CN208796433U - A kind of pipeline pressure acquisition system - Google Patents
A kind of pipeline pressure acquisition system Download PDFInfo
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- CN208796433U CN208796433U CN201821368647.XU CN201821368647U CN208796433U CN 208796433 U CN208796433 U CN 208796433U CN 201821368647 U CN201821368647 U CN 201821368647U CN 208796433 U CN208796433 U CN 208796433U
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Abstract
The utility model relates to a kind of pipeline pressure acquisition systems, including monitor terminal, monitor terminal is connected with multiple pipes by telecommunication mode and presses Acquisition Instrument host, each pipe pressure Acquisition Instrument host is connected with multiple pipes being installed on pipeline that disperse by short haul connection mode and presses collector；Pipe pressure collector is used to detect the pressure in pipeline, and send pressure detection data to pipe pressure Acquisition Instrument host, pipe pressure Acquisition Instrument host is used to receive and the pressure detection data of storage tube pressure collector transmission, and sends the pressure detection data of storage to monitor terminal by the interval time of setting.It has the advantages that arrangement is convenient, highly-safe, explosion-proof performance is good, practical, the convenience of installation and maintenance can be improved, and can reduce equipment cost.
Description
Technical field
The utility model relates to a kind of pressure acquisition devices, and in particular to a kind of pipeline pressure acquisition system.
Background technique
It for the safe operation for guaranteeing gas ductwork, needs to detect the pressure in gas pipeline, so as to by pressure control
System is in safe range.Current pressure acquisition system commonly employed in the art detects pipeline pressure, pressure acquisition system
It is made of monitor terminal and multiple pipes pressure Acquisition Instrument, it includes host and pressure transmitter that pipe, which presses Acquisition Instrument, is examined by pressure transmitter
Pipeline pressure is surveyed, and pressure detection data is transmitted to host by signal wire, detection data is stored by host and by preset
Period will test data and upload to monitor terminal.But existing pressure acquisition system is asked there is also many in practical applications
Topic, is mainly manifested in following aspect: 1, the host of pipe pressure Acquisition Instrument and pressure transmitter are by wired connection, and wiring is more
It is cumbersome, and be not easy to safeguard；2, the host of pipe pressure Acquisition Instrument and pressure transmitter are one-to-one connection types, for identical
Test point needs more host, and equipment cost is higher；3, it is limited by wiring, pipe presses the host of Acquisition Instrument usually and pressure inverting
Device is installed along in the explosion-proof area of gas ductwork, and because it powers using external power supply, safety is poor.
Utility model content
The purpose of the utility model is to provide a kind of pipeline pressure acquisition systems, have arrangement convenient, highly-safe, anti-
Good, the practical advantage of quick-fried performance can be improved the convenience of installation and maintenance, and can reduce equipment cost.
For solve the above-mentioned problems in the prior art, a kind of pipeline pressure acquisition system provided by the utility model,
Including monitor terminal, the monitor terminal is connected with multiple pipes by telecommunication mode and presses Acquisition Instrument host, each pipe
Pressure Acquisition Instrument host is connected with multiple pipes being installed on pipeline that disperse by short haul connection mode and presses collector；The pipe
Pressure collector is used to detect the pressure in pipeline, and sends pressure detection data to pipe pressure Acquisition Instrument host, and the pipe pressure is adopted
Collect instrument host for receiving the pressure detection data with storage tube pressure collector transmission, and pressing the interval time set for storage
Pressure detection data sends monitor terminal to.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein the pipe pressure Acquisition Instrument host is equipped with master
Circuit is controlled, governor circuit includes first microprocessor and the power interface circuit connecting respectively with first microprocessor, first
Communication interface circuit, the second communication interface circuit and data storage circuitry, the first communication interface circuit are connected with the first channel radio
Believe module, the second communication interface circuit is connected with the second wireless communication module；The pipe pressure collector is equipped with pressure acquisition circuit,
Pressure acquisition circuit includes the second microprocessor and the battery interface circuit, the third communication that connect respectively with the second microprocessor
Interface circuit and pressure sensor interface circuit, battery interface circuit connection have supplying cell, the connection of third communication interface circuit
There is third wireless communication module, pressure sensor interface circuit connection has pressure sensor module；Wherein, the first communication interface electricity
Road and third communication interface circuit are short-range wireless communications interfaces circuit, the first wireless communication module and third radio communication mold
Block is short-range wireless communication module, and the second communication interface circuit is long range wireless communication interface circuit, the second wireless communication
Module is long range wireless communication module.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein the first microprocessor includes model
For the single-chip microcontroller U1 of STM32F103C6, the OSC_IN pin and OSC_OUT pin of single-chip microcontroller U1 is connected with clock circuit, monolithic
The VBAT pin of machine U1 is connected with Clock battery；The power interface circuit includes the connector P1 of Header3 type, connector P1
Terminal 2 and terminal 3 be grounded, be connected with the first power supply circuit after the terminal 1 series diode D1 and fuse F1 of connector P1
With the second power supply circuit, the first power supply circuit is that first microprocessor, the first communication interface circuit and data storage circuitry are powered,
Second power supply circuit is the power supply of the second communication interface circuit.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein first power supply circuit includes model
For the pressure regulation chip U2 of MC34063, pin 1, pin 7 and the pin 8 of pressure regulation chip U2 be connected with each other and after series resistance R1 with
Power interface circuit connection, the pin 6 of pressure regulation chip U2 connect with power interface circuit, the pin 6 of pressure regulation chip U2 with it is in parallel
Capacitor C1 connected with the common end of capacitor C2, another common end grounding of capacitor C1 and capacitor C2, the pin 4 of pressure regulation chip U2
It is grounded, is grounded, is grounded after the 5 series resistance R2 of pin of pressure regulation chip U2, pressure regulation after the 3 series capacitance C3 of pin of pressure regulation chip U2
