CN208223543U - Indoor fireplug information acquisition system based on NB-IOT network - Google Patents
Indoor fireplug information acquisition system based on NB-IOT network Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims abstract description 73
- 238000012545 processing Methods 0.000 claims abstract description 64
- 230000009466 transformation Effects 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000035939 shock Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 239000003990 capacitor Substances 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 32
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000010365 information processing Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
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Abstract
The utility model discloses a kind of indoor fireplug information acquisition systems based on NB-IOT network comprising detection module, message processing module, power module and voltage transformation module.Detection module is used to detect the status information of fire hydrant, including hydraulic pressure detection module, shock detection module and tilt detection module.Message processing module is used to receive and generates alarm signal according to the detection data of detection module acquisition, passes through the wireless connection of NB-IOT communication module and remote monitoring center.Hydraulic pressure detection module, hit detection module, tilt detection module output end connect with message processing module input terminal.Hydraulic pressure detection module, hit detection module, tilt detection module, message processing module, NB-IOT communication module voltage input end pass through voltage transformation module and connect with power module.The beneficial effects of the utility model are both to be able to achieve water pressure monitoring, hit monitoring, remote data transmission, and O&M cost is low.
Description
Technical field
The utility model relates to the technical field of wireless telecommunications, in particular to a kind of indoor fire-fighting based on NB-IOT network
Bolt information acquisition system.
Background technique
Indoor fireplug is the important component of City fireproof, in some fire in recent years, can encounter, disappear often
Anti- bolt hydraulic pressure is low, is unable to satisfy fire-fighting operation or even phenomena such as fire hydrant is anhydrous, and fire hydrant is destroyed.As the important people's livelihood
Public property, fire hydrant have always monitoring difficult, check time-consuming, safeguard inconvenient feature.Fire hydrant with remote monitoring function
Information collecting device makees terminals to solve this problem, starts to occur successively.
On current market, the fire hydrant information collecting device of appearance is all based on the GPRS network of 2G signal, using great Rong
The fire hydrant information collecting device of dry cell power supply is measured, hydraulic signal is acquired by the type equipment by sensor, and is led to
Hydraulic signal is transmitted to monitoring center by the GPRS network for crossing 2G signal.
However, causing equipment every half a year to need replacing since GPRS module compares power consumption in itself in data transmission procedure
Battery, O&M cost are high.Simultaneously because technology, with new reason, various regions start gradually to abandon safeguarding to GPRS network, or even take
Disappear the GPRS function of 2G network, so the fire hydrant information collecting device applicable surface of traditional sense is more and more narrow.
Utility model content
In view of the problems of the existing technology, the main purpose of the utility model is to provide a kind of based on NB-IOT network
Indoor fireplug information acquisition system, be both able to achieve water pressure monitoring, hit monitoring, remote data transmission, and O&M cost
It is low.
To achieve the above object, the utility model proposes the indoor fireplug information collection system based on NB-IOT network
System, comprising: the testing number for detecting the detection module of the status information of fire hydrant, for receiving and being acquired according to detection module
According to come the message processing module that generates alarm signal, power module and voltage transformation module for power supply.Detection module packet
Include the hydraulic pressure detection module for detecting fire hydrant hydraulic pressure, for detect shock detection module that whether fire hydrant is impacted and
For detecting the whether inclined tilt detection module of fire hydrant.Message processing module passes through NB-IOT communication module and long-range monitoring
Center is wirelessly connected.The output end of hydraulic pressure detection module and the first input end of message processing module connect, and hit detection module
Output end and the second input terminal of message processing module connect, three axis data output ends of tilt detection module and information processing
The third input terminal of module connects.The voltage input end of hydraulic pressure detection module, the voltage input end for hitting detection module, inclination inspection
The voltage input end for surveying the voltage input end of module, the voltage input end of message processing module and NB-IOT communication module is logical
Overvoltage conversion module is connect with power module.
Preferably, hitting detection module includes phase inverter 74HC1G14 and vibrating sensor SW-420, vibrating sensor SW-
420 first end and the GND pin connect and ground of phase inverter 74HC1G14, second end and the A of phase inverter 74HC1G14 draw
Foot connection, and connect by resistance R9 with voltage transformation module.
