CN106759544A - A kind of pit retaining monitoring collector and system - Google Patents
A kind of pit retaining monitoring collector and system Download PDFInfo
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- CN106759544A CN106759544A CN201611245179.2A CN201611245179A CN106759544A CN 106759544 A CN106759544 A CN 106759544A CN 201611245179 A CN201611245179 A CN 201611245179A CN 106759544 A CN106759544 A CN 106759544A
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- photoelectrical coupler
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- acquisition module
- foundation ditch
- pit retaining
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention discloses a kind of pit retaining monitoring collector and system, including acquisition module, processing module and power module；Wherein, the acquisition module of the pit retaining monitoring collector is connected with the multiple sensors in foundation ditch；The processing module is used to receive acquisition instructions generation control signal, and sends to the acquisition module；The acquisition module is used to produce pumping signal to sensor described in foundation ditch corresponding according to the control signal, and gathers the detection signal of the sensor；The processing module is additionally operable to receive the detection signal that the acquisition module sends, and processes generation foundation ditch parameter letter；It is that the acquisition module and the processing module provide power supply signal that the power module is used for.A kind of pit retaining monitoring collector and system provided by the present invention, are capable of achieving efficient data monitoring, it is to avoid due to the error that hand-kept or manual conversion cause, it is ensured that the personal safety of survey crew, simple to operate, high precision, strong antijamming capability.
Description
Technical field
The present embodiments relate to field of measuring technique, more particularly to a kind of pit retaining monitoring collector and system.
Background technology
With developing rapidly for China's infrastructure, the deep-foundation pit engineering such as subway station, building construction basis builds also day
Benefit increases.In the work progress of deep-foundation pit engineering, the stability of its supporting construction just seems of crucial importance.In Modern Information
Under the guidance of construction concept, foundation pit supporting construction and the foundation ditch periphery soil body, construction of structures etc. are carried out the monitoring of real-time system into
To ensure the important means of deep pit monitor.Wherein be to the monitoring of supporting construction mostly important content in whole monitoring system it
One.Therefore, by the monitoring to axial force of the supports, the force-bearing situation supported in work progress can be in time grasped, while can also
The substantially anti-deformation for pushing away building enclosure (stake or wall etc.).Accurate measurements go out the size and its situation of change of axial force of the supports to whole
Individual Foundation Pit Construction just seems extremely important safely.
The conventional method to the monitoring of reinforced concrete support axle power is measured using manual site at present, by hand-held reading
Instrument is single to read type vibration wire Reinforcement Stress-count, measures the stress value of reinforcing bar, then manually calculates axial force of the supports.This kind of support shaft
Power metering system backwardness, monitored density and precision are many times all difficult to play the effect of foundation ditch axial force of the supports monitoring and warning.Tool
This mode mainly has the deficiency of three aspects, first aspect because foundation ditch axle power is typically all to be covered with whole foundation ditch week for body
Side, in-site measurement personnel are read, it is necessary to devote a tremendous amount of time, and this monitored density is going out one by one by hand-held readout instrument
The effect of timely early warning is not often reached when existing dangerous situation, and the safety of survey crew itself cannot be ensured.Second aspect, because
It is the difference of the personal professional skill of observation, the data for observing are very different；Man false data happens occasionally, the essence of data
Exactness cannot ensure, be that the analysis of scientific research and designer to foundation ditch axial force of the supports causes very big puzzlement with research；Observe
Support shaft force value is by hand-kept, manual conversion, and the probability for error occur is very big.The third aspect, often there is big around foundation ditch
Power apparatus work, and resulting interference is very big to the axial force of the supports reinforcing rib meter stress value stability influence of vibratory string class.
