CN106018952A - Elevator room multi-functional watt-hour meter - Google Patents
Elevator room multi-functional watt-hour meter Download PDFInfo
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- CN106018952A CN106018952A CN201610296533.8A CN201610296533A CN106018952A CN 106018952 A CN106018952 A CN 106018952A CN 201610296533 A CN201610296533 A CN 201610296533A CN 106018952 A CN106018952 A CN 106018952A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
Abstract
The invention relates to an elevator room multi-functional watt-hour meter which comprises a smoke detecting device, an image collecting device, an image recognizing device, a power detecting device and a main control device. The smoke detecting device is used for detecting smoke in the elevator room of the watt-hour meter. The image collecting device and the image recognizing device are combined to determine flame in the elevator room of the watt-hour meter. The power detecting device is used for detecting power output by power frequency alternating current. The main control device is connected with the smoke detecting device, the image collecting device, the image recognizing device and the power detecting device. According to the invention, power detecting and fire recognizing and alarm can be simultaneously realized.
Description
The present invention be Application No. 201610184919X, filing date on March 28th, 2016,
The divisional application of the patent of invention entitled " escalator multifunctional electric energy meter ".
Technical field
The present invention relates to electric energy meter field, particularly relate to a kind of escalator multifunctional electric energy meter.
Background technology
The current main product of electric energy meter industry, in the world already at Rapid development stage, belongs to
Chaoyang industry, the whole world includes that developed economies and developing country are all in the renewal carrying out electric energy meter
Regenerate, to adapt to the change of current All Around The World situation.One is global energy-saving and emission-reduction requirement,
The accurate measurement of energy must be carried out, promote that each electricity consumption main body carries out electricity consumption according to the change of energy
Control, change consumption habit；Two is to adapt to Management of Electrical Enterprise modernization, informationalized requirement,
By intelligent electric energy meter as a node of electrical network, can fast and effeciently understand power consumer,
The electricity consumption real-time condition of the measurement points such as transformer station, it is provided that more accurate service and management.
Inside residential building, the electric energy meter at each family is generally located on people and waits the elevator of elevator
In, but, in the prior art, the electric energy meter in escalator still suffers from following defect: (1)
High to the measurement structure redundancy of electric energy, measurement effect is the best；(2) independent public set is occupied
Standby position, itself also has the space of other detection equipment integrated, such as, joins the environment of escalator
Number detection, especially detects the fire condition of escalator.
Accordingly, it would be desirable to a kind of new electric energy meter, the measuring machine to the electric energy meter of existing escalator
System is optimized, and meanwhile, the fire detection equipment of escalator will be integrated into the equipment of electric energy meter
In space, while improving the performance of electric energy meter, empty further with limited common equipment
Between, complete the accurate detection of more parameters.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of escalator multifunctional electric energy meter, right
The electric energy meter of escalator carries out structure of modification, improves the detection essence of the electrical energy parameter to supply line
Degree, it is of particular importance that by introducing smoke detection apparatus, image capture device, image knowledge
Other equipment carries out comprehensive detection to the fire conditions in the escalator of place, thus has expanded escalator
The function of electric energy meter.
According to an aspect of the present invention, it is provided that a kind of escalator multifunctional electric energy meter, including cigarette
Mist detection equipment, image capture device, image recognition apparatus, electric energy detection equipment and master control set
Standby, smoke detection apparatus smoke condition in the current escalator detecting electric energy meter place,
Image capture device and image recognition apparatus joint operation, for determining the current of electric energy meter place
Flame conditions in escalator, electric energy detection equipment is used for detecting the electric energy of industrial-frequency alternating current output,
Main control device and smoke detection apparatus, image capture device, image recognition apparatus and electric energy detection
Equipment connects respectively.
