CN206945148U - Temperature polling instrument with temperature storage - Google Patents
Temperature polling instrument with temperature storage Download PDFInfo
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- CN206945148U CN206945148U CN201720656907.2U CN201720656907U CN206945148U CN 206945148 U CN206945148 U CN 206945148U CN 201720656907 U CN201720656907 U CN 201720656907U CN 206945148 U CN206945148 U CN 206945148U
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- electric capacity
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- triode
- temperature
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Abstract
The utility model discloses a kind of temperature polling instrument with temperature storage, including channel selection circuit, signal conditioning circuit, A/D converter, single-chip microcomputer, memory, wireless communication module, power module, audible-visual annunciator, display and multiple temperature sensors, the temperature data of detection is sent to mobile terminal by single-chip microcomputer by wireless communication module, and the input of audible-visual annunciator and the alarm command output end of single-chip microcomputer connect；Power module includes the first triode, the second triode, transformer, the first voltage-stabiliser tube, the second diode, the 3rd diode, light emitting diode, fuse, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity and the 3rd electric capacity.Implement the temperature polling instrument of the present utility model with temperature storage, have the advantages that：It can understand that scene temperature situation, circuit structure are relatively simple, cost is relatively low, the safety and reliability of circuit is higher whenever and wherever possible.
Description
Technical field
It the utility model is related to logging field, more particularly to a kind of temperature polling instrument with temperature storage.
Background technology
Temperature polling instrument is widely used in power plant, power station and industrial environment temperature survey etc., and temperature has
Multiple passages, the temperature of difference is tested, can be communicated by RS485 buses with host computer, receive the finger of host computer
Make and the real time temperature at scene and related off-limit alarm temperature value are transmitted to host computer.Administrative staff can only be on host computer
Relevant information is just will appreciate that, when administrative staff are not beside host computer, it is impossible to understand relevant information, that is, administrative staff
Scene temperature situation can not be understood whenever and wherever possible, and experience is poor.In addition, the circuit of traditional temperature polling instrument due to structure more
Complexity, cost are higher.Simultaneously because lacking corresponding circuit protection function, cause the safety and reliability of circuit relatively low.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, there is provided one kind can be at any time
Scene temperature situation is understood everywhere, circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher has
The temperature polling instrument of temperature storage.
Technical scheme is used by the utility model solves its technical problem：Construct a kind of temperature with temperature storage
Logging, including channel selection circuit, signal conditioning circuit, A/D converter, single-chip microcomputer, memory, wireless communication module, electricity
Source module, audible-visual annunciator, display and multiple temperature sensors, each temperature sensor are electric with the channel selecting
One input on road is corresponding to be connected, and the output end of the channel selection circuit and the input of the signal conditioning circuit connect
Connect, the output end of the signal conditioning circuit is connected with the input end of analog signal of the A/D converter, the A/D converter
Digital signal output end be connected with the input of the single-chip microcomputer, the selection signal control terminal of the single-chip microcomputer and the passage
The selection signal control terminal connection of selection circuit, the data input output end of the memory and the data input of the single-chip microcomputer
The temperature data of detection is passed through the radio communication by output end connection, the temperature data for storing detection, the single-chip microcomputer
Module is sent to mobile terminal, and the power module is connected with the single-chip microcomputer, for powering, the input of the audible-visual annunciator
End is connected with the alarm command output end of the single-chip microcomputer, and the idsplay order of the input of the display and the single-chip microcomputer is defeated
Go out end connection；
The power module includes the first triode, the second triode, transformer, the first voltage-stabiliser tube, the second diode, the
Three diodes, light emitting diode, fuse, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, first
Electric capacity, the second electric capacity and the 3rd electric capacity, one end of one end of first electric capacity, one end of second resistance and the 4th resistance connect
Connect one end of 220V alternating currents, the other end of one end connection 220V alternating currents of the fuse, the other end of the fuse
Be connected with the other end of first electric capacity, the other end of the second resistance respectively with the base stage of first triode and
One end connection of five electric capacity, the emitter stage of first triode respectively with one end of the first resistor and 3rd resistor one
End connection, the other end of the 3rd resistor are connected with the anode of first voltage-stabiliser tube and one end of the 3rd electric capacity respectively, institute
The other end for stating the 3rd electric capacity is connected with the base stage of second triode, the other end of the first resistor and the second triode
Emitter stage be connected with the other end of the fuse, the other end of the 5th electric capacity collection with second triode respectively
One end of electrode and the second electric capacity connects；
The other end of 4th resistance is connected with one end of the first primary coil of the transformer, the transformer
The other end of first primary coil is connected with the colelctor electrode of first triode, the other end of second electric capacity respectively with institute
The one end for stating the second primary coil of transformer connects with the negative electrode of the second diode, the anode of second diode with it is described
The other end connection of fuse, the other end of the negative electrode of first voltage-stabiliser tube and the second primary coil of the transformer connect
Connect, one end of the secondary coil of transformer one end, one end of the 5th resistance, light-emitting diodes with the 4th electric capacity respectively
The anode of pipe connects with voltage output end, the other end of the 4th electric capacity, the other end of the 5th resistance and light emitting diode
Anode of the negative electrode with the 3rd diode is connected, the other end of the secondary coil of the transformer and the 3rd diode
Negative electrode connection.