The content of the invention
The present invention provides a kind of pit retaining monitoring collector and system, inaccurate to solve foundation ditch axial force of the supports Monitoring Data
Problem.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of pit retaining monitoring collector, including acquisition module, processing module and power module；
Wherein, the acquisition module of the pit retaining monitoring collector is connected with the multiple sensors in foundation ditch；
The processing module is used to receive acquisition instructions generation control signal, and sends to the acquisition module；
The acquisition module is used to produce sensor described in foundation ditch corresponding in excitation letter according to the control signal
Number, and gather the detection signal of the sensor；
The processing module is additionally operable to receive the detection signal that the acquisition module sends, and processes generation foundation ditch ginseng
Number signal；
It is that the acquisition module and the processing module provide power supply signal that the power module is used for.
Further, in above-mentioned foundation ditch collector, the acquisition module includes：Channel selection circuit, selective frequency amplifier circuit
And excitation chain；
The channel selection circuit is used to control the selective frequency amplifier circuit and excitation chain according to the control signal
The sensor connection corresponding with foundation ditch；
The excitation chain is used for the string wire starting of oscillation of the sensor to being attached thereto；
The selective frequency amplifier circuit is used for the detection produced by the string wire starting of oscillation of the sensor that will be attached thereto
Signal is amplified filtering process.
Further, the foundation ditch collector, also includes：
Photoelectric isolation module, the photoelectric isolation module respectively with the channel selection circuit, the selective frequency amplifier circuit,
The excitation chain and the processing module are connected, for by the control signal and the detection signal carry out electrically every
From.
Further, in above-mentioned foundation ditch collector, the photoelectric isolation module include multiple first kind photoelectrical couplers,
One Second Type photoelectrical coupler and one the 3rd type photoelectrical coupler；The first kind photoelectrical coupler, Second Type
Photoelectrical coupler and the 3rd type light thermocouple include Light-Emitting Diode, phototriode and pull-up resistor；
Wherein, the input of the light emitting diode in the first kind photoelectrical coupler connects with the processing module
Connect；The output end of the light emitting diode in the first kind photoelectrical coupler is connected with digital circuit ground end；It is described
The emitter stage of the phototriode in first kind photoelectrical coupler is connected with analog circuit earth terminal；The first kind
The collection of the phototriode in described pull-up resistor one end in photoelectrical coupler and the first kind photoelectrical coupler
Electrode is connected；The other end of the pull-up resistor in the first kind photoelectrical coupler connects with the channel selection circuit
Connect；
The input of the light emitting diode in the Second Type photoelectrical coupler connects with the selective frequency amplifier circuit
Connect；The output end of the light emitting diode in the Second Type photoelectrical coupler is connected with analog circuit earth terminal；It is described
The emitter stage of the phototriode in Second Type photoelectrical coupler is connected with digital circuit ground end；The Second Type
The collection of the phototriode in described pull-up resistor one end in photoelectrical coupler and the Second Type photoelectrical coupler
Electrode is connected；The other end of the pull-up resistor in the Second Type photoelectrical coupler is connected with the processing module；
The input of the light emitting diode in the 3rd type photoelectrical coupler is connected with the processing module；Institute
The output end for stating the light emitting diode in the 3rd type photoelectrical coupler is connected with digital circuit ground end；3rd class
The emitter stage of the phototriode in type photoelectrical coupler is connected with analog circuit earth terminal；The 3rd type light thermocouple
The colelctor electrode of the phototriode in described pull-up resistor one end in clutch and the 3rd type photoelectrical coupler connects
Connect；The other end of the pull-up resistor in the 3rd type photoelectrical coupler is connected with the excitation chain.
Further, in above-mentioned foundation ditch collector, the power module includes：Main power source and power isolation module；
The main power source is connected with external power source holding wire, the power isolation module and the processing module respectively；
The power isolation module is also connected with the acquisition module, for power supply signal that the main power source is provided with
External power source signal isolation.
Further, in above-mentioned foundation ditch collector, the power isolation module include isolated from power chip, the power supply every
Off-chip piece includes positive voltage output end, negative voltage output end, analog circuit earth terminal, target voltage input, device ground end；
Wherein, the positive voltage output end is connected with the acquisition module；
The negative voltage output end is connected with the acquisition module；
The target voltage input is connected with the main power source.
