CN205450073U - A gas meter for elevator management - Google Patents
A gas meter for elevator management Download PDFInfo
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- CN205450073U CN205450073U CN201620246034.3U CN201620246034U CN205450073U CN 205450073 U CN205450073 U CN 205450073U CN 201620246034 U CN201620246034 U CN 201620246034U CN 205450073 U CN205450073 U CN 205450073U
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Abstract
The utility model relates to a gas meter for elevator management, include that CMOS vision sensor, image processing facility, interchange line parameter draw equipment and DSP handles the chip, exchange line parameter and draw voltage parameter and the current parameter that equipment is used for drawing the alternating current circuit that CMOS vision sensor and image processing facility are used for detecting through the number in the current escalator at gas meter place, DSP processing chip draws equipment with CMOS vision sensor, image processing facility and interchange line parameter respectively and is connected. Through the utility model discloses, can improve the intelligent level of escalator gas meter.
Description
Technical field
This utility model relates to field of image detection, particularly relates to a kind of energy meter for elevator management.
Background technology
Currently, the floor that the elevator leisure stops typically is calculated according to the floor sum of elevator service by elevator management department, this determine that mode is the most fixing, accurately cannot judge based on the resident's quantity in every first floor layer, trip custom, being easily caused elevator spare time rests in a certain floor, and often a lot of people frequently occur on other floors and select the situation taking elevator to occur so that the utilization rate relative reduction of elevator.
Additionally, if needing based on the resident's quantity in every first floor layer, trip custom, the floor that the elevator leisure stops to be calculated, general requirement designs a set of floor pedestrian's quantity statistics equipment, and such floor pedestrian's quantity statistics equipment needs to be placed in the escalator of each floor, i.e. it is placed in the public place waiting elevator of each floor, so, the public space of substantial amounts of escalator will be occupied.Meanwhile, energy meter is the common electronics equipment of escalator, but energy meter structure of the prior art is the most single, and function is the most complete, and detection efficiency is low.
Therefore, need a kind of energy meter for elevator management, transform the energy meter of existing escalator, improve its service behaviour, simultaneously, design a set of floor pedestrian's quantity statistics equipment and the number taking elevator is carried out accurate statistics, and floor pedestrian's quantity statistics equipment of each floor is placed in the energy meter of the escalator in corresponding floor, thus save the common equipment space of escalator.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of energy meter for elevator management, the measurement performance of energy meter can be improved, simultaneously, floor pedestrian's quantity statistics equipment can be accommodated, measure process the previous day number of person and and the elevator parking weighted value of current escalator place floor send jointly to elevator controlling center, in order to the number of person of elevator controlling center escalator based on all floors process the previous day and the elevator parking weighted value of all floors determine the number of plies of the dock floor of the elevator spare time on the same day.
According to one side of the present utility model, provide a kind of energy meter for elevator management, chip is processed including CMOS vision sensor, image processing equipment, alternating current circuit parameter extraction equipment and DSP, alternating current circuit parameter extraction equipment is for extracting voltage parameter and the current parameters of alternating current circuit, CMOS vision sensor and image processing equipment are through number in the current escalator detecting described energy meter place, and DSP processes chip and is connected with CMOS vision sensor, image processing equipment and alternating current circuit parameter extraction equipment respectively.
