CN206074146U - MW temperature monitoring system - Google Patents
MW temperature monitoring system Download PDFInfo
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- CN206074146U CN206074146U CN201620956611.8U CN201620956611U CN206074146U CN 206074146 U CN206074146 U CN 206074146U CN 201620956611 U CN201620956611 U CN 201620956611U CN 206074146 U CN206074146 U CN 206074146U
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Abstract
The utility model discloses a kind of MW temperature monitoring system, problem for cannot directly reflect temperature dangerous situation, there is provided technical scheme below, also include temperature-detecting device, ten step voltage comparator circuits, display device, temperature-detecting device detects the temperature in warehouse in real time and exports temperature detection signal corresponding with actual temperature, ten step voltage comparator circuits are compared with threshold value after receiving temperature detection signal, and export corresponding control signal, display device is coupled to ten step voltage comparator circuits to receive control signal, and the light of different colours is lighted in different temperatures to point out the real time temperature situation in people warehouse in response to control signal, have the advantages that to directly display temperature dangerous situation, bring facility.
Description
Technical field
This utility model is related to warehouse monitoring field, more specifically, it relates to a kind of MW temperature monitoring system.
Background technology
Storage is an important step in logistics, and substantial amounts of goods will be temporarily stored in warehouse, the use in warehouse, can be with
The shortage that customer purchases goods is better protected from, is shortened the time that customer purchases goods in advance, and is adjusted the market supply and demand, so as to for businessman
Or manufacturing enterprise reduces the risk of price fluctuation, it is to avoid loss in short supply, to make fast reaction to the market demand, therefore each
Large and medium-sized enterprise or third-party logistics company can all have large number of warehouse.
During warehouse storage goods, the temperature control in warehouse is most important, and not only some goods need suitable temperature
Can storage（Such as food）, or even some articles easily occur dangerous situation at high temperature（Such as inflammable explosive article）, so to warehouse
The monitoring of interior temperature is always the key point of warehouse storage.
At present, the Chinese patent of Application No. CN201220756817.8 discloses a kind of temperature storehouse temperature monitoring system, it
Including temperature sensor, single-chip microcomputer, communication interface, numeral method device, the system is detected in warehouse by temperature sensor
Temperature is simultaneously sent to single-chip microcomputer by communication interface, and single-chip microcomputer passes through numeral method device to temperature after processing to temperature parameter
Degree is shown.
Although the system detection temperature can be detected and be shown, the display temperature that numeral method device can only be definite
The numerical value of degree, it is impossible to the dangerous situation of temperature is timely shown according to the practical situation of temperature, user cannot directly obtain reality
The harm of temperature particularly belongs to any grade, therefore has improved space.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of MW temperature monitoring system,
Have the advantages that to directly display temperature dangerous situation.
For achieving the above object, this utility model provides following technical scheme：
A kind of MW temperature monitoring system, also includes
Temperature-detecting device, for detecting the temperature in warehouse with output temperature detection signal；
Ten step voltage comparator circuits, with threshold value, are coupled to temperature-detecting device to receive temperature detection signal, and compare
Compared with the value of temperature detection signal and the size of threshold value with output control signal；
Display device, is coupled to ten step voltage comparator circuits to receive control signal, and luminous in response to control signal；
When storehouse storehouse temperature changes, display device lights the light of different colours to point out the temperature conditionss in warehouse.
Using above-mentioned technical proposal, temperature-detecting device detects the temperature in warehouse in real time and exports and actual temperature
Corresponding temperature detection signal, ten step voltage comparator circuits are compared with threshold value after receiving temperature detection signal, and export phase
The control signal answered, display device are coupled to ten step voltage comparator circuits to receive control signal, and in response to control signal
The light of different colours is lighted in different temperatures to point out the real time temperature situation in people warehouse, with can directly display
The advantage of temperature dangerous situation, it is observed that the light of different colours can directly judge the criticality of dangerous situation, it is convenient and
More preferably, additionally, ten grades of classification is more enriched, people can select some classifications therein to be used to safety prompt function effect,
The selection for giving people provides facility.
