CN109489716A - Temperature and humidity control system working state monitoring instrument - Google Patents
Temperature and humidity control system working state monitoring instrument Download PDFInfo
- Publication number
- CN109489716A CN109489716A CN201811143855.4A CN201811143855A CN109489716A CN 109489716 A CN109489716 A CN 109489716A CN 201811143855 A CN201811143855 A CN 201811143855A CN 109489716 A CN109489716 A CN 109489716A
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- China
- Prior art keywords
- temperature
- control system
- humidity control
- working state
- state monitoring
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The present invention relates to a kind of temperature and humidity control system working state monitoring instrument, its structure is, the receiving end of data-acquisition loop is connected by connecting terminal block with temperature and humidity control system, the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, the output end of A/D conversion module is connected with single-chip microcontroller, the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, and the output end of D.C. contactor connects buzzer；The crystal oscillator clock chip is connected with single-chip microcontroller.After the device carries out analog-to-digital conversion by 7 analog quantitys of acquisition temperature and humidity control system, the working condition of temperature and humidity control system is judged using mcu programming, gate circuit, and a distant place and local alarm can be issued in temperature and humidity control system fault case in time, it ensure that the safe and stable operation of equipment and power grid.
Description
Technical field
The present invention relates to a kind of automatization controlling device more particularly to a kind of temperature and humidity control system working state monitorings
Instrument is mainly used in each voltage class switchgear in electric power monitoring system, mechanism case, terminal box, the temperature installed in convergence control cabinet
The operating status of humidity regulation system, especially service condition are severe, and humiture control system whole year, which puts into operation, leads to element fault
The higher place of rate.
Background technique
Humiture control system is common secondary auxiliary device in electric system, is mounted on switchgear, mechanism case, terminal
In the closings screen cabinet such as case, convergence control cabinet, guarantee that the temperature and humidity of sealed environment meets the requirement of electrical component and mechanical equipment to environment,
Its stable operation directly affects equipment, power grid security.Since quantity radix is very big, and whole year 90% on electricity operation, failure rate also compared with
Height, defect sum occupy first of various kinds of equipment defect, and the regulation of the particularity and O&M tour vacuum phase due to its installation site,
The fault discovery time much lags behind defect time of origin, hides some dangers for safety in production.In recent years, due to humiture control
The system failure leads to the corrosion of mechanical organ, operation clamping stagnation, the abnormal operating state of electronic component, terminal block corrosion, insulation
Decline and all kinds of derivative failures happen occasionally, and seriously threaten power network safety operation.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, has developed a kind of temperature and humidity control system working condition prison
Instrument is surveyed, monitors the working condition of humiture control system, it is non-just in temperature and humidity control device state of a control and execution original part appearance
It can be alerted immediately when normal working condition.
Technical scheme is as follows:
Temperature and humidity control system working state monitoring instrument, shell is interior to be equipped with data-acquisition loop, A/D conversion module, single-chip microcontroller, door
Control trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop by connecting terminal block with it is warm and humid
Spend control system be connected, the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/D conversion module it is defeated
Outlet is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, D.C. contactor
Output end connects buzzer；The crystal oscillator clock chip is connected with single-chip microcontroller.
The shell is equipped with connecting terminal block, external power supply terminal block and buzzer.
The data-acquisition loop includes supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate electric current
Acquisition circuit, ventilation fan current acquisition circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit
It is connected by connecting terminal with the power supply of temperature and humidity control system, the heating plate voltage acquisition circuit and heating plate electric current are adopted
Collection circuit is connected by connecting terminal with the heating plate of temperature and humidity control system, and ventilation fan current acquisition circuit passes through connecting terminal
It is connect with the ventilation fan of temperature and humidity control system；Temperature acquisition circuit is passed by the temperature of connecting terminal and temperature and humidity control system
Sensor is connected；The humidity collection circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
The single-chip microcontroller is MCS-51 series 80C51 single-chip microcontroller.
The gate trigger circuit is 74LS20 HD74LS34P chip.
The buzzer is FM-12HB-907.
The connecting terminal block is connect with telemechanical master control device.
Advantages of the present invention effect is as follows:
1. if temperature and humidity control system working state monitoring instrument is sent out immediately temperature and humidity control system is in abnormal operating state
It alerts out.