Described in the utility model with the temperature polling instrument of temperature storage, the power module also includes the 6th electricity
Hold, one end of the 6th electric capacity is connected with the colelctor electrode of first triode, the other end of the 6th electric capacity with it is described
The other end connection of first primary coil of transformer, the capacitance of the 3rd electric capacity is 20PF, the electricity of the 5th electric capacity
Capacitance is 40PF, and the resistance of the 4th resistance is 4.7K Ω, and the capacitance of the 6th electric capacity is 50PF.
Described in the utility model with the temperature polling instrument of temperature storage, the power module also includes the 6th electricity
Resistance, one end of the 6th resistance are connected with one end of the 3rd electric capacity, the other end and described first of the 6th resistance
The anode connection of voltage-stabiliser tube, the resistance of the 6th resistance is 100 Ω.
In the temperature polling instrument described in the utility model stored with temperature, first triode and the two or three pole
Pipe is NPN type triode.
Described in the utility model with the temperature polling instrument of temperature storage, the wireless communication module is bluetooth mould
Block, WIFI module, GPRS module, Zigbee module, CDMA module or WCDMA modules.
Implement the temperature polling instrument of the present utility model with temperature storage, have the advantages that：Due to provided with logical
Road selection circuit, signal conditioning circuit, A/D converter, single-chip microcomputer, memory, wireless communication module, power module, acousto-optic report
The temperature data of detection can be sent to by alert device, display and multiple temperature sensors, single-chip microcomputer by wireless communication module
Mobile terminal, power module include the first triode, the second triode, transformer, the first voltage-stabiliser tube, the second diode, the 3rd
Diode, light emitting diode, fuse, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first electricity
Appearance, the second electric capacity and the 3rd electric capacity, the component that power module uses is less, and the 3rd electric capacity and the 5th electric capacity are used to prevent from doing
Disturb, the 4th resistance is used for overcurrent protection, therefore can understand that scene temperature situation, circuit structure be relatively simple, cost whenever and wherever possible
Relatively low, circuit safety and reliability is higher.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Structural representation in temperature polling instrument one embodiment that Fig. 1 for the utility model there is temperature to store；
Fig. 2 is the circuit theory diagrams of power module in the embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
, should the temperature patrol inspection with temperature storage in the temperature polling instrument embodiment that there is the utility model temperature to store
The structural representation of instrument is as shown in Figure 1.In Fig. 1, channel selection circuit 1, letter should be included with the temperature polling instrument of temperature storage
It is number modulate circuit 2, A/D converter 3, single-chip microcomputer 4, memory 5, wireless communication module 6, power module 7, audible-visual annunciator 8, aobvious
Show device 9 and multiple temperature sensors 10, each temperature sensor 10 is corresponding with an input of channel selection circuit 1 to be connected
Connect, the output end of channel selection circuit 1 is connected with the input of signal conditioning circuit 2, the output end and A/ of signal conditioning circuit 2
The input end of analog signal connection of D converters 3, the digital signal output end of A/D converter 3 are connected with the input of single-chip microcomputer 4,
The selection signal control terminal of single-chip microcomputer 4 is connected with the selection signal control terminal of channel selection circuit 1, the data input of memory 5
Output end is connected with the data input output end of single-chip microcomputer 4, the temperature data for storing detection, and single-chip microcomputer 4 is by the temperature of detection
Degrees of data is sent to mobile terminal by wireless communication module 6, and mobile terminal can be mobile phone or tablet personal computer, such custodian
Member just can carry with mobile terminal, understand scene temperature situation whenever and wherever possible.It is noted that wireless communication module 6 can
To be bluetooth module, WIFI module, GPRS module, Zigbee module, CDMA module or WCDMA modules etc..
