CN112114340B - Special new energy vehicle positioning system based on wireless network - Google Patents
Special new energy vehicle positioning system based on wireless network Download PDFInfo
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- CN112114340B CN112114340B CN202010929362.4A CN202010929362A CN112114340B CN 112114340 B CN112114340 B CN 112114340B CN 202010929362 A CN202010929362 A CN 202010929362A CN 112114340 B CN112114340 B CN 112114340B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 64
- 238000007405 data analysis Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 61
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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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
- G01S15/87—Combinations of sonar systems
- G01S15/872—Combination of several systems for attitude determination
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
- G01S19/12—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are telecommunication base stations
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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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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a special new energy vehicle positioning system based on a wireless network, which comprises a GPS positioning module, a controller, a wireless network module, a database, a storage module, a data acquisition module, a data analysis module and a vehicle body adjusting module, wherein the GPS positioning module is used for acquiring information of a vehicle body; according to the invention, an ultrasonic emitter is arranged in each positioning monitoring area, and the emission frequencies of the ultrasonic emitters in every two adjacent positioning monitoring areas are different; when a vehicle enters a positioning monitoring area, a large area where the vehicle is located is determined by a GPS positioning module, the positioning monitoring area in the large area is found out, the positioning monitoring area where the vehicle is located is determined by the ultrasonic frequency received by the vehicle, and then the name of the positioning monitoring area is displayed on a display, so that the accurate positioning of the vehicle is realized by combining the GPS and the ultrasonic, the defect of poor positioning precision of the existing positioning system is overcome, and whether the vehicle enters a carriage, a detected parking space and other smaller areas can be judged.
Description
Technical Field
The invention relates to a vehicle positioning technology, in particular to a special new energy vehicle positioning system based on a wireless network.
Background
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel automobile-mounted power device) and integrates the advanced technology in the aspects of power control and driving of the automobile, and the formed technical principle is advanced, and the automobile has a new technology and a new structure.
The publication No. CN108417047A discloses a vehicle positioning and tracking method and system thereof, comprising the following steps: acquiring position coordinates of a monitoring camera in a video monitoring system; capturing license plate information of a vehicle through a monitoring video; positioning the vehicle position coordinates by using the camera position coordinates; the vehicle action path is formed by utilizing the positions and time sequences of the vehicles positioned by the cameras; displaying a vehicle action path on the electronic map; and displaying video recordings when the vehicle passes through each coordinate point in the video window. The invention has the advantages that the vehicle range of positioning tracking is wide, and all vehicles with license plates in the video monitoring range of cities or areas can be positioned and tracked; the storage time of the positioning tracking data is long, and a longer history period can be described; the implementation is convenient, the existing video monitoring network is fully utilized, and any vehicle is not required to be additionally installed.
However, due to the limitation of the positioning precision of the video monitoring network, a means for realizing accurate orientation and positioning within 10 meters of a target is not available, and particularly in an indoor environment, the fact that a vehicle enters a large area can only be determined, and whether the vehicle enters a carriage, a detection parking space and other small areas can not be judged; in the new energy automobile detection process, the bottom of the automobile is required to be detected sometimes, the automobile is required to be driven onto a detection frame, but automatic detection brings higher requirements on the positioning of the automobile, the side position of the automobile is required to be parallel to a detection device, the existing automobile is required to be corrected for multiple times when being driven onto the detection frame to ensure that the side of the automobile is parallel to the detection device, the time consumption is long, and higher requirements are brought forward on the driving technology.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a special new energy vehicle positioning system based on a wireless network; an ultrasonic emitter is arranged in each positioning monitoring area, and the emission frequencies of the ultrasonic emitters in every two adjacent positioning monitoring areas are different; when a vehicle enters a positioning monitoring area, a large area where the vehicle is located is determined by a GPS positioning module, the positioning monitoring area in the large area is found out, the positioning monitoring area where the vehicle is located is determined by the ultrasonic frequency received by the vehicle, and then the name of the positioning monitoring area is displayed on a display, so that the accurate positioning of the vehicle is realized by combining the GPS and the ultrasonic, the defect of poor positioning precision of the existing positioning system is overcome, and whether the vehicle enters a carriage, a detection parking space and other smaller areas can be judged; in addition, the vehicle body and the detection device are quickly adjusted to be horizontal through the positioning device, so that the requirements on the driving technology are reduced, and the detection efficiency is improved.