It is grounded after the pin 5 series resistance R3 and capacitor C4 of chip U2, the diode D2 of 2 series opposing of the pin setting of pressure regulation chip U2
After be grounded, be grounded after the pin 2 series inductance L1 and capacitor C5 of pressure regulation chip U2, the line between resistance R3 and capacitor C4 takes one
Point and the line between inductance L1 and capacitor C5 connect, and the line between inductance L1 and capacitor C5 takes a little as the first power supply electricity
The output end on road；First power supply circuit is connected with voltage detecting circuit, the voltage detecting circuit include concatenated resistance R4 and
The other end of resistance R5, resistance R4 are connect with the pin 6 of pressure regulation chip U2, the other end ground connection of resistance R5, resistance R4 and resistance
Line between R5, which takes, a little to be connect with the PB1/ADC_IN9/TIM3_CH4 pin of single-chip microcontroller U1.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein second power supply circuit includes model
For the pressure regulation chip U3 of LM22676-ADJ, it is connect after the VIN pin series inductance L2 of pressure regulation chip U3 with power interface circuit,
It is grounded after SW the pin series inductance L3 and capacitor C6 of pressure regulation chip U3, the line between inductance L3 and capacitor C6 takes some conducts
The output end of second power supply circuit；The common end of the VIN pin of pressure regulation chip U3 and capacitor C7 in parallel, capacitor C8 and capacitor C9
Connection, another common end grounding of capacitor C6, capacitor C8 and capacitor C9, after the VIN pin series resistance R6 of pressure regulation chip U3 with
The connection of EN pin, the line between L3 and capacitor C6 are connect after taking some series resistance R7 with the FB pin of pressure regulation chip U3, are adjusted
It is grounded after pressing the FB pin series resistance R8 of chip U3, the BOOT pin series capacitance C10 of pressure regulation chip U3 and oppositely arranged
It is grounded after diode D3, the line between capacitor C10 and diode D3, which takes, a little to be connect with the SW pin of pressure regulation chip U3, pressure regulation
The GND pin of chip U3 is grounded；Second power supply circuit is connected with first switch circuit, and the first switch circuit includes triode
Q1, resistance R9 and resistance R10, the PB0/ADC_IN8/TIM3_CH3 after the base series resistor R9 of triode Q1 with single-chip microcontroller U1
Pin connection, the collector of triode Q1 are connect with the EN pin of pressure regulation chip U3, the emitter ground connection of triode Q1, resistance
The both ends correspondence of R10 is connect with the base stage of triode Q1 and emitter.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein first communication interface circuit includes
The mother row P2 of model MHDR1X8, the terminal 1 of the mother row P2 are connect with the output end of the first power supply circuit, arrange the end of mother P2
Corresponding PA8/TIM1_CH1/MCO pin, the PB12/ with single-chip microcontroller U1 of son 2, terminal 3, terminal 4, terminal 5, terminal 6 and terminal 7
SPI2_NSS/TIM1_BKIN pin, PB13/SPI2_SCK/TIM1_CH1N pin, PB15/SPI2_MOSI/TIM1_CH3N pipe
Foot, PB14/SPI2_MISO/TIM1_CH2N pin are connected with PA11/CANRX/USBDM/TIM1_CH4 pin, arrange the end of mother P2
Son 8 is grounded；Second communication interface circuit includes the connector P3 of Header4 type, the terminal 1 of connector P3 and the second power supply
The output end of circuit connects, the corresponding PA2/USART2_TX/ADC_IN2/ with single-chip microcontroller U1 of the terminal 2 and terminal 3 of connector P3
TIM2_CH3 pin is connected with PA3/USART2_RX/ADC_IN3/TIM2_CH4, and the terminal 4 of connector P3 is grounded；The data
Storage circuit includes the SI pin and single-chip microcontroller U1 of the storage chip U4, the storage chip U4 of model AT45DBD41
The connection of PA7/SPI1_MOSI/ADC_IN7/TIM3_CH2 pin, the SCK pin of storage chip U4 and the PA5/ of single-chip microcontroller U1
The connection of SPI1_SCK/ADC_IN5 pin, storage chip U4 /PA4/SPI1_NSS/ADC_IN4 of CS pin and single-chip microcontroller U1
Pin connection, the SD pin of storage chip U4 and the PA6/SPI1_MISO/ADC_IN6/TIM3_CH1 pin of single-chip microcontroller U1 connect
It connects, storage chip U4 /common end of PESET pin and resistance R11 in parallel, resistance R12, resistance R13 and resistance R14 connects
It connects, the other end of resistance R11 is connect with the SI pin of storage chip U4, and the other end of resistance R12 and the SCK of storage chip U4 are managed
Foot connection, the other end of resistance R13 and storage chip U4 /CS pin connect, the other end of resistance R14 is with storage chip U4's
The connection of SD pin, storage chip U4 /PESET pin connect with the output end of the first power supply circuit, the VCC of storage chip U4 is managed
Foot and/WP pin are connected with each other and connect with the output end of the first power supply circuit, storage chip U4 /WP pin series capacitance
It is grounded after C11.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein second microprocessor includes model
For the single-chip microcontroller U5 of MSP43OF149, the XIN pin and XOUT/TCLK pin of single-chip microcontroller U5 are correspondingly connected with the both ends of a crystal oscillator；
The battery interface circuit includes the connector P4 and connector S1 of Header2 type, and connector P4 is battery interface, connector S1
Terminal 2 for power switch, connector P4 is grounded, and the terminal 1 of connector P4 is connect with the terminal 2 of connector S1, connector S1
Terminal 1 connect output end as battery interface circuit after fuse F2；The output end of battery interface circuit is connected with second
Switching circuit, the second switch circuit include the gate series resistance of POMS pipe Q2, resistance R15 and resistance R16, POMS pipe Q2
The P1.4/SMCLK pin of connection single-chip microcontroller U5 after R15, the source electrode and battery interface circuit connection of POMS pipe Q2, POMS pipe Q2's
The both ends correspondence of drain electrode and pressure sensor interface circuit connection, resistance R16 is connect with the source electrode of POMS pipe Q2 and grid.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein the pressure sensor interface circuit packet
The connector P5 of Header3 type is included, the terminal 1 of connector P5 is connect with the drain electrode of POMS pipe Q2, the terminal 2 and list of connector P5
The P6.1/A1 pin of piece machine U5 connects, and the terminal 3 of connector P5 is grounded；The pressure sensor module includes silicon chip and sets
Balanced bridge on a silicon substrate is set, balanced bridge is constituted and is connected with by resistance R17, resistance R18, resistance R19 and resistance R20
Signal amplification circuit and A/D converter circuit；The third communication interface circuit includes the mother row P6 of model MHDR1X8, arranges mother P6
Terminal 1 and battery interface circuit connection, arrange the terminal 2 of mother P6, terminal 3, terminal 4, terminal 5, terminal 6 and terminal 7 it is corresponding and
P2.7/TA0 pin, P2.6/ADC12CLK pin, P2.5/Rosc pin, the P2.4/CA1/TA2 pin, P2.3/ of single-chip microcontroller U5
CA0/TA1 pin is connected with P2.2/CAOUT/TA0 pin, and the terminal 8 of row mother P6 is grounded.
