CN109540201A - A kind of weak current engineering intelligent detection equipment - Google Patents
A kind of weak current engineering intelligent detection equipment Download PDFInfo
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- CN109540201A CN109540201A CN201811294785.2A CN201811294785A CN109540201A CN 109540201 A CN109540201 A CN 109540201A CN 201811294785 A CN201811294785 A CN 201811294785A CN 109540201 A CN109540201 A CN 109540201A
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- 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
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Abstract
The invention discloses a kind of weak current engineering intelligent detection equipments, including temperature sensor, humidity sensor, leakage detector, single-chip microcontroller, combined aural and visual alarm and power module, temperature sensor, humidity sensor, leakage detector, combined aural and visual alarm and power module are connect with single-chip microcontroller, temperature sensor and humidity sensor are packaged in one, the packaging cartridge of temperature sensor and humidity sensor is installed in control cabinet, leakage detector is set on the installation panel in control cabinet, and the conducting wire in the metallic channel of mounting plate passes through the detection ring of leakage detector；Power module includes voltage input end, the first potentiometer, second resistance, the second diode, the first triode, 3rd resistor, the first zener diode, the 4th resistance, the second triode, first capacitor, third transistor, the 5th resistance and voltage output end.Circuit structure of the present invention is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to weak electricity measuring apparatus field, in particular to a kind of weak current engineering intelligent detection equipment.
Background technique
Weak current engineering is a classification of electric power application, and electric power is applied can be divided by force according to the power of power Transmission power
Electricity and two class of light current.In weak current engineering field, especially in automatic control technology field, in the construction work cabinet of project,
Often there are network layout, power wiring.Therefore, in practice of construction, due in control cabinet conducting wire and electrical component be powered on,
Temperature may be caused to increase.In addition, there is likely to be wire insulation aging, or it is routed phenomena such as falling off, so as to draw
Electric leakage is played, from cause equipment fault.Therefore, it is necessary to in weak current engineering cabinet temperature and humidity and electric leakage etc. detect.
Existing weak current engineering intelligent detection equipment in control cabinet body by being arranged temperature sensor, humidity sensor and leakage
Electro-detection instrument, and temperature sensor, humidity sensor and leakage detector and control device are electrically connected, by control device and report
Alarm device electrically connects, so as to using the control device of control cabinet, realize the intelligence inspection of temperature and humidity and electric leakage in control cabinet
It surveys and alarms, improve weak current engineering detection efficiency.However, the member that the power pack of traditional weak current engineering intelligent detection equipment uses
Device is more, and circuit structure is complicated, and hardware cost is higher, it has not been convenient to safeguard.In addition, since traditional weak current engineering intelligent measurement is set
Standby power pack lacks corresponding circuit protection function, such as: lack current-limiting function, causes the safety and reliability of circuit
It is poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher weak current engineering intelligent detection equipment of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of weak current engineering intelligent detection equipment is constructed,
Including temperature sensor, humidity sensor, leakage detector, single-chip microcontroller, combined aural and visual alarm and power module, the temperature sensing
Device, humidity sensor, leakage detector, combined aural and visual alarm and power module are connect with the single-chip microcontroller, the temperature sensing
Device and humidity sensor are packaged in one, and the packaging cartridge of the temperature sensor and humidity sensor is installed in control cabinet, institute
Leakage detector is stated on the installation panel in the control cabinet, and the conducting wire in the metallic channel of the mounting plate is across described
The detection ring of leakage detector；
The power module include voltage input end, the first potentiometer, second resistance, the second diode, the first triode,
3rd resistor, the first zener diode, the 4th resistance, the second triode, first capacitor, third transistor, the 5th resistance and electricity
Output end is pressed, the voltage input end connects with the anode of a fixing end of first potentiometer and the second diode respectively
It connects, the base stage of first triode is connect with one end of the sliding end of first potentiometer and second resistance respectively, described
The emitter of first triode is connect with one end of the cathode of first zener diode and the 4th resistance respectively, and described first
The collector of triode respectively with another fixing end of first potentiometer, one end of 3rd resistor and the second triode
Base stage connection, the collector of the other end of the second resistance, the other end of 3rd resistor and the second triode is grounded, described
The emitter of second triode is connect with the base stage of the other end of the 4th resistance and third transistor respectively, and the described 2nd 2
The cathode of pole pipe is connect with one end of the anode of first zener diode and the 6th resistance respectively, the 6th resistance it is another
One end is connect with one end of the first capacitor and voltage output end respectively, the other end of the first capacitor and the described 3rd 3
The emitter of pole pipe connects, and the collector of the third transistor is connect with one end of the 5th resistance, the three or three pole
The collector of pipe passes through the 5th resistance eutral grounding, the model S-452T of second diode, the resistance of the 6th resistance
Value is 45k Ω.