More specifically, described in the energy meter of elevator management, including: CMOS vision sensor, it is arranged on the housing of energy meter, for shooting to obtain high definition escalator image to the current escalator at energy meter place, the filming frequency of CMOS vision sensor be every five seconds for example clock once；Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition escalator image, and calculates based on high definition escalator image and export image complexity；Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition escalator image, for each pixel in high definition escalator image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain corresponding gray value, the gray value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be 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 determining the filtering strategies of selection based on image complexity, when image complexity is below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered；Overall situation binarizing apparatus, it 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, after determining overall situation binary-state threshold, 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, wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity 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, maximum variance between clusters is used to determine overall situation binary-state threshold, when image complexity is within default complexity scope, mean value method is used to determine overall situation binary-state threshold；Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image carries out rotation correction process, redundancy cutting process and image normalization successively, to obtain correction chart picture；Person recognition equipment, it is connected with CMOS vision sensor and image correcting device respectively to receive high definition escalator image and binary image, for identifying one or more human target of binary image based on default benchmark character contour, determine the human target quantity of binary image；People-counting equipment, built-in timer and statistic unit, statistic unit is connected respectively with person recognition equipment and timer, for adding up the number of person of current escalator process every day；Current transformer and sample circuit, be connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the current signal in A phase line, B phase line and C phase line respectively；Voltage sample circuit, is connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the voltage signal in A phase line, B phase line and C phase line respectively；Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out signal condition；Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition；AD73360 chip, it is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, sampling voltage after sampling current after conditioning and conditioning is performed respectively 16 A/D conversions, obtain digital current signal and digital voltage signal, process chip also by serial peripheral equipment interface SPI with DSP and carry out data communication；EEPROM storage chip, processes chip by serial peripheral equipment interface SPI with DSP and carries out bidirectional data exchange；System power supply power module, is connected with the A phase line in alternating current circuit, B phase line and C phase line, is used for performing alternating current to galvanic conversion, provides direct current power supply for each electronic device；GPRS communication interface, processes chip with DSP and is connected, for receiving active power and the reactive power of also output AC circuit；Display interface, processes chip with DSP and is connected, for receiving and show active power and the reactive power of alternating current circuit；Electric line carrier communication equipment, process chip with DSP to be connected, circuit and carrier wave transtation mission circuit is received including carrier wave, carrier wave receives circuit and is formed by coupling circuit, band filter and AFE (analog front end), and carrier wave transtation mission circuit is made up of signal coupling circuit, tuned power amplifier and modulated spread spectrum signal input interface；DSP processes chip, it is connected with AD73360 chip, EEPROM storage chip, GPRS communication interface and display interface respectively, for receiving digital current signal and the digital voltage signal that AD73360 chip is exported by serial peripheral equipment interface SPI, determine the virtual value of digital current signal, the virtual value of digital voltage signal and the active power of alternating current circuit and reactive power based on digital current signal and digital voltage signal；Wherein, DSP processes chip and is also connected with people-counting equipment, for obtaining the number of person of current escalator process the previous day when every day zero, the number of plies based on current escalator place floor determines the elevator parking weighted value of current escalator place floor, the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor are sent to the elevator controlling center of far-end, so that the elevator parking weighted value of the number of person of elevator controlling center escalator based on all floors process the previous day and all floors determines the number of plies of the dock floor of the elevator spare time on the same day；Wherein, each floor has an escalator, provides parking space during for waiting elevator for corresponding floor resident；Wherein, EEPROM storage chip is additionally operable to store weighted value synopsis, and weighted value synopsis saves the corresponding relation between the number of plies of each floor and the elevator parking weighted value of each floor；Wherein, GPRS communication interface is additionally operable to be sent to the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor the elevator controlling center of far-end.
More specifically, described in the energy meter of elevator management: DSP processes chip and is integrated in one piece of surface-mounted integrated circuit with EEPROM storage chip.
More specifically, described in the energy meter of elevator management: alternatively, DSP processes chip and uses electric line carrier communication equipment that the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor are sent to the elevator controlling center of far-end.
More specifically, described in the energy meter of elevator management: electric line carrier communication equipment is arranged on the housing of energy meter.
More specifically, described in the energy meter of elevator management: GPRS communication interface is arranged on the housing of energy meter.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present utility model is described, wherein:
Fig. 1 is the block diagram according to the energy meter for elevator management shown in this utility model embodiment.
Reference: 1CMOS vision sensor；2 image processing equipments；3 alternating current circuit parameter extraction equipment；4DSP processes chip
Detailed description of the invention
Below with reference to accompanying drawings the embodiment for the energy meter of elevator management of the present utility model is described in detail.