More specifically, in described escalator multifunctional electric energy meter, including: smoke detection apparatus,
Be arranged on the current escalator at electric energy meter place, including relay indicating light, signal output interface,
Currents match testing circuit, internal ionization room and outer ionization chamber, internal ionization room and outer ionization indoor are all
Placed radioactive source americium 241, radioactive source americium 241 ionization produces negative ions, at electric field action
Each move to positive and negative electrode down, in the case of there is no smog, internal ionization room and outer ionization chamber
Electric current be coupling, when exist smog invade outer ionization chamber time, internal ionization room and outer ionization chamber
Electric current do not mate, currents match testing circuit respectively with signal output interface, internal ionization room and
Outer ionization chamber connects, and when electric current internal ionization room and outer ionization chamber being detected does not mates, controls
Signal output interface sends smog alarm signal, when internal ionization room and the electricity of outer ionization chamber being detected
During stream coupling, control signal output interface sends environment normal signal；Cmos image sensor,
It is arranged on the current escalator at electric energy meter place, for shooting current escalator to obtain
High definition escalator image；Complexity detection equipment, is connected with cmos image sensor, uses
In receiving high definition escalator image, and it is complicated to calculate and export image based on high definition escalator image
Degree；Gray scale converting apparatus, is connected with cmos image sensor, is used for receiving high definition elevator
Between image, for each pixel in high definition escalator image, extract its R, G, B
Three Color Channel components, to R, G, B tri-Color Channel component give different weighted value with
It is weighted average, to obtain corresponding gray value, the gray value composition gray scale of all pixels
Change image, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59
With 0.11；Image filtering equipment, is connected with complexity detection equipment and gray scale converting apparatus respectively,
For determining the filtering strategies of selection based on image complexity, when image complexity is in default complexity
Time below degree range lower limit, select gaussian filtering strategy that gray level image is filtered, work as figure
During as complexity more than default complexity range limit, select mean filter strategy to gray processing
Image is filtered, and when image complexity is within default complexity scope, selects intermediate value filter
Gray level image is filtered by ripple strategy；Overall situation binarizing apparatus, detects with complexity respectively
Equipment and image filtering equipment connect, for determining overall situation binary-state threshold based on image complexity
Determination strategy, determine the overall situation binary-state threshold after, use the overall situation binary-state threshold by ash
Degreeization image carries out binary conversion treatment so that the pixel value of the binary image after process only has 0
Or 255 these two kinds selections, the determination of overall situation binary-state threshold is wherein determined based on image complexity
Strategy specifically includes: when image complexity is below default complexity range lower limit, uses double
Peak method determines overall situation binary-state threshold, when image complexity is more than default complexity range limit
Time, use maximum variance between clusters to determine overall situation binary-state threshold, when image complexity is being preset
Time within complexity scope, mean value method is used to determine overall situation binary-state threshold；Image rectification sets
Standby, it is connected to receive binary image with overall situation binarizing apparatus, for binary image is depended on
Secondary rotation correction process, redundancy cutting process and the image normalization of carrying out processes, to obtain correction
Image；Flame detection equipment, connects with image correcting device and cmos image sensor respectively
Receive binary image and high definition escalator image, for based on default benchmark flame-shaped
Shape identifies the flame object of binary image, and based on flame object at binary image
Position is partitioned into the flame object image of correspondence at high definition escalator image, is additionally based upon flame mesh
Mark occupies the real-time flame size of ratio-dependent of binary image；Calibrating resistance, is that a slip becomes
Resistance device, resistance value is 2M Ω, and a fixing end is connected with the zero line of industrial-frequency alternating current, slides
End is connected with one end of the second resistance；Second resistance, resistance value is 1M Ω, the other end and
One end of one resistance connects, and meanwhile, the other end is as a measurement end output of sampled voltage；The
One resistance, resistance value is 1.5K Ω, and the other end is connected with the live wire of industrial-frequency alternating current；First
Electric capacity, capacitance is 220pf, and one end is connected with the other end of the second resistance, other end ground connection；
3rd resistance, resistance value is 470 Ω, and one end is connected with the live wire of industrial-frequency alternating current, the other end
Another as sampled voltage measures end output；Second electric capacity, capacitance is 220pf, one end
It is connected with the other end of the 3rd resistance, other end ground connection；3rd electric capacity, capacitance is 0.018uf,
One end is connected with the other end of the second resistance, and the other end of the other end and the 3rd resistance connects；The
Four resistance, resistance value is 0.6m Ω, is inserted on the live wire of industrial-frequency alternating current, and i.e. two ends are all
It is connected with the live wire of industrial-frequency alternating current；5th resistance, resistance value is 470 Ω, one end and the 4th
One end of resistance connects, and the other end is as a measurement end output of sample rate current；6th resistance,