Further, in above-mentioned foundation ditch collector, the processing module includes：
Processing unit, interface unit, memory cell and digital power；
The processing unit is used to receive the detection signal that the acquisition module sends, and processes generation foundation ditch parameter
Signal；
The interface unit is connected with external bus, for the foundation ditch parameter signal to be sent to the acquisition instructions
Sender；
The memory cell, for storing the foundation ditch parameter signal；
The digital power is connected with the processing unit, the interface unit and the memory cell respectively, is used for
For the processing unit, the interface unit and the memory cell provide operating voltage.
Further, in above-mentioned foundation ditch collector, the channel selection circuit includes channel selecting chip；The passage choosing
Selecting chip includes control signal input, public input；
Wherein, the light of the control signal input and first kind photoelectrical coupler in the photoelectric isolation module
The colelctor electrode connection of quick triode；
The public input is connected with the excitation chain, the selective frequency amplifier circuit；
Further, in above-mentioned foundation ditch collector, the detection signal includes power frequency value, the foundation ditch parameter signal
Including support shaft force value.
The embodiment of the present invention also provides a kind of pit retaining monitoring system, including the pit retaining monitoring collector described in any of the above-described
With the multiple sensors in foundation ditch.
A kind of pit retaining monitoring collector provided in an embodiment of the present invention and system, it is possible to achieve efficient data prison
Survey, it is to avoid due to the error that hand-kept or manual conversion cause, it is ensured that the personal safety of survey crew and simple to operate,
High precision, strong antijamming capability.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of overall structure block diagram of pit retaining monitoring collector that the embodiment of the present invention one is provided；
Fig. 2 is a kind of overall structure block diagram of pit retaining monitoring collector that the embodiment of the present invention two is provided；
Fig. 3 is a kind of physical circuit figure of photoelectric isolation module that the embodiment of the present invention two is provided；
Fig. 4 is a kind of physical circuit figure of power isolation module that the embodiment of the present invention two is provided；
Fig. 5 is a kind of physical circuit figure of channel selection circuit that the embodiment of the present invention two is provided；
Fig. 6 is a kind of overall structure block diagram of pit retaining monitoring system that the embodiment of the present invention three is provided.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part rather than entire infrastructure related to the present invention is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of overall structure block diagram of pit retaining monitoring collector that the embodiment of the present invention one is provided.As shown in figure 1,
The embodiment of the present invention provides a kind of pit retaining monitoring collector, by controlling the collection of multichannel and eliminating people in gatherer process
It is error and environmental disturbances, it is possible to achieve the data monitoring of high efficiency and high precision.
The pit retaining monitoring collector includes：Acquisition module 10, processing module 20 and power module 30；
Wherein, the acquisition module 10 of the pit retaining monitoring collector is connected with the multiple sensors in foundation ditch；
The processing module 20 is used to receive acquisition instructions generation control signal, and sends to the acquisition module 10；
The acquisition module 10 is used to produce excitation to sensor described in foundation ditch corresponding according to the control signal
Signal, and gather the detection signal of the sensor；
The processing module 20 is additionally operable to receive the detection signal of the transmission of the acquisition module 10, and processes generation base
Hole parameter signal.
The power module 30 is used to be that the acquisition module 10 and the processing module 20 provide power supply signal.
Acquisition module is connected with the multiple sensors in foundation ditch in the embodiment of the present invention, and acquisition module can be believed according to control
Number corresponding sensor of selection, then produces pumping signal to the sensor, and gathers the detection signal of the sensor, therefore can
Switch the gating of each sensor and acquisition module with the control signal sent according to processor, realize different sensors with collection mould
The passage switching of block.Therefore pit retaining monitoring collector can be arranged on a fixed position of foundation ditch, or survey crew can be with
The hand-held pit retaining monitoring collector of home, base is read without survey crew one by one by hand-held pit retaining monitoring collector at the scene
Sensing data in hole, so the safety of survey crew itself on the one hand can be ensured, on the other hand, improves data acquisition
Efficiency.