The Y pin of phase inverter 74HC1G14 is connect with the first end of the first end of resistance R11, resistance R10, resistance R11's
The connection of second input terminal of second end and message processing module, the second end of the resistance R10 VCC with phase inverter 74HC1G14 respectively
Pin, voltage transformation module connection.
Preferably, tilt detection module is arranged in the acquisition equipment of fire hydrant comprising three axis acceleration sensors
ADXL335, two VSS pins are connect by resistance R5 with voltage transformation module, and X-OUT pin, Y-OUT pin, Z-OUT draw
Foot passes through the third input terminal connection of resistance R8, resistance R7, resistance R6 and message processing module, and its X-OUT pin, Y- respectively
OUT pin, Z-OUT pin also pass through capacitor C4, capacitor C3, capacitor C2 ground connection respectively.
Preferably, message processing module includes the control chip of model STM32F103R8T6, the PA0 of the control chip
Pin as message processing module first input end and connect with the output end of hydraulic pressure detection module.The PA1 of control chip draws
Foot, PA2 pin, PA3 pin are used as the third input terminal of message processing module, PA1 pin, PA2 pin, PA3 pin with
Three axis data output ends of tilt detection module connect.Control second input of the PB15 pin as message processing module of chip
It holds and is connect with the output end for hitting detection module.The PB10 pin and PB11 pin for controlling chip are respectively as information processing mould
The data sending terminal and data receiver of block, PB10 pin pass through the data sending terminal of resistance R12 and NB-IOT communication module
Connection, PB11 pin are connect by resistance R13 with the data receiver of NB-IOT communication module.Control the VBAT pin of chip
As message processing module voltage input end and connect with voltage transformation module.The PC3 of chip is controlled as information processing mould
First enable end of block, connect with voltage transformation module.Second enable end of the PA12 of chip as message processing module is controlled,
It is connect with voltage transformation module.Third enable end of the PA11 of chip as message processing module is controlled, with voltage transformation module
Connection.
Preferably, NB-IOT communication module is the BC95 module of Shanghai Yi Yuan communication technology limited liability company.
Preferably, voltage transformation module includes the first conversion circuit, the second conversion circuit, third conversion circuit and the 4th
Conversion circuit.
First conversion circuit includes voltage-stablizer LDO1, and the VIN pin of voltage-stablizer LDO1 is connect with power module, and is passed through
Capacitor C5 ground connection.The VOUT pin of voltage-stablizer LDO1 exports 3.3V voltage, and the electricity in parallel being made up of capacitor C6 with capacitor C7
Road ground connection.The VSS pin of voltage-stablizer LDO1 is grounded.
Second conversion circuit includes p-type metal-oxide-semiconductor Q1, and the grid of p-type metal-oxide-semiconductor Q1 and the first of message processing module enable
The first end connection at end, resistance R14.The source electrode of p-type metal-oxide-semiconductor Q1 connects 3.3V voltage, and connect with the second end of resistance R14.P-type
The drain electrode of metal-oxide-semiconductor Q1 is connect with the voltage input end for hitting detection module, and the parallel connection electricity being made up of capacitor C8, diode D1
Road ground connection.
Third conversion circuit includes voltage-stablizer LDO2, and the VIN pin of voltage-stablizer LDO2 is connect with power module, and is passed through
Capacitor C9 ground connection.The CE pin of voltage-stablizer LDO2 and the second enable end of message processing module, and be grounded by resistance R15.Surely
The VOUT pin of depressor LDO2 is connect with the voltage input end of tilt detection module, and passes through capacitor C10, capacitor C11, resistance
The parallel circuit ground connection that R16 is constituted.The VSS pin of voltage-stablizer LDO2 is grounded.