Resistance value is 470 Ω, is connected with the other end of the 4th resistance, and the other end is as sample rate current
Another measures end output；4th electric capacity, capacitance is 220pf, and one end is another with the 5th resistance
One end connects, other end ground connection；5th electric capacity, capacitance is 220pf, one end and the 6th electricity
The other end of resistance connects, other end ground connection；6th electric capacity, capacitance is 0.018uf, one end
Being connected with the other end of the 5th resistance, the other end of the other end and the 6th resistance connects；Electric capacity drops
Volt circuit, is connected with zero line and the live wire of industrial-frequency alternating current, for being changed into by industrial-frequency alternating current
5V low-voltage DC, for use as the power supply of electric energy detection equipment；Electric energy detection equipment, including
Tension measuring circuit, current measurement circuit and AT89C51 single-chip microcomputer, tension measuring circuit with
Two measurement ends of sampled voltage connect respectively with detection and export adopting in real time of industrial-frequency alternating current
Sample voltage, current measurement circuit is measured end and is connected respectively to detect and defeated with the two of sample rate current
Go out the real-time sampling electric current of industrial-frequency alternating current, AT89C51 single-chip microcomputer respectively with tension measuring circuit
And current measurement circuit, real-time sampling voltage based on industrial-frequency alternating current and the reality of industrial-frequency alternating current
Time sample rate current, determine and export active power and the reactive power of industrial-frequency alternating current；Isolation sets
Standby, between electric energy detection equipment and Ling Yang SPCE061A chip, use photoelectric coupling electricity
Road, for realizing the isolation of artificial circuit part and digital circuits section, it is to avoid interfere；
AC/DC power-supply device, including transformer step-down circuit, full bridge rectifier, filter circuit
And mu balanced circuit, it is connected with zero line and the live wire of industrial-frequency alternating current, for by the power frequency of 220V
Alternating current is converted to unidirectional current；ZIGBEE communication interface, with Ling Yang SPCE061A chip even
Connect, for receiving and sending active power and reactive power to neighbouring radio meter register equipment；String
Row erasable memory AT24C16B, has 10,000 erasable circulations, with Ling Yang SPCE061A
Chip connects, for receiving active power and the reactive power of industrial-frequency alternating current；Ling Yang
SPCE061A chip, is connected with electric energy detection equipment by isolation circuit, is used for receiving power frequency
The active power of alternating current and reactive power；Frequency duplex communications equipment, with Ling Yang
SPCE061A chip connects, for by fire alarm signal or doubtful fire signal wireless transmission
Administration of the prevention and control control centre to far-end；Wherein, Ling Yang SPCE061A chip the most respectively with fire
Flame detection equipment and smoke detection apparatus connect, when real-time flame size is more than or equal to preset flame
Size and when receiving smog alarm signal, sends fire alarm signal, when real-time flame size
Less than preset flame size and when receiving environment normal signal, send without fire signal, other
Doubtful fire signal is sent during situation.
More specifically, in described escalator multifunctional electric energy meter: frequency duplex communications equipment quilt
It is arranged on the housing of electric energy meter.
More specifically, in described escalator multifunctional electric energy meter: serial erasable memory is also
For storing preset flame size.
More specifically, in described escalator multifunctional electric energy meter: serial erasable memory with
Ling Yang SPCE061A chip is integrated on one piece of surface-mounted integrated circuit.
More specifically, in described escalator multifunctional electric energy meter: AC/DC power-supply device will
The industrial-frequency alternating current of 220V is converted to the unidirectional current of 5V or 3.3V.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the structure according to the escalator multifunctional electric energy meter shown in embodiment of the present invention
Block diagram.
Fig. 2 is according to the escalator multifunctional electric energy meter shown in embodiment of the present invention
The block diagram of AC/DC power-supply device.
Reference: 1 smoke detection apparatus；2 image capture devices；3 image recognition apparatus；
4 electric energy detection equipment；5 main control devices；6 transformer step-down circuit；7 full bridge rectifiers；
8 filter circuits；9 mu balanced circuits
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the escalator multifunctional electric energy meter of the present invention is entered
Row describes in detail.
Currently, the fire detection mechanism in escalator is more single, or uses based on ionization inspection
The smoke detection apparatus of survey technology, or use smog identification equipment based on image detecting technique,
Single testing mechanism, all with defect inherently, causes detection accuracy the highest.
Meanwhile, the public space in escalator is relatively limited, if increasing too much detection equipment,
Escalator will be caused more crowded, and the resident for trip makes troubles.
It addition, the detection technique of the electric energy meter of escalator of the prior art is the most backward, structure
Redundancy is high, still has and further optimizes and the rising space.
In order to overcome above-mentioned deficiency, the present invention has built a kind of escalator multifunctional electric energy meter, fills
Divide the electric energy meter inner space utilizing escalator to realize more multi-functional, reduce the common equipment occupied
Space, meanwhile, uses two kinds of testing mechanisms that the fire condition in escalator is carried out comprehensive descision,
The situation avoiding erroneous judgement occurs, more it is essential that also improve the detection of existing electric energy meter
Mechanism, improves the precision of supply line's parameter of its detection.
