CN207895285U - A kind of antifreeze monitoring system of fire protection pipeline - Google Patents
A kind of antifreeze monitoring system of fire protection pipeline Download PDFInfo
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- CN207895285U CN207895285U CN201820264972.5U CN201820264972U CN207895285U CN 207895285 U CN207895285 U CN 207895285U CN 201820264972 U CN201820264972 U CN 201820264972U CN 207895285 U CN207895285 U CN 207895285U
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- fire protection
- protection pipeline
- antifreeze
- conductivity
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Abstract
A kind of antifreeze monitoring system of fire protection pipeline, including the antifreeze monitoring terminal of fire protection pipeline, gateway, Cloud Server, monitor supervision platform, the antifreeze monitoring terminal of fire protection pipeline is mounted on fire protection pipeline and monitors point, its MCU microcontroller is according to the preset sampling period, timing wake-up sensing measurement unit, acquisition fire protection pipeline liquid electric conductivity and temperature, communication module are interacted based on LoRaWAN agreements with gateway data；Gateway connects Cloud Server by 3G/4G or cable network form, monitor supervision platform remotely accesses Cloud Server, acquired original data are filtered, and draw conductivity and temperature oscillogram, conductivity and temperature pre-warning threshold value and alarming value are set, when monitoring point monitoring data are more than early warning threshold value, monitor supervision platform issues warning signal.The utility model freezes to give warning in advance and automatically process, reduce the freezing risk of fire protection pipeline, reduce the wasting of resources by monitoring fire protection pipeline liquid electric conductivity and temperature to potential fire protection pipeline.
Description
Technical field
The utility model is a kind of antifreeze monitoring system of fire protection pipeline, more particularly to a kind of based on monitoring fire protection pipeline liquid
The antifreeze monitoring system of conductivity, belongs to remote control technology field.
Background technology
Fire protection pipeline is mainly used for connecting fire-fighting equipment, equipment, conveys fire-fighting fire extinguishing water, is the important anti-of urban safety
Line.Winter is influenced by extreme low temperature weather, and repeatly by freezing, being freezing, the fire protection pipeline to have freezed can not come into operation fire protection pipeline in time,
Great threat is caused to the fire safety in city.
China's urban fire control pipeline pipe network circuit has a very wide distribution, less efficient based on the mode of artificial means investigation, no
Demand of speedily carrying out rescue work can be met.Existing fire protection pipeline bursting by freezing monitoring is generally based on temperature sensor or pressure sensor, acoustic detection
It goes to investigate, is a kind of subsequent judgement, when repair personnel reaches scene, fire protection pipeline has occurred and that fracture, a large amount of fire demand waters
Underground has been penetrated into, water resource waste is not only caused, it is also possible to cause fire-fighting and rescue not use water, keep fire fighting work suitable
Profit carries out.
Generally tap water, tap water all have electric conductivity under liquid, solid-liquid mixing, solid-state in China's fire protection pipeline
Matter.Under liquid condition, conductivity reduces with temperature and is reduced for it；Under solid-liquid admixture, conductivity is reduced with temperature and is risen
It is high；Under solid states, conductivity can reduce with temperature and be reduced.It therefore, can be by monitoring liquid electric conductivity and temperature phase
In conjunction with mode realize the antifreeze monitoring of fire protection pipeline to judge fire protection pipeline liquid status.
Invention content
The purpose of this utility model be for the above-mentioned prior art in, fire protection pipeline freezes monitoring lag, artificial investigation effect
The low defect of rate provides a kind of antifreeze monitoring system of fire protection pipeline, and remote low-power-consumptiohigh-sensitivity monitors liquid electric conductivity and temperature, realizes
Early warning in advance to fire-fighting frost crack pipe reduces resources loss, ensures fire demand water.
To achieve the goals above, the technical scheme adopted by the utility model is that：A kind of antifreeze monitoring system of fire protection pipeline,
Including the antifreeze monitoring terminal of fire protection pipeline, gateway, Cloud Server, monitor supervision platform.
The antifreeze monitoring terminal of fire protection pipeline include MCU microcontrollers, sensing measurement unit, communication module, antenna, after
Electric appliance output module, liquid crystal display, encoder button, RS485 conversion modules, timing reset watchdog module, power supply module.
The MCU microcontrollers, internal storage space, according to the preset sampling period, timing wake-up sensing measurement unit,
And logic judgment is carried out to the data of sensing measurement unit acquisition, issue wake instruction communication module, relay output module work
Make.