Power module 7 is connected with single-chip microcomputer 4, for powering, and the alarm of the input and single-chip microcomputer 4 of audible-visual annunciator 8 refers to
Output end is made to connect, the input of display 9 is connected with the idsplay order output end of single-chip microcomputer 4.
Multiple temperature sensors 10 are arranged on the position for needing to detect, and should can be patrolled with the temperature polling instrument of temperature storage
Return measurement temperature data.Each position for needing thermometric sets a temperature sensor 10, and the signal that temperature sensor 10 measures is most
Export and handled to single-chip microcomputer 4 eventually, multiple temperature sensors 10 should be carried out with the temperature polling instrument of temperature storage touring
Detection, the order of circling measurment are exported to channel selection circuit 1 by single-chip microcomputer 4, and control passage selection circuit 1 is by the sequential set
Wherein passage closes all the way for selection so that in the temperature signal access signal conditioning circuit 2 that a temperature sensor 10 detects, inspection
The temperature data of testing temperature sensor 10, and be stored in memory 5, the temperature data stored in memory 5 can quilt
Single-chip microcomputer 4 calls.
Fig. 2 is the circuit theory diagrams of power module in the present embodiment, and in Fig. 2, the power module 7 includes the first triode
Q1, the second triode Q2, transformer T, the first voltage-stabiliser tube D1, the second diode D2, the 3rd diode D3, LED,
Fuse F1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the first electric capacity C1,
Two electric capacity C2 and the 3rd electric capacity C3, wherein, the first electric capacity C16 one end, the one of second resistance R2 one end and the 4th resistance R4
End is all connected with one end of 220V alternating currents, and the other end of fuse F1 one end connection 220V alternating currents, fuse F1's is another
End is connected with the first electric capacity C1 other end, and the second resistance R2 other end is electric with the first triode Q1 base stage and the 5th respectively
Hold C5 one end connection, the first triode Q1 emitter stage connects with first resistor R1 one end and 3rd resistor R3 one end respectively
Connect, the 3rd resistor R3 other end is connected with the first voltage-stabiliser tube D1 anode and the 3rd electric capacity C3 one end respectively, the 3rd electric capacity
The C3 other end is connected with the second triode Q2 base stage, the first resistor R1 other end and the second triode Q2 emitter stage with
Fuse F1 other end connection, the 5th electric capacity C5 other end colelctor electrode and the second electric capacity C2 with the second triode Q2 respectively
One end connection.
In the present embodiment, the 4th resistance R4 other end is connected with transformer T the first primary coil L1 one end, transformation
Device T the first primary coil L1 other end is connected with the first triode Q1 colelctor electrode, the second electric capacity C2 other end difference
Be connected with transformer T the second primary coil L2 one end and the second diode D2 negative electrode, the second diode D2 anode with
Fuse F1 other end connection, the first voltage-stabiliser tube D1 negative electrode are connected with transformer T the second primary coil L2 other end,
Transformer T secondary coil L3 one end one end, the 5th resistance R5 one end, light emitting diode with the 4th electric capacity C4 respectively
LED anode connects with voltage output end V1, the 4th electric capacity the C4 other end, the 5th resistance the R5 other end and light emitting diode
Anode of the LED negative electrode with the 3rd diode D3 is connected, transformer T secondary coil the L3 other end and the 3rd diode D3
Negative electrode connection.
The power module 7 is compared with traditional power circuit, and the component that it is used is less, and circuit structure is relatively simple,
Hardware cost can be so saved, therefore cost is relatively low.In addition, the 3rd electric capacity C3 and the 5th electric capacity C5 are coupled capacitor, the
Three electric capacity C3 and the 5th electric capacity C5 are used to prevent the interference between the first triode Q1 and the second triode Q2, the 4th resistance R4
For current-limiting resistance, for carrying out overcurrent protection to the branch road between second resistance R1 and transformer T, therefore the security of circuit and
Reliability is higher.Above-mentioned 3rd electric capacity C3 capacitance is 20PF, and the 5th electric capacity C5 capacitance is 40PF, the 4th resistance R4's
Resistance is 4.7K Ω.