The aim of the invention can be achieved by the following technical scheme: a special new energy vehicle positioning system based on a wireless network comprises a GPS positioning module, a controller, a wireless network module, a database, a storage module, a data acquisition module, a data analysis module and a vehicle body adjusting module;
the GPS positioning module is used for acquiring GPS positioning data of the current position of the vehicle through GPS satellites, sending the GPS positioning data of the current position of the vehicle to the controller, displaying the GPS positioning data of the current position of the vehicle on a map displayed by the display by the controller, and determining a large area where the vehicle is located; the large area comprises a plurality of positioning monitoring areas;
the data acquisition module comprises a plurality of ultrasonic transmitters and a microphone, wherein the ultrasonic transmitters are used for transmitting ultrasonic signals; the ultrasonic transmitters are respectively arranged in each positioning monitoring area, and the transmitting frequencies of the ultrasonic transmitters in every two adjacent positioning monitoring areas are different; the microphone is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the data acquisition module;
the data acquisition module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the wireless network module, and the wireless network module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the controller through the wireless network;
the database stores the name, the number, the address and the radio frequency value of the ultrasonic transmitter in each positioning monitoring area; the database transmits the name and address of each positioning monitoring area and the transmitting frequency value of the ultrasonic transmitter in each positioning monitoring area to the data analysis module;
when a vehicle enters a positioning detection area, the data acquisition module receives ultrasonic signals in the positioning detection area through a microphone and transmits the ultrasonic signals to the data analysis module, the GPS positioning module acquires GPS positioning data of the current position of the vehicle through a GPS satellite and sends the GPS positioning data of the current position of the vehicle to the data analysis module, and the data analysis module positions the vehicle according to the frequency of the received ultrasonic signals and the GPS positioning data of the current position of the vehicle, wherein the specific positioning steps are as follows:
step one: acquiring GPS positioning data of the current position of the vehicle, automatically acquiring each positioning monitoring area positioned in the positioning range of the GPS positioning data from a database according to the GPS positioning data, and transmitting each positioning monitoring area positioned in the positioning range of the GPS positioning data to a storage module for storage;
step two: the ultrasonic transmitter in each positioning detection area continuously transmits ultrasonic signals; matching the frequency of the received ultrasonic signal with the transmitting frequency value of the ultrasonic transmitter of each positioning monitoring area in the positioning range of the GPS positioning data obtained in the step one;
step three: displaying the name, the number and the address of the positioning detection area of the ultrasonic transmitter corresponding to the transmitting frequency value matched with the frequency of the received ultrasonic signal on a display according to the matching result of the step two;
step four: when the frequency of the received ultrasonic signal is consistent with the frequency value of the ultrasonic transmitter of the preset positioning detection area, the vehicle is indicated to reach the preset positioning detection area, the vehicle is parked in the preset positioning detection area, and a first positioning ending instruction is sent to the controller;
after receiving the first positioning ending instruction, the controller sends a second positioning starting instruction to the vehicle body adjusting module, and the vehicle body adjusting module receives the second positioning starting instruction to drive the control positioning device to adjust the level of the vehicle body and the detection device.
Further, the positioning device comprises two groups of supporting seats which are vertically symmetrically arranged, one side of each supporting seat is rotationally connected with a roller, and the roller can be used for facilitating movement of a front wheel when a vehicle tail is moved, so that excessive friction force between a tire and the supporting seats is avoided to hinder movement of the vehicle; one side, far away from the roller, of the bottom of the inner wall of the supporting seat is slidably connected with a sliding base, the top of the sliding base is fixedly connected with a first electric telescopic rod, the working end of the first electric telescopic rod is fixedly connected with a fixed bottom plate, the top of the fixed bottom plate is fixedly connected with a supporting plate, the tail of the vehicle is supported by the supporting plate, the sliding base is utilized to slide so as to drive the tail of the vehicle to move, and the side face of the vehicle body is regulated to be parallel to the detection device;
the surface of the supporting seat and the position corresponding to the supporting plate are provided with strip holes, one end of the supporting seat far away from the roller is fixedly connected with the sloping plate, the surface of the sloping plate is provided with convex points, so that the supporting seat is convenient for a vehicle to open, and the convex points improve friction force; the top of supporting seat and lie in cylinder one side fixedly connected with protect the frame, protect the frame and play the guard action, inject the vehicle front wheel on the cylinder.