2. there is control loop failure or improper logical states, temperature and humidity control system work shape in temperature and humidity control system
State monitor issues alarm immediately.
3. temperature and humidity control system executes original part (heating plate or fan) and breaks down, temperature and humidity control system work shape
State monitor issues alarm immediately.
4. temperature and humidity control system working state monitoring instrument provides a pair of of hard contact of alarm, used for telecontrol system.
5. temperature and humidity control system working state monitoring instrument failure response time≤1s, buzzer loudness >=40dB.
6. temperature and humidity control system working state monitoring instrument can find temperature and humidity control system failure without time delay, make to set
Standby defect is handled in time, ensure that the safe and stable operation of equipment indirectly.
7. alleviating the work load of operation maintenance personnel, improves working efficiency and equipment automatization is horizontal.
Detailed description of the invention
Fig. 1 is the surface structure schematic diagram of shell of the invention.
Fig. 2 is the working principle of the invention and logic theory schematic block diagram.
Fig. 3 is electrical principle schematic block diagram of the invention.
Fig. 4 is the circuit connection schematic block diagram of temperature and humidity control system.
Fig. 5 is temperature and humidity control system and electrical connection circuit schematic block diagram of the present invention.
In Fig. 1,1-1, shell, 1-2, mounting hole, 1-3, connecting terminal block, 1-4, external power supply terminal block, 1-5, buzzing
Device.
Specific embodiment
Embodiment
As shown, temperature and humidity control system working state monitoring instrument, shell is interior to be equipped with data-acquisition loop, A/D conversion
Module, single-chip microcontroller, gate trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop is by connecing
Line terminals row is connected with temperature and humidity control system, and the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/
The output end of D conversion module is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor,
The output end of D.C. contactor connects buzzer；The crystal oscillator clock chip is connected with single-chip microcontroller.
The shell is equipped with connecting terminal block, external power supply terminal block and buzzer.
The data-acquisition loop includes supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate electric current
Acquisition circuit, ventilation fan current acquisition circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit
It is connected by connecting terminal with the power supply of temperature and humidity control system, the heating plate voltage acquisition circuit and heating plate electric current are adopted
Collection circuit is connected by connecting terminal with the heating plate of temperature and humidity control system, and ventilation fan current acquisition circuit passes through connecting terminal
It is connect with the ventilation fan of temperature and humidity control system；Temperature acquisition circuit is passed by the temperature of connecting terminal and temperature and humidity control system
Sensor is connected；The humidity collection circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
The single-chip microcontroller is MCS-51 series 80C51 single-chip microcontroller.
The gate trigger circuit is 74LS20 HD74LS34P chip.
The buzzer is FM-12HB-907.
The connecting terminal block is connect with telemechanical master control device.
Steps are as follows for use of the invention:
Using four mounting hole 1-2 of temperature and humidity control system working state monitoring instrument, using M4 screw by Temperature and Humidity Control system
System working state monitoring instrument is fixed in the enclosed space, after fixed, according to the following order of connection by temperature and humidity control
Each element of system processed accesses temperature and humidity control system working state monitoring instrument, specifically:
Temperature and humidity control system working state monitoring instrument terminal row wiring:
1-2 connecting terminal is in parallel with temperature and humidity control system controller operating voltage；
3-4 connecting terminal and temperature and humidity control system heating plate end voltage parallel；
5-6 connecting terminal is connected with temperature and humidity control system heating plate loop current；
7-8 connecting terminal and temperature and humidity control system ventilation fan end voltage parallel；
9-10 connecting terminal is connected with temperature and humidity control system ventilation fan loop current；
11-12 connecting terminal is connect with temperature sensor；
13-14 connecting terminal is connect with humidity sensor；
15-16 connecting terminal is alarm output contact.
After wiring, engaging means working power, installment work is finished.
When monitoring, device voltage, the heating plate end voltage, heating plate loop current, ventilation in temperature and humidity control system are taken
Fanning end voltage, ventilation fan loop current, temperature, humidity, totally 7 analog quantitys access temperature and humidity control system working state monitoring instrument,
After carrying out digital-to-analogue conversion to simulation value, using gate circuit and mcu programming, the state of a control of temperature and humidity control system is judged
Whether whether normal and element is intact, if being judged as fault case, starts a distant place and local alarm function, prompts related personnel's dress
The fault case set.