In the present embodiment, after switching on power, the first electric capacity C1 has 300V or so DC voltage, passes through second resistance R2
Base stage to the first triode Q1 provides electric current, and the first triode Q1 emitter stage has first resistor R1, the first triode Q1's
Base stage obtain it is electric after, collector current can be produced by transformer T the first primary coil L1, and simultaneously the second of transformer T
Induced voltage is produced on primary coil L2 and transformer T secondary coil L3.Transformer T secondary coil L3 is exported by the three or two
Voltage output end V1 powering loads are connected after pole pipe D3 rectifications, the 4th electric capacity C4 filtering.Transformer T the second primary coil L2
The sampling rate being made up of after the second diode D2 rectifications, the second electric capacity C2 filtering the first voltage-stabiliser tube D1, the second triode Q2
Compared with circuit, the height of output voltage is detected, wherein transformer T the second primary coil L2 and the second electric capacity C2 also form the one or three
Pole pipe Q1 positive-feedback circuit, the first triode Q1 is allowed to be operated in the higher-order of oscillation, ceaselessly the first primary coil to transformer T
L1 powers, and when output voltage raises, transformer T the second primary coil L2, the first voltage-stabiliser tube D1 sampling rates relatively cause second
Triode Q2 is turned on, and the first triode Q1 base current reduces, and the first triode Q1 collector current reduces, load capacity
Diminish, so as to cause output voltage to reduce, after output voltage reduces, can end again after the second triode Q2 samplings, the one or three
Pole pipe Q1 load capacity becomes strong, and output voltage can raise again, so plays automatic voltage regulation effect.
When load is overloaded or be short-circuit, the first triode Q1 collector current is increased, and first resistor R1 can be produced
Higher pressure drop, high voltage caused by this overload or short circuit can allow the second triode Q2 saturations to be led by 3rd resistor R3
Logical, the 4th electric capacity C4 here functions as the effect of speed-up capacitor, and the second triode Q2 can be allowed to turn on the most fast time, so as to allow the
One triode Q1 cut-offs, which stop output, prevents overload from damaging.Change first resistor R1 size, thus it is possible to vary load capacity.
First triode Q1 is operated on off state, and when the first triode Q1 ends, transformer T can produce very high electricity
Magnetic induction voltage, under no load, very high voltage may be induced in the first triode Q1 colelctor electrode, this
Individual voltage may be up to more than 1000 volts, and this can make the first triode Q1 punch through damage, and the 5th resistance R5 makes circuit occur without nothing
The situation of load, such first triode Q1 would not damage because of the high electrical breakdown of colelctor electrode.
It is noted that in the present embodiment, the first triode Q1 and the second triode Q2 are NPN type triode.When
So, under the certain situation of the present embodiment, the first triode Q1 and the second triode Q2 can also be PNP type triode, but
At this moment circuit structure also can accordingly change.
In the present embodiment, the power module 7 also includes the 6th electric capacity C6, the 6th electric capacity C6 one end and the first triode Q1
Colelctor electrode connection, the 6th electric capacity C6 other end is connected with transformer T the first primary coil L1 other end, the 6th electric capacity
C6 capacitance is 50PF.6th electric capacity C6 is coupled capacitor, for preventing that the first of the first triode Q1 and transformer T is primary
Interference between coil L1, further to strengthen the safety and reliability of circuit.
In the present embodiment, the power module 7 also includes the 6th resistance R6, and the 6th resistance R6 one end is with the 3rd electric capacity C3's
One end connects, the 6th resistance R6 other end with the first voltage-stabiliser tube D1 anode be connected, the 6th resistance R6 resistance is 100
Ω.6th resistance R6 is current-limiting resistance, for carrying out excessively stream guarantor to the branch road between the second triode Q2 and the first voltage-stabiliser tube D1
Shield, further to strengthen the safety and reliability of circuit.
