CN105774581A - Electricity centralized collecting method based on general packet radio service (GPRS) and micropower wireless - Google Patents
Electricity centralized collecting method based on general packet radio service (GPRS) and micropower wireless Download PDFInfo
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- CN105774581A CN105774581A CN201610124914.8A CN201610124914A CN105774581A CN 105774581 A CN105774581 A CN 105774581A CN 201610124914 A CN201610124914 A CN 201610124914A CN 105774581 A CN105774581 A CN 105774581A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to an electricity centralized collecting system based on general packet radio service (GPRS) and micropower wireless. The electricity centralized collecting system comprises an ultrasonic distance measuring plate, an ultrasonic reversing anti-collision radar, a Freescale IMX6 processor and the like; micropower wireless modules are arranged on all terminal electric energy meters, a micropower wireless base station is arranged on a concentrator, data of all the terminal electric energy meters are transmitted to the concentrator through micropower wireless transmission, and finally, the data are transmitted to a centralized collecting main station through a GPRS module arranged on the concentrator. By the adoption of the electricity centralized collecting system, automatic networking, automatic routing and automatic repairing can be achieved, installation is convenient, the cost is low, the influences of electric power circuit failures and environment are avoided, and the reliability is high.
Description
Technical field
The present invention relates to power domain, particularly relate to a kind of electric power collection wireless based on GPRS and micropower and copy method.
Background technology
At present, electric power collection is copied business and is mostly adopted the structure of concentrator and harvester, the ammeter data collected by harvester is uploaded to concentrator by power line carrier, and by GPRS (packet wireless service technology, the GeneralPacketRadioService) passage arranged in concentrator, relevant ammeter data is uploaded to Ji Chao main website.
Copying business due to existing electric power collection adopts power line carrier to copy passage as data set mostly, therefore has the disadvantage in that the impact being subject to circuit and environment, and the success rate that causes checking meter is not high；The speed of data transmission is slow, and transmission bit rate only has hundreds of bps (bit/s, BPS).
Summary of the invention
According to an aspect of the present invention, provide a kind of AMRS wireless based on GPRS and micropower, it is arranged at the multifunctional motor-driven automobile based on radar range finding, described electric automobile includes ultrasonic ranging plate, ultrasonic car-backing Anticollision Radar and Freescale IMX6 processor, ultrasonic ranging plate is for measuring the distance of electric automobile headstock distance preceding object thing, ultrasonic car-backing Anticollision Radar is for measuring the electric automobile back range distance from rear obstacle, Freescale IMX6 processor is connected respectively with ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar, measurement result based on ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar determines the control strategy to electric automobile.
More specifically, described based in the multifunctional motor-driven automobile of radar range finding, including: ultrasonic ranging plate, it is arranged on electric automobile headstock middle position, measuring the distance of electric automobile headstock distance preceding object thing using as the distance output of real-time front, the maximum measurement distance of ultrasonic ranging plate is 5 meters；Front left side ultrasonic sensor, is arranged on electric automobile headstock leftward position, and on the left of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time front left side, and the maximum measurement distance of front left side ultrasonic sensor is 4 meters；Forward right side ultrasonic sensor, is arranged on electric automobile headstock right positions, and on the right side of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time forward right side, and the maximum measurement distance of forward right side ultrasonic sensor is 4 meters；Ultrasonic car-backing Anticollision Radar, is arranged on electric automobile tailstock middle position, measures the electric automobile back range distance from rear obstacle using as the distance output of real-time rear, and the maximum measurement distance of ultrasonic car-backing Anticollision Radar is 2 meters；Temperature sensor, is arranged on the outside of electric automobile, for detecting the real time temperature of electric automobile place environment；DC motor driver, is arranged in the front end instrumental panel of electric automobile, is connected with Freescale IMX6 processor, is used for receiving brake signal, and determines DC MOTOR CONTROL signal based on brake signal；Electric pushrod controller, it is arranged on the top driving wheel of electric automobile, it is made up of brush direct current motor, reducing gear and pusher structure, brush