Preferably, the ten step voltages comparator circuit is coupled with and for control signal to be converted into what wireless signal transmission was gone out
ZIGBEE wireless transmitter modules, the display device are coupled with for receiving wireless signal and wireless signal being converted into control letter
Number ZIGBEE wireless receiving modules.
Using above-mentioned technical proposal, temperature is examined by ZIGBEE wireless transmitter modules and ZIGBEE wireless receiving modules
The conveying of survey situation carries out remote monitoring so that the temperature conditionss that people need not be monitored in warehouse by arriving in warehouse in person, more
Plus save trouble and facility.
Preferably, the ten step voltages comparator circuit is coupled with the circuit of warning reported to the police in response to control signal.
Using above-mentioned technical proposal, when the temperature in warehouse is more than threshold value, goods is easily damaged, or even warehouse is because high
There is dangerous situation in temperature, and is coupled with circuit of warning, when temperature is too high to user to warn, the need for pointing out user temperature too high
To take measures in time, so improve the safety of warehouse storage.
Preferably, the circuit of warning include being coupled to ten step voltage comparator circuits with receive control signal and in response to
The on-off circuit of control signal break-make and it is coupled to on-off circuit and the break-make in response to on-off circuit is warned with sounding
Audible alarm circuit.
Using above-mentioned technical proposal, control audible alarm circuit sounding to be warned by second switch circuit, work as sound
When sound warning circuit is warned, the mode of audible alarm, user deliberately need not go to listen to i.e. can be known, then carry out corresponding
Process, bring conveniently.
Preferably, the temperature-detecting device includes temperature sensing circuit for detecting storehouse storehouse temperature and to temperature
The mu balanced circuit of detection circuit with stable running voltage.
Using above-mentioned technical proposal, temperature sensing circuit is the difference of sound size to be shared by temperature-sensing element (device)
The difference of voltage carrys out output temperature detection signal, so supply voltage affects huge to the output signal of temperature sensing circuit, electricity
The voltage instability in source can then cause the voltage detection signal for exporting clutter occur, affect the accurate of detection, and mu balanced circuit can be by
Temperature sensing circuit is supplied to after the voltage stabilization of power supply, it is to avoid supply voltage shakiness causes the impact to accuracy of detection, is increased
The strong accuracy of detection.
Preferably, the temperature sensing circuit is coupled with the signal amplification circuit for being amplified temperature detection signal.
Using above-mentioned technical proposal, temperature detection signal is amplified by signal amplification circuit, on the one hand with power
Increase, temperature detection signal can drive more powerful load, enhance the multiformity of subsequent conditioning circuit selection, bring
It is convenient；On the other hand, the amplified amplitude increase of the less temperature detection signal of amplitude in the past, can strengthen to temperature detection electricity
The precision of road temperature detection, makes the detection to slight temperature more accurate.
Preferably, the ten step voltages comparator circuit is coupled with the reference section for given threshold.
Using above-mentioned technical proposal, by the size of reference section given threshold value, compare such that it is able to change temperature level
Standard, and then the display of display part and the corresponding relation of actual temperature can be set according to the actual needs, be brought
It is convenient.
Preferably, the signal amplification circuit is coupled with for adjusting the adjustment portion of temperature detection signal output amplitude.
Using above-mentioned technical proposal, when threshold value changes, if the amplification of temperature detection signal determines, then temperature
The output amplitude of detection signal also determines, then when threshold value is compared with temperature detection signal, it may appear that the change of temperature detection signal
Can not completely fall in threshold range, cause distortion when comparing, it is impossible to play the effect for comparing and monitoring, and be coupled with
After adjustment portion, when threshold value changes, the amplitude that temperature detection signal is exported can be adjusted to fit by adjustment portion
Answer the change of threshold value, it is ensured that what is detected and compare is accurate.