Further, a kind of pipeline pressure acquisition system of the utility model, wherein the pressure acquisition circuit further includes temperature
It spends detection circuit and programming interface circuit, the temperature sensing circuit includes the temperature sensor of model LM50CIM3X
The DQ pin of U6, temperature sensor U6 are connect with the P6.5/A5 pin of single-chip microcontroller U5, the DQ pin series electrical of temperature sensor U6
It is grounded after holding C12, the VCC pin of temperature sensor U6 is connect with the drain electrode of POMS pipe Q2, and the GND pin of temperature sensor U6 connects
Ground；The programming interface circuit includes JATAG interface, terminal 1, terminal 2, terminal 3, terminal 4 and the terminal of JATAG interface
6 correspondences are connect with the TDO/TDI pin of single-chip microcontroller U5, TDI pin, TMS pin, TCK pin and RST/NMI pin, and JATAG connects
The terminal 5 of mouth is grounded.
A kind of pipeline pressure acquisition system of the utility model compared with prior art, has the advantage that the utility model
By the way that monitor terminal is arranged, allows monitor terminal to connect multiple pipes by telecommunication mode and press Acquisition Instrument host, and allow each
A pipe pressure Acquisition Instrument host connects multiple pipes being installed on pipeline that disperse by short haul connection mode and presses collector.Its
In, pipe pressure collector is used to detect the pressure in pipeline, and sends pressure detection data to pipe pressure Acquisition Instrument host, and pipe pressure is adopted
Collect instrument host for receiving the pressure detection data with storage tube pressure collector transmission, and pressing the interval time set for storage
Pressure detection data sends monitor terminal to.Thus just constitute that a kind of arrangement is convenient, highly-safe, explosion-proof performance is good, practical
The strong pipeline pressure acquisition system of property.In practical applications, pipe pressure collector is installed on the pipe in gas ductwork explosion-proof area
On road, pipe pressure Acquisition Instrument host is arranged in outside the explosion-proof area of gas ductwork.Pressure in pipeline is detected by pipe pressure collector,
And pressure detection data is sent to pipe by short-distance wireless communication mode and press Acquisition Instrument host；It is connect by pipe pressure Acquisition Instrument host
It receives and the pressure detection data of storage tube pressure collector transmission, and according to preset interval time by the pressure detection data of storage
Monitor terminal is transmitted to by telecommunication mode.The utility model is by allowing pipe to press Acquisition Instrument host and pipe that collector is pressed to adopt
Logical short haul connection mode connects, and compared with the prior art, not only eliminates the cumbersome process of wiring, reduces installation difficulty,
And Acquisition Instrument host can be pressed to remove the explosion-proof area of gas ductwork pipe, improve safety.Meanwhile the utility model realizes
One pipe pressure Acquisition Instrument host connects the purpose that multiple pipes press collector by short haul connection mode, for identical test point
The usage quantity that pipe pressure Acquisition Instrument host can be largely reduced, effectively reduces equipment cost.
Shown specific embodiment is made a kind of pipeline pressure acquisition system of the utility model further with reference to the accompanying drawing
It is described in detail:
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of pipeline pressure acquisition system of the utility model；
Fig. 2 is the schematic diagram of governor circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 3 is the schematic diagram of first microprocessor in a kind of pipeline pressure acquisition system of the utility model；
Fig. 4 is the schematic diagram of power interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 5 is the schematic diagram of the first power supply circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 6 is the schematic diagram of the second power supply circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 7 is the schematic diagram of first switch circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 8 is the schematic diagram of the first communication interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Fig. 9 is the schematic diagram of the second communication interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 10 is the schematic diagram of data storage circuitry in a kind of pipeline pressure acquisition system of the utility model；
Figure 11 is the schematic diagram of pressure acquisition circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 12 is the schematic diagram of the second microprocessor in a kind of pipeline pressure acquisition system of the utility model；
Figure 13 is the schematic diagram of battery interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 14 is the schematic diagram of second switch circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 15 is the schematic diagram of pressure sensor interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 16 is the schematic diagram of pressure sensor module in a kind of pipeline pressure acquisition system of the utility model；
Figure 17 is the schematic diagram of third communication interface circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 18 is the schematic diagram of temperature sensing circuit in a kind of pipeline pressure acquisition system of the utility model；
Figure 19 is the schematic diagram of programming interface circuit in a kind of pipeline pressure acquisition system of the utility model.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as upper and lower, front, rear, left and right described in the utility model are only according to attached
Scheme carry out description, in order to understand, not to the technical solution of the utility model and be claimed range progress limitation.