direct current motor is connected with DC motor driver to receive DC MOTOR CONTROL signal, and the slewing rate of brush direct current motor is controlled based on DC MOTOR CONTROL signal, reducing gear is connected respectively with brush direct current motor and pusher structure, and the rotation of brush direct current motor is changed into the promotion to pusher structure；Master cylinder, is arranged on the top driving wheel of electric automobile, is connected with pusher structure, is used at pusher structure, under the promotion of the piston of master cylinder, producing brake fluid pressure；Disk brake, is arranged on the top driving wheel of electric automobile, is connected respectively with the driving wheel of master cylinder and electric automobile, for the driving wheel of electric automobile being performed brake operating based on the brake fluid pressure at master cylinder place；Radio receiver, is arranged on the outside of electric automobile, for taking percentage ratio based on the current GPS location of electric automobile from what the charging station of far-end managed that server receives each charging station near the current GPS location of electric automobile；GPS transceiver, for receiving current GPS location that GPS position location satellite sends in real time, electric automobile, is additionally operable to receive in GPS electronic chart, the GPS location of each charging station near the current GPS location of electric automobile；Electric power detection equipment, is arranged in the accumulator of electric automobile, for detecting the real-time dump energy of accumulator；Freescale IMX6 processor, is connected respectively with radio receiver, electric power detection equipment and GPS transceiver, when real-time dump energy is less than or equal to default power threshold, enters self-navigation pattern；nullWherein，Freescale IMX6 processor is in self-navigation pattern，Start radio receiver and GPS transceiver，The GPS location of current GPS location and each charging station neighbouring is received from GPS transceiver，Current GPS location is sent to radio receiver with near obtaining each charging station take percentage ratio，GPS location based on current GPS location and each charging station neighbouring determines that current GPS location arrives each charging station GPS distance of the GPS location of each charging station neighbouring，Percentage ratio is taken based on each charging station neighbouring、Take percentage weight、The GPS distance of each charging station neighbouring and distance weighting calculate the convenience degree of each charging station neighbouring，Take percentage ratio more low，Convenience degree is more high，GPS distance is more short，Convenience degree is more high，Select the neighbouring charging station that convenience degree is the highest as target charging station；Freescale IMX6 processor is also connected respectively with ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar, when the real-time front distance received, real-time front left side distance, real-time forward right side distance or real-time rear distance are less than respective default warning distance, Freescale IMX6 processor sends brake signal；Ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all based on the aerial spread speed of ultrasound wave to realize range measurement；Ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all connected with temperature sensor, determine the aerial spread speed of ultrasound wave for the real time temperature based on electric automobile place environment.
More specifically, described based in the multifunctional motor-driven automobile of radar range finding: Freescale IMX6 processor is determined according to the GPS distance of target charging station and controlled speed in real time.
More specifically, described based in the multifunctional motor-driven automobile of radar range finding: preset power threshold, take percentage weight and distance weighting is for presetting fixed numbers.
More specifically, described based on, in the multifunctional motor-driven automobile of radar range finding, also including: static memory, it be used for prestoring and take default power threshold, percentage weight and distance weighting.
More specifically, described based in the multifunctional motor-driven automobile of radar range finding: Freescale IMX6 processor is arranged in the front end instrumental panel of electric automobile.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the multifunctional motor-driven automobile based on radar range finding illustrated according to an embodiment of the present invention.
Fig. 2 is the block diagram of the radio receiver of the multifunctional motor-driven automobile based on radar range finding illustrated according to an embodiment of the present invention.
Accompanying drawing labelling: 1 ultrasonic ranging plate；2 ultrasonic car-backing Anticollision Radars；3 Freescale IMX6 processors；4 wireless receivers；5 radio transmitters；6 microcontrollers
Detailed description of the invention
Below with reference to accompanying drawings the embodiment based on the multifunctional motor-driven automobile of radar range finding of the present invention is described in detail.