Further, the emission frequencies of the ultrasonic emitters are four, and the ultrasonic emitters are provided with a frequency selection switch for selecting the emission frequencies;
the ultrasonic transmitter comprises a time base chip, a frequency selection switch, a piezoelectric ultrasonic transmitting head and four frequency adjustment resistors; the resistance values of the four frequency adjustment resistors are different from each other;
the frequency selective switch is provided with a common contact and four selective contacts, wherein the common contact is connected with a trigger end and a threshold end of the time base chip, the four selective contacts are respectively connected with an output end of the time base chip through a frequency adjusting resistor, and the output end of the time base chip is connected with the piezoelectric ultrasonic wave transmitting head.
Further, the both ends fixedly connected with solid fixed ring of cylinder, the bottom of supporting seat inner wall just is located cylinder bottom fixedly connected with brace table, and the top fixedly connected with second electric telescopic handle of brace table, the work end fixedly connected with stop plate of second electric telescopic handle, through solid fixed ring and stop plate contact, restrict the rotation of cylinder, the vehicle of being convenient for removes.
Further, a guide column is arranged between the sliding base and the fixed bottom plate, so that the stability of the fixed bottom plate is improved; the motor is fixedly connected to the bottom of the inner wall of the supporting seat, and is a servo motor, so that the servo motor realizes closed-loop control of position, speed and moment, improves precision, has strong overload resistance, and is particularly suitable for occasions with instant load fluctuation and quick start requirements; the center threaded connection of slide base has the lead screw, and the both ends and the inner wall of supporting seat of lead screw rotate to be connected, and the fixed surface of lead screw is connected with first belt pulley, and the output axle head fixedly connected with second belt pulley of motor, transmission connection has the belt between first belt pulley and the second belt pulley, drives the lead screw through belt transmission through the motor and rotates, realizes slide base's slip.
Further, the specific working steps of the vehicle body adjusting module are as follows:
s1: the vehicle is started up and the supporting seat is stopped, an operator starts the positioning device, the supporting plate is moved to the lower part of the wheels, the first electric telescopic rod is started, and the tail of the vehicle is lifted up through the supporting plate;
s2: the motor is started by judging the slant of the vehicle body, the vehicle tail is driven to swing through the rotation of the screw rod, the position of the vehicle body is adjusted, when the vehicle body is observed to be parallel to the detection device, a second positioning ending instruction is sent to the controller, the controller stops the motor after receiving the second positioning ending instruction, and the first electric telescopic rod is controlled to shrink, so that the rear wheel of the vehicle is contacted with the supporting seat;
s3: after detection is completed, the stop plate is contacted with the fixed ring through the work of the second electric telescopic rod, the rotation of the roller is limited, and then the vehicle is driven away from the supporting seat.
The beneficial effects of the invention are as follows:
1. according to the invention, an ultrasonic emitter is arranged in each positioning monitoring area, and the emission frequencies of the ultrasonic emitters in every two adjacent positioning monitoring areas are different; when a vehicle enters a positioning monitoring area, a large area where the vehicle is located is determined by a GPS positioning module, the positioning monitoring area in the large area is found out, the positioning monitoring area where the vehicle is located is determined by the ultrasonic frequency received by the vehicle, and then the name of the positioning monitoring area is displayed on a display, so that the accurate positioning of the vehicle is realized by combining the GPS and the ultrasonic, the defect of poor positioning precision of the existing positioning system is overcome, and whether the vehicle enters a carriage, a detection parking space and other smaller areas can be judged;
2. according to the invention, the two groups of support seats are vertically symmetrically arranged, one side of each support seat is rotationally connected with the roller, and the roller can be used for facilitating the movement of the front wheel when the vehicle tail is moved, so that the excessive friction between the tire and the support seat is avoided to hinder the movement of the vehicle; one side sliding connection who just keeps away from the cylinder in supporting seat inner wall bottom has slide base, slide base's top fixedly connected with first electric telescopic handle, first electric telescopic work end fixedly connected with PMKD's top fixedly connected with layer board, upwards moves the vehicle through the layer board and holds up, utilizes slide base's back-and-forth movement to adjust the vehicle position, realizes quick adjustment automobile body and detection device level, has reduced the requirement to driving technique, has improved the efficiency of detection.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is a schematic view of a positioning device according to the present invention;
FIG. 3 is a schematic view of the internal structure of the support base according to the present invention;
fig. 4 is a schematic structural view of a sliding base in the present invention.