One elevator to service multiple floor, each floor is different to the use frequency of elevator, each floor i.e. is different to the desirability of elevator, this depends on the number of resident, trip custom etc. in each floor, if able to by the number of resident, trip custom fixed quantisation in each floor, it becomes possible to determine each floor use frequency to elevator, correspondingly, can determine the floor that elevator was preferentially stopped in spare time, thus provide optimized elevator service for resident.
But the number of resident is random in each floor, its trip custom is also difficult to specifically quantify, pedestrian's quantity of dealing every day of each floor can only be determined by the way of statistics, and based on the pedestrian's quantity added up and the particular location of each floor, determine which floor elevator rests in spare time and can farthest facilitate more resident to use, thus the situation of elevator occurs relatively to avoid too much people to wait.
Prior art does not has such floor pedestrian's quantity statistics equipment, and such floor pedestrian's quantity statistics equipment needs to be placed in the escalator of each floor, i.e. it is placed in the public place waiting elevator of each floor, and the device space that can be provided by the escalator of each floor is limited, the electronic equipment of some necessity of building has already taken up some spaces of escalator simultaneously, if floor pedestrian's quantity statistics equipment is with the form design of specific installation and placement, substantial amounts of public space will be occupied, make the most limited escalator space more awkward, trip and use to resident bring inconvenience.
Meanwhile, in the escalator of each floor, energy meter is the electronic equipment that resident is necessary, but its measurement structure redundancy of energy meter of the prior art is too high, and the measurement to the parameters of ac power supply line is not accurate enough, still has and optimizes and progressive space.
In order to overcome above-mentioned deficiency, this utility model has built a kind of energy meter for elevator management, energy meter is transformed, improve its detection performance to ac power supply line parameter, more crucially, can therein space content receive floor pedestrian's quantity statistics equipment to place floor every day pedestrian quantity add up such that it is able to determine the leisure dock floor of elevator of correspondence based on pedestrian's quantity and the place floor number of plies.
Fig. 1 is the block diagram according to the energy meter for elevator management shown in this utility model embodiment, chip is processed including CMOS vision sensor, image processing equipment, alternating current circuit parameter extraction equipment and DSP, alternating current circuit parameter extraction equipment is for extracting voltage parameter and the current parameters of alternating current circuit, CMOS vision sensor and image processing equipment are through number in the current escalator detecting described energy meter place, and DSP processes chip and is connected with CMOS vision sensor, image processing equipment and alternating current circuit parameter extraction equipment respectively.
Then, continue the concrete structure for the energy meter of elevator management of the present utility model is further detailed.
Described energy meter includes: CMOS vision sensor, is arranged on the housing of energy meter, for shooting to obtain high definition escalator image to the current escalator at energy meter place, the filming frequency of CMOS vision sensor be every five seconds for example clock once；Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition escalator image, and calculates based on high definition escalator image and export image complexity；Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition escalator image, for each pixel in high definition escalator image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain corresponding gray value, the gray value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11.
Described energy meter includes: image filtering equipment, it 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 below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered.
nullDescribed energy meter includes: overall situation binarizing apparatus，It 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，After determining overall situation binary-state threshold，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，Wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity 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，Maximum variance between clusters is used to determine overall situation binary-state threshold，When image complexity is within default complexity scope，Mean value method is used to determine overall situation binary-state threshold.
Described energy meter includes: image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image carries out rotation correction process, redundancy cutting process and image normalization successively, to obtain correction chart picture；Person recognition equipment, it is connected with CMOS vision sensor and image correcting device respectively to receive high definition escalator image and binary image, for identifying one or more human target of binary image based on default benchmark character contour, determine the human target quantity of binary image.
Described energy meter includes: people-counting equipment, built-in timer and statistic unit, and statistic unit is connected respectively with person recognition equipment and timer, for adding up the number of person of current escalator process every day；Current transformer and sample circuit, be connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the current signal in A phase line, B phase line and C phase line respectively；Voltage sample circuit, is connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the voltage signal in A phase line, B phase line and C phase line respectively；Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out signal condition；Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition.