Fig. 1 is the structure according to the escalator multifunctional electric energy meter shown in embodiment of the present invention
Block diagram, including smoke detection apparatus, image capture device, image recognition apparatus, electric energy inspection
Measurement equipment and main control device, smoke detection apparatus is for detecting the current escalator at electric energy meter place
Interior smoke condition, image capture device and image recognition apparatus joint operation, it is used for determining electricity
Flame conditions in the current escalator at energy table place, electric energy detection equipment is used for detecting power frequency and hands over
The electric energy of stream electricity output, main control device is known with smoke detection apparatus, image capture device, image
Other equipment and electric energy detection equipment connect respectively.
Then, continue the concrete structure of the escalator multifunctional electric energy meter of the present invention is entered one
The explanation of step.
Described electric energy meter includes: smoke detection apparatus, is arranged on the current elevator at electric energy meter place
Between, including relay indicating light, signal output interface, currents match testing circuit, internal ionization room
Radioactive source americium 241, radioactive source is all placed with outer ionization chamber, internal ionization room and outer ionization indoor
Americium 241 ionization produces negative ions, each moves to positive and negative electrode, do not having under electric field action
In the case of having smog, the electric current of internal ionization room and outer ionization chamber is coupling, when there is smog
When invading outer ionization chamber, the electric current of internal ionization room and outer ionization chamber does not mates, and currents match detects
Circuit is connected with signal output interface, internal ionization room and outer ionization chamber respectively, when interior electricity being detected
When the electric current of room and outer ionization chamber does not mates, control signal output interface sends smog alarm letter
Number, when the currents match of internal ionization room and outer ionization chamber being detected, control signal output interface
Send environment normal signal.
Described electric energy meter includes: cmos image sensor, is arranged on the current of electric energy meter place
Escalator, for shooting to obtain high definition escalator image to current escalator；Complexity
Detection equipment, is connected with cmos image sensor, is used for receiving high definition escalator image,
And calculate based on high definition escalator image and export image complexity；Gray scale converting apparatus, with
Cmos image sensor connects, and is used for receiving high definition escalator image, for high definition escalator
Each pixel in image, extracts its R, G, B tri-Color Channel component, to R,
G, B tri-Color Channel component to give different weighted value average to be weighted, right to obtain
The gray value answered, gray value composition gray level image, wherein R, G, B of all pixels
The weighted value of three Color Channel components is respectively 0.3,0.59 and 0.11；Image filtering equipment,
It is connected with complexity detection equipment and gray scale converting apparatus respectively, for true based on image complexity
The fixed filtering strategies selected, when image complexity is below default complexity range lower limit, choosing
Select gaussian filtering strategy gray level image is filtered, when image complexity is in default complexity
Time more than range limit, select mean filter strategy that gray level image is filtered, work as image
When complexity is within default complexity scope, select medium filtering strategy that gray level image is entered
Row filtering.
Described electric energy meter includes: overall situation binarizing apparatus, respectively with complexity detection equipment and figure
As filter apparatus connects, for determining the determination plan of overall situation binary-state threshold based on image complexity
Slightly, after determining overall situation binary-state threshold, use overall situation binary-state threshold by gray level image
Carry out binary conversion treatment so that the pixel value of the binary image after process only have 0 or 255 this
Based on image complexity, two kinds of selections, wherein determine that the determination strategy of overall situation binary-state threshold is concrete
Including: when image complexity is below default complexity range lower limit, use Two-peak method to determine
Overall situation binary-state threshold, when image complexity is more than default complexity range limit, uses
Maximum variance between clusters determines overall situation binary-state threshold, when image complexity is at default complexity model
Time within enclosing, mean value method is used to determine overall situation binary-state threshold.
Described electric energy meter includes: image correcting device, is connected to receive with overall situation binarizing apparatus
Binary image, for carrying out successively at rotation correction process, redundancy cutting binary image
Reason and image normalization process, to obtain correction chart picture；Flame detection equipment, respectively with image
Calibration equipment and cmos image sensor connect to receive binary image and high definition escalator
Image, for identifying the flame object of binary image based on default benchmark flame profile,
And be partitioned at high definition escalator image based on flame object position at binary image
Corresponding flame object image, is additionally based upon flame object and occupies the ratio-dependent of binary image in fact
Time flame size.