Optionally, the acquisition module includes：Channel selection circuit 11, selective frequency amplifier circuit 12 and excitation chain 13.
The channel selection circuit 11 be used for according to the control signal control the selective frequency amplifier circuit 12 and excitation chain 13 with
The corresponding sensor connection in foundation ditch；The string wire that the excitation chain 13 is used for the sensor to being attached thereto rises
Shake；The selective frequency amplifier circuit 12 is used for the detection signal produced by the string wire starting of oscillation of the sensor that will be attached thereto
It is amplified filtering process.
Wherein, the sensor can be vibrating wire sensor, such as including Reinforcement Stress-count.The described of the collector is adopted
Collection module is connected with the multiple vibrating wire sensors in foundation ditch by wired mode, to realize the collection of multichannel vibratory string signal.
Optionally, detection signal described in above-described embodiment includes power frequency value.Such as string wire in vibrating wire sensor
Starting of oscillation after pumping signal is received, faint string wire vibration is converted into size by the coil that shakes of the inspection in vibrating wire sensor again afterwards
The current signal of change, because string wire vibration intrinsic frequency only with itself is related, so the electricity that inspection is shaken accessed by coil
The change frequency for flowing signal is equal to the vibration frequency of string wire.Optionally, above-mentioned foundation ditch parameter signal includes support shaft force value.Treatment
Module can calculate the frequency size of the detection signal of sensor, and relevant parameter is coordinated further according to the operational formula for prestoring,
Calculate the corresponding foundation ditch parameter signal of detection signal of the sensor.Foundation ditch parameter signal is physical quantity directly perceived such as support shaft
Force value, strain or pressure etc..Directly the foundation ditch that detection signal is processed into physical quantity directly perceived is joined by using the processing module
The situation that number signal can avoid the result data caused due to survey crew's hand-kept or manual conversion and have larger error is sent out
It is raw.
Embodiment two
Fig. 2 is a kind of overall structure block diagram of pit retaining monitoring collector that the embodiment of the present invention two is provided.Referring to Fig. 2, institute
Stating pit retaining monitoring collector includes：Acquisition module 10, processing module 20, power module 30 and photoelectric isolation module 40.The light
Electric isolution module 40 respectively with acquisition module 10 in the channel selection circuit 11, the selective frequency amplifier circuit 12, it is described swash
Shake circuit 13 and the processing module 30 is connected, for the control signal and the detection signal to be carried out into electrical isolation.
It should be noted that because the circuit in acquisition module is analog circuit, the circuit in processing module is numeral electricity
Road, by increasing photoelectric isolation module, can prevent interference of the digital circuit to analog circuit, the frequency detecting for making it is more accurate and
Stabilization.
Optionally, the power module 30 includes：Main power source 31 and power isolation module 32.The main power source 31 respectively with
External power source holding wire, the power isolation module 32 and the processing module 20 are connected；The power isolation module 32 is also
It is connected with the acquisition module 10, for the power supply signal and the external power source signal isolation that provide the main power source 31.
It should be noted that being powered by outside D/C power by the main power source, then collector is converted into by DC-DC again
The operating voltage (such as 5V) of needs.Referring to Fig. 2, the power isolation module 32 also respectively with the acquisition module 10 in institute
Channel selection circuit 11, selective frequency amplifier circuit 12 and excitation chain 13 is stated to connect.
Optionally, the processing module 20 includes：Processing unit 21, interface unit 22, memory cell 23 and digital power
24.The processing unit 21 is used to receive the detection signal of the transmission of the acquisition module 10, and processes generation foundation ditch parameter
Signal；The interface unit 22 is connected with external bus, for the foundation ditch parameter signal to be sent to the acquisition instructions
Sender；The memory cell 23, for storing the foundation ditch parameter signal.The digital power 24 is single with the treatment respectively
The unit 21, interface unit 22 and the memory cell 23 are connected, for being the processing unit 21, the interface unit 22
And the memory cell 23 provides operating voltage.