A kind of specific embodiment of pipeline pressure acquisition system of the utility model as shown in Figure 1, including monitor terminal, allow
Monitor terminal connects multiple pipes by telecommunication mode and presses Acquisition Instrument host, and keeps each pipe pressure Acquisition Instrument host logical
It crosses short haul connection mode and connects the pipes pressure collector that multiple dispersions are installed on pipeline.Wherein, pipe pressure collector is for detecting
Pressure in pipeline, and send pressure detection data to pipe pressure Acquisition Instrument host；Pipe pressure Acquisition Instrument host is for receiving and depositing
The pressure detection data of pipe pressure collector transmission is stored up, and sends the pressure detection data of storage to prison by the interval time of setting
Control terminal.The pipe for just constituting that a kind of arrangement is convenient, highly-safe, explosion-proof performance is good, practical is set through the above structure
Road pressure acquisition system.In practical applications, pipe pressure collector is installed on the pipeline in gas ductwork explosion-proof area, will be managed
Pressure Acquisition Instrument host is arranged in outside the explosion-proof area of gas ductwork.By the pressure in pipe pressure collector detection pipeline, and by pressure
Detection data sends pipe to by short-distance wireless communication mode and presses Acquisition Instrument host；It is received and is stored by pipe pressure Acquisition Instrument host
Pipe presses the pressure detection data of collector transmission, and the pressure detection data of storage is passed through long distance according to preset interval time
Monitor terminal is transmitted to from communication mode.The utility model is by allowing pipe to press Acquisition Instrument host and pipe that collector is pressed to adopt logical short distance
Communication mode connection, compared with the prior art, not only eliminates the cumbersome process of wiring, reduces installation difficulty, and can be by pipe
It presses Acquisition Instrument host to remove the explosion-proof area of gas ductwork, improves safety.Meanwhile the utility model realizes a pipe pressure
Acquisition Instrument host connects the purpose that multiple pipes press collector by short haul connection mode, and identical test point can largely be subtracted
The usage quantity of Acquisition Instrument host is pressed in education and correction for juvenile offenders, effectively reduces equipment cost.
As specific embodiment, as shown in Fig. 2, pipe pressure Acquisition Instrument host is equipped with governor circuit, governor circuit includes the
One microprocessor and the power interface circuit being connect respectively with first microprocessor, the first communication interface circuit, the second communication
Interface circuit and data storage circuitry, and the first communication interface circuit is made to connect the first wireless communication module, connect the second communication
Mouth the second wireless communication module of circuit connection.As shown in figure 11, pipe pressure collector is equipped with pressure acquisition circuit, pressure acquisition circuit
Battery interface circuit, third communication interface circuit and the pressure being connect including the second microprocessor and respectively with the second microprocessor
Force snesor interface circuit, and make battery interface circuit connection supplying cell, keep third communication interface circuit connection third wireless
Communication module makes pressure sensor interface circuit connection pressure sensor module.Wherein, the first communication interface circuit and third are logical
Letter interface circuit is short-range wireless communications interfaces circuit, and the first wireless communication module and third wireless communication module are short distance
Wireless communication module, the second communication interface circuit are long range wireless communication interface circuit, and the second wireless communication module is long distance
From wireless communication module.
As shown in figure 3, present embodiment allows first microprocessor using the single-chip microcontroller of model STM32F103C6
U1 has the characteristics that low energy consumption, performance is stable.Wherein, when the OSC_IN pin of single-chip microcontroller U1 and OSC_OUT pin are connected with
The VBAT pin of clock circuit, single-chip microcontroller U1 is connected with Clock battery.It should be noted that first microprocessor is not limited to using type
Number single-chip microcontroller for being STM32F103C6, can also be same to can be achieved using the microprocessor of other models with same function
The technical purpose of the utility model.As shown in figure 4, present embodiment allows power interface circuit to use Header3 type
The terminal 2 and terminal 3 of connector P1, connector P1 are grounded, and are made after the terminal 1 series diode D1 and fuse F1 of connector P1
For power interface circuit output end and be separately connected the first power supply circuit and the second power supply circuit, wherein the first power supply circuit
For the power supply of first microprocessor, the first communication interface circuit and data storage circuitry, the second power supply circuit is the second communication interface
Circuit power supply.In practical applications, by allowing connector P1 connection external power supply, the first power supply circuit and second can be passed through and supplied
Circuit power supply.External power supply can take the diversified forms such as battery, alternating current.
As specific embodiment, as shown in figure 5, the first power supply circuit uses the pressure regulation chip of model MC34063
U2.Wherein, the pin 1 of pressure regulation chip U2, pin 7 and pin 8 are connected with each other and connect after series resistance R1 with power interface circuit
It connects.The pin 6 of pressure regulation chip U2 is connect with power interface circuit, the pin 6 of pressure regulation chip U2 and capacitor C1 in parallel and capacitor
The common end of C2 connects, another common end grounding of capacitor C1 and capacitor C2.The pin 4 of pressure regulation chip U2 is grounded.Pressure regulation chip
It is grounded after the 3 series capacitance C3 of pin of U2.It is grounded after the 5 series resistance R2 of pin of pressure regulation chip U2, the pin 5 of pressure regulation chip U2
It is grounded after series resistance R3 and capacitor C4.It is grounded after the diode D2 of 2 series opposing of the pin setting of pressure regulation chip U2, pressure regulation core
It is grounded after the pin 2 series inductance L1 and capacitor C5 of piece U2.Line between resistance R3 and capacitor C4 take a little with inductance L1 and
Line connection between capacitor C5.Line between inductance L1 and capacitor C5 takes some output end as the first power supply circuit.