The sensing measurement unit, including conductivity acquisition module and temperature collecting module connect with the MCU microprocessors
It connects, to acquire fire protection pipeline liquid electric conductivity and temperature.
The conductivity acquisition module includes that circuit, current collection circuit, electrode occur for driving voltage.
Further, the accurate square-wave voltage of circuit generation, the driving voltage U as electrode occur for the driving voltage.
Further, the current acquisition electric current can acquire the conductivity measurement loop current value I under the driving voltage.
Further, the electrode uses 316 stainless steels, using bipolar electrode form, electrode size A and two electrode spacing L
For particular value.
Further, according to formula：R=U/I, R=ρ L/A, σ=1/ ρ, wherein R are resistance, and resistivity ρ, L is between electrode
Away from A is electrode size, and conductivity σ derives conductivityσ=IL/UA, and fire protection pipeline liquid electric conductivity value is acquired with this.
The temperature collecting module is to acquire fire protection pipeline fluid temperature, the auxiliary reference index as antifreeze monitoring.
The communication module is connect with the MCU microprocessors by SPI interface, carries out data interaction, and pass through external day
Line realizes data transmit-receive, and LoRaWAN protocol communications are based on the gateway.
The relay output module receives the instruction of MCU microcontrollers, is connect with the MCU microcontrollers, for driving
The auxiliary heater circuit of dynamic external electrical, warning circuit.
The liquid crystal display is connect with the MCU microcontrollers, to show conductivity, temperature, current value and pipeline
Liquid condition.
The encoder button is connect with the MCU microcontrollers, icing conductivity early warning value, icing conductance is arranged
Rate alarming value, low temperature early warning value, low-temperature warning value, sampling period.
The RS485 conversion modules are connect with the MCU microcontrollers, are reserved communication interfaces, to local parameter
Setting, system upgrade.
The timing reset watchdog module is connect with the MCU microcontrollers, can be timed to MCU microcontrollers multiple
Position, prevents from influencing conductivity, temperature monitoring task because MCU microcontrollers crash.
The power supply module, including externally fed and rechargeable lithium battery, to give the antifreeze monitoring of the fire protection pipeline eventually
End power supply.
Further, lithium battery power supply is automatically switched to when external power supply interrupts, and power-off signal is transmitted to MCU micro-controls
Device processed.
The gateway receives the data packet sent out in the antifreeze monitoring terminal of the fire protection pipeline, and data are led to by 3G/4G
Believe module or cable network form, connects Cloud Server.
The data that the Cloud Server sends gateway store and process.
The monitor supervision platform is based on Internet and remotely accesses Cloud Server, is filtered to acquired original data, draws
Conductivity and temperature oscillogram, the conductivity and temperature setting early warning threshold value range to monitoring point and alarming value range, work as prison
When measuring point monitoring data reach early warning threshold value range, platform issues warning signal.
Further, the monitor supervision platform can check the power blackout situation of the antifreeze monitoring terminal of each point fire protection pipeline, ensure
Monitoring effect.
Further, the monitor supervision platform can be as needed, issues interim acquisition instructions, and it is antifreeze to wake up the fire protection pipeline
Monitor terminal works.
It compared with prior art, can the utility model has the beneficial effects that providing a kind of antifreeze monitoring system of fire protection pipeline
Remote low-power-consumptiohigh-sensitivity acquires liquid electric conductivity and temperature in fire protection pipeline, by liquid liquid in fire protection pipeline, solid-liquid mixing,
The long-range monitoring of three kinds of forms of solid-state, freezes to give warning in advance and automatically process to potential fire protection pipeline, reduces fire protection pipeline and freezes
Bad risk reduces the wasting of resources, provides safeguard for the just common water of fire control.
Description of the drawings
Fig. 1 is a kind of antifreeze monitoring system structure diagram of fire protection pipeline.
Fig. 2 is the antifreeze monitoring terminal structure schematic diagram of fire protection pipeline.
Fig. 3 is conductivity acquisition module structural schematic diagram in the antifreeze monitoring terminal of fire protection pipeline.
Reference sign：The antifreeze monitoring terminal 1 of fire protection pipeline, gateway 2, Cloud Server 3, monitor supervision platform 4；Conductivity is adopted
Collect in module：Driving voltage amplification module 101, current collection circuit 102, electrode 103, conductance cell 1031.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as to the utility model
Restriction.
As shown in Figure 1, a kind of antifreeze monitoring system of fire protection pipeline, including the antifreeze monitoring terminal 1 of fire protection pipeline, gateway 2, cloud
Server 3, monitor supervision platform 4.