Optionally, the interface unit can be 485 interfaces, be connected with external bus, realize data transmit-receive.The storage
Unit can store result data and related parameter information (the calculating public affairs of reinforcing rib meter stress value and axial force of the supports that measurement is obtained
Formula is demarcated in memory cell, is called by the processing unit).Preferably, high-capacity flash memory memory is selected, can be stored
The data of more multichannel, are effective extension of passage, there is provided reliable storage basis.The interface unit of the collector with
External bus can be connected by wired or wireless communication mode, it is possible to achieve to the site safety position of foundation ditch parameter signal
The wireless remote control collection of wired collection and long range.The digital power is powered by main power source, then is converted to treatment list through DC-DC
The digital circuits such as unit, memory and interface unit provide operating voltage.
Fig. 3 is a kind of physical circuit figure of photoelectric isolation module that the embodiment of the present invention two is provided, referring to Fig. 3, the light
Electric isolution module 40 includes multiple first kind photoelectrical couplers 41, a Second Type photoelectrical coupler 42 and one the 3rd type
Photoelectrical coupler 43；The first kind photoelectrical coupler 41, the type light thermocouple of Second Type photoelectrical coupler 42 and the 3rd
43 include Light-Emitting Diode, phototriode and pull-up resistor.
Wherein, the input and the processing module of the light emitting diode in the first kind photoelectrical coupler 41
Connection；The output end of the light emitting diode in the first kind photoelectrical coupler 41 is connected with digital circuit ground end；
The emitter stage of the phototriode in the first kind photoelectrical coupler 41 is connected with analog circuit earth terminal；Described
It is described photosensitive in described pull-up resistor one end in one type photoelectrical coupler 41 and the first kind photoelectrical coupler 41
The colelctor electrode connection of triode；The other end of the pull-up resistor in the first kind photoelectrical coupler 41 and the passage
Selection circuit is connected；
The input of the light emitting diode in the Second Type photoelectrical coupler 42 and the selective frequency amplifier circuit
Connection；The output end of the light emitting diode in the Second Type photoelectrical coupler 42 is connected with analog circuit earth terminal；
The emitter stage of the phototriode in the Second Type photoelectrical coupler 42 is connected with digital circuit ground end；Described
It is described photosensitive in described pull-up resistor one end in two type photoelectrical couplers 42 and the Second Type photoelectrical coupler 42
The colelctor electrode connection of triode；The other end of the pull-up resistor in the Second Type photoelectrical coupler 42 and the treatment
Module is connected；
The input of the light emitting diode in the 3rd type photoelectrical coupler 43 is connected with the processing module；
The output end of the light emitting diode in the 3rd type photoelectrical coupler 43 is connected with digital circuit ground end；Described
The emitter stage of the phototriode in three type photoelectrical couplers 43 is connected with analog circuit earth terminal；3rd type
The phototriode in described pull-up resistor one end in photoelectrical coupler 43 and the 3rd type photoelectrical coupler 43
Colelctor electrode connection；The other end of the pull-up resistor in the 3rd type photoelectrical coupler 43 connects with the excitation chain
Connect.
It should be noted that any type of photoelectrical coupler is by light-emitting component (light emitting diode) and light unit
Part (phototriode) is combined, and the electric signal of input drives light emitting diode, is allowed to send the light of certain wavelength, by light
Quick triode is received and produces photoelectric current, then is exported after further amplifying.The conversion of electrical-optical-electrical is completed, so as to play
Input, output, the effect of isolation, make input and output electrically be entirely isolated.
Input PIC0out, PIC1out and PIC2out pipe of light emitting diode in the first kind photoelectrical coupler
Pin is connected from the different pins of processing unit in processing module, the output of light emitting diode in the first kind photoelectrical coupler
End DGND pins are all connected with digitally；In the first kind photoelectrical coupler colelctor electrode PIC0, PIC1 of phototriode and
PIC2 pins are connected pull-up resistor R141, R142 and R143 respectively, are then connected from the different pins of channel selection circuit, described
The emitter stage AGND pins of phototriode are all connected with simulation ground in first kind photoelectrical coupler.The first kind light thermocouple
Clutch is multiple, for example, can be 3 (as shown in Figure 3), and the switching of 8 passages of control accesses different vibrating wire sensors.Need
It is noted that those skilled in the art can set first kind light on the basis of present inventive concept according to product demand
The number of electric coupler, the embodiment of the present invention is not limited the quantity of first kind photoelectrical coupler.