Described energy meter includes: AD73360 chip, it is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, sampling voltage after sampling current after conditioning and conditioning is performed respectively 16 A/D conversions, obtain digital current signal and digital voltage signal, process chip also by serial peripheral equipment interface SPI with DSP and carry out data communication；EEPROM storage chip, processes chip by serial peripheral equipment interface SPI with DSP and carries out bidirectional data exchange；System power supply power module, is connected with the A phase line in alternating current circuit, B phase line and C phase line, is used for performing alternating current to galvanic conversion, provides direct current power supply for each electronic device.
Described energy meter includes: GPRS communication interface, processes chip with DSP and is connected, for receiving active power and the reactive power of also output AC circuit；Display interface, processes chip with DSP and is connected, for receiving and show active power and the reactive power of alternating current circuit；Electric line carrier communication equipment, process chip with DSP to be connected, circuit and carrier wave transtation mission circuit is received including carrier wave, carrier wave receives circuit and is formed by coupling circuit, band filter and AFE (analog front end), and carrier wave transtation mission circuit is made up of signal coupling circuit, tuned power amplifier and modulated spread spectrum signal input interface.
Described energy meter includes: DSP processes chip, it is connected with AD73360 chip, EEPROM storage chip, GPRS communication interface and display interface respectively, for receiving digital current signal and the digital voltage signal that AD73360 chip is exported by serial peripheral equipment interface SPI, determine the virtual value of digital current signal, the virtual value of digital voltage signal and the active power of alternating current circuit and reactive power based on digital current signal and digital voltage signal.
Wherein, DSP processes chip and is also connected with people-counting equipment, for obtaining the number of person of current escalator process the previous day when every day zero, the number of plies based on current escalator place floor determines the elevator parking weighted value of current escalator place floor, the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor are sent to the elevator controlling center of far-end, so that the elevator parking weighted value of the number of person of elevator controlling center escalator based on all floors process the previous day and all floors determines the number of plies of the dock floor of the elevator spare time on the same day；Wherein, each floor has an escalator, provides parking space during for waiting elevator for corresponding floor resident.
Wherein, EEPROM storage chip is additionally operable to store weighted value synopsis, and weighted value synopsis saves the corresponding relation between the number of plies of each floor and the elevator parking weighted value of each floor；Wherein, GPRS communication interface is additionally operable to be sent to the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor the elevator controlling center of far-end.
Alternatively, described in the energy meter of elevator management: DSP processes chip and is integrated in one piece of surface-mounted integrated circuit with EEPROM storage chip；Alternatively, DSP processes chip employing electric line carrier communication equipment and the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor is sent to the elevator controlling center of far-end；Electric line carrier communication equipment is arranged on the housing of energy meter；And GPRS communication interface can be arranged on the housing of energy meter.
It addition, CMOS (ComplementaryMetal-Oxide-Semiconductor), Chinese formal name used at school is complementary metal oxide semiconductors (CMOS), and he is originally a kind of important chip in computer system, saves the data that System guides is most basic.Manufacturing technology and the general computer chip of CMOS do not have difference, the quasiconductor made mainly by silicon and germanium both elements, making it co-exist the quasiconductor of band N (band-electricity) and P (band+electricity) level on CMOS, the chip that can be processed of electric current produced by the two complementary effect is noted down and is interpreted to image.Found that CMOS can also be as the imageing sensor in digital photography through processing later.
For independent of the portable use of electrical network, the CMOS technology famous with low power consumption characteristic has an obvious advantage: cmos image sensor designs for 5V and 3.3V supply voltage.CCD chip then needs the supply voltage of about 12V, therefore has to use an electric pressure converter, thus causes 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 eliminates all external connection lines with other semiconductor elements.The driver of its high power consumption is abandoned the most, this is because it is more much lower than by the outside implementation of PCB or substrate to communicate consumed energy at chip internal.