Ultrasonic ranging principle is as follows: ultrasonic transmitter launches ultrasound wave to a direction, timing is started simultaneously at x time, ultrasound wave is propagated in atmosphere, encounters barrier and just return immediately in way, and ultrasonic receiver receives echo and just stops timing immediately.The aerial spread speed of ultrasound wave is 340m/s, the time t according to timer record, it is possible to calculate the launch point distance (s) from barrier, it may be assumed that s=340t/2.Here it is so-called time difference telemetry.
The principle of ultrasonic ranging be utilize the aerial spread speed of ultrasound wave be it is known that measure sound wave after transmitting, run into the time that barrier reflects, according to launch and receive time difference calculate the launch point actual range to barrier.As can be seen here, ultrasonic ranging principle is the same with Principles of Radar.Ultrasonic ranging is mainly used in the range measurement of reversing prompting, construction site, industry spot etc., although can reach hundred meters on current range finding range, but the precision measured often can only achieve centimetre scale.
But, actually, the aerial spread speed of ultrasound wave is a variable, difference according to ambient temperature, the aerial spread speed of ultrasound wave is also different, therefore, in order to improve the accuracy of ultrasonic ranging, calculate the aerial spread speed of ultrasound wave firstly the need of according to ambient temperature, then realize distance measurement function based on the aerial spread speed of ultrasound wave.
The radar ranging equipment quantity of electric automobile of the prior art is few, and be not based on ambient temperature and carry out the range finding link of surrounding objects, cause the range finding mechanism imperfection of electric automobile, range accuracy is not high, additionally, electric automobile of the prior art also lacks Braking mode equipment to brake accordingly according to radar range finding result, simultaneously, electric automobile of the prior art lacks charging station navigation mechanism and charging station selects mechanism, causes that cannot automatically select most suitable charging station when electric automobile dump energy is not enough is charged.
In order to overcome above-mentioned deficiency, the present invention has built a kind of multifunctional motor-driven automobile based on radar range finding, ultrasonic ranging equipment is increased around the vehicle body of electric automobile, each ultrasonic ranging equipment is increased the ultrasonic propagation velocity based on temperature and calculates link, and add Braking mode equipment, charging station navigator and charging station and select equipment such that it is able to realize High Accuracy Radar range finding, automobile Braking mode and charging station AutoLock feature.
Fig. 1 is the block diagram of the multifunctional motor-driven automobile based on radar range finding illustrated according to an embodiment of the present invention, described electric automobile includes ultrasonic ranging plate, ultrasonic car-backing Anticollision Radar and Freescale IMX6 processor, ultrasonic ranging plate is for measuring the distance of electric automobile headstock distance preceding object thing, ultrasonic car-backing Anticollision Radar is for measuring the electric automobile back range distance from rear obstacle, Freescale IMX6 processor is connected respectively with ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar, measurement result based on ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar determines the control strategy to electric automobile.
Then, continue the concrete structure based on the multifunctional motor-driven automobile of radar range finding of the present invention is further detailed.
Described electric automobile includes: ultrasonic ranging plate, is arranged on electric automobile headstock middle position, measures the distance of electric automobile headstock distance preceding object thing using as the distance output of real-time front, and the maximum measurement distance of ultrasonic ranging plate is 5 meters.
Described electric automobile includes: front left side ultrasonic sensor, it is arranged on electric automobile headstock leftward position, on the left of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time front left side, and the maximum measurement distance of front left side ultrasonic sensor is 4 meters.
Described electric automobile includes: forward right side ultrasonic sensor, it is arranged on electric automobile headstock right positions, on the right side of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time forward right side, and the maximum measurement distance of forward right side ultrasonic sensor is 4 meters.
Described electric automobile includes: ultrasonic car-backing Anticollision Radar, it is arranged on electric automobile tailstock middle position, measuring the electric automobile back range distance from rear obstacle using as the distance output of real-time rear, the maximum measurement distance of ultrasonic car-backing Anticollision Radar is 2 meters.