In the figure: 1. a support base; 2. a roller; 3. a sliding base; 4. a first electric telescopic rod; 5. a fixed bottom plate; 6. a supporting plate; 7. a sloping plate; 8. a protective frame; 9. a slit hole; 10. a fixing ring; 11. a support table; 12. a second electric telescopic rod; 13. a stop plate; 14. a guide post; 15. a motor; 16. a screw rod; 17. a first pulley; 18. a second pulley; 19. a belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-4, a special new energy vehicle positioning system based on a wireless network comprises a GPS positioning module, a controller, a wireless network module, a database, a storage module, a data acquisition module, a data analysis module and a vehicle body adjusting module;
the GPS positioning module is used for acquiring GPS positioning data of the current position of the vehicle through GPS satellites, sending the GPS positioning data of the current position of the vehicle to the controller, displaying the GPS positioning data of the current position of the vehicle on a map displayed by the display by the controller, and determining a large area where the vehicle is located; the large area comprises a plurality of positioning monitoring areas;
the data acquisition module comprises a plurality of ultrasonic transmitters and a microphone, wherein the ultrasonic transmitters are used for transmitting ultrasonic signals; the ultrasonic transmitters are respectively arranged in each positioning monitoring area, and the transmitting frequencies of the ultrasonic transmitters in every two adjacent positioning monitoring areas are different; the microphone is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the data acquisition module;
the data acquisition module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the wireless network module, and the wireless network module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the controller through the wireless network;
the database stores the name, the number, the address and the radio frequency value of the ultrasonic transmitter in each positioning monitoring area; the database transmits the name and address of each positioning monitoring area and the transmitting frequency value of the ultrasonic transmitter in each positioning monitoring area to the data analysis module;
when a vehicle enters a positioning detection area, the data acquisition module receives ultrasonic signals in the positioning detection area through a microphone and transmits the ultrasonic signals to the data analysis module, the GPS positioning module acquires GPS positioning data of the current position of the vehicle through a GPS satellite and sends the GPS positioning data of the current position of the vehicle to the data analysis module, and the data analysis module positions the vehicle according to the frequency of the received ultrasonic signals and the GPS positioning data of the current position of the vehicle, wherein the specific positioning steps are as follows:
step one: acquiring GPS positioning data of the current position of the vehicle, automatically acquiring each positioning monitoring area positioned in the positioning range of the GPS positioning data from a database according to the GPS positioning data, and transmitting each positioning monitoring area positioned in the positioning range of the GPS positioning data to a storage module for storage;
step two: the ultrasonic transmitter in each positioning detection area continuously transmits ultrasonic signals; matching the frequency of the received ultrasonic signal with the transmitting frequency value of the ultrasonic transmitter of each positioning monitoring area in the positioning range of the GPS positioning data obtained in the step one;
step three: displaying the name, the number and the address of the positioning detection area of the ultrasonic transmitter corresponding to the transmitting frequency value matched with the frequency of the received ultrasonic signal on a display according to the matching result of the step two;
according to the invention, an ultrasonic emitter is arranged in each positioning monitoring area, and the emission frequencies of the ultrasonic emitters in every two adjacent positioning monitoring areas are different; when a vehicle enters a positioning monitoring area, a large area where the vehicle is located is determined by a GPS positioning module, the positioning monitoring area in the large area is found out, the positioning monitoring area where the vehicle is located is determined by the ultrasonic frequency received by the vehicle, and then the name of the positioning monitoring area is displayed on a display, so that the accurate positioning of the vehicle is realized by combining the GPS and the ultrasonic, the defect of poor positioning precision of the existing positioning system is overcome, and whether the vehicle enters a carriage, a detection parking space and other smaller areas can be judged;
step four: when the frequency of the received ultrasonic signal is consistent with the frequency value of the ultrasonic transmitter of the preset positioning detection area, the vehicle is indicated to reach the preset positioning detection area, the vehicle is parked in the preset positioning detection area, and a first positioning ending instruction is sent to the controller;