First power supply circuit has been also connected with voltage detecting circuit, in order to control.Voltage detecting circuit includes concatenated resistance R4 and electricity
R5 is hindered, the other end of resistance R4 is connect with the pin 6 of pressure regulation chip U2, the other end ground connection of resistance R5, resistance R4 and resistance R5
Between line take a little connect with the PB1/ADC_IN9/TIM3_CH4 pin of single-chip microcontroller U1.
As shown in fig. 6, the second power supply circuit uses the pressure regulation chip U3 of model LM22676-ADJ.Wherein, pressure regulation core
It is connect after the VIN pin series inductance L2 of piece U3 with power interface circuit.The SW pin series inductance L3 and electricity of pressure regulation chip U3
It is grounded after holding C6.Line between inductance L3 and capacitor C6 takes some output end as the second power supply circuit.Pressure regulation chip U3
VIN pin connect with the common end of in parallel capacitor C7, capacitor C8 and capacitor C9, capacitor C6, capacitor C8 and capacitor C9's is another
One common end grounding.It is connect after the VIN pin series resistance R6 of pressure regulation chip U3 with EN pin.Line between L3 and capacitor C6
It is connect after taking some series resistance R7 with the FB pin of pressure regulation chip U3.The FB pin series resistance R8 of pressure regulation chip U3 is followed by
Ground.It is grounded after the BOOT pin series capacitance C10 and oppositely arranged diode D3 of pressure regulation chip U3.Capacitor C10 and diode
Line between D3, which takes, a little to be connect with the SW pin of pressure regulation chip U3.The GND pin of pressure regulation chip U3 is grounded.As shown in fig. 7,
To control convenient for the output voltage to the second power supply circuit, and then the on-off electricity condition of the second communication interface circuit is controlled,
Present embodiment is also provided with first switch circuit.First switch circuit includes triode Q1, resistance R9 and resistance R10,
Wherein, it is connect after the base series resistor R9 of triode Q1 with the PB0/ADC_IN8/TIM3_CH3 pin of single-chip microcontroller U1, three poles
The collector of pipe Q1 is connect with the EN pin of pressure regulation chip U3, the emitter of triode Q1 ground connection, the both ends of resistance R10 it is corresponding with
The base stage of triode Q1 is connected with emitter.The utility model passes through the logical of the second communication interface circuit of first switch circuit control
Power-off can allow the second communication interface circuit to be run and communicated by the interval time of setting, and not as needed in actually using
Make its power-off when operation, energy consumption can be effectively reduced.
As shown in figure 8, the first communication interface circuit uses the mother row P2 of model MHDR1X8.Wherein, the end of mother P2 is arranged
Son 1 is connect with the output end of the first power supply circuit, and terminal 2, son 3, terminal 4, terminal 5, terminal 6 and the terminal 7 for arranging mother P2 are corresponding
PA8/TIM1_CH1/MCO pin, PB12/SPI2_NSS/TIM1_BKIN pin, PB13/SPI2_SCK/ with single-chip microcontroller U1
TIM1_CH1N pin, PB15/SPI2_MOSI/TIM1_CH3N pin, PB14/SPI2_MISO/TIM1_CH2N pin and
The terminal 8 of the connection of PA11/CANRX/USBDM/TIM1_CH4 pin, row mother P2 is grounded.It should be noted that this specific embodiment party
Formula allows the first communication interface circuit to use RF communication, and the first wireless communication module is using RF radio communication mold
Block, but it is not limited to this, the other forms such as the wireless, infrared radio of WIFI also can be used, as long as being able to achieve short-distance wireless communication
?.As shown in figure 9, the second communication interface circuit uses the connector P3 of Header4 type, wherein the terminal 1 of connector P3
It is connect with the output end of the second power supply circuit, the corresponding PA2/USART2_ with single-chip microcontroller U1 of the terminal 2 and terminal 3 of connector P3
TX/ADC_IN2/TIM2_CH3 pin is connected with PA3/USART2_RX/ADC_IN3/TIM2_CH4, and the terminal 4 of connector P3 connects
Ground.It should be pointed out that present embodiment allows the second communication interface circuit to use DTU communication, the second nothing
Line communication module is using DTU wireless communication module, and but it is not limited to this, can also use other long range wireless communication sides
Formula.
As shown in Figure 10, present embodiment allows data storage circuitry using the storage core of model AT45DBD41
Piece U4.Wherein, the PA7/SPI1_MOSI/ADC_IN7/TIM3_CH2 pin of the SI pin of storage chip U4 and single-chip microcontroller U1 connect
It connects.The SCK pin of storage chip U4 is connect with the PA5/SPI1_SCK/ADC_IN5 pin of single-chip microcontroller U1.Storage chip U4/
CS pin is connect with the PA4/SPI1_NSS/ADC_IN4 pin of single-chip microcontroller U1.The SD pin of storage chip U4 is with single-chip microcontroller U1's
The connection of PA6/SPI1_MISO/ADC_IN6/TIM3_CH1 pin.Storage chip U4 /PESET pin and resistance R11 in parallel,
Resistance R12, resistance R13 are connected with the common end of resistance R14, and the other end of resistance R11 is connect with the SI pin of storage chip U4,
The other end of resistance R12 is connect with the SCK pin of storage chip U4, the other end of resistance R13 and storage chip U4 /CS pin
Connection, the other end of resistance R14 are connect with the SD pin of storage chip U4.Storage chip U4 /PESET pin and first power supply
The output end of circuit connects.The VCC pin of storage chip U4 and the interconnection of/WP pin and the output end with the first power supply circuit
Connection.Storage chip U4 /WP pin series capacitance C11 after be grounded.Pressure detection data can be stored by data storage circuitry.