In weak current engineering intelligent detection equipment of the present invention, the power module further includes the second capacitor, described
One end of second capacitor is connect with the collector of first triode, the other end of second capacitor and the two or three pole
The base stage of pipe connects, and the capacitance of second capacitor is 280pF.
In weak current engineering intelligent detection equipment of the present invention, the power module further includes third capacitor, described
One end of third capacitor is connect with the emitter of second triode, the other end of the third capacitor and the three or three pole
The base stage of pipe connects, and the capacitance of the third capacitor is 320pF.
In weak current engineering intelligent detection equipment of the present invention, first triode is PNP type triode.
In weak current engineering intelligent detection equipment of the present invention, second triode is PNP type triode.
In weak current engineering intelligent detection equipment of the present invention, the third transistor is PNP type triode.
Implement weak current engineering intelligent detection equipment of the invention, have the advantages that due to be equipped with temperature sensor,
Humidity sensor, leakage detector, single-chip microcontroller, combined aural and visual alarm and power module, power module include voltage input end, first
Potentiometer, second resistance, the second diode, the first triode, 3rd resistor, the first zener diode, the 4th resistance, the two or three
Pole pipe, first capacitor, third transistor, the 5th resistance and voltage output end, the power module and traditional weak current engineering are intelligently examined
The power pack of measurement equipment is compared, and the component used is less, due to saving some components, can reduce hardware in this way
Cost, in addition, the second diode and the 6th resistance be used to carry out current-limiting protection, therefore circuit structure is relatively simple, cost compared with
It is low, maintain easily, the safety and reliability of circuit it is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in weak current engineering intelligent detection equipment one embodiment of the present invention；
Fig. 2 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In weak current engineering intelligent detection equipment embodiment of the present invention, the structural representation of the weak current engineering intelligent detection equipment
Figure is as shown in Figure 1.In Fig. 1, which includes temperature sensor 1, humidity sensor 2, detection of electrical leakage
Instrument 3, single-chip microcontroller 4, combined aural and visual alarm 5 and power module 6, wherein temperature sensor 1, humidity sensor 2, leakage detector 3,
Combined aural and visual alarm 5 and power module 6 are connect with single-chip microcontroller 4, and temperature sensor 1 and humidity sensor 2 are packaged in one, temperature
The packaging cartridge of sensor 1 and humidity sensor 2 is installed in control cabinet, and leakage detector 3 is set to the installation panel in control cabinet
On, and the conducting wire in the metallic channel of mounting plate passes through the detection ring of leakage detector 3.
In the present embodiment, the temperature sensor 1 and humidity sensor 2 being packaged together can be set first, it can will
Temperature sensor 1 and humidity sensor 2 are packaged in a box body.The temperature sensor 1 is the temperature sensor equipped with transmitter,
Humidity sensor 2 is the humidity sensor equipped with transmitter.Temperature and humidity so as to arrive control cabinet vivo detection turn
Change the identifiable electric signal of single-chip microcontroller 4 into.This, which is packaged with temperature sensor 1 and the packaging cartridge of humidity sensor 2, may be mounted at
Need to monitor the place of temperature and humidity in control cabinet body, on the top cover as controlled cabinet body, or one of them of easy fever is electrical
Near element.Leakage detector 3 may be mounted on the installation panel in control cabinet, then will install in the metallic channel on panel
Conducting wire pass through the detection ring of the leakage detector 3, leakage detector 3 can detecte the drain conditions in control cabinet, and will
Testing result is transferred in single-chip microcontroller 4.Single-chip microcontroller 4 can be according to temperature sensor 1, humidity sensor 2 and leakage detector 3
Testing result controls combined aural and visual alarm 5.The weak current engineering intelligent detection equipment can be by the temperature and humidity and electric leakage in control cabinet
Intelligent measurement and alarm improve weak current engineering detection efficiency.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes voltage input end
Vin, the first potentiometer RP1, second resistance R2, the second diode D2, the first triode Q1,3rd resistor R3, the first pressure stabilizing two
Pole pipe D1, the 4th resistance R4, the second triode Q2, first capacitor C1, third transistor Q3, the 5th resistance R5 and voltage output end
Vo, voltage input end Vin are connect with the anode of a fixing end of the first potentiometer RP1 and the second diode D2 respectively, and first
The base stage of triode Q1 is connect with one end of the sliding end of the first potentiometer RP1 and second resistance R2 respectively, the first triode Q1
Emitter connect respectively with one end of the cathode of the first zener diode D1 and the 4th resistance R4, the current collection of the first triode Q1
Pole is connect with the base stage of another fixing end of the first potentiometer RP1, one end of 3rd resistor R3 and the second triode Q2 respectively,
The collector of the other end of second resistance R2, the other end of 3rd resistor R3 and the second triode Q2 is grounded, the second triode
The emitter of Q2 is connect with the base stage of the other end of the 4th resistance R4 and third transistor Q3 respectively, the cathode of the second diode D2
It is connect respectively with one end of the anode of the first zener diode D1 and the 6th resistance R6, the other end of the 6th resistance R6 is respectively with
One end of one capacitor 1C is connected with voltage output end Vo, and the other end of first capacitor C1 and the emitter of third transistor Q3 connect
It connects, the collector of third transistor Q3 is connect with one end of the 5th resistance R5, and the collector of third transistor Q3 passes through the 5th electricity
Hinder R5 ground connection.