4th conversion circuit includes p-type metal-oxide-semiconductor Q2, p-type metal-oxide-semiconductor Q3 and triode T1.The grid of p-type MOS pipe Q2 with
The grid of p-type metal-oxide-semiconductor Q3, the first end of resistance R18, the connection of the first end of resistance R19, the source of source electrode and p-type metal-oxide-semiconductor Q3
Pole, the first end of resistance R17, the connection of the second end of resistance R18, the second end of resistance R17 are connect with power module.P-type metal-oxide-semiconductor
The drain electrode of Q2 is connect with the voltage input end of the drain electrode of p-type metal-oxide-semiconductor Q3, NB-IOT communication module, and passes through capacitor C12, two poles
The parallel circuit ground connection that pipe D2, diode D3 are constituted.The base stage of triode T1 passes through the third of resistance R20 and message processing module
Enable end connection, collector are connect with the second end of resistance R19, emitter ground connection.
The technical solution of the utility model is wide by using covering, more, low-power consumption the NB-IOT communication modules of connection carry out
Data send and receive, and greatly reduce the power consumption of acquisition system, and can effectively realize the data of fire hydrant correlated condition
Acquisition, remote transmission, monitoring alarm lamp function adapt to most scenes that current indoor fire hydrant uses.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the system frame of indoor fireplug information acquisition system one embodiment of the utility model based on NB-IOT network
Figure；
Fig. 2 is the circuit diagram of the shock detection module of detection module；
Fig. 3 is the circuit diagram of the tilt detection module of detection module；
The circuit diagram of Fig. 4 message processing module；
Fig. 5 is the circuit diagram of NB-IOT communication module；
Fig. 6 is the schematic diagram of the first conversion circuit of voltage transformation module；
Fig. 7 is the schematic diagram of the second conversion circuit of voltage transformation module；
Fig. 8 is the schematic diagram of the third conversion circuit of voltage transformation module；
Fig. 9 is the schematic diagram of the 4th conversion circuit of voltage transformation module；
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
The utility model proposes a kind of indoor fireplug information acquisition systems based on NB-IOT network.
Referring to Fig.1, Fig. 1 is indoor fireplug information acquisition system one embodiment of the utility model based on NB-IOT network
System block diagram.
As shown in Figure 1, in the utility model embodiment, it should the indoor fireplug information collection system based on NB-IOT network
System comprising detection module 100, message processing module 200, power module 300 and voltage transformation module 400.Detection module
100 for detecting the status information of fire hydrant, including the hydraulic pressure detection module for detecting fire hydrant hydraulic pressure, for detecting fire-fighting
Shock detection module that whether bolt is impacted and for detecting the whether inclined tilt detection module of fire hydrant.Information processing mould
Block 200 is used to receive and generates alarm signal according to the detection data that detection module 100 acquires, and communicates mould by NB-IOT
Block 500 and remote monitoring center are wirelessly connected.The output end of hydraulic pressure detection module and the first input end of message processing module 200
Connection, the output end for hitting detection module are connect with the second input terminal of message processing module 200, three axis of tilt detection module
Data output end is connect with the third input terminal of message processing module 200.The voltage input end of hydraulic pressure detection module hits detection
The voltage input end of module, the voltage input end of tilt detection module, message processing module 200 voltage input end and NB-
The voltage input end of IOT communication module 500 passes through voltage transformation module 400 and connect with power module 300.
In the present embodiment, power module 300 is the large capacity non-rechargeable battery of 3.6V-4.2V, can be met for a long time
Operative scenario.
In the present embodiment, existing hydraulic pressure sensor can be used in hydraulic pressure detection module, and the water outlet of fire hydrant is arranged in
At mouthful, to detect whether the hydraulic pressure of fire hydrant is in normal range (NR).When water pressure data is more than defined normal range (NR), then believe
Processing module 200 is ceased by alarm signal, and remote monitoring center is transmitted to by NB-IOT communication module 500, so as to the people that works
Member is remotely receiving alarm signal, sends staff to overhaul in time.
As shown in Fig. 2, in the present embodiment, hitting detection module includes phase inverter 74HC1G14 and vibrating sensor SW-
The GND pin connect and ground of the first end of 420, vibrating sensor SW-420 and phase inverter 74HC1G14, second end and anti-
The A pin of phase device 74HC1G14 connects, and is connect by resistance R9 with voltage transformation module 400.The Y of phase inverter 74HC1G14 draws
Foot is connect with the first end of the first end of resistance R11, resistance R10, and the of the second end of resistance R10 and message processing module 200
The connection of two input terminals, the second end of resistance R11 connect with the VCC pin of phase inverter 74HC1G14, voltage transformation module 400 respectively
It connects.Vibrating sensor SW-420 is a kind of omnidirectional's vibrating sensor designed using new type of high sensitivity sensing membrane, is had complete
To detection, sensitivity is adjustable, high anti-jamming capacity, can accurately detect the current Vibration Condition of fire hydrant.