Described electric energy meter includes: calibrating resistance, is a slide rheostat, and resistance value is 2M Ω,
One fixing end is connected with the zero line of industrial-frequency alternating current, and one end of sliding end and the second resistance connects；
Second resistance, resistance value is 1M Ω, and one end of the other end and the first resistance connects, meanwhile,
The other end is as a measurement end output of sampled voltage；First resistance, resistance value is 1.5K Ω,
The other end is connected with the live wire of industrial-frequency alternating current；First electric capacity, capacitance is 220pf, one end
It is connected with the other end of the second resistance, other end ground connection；3rd resistance, resistance value is 470 Ω,
One end is connected with the live wire of industrial-frequency alternating current, and the other end is defeated as another measurement end of sampled voltage
Go out；Second electric capacity, capacitance is 220pf, and one end is connected with the other end of the 3rd resistance, separately
One end ground connection；3rd electric capacity, capacitance is 0.018uf, one end and the other end of the second resistance
Connecting, the other end of the other end and the 3rd resistance connects；4th resistance, resistance value is 0.6m
Ω, is inserted on the live wire of industrial-frequency alternating current, i.e. two ends are all connected with the live wire of industrial-frequency alternating current.
Described electric energy meter includes: the 5th resistance, and resistance value is 470 Ω, one end and the 4th resistance
One end connect, the other end as sample rate current one measurement end output；6th resistance, resistance
Value is 470 Ω, is connected with the other end of the 4th resistance, and the other end is as another of sample rate current
Measurement end exports；4th electric capacity, capacitance is 220pf, one end and the other end of the 5th resistance
Connect, other end ground connection；5th electric capacity, capacitance is 220pf, one end and the 6th resistance
The other end connects, other end ground connection；6th electric capacity, capacitance is 0.018uf, one end and the
The other end of five resistance connects, and the other end of the other end and the 6th resistance connects；Capacitance decompression electricity
Road, is connected with zero line and the live wire of industrial-frequency alternating current, for industrial-frequency alternating current is changed into 5V
Low-voltage DC, for use as the power supply of electric energy detection equipment.
Described electric energy meter includes: electric energy detection equipment, including tension measuring circuit, current measurement
Circuit and AT89C51 single-chip microcomputer, tension measuring circuit divides with two measurement ends of sampled voltage
Do not connect with detection and export the real-time sampling voltage of industrial-frequency alternating current, current measurement circuit with adopt
Two measurement ends of sample electric current connect to detect and export the real-time sampling of industrial-frequency alternating current respectively
Electric current, AT89C51 single-chip microcomputer respectively with tension measuring circuit and current measurement circuit, based on work
Frequently the real-time sampling voltage of alternating current and the real-time sampling electric current of industrial-frequency alternating current, determine and export
The active power of industrial-frequency alternating current and reactive power.Xegregating unit, be positioned at electric energy detection equipment and
Between Ling Yang SPCE061A chip, use photoelectric coupling circuit, be used for realizing analog circuit portion
Divide the isolation with digital circuits section, it is to avoid interfere.
As in figure 2 it is shown, described electric energy meter includes: AC/DC power-supply device, including transformator
Reduction voltage circuit, full bridge rectifier, filter circuit and mu balanced circuit, with the zero of industrial-frequency alternating current
Line and live wire connect, for the industrial-frequency alternating current of 220V is converted to unidirectional current.
Described electric energy meter includes: ZIGBEE communication interface, with Ling Yang SPCE061A chip even
Connect, for receiving and sending active power and reactive power to neighbouring radio meter register equipment；String
Row erasable memory AT24C16B, has 10,000 erasable circulations, with Ling Yang SPCE061A
Chip connects, for receiving active power and the reactive power of industrial-frequency alternating current；Ling Yang
SPCE061A chip, is connected with electric energy detection equipment by isolation circuit, is used for receiving power frequency
The active power of alternating current and reactive power；Frequency duplex communications equipment, with Ling Yang
SPCE061A chip connects, for by fire alarm signal or doubtful fire signal wireless transmission
Administration of the prevention and control control centre to far-end.
Wherein, Ling Yang SPCE061A chip sets with flame detection equipment and Smoke Detection the most respectively
Standby connection, when real-time flame size more than or equal to preset flame size and receives smog alarm letter
Number time, send fire alarm signal, when real-time flame size is less than preset flame size and reception
During to environment normal signal, send without fire signal, during other situations, send doubtful fire signal.
Alternatively, in described electric energy meter: frequency duplex communications equipment is arranged on electric energy meter
On housing；Serial erasable memory is additionally operable to store preset flame size；Serial is erasable deposits
Reservoir and Ling Yang SPCE061A chip are integrated on one piece of surface-mounted integrated circuit；And AC/DC
The industrial-frequency alternating current of 220V can also be converted to the unidirectional current of 5V or 3.3V by power-supply device.