Cmos sensor also can be subdivided into passive type element sensor (PassivePixelSensorCMOS) and active pixel sensor (ActivePixelSensorCMOS).
Passive type element sensor (PassivePixelSensor is called for short PPS), is again passive type element sensor, and 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, and he can be equivalent to a back-biased diode and a mos capacitance parallel connection.When switching tube is opened, light sensitive diode connects with vertical alignment (Columnbus).The charge integration amplifier reading circuit (Chargeintegratingamplifier) being positioned at alignment end keeps column line voltage to be a constant, when the signal charge of light sensitive diode storage is read, its voltage is reset to column line voltage level, meanwhile, the electric charge being directly proportional to optical signal is converted to electric charge output by charge integration amplifier.
Active pixel sensor (ActivePixelSensor is called for short APS), is again active element sensor.Almost while CMOSPPS dot structure utility model, it is rapidly be recognized that introducing buffer or amplifier can improve the performance of pixel in pixel, CMOSAPS has in each pixel the amplifier of oneself.The transistor that amplifies being integrated in surface decreases the effective surface area of pixel element, reduces " packaging density ", makes the incident illumination of 40%～50% be reflected.Another problem of this sensor is, how to make to have between the multichannel amplifier of sensor preferably coupling, and this preferably can be realized by the fixed pattern noise reducing residual level.It is excited, so the power dissipation ratio ccd image sensor of CMOSAPS is the least during only reading at this due to each amplifier in CMOSAPS pixel.
Use the energy meter for elevator management of the present utility model, the technical problem that elevator leisure dock floor is accurately calculated cannot be realized while preventing take up extras space for prior art, by building the energy meter for elevator management that can concentrate in escalator energy meter, the number that each floor is taken every day elevator is added up, the basis accurately calculated as elevator leisure dock floor using the data of statistics, the most crucially, improve the measurement mechanism of original energy meter, improve its detection efficiency to alternating current circuit parameter.
Although it is understood that this utility model discloses as above with preferred embodiment, but above-described embodiment is not limited to this utility model.For any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, technical solutions of the utility model are made many possible variations and modification by the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the range of technical solutions of the utility model protection.
Claims (6)
1. the energy meter for elevator management, chip is processed including CMOS vision sensor, image processing equipment, alternating current circuit parameter extraction equipment and DSP, alternating current circuit parameter extraction equipment is for extracting voltage parameter and the current parameters of alternating current circuit, CMOS vision sensor and image processing equipment are through number in the current escalator detecting described energy meter place, and DSP processes chip and is connected with CMOS vision sensor, image processing equipment and alternating current circuit parameter extraction equipment respectively.
2. the energy meter for elevator management as claimed in claim 1, it is characterised in that described energy meter includes:
CMOS vision sensor, is arranged on the housing of energy meter, for shooting to obtain high definition escalator image to the current escalator at energy meter place, the filming frequency of CMOS vision sensor be every five seconds for example clock once；
Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition escalator image, and calculates based on high definition escalator image and export image complexity；
Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition escalator image, for each pixel in high definition escalator image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain corresponding gray value, the gray value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be 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 determining the filtering strategies of selection based on image complexity, when image complexity is below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered；
Overall situation binarizing apparatus, it 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, after determining overall situation binary-state threshold, 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, wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity 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, maximum variance between clusters is used to determine overall situation binary-state threshold, when image complexity is within default complexity scope, mean value method is used to determine overall situation binary-state threshold；
Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image carries out rotation correction process, redundancy cutting process and image normalization successively, to obtain correction chart picture；
Person recognition equipment, it is connected with CMOS vision sensor and image correcting device respectively to receive high definition escalator image and binary image, for identifying one or more human target of binary image based on default benchmark character contour, determine the human target quantity of binary image；