As shown in figure 3, in the present embodiment, tilt detection module is arranged in the acquisition equipment of fire hydrant comprising three
Axis acceleration sensor ADXL335, two VSS pins are connect by resistance R5 with voltage transformation module 400, X-OUT pin,
Y-OUT pin, Z-OUT pin pass through the third input terminal of resistance R8, resistance R7, resistance R6 and message processing module 200 respectively
Connection, and its X-OUT pin, Y-OUT pin, Z-OUT pin also pass through capacitor C4, capacitor C3, capacitor C2 ground connection respectively.When
When information processing equipment reads the vibration data that vibrating sensor issues, it can be issued in conjunction with three axis acceleration sensor ADXL335
Three number of axle evidences, present vibration situation is determined, therefore, it is determined that whether current fire hydrant is in being knocked state, if it is determined that result
To be knocked state, then message processing module 200 will generate alarm signal at once.By the way that vibrating sensor SW-420 and three is arranged
Axis acceleration sensor ADXL335 judges the shock conditions of fire hydrant jointly, can prevent the false triggering of message processing module 200, mention
High 200 judging nicety rate of message processing module.
As shown in figure 4, in the present embodiment, message processing module 200 includes the control of model STM32F103R8T6
Chip, first input end of the PA0 pin of the control chip as message processing module 200, and connect with the second end of resistance R11
It connects.PA1 pin, PA2 pin, the PA3 pin of control chip are used as the third input terminal of message processing module 200, and PA1 draws
Foot is connect with the second end by resistance R8, and PA2 pin is connect with the second end by resistance R7, PA5 pin with pass through
The second end of resistance R6 connects.Control second input terminal of the PB15 pin of chip as message processing module 200, and and resistance
The second end of R11 connects.The PB10 pin and PB11 pin for controlling chip are sent respectively as the data of message processing module 200
End and data receiver, PB10 pin are connect by resistance R12 with the data sending terminal of NB-IOT communication module 500,
PB11 pin is connect by resistance R13 with the data receiver of NB-IOT communication module 500.Control the VBAT pin conduct of chip
The voltage input end of message processing module 200 is simultaneously connect with voltage transformation module 400.The PC3 of chip is controlled as information processing
First enable end of module 200, connect with voltage transformation module 400.The PA12 of chip is controlled as message processing module 200
Second enable end is connect with voltage transformation module 400.The PA11 for controlling chip is enabled as the third of message processing module 200
End, connect with voltage transformation module 400.STM32F103R8T6 chip it is low in energy consumption, standby current can control in 3uA.
As shown in figure 5, in embodiment, NB-IOT communication module 500 is Shanghai Yi Yuan communication technology limited liability company
BC95 module, have the characteristics that covering is wide, connection is more, rate is fast, at low cost, low in energy consumption, framework is excellent etc..
In the present embodiment, voltage transformation module 400 includes the first conversion circuit, the second conversion circuit, third conversion electricity
Road and the 4th conversion circuit.
As shown in fig. 6, the first conversion circuit includes voltage-stablizer LDO1, the model XC6204 of voltage-stablizer LDO1,
VIN pin is connect with power module 300, and is grounded by capacitor C5.The VOUT pin of voltage-stablizer LDO1 exports 3.3V voltage,
And it is connect with the VBAT pin of the voltage input end of hydraulic pressure detection module, control chip, while also passing through capacitor C6 and capacitor C7
The parallel circuit of composition is grounded.The VSS pin of voltage-stablizer LDO1 is grounded.