Described electric automobile includes: temperature sensor, is arranged on the outside of electric automobile, for detecting the real time temperature of electric automobile place environment.
Described electric automobile includes: DC motor driver, is arranged in the front end instrumental panel of electric automobile, is connected with Freescale IMX6 processor, is used for receiving brake signal, and determines DC MOTOR CONTROL signal based on brake signal；Electric pushrod controller, it is arranged on the top driving wheel of electric automobile, it is made up of brush direct current motor, reducing gear and pusher structure, brush direct current motor is connected with DC motor driver to receive DC MOTOR CONTROL signal, and the slewing rate of brush direct current motor is controlled based on DC MOTOR CONTROL signal, reducing gear is connected respectively with brush direct current motor and pusher structure, and the rotation of brush direct current motor is changed into the promotion to pusher structure.
Described electric automobile includes: master cylinder, is arranged on the top driving wheel of electric automobile, is connected with pusher structure, is used at pusher structure, under the promotion of the piston of master cylinder, producing brake fluid pressure；Disk brake, is arranged on the top driving wheel of electric automobile, is connected respectively with the driving wheel of master cylinder and electric automobile, for the driving wheel of electric automobile being performed brake operating based on the brake fluid pressure at master cylinder place.
As shown in Figure 2, described electric automobile includes: radio receiver, it is arranged on the outside of electric automobile, for taking percentage ratio based on the current GPS location of electric automobile from what the charging station of far-end managed that server receives each charging station near the current GPS location of electric automobile.Wherein, radio receiver includes wireless receiver, radio transmitters and microcontroller, and microcontroller is connected respectively with wireless receiver, radio transmitters.
Described electric automobile includes: GPS transceiver, for receiving current GPS location that GPS position location satellite sends in real time, electric automobile, is additionally operable to receive in GPS electronic chart, the GPS location of each charging station near the current GPS location of electric automobile；Electric power detection equipment, is arranged in the accumulator of electric automobile, for detecting the real-time dump energy of accumulator.
Described electric automobile includes: Freescale IMX6 processor, is connected respectively with radio receiver, electric power detection equipment and GPS transceiver, when real-time dump energy is less than or equal to default power threshold, enters self-navigation pattern.
nullWherein，Freescale IMX6 processor is in self-navigation pattern，Start radio receiver and GPS transceiver，The GPS location of current GPS location and each charging station neighbouring is received from GPS transceiver，Current GPS location is sent to radio receiver with near obtaining each charging station take percentage ratio，GPS location based on current GPS location and each charging station neighbouring determines that current GPS location arrives each charging station GPS distance of the GPS location of each charging station neighbouring，Percentage ratio is taken based on each charging station neighbouring、Take percentage weight、The GPS distance of each charging station neighbouring and distance weighting calculate the convenience degree of each charging station neighbouring，Take percentage ratio more low，Convenience degree is more high，GPS distance is more short，Convenience degree is more high，Select the neighbouring charging station that convenience degree is the highest as target charging station.
Wherein, Freescale IMX6 processor is also connected respectively with ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar, when the real-time front distance received, real-time front left side distance, real-time forward right side distance or real-time rear distance are less than respective default warning distance, Freescale IMX6 processor sends brake signal.
Wherein, ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all based on the aerial spread speed of ultrasound wave to realize range measurement；Ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all connected with temperature sensor, determine the aerial spread speed of ultrasound wave for the real time temperature based on electric automobile place environment.
Alternatively, in described electric automobile: Freescale IMX6 processor is determined according to the GPS distance of target charging station and controlled speed in real time；Preset power threshold, take percentage weight and distance weighting for presetting fixed numbers；Described electric automobile also includes: static memory, is used for prestoring and takies default power threshold, percentage weight and distance weighting；And Freescale IMX6 processor can also be arranged in the front end instrumental panel of electric automobile.