The antifreeze monitoring terminal 1 of fire protection pipeline is mounted on fire_fighting pipe network monitoring site, to timing acquiring fire protection pipeline
Inside originally water conductivity and temperature, it is to be understood that the antifreeze monitoring terminal of the fire protection pipeline 1 is according to monitoring point bit distribution feelings
Condition, quantity N are greater than 1 integer.
As shown in Fig. 2, the antifreeze monitoring terminal 1 of fire protection pipeline, including MCU microcontrollers, sensing measurement unit, communication
Module, antenna, relay output module, liquid crystal display, encoder button, RS485 conversion modules, timing reset house dog mould
Block, power supply module.
The power supply module, including externally fed and rechargeable lithium battery power supply supplementary power, to give the extinguishing pipe
The antifreeze monitoring terminal power supply in road.
Further, lithium battery power supply is automatically switched to when external power supply interrupts, and power-off signal is transmitted to MCU micro-controls
Device processed.
The timing reset watchdog module is connect with the MCU microcontrollers, can be timed to MCU microcontrollers multiple
Position, prevents from influencing conductivity, temperature monitoring task because MCU microcontrollers crash.
The encoder button is connect with the MCU microcontrollers, icing conductivity early warning value, icing conductance is arranged
Rate alarming value, low temperature early warning value, low-temperature warning value, sampling period.
Further, the early warning value of set temperature is to continue h1 hours temperature to be less than 0 DEG C, and conductivity early warning value is σ 1, when
When temperature and conductivity value are more than early warning value, the MCU microcontrollers logic judgment issues warning signal.
Further, the alarming value of set temperature is to continue h2 hours temperature to be less than 0 DEG C, and conductivity alarming value is σ 2, when
When temperature and conductivity value are more than alarming value, the MCU microcontrollers logic judgment sends out alarm signal.
The MCU microcontrollers, internal storage space, according to the preset sampling period, timing wake-up sensing measurement unit,
And logic judgment is carried out to the data of sensing measurement unit acquisition, issue wake instruction communication module, relay output module work
Make.
The sensing measurement unit, including conductivity acquisition module and temperature collecting module connect with the MCU microprocessors
It connects, the acquisition instructions of MCU microprocessors connection is received, to acquire fire protection pipeline liquid electric conductivity and temperature.
The conductivity acquisition module includes that circuit, current collection circuit, electrode occur for driving voltage.
As shown in figure 3, the MCU microprocessors export analog voltage signal by digital analog converter DAC, starts wake-up and refer to
It enables.
Further, the analog voltage signal passes through voltage amplification module, and excitation square wave generation module generates accurate
Square-wave voltage U, as the driving voltage of conductance cell, the liquid of the electrode and surrounding them constitutes conductance cell.
Preferably, the electrode uses 316 stainless steels, and using bipolar electrode form, electrode size A and two electrode spacing L are
Particular value.
Further, to conductance cell apply driving voltage generate electric current I, current signal by current-voltage conversion module,
Differential amplification module, sampling and keep module, decompression filter module are converted into voltage signal, pass through the analog-to-digital conversion device of the MCU
ADC is acquired.
Further, according to formula：R=U/I, R=ρ L/A, σ=1/ ρ, wherein R are resistance, and resistivity ρ, L is between electrode
Away from A is electrode size, and conductivity σ derives conductivityσ=IL/UA, and fire protection pipeline liquid electric conductivity value is acquired with this.
The temperature collecting module is to acquire fire protection pipeline fluid temperature, the auxiliary reference index as antifreeze monitoring.
The relay output module is connect with the MCU microcontrollers, receives MCU micro-controller instructions, and driving is external
The auxiliary heater circuit of electricity, warning circuit work.
The liquid crystal display is connect with the MCU microcontrollers, to show conductivity, temperature, current value and pipeline
Liquid condition.
The RS485 conversion modules are connect with the MCU microcontrollers, are reserved communication interfaces, to local parameter
Setting, system upgrade.
The MCU microcontrollers acquire demand temporarily by the gathered data timing of sensing measurement unit or according to user, lead to
It crosses SPI interface and carries out data interaction with the communication module, and data transmit-receive is realized by external antenna.
Preferably, the communication module uses LoRa radio-frequency modules.
The gateway 2 is communicated based on the antifreeze monitoring terminal of LoRaWAN agreements and the fire protection pipeline of each point 1, receives fire-fighting
Freezing prevention tubing monitors the data packet that terminal 1 is sent, and Cloud Server is connected by 3G/4G or cable network form, realizes that data are received
Hair.