As specific embodiment, as shown in figure 12, the second microprocessor uses the monolithic of model MSP43OF149
Machine U5, and the XIN pin of single-chip microcontroller U5 and XOUT/TCLK pin is made to be correspondingly connected with the both ends of a crystal oscillator, has that low energy consumption, property
Can be stable the advantages of.It should be noted that the second microprocessor is not limited to the single-chip microcontroller using model MSP43OF149, also
It can be using the microprocessor of other models with same function, the technical purpose of same achievable the utility model.Such as figure
Shown in 13, battery interface circuit uses the connector P4 and connector S1 of Header2 type.Wherein, connector P4 connects for battery
Mouthful, connector S1 is power switch.The terminal 2 of connector P4 is grounded, by the terminal of the terminal 1 of connector P4 and connector S1
2 connections, and the terminal 1 of connector S1 is made to connect output end as battery interface circuit after fuse F2.As shown in figure 14, exist
The output end of battery interface circuit is provided with second switch circuit, to control the power on/off shape of pressure sensor interface circuit
State.In practical applications, pressure sensor interface circuit is allowed to run by the interval time of setting as needed, and when not running
Make its power-off, can effectively reduce energy consumption.Second switch circuit includes POMS pipe Q2, resistance R15 and resistance R16.Wherein, POMS is managed
The P1.4/SMCLK pin of single-chip microcontroller U5, source electrode and the battery interface electricity of POMS pipe Q2 are connected after the gate series resistance R15 of Q2
Road connection, the drain electrode and pressure sensor interface circuit connection of POMS pipe Q2, the corresponding source with POMS pipe Q2 in the both ends of resistance R16
Pole is connected with grid.
As shown in figure 15, pressure sensor interface circuit uses the connector P5 of Header3 type, wherein connector P5
Terminal 1 connect with the drain electrode of POMS pipe Q2, the terminal 2 of connector P5 is connect with the P6.1/A1 pin of single-chip microcontroller U5, connector
The terminal 3 of P5 is grounded.As shown in figure 16, pressure sensor module uses the structure type including silicon chip and balanced bridge,
Wherein, the resistance R17 of balanced bridge, resistance R18, resistance R19 and resistance R20 are formed by photoetching silicon chip, and make balance electricity
Bridging connects signal amplification circuit and A/D converter circuit, to amplify pressure detecting signal and to be converted to digital signal.Such as Figure 17
Shown, third communication interface circuit uses the mother row P6 of model MHDR1X8, wherein the terminal 1 and battery interface of row mother P6
Circuit connection arranges the corresponding P2.7/TA0 with single-chip microcontroller U5 of terminal 2, terminal 3, terminal 4, terminal 5, terminal 6 and terminal 7 of mother P6
Pin, P2.6/ADC12CLK pin, P2.5/Rosc pin, P2.4/CA1/TA2 pin, P2.3/CA0/TA1 pin and P2.2/
The terminal 8 of the connection of CAOUT/TA0 pin, row mother P6 is grounded.It should be noted that present embodiment allows third communication interface
Circuit uses RF communication, and third wireless communication module is using RF wireless communication module, and but it is not limited to this,
The other forms such as the wireless, infrared radio of WIFI also can be used, as long as being able to achieve short-distance wireless communication.Meanwhile it should also protect
It demonstrate,proves third wireless communication module and the first wireless communication module can short-distance wireless communication.
As shown in Figure 18 and Figure 19, present embodiment allows pressure acquisition circuit to be provided with temperature sensing circuit and programming
Interface circuit.It can detect the gas temperature in pipeline by temperature sensing circuit, enhance functional and practicability；Pass through programming
Interface circuit connects external programming module, and applicable operation program can be downloaded to the second microprocessor.Temperature sensing circuit uses
The temperature sensor U6 of model LM50CIM3X, wherein the DQ pin of temperature sensor U6 and the P6.5/A5 of single-chip microcontroller U5
Pin connects, and is grounded after the DQ pin series capacitance C12 of temperature sensor U6, and the VCC pin and POMS of temperature sensor U6 is managed
The drain electrode of Q2 connects, the GND pin ground connection of temperature sensor U6.Pass through the on-off of second switch circuit control temperature sensing circuit
Electricity condition can allow pressure sensor interface circuit to run by the interval time of setting, and not as needed in practical applications
Make its power-off when operation, energy consumption can be effectively reduced.Programming interface circuit is provided with JATAG interface, wherein the end of JATAG interface
The corresponding TDO/TDI pin with single-chip microcontroller U5 of sub- terminal 1, terminal 2, terminal 3, terminal 4 and terminal 6, TDI pin, TMS pin,
TCK pin is connected with RST/NMI pin, and the terminal 5 of JATAG interface is grounded.
Above embodiments are only the descriptions carried out to preferred embodiments of the present invention, are not asked to the utility model
Protection scope is asked to be defined, under the premise of not departing from the spirit of the design of the utility model, this field engineers and technicians' foundation
The various forms of deformations that the technical solution of the utility model is made should all fall into claims determination of the utility model
In protection scope.
Claims (9)
1. a kind of pipeline pressure acquisition system, which is characterized in that including monitor terminal, the monitor terminal passes through telecommunication
Mode is connected with multiple pipe pressure Acquisition Instrument hosts, each pipe pressure Acquisition Instrument host is connected with by short haul connection mode more
It is a to disperse the pipe being installed on pipeline pressure collector；The pipe pressure collector is used to detect the pressure in pipeline, and pressure is examined
Measured data sends pipe pressure Acquisition Instrument host to, and the pipe pressure Acquisition Instrument host is used to receive and the pressure of storage tube pressure collector transmission
Power detection data, and the pressure detection data of storage is sent to monitor terminal by the interval time of setting.