after receiving the first positioning ending instruction, the controller sends a second positioning starting instruction to the vehicle body adjusting module, and the vehicle body adjusting module receives the second positioning starting instruction to drive the control positioning device to adjust the level of the vehicle body and the detection device;
the positioning device comprises a supporting seat 1, wherein the supporting seat 1 is provided with two groups which are vertically symmetrically arranged, one side of the supporting seat 1 is rotationally connected with a roller 2, and the roller 2 can be used for facilitating the movement of a front wheel when a vehicle tail is moved, so that the phenomenon that the motion of a vehicle is hindered by overlarge friction force between a tire and the supporting seat 1 is avoided; the bottom of the inner wall of the supporting seat 1 and one side far away from the roller 2 are slidably connected with a sliding base 3, the top of the sliding base 3 is fixedly connected with a first electric telescopic rod 4, the working end of the first electric telescopic rod 4 is fixedly connected with a fixed bottom plate 5, the top of the fixed bottom plate 5 is fixedly connected with a supporting plate 6, the tail of a vehicle is supported by the supporting plate 6, and the sliding of the sliding base 3 is utilized to drive the movement of the tail of the vehicle, so that the side surface of the vehicle body is regulated to be parallel to the detection device; the surface of the supporting seat 1 and the position corresponding to the supporting plate 6 are provided with strip holes 9, one end of the supporting seat 1 far away from the roller 2 is fixedly connected with the sloping plate 7, the surface of the sloping plate 7 is provided with convex points, so that the supporting seat 1 is conveniently opened by a vehicle, and the friction force of the convex points is improved; the top of the supporting seat 1 is fixedly connected with a protective frame 8 at one side of the roller 2, the protective frame 8 plays a role in protection, and the front wheels of the vehicle are limited on the roller 2;
the two ends of the roller 2 are fixedly connected with a fixed ring 10, the bottom of the inner wall of the supporting seat 1 is fixedly connected with a supporting table 11 positioned at the bottom of the roller 2, the top of the supporting table 11 is fixedly connected with a second electric telescopic rod 12, the working end of the second electric telescopic rod 12 is fixedly connected with a stop plate 13, and the fixed ring 10 is contacted with the stop plate 13 to limit the rotation of the roller 2 and facilitate the movement of a vehicle;
guide posts 14 are arranged between the sliding base 3 and the fixed bottom plate 5, so that the stability of the fixed bottom plate 5 is improved.
The motor 15 is fixedly connected to the bottom of the inner wall of the supporting seat 1, the motor 15 is a servo motor, the servo motor realizes closed-loop control of position, speed and moment, the precision is improved, the overload resistance is strong, and the device is particularly suitable for occasions with instant load fluctuation and quick starting requirements; the center of the sliding base 3 is connected with a screw rod 16 in a threaded manner, two ends of the screw rod 16 are rotatably connected with the inner wall of the supporting seat 1, the surface of the screw rod 16 is fixedly connected with a first belt pulley 17, the output shaft end of the motor 15 is fixedly connected with a second belt pulley 18, a belt 19 is in transmission connection between the first belt pulley 17 and the second belt pulley 18, and the screw rod 16 is driven to rotate through the belt 19 by the motor 15, so that the sliding of the sliding base 3 is realized;
according to the invention, two groups of support seats 1 are vertically symmetrically arranged, one side of each support seat 1 is rotationally connected with a roller 2, and the roller 2 can be used for facilitating the movement of front wheels when a vehicle tail is moved, so that the phenomenon that the motion of a vehicle is hindered due to overlarge friction force between a tire and the support seat 1 is avoided; the bottom of the inner wall of the supporting seat 1 and one side far away from the roller 2 are slidably connected with a sliding base 3, the top of the sliding base 3 is fixedly connected with a first electric telescopic rod 4, the working end of the first electric telescopic rod 4 is fixedly connected with a fixed bottom plate 5, the top of the fixed bottom plate 5 is fixedly connected with a supporting plate 6, a vehicle is lifted up through upward movement of the supporting plate 6, the position of the vehicle is adjusted by forward and backward movement of the sliding base 3, the level of a vehicle body and a detection device is quickly adjusted, the requirements on driving technology are reduced, and the detection efficiency is improved;
the specific working steps of the vehicle body adjusting module are as follows:
s1: the vehicle is started and the supporting seat 1 is stopped, an operator starts the positioning device, the supporting plate 6 is moved to the lower part of the wheels, the first electric telescopic rod 4 is started, and the tail of the vehicle is lifted through the supporting plate 6;