People-counting equipment, built-in timer and statistic unit, statistic unit is connected respectively with person recognition equipment and timer, for adding up the number of person of current escalator process every day；
Current transformer and sample circuit, be connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the current signal in A phase line, B phase line and C phase line respectively；
Voltage sample circuit, is connected with the A phase line in alternating current circuit, B phase line and C phase line, for being sampled the voltage signal in A phase line, B phase line and C phase line respectively；
Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out signal condition；
Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition；
AD73360 chip, it is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, sampling voltage after sampling current after conditioning and conditioning is performed respectively 16 A/D conversions, obtain digital current signal and digital voltage signal, process chip also by serial peripheral equipment interface SPI with DSP and carry out data communication；
EEPROM storage chip, processes chip by serial peripheral equipment interface SPI with DSP and carries out bidirectional data exchange；
System power supply power module, is connected with the A phase line in alternating current circuit, B phase line and C phase line, is used for performing alternating current to galvanic conversion, provides direct current power supply for each electronic device；
GPRS communication interface, processes chip with DSP and is connected, for receiving active power and the reactive power of also output AC circuit；
Display interface, processes chip with DSP and is connected, for receiving and show active power and the reactive power of alternating current circuit；
Electric line carrier communication equipment, process chip with DSP to be connected, circuit and carrier wave transtation mission circuit is received including carrier wave, carrier wave receives circuit and is formed by coupling circuit, band filter and AFE (analog front end), and carrier wave transtation mission circuit is made up of signal coupling circuit, tuned power amplifier and modulated spread spectrum signal input interface；
DSP processes chip, it is connected with AD73360 chip, EEPROM storage chip, GPRS communication interface and display interface respectively, for receiving digital current signal and the digital voltage signal that AD73360 chip is exported by serial peripheral equipment interface SPI, determine the virtual value of digital current signal, the virtual value of digital voltage signal and the active power of alternating current circuit and reactive power based on digital current signal and digital voltage signal；
Wherein, DSP processes chip and is also connected with people-counting equipment, for obtaining the number of person of current escalator process the previous day when every day zero, the number of plies based on current escalator place floor determines the elevator parking weighted value of current escalator place floor, the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor are sent to the elevator controlling center of far-end, so that the elevator parking weighted value of the number of person of elevator controlling center escalator based on all floors process the previous day and all floors determines the number of plies of the dock floor of the elevator spare time on the same day；Wherein, each floor has an escalator, provides parking space during for waiting elevator for corresponding floor resident；
Wherein, EEPROM storage chip is additionally operable to store weighted value synopsis, and weighted value synopsis saves the corresponding relation between the number of plies of each floor and the elevator parking weighted value of each floor；
Wherein, GPRS communication interface is additionally operable to be sent to the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor the elevator controlling center of far-end.
3. the energy meter for elevator management as claimed in claim 2, it is characterised in that:
DSP processes chip and is integrated on one piece of surface-mounted integrated circuit with EEPROM storage chip.
4. the energy meter for elevator management as claimed in claim 2, it is characterised in that:
Alternatively, DSP processes chip employing electric line carrier communication equipment and the number of person of current escalator process the previous day and the elevator parking weighted value of current escalator place floor is sent to the elevator controlling center of far-end.
5. the energy meter for elevator management as claimed in claim 2, it is characterised in that:
Electric line carrier communication equipment is arranged on the housing of energy meter.
6. the energy meter for elevator management as claimed in claim 2, it is characterised in that:
GPRS communication interface is arranged on the housing of energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246034.3U CN205450073U (en) | 2016-03-28 | 2016-03-28 | A gas meter for elevator management |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246034.3U CN205450073U (en) | 2016-03-28 | 2016-03-28 | A gas meter for elevator management |
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| Publication Number | Publication Date |
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| CN205450073U true CN205450073U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620246034.3U Expired - Fee Related CN205450073U (en) | 2016-03-28 | 2016-03-28 | A gas meter for elevator management |
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2016
- 2016-03-28 CN CN201620246034.3U patent/CN205450073U/en not_active Expired - Fee Related
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