2. a kind of pipeline pressure acquisition system described in accordance with the claim 1, which is characterized in that the pipe pressure Acquisition Instrument host is set
Have a governor circuit, governor circuit include first microprocessor and the power interface circuit being connect respectively with first microprocessor,
First communication interface circuit, the second communication interface circuit and data storage circuitry, the first communication interface circuit are connected with the first nothing
Line communication module, the second communication interface circuit are connected with the second wireless communication module；The pipe pressure collector is equipped with pressure acquisition
Circuit, pressure acquisition circuit include the second microprocessor and the battery interface circuit connecting respectively with the second microprocessor,
Three communication interfaces circuit and pressure sensor interface circuit, battery interface circuit connection have supplying cell, third communication interface electricity
Road is connected with third wireless communication module, and pressure sensor interface circuit connection has pressure sensor module；Wherein, the first communication
Interface circuit and third communication interface circuit are short-range wireless communications interfaces circuit, and the first wireless communication module and third are wireless
Communication module is short-range wireless communication module, and the second communication interface circuit is long range wireless communication interface circuit, the second nothing
Line communication module is long range wireless communication module.
3. a kind of pipeline pressure acquisition system according to claim 2, which is characterized in that the first microprocessor includes
The OSC_IN pin and OSC_OUT pin of the single-chip microcontroller U1 of model STM32F103C6, single-chip microcontroller U1 are connected with clock circuit,
The VBAT pin of single-chip microcontroller U1 is connected with Clock battery；The power interface circuit includes the connector P1 of Header3 type, is patched
The terminal 2 and terminal 3 of part P1 is grounded, and is connected with the first power supply after the terminal 1 series diode D1 and fuse F1 of connector P1
Circuit and the second power supply circuit, the first power supply circuit are first microprocessor, the first communication interface circuit and data storage circuitry
Power supply, the second power supply circuit are the power supply of the second communication interface circuit.
4. a kind of pipeline pressure acquisition system described in accordance with the claim 3, which is characterized in that first power supply circuit includes
Pin 1, pin 7 and the pin 8 of the pressure regulation chip U2 of model MC34063, pressure regulation chip U2 are connected with each other and series resistance R1
Connect afterwards with power interface circuit, the pin 6 of pressure regulation chip U2 is connect with power interface circuit, the pin 6 of pressure regulation chip U2 with
Capacitor C1 in parallel is connected with the common end of capacitor C2, another common end grounding of capacitor C1 and capacitor C2, pressure regulation chip U2's
Pin 4 is grounded, and is grounded after the 3 series capacitance C3 of pin of pressure regulation chip U2, the 5 series resistance R2 of pin of pressure regulation chip U2 is followed by
Ground is grounded after the pin 5 series resistance R3 and capacitor C4 of pressure regulation chip U2,2 series opposing of the pin setting of pressure regulation chip U2
It is grounded, is grounded after the pin 2 series inductance L1 and capacitor C5 of pressure regulation chip U2, between resistance R3 and capacitor C4 after diode D2
Line take some line between inductance L1 and capacitor C5 connect, the line between inductance L1 and capacitor C5, which takes, is a little used as the
The output end of one power supply circuit；First power supply circuit is connected with voltage detecting circuit, and the voltage detecting circuit includes concatenated
The other end of resistance R4 and resistance R5, resistance R4 are connect with the pin 6 of pressure regulation chip U2, the other end ground connection of resistance R5, resistance
Line between R4 and resistance R5, which takes, a little to be connect with the PB1/ADC_IN9/TIM3_CH4 pin of single-chip microcontroller U1.
5. a kind of pipeline pressure acquisition system according to claim 4, which is characterized in that second power supply circuit includes
Connect after the VIN pin series inductance L2 of the pressure regulation chip U3 of model LM22676-ADJ, pressure regulation chip U3 with power interface circuit
It connects, is grounded after SW the pin series inductance L3 and capacitor C6 of pressure regulation chip U3, the line between inductance L3 and capacitor C6 takes a bit
Output end as the second power supply circuit；The public affairs of the VIN pin of pressure regulation chip U3 and capacitor C7 in parallel, capacitor C8 and capacitor C9
End connection altogether, another common end grounding of capacitor C6, capacitor C8 and capacitor C9, the VIN pin series resistance R6 of pressure regulation chip U3
It is connect afterwards with EN pin, the line between L3 and capacitor C6, which takes, to be connected with the FB pin of pressure regulation chip U3 after some series resistance R7
It connects, is grounded after the FB pin series resistance R8 of pressure regulation chip U3, the BOOT pin series capacitance C10 of pressure regulation chip U3 and reversely set
It being grounded after the diode D3 set, the line between capacitor C10 and diode D3, which takes, a little to be connect with the SW pin of pressure regulation chip U3,
The GND pin of pressure regulation chip U3 is grounded；Second power supply circuit is connected with first switch circuit, and the first switch circuit includes three
Pole pipe Q1, resistance R9 and resistance R10, the PB0/ADC_IN8/ after the base series resistor R9 of triode Q1 with single-chip microcontroller U1
The connection of TIM3_CH3 pin, the collector of triode Q1 are connect with the EN pin of pressure regulation chip U3, and the emitter of triode Q1 connects
The both ends correspondence on ground, resistance R10 is connect with the base stage of triode Q1 and emitter.