In sum, this utility model has the advantages that：
1. display device lights the light of different colours to point out the real time temperature feelings in people warehouse in different temperatures
Condition, has the advantages that to directly display temperature dangerous situation；
2. passing through ZIGBEE wireless transmitter modules and ZIGBEE wireless receiving modules is carried out the conveying of temperature detection situation far
Range monitoring so that the temperature conditionss that people need not be monitored in warehouse by arriving in warehouse in person, more saves trouble and facility；
3. warn circuit when temperature is too high to user to warn, point out the too high needs of user temperature to take in time
Measure, so improve the safety of warehouse storage.
Description of the drawings
Fig. 1 is the circuit theory diagrams of temperature-detecting device and ZIGBEE wireless transmitter modules in embodiment；
Fig. 2 is the circuit of ZIGBEE wireless transmitter modules, display device and ten step voltage comparator circuits in embodiment
Schematic diagram.
In figure：1st, temperature-detecting device；11st, temperature sensing circuit；12nd, mu balanced circuit；13rd, signal amplification circuit；14th, adjust
Section portion；2nd, ten step voltage comparator circuit；21st, filter circuit；22nd, reference section；3rd, display device；41st, ZIGBEE wireless transmit
Module；42nd, ZIGBEE wireless receiving modules；5th, warn circuit；51st, on-off circuit；52nd, audible alarm circuit.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment, this utility model is described in detail.
A kind of MW temperature monitoring system, with reference to Fig. 1, including temperature-detecting device 1, ten step voltage comparator circuits 2,
ZIGBEE wireless transmitter modules 41, ZIGBEE wireless receiving modules 42 and display device 3, temperature-detecting device 1 are used to detect
Temperature in warehouse has threshold value, ten step voltage comparator circuits with output temperature detection signal, ten step voltage comparator circuits 2
2 are coupled to temperature-detecting device 1 to receive the value of temperature detection signal C.T detection signal and the size of threshold value simultaneously
With output control signal, control signal is converted into wireless signal transmission and is gone out by ZIGBEE wireless transmitter modules 41, ZIGBEE without
Line receiver module 42 receives wireless signal and wireless signal is converted into control signal, and it is wireless that display device 3 is coupled to ZIGBEE
Receiver module 42 is receiving control signal luminous in response to control signal；When storehouse storehouse temperature changes, display device 3 is lighted
The light of different colours is pointing out the temperature conditionss in warehouse.
With reference to Fig. 1, temperature-detecting device 1 is included for detecting the temperature sensing circuit 11 of storehouse storehouse temperature, giving temperature inspection
Slowdown monitoring circuit 11 provides the mu balanced circuit 12 of stable operating voltage, the signal amplification circuit 13 for being amplified temperature detection signal,
Specific circuit is connected as：
The physical circuit of mu balanced circuit 12 includes chip IC -1, electric capacity C2, electric capacity C3, and wherein chip IC -1 is LM7809,
1 pin of LM7809 is connected to the power supply of+12V, the 2 pins ground connection of LM7809, while after 2 pin series capacitances C2 of LM7809
Power supply is connected to, series capacitance C3 between 2 pins and 3 pins of LM7809,3 pins of LM7809 are supplied to subsequent conditioning circuit stable
+ 9V power supplys, in the present embodiment, power supply described below is without refering in particular to the outer+9V power supplys for being all the offer of mu balanced circuit 12；
Temperature sensing circuit 11 includes critesistor RT, resistance R1, resistance R2 and electric capacity C4, wherein critesistor RT's
Power supply is connected to after series resistance R1 of one end, while the end is sequentially connected in series output temperature detection signal after electric capacity C4 and resistance R2；
Signal amplification circuit 13 includes chip IC -2, resistance R3, resistance R4, resistance R5, and wherein chip IC -2 is CA3130,
Power supply is connected to after in-phase input end series resistance R3 of CA3130, is grounded after in-phase input end series resistance R4 of CA3130,
The reverse input end of CA3130 is connected to resistance R2 to receive temperature detection signal, while the reverse input end series electrical of CA3130
The outfan of CA3130 is connected to after resistance R5；
Adjustment portion 14, the physical circuit bag of adjustment portion 14 are connected with after 13 positive series connection electrolysis electric capacity C5 of signal amplification circuit
Potentiometer VR is included, a fixing end of potentiometer VR is connected to the negative electrode of electrochemical capacitor C5, and another fixing end of potentiometer VR is grounded,
ZIGBEE wireless transmitter modules 41 are connected to the adjustable end of potentiometer VR.