As shown in fig. 7, the second conversion circuit includes p-type metal-oxide-semiconductor Q1, the grid and message processing module of p-type metal-oxide-semiconductor Q1
The first end connection of 200 the first enable end, resistance R14.The source electrode of p-type metal-oxide-semiconductor Q1 and the VOUT pin of voltage-stablizer LDO1 connect
It connects, and is connect with the second end of resistance R14.The drain electrode of p-type MOS pipe Q1 and VCC pin, the resistance R9 of phase inverter 74HC1G14
Second end, the second end of resistance R10 connection, and by capacitor C8, diode D1 constitute parallel circuit ground connection.
As shown in figure 8, third conversion circuit includes voltage-stablizer LDO2, the model XC6204 of voltage-stablizer LDO2,
VIN pin is connect with power module 300, and is grounded by capacitor C9.The CE pin and message processing module of voltage-stablizer LDO2
200 the second enable end, and be grounded by resistance R15.The VOUT pin of voltage-stablizer LDO2 is connect with the second end of resistance R5,
And the parallel circuit ground connection being made up of capacitor C10, capacitor C11, resistance R16.The VSS pin of voltage-stablizer LDO2 is grounded.
As shown in figure 9, the 4th conversion circuit includes p-type metal-oxide-semiconductor Q2, p-type metal-oxide-semiconductor Q3 and triode T1.P-type metal-oxide-semiconductor
The grid of Q2 is connect with the grid of p-type metal-oxide-semiconductor Q3, the first end of resistance R18, the first end of resistance R19, source electrode and p-type
The source electrode of metal-oxide-semiconductor Q3, the first end of resistance R17, the connection of the second end of resistance R18, the second end and power module of resistance R17
300 connections.The drain electrode of p-type metal-oxide-semiconductor Q2 and the drain electrode of p-type metal-oxide-semiconductor Q3, two VBAT pins of NB-IOT communication module 500, and lead to
Cross the parallel circuit ground connection that capacitor C12, diode D2, diode D3 are constituted.The base stage of triode T1 passes through resistance R20 and letter
The third enable end connection of processing module 200 is ceased, collector is connect with the second end of resistance R19, emitter ground connection.
In the present embodiment, the voltage range that power module 300 provides controls chip and hydraulic pressure senses in 3.6V-4.2V
The supply voltage of device carries out decompression conversion, is depressured, be can effectively ensure that by using the voltage-stablizer LDO1 of controllable low-pressure type
To the normal power supply of control chip and hydraulic pressure sensor.The operating voltage of three axis acceleration sensor ADXL335 passes through voltage-stablizer
LDO2 is converted.The voltage of NB-IOT communication module 500 and vibrating sensor SW-420 need controllably, by using P-channel
Metal-oxide-semiconductor control, while realizing control function, and can guarantee and provide larger current for subsequent module.
The utility model is as follows to the collection process of the status information of fire hydrant:
(1) hydraulic pressure sensor detects the water pressure data of current fire hydrant and is sent to control chip, and control chip judgement should
Water pressure data whether be more than setting normal range (NR).When water pressure data is more than normal range (NR), then controls chip and generate alarm signal
Number, and remote monitoring center is sent to by NB-IOT communication module 500；
(2) vibrating sensor SW-420 and three axis acceleration sensor ADXL335 detects the vibration and inclination of current fire hydrant
Situation, to judge whether current fire hydrant is in the state of being knocked.If controlling chip in state is knocked and generating alarm signal
Number, and remote monitoring center is sent to by NB-IOT communication module 500；
(3) when control chip send water pressure data, vibration data and three number of axle according to when, wait remote monitoring center to return
It answers, if control chip receives response data, the communication function of NB-IOT communication module 500 is closed, into battery saving mode；If control
Coremaking piece does not receive response data, then persistently sends, and sends interval 30S every time, continuous 10 times, fails to receive response if remaining unchanged
Data save then by the FLASH of the detection data deposit control chip interior of fire hydrant as blind area data.Blind area data every 6
Hour sends once, and blind area data is deleted after being sent completely, and transmission is not completed, then persistently recorded.