The input CE pins of light emitting diode are managed with the CE of selective frequency amplifier circuit in the Second Type photoelectrical coupler
Pin is connected, the output terminals A GND pins connection simulation ground of light emitting diode in the Second Type photoelectrical coupler；Described second
Colelctor electrode CEin pins one pull-up resistor R144 of series connection of phototriode in type photoelectrical coupler, then with processing module
The pin of middle processing unit is connected, the emitter stage DGND pins connection number of phototriode in the Second Type photoelectrical coupler
Word circuit ground end.
Process single in the input PZout pins of light emitting diode and processing module in the 3rd type photoelectrical coupler
The pin connection of unit, the output end DGND pins connection digital circuit of light emitting diode connects in the 3rd type photoelectrical coupler
Ground terminal；Colelctor electrode PZ pins one pull-up resistor R151 of series connection of phototriode in the 3rd type photoelectrical coupler, so
It is connected with the pin of excitation chain afterwards, the emitter stage AGND connection simulations of phototriode in the 3rd type photoelectrical coupler
Circuit ground end.
It should be noted that operating voltages of the setting+5V exemplary in Fig. 3 for channel selection circuit；+ 3.3V is treatment
The operating voltage of module；+ 5V is the operating voltage of excitation chain.
Fig. 4 is a kind of physical circuit figure of power isolation module that the embodiment of the present invention two is provided, the isolated from power mould
Block 32 includes that isolated from power chip U12, the isolated from power chip U12 include that positive voltage output end+5V pins, negative voltage are exported
Hold -5V pins, analog circuit earth terminal AGND pins, target voltage input Vin+ pins, device ground end VIN- pins；
Wherein, the positive voltage output end+5V pins and the negative voltage output end -5V pins respectively with the collection
The different pins connection of module, analog circuit earth terminal AGND pins connection simulation circuit ground end AGND；The target voltage
Input Vin+ pins are connected with the pin of the main power source, and device ground end VIN- pins connect common ground GND.
It should be noted that because the power frequency for often having powerful device work, electromagnetic radiation or civil power around foundation ditch is done
Disturb, the power supply in original distribution system can be interfered, especially analog circuit poor anti jamming capability, thus by increase every
From power supply chip, the working power of artificial circuit part in collector can be isolated from original distribution system.
Fig. 5 is a kind of physical circuit figure of channel selection circuit that the embodiment of the present invention two is provided, the channel selecting electricity
Road 11 includes channel selecting chip U8；The channel selecting chip U8 includes control signal input A0, A1 and A2 pins, public
Input COM pins；Wherein, control signal input A0, A1 and A2 pins respectively with the photoelectric isolation module 40 in
Colelctor electrode PIC0, PIC1 and PIC2 pin connection of the phototriode of first kind photoelectrical coupler 41；It is described public
Input COM pins are connected with the pin of the excitation chain 13 and the pin of the selective frequency amplifier circuit 12.
The channel selecting chip U8 also includes positive voltage input V+ pins and negative voltage input V- pins；It is described just
Voltage input end V+ pins are connected with the positive voltage output end+5V pins of the isolated from power chip U12；The negative voltage input
End V- pins are connected with the negative voltage output end -5V pins of the isolated from power chip U12；GND pins connection analog circuit connects
Ground terminal.
The channel selecting chip U8 is connect by control signal input A0, A1 and A2 pins (three passages switch pin)
The control signal of processing unit in the processing module is received, further according to the control signal control public input COM pipes
Pin is switched on NO1 to the NO8 pins being connected with eight sensors respectively, realizes the switching of signalling channel.Lead to for different
Road, there is provided corresponding globally unique ID, by ID, we can distinguish different passages and different collectors.