With reference to Fig. 2, ten step voltage comparator circuits 2 include integrated chip IC-3, electrochemical capacitor C7, resistance R9, resistance
R10, wherein chip IC -3 are LM3914, and there is LM3941 1-18 to amount to 18 pins, and 5 pins of LM3941 are connected to diode
To receive temperature detection signal, 2, the 4 pins ground connection of LM3941,3,9 pins of LM3941 are connected to power supply to the negative electrode of D1, while
3 pins of LM3941 are connected to the anode of electrochemical capacitor C7, and the negative electrode of electrochemical capacitor C7 is connected with 4 pins of LM3941,
It is grounded after 6,7 pin series resistances R10 of LM3941, after 8 pin series resistances R9 of LM3941, is connected to 7 pipes of LM3941
Foot, resistance R9, resistance R10 constitute reference section 2221.
With reference to Fig. 2, filter circuit 21 includes diode D1, diode D2, electrochemical capacitor C6, wherein resistance R6, ZIGBEEE
Wireless receiving module is connected to the negative electrode of diode D2, the plus earth of diode D2, while ZIGBEEE wireless receiving modules connect
It is connected to the anode of diode D1, the negative electrode of diode D1 is connected to the anode of electrochemical capacitor C6, the minus earth of electrochemical capacitor C6,
It is grounded after negative electrode series resistance R6 of diode D1.
With reference to Fig. 2, ten step voltage comparator circuits 2 are coupled with carries out luminous display device 3 in response to control signal, this
In embodiment, display device 3 includes ten LEDs, and ten LEDs can be arranged as required to into not
Same color（The glass of different colours can also be covered）, ten LEDs are connected to the 10 to 18 of LM3941
Pin and 1 pin, by taking 1 pin of LM3941 as an example, 1 pin of LM3941 is connected to the negative electrode of LED, sends out
The anode of optical diode LED is connected to power supply, and each LED is all lighted in response to control signal.
With reference to Fig. 2, ten step voltage comparator circuits 2 are coupled with the circuit 5 of warning reported to the police in response to control signal, show
Alert circuit 5 includes being coupled to ten step voltage comparator circuits 2 to receive control signal the switch in response to control signal break-make
Circuit 51 and it is coupled to the audible alarm electricity warned with sounding by on-off circuit 51 break-make in response to on-off circuit 51
Road 52,5 specific circuit of circuit of warning are connected as：
On-off circuit 51 includes the audion VT1 of NPN type, resistance R7, wherein resistance R8, the base stage of audion VT1 successively
Power supply is connected to after series resistance R8, resistance R7, resistance R7 is connected to 10 pins of LM3941 to receive with resistance R8 connecting places
Control signal, the colelctor electrode of audion VT1 are connected to power supply；
Audible alarm circuit 52 includes electric bell SP and diode D3, and one end of wherein electric bell SP is connected to audion VT1
Emitter stage and other end ground connection, the negative electrode of diode D3 is connected to emitter stage and the plus earth of audion VT1.