s2: the motor 15 is started by judging the slant of the vehicle body, the vehicle tail is driven to swing through the rotation of the screw rod 16, the position of the vehicle body is adjusted, when the parallel operation of the vehicle body and the detection device is observed, a second positioning ending instruction is sent to the controller, the controller stops the motor 15 after receiving the second positioning ending instruction, and the first electric telescopic rod 4 is controlled to shrink, so that the rear wheel of the vehicle is contacted with the supporting seat 1;
s3: after the detection is completed, the stop plate 13 is contacted with the fixed ring 10 through the work of the second electric telescopic rod 12, the rotation of the roller 2 is limited, and then the vehicle is driven away from the supporting seat 1;
the ultrasonic transmitter is provided with four transmitting frequencies, and a frequency selection switch for selecting the transmitting frequency is arranged on the ultrasonic transmitter; the ultrasonic transmitter comprises a time base chip, a frequency selection switch, a piezoelectric ultrasonic transmitting head and four frequency adjustment resistors;
the four frequency adjustment resistors have different resistance values, the frequency selection switch is provided with a common contact and four selection contacts, the common contact is connected with the trigger end and the threshold end of the time base chip, the four selection contacts are respectively connected with the output end of the time base chip through the frequency adjustment resistor, and the output end of the time base chip is connected with the piezoelectric ultrasonic emission head.
The GPS positioning module is used for acquiring GPS positioning data of the current position of the vehicle through GPS satellites and sending the GPS positioning data of the current position of the vehicle to the controller, and the controller displays the GPS positioning data of the current position of the vehicle on a map displayed by the display to determine a large area where the vehicle is located; the large area comprises a plurality of positioning monitoring areas; according to the GPS positioning data, each positioning monitoring area in the positioning range of the GPS positioning data is automatically acquired from a database and transmitted to a storage module for storage; when a vehicle enters a positioning detection area, the data acquisition module receives ultrasonic signals in the positioning detection area through a microphone and transmits the ultrasonic signals to the data analysis module; the data analysis module is used for positioning the vehicle according to the frequency of the received ultrasonic signal and GPS positioning data of the current position of the vehicle; the ultrasonic transmitter in each positioning detection area continuously transmits ultrasonic signals; matching the frequency of the received ultrasonic signal with the transmitting frequency value of the ultrasonic transmitter of each positioning monitoring area in the positioning range of the GPS positioning data obtained in the step one; displaying a location detection area name, a number and an address of an ultrasonic transmitter corresponding to a transmission frequency value matched with the frequency of the received ultrasonic signal on a display; when the frequency of the received ultrasonic signal is consistent with the frequency value of the ultrasonic transmitter of the preset positioning detection area, the vehicle is indicated to reach the preset positioning detection area, the vehicle is parked in the preset positioning detection area, and a first positioning ending instruction is sent to the controller; when a vehicle enters a positioning monitoring area, the invention determines a large area where the vehicle is located through the GPS positioning module, finds out the positioning monitoring area in the large area, determines the positioning monitoring area where the vehicle is located through the ultrasonic frequency received by the vehicle, and displays the name of the positioning monitoring area on a display, thereby realizing accurate positioning of the vehicle through the combination of the GPS and the ultrasonic, overcoming the defect of poor positioning precision of the existing positioning system, and judging whether the vehicle enters a carriage, a detection parking space and other smaller areas;
after receiving the first positioning ending instruction, the controller sends a second positioning starting instruction to the vehicle body adjusting module, and the vehicle body adjusting module receives the second positioning starting instruction to drive the control positioning device to adjust the level of the vehicle body and the detection device; firstly, a vehicle is started and a supporting seat 1 is stopped, an operator starts a positioning device, a supporting plate 6 is moved below wheels, a first electric telescopic rod 4 is started, and the tail of the vehicle is lifted through the supporting plate 6; the motor 15 is started by judging the slant of the vehicle body, the vehicle tail is driven to swing by the rotation of the screw rod 16, the position of the vehicle body is adjusted, the motor 15 is stopped when the vehicle body is observed to be parallel to the detection device, the first electric telescopic rod 4 is contracted, and the rear wheel of the vehicle is contacted with the supporting seat 1; after the detection is completed, the stop plate 13 is contacted with the fixed ring 10 through