The technical solution of the utility model is wide by using covering, more, low-power consumption the NB-IOT communication modules 500 of connection into
Row data send and receive, and greatly reduce the power consumption of acquisition system, extend battery use the time, reduce O&M at
This, and can effectively realize the data acquisition of fire hydrant correlated condition, remote transmission, the functions such as monitoring alarm adapt to current indoor
Most scenes that fire hydrant uses；By the way that voltage conversion circuit is arranged, the voltage output of system is effectively controlled, by right
Disparate modules use individual conversion circuit, that is, ensure that the normal power supply to each module,；The effect of voltage conversion is improved again
Rate reduces unnecessary power consumption penalty；Data processing is carried out using STM32F103R8T6 chip, performance is high, and it is low in energy consumption,
Further reduce the power consumption of system.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (6)
1. a kind of indoor fireplug information acquisition system based on NB-IOT network characterized by comprising
For detecting the detection module of the status information of fire hydrant, the detection module includes the water for detecting fire hydrant hydraulic pressure
Detection module is pressed, it is whether inclined for detecting shock detection module that whether fire hydrant is impacted and for detecting fire hydrant
Tilt detection module；
It is described for receiving and generating according to the detection data of the detection module acquisition message processing module of alarm signal
Message processing module is wirelessly connected by NB-IOT communication module and remote monitoring center；
Power module and voltage transformation module for power supply；
The output end of the hydraulic pressure detection module is connect with the first input end of the message processing module, and the shock detects mould
The output end of block is connect with the second input terminal of the message processing module, three axis data output ends of the tilt detection module
It is connect with the third input terminal of the message processing module；The voltage input end of the hydraulic pressure detection module, shock detection
The voltage input end of module, the voltage input end of the tilt detection module, the message processing module voltage input end with
And the voltage input end of the NB-IOT communication module passes through voltage transformation module and connect with power module.
2. as described in claim 1 based on the indoor fireplug information acquisition system of NB-IOT network, which is characterized in that described
Hitting detection module includes phase inverter 74HC1G14 and vibrating sensor SW-420, the first end of the vibrating sensor SW-420
With the GND pin connect and ground of phase inverter 74HC1G14, second end is connect with the A pin of phase inverter 74HC1G14, and is led to
Resistance R9 is crossed to connect with voltage transformation module；
The Y pin of the phase inverter 74HC1G14 is connect with the first end of the first end of resistance R11, resistance R10, resistance R11's
Second end is connect with the second input terminal of the message processing module, the second end of resistance R10 respectively with phase inverter 74HC1G14
VCC pin, voltage transformation module connection.
3. as described in claim 1 based on the indoor fireplug information acquisition system of NB-IOT network, which is characterized in that described
Tilt detection module is arranged in the acquisition equipment of fire hydrant comprising three axis acceleration sensor ADXL335, two VSS pins
It is connect by resistance R5 with voltage transformation module, X-OUT pin, Y-OUT pin, Z-OUT pin pass through resistance R8, electricity respectively
Resistance R7, resistance R6 are connect with the third input terminal of the message processing module, and its X-OUT pin, Y-OUT pin, Z-OUT draw
Foot also passes through capacitor C4, capacitor C3, capacitor C2 ground connection respectively.
4. as described in claim 1 based on the indoor fireplug information acquisition system of NB-IOT network, which is characterized in that described
Message processing module includes the control chip of model STM32F103R8T6, and the PA0 pin of the control chip is as information processing
The first input end of module is simultaneously connect with the output end of the hydraulic pressure detection module；Control the PA1 pin of chip, PA2 pin,
PA3 pin is used as the third input terminal of message processing module, PA1 pin, PA2 pin, PA3 pin and the tilt detection
Three axis data output ends of module connect；Control chip PB15 pin as message processing module the second input terminal and with institute
State the output end connection for hitting detection module；The PB10 pin and PB11 pin for controlling chip are respectively as message processing module
Data sending terminal and data receiver, PB10 pin are connect by resistance R12 with the data sending terminal of NB-IOT communication module,
Its PB11 pin is connect by resistance R13 with the data receiver of NB-IOT communication module；The VBAT pin of the control chip
As message processing module voltage input end and connect with voltage transformation module；
First enable end of the PC3 of the control chip as message processing module, connect with the voltage transformation module；It is described
Second enable end of the PA12 of chip as message processing module is controlled, is connect with the voltage transformation module；The control core
Third enable end of the PA11 of piece as message processing module, connect with the voltage transformation module.