It addition, CMOS (Complementary Metal-Oxide-Semiconductor), in
The entitled complementary metal oxide semiconductors (CMOS) of literature, he is originally a kind of important core in computer system
Sheet, saves the data that System guides is most basic.The manufacturing technology of CMOS and general computer
Chip does not has difference, the quasiconductor made mainly by silicon and germanium both elements, makes
It co-exists band N (band-electricity) and the quasiconductor of P (band+electricity) level on CMOS, this
Electric current produced by two complementary effects can be processed chip record and be interpreted to image.Later
Find that CMOS can also be as the imageing sensor in digital photography through processing.
For independent of the portable use of electrical network, famous with low power consumption characteristic
CMOS technology has an obvious advantage: cmos image sensor be for 5V and
3.3V supply voltage and design.CCD chip then needs the supply voltage of about 12V,
Therefore have to use an electric pressure converter, thus cause power consumption to increase.In terms of total power consumption,
Controlling to be integrated in cmos sensor with systemic-function to bring another benefit: he goes
Except all external connection lines with other semiconductor elements.The driver of its high power consumption is the most
Abandoned, this is because communicate consumed energy ratio at chip internal to pass through PCB
Or the outside implementation of substrate is much lower.
Cmos sensor also can be subdivided into passive type element sensor (Passive Pixel
Sensor CMOS) and active pixel sensor (Active Pixel Sensor CMOS).
Passive type element sensor (Passive Pixel Sensor is called for short PPS), is named again passive
Formula element sensor, he is made up of a back-biased light sensitive diode and a switching tube.
Light sensitive diode is substantially a PN junction being made up of P-type semiconductor and N-type semiconductor,
He can be equivalent to a back-biased diode and a mos capacitance parallel connection.Work as switching tube
During unlatching, light sensitive diode connects with vertical alignment (Column bus).It is positioned at alignment end
The charge integration amplifier reading circuit (Charge integrating amplifier) of end keeps row
Line voltage is a constant, when the signal charge of light sensitive diode storage is read, and its voltage quilt
Resetting to column line voltage level, meanwhile, the electric charge being directly proportional to optical signal is by charge integration
Amplifier is converted to electric charge output.
Active pixel sensor (Active Pixel Sensor is called for short APS), is named again active
Formula element sensor.Almost while CMOS PPS dot structure is invented, people are quickly
Recognize that introducing buffer or amplifier can improve the performance of pixel, at CMOS in pixel
APS has in each pixel the amplifier of oneself.The amplification transistor being integrated in surface reduces
The effective surface area of pixel element, reduces " packaging density ", makes 40%～50% enter
Penetrate light to be reflected.Another problem of this sensor is, how to make the multichannel of sensor put
Having preferably coupling between big device, this can be by reducing the fixed pattern noise of residual level relatively
Realize well.Quilt during only reading at this due to each amplifier in CMOS APS pixel
Excite, so the power dissipation ratio ccd image sensor of CMOS APS is the least
Use the escalator multifunctional electric energy meter of the present invention, for escalator fire in prior art
Detection results is the best and escalator space-constrained technical problem, by being examined by escalator fire
Measurement equipment is transplanted on electric energy meter, takes full advantage of the existing device space, meanwhile, uses two
Plant testing mechanism and realize the comprehensive descision to escalator fire condition, it addition, transformed electric energy meter
Internal structure, improve the detection performance of electric energy meter.
It is it is understood that although the present invention discloses as above with preferred embodiment, but above-mentioned
Embodiment is not limited to the present invention.For any those of ordinary skill in the art,
Without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above
Technical solution of the present invention is made many possible variations and modification, or is revised as equivalent variations
Equivalent embodiments.Therefore, every content without departing from technical solution of the present invention, according to the present invention
Technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all
Still fall within the range of technical solution of the present invention protection.
Claims (2)
1. an escalator multifunctional electric energy meter, sets including smoke detection apparatus, image acquisition
Standby, image recognition apparatus, electric energy detection equipment and main control device, smoke detection apparatus is used for examining
Survey the smoke condition in the current escalator at electric energy meter place, image capture device and image recognition
Equipment joint operation, the flame conditions in the current escalator determining electric energy meter place, electricity
The equipment that can detect is for detecting the electric energy of industrial-frequency alternating current output, and main control device sets with Smoke Detection
Standby, image capture device, image recognition apparatus and electric energy detection equipment connect respectively.