6. a kind of pipeline pressure acquisition system according to claim 5, which is characterized in that first communication interface circuit
Mother row P2 including model MHDR1X8, the terminal 1 of the mother row P2 are connect with the output end of the first power supply circuit, arrange mother P2
Terminal 2, the corresponding PA8/TIM1_CH1/MCO pin with single-chip microcontroller U1 of terminal 3, terminal 4, terminal 5, terminal 6 and terminal 7,
PB12/SPI2_NSS/TIM1_BKIN pin, PB13/SPI2_SCK/TIM1_CH1N pin, PB15/SPI2_MOSI/TIM1_
CH3N pin, PB14/SPI2_MISO/TIM1_CH2N pin are connected with PA11/CANRX/USBDM/TIM1_CH4 pin, and row is female
The terminal 8 of P2 is grounded；Second communication interface circuit includes the connector P3 of Header4 type, the terminal 1 of connector P3 and
The output end of two power supply circuits connects, the corresponding PA2/USART2_TX/ with single-chip microcontroller U1 of the terminal 2 and terminal 3 of connector P3
ADC_IN2/TIM2_CH3 pin is connected with PA3/USART2_RX/ADC_IN3/TIM2_CH4, and the terminal 4 of connector P3 is grounded；
The data storage circuitry includes the SI pin and monolithic of the storage chip U4, the storage chip U4 of model AT45DBD41
The PA7/SPI1_MOSI/ADC_IN7/TIM3_CH2 pin of machine U1 connects, and the SCK pin of storage chip U4 is with single-chip microcontroller U1's
The connection of PA5/SPI1_SCK/ADC_IN5 pin, storage chip U4 /PA4/SPI1_NSS/ADC_ of CS pin and single-chip microcontroller U1
The connection of IN4 pin, the SD pin of storage chip U4 and the PA6/SPI1_MISO/ADC_IN6/TIM3_CH1 pin of single-chip microcontroller U1
Connection, storage chip U4 /the common end company of PESET pin and resistance R11 in parallel, resistance R12, resistance R13 and resistance R14
It connects, the other end of resistance R11 is connect with the SI pin of storage chip U4, and the other end of resistance R12 and the SCK of storage chip U4 are managed
Foot connection, the other end of resistance R13 and storage chip U4 /CS pin connect, the other end of resistance R14 is with storage chip U4's
The connection of SD pin, storage chip U4 /PESET pin connect with the output end of the first power supply circuit, the VCC of storage chip U4 is managed
Foot and/WP pin are connected with each other and connect with the output end of the first power supply circuit, storage chip U4 /WP pin series capacitance
It is grounded after C11.
7. a kind of pipeline pressure acquisition system according to claim 2, which is characterized in that second microprocessor includes
The XIN pin and XOUT/TCLK pin of the single-chip microcontroller U5 of model MSP43OF149, single-chip microcontroller U5 are correspondingly connected with the two of a crystal oscillator
End；The battery interface circuit includes the connector P4 and connector S1 of Header2 type, and connector P4 is battery interface, is patched
Part S1 is power switch, and the terminal 2 of connector P4 is grounded, and the terminal 1 of connector P4 connect with the terminal 2 of connector S1, patches
Output end after the connection of the terminal 1 fuse F2 of part S1 as battery interface circuit；The output end of battery interface circuit is connected with
Second switch circuit, the second switch circuit include the gate series of POMS pipe Q2, resistance R15 and resistance R16, POMS pipe Q2
The P1.4/SMCLK pin of single-chip microcontroller U5, the source electrode and battery interface circuit connection of POMS pipe Q2, POMS pipe are connected after resistance R15
The both ends correspondence of the drain electrode and pressure sensor interface circuit connection of Q2, resistance R16 is connect with the source electrode of POMS pipe Q2 and grid.
8. a kind of pipeline pressure acquisition system according to claim 7, which is characterized in that the pressure sensor interface electricity
Road includes the connector P5 of Header3 type, and the terminal 1 of connector P5 is connect with the drain electrode of POMS pipe Q2, the terminal 2 of connector P5
It is connect with the P6.1/A1 pin of single-chip microcontroller U5, the terminal 3 of connector P5 is grounded；The pressure sensor module includes silicon chip
With the balanced bridge of setting on a silicon substrate, balanced bridge is constituted and is connected by resistance R17, resistance R18, resistance R19 and resistance R20
It is connected to signal amplification circuit and A/D converter circuit；The third communication interface circuit includes the mother row P6 of model MHDR1X8, row
The terminal 1 and battery interface circuit connection of female P6, terminal 2, terminal 3, terminal 4, terminal 5, terminal 6 and the terminal 7 for arranging mother P6 are right
Should with the P2.7/TA0 pin of single-chip microcontroller U5, P2.6/ADC12CLK pin, P2.5/Rosc pin, P2.4/CA1/TA2 pin,
P2.3/CA0/TA1 pin is connected with P2.2/CAOUT/TA0 pin, and the terminal 8 of row mother P6 is grounded.
9. a kind of pipeline pressure acquisition system according to claim 8, which is characterized in that the pressure acquisition circuit also wraps
Temperature sensing circuit and programming interface circuit are included, the temperature sensing circuit includes the temperature sensor of model LM50CIM3X
The DQ pin of U6, temperature sensor U6 are connect with the P6.5/A5 pin of single-chip microcontroller U5, the DQ pin series electrical of temperature sensor U6
It is grounded after holding C12, the VCC pin of temperature sensor U6 is connect with the drain electrode of POMS pipe Q2, and the GND pin of temperature sensor U6 connects
Ground；The programming interface circuit includes JATAG interface, terminal 1, terminal 2, terminal 3, terminal 4 and the terminal of JATAG interface
6 correspondences are connect with the TDO/TDI pin of single-chip microcontroller U5, TDI pin, TMS pin, TCK pin and RST/NMI pin, and JATAG connects
The terminal 5 of mouth is grounded.
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| CN201821368647.XU CN208796433U (en) | 2018-08-23 | 2018-08-23 | A kind of pipeline pressure acquisition system |
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| CN201821368647.XU CN208796433U (en) | 2018-08-23 | 2018-08-23 | A kind of pipeline pressure acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228575A (en) * | 2020-09-28 | 2021-01-15 | 广州燃气集团有限公司 | Indoor gas monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228575A (en) * | 2020-09-28 | 2021-01-15 | 广州燃气集团有限公司 | Indoor gas monitoring system |
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Address after: 102212 No. 1 Changcui Road, Cuicun Town, Changping District, Beijing Patentee after: Beijing Xinfengtai Gas Equipment Co.,Ltd. Address before: No. 1, Changcui Road, Cuicun Town, Changping District, Beijing 102500 Patentee before: BEIJING XINGUANGJIN GAS DEVICE Research Institute |