the work of the second electric telescopic rod 12, the rotation of the roller 2 is limited, and then the vehicle is driven away from the supporting seat 1; the invention can facilitate the movement of the front wheel when the vehicle tail is moved through the roller 2, and avoid the excessive friction force between the tire and the supporting seat 1 to prevent the vehicle from moving; one side sliding connection who just keeps away from cylinder 2 in supporting seat 1 inner wall bottom has slide base 3, slide base 3's top fixedly connected with first electric telescopic handle 4, first electric telescopic handle 4 work end fixedly connected with PMKD 5, PMKD 5's top fixedly connected with layer board 6, it holds up the vehicle to shift up through layer board 6, utilize slide base 3's back-and-forth movement to adjust the vehicle position, realize quick adjustment automobile body and detection device level, reduced the requirement to driving technique, improved the efficiency of detection.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The special new energy vehicle positioning system based on the wireless network is characterized by comprising a GPS positioning module, a controller, a wireless network module, a database, a storage module, a data acquisition module, a data analysis module and a vehicle body adjusting module;
the GPS positioning module is used for acquiring GPS positioning data of the current position of the vehicle through GPS satellites, sending the GPS positioning data of the current position of the vehicle to the controller, displaying the GPS positioning data of the current position of the vehicle on a map displayed by the display by the controller, and determining a large area where the vehicle is located; the large area comprises a plurality of positioning monitoring areas;
the data acquisition module comprises a plurality of ultrasonic transmitters and a microphone, wherein the ultrasonic transmitters are used for transmitting ultrasonic signals; the ultrasonic transmitters are respectively arranged in each positioning monitoring area, and the transmitting frequencies of the ultrasonic transmitters in every two adjacent positioning monitoring areas are different; the microphone is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the data acquisition module;
the data acquisition module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the wireless network module, and the wireless network module is used for receiving the ultrasonic signals and transmitting the ultrasonic signals to the controller through the wireless network;
the database stores the name, the number, the address and the radio frequency value of the ultrasonic transmitter in each positioning monitoring area; the database transmits the name and address of each positioning monitoring area and the transmitting frequency value of the ultrasonic transmitter in each positioning monitoring area to the data analysis module;
when a vehicle enters a positioning detection area, the data acquisition module receives ultrasonic signals in the positioning detection area through a microphone and transmits the ultrasonic signals to the data analysis module, the GPS positioning module acquires GPS positioning data of the current position of the vehicle through a GPS satellite and sends the GPS positioning data of the current position of the vehicle to the data analysis module, and the data analysis module positions the vehicle according to the frequency of the received ultrasonic signals and the GPS positioning data of the current position of the vehicle, wherein the specific positioning steps are as follows:
step one: acquiring GPS positioning data of the current position of the vehicle, automatically acquiring each positioning monitoring area positioned in the positioning range of the GPS positioning data from a database according to the GPS positioning data, and transmitting each positioning monitoring area positioned in the positioning range of the GPS positioning data to a storage module for storage;
step two: the ultrasonic transmitter in each positioning detection area continuously transmits ultrasonic signals; matching the frequency of the received ultrasonic signal with the transmitting frequency value of the ultrasonic transmitter of each positioning monitoring area in the positioning range of the GPS positioning data obtained in the step one;
step three: displaying the name, the number and the address of the positioning detection area of the ultrasonic transmitter corresponding to the transmitting frequency value matched with the frequency of the received ultrasonic signal on a display according to the matching result of the step two;
step four: when the frequency of the received ultrasonic signal is consistent with the frequency value of the ultrasonic transmitter of the preset positioning detection area, the vehicle is indicated to reach the preset positioning detection area, the vehicle is parked in the preset positioning detection area, and a first positioning ending instruction is sent to the controller;
after receiving the first positioning ending instruction, the controller sends a second positioning starting instruction to the vehicle body adjusting module, and the vehicle body adjusting module receives the second positioning starting instruction to drive the control positioning device to adjust the level of the vehicle body and the detection device.