A kind of pit retaining monitoring collector provided in an embodiment of the present invention, by controlling the collection of multichannel and eliminating collection
During human error and environmental disturbances, it is possible to achieve the data monitoring of high efficiency and high precision, simple to operate, anti-interference energy
Power is strong, and without survey crew's on-site land survey, it is ensured that the personal safety of survey crew.
Embodiment three
Fig. 6 is referred to, is a kind of overall structure block diagram of pit retaining monitoring system that the embodiment of the present invention three is provided, the system
The pit retaining monitoring collector M2 provided including any embodiment of the present invention and multiple sensor M1 in foundation ditch.Due to this hair
Pit retaining monitoring system described in bright embodiment includes the pit retaining monitoring collector described in above-described embodiment, its know-why and generation
Technique effect it is similar with above-mentioned pit retaining monitoring collector, therefore possess the beneficial effect same with above-mentioned pit retaining monitoring collector
Really.The multiple sensor is positioned in foundation ditch scene, and survey crew is using the pit retaining monitoring collector by wired or nothing
Line communication mode is connected with the multiple sensor, realizes the changeable remote pit retaining monitoring of multichannel, then by wired or nothing
Line communication mode by monitoring result data is activation to the whole monitoring process of external bus, because survey crew is not involved in monitoring number
According to collection and monitoring result calculating, it is possible to achieve efficient data monitoring, it is to avoid due to hand-kept or manually change
The error for causing, it is ensured that the personal safety of survey crew, and simple to operate, high precision, strong antijamming capability.
It should be noted that the embodiment of the present invention provides pit retaining monitoring system can also include that other are used to support that foundation ditch is supervised
The circuit and device of examining system normal work, for example can also be including external bus M3 and external power source holding wire M4 etc..
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of pit retaining monitoring collector, it is characterised in that including：Acquisition module, processing module and power module；
Wherein, the acquisition module of the pit retaining monitoring collector is connected with the multiple sensors in foundation ditch；
The processing module is used to receive acquisition instructions generation control signal, and sends to the acquisition module；
The acquisition module is used to produce sensor described in foundation ditch corresponding a pumping signal according to the control signal, and
Gather the detection signal of the sensor；
The processing module is additionally operable to receive the detection signal that the acquisition module sends, and processes generation foundation ditch parameter letter
Number；
It is that the acquisition module and the processing module provide power supply signal that the power module is used for.
2. pit retaining monitoring collector according to claim 1, it is characterised in that the acquisition module includes：Channel selecting
Circuit, selective frequency amplifier circuit and excitation chain；
The channel selection circuit is used to control the selective frequency amplifier circuit and excitation chain and base according to the control signal
The corresponding sensor connection in hole；
The excitation chain is used for the string wire starting of oscillation of the sensor to being attached thereto；
The selective frequency amplifier circuit is used for the detection signal produced by the string wire starting of oscillation of the sensor that will be attached thereto
It is amplified filtering process.
3. pit retaining monitoring collector according to claim 2, it is characterised in that also include：
Photoelectric isolation module, the photoelectric isolation module respectively with the channel selection circuit, selective frequency amplifier circuit, described
Excitation chain and the processing module are connected, for the control signal and the detection signal to be carried out into electrical isolation.
