is made up of primary coil, secondary coil and iron core, female
The magnetic flux that line current is produced is coupled to secondary coil and produces voltage through primary coil and iron core.
Fig. 3 is temperature detecting module, and temperature detecting module is made up of temperature sensor, and temperature sensor uses K-type thermoelectricity
Even, supporting AD595 chips, AD595 is a thermocouple amplifier of AD companies production, possesses cold junction compensation, 10mV/ DEG C of voltage
Output, single-ended+5V power voltage supplies.Data transmission module is divided into two parts, and infrared carrier wave modulation circuit and infrared carrier wave are demodulated
Circuit.
Fig. 4 is infrared carrier wave modulation circuit, and resistance R1, resistance R2, electric capacity C, NAND gate A, NAND gate B collectively constitute carrier wave
Oscillator, data frame to be modulated is input into by an input of NAND gate A.Resistance R3, resistance R4, infraluminescence pipe D, crystalline substance
Body pipe T collectively constitutes infrared transmitter, and carrier oscillator frequency of oscillation f=1/2.2R2C, different data channels may be selected not
Same carrier frequency.
Fig. 5 is infrared carrier wave demodulator circuit, and quadrature detector MC1496 is to analogue multiplier according to Double deference
The multiplier chip that general principle is made, the utility model constitutes infrared carrier wave demodulator circuit with it, simple with circuit, debugging
Convenient advantage, wherein electric capacity C1 and shunt-resonant circuit CL collectively constitutes Linear phase-shift network, by the instantaneous frequency of frequency-modulated wave
Change transitions into instantaneous phase change.The effect of MC1496 is that frequency-modulated wave is multiplied with frequency modulation phase modulation ripple, is obtained after multiplication
Frequency discrimination signal, the signal after demodulation is double-end signal, becomes Single-end output after being processed through difference amplifier, the number after being demodulated
According to frame signal.Change shunt-resonant circuit CL parameters, you can obtain the frequency discrimination frequency of different carrier waves.
The utility model also had using infrared communication anti-electromagnetic interference capability strong, space access, realize it is simple etc.
Advantage.
Claims (4)
1. a kind of temperature measuring equipment, it is characterised in that be provided with power module, temperature detecting module, data transmission module, data
Processing module, input module and display module, the power module are installed on the high-voltage side bus end of primary cut-out, described
Temperature detecting module is installed on the Mume flower contact of primary cut-out, the data transmission module by infrared carrier wave modulation circuit and
Infrared carrier wave demodulator circuit is constituted, and the temperature signal data of temperature detecting module connects the input of infrared carrier wave modulation circuit, red
The infrared carrier wave modulated signal of outer carrier modulation circuit is sent to infrared carrier wave and demodulates by the output end of infrared carrier wave modulation circuit
Circuit, the demodulation temperature information data signal output of infrared carrier wave demodulator circuit connects the input of data processing module, input
The input of the output termination data processing module of module, the input of the output termination display module of data processing module；Electricity
Source module is powered for temperature detecting module, infrared carrier wave modulation circuit and infrared carrier wave demodulator circuit.
2. as claimed in claim 1 a kind of temperature measuring equipment, it is characterised in that the power module uses transformer for supplying power.
3. as claimed in claim 1 a kind of temperature measuring equipment, it is characterised in that the temperature detecting module uses TEMP
Device, temperature sensor is made up of K-type thermocouple with AD595 chips.
4. as claimed in claim 1 a kind of temperature measuring equipment, it is characterised in that the infrared carrier wave modulation circuit is shaken by carrier wave
Swing device and infrared transmitter is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347522.XU CN206208414U (en) | 2016-12-09 | 2016-12-09 | A kind of temperature measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347522.XU CN206208414U (en) | 2016-12-09 | 2016-12-09 | A kind of temperature measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208414U true CN206208414U (en) | 2017-05-31 |
Family
ID=58746430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347522.XU Expired - Fee Related CN206208414U (en) | 2016-12-09 | 2016-12-09 | A kind of temperature measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208414U (en) |
-
2016
- 2016-12-09 CN CN201621347522.XU patent/CN206208414U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20181209 |