Further, since ultrasound wave directivity is strong, energy expenditure is slow, and that propagates in media as well is distant, thus ultrasound wave is frequently used for the measurement of distance, as diastimeter and fill level measuring device etc. realize such as through ultrasound wave.Utilize ultrasound examination often to compare rapidly, convenient, calculating is simple, is prone to accomplish real-time control, and can reach industrial requirements in certainty of measurement.
In order to study and utilize ultrasound wave, people are designed and are made for many supersonic generators.Generally speaking, supersonic generator can be divided into two big classes: a class is with electrically producing ultrasound wave, and a class is mechanically to produce ultrasound wave.Electrically include piezo-electric type, magnetostriction type and power type etc.；Mechanical system has jar (unit of capacitance) system flute, the liquid whistle and air-flow siren etc..Produced by them, hyperacoustic frequency, power and acoustic wave character are different, thus purposes is also different.Comparatively conventional is piezoelectric-type ultrasonic wave producer at present.
Piezoelectric-type ultrasonic wave producer is actually and utilizes the resonance of piezoquartz to carry out work.Two piezoelectric chips and a sounding board is had inside supersonic generator.When his the two poles of the earth applying pulse signal, when its frequency is equal to the natural mode shape of piezoelectric chip, piezoelectric chip will resonate, and drives sounding board to vibrate, and just produces ultrasound wave.Whereas if non-applied voltage between two electrodes, when sounding board receives ultrasound wave, being vibrated by compressing piezoelectric chip, convert mechanical energy into the signal of telecommunication, at this moment he just becomes ultrasonic receiver.
Adopt the multifunctional motor-driven automobile based on radar range finding of the present invention, for electric automobile internal structure in prior art and the auxiliary incomplete technical problem of equipment, radio receiver, electric power detection equipment, GPS transceiver, ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar is added to realize comparison and the locking of the high-precision radar range finding of electric automobile, Braking mode and neighbouring charging station, thus solving above-mentioned technical problem for electric automobile.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described 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 and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection.
Claims (6)
1. copying a method based on the electric power collection that GPRS and micropower are wireless, the method includes:
1) a kind of AMRS wireless based on GPRS and micropower is provided, it is arranged at the multifunctional motor-driven automobile based on radar range finding, described electric automobile includes ultrasonic ranging plate, ultrasonic car-backing Anticollision Radar and Freescale IMX6 processor, ultrasonic ranging plate is for measuring the distance of electric automobile headstock distance preceding object thing, ultrasonic car-backing Anticollision Radar is for measuring the electric automobile back range distance from rear obstacle, Freescale IMX6 processor is connected respectively with ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar, measurement result based on ultrasonic ranging plate and ultrasonic car-backing Anticollision Radar determines the control strategy to electric automobile；
2) described centralized meter-reading system is used.
2. the method for claim 1, it is characterised in that described electric automobile includes:
Ultrasonic ranging plate, is arranged on electric automobile headstock middle position, measures the distance of electric automobile headstock distance preceding object thing using as the distance output of real-time front, and the maximum measurement distance of ultrasonic ranging plate is 5 meters；
Front left side ultrasonic sensor, is arranged on electric automobile headstock leftward position, and on the left of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time front left side, and the maximum measurement distance of front left side ultrasonic sensor is 4 meters；
Forward right side ultrasonic sensor, is arranged on electric automobile headstock right positions, and on the right side of measurement electric automobile headstock, near distance, the distance of barrier is using as the distance output of real-time forward right side, and the maximum measurement distance of forward right side ultrasonic sensor is 4 meters；
Ultrasonic car-backing Anticollision Radar, is arranged on electric automobile tailstock middle position, measures the electric automobile back range distance from rear obstacle using as the distance output of real-time rear, and the maximum measurement distance of ultrasonic car-backing Anticollision Radar is 2 meters；
Temperature sensor, is arranged on the outside of electric automobile, for detecting the real time temperature of electric automobile place environment；