2. escalator multifunctional electric energy meter as claimed in claim 1, it is characterised in that institute
State electric energy meter to include:
Smoke detection apparatus, is arranged on the current escalator at electric energy meter place, indicates including work
Lamp, signal output interface, currents match testing circuit, internal ionization room and outer ionization chamber, interior electricity
All placed radioactive source americium 241 from room and outer ionization indoor, radioactive source americium 241 ionization is just producing
Anion, each moves to positive and negative electrode under electric field action, in the case of there is no smog,
The electric current of internal ionization room and outer ionization chamber is coupling, when there is smog and invading outer ionization chamber,
The electric current of internal ionization room and outer ionization chamber does not mates, and currents match testing circuit is defeated with signal respectively
Outgoing interface, internal ionization room and outer ionization chamber connect, when internal ionization room and outer ionization chamber being detected
When electric current does not mates, control signal output interface sends smog alarm signal, when interior electricity being detected
When the currents match of room and outer ionization chamber, control signal output interface sends environment normal signal；
Cmos image sensor, is arranged on the current escalator at electric energy meter place, for working as
Front escalator carries out shooting to obtain high definition escalator image；
Complexity detection equipment, is connected with cmos image sensor, is used for receiving high definition electricity
Image between ladder, and calculate based on high definition escalator image and export image complexity；
Gray scale converting apparatus, is connected with cmos image sensor, is used for receiving high definition elevator
Between image, for each pixel in high definition escalator image, extract its R, G, B
Three Color Channel components, to R, G, B tri-Color Channel component give different weighted value with
It is weighted average, to obtain corresponding gray value, the gray value composition gray scale of all pixels
Change image, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59
With 0.11；
Image filtering equipment, is connected with complexity detection equipment and gray scale converting apparatus respectively, uses
In determining the filtering strategies of selection based on image complexity, when image complexity is in default complexity
Time below range lower limit, select gaussian filtering strategy that gray level image is filtered, work as image
When complexity is more than default complexity range limit, select mean filter strategy to gray processing figure
As being filtered, when image complexity is within default complexity scope, select medium filtering
Gray level image is filtered by strategy；
Overall situation binarizing apparatus, is connected with complexity detection equipment and image filtering equipment respectively,
For determining the determination strategy of overall situation binary-state threshold based on image complexity, determining the overall situation two
After value threshold value, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment,
The pixel value making the binary image after processing only has 0 or 255 these two kinds selections, Qi Zhongji
Determine that in image complexity the determination strategy of overall situation binary-state threshold specifically includes: when image is complicated
When degree is below default complexity range lower limit, Two-peak method is used to determine overall situation binary-state threshold,
When image complexity is more than default complexity range limit, use maximum variance between clusters true
Fixed overall situation binary-state threshold, when image complexity is within default complexity scope, uses flat
Averaging method determines overall situation binary-state threshold；
Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, is used for
Binary image is carried out successively at rotation correction process, redundancy cutting process and image normalization
Reason, to obtain correction chart picture；
Flame detection equipment, is connected with image correcting device and cmos image sensor respectively
To receive binary image and high definition escalator image, for based on default benchmark flame profile
Identify the flame object of binary image, and based on flame object position at binary image
Put the flame object image being partitioned into correspondence at high definition escalator image, be additionally based upon flame object
Occupy the real-time flame size of ratio-dependent of binary image；
Calibrating resistance, is a slide rheostat, and resistance value is 2M Ω, a fixing end and work
Frequently the zero line of alternating current connects, and one end of sliding end and the second resistance connects；
Second resistance, resistance value is 1M Ω, and one end of the other end and the first resistance connects, with
Time, the other end is as a measurement end output of sampled voltage；
First resistance, resistance value is 1.5K Ω, and the other end is connected with the live wire of industrial-frequency alternating current；
First electric capacity, capacitance is 220pf, and one end is connected with the other end of the second resistance, separately
One end ground connection；
3rd resistance, resistance value is 470 Ω, and one end is connected with the live wire of industrial-frequency alternating current, separately
One end is as another measurement end output of sampled voltage；
Second electric capacity, capacitance is 220pf, and one end is connected with the other end of the 3rd resistance, separately
One end ground connection；
3rd electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the second resistance,
The other end of the other end and the 3rd resistance connects；
4th resistance, resistance value is 0.6m Ω, is inserted on the live wire of industrial-frequency alternating current, i.e.