Claims (7)
1. temperature and humidity control system working state monitoring instrument, it is characterised in that be equipped with data-acquisition loop, A/D modulus of conversion in shell
Block, single-chip microcontroller, gate trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop pass through wiring
Terminal block is connected with temperature and humidity control system, and the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/D
The output end of conversion module is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor,
The output end of D.C. contactor connects buzzer；The crystal oscillator clock chip is connected with single-chip microcontroller.
2. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that on the shell
Equipped with connecting terminal block, external power supply terminal block and buzzer.
3. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the data are adopted
Collection circuit includes that supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate current acquisition circuit, ventilation fan electric current are adopted
Collect circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit passes through connecting terminal and temperature and humidity
The power supply of control system is connected, the heating plate voltage acquisition circuit and heating plate current acquisition circuit by connecting terminal with
The heating plate of temperature and humidity control system is connected, and ventilation fan current acquisition circuit is changed by connecting terminal and temperature and humidity control system
Gas fan connection；Temperature acquisition circuit is connected by connecting terminal with the temperature sensor of temperature and humidity control system；The humidity
Acquisition circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
4. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the single-chip microcontroller
For MCS-51 series 80C51 single-chip microcontroller.
5. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the gate touching
Power Generation Road is 74LS20 HD74LS34P chip.
6. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the buzzer
For FM-12HB-907.
7. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the terminals
Son row connect with telemechanical master control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811143855.4A CN109489716A (en) | 2018-09-29 | 2018-09-29 | Temperature and humidity control system working state monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811143855.4A CN109489716A (en) | 2018-09-29 | 2018-09-29 | Temperature and humidity control system working state monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489716A true CN109489716A (en) | 2019-03-19 |
Family
ID=65690629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811143855.4A Pending CN109489716A (en) | 2018-09-29 | 2018-09-29 | Temperature and humidity control system working state monitoring instrument |
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| Country | Link |
|---|---|
| CN (1) | CN109489716A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050043861A1 (en) * | 2003-08-19 | 2005-02-24 | Thompson Michael J. | Integrated protection and control system for a power system substation |
| CN202120152U (en) * | 2011-06-23 | 2012-01-18 | 华北电网有限公司唐山供电公司 | Temperature and humidity controller with self-checking capability |
| CN203054623U (en) * | 2012-06-12 | 2013-07-10 | 南通恒鼎重型机床有限公司 | Condensation automatic controller |
| CN103516052A (en) * | 2013-10-12 | 2014-01-15 | 河南开启电力实业有限公司 | Power distribution equipment on-line monitoring early-warning terminal |
| CN203813533U (en) * | 2014-05-12 | 2014-09-03 | 陕西思普瑞数码有限公司 | Monitoring system for power supply and distribution line |
| CN104617495A (en) * | 2014-12-15 | 2015-05-13 | 国家电网公司 | Outdoor cabinet anti-condensation device and control method thereof |
| CN207490604U (en) * | 2017-09-22 | 2018-06-12 | 武汉微智创大科技有限公司 | A kind of wireless distributed monitoring device and system |
-
2018
- 2018-09-29 CN CN201811143855.4A patent/CN109489716A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050043861A1 (en) * | 2003-08-19 | 2005-02-24 | Thompson Michael J. | Integrated protection and control system for a power system substation |
| CN202120152U (en) * | 2011-06-23 | 2012-01-18 | 华北电网有限公司唐山供电公司 | Temperature and humidity controller with self-checking capability |
| CN203054623U (en) * | 2012-06-12 | 2013-07-10 | 南通恒鼎重型机床有限公司 | Condensation automatic controller |
| CN103516052A (en) * | 2013-10-12 | 2014-01-15 | 河南开启电力实业有限公司 | Power distribution equipment on-line monitoring early-warning terminal |
| CN203813533U (en) * | 2014-05-12 | 2014-09-03 | 陕西思普瑞数码有限公司 | Monitoring system for power supply and distribution line |
| CN104617495A (en) * | 2014-12-15 | 2015-05-13 | 国家电网公司 | Outdoor cabinet anti-condensation device and control method thereof |
| CN207490604U (en) * | 2017-09-22 | 2018-06-12 | 武汉微智创大科技有限公司 | A kind of wireless distributed monitoring device and system |
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| PB01 | Publication | ||
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Application publication date: 20190319 |