5. as described in claim 1 based on the indoor fireplug information acquisition system of NB-IOT network, which is characterized in that described
NB-IOT communication module is the BC95 module of Shanghai Yi Yuan communication technology limited liability company.
6. special as claimed in any one of claims 1 to 5, wherein based on the indoor fireplug information acquisition system of NB-IOT network
Sign is that the voltage transformation module includes the first conversion circuit, the second conversion circuit, third conversion circuit and the 4th conversion
Circuit；
First conversion circuit includes voltage-stablizer LDO1, and the VIN pin of voltage-stablizer LDO1 is connect with power module, and is passed through
Capacitor C5 ground connection；The VOUT pin of voltage-stablizer LDO1 exports 3.3V voltage, and the electricity in parallel being made up of capacitor C6 with capacitor C7
Road ground connection；The VSS pin of voltage-stablizer LDO1 is grounded；
Second conversion circuit includes p-type metal-oxide-semiconductor Q1, the grid of p-type metal-oxide-semiconductor Q1 and the first of the message processing module
The first end connection of enable end, resistance R14；The source electrode of the p-type metal-oxide-semiconductor Q1 connects 3.3V voltage, and the second end with resistance R14
Connection；The drain electrode of the p-type metal-oxide-semiconductor Q1 is connect with the voltage input end for hitting detection module, and passes through capacitor C8, two poles
The parallel circuit ground connection that pipe D1 is constituted；
The third conversion circuit includes voltage-stablizer LDO2, and the VIN pin of voltage-stablizer LDO2 is connect with power module, and is passed through
Capacitor C9 ground connection；The CE pin of the voltage-stablizer LDO2 and the second enable end of the message processing module, and pass through resistance R15
Ground connection；The VOUT pin of the voltage-stablizer LDO2 is connect with the voltage input end of the tilt detection module, and passes through capacitor
The parallel circuit ground connection that C10, capacitor C11, resistance R16 are constituted；The VSS pin of the voltage-stablizer LDO2 is grounded；
4th conversion circuit includes p-type metal-oxide-semiconductor Q2, p-type metal-oxide-semiconductor Q3 and triode T1；The grid of the p-type metal-oxide-semiconductor Q2
Pole is connect with the grid of p-type metal-oxide-semiconductor Q3, the first end of resistance R18, the first end of resistance R19, and source electrode is with p-type metal-oxide-semiconductor Q3's
Source electrode, the first end of resistance R17, the connection of the second end of resistance R18, the second end of resistance R17 are connect with power module；The P
The drain electrode of type metal-oxide-semiconductor Q2 is connect with the voltage input end of the drain electrode of p-type metal-oxide-semiconductor Q3, the NB-IOT communication module, and passes through electricity
Hold the parallel circuit ground connection that C12, diode D2, diode D3 are constituted；The base stage of the triode T1 by resistance R20 with it is described
The third enable end of message processing module connects, and collector is connect with the second end of resistance R19, emitter ground connection.
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| CN201820477040.9U CN208223543U (en) | 2018-04-04 | 2018-04-04 | Indoor fireplug information acquisition system based on NB-IOT network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520570A (en) * | 2018-12-29 | 2019-03-26 | 沪航消防科技有限公司 | A kind of fire hydrant embedded data acquisition device |
| CN112729234A (en) * | 2021-01-18 | 2021-04-30 | 郑州丰嘉科技有限公司 | Building settlement and destruction detection device |
| CN113310677A (en) * | 2021-05-27 | 2021-08-27 | 南京湖博智能科技有限公司 | Fire hydrant monitoring devices |
-
2018
- 2018-04-04 CN CN201820477040.9U patent/CN208223543U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520570A (en) * | 2018-12-29 | 2019-03-26 | 沪航消防科技有限公司 | A kind of fire hydrant embedded data acquisition device |
| CN112729234A (en) * | 2021-01-18 | 2021-04-30 | 郑州丰嘉科技有限公司 | Building settlement and destruction detection device |
| CN113310677A (en) * | 2021-05-27 | 2021-08-27 | 南京湖博智能科技有限公司 | Fire hydrant monitoring devices |
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