Two ends are all connected with the live wire of industrial-frequency alternating current；
5th resistance, resistance value is 470 Ω, and one end is connected with one end of the 4th resistance, another
Hold the measurement end output as sample rate current；
6th resistance, resistance value is 470 Ω, is connected with the other end of the 4th resistance, the other end
Another as sample rate current measures end output；
4th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 5th resistance, separately
One end ground connection；
5th electric capacity, capacitance is 220pf, and one end is connected with the other end of the 6th resistance, separately
One end ground connection；
6th electric capacity, capacitance is 0.018uf, and one end is connected with the other end of the 5th resistance,
The other end of the other end and the 6th resistance connects；
Capacity voltage dropping circuit, is connected with zero line and the live wire of industrial-frequency alternating current, for power frequency being handed over
Stream electricity is changed into 5V low-voltage DC, for use as the power supply of electric energy detection equipment；
Electric energy detection equipment, including tension measuring circuit, current measurement circuit and AT89C51
Single-chip microcomputer, tension measuring circuit is measured end and is connected respectively to detect and defeated with the two of sampled voltage
Go out two measurements of the real-time sampling voltage of industrial-frequency alternating current, current measurement circuit and sample rate current
End connects to detect and export the real-time sampling electric current of industrial-frequency alternating current, AT89C51 monolithic respectively
Machine respectively with tension measuring circuit and current measurement circuit, real-time sampling based on industrial-frequency alternating current
The real-time sampling electric current of voltage and industrial-frequency alternating current, determines and exports the wattful power of industrial-frequency alternating current
Rate and reactive power；
Xegregating unit, between electric energy detection equipment and Ling Yang SPCE061A chip, uses
Photoelectric coupling circuit, for realizing the isolation of artificial circuit part and digital circuits section, it is to avoid
Interfere；
AC/DC power-supply device, including transformer step-down circuit, full bridge rectifier, filtering
Circuit and mu balanced circuit, be connected with zero line and the live wire of industrial-frequency alternating current, for by 220V's
Industrial-frequency alternating current is converted to unidirectional current；
ZIGBEE communication interface, is connected with Ling Yang SPCE061A chip, for receive and to
Neighbouring radio meter register equipment sends active power and reactive power；
Serial erasable memory AT24C16B, has 10,000 erasable circulations, with Ling Yang
SPCE061A chip connects, for receiving active power and the reactive power of industrial-frequency alternating current；
Ling Yang SPCE061A chip, is connected with electric energy detection equipment by isolation circuit, is used for
Receive active power and the reactive power of industrial-frequency alternating current；
Frequency duplex communications equipment, is connected with Ling Yang SPCE061A chip, for by fire report
Alert signal or doubtful fire signal are wirelessly transmitted to the administration of the prevention and control control centre of far-end；
Wherein, Ling Yang SPCE061A chip sets with flame detection equipment and Smoke Detection the most respectively
Standby connection, when real-time flame size more than or equal to preset flame size and receives smog alarm letter
Number time, send fire alarm signal, when real-time flame size is less than preset flame size and reception
During to environment normal signal, send without fire signal, during other situations, send doubtful fire signal；
Serial erasable memory is additionally operable to store preset flame size；
Serial erasable memory and Ling Yang SPCE061A chip are integrated in one block of integrated electricity
On the plate of road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296533.8A CN106018952A (en) | 2016-03-28 | 2016-03-28 | Elevator room multi-functional watt-hour meter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296533.8A CN106018952A (en) | 2016-03-28 | 2016-03-28 | Elevator room multi-functional watt-hour meter |
| CN201610184919.XA CN105842505A (en) | 2016-03-28 | 2016-03-28 | Elevator hoistway multifunctional electric energy meter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610184919.XA Division CN105842505A (en) | 2016-03-28 | 2016-03-28 | Elevator hoistway multifunctional electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106018952A true CN106018952A (en) | 2016-10-12 |
Family
ID=56583719
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295011.6A Withdrawn CN105954584A (en) | 2016-03-28 | 2016-03-28 | Multifunctional elevator room watt-hour meter |
| CN201610184919.XA Withdrawn CN105842505A (en) | 2016-03-28 | 2016-03-28 | Elevator hoistway multifunctional electric energy meter |
| CN201610296533.8A Withdrawn CN106018952A (en) | 2016-03-28 | 2016-03-28 | Elevator room multi-functional watt-hour meter |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295011.6A Withdrawn CN105954584A (en) | 2016-03-28 | 2016-03-28 | Multifunctional elevator room watt-hour meter |
| CN201610184919.XA Withdrawn CN105842505A (en) | 2016-03-28 | 2016-03-28 | Elevator hoistway multifunctional electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN105954584A (en) |
-
2016
- 2016-03-28 CN CN201610295011.6A patent/CN105954584A/en not_active Withdrawn
- 2016-03-28 CN CN201610184919.XA patent/CN105842505A/en not_active Withdrawn
- 2016-03-28 CN CN201610296533.8A patent/CN106018952A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN105954584A (en) | 2016-09-21 |
| CN105842505A (en) | 2016-08-10 |
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Application publication date: 20161012 |
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