2. The special new energy vehicle positioning system based on the wireless network according to claim 1 is characterized in that the positioning device comprises a supporting seat (1), wherein the supporting seat (1) is provided with two groups symmetrically up and down, and one side of the supporting seat (1) is rotationally connected with a roller (2); one side of the bottom of the inner wall of the supporting seat (1) far away from the roller (2) is slidably connected with a sliding base (3), the top of the sliding base (3) is fixedly connected with a first electric telescopic rod (4), the working end of the first electric telescopic rod (4) is fixedly connected with a fixed bottom plate (5), and the top of the fixed bottom plate (5) is fixedly connected with a supporting plate (6);
the surface of the supporting seat (1) and the position corresponding to the supporting plate (6) are provided with strip holes (9), one end of the supporting seat (1) far away from the roller (2) is fixedly connected with the sloping plate (7), and the surface of the sloping plate (7) is provided with protruding points; the top of the supporting seat (1) is fixedly connected with a protective frame (8) at one side of the roller (2).
3. The special new energy vehicle positioning system based on the wireless network according to claim 1, wherein the ultrasonic wave transmitter has four transmitting frequencies, and a frequency selection switch for selecting the transmitting frequency is arranged on the ultrasonic wave transmitter;
the ultrasonic transmitter comprises a time base chip, a frequency selection switch, a piezoelectric ultrasonic transmitting head and four frequency adjustment resistors; the resistance values of the four frequency adjustment resistors are different from each other;
the frequency selective switch is provided with a common contact and four selective contacts, wherein the common contact is connected with a trigger end and a threshold end of the time base chip, the four selective contacts are respectively connected with an output end of the time base chip through a frequency adjusting resistor, and the output end of the time base chip is connected with the piezoelectric ultrasonic wave transmitting head.
4. The special new energy vehicle positioning system based on the wireless network according to claim 2, wherein the two ends of the roller (2) are fixedly connected with fixing rings (10), the bottom of the inner wall of the supporting seat (1) is fixedly connected with a supporting table (11) which is positioned at the bottom of the roller (2), the top of the supporting table (11) is fixedly connected with a second electric telescopic rod (12), and the working end of the second electric telescopic rod (12) is fixedly connected with a stop plate (13).
5. The special new energy vehicle positioning system based on the wireless network according to claim 2, wherein a guide post (14) is arranged between the sliding base (3) and the fixed bottom plate (5); the bottom of the inner wall of the supporting seat (1) is fixedly connected with a motor (15); the center threaded connection of sliding base (3) has lead screw (16), and the both ends of lead screw (16) are connected with the inner wall rotation of supporting seat (1), and the fixed surface of lead screw (16) is connected with first belt pulley (17), and the output axle head fixedly connected with second belt pulley (18) of motor (15), transmission between first belt pulley (17) and second belt pulley (18) is connected with belt (19).
6. The special new energy vehicle positioning system based on the wireless network as claimed in claim 1, wherein the specific working steps of the vehicle body adjusting module are as follows:
s1: the vehicle is started and the supporting seat (1) is stopped, an operator starts the positioning device, the supporting plate (6) is moved to the lower part of the wheels, the first electric telescopic rod (4) is started, and the tail of the vehicle is lifted through the supporting plate (6);
s2: the motor (15) is started by judging the slant of the vehicle body, the vehicle tail is driven to swing through the rotation of the screw rod (16), the position of the vehicle body is regulated, when the vehicle body is observed to be parallel to the detection device, a second positioning ending instruction is sent to the controller, the controller stops the motor (15) after receiving the second positioning ending instruction, and the first electric telescopic rod (4) is controlled to shrink, so that the rear wheel of the vehicle is contacted with the supporting seat (1);
s3: after detection, the stop plate (13) is contacted with the fixed ring (10) through the work of the second electric telescopic rod (12) to limit the rotation of the roller (2), and then the vehicle is driven away from the supporting seat (1).
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