The power module 6 compared with the power pack of traditional weak current engineering intelligent detection equipment, the component that uses compared with
Few, circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition,
Second diode D2 is Current Limiting Diodes, and for carrying out current-limiting protection, the 6th resistance R6 is current-limiting resistance, for carrying out current limliting guarantor
Shield, therefore the safety and reliability of circuit is higher.It is noted that in the present embodiment, the model of the second diode D2
The resistance value of S-452T, the 6th resistance R6 are 45k Ω, and certainly, in practical applications, the second diode D2 can also use its alloytype
Number diode with similar functions, the resistance value of the 6th resistance R6 can adjust accordingly as the case may be, that is, the
The resistance value of six resistance R6 can be increased accordingly or be reduced as the case may be.
The working principle of the power module 6 is as follows: use the emitter of the second triode Q2 as reference level, output electricity
Pressure is compared after partial pressure sampling with it, when output voltage is increased because of certain reason, the base voltage of third transistor Q3
Also it increases, the voltage on first capacitor C1 increases therewith, and the base potential decline of the first triode Q1 makes output voltage tend to be steady
It is fixed.
In the present embodiment, the first triode Q1 be PNP type triode, the second triode Q2 be PNP type triode, the three or three
Pole pipe Q3 is PNP type triode.Certainly, in practical applications, the first triode Q1, the second triode Q2 and third transistor Q3
It can also be NPN type triode, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes the second capacitor C2, one end of the second capacitor C2 and the first triode Q1
Collector connection, the other end of the second capacitor C2 connect with the base stage of the second triode Q2.Second capacitor C2 is coupled capacitor,
For preventing the interference between the first triode Q1 and the second triode Q2, to further enhance the safety of circuit and reliable
Property.It is noted that the capacitance of the second capacitor C2 is 280pF in the present embodiment, certainly, in practical applications, the second electricity
The capacitance for holding C2 can adjust accordingly as the case may be, that is, the capacitance of the second capacitor C2 can be according to specific
Situation is increased accordingly or is reduced.
In the present embodiment, which further includes third capacitor C3, one end of third capacitor C3 and the second triode Q2
Emitter connection, the other end of third capacitor C3 connect with the base stage of third transistor Q3.Third capacitor C3 is coupled capacitor,
For preventing the interference between the second triode Q2 and third transistor Q3, further to enhance the safety of circuit and reliable
Property.It is noted that the capacitance of third capacitor C3 is 320pF in the present embodiment, certainly, in practical applications, third electricity
The capacitance for holding C3 can adjust accordingly as the case may be, that is, the capacitance of third capacitor C3 can be according to specific
Situation is increased accordingly or is reduced.