4. pit retaining monitoring collector according to claim 3, it is characterised in that the photoelectric isolation module includes multiple the
One type photoelectrical coupler, a Second Type photoelectrical coupler and one the 3rd type photoelectrical coupler；The first kind light
Electric coupler, Second Type photoelectrical coupler and the 3rd type light thermocouple include Light-Emitting Diode, phototriode and on
Pull-up resistor；
Wherein, the input of the light emitting diode in the first kind photoelectrical coupler is connected with the processing module；
The output end of the light emitting diode in the first kind photoelectrical coupler is connected with digital circuit ground end；Described first
The emitter stage of the phototriode in type photoelectrical coupler is connected with analog circuit earth terminal；The first kind photoelectricity
The colelctor electrode of the phototriode in described pull-up resistor one end in coupler and the first kind photoelectrical coupler
Connection；The other end of the pull-up resistor in the first kind photoelectrical coupler is connected with the channel selection circuit；
The input of the light emitting diode in the Second Type photoelectrical coupler is connected with the selective frequency amplifier circuit；Institute
The output end for stating the light emitting diode in Second Type photoelectrical coupler is connected with analog circuit earth terminal；The Equations of The Second Kind
The emitter stage of the phototriode in type photoelectrical coupler is connected with digital circuit ground end；The Second Type light thermocouple
The colelctor electrode of the phototriode in described pull-up resistor one end in clutch and the Second Type photoelectrical coupler connects
Connect；The other end of the pull-up resistor in the Second Type photoelectrical coupler is connected with the processing module；
The input of the light emitting diode in the 3rd type photoelectrical coupler is connected with the processing module；Described
The output end of the light emitting diode in three type photoelectrical couplers is connected with digital circuit ground end；3rd type light
The emitter stage of the phototriode in electric coupler is connected with analog circuit earth terminal；The 3rd type photoelectrical coupler
In described pull-up resistor one end be connected with the colelctor electrode of the phototriode in the 3rd type photoelectrical coupler；Institute
The other end for stating the pull-up resistor in the 3rd type photoelectrical coupler is connected with the excitation chain.
5. pit retaining monitoring collector according to claim 1, it is characterised in that the power module includes：Main power source and
Power isolation module；
The main power source is connected with external power source holding wire, the power isolation module and the processing module respectively；
The power isolation module is also connected with the acquisition module, for the power supply signal and the outside that provide the main power source
Power supply signal is isolated.
6. pit retaining monitoring collector according to claim 5, it is characterised in that the power isolation module include power supply every
Off-chip piece, the isolated from power chip includes positive voltage output end, negative voltage output end, analog circuit earth terminal, target voltage
Input, device ground end；
Wherein, the positive voltage output end is connected with the acquisition module；
The negative voltage output end is connected with the acquisition module；
The target voltage input is connected with the main power source.
7. pit retaining monitoring collector according to claim 1, it is characterised in that the processing module includes：
Processing unit, interface unit, memory cell and digital power；
The processing unit is used to receive the detection signal that the acquisition module sends, and processes generation foundation ditch parameter letter
Number；
The interface unit is connected with external bus, for the foundation ditch parameter signal to be sent to the transmission of the acquisition instructions
Side；
The memory cell, for storing the foundation ditch parameter signal；
The digital power is connected with the processing unit, the interface unit and the memory cell respectively, for being institute
State processing unit, the interface unit and the memory cell and operating voltage is provided.
8. pit retaining monitoring collector according to claim 4, it is characterised in that the channel selection circuit includes passage choosing
Select chip；The channel selecting chip includes control signal input, public input；
Wherein, the control signal input and described photosensitive three of first kind photoelectrical coupler in the photoelectric isolation module
The colelctor electrode connection of pole pipe；
The public input is connected with the excitation chain, the selective frequency amplifier circuit.
9. pit retaining monitoring collector according to claim 1, it is characterised in that the detection signal includes power frequency
Value, the foundation ditch parameter signal includes support shaft force value.
10. a kind of pit retaining monitoring system, it is characterised in that including：
Pit retaining monitoring collector any one of claim 1-9 and the multiple sensors in foundation ditch.
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| CN201611245179.2A CN106759544B (en) | 2016-12-29 | 2016-12-29 | A kind of pit retaining monitoring collector and system |
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| CN201611245179.2A CN106759544B (en) | 2016-12-29 | 2016-12-29 | A kind of pit retaining monitoring collector and system |
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| CN106759544B CN106759544B (en) | 2019-07-30 |
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| CN111812179A (en) * | 2020-07-21 | 2020-10-23 | 徽弘(中山)智能设备科技中心 | Concrete sensor's drive detection circuitry and check out test set |
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| CN106759544B (en) | 2019-07-30 |
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