DC motor driver, is arranged in the front end instrumental panel of electric automobile, is connected with Freescale IMX6 processor, is used for receiving brake signal, and determines DC MOTOR CONTROL signal based on brake signal；
Electric pushrod controller, it is arranged on the top driving wheel of electric automobile, it is made up of brush direct current motor, reducing gear and pusher structure, brush direct current motor is connected with DC motor driver to receive DC MOTOR CONTROL signal, and the slewing rate of brush direct current motor is controlled based on DC MOTOR CONTROL signal, reducing gear is connected respectively with brush direct current motor and pusher structure, and the rotation of brush direct current motor is changed into the promotion to pusher structure；
Master cylinder, is arranged on the top driving wheel of electric automobile, is connected with pusher structure, is used at pusher structure, under the promotion of the piston of master cylinder, producing brake fluid pressure；
Disk brake, is arranged on the top driving wheel of electric automobile, is connected respectively with the driving wheel of master cylinder and electric automobile, for the driving wheel of electric automobile being performed brake operating based on the brake fluid pressure at master cylinder place；
Radio receiver, is arranged on the outside of electric automobile, for taking percentage ratio based on the current GPS location of electric automobile from what the charging station of far-end managed that server receives each charging station near the current GPS location of electric automobile；
GPS transceiver, for receiving current GPS location that GPS position location satellite sends in real time, electric automobile, is additionally operable to receive in GPS electronic chart, the GPS location of each charging station near the current GPS location of electric automobile；
Electric power detection equipment, is arranged in the accumulator of electric automobile, for detecting the real-time dump energy of accumulator；
Freescale IMX6 processor, is connected respectively with radio receiver, electric power detection equipment and GPS transceiver, when real-time dump energy is less than or equal to default power threshold, enters self-navigation pattern；
nullWherein，Freescale IMX6 processor is in self-navigation pattern，Start radio receiver and GPS transceiver，The GPS location of current GPS location and each charging station neighbouring is received from GPS transceiver，Current GPS location is sent to radio receiver with near obtaining each charging station take percentage ratio，GPS location based on current GPS location and each charging station neighbouring determines that current GPS location arrives each charging station GPS distance of the GPS location of each charging station neighbouring，Percentage ratio is taken based on each charging station neighbouring、Take percentage weight、The GPS distance of each charging station neighbouring and distance weighting calculate the convenience degree of each charging station neighbouring，Take percentage ratio more low，Convenience degree is more high，GPS distance is more short，Convenience degree is more high，Select the neighbouring charging station that convenience degree is the highest as target charging station；
Wherein, Freescale IMX6 processor is also connected respectively with ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar, when the real-time front distance received, real-time front left side distance, real-time forward right side distance or real-time rear distance are less than respective default warning distance, Freescale IMX6 processor sends brake signal；
Wherein, ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all based on the aerial spread speed of ultrasound wave to realize range measurement；
Wherein, ultrasonic ranging plate, front left side ultrasonic sensor, forward right side ultrasonic sensor and ultrasonic car-backing Anticollision Radar are all connected with temperature sensor, determine the aerial spread speed of ultrasound wave for the real time temperature based on electric automobile place environment.
3. method as claimed in claim 2, it is characterised in that:
Freescale IMX6 processor is determined according to the GPS distance of target charging station and is controlled speed in real time.
4. method as claimed in claim 2, it is characterised in that:
Preset power threshold, take percentage weight and distance weighting for presetting fixed numbers.
5. method as claimed in claim 2, it is characterised in that also include:
Static memory, is used for prestoring and takies default power threshold, percentage weight and distance weighting.
6. method as claimed in claim 2, it is characterised in that:
Freescale IMX6 processor is arranged in the front end instrumental panel of electric automobile.
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| CN201610124914.8A CN105774581A (en) | 2016-03-06 | 2016-03-06 | Electricity centralized collecting method based on general packet radio service (GPRS) and micropower wireless |
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| CN201610124914.8A CN105774581A (en) | 2016-03-06 | 2016-03-06 | Electricity centralized collecting method based on general packet radio service (GPRS) and micropower wireless |
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