In short, in the present embodiment, the power module 6 compared with the power pack of traditional weak current engineering intelligent detection equipment,
The component that it is used is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can drop in this way
Low hardware cost.In addition, be equipped with Current Limiting Diodes and current-limiting resistance in the power module 6, therefore the safety of circuit and reliable
Property is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of weak current engineering intelligent detection equipment, which is characterized in that including temperature sensor, humidity sensor, detection of electrical leakage
Instrument, single-chip microcontroller, combined aural and visual alarm and power module, the temperature sensor, humidity sensor, leakage detector, sound-light alarm
Device and power module are connect with the single-chip microcontroller, and the temperature sensor and humidity sensor are packaged in one, the temperature
The packaging cartridge of sensor and humidity sensor is installed in control cabinet, and the leakage detector is set to the installation in the control cabinet
On panel, and the conducting wire in the metallic channel of the mounting plate passes through the detection ring of the leakage detector；
The power module includes voltage input end, the first potentiometer, second resistance, the second diode, the first triode, third
Resistance, the first zener diode, the 4th resistance, the second triode, first capacitor, third transistor, the 5th resistance and voltage are defeated
Outlet, the voltage input end are connect with the anode of a fixing end of first potentiometer and the second diode respectively, institute
The base stage for stating the first triode is connect with one end of the sliding end of first potentiometer and second resistance respectively, and the described 1st
The emitter of pole pipe is connect with one end of the cathode of first zener diode and the 4th resistance respectively, first triode
Collector respectively with the base stage of another fixing end of first potentiometer, one end of 3rd resistor and the second triode connect
It connecing, the collector of the other end of the second resistance, the other end of 3rd resistor and the second triode is grounded, and the described 2nd 3
The emitter of pole pipe is connect with the base stage of the other end of the 4th resistance and third transistor respectively, second diode
Cathode is connect with one end of the anode of first zener diode and the 6th resistance respectively, the other end point of the 6th resistance
It is not connect with one end of the first capacitor and voltage output end, the other end of the first capacitor and the third transistor
Emitter connection, the collector of the third transistor are connect with one end of the 5th resistance, the collection of the third transistor
Electrode is 45k by the 5th resistance eutral grounding, the model S-452T of second diode, the resistance value of the 6th resistance
Ω。
2. weak current engineering intelligent detection equipment according to claim 1, which is characterized in that the power module further includes
Two capacitors, one end of second capacitor are connect with the collector of first triode, the other end of second capacitor with
The base stage of second triode connects, and the capacitance of second capacitor is 280pF.
3. weak current engineering intelligent detection equipment according to claim 2, which is characterized in that the power module further includes
Three capacitors, one end of the third capacitor are connect with the emitter of second triode, the other end of the third capacitor with
The base stage of the third transistor connects, and the capacitance of the third capacitor is 320pF.
4. according to claim 1 to weak current engineering intelligent detection equipment described in 3 any one, which is characterized in that described first
Triode is PNP type triode.
5. according to claim 1 to weak current engineering intelligent detection equipment described in 3 any one, which is characterized in that described second
Triode is PNP type triode.
6. according to claim 1 to weak current engineering intelligent detection equipment described in 3 any one, which is characterized in that the third
Triode is PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294785.2A CN109540201A (en) | 2018-11-01 | 2018-11-01 | A kind of weak current engineering intelligent detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294785.2A CN109540201A (en) | 2018-11-01 | 2018-11-01 | A kind of weak current engineering intelligent detection equipment |
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| Publication Number | Publication Date |
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| CN109540201A true CN109540201A (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811294785.2A Pending CN109540201A (en) | 2018-11-01 | 2018-11-01 | A kind of weak current engineering intelligent detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098892A (en) * | 2020-09-18 | 2020-12-18 | 新兴铸管股份有限公司 | Electricity leakage alarm circuit for electricity utilization equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102385355A (en) * | 2011-06-21 | 2012-03-21 | 福州海智电子科技有限公司 | Intelligent dynamic environment monitoring system and monitoring method thereof |
| US20120161972A1 (en) * | 2010-12-28 | 2012-06-28 | Hon Hai Precision Industry Co., Ltd. | Temperature monitoring circuit |
| CN202994892U (en) * | 2013-01-15 | 2013-06-12 | 福州福发发电设备有限公司 | Power supply failure detection unit |
| CN204302847U (en) * | 2015-01-12 | 2015-04-29 | 成都博智维讯信息技术有限公司 | The serial regulating circuit of high voltage stability coefficient |
| CN207300297U (en) * | 2017-06-07 | 2018-05-01 | 郑州工商学院 | A kind of weak current engineering intelligent detection equipment |
-
2018
- 2018-11-01 CN CN201811294785.2A patent/CN109540201A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120161972A1 (en) * | 2010-12-28 | 2012-06-28 | Hon Hai Precision Industry Co., Ltd. | Temperature monitoring circuit |
| CN102385355A (en) * | 2011-06-21 | 2012-03-21 | 福州海智电子科技有限公司 | Intelligent dynamic environment monitoring system and monitoring method thereof |
| CN202994892U (en) * | 2013-01-15 | 2013-06-12 | 福州福发发电设备有限公司 | Power supply failure detection unit |
| CN204302847U (en) * | 2015-01-12 | 2015-04-29 | 成都博智维讯信息技术有限公司 | The serial regulating circuit of high voltage stability coefficient |
| CN207300297U (en) * | 2017-06-07 | 2018-05-01 | 郑州工商学院 | A kind of weak current engineering intelligent detection equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098892A (en) * | 2020-09-18 | 2020-12-18 | 新兴铸管股份有限公司 | Electricity leakage alarm circuit for electricity utilization equipment |
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Application publication date: 20190329 |