In a word, in the present embodiment, because the temperature data of detection is sent to shifting by single-chip microcomputer 4 by wireless communication module 6
Dynamic terminal, such administrative staff can just understand scene temperature situation whenever and wherever possible.The component that power module 7 uses is less, electricity
Line structure is relatively simple, can save hardware cost, therefore cost is relatively low.Current-limiting resistance and coupling electricity are provided with power module 7
Hold, therefore the safety and reliability of circuit is higher.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (5)
1. it is a kind of with temperature storage temperature polling instrument, it is characterised in that including channel selection circuit, signal conditioning circuit,
A/D converter, single-chip microcomputer, memory, wireless communication module, power module, audible-visual annunciator, display and multiple TEMPs
Device, the connection corresponding with an input of the channel selection circuit of each temperature sensor, the channel selecting electricity
The output end on road is connected with the input of the signal conditioning circuit, and the output end of the signal conditioning circuit turns with the A/D
The input end of analog signal connection of parallel operation, the input of the digital signal output end of the A/D converter and the single-chip microcomputer connect
Connect, the selection signal control terminal of the single-chip microcomputer is connected with the selection signal control terminal of the channel selection circuit, the storage
The data input output end of device is connected with the data input output end of the single-chip microcomputer, the temperature data for storing detection, institute
State single-chip microcomputer and the temperature data of detection be sent to mobile terminal by the wireless communication module, the power module with it is described
Single-chip microcomputer is connected, for powering, and the input of the audible-visual annunciator is connected with the alarm command output end of the single-chip microcomputer, institute
The input of display is stated to be connected with the idsplay order output end of the single-chip microcomputer；
The power module includes the first triode, the second triode, transformer, the first voltage-stabiliser tube, the second diode, the three or two
Pole pipe, light emitting diode, fuse, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first electric capacity,
Second electric capacity and the 3rd electric capacity, one end of one end of first electric capacity, one end of second resistance and the 4th resistance are all connected with
One end of 220V alternating currents, the fuse one end connection 220V alternating currents the other end, the other end of the fuse with
The other end connection of first electric capacity, the other end of the second resistance base stage and the 5th with first triode respectively
One end connection of electric capacity, the emitter stage of first triode respectively with one end of the first resistor and one end of 3rd resistor
Connection, the other end of the 3rd resistor is connected with the anode of first voltage-stabiliser tube and one end of the 3rd electric capacity respectively, described
The other end of 3rd electric capacity is connected with the base stage of second triode, the other end of the first resistor and the second triode
Emitter stage is connected with the other end of the fuse, the other end of the 5th electric capacity current collection with second triode respectively
Pole connects with one end of the second electric capacity；
The other end of 4th resistance is connected with one end of the first primary coil of the transformer, and the first of the transformer
The other end of primary coil is connected with the colelctor electrode of first triode, the other end of second electric capacity respectively with the change
One end of second primary coil of depressor connects with the negative electrode of the second diode, anode and the fusing of second diode
The other end connection of device, the negative electrode of first voltage-stabiliser tube are connected with the other end of the second primary coil of the transformer, institute
State one end of the secondary coil of transformer one end with the 4th electric capacity, one end of the 5th resistance, the anode of light emitting diode respectively
Connected with voltage output end, the negative electrode of the other end of the 4th electric capacity, the other end of the 5th resistance and light emitting diode with
The anode connection of 3rd diode, the negative electrode of the other end of the secondary coil of the transformer and the 3rd diode connect
Connect.
2. the temperature polling instrument according to claim 1 with temperature storage, it is characterised in that the power module also wraps
Include the 6th electric capacity, one end of the 6th electric capacity is connected with the colelctor electrode of first triode, the 6th electric capacity it is another
End is connected with the other end of the first primary coil of the transformer, and the capacitance of the 3rd electric capacity is 20PF, and the described 5th
The capacitance of electric capacity is 40PF, and the resistance of the 4th resistance is 4.7K Ω, and the capacitance of the 6th electric capacity is 50PF.
3. the temperature polling instrument according to claim 2 with temperature storage, it is characterised in that the power module also wraps
Include the 6th resistance, one end of the 6th resistance is connected with one end of the 3rd electric capacity, the other end of the 6th resistance with
The anode connection of first voltage-stabiliser tube, the resistance of the 6th resistance is 100 Ω.
4. the temperature polling instrument with temperature storage according to claims 1 to 3 any one, it is characterised in that described
First triode and the second triode are NPN type triode.
5. the temperature polling instrument with temperature storage according to claims 1 to 3 any one, it is characterised in that described
Wireless communication module is bluetooth module, WIFI module, GPRS module, Zigbee module, CDMA module or WCDMA modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720656907.2U CN206945148U (en) | 2017-06-07 | 2017-06-07 | Temperature polling instrument with temperature storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720656907.2U CN206945148U (en) | 2017-06-07 | 2017-06-07 | Temperature polling instrument with temperature storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945148U true CN206945148U (en) | 2018-01-30 |
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ID=61362866
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720656907.2U Expired - Fee Related CN206945148U (en) | 2017-06-07 | 2017-06-07 | Temperature polling instrument with temperature storage |
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| Country | Link |
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| CN (1) | CN206945148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864729A (en) * | 2019-11-11 | 2020-03-06 | 广州华清环境监测有限公司 | Soil detection system |
-
2017
- 2017-06-07 CN CN201720656907.2U patent/CN206945148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864729A (en) * | 2019-11-11 | 2020-03-06 | 广州华清环境监测有限公司 | Soil detection system |
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