The data that the Cloud Server 3 sends gateway 2 store and process.
The monitor supervision platform 4 is based on Internet and remotely accesses Cloud Server 3, is filtered, paints to acquired original data
Conductivity and temperature oscillogram processed, the conductivity and temperature setting early warning threshold value to monitoring point and alarming value, when monitoring point is supervised
When measured data is more than early warning threshold value, platform issues warning signal.
Further, the monitor supervision platform can check the power blackout situation of the antifreeze monitoring terminal of each point fire protection pipeline, ensure
Monitoring effect.
Further, the monitor supervision platform can be as needed, issues interim acquisition instructions, and it is antifreeze to wake up the fire protection pipeline
Monitor terminal works.
Embodiment described above, only one kind of the utility model more preferably specific implementation mode, the skill of this field
The usual variations and alternatives that art personnel carry out within the scope of technical solutions of the utility model should all be included in the guarantor of the utility model
It protects in range.
Claims (10)
1. a kind of antifreeze monitoring system of fire protection pipeline, it is characterised in that including the antifreeze monitoring terminal of fire protection pipeline, gateway, cloud service
Device, monitor supervision platform, the antifreeze monitoring terminal of fire protection pipeline are mounted on fire protection pipeline and monitor point, acquire fire protection pipeline liquid electric
Conductance and temperature are interacted based on LoRaWAN agreements with gateway data, and gateway connects cloud by 3G/4G or cable network form and takes
Business device, monitor supervision platform remotely access Cloud Server, and when monitoring point monitoring data are more than early warning threshold value, monitor supervision platform sends out pre-
Alert signal；
The antifreeze monitoring terminal of fire protection pipeline includes MCU microcontrollers, sensing measurement unit, communication module, antenna, relay
Output module, liquid crystal display, encoder button, RS485 conversion modules, timing reset watchdog module, power supply module.
2. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the MCU microcontrollers, it is interior
Memory space is set, according to the preset sampling period, timing wake-up sensing measurement unit, and to the data of sensing measurement unit acquisition
Logic judgment is carried out, wake instruction communication module, relay output module work are issued.
3. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the sensing measurement unit packet
Conductivity acquisition module and temperature collecting module are included, is connect with the MCU microprocessors, adopting for MCU microprocessors connection is received
Collection instruction, to acquire fire protection pipeline liquid electric conductivity and temperature.
4. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the MCU microcontrollers will
The gathered data timing of sensing measurement unit acquires demand temporarily according to user, by SPI interface and the communication module into
Row data interaction, and data transmit-receive is realized by external antenna.
5. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the encoder button and institute
The connection of MCU microcontrollers is stated, icing conductivity early warning value, icing conductivity alarming value, low temperature early warning value, low temperature report is arranged
Alert value, sampling period.
6. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the relay output module
It is connect with the MCU microcontrollers, receives MCU micro-controller instructions, the auxiliary heater circuit of driving external electrical, warning circuit work.
7. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the liquid crystal display and institute
The connection of MCU microcontrollers is stated, to show conductivity, temperature, current value and pipeline liquid state.
8. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the RS485 conversion modules
It is connect with the MCU microcontrollers, is reserved communication interface, to local parameter setting, system upgrade.
9. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the timing reset house dog
Module is connect with the MCU microcontrollers, and reset can be timed to MCU microcontrollers, is prevented due to MCU microcontrollers crash
Influence conductivity, temperature monitoring task.
10. a kind of antifreeze monitoring system of fire protection pipeline as described in claim 1, which is characterized in that the power supply module, including
Externally fed and rechargeable lithium battery power supply supplementary power, to give the fire protection pipeline antifreeze monitoring terminal power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820264972.5U CN207895285U (en) | 2018-02-24 | 2018-02-24 | A kind of antifreeze monitoring system of fire protection pipeline |
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|---|---|---|---|
| CN201820264972.5U CN207895285U (en) | 2018-02-24 | 2018-02-24 | A kind of antifreeze monitoring system of fire protection pipeline |
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| CN207895285U true CN207895285U (en) | 2018-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161952A (en) * | 2019-05-29 | 2019-08-23 | 北京泰诺吉科技有限公司 | A kind of method for managing and monitoring and device carrying out inspection for fire-fighting equipment |
-
2018
- 2018-02-24 CN CN201820264972.5U patent/CN207895285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161952A (en) * | 2019-05-29 | 2019-08-23 | 北京泰诺吉科技有限公司 | A kind of method for managing and monitoring and device carrying out inspection for fire-fighting equipment |
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