The operation principle and the course of work of the present embodiment：
+ 9V the power supplys that LM7809 will be supplied to subsequent conditioning circuit stable after former electricity original voltage stabilizing, resistance R1 and critesistor RT
Series connection partial pressure, but due to the temperature-sensing property of critesistor, temperature is higher, and the voltage at critesistor RT two ends is less, Jin Erjing
Temperature detection signal amplification and the regulation of potentiometer VR are sent, Zhi Houzai by CA3130 by ZIGBEE wireless transmitter modules 41
Received by ZIGBEE wireless receiving modules 42, received by LM3914 after then filter circuit 21 is filtered, 7,8 pipes of LM3914
Resistance R9, the resistance R10 connect by foot is supplied to LM3914 threshold values by partial pressure relation, and for example this threshold value is 5V, then LM3914 is automatic
Dividing has 0-0.5V, 0.5V -1V, ten grades of 1V-1.5 ... ..., 4.5V-5V, if temperature detection signal is in 0-0.5V,
The LED of 1 pin connection is lighted, and is carried such that it is able to the light of different colours is lighted according to different temperature
Let others have a look at temperature conditionss in warehouse.
Additionally, when the temperature in warehouse it is high to a certain extent when, the circuit 5 of warning of the 10 pins connection of LM43914 will be logical
Cross sounding to remind people warehouse interior temperature to spend height, it is most likely that dangerous situation occur.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of MW temperature monitoring system, is characterized in that：Also include
Temperature-detecting device (1), for detecting the temperature in warehouse with output temperature detection signal；
Ten step voltage comparator circuits (2), with threshold value, are coupled to temperature-detecting device (1) to receive temperature detection signal, and
The value of C.T detection signal is with the size of threshold value with output control signal；
Display device (3), is coupled to ten step voltage comparator circuits (2) to receive control signal, and sends out in response to control signal
Light；
When storehouse storehouse temperature changes, display device (3) lights the light of different colours to point out the temperature conditionss in warehouse.
2. MW temperature monitoring system according to claim 1, is characterized in that：The ten step voltages comparator circuit (2)
It is coupled with and control signal is converted into into the ZIGBEE wireless transmitter modules (41) that wireless signal transmission is gone out, the display device
(3) it is coupled with for receiving wireless signal and wireless signal being converted into the ZIGBEE wireless receiving modules (42) of control signal.
3. MW temperature monitoring system according to claim 1, is characterized in that：The ten step voltages comparator circuit (2)
It is coupled with the circuit of warning (5) reported to the police in response to control signal.
4. MW temperature monitoring system according to claim 3, is characterized in that：The circuit of warning (5) is including being coupled to
Ten step voltage comparator circuits (2) are receiving control signal and on-off circuit (51) in response to control signal break-make and coupling
In on-off circuit (51) and in response to the audible alarm circuit (52) warned with sounding of break-make of on-off circuit (51).
5. MW temperature monitoring system according to claim 1, is characterized in that：The temperature-detecting device (1) includes using
The steady of stable operating voltage is provided in the temperature sensing circuit (11) of detection storehouse storehouse temperature and to temperature sensing circuit (11)
Volt circuit (12).
6. MW temperature monitoring system according to claim 5, is characterized in that：The temperature sensing circuit (11) is coupled with
The signal amplification circuit (13) that temperature detection signal is amplified.
7. MW temperature monitoring system according to claim 1, is characterized in that：The ten step voltages comparator circuit (2)
It is coupled with the reference section (22) for given threshold.
8. MW temperature monitoring system according to claim 6, is characterized in that：The signal amplification circuit (13) is coupled with
For adjusting the adjustment portion (14) of temperature detection signal output amplitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956611.8U CN206074146U (en) | 2016-08-26 | 2016-08-26 | MW temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956611.8U CN206074146U (en) | 2016-08-26 | 2016-08-26 | MW temperature monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN206074146U true CN206074146U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620956611.8U Active CN206074146U (en) | 2016-08-26 | 2016-08-26 | MW temperature monitoring system |
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| Country | Link |
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| CN (1) | CN206074146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741656A (en) * | 2019-03-14 | 2019-05-10 | 江苏艾什顿科技有限公司 | A kind of Internet of Things comprehensive practical traning outdoor scene sand table system |
-
2016
- 2016-08-26 CN CN201620956611.8U patent/CN206074146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741656A (en) * | 2019-03-14 | 2019-05-10 | 江苏艾什顿科技有限公司 | A kind of Internet of Things comprehensive practical traning outdoor scene sand table system |
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