CN109399541A - A kind of oiling machine control system based on Application on Voiceprint Recognition - Google Patents
A kind of oiling machine control system based on Application on Voiceprint Recognition Download PDFInfo
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- CN109399541A CN109399541A CN201811500702.0A CN201811500702A CN109399541A CN 109399541 A CN109399541 A CN 109399541A CN 201811500702 A CN201811500702 A CN 201811500702A CN 109399541 A CN109399541 A CN 109399541A
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- fuel charger
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- oiling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
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- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of oiling machine control systems based on Application on Voiceprint Recognition, the system includes voice acquisition module, speech processing module, fuel charger control module, executing agency and power module, it is characterised in that: the voice acquisition module includes the mobile wireless sound pick-up outfit that chip and 88W8686 transmission chip are handled based on LPC2368；The speech processing module includes TMS320C6713 DSK chip and LD3320 voice module, realizes Application on Voiceprint Recognition and speech recognition；The fuel charger control module includes POS plate, IC card plate, control panel, display, mainboard of oiling machine and master control borad；The executing agency includes oil gun, solenoid valve and three-phase motor；Gas station attendant obtains fuel charger work permission by Application on Voiceprint Recognition；Fuel charger obtains effective oiling information in staff's language by speech recognition；The control signal of control signal or control panel input that fuel charger control module is issued by voice module drives the motor of fuel charger to work, and the invention discloses a kind of oiling machine control systems based on Application on Voiceprint Recognition.
Description
Technical field
The present invention relates to oiling technical field, in particular to a kind of oiling machine control system based on Application on Voiceprint Recognition.
Background technique
In modern society, with the development of automobile industry, the quantity of gas station is also being constantly increasing, and vehicle flowrate is biggish
Gas station is faced with biggish service pressure；Groundwork equipment of the fuel charger as gas station, the height of working efficiency are straight
Connect the efficiency of service for influencing gas station's entirety；Therefore, it has great significance to the improvement of fuel charger technology.
Traditional fuel charger needs staff to input oiling information by finger-board, later by oil gun to by oil vessel
Oiling, in the big gas station of vehicle flowrate, staff wants the input oiling information of multifrequency time, and holding time is longer, reduces and adds
Oily efficiency；Therefore, it is necessary to design a kind of oiling machine control system based on Application on Voiceprint Recognition.
A kind of oiling machine control system based on Application on Voiceprint Recognition of the invention can identify work by the language of staff
Make the identity of personnel, and extract required oiling information, such as the fuel charger number in " 200 yuan of No.1 oil machine 95# gasoline ", uses
Oil product model needed for family, volume read-out needed for user etc. replace traditional keyboard input process, contracting with Application on Voiceprint Recognition and speech recognition
Short single user refuels the time serviced, improves the working efficiency of gas station's entirety.
Therefore, in view of the deficiencies of the prior art, a kind of oiling machine control system based on Application on Voiceprint Recognition is proposed.
Summary of the invention
The present invention proposes one kind and is based on aiming at the problem that high flow capacity gas station bring low efficiency due to operating time length
The oiling machine control system of Application on Voiceprint Recognition realizes human-computer interaction by Application on Voiceprint Recognition and speech recognition, to improve gas station's work
Efficiency；The system passes through the voice of mobile wireless sound pick-up outfit collecting work personnel, carries out the identity based on Application on Voiceprint Recognition and tests
The key word information in voice is demonstrate,proved and extracted, the key word information after coding is sent into fuel charger control module, is saved artificial
Input time.
In order to achieve the above objectives, technical solution provided by the invention is.
A kind of oiling machine control system based on Application on Voiceprint Recognition, the system include voice acquisition module, speech processes
Module, fuel charger control module, executing agency and power module；It is characterized by: the voice acquisition module includes being based on
LPC2368 handles the mobile wireless sound pick-up outfit of chip and 88W8686 transmission chip；The speech processing module includes
TMS320C6713 DSK chip and LD3320 voice module realize Application on Voiceprint Recognition and speech recognition；The fuel charger controls mould
Block includes POS plate, IC card plate, control panel, display, mainboard of oiling machine and master control borad；The executing agency include oil gun,
Solenoid valve and three-phase motor；Gas station attendant is sent to voice by WIFI by voice acquisition module typing voice, voice
Processing module obtains fuel charger work permission by staff after Application on Voiceprint Recognition；Fuel charger is obtained by keyword speech recognition
Effective oiling information in staff's language is taken, and fuel charger is transmitted this information to by serial communication mode and controls mould
Block；Control module opens solenoid valve, and driving motor operating drives oil pump to complete fuel feeding task.
Using mobile wireless sound pick-up outfit as voice acquisition module, which is based on LPC2368 and handles core the present invention
Piece and 88W8686 transmit chip, and built-in input key, are established by WIFI communication mode and speech processing module logical
Letter, compared with SM/GPRS and cdma communication mode, transmission power is smaller, securely and reliably.
The present invention using TMS320C6713 DSK chip and LD3320 voice module as speech processing module, it can be achieved that
Application on Voiceprint Recognition and speech recognition, wherein TMS320C6713 DSK chip is digital signal processing chip, the calculation as Application on Voiceprint Recognition
Method calculates；LD3320 is speech recognition module, extracts effective oiling in staff's voice by keyword speech recognition and believes
Breath, while the information is transmitted to by IC card plate by serial ports；During the work time, Application on Voiceprint Recognition and speech recognition are to typing voice
Parallel processing promotes recognition speed.
What the present invention was communicated as fuel charger control module with the voiceprint identification module in speech processing module using POS plate
The identity recognized is transmitted to POS plate by serial ports by medium, voiceprint identification module, and matches the virtual identity data of POS plate
Library；In staff's refueling process, POS plate is by the virtual body of oil mass information and charge information real-time update to the staff
In part database.
The present invention uses input board of the IC card plate as fuel charger control module, realizes fuel charger and speech recognition module
Communication, IC card plate receives effective oiling information of speech recognition module, realizes virtual input, while oiling information being output to
Display.
The voice acquisition module is mobile wireless sound pick-up outfit, based on LPC2368 processing chip and 88W8686
Transmit chip.
Voiceprint identification module in the speech processing module uses TMS320C6713 DSK chip.
Speech recognition module in the speech processing module uses LD3320 speech recognition module.
The POS plate uses U11 microprocessor.
The IC card mainboard uses U20 microprocessor.
The mainboard of oiling machine uses positive 71727879 mainboard of star.
Application on Voiceprint Recognition in the speech processing module uses the algorithm based on CSR-CNN model.
Speech recognition in the speech processing module uses keyword speech recognition.
Using Analyzing on Building A Planning Scheme of the invention, compared with prior art, have the advantages that.
(1) a kind of oiling machine control system based on Application on Voiceprint Recognition of the invention, can pass through the sound in staff's voice
Line information completes the Work Authorization of fuel charger, utilizes the oil mass information and meter in virtual identity database real-time update refueling process
Charge information frequently plugs work IC card without staff.
(2) a kind of oiling machine control system based on Application on Voiceprint Recognition of the invention can be mentioned by keyword speech recognition
Information of effectively refueling in staff's voice is taken, virtual input is realized, frequently uses control panel without staff.
(3) the invention proposes a kind of oiling machine control system based on Application on Voiceprint Recognition, Application on Voiceprint Recognition and speech recognition moulds
Block concurrent working handles voice messaging analysis in real time, reduces system work delay.
Detailed description of the invention
Fig. 1 is the illustraton of model of fuel charger.
Fig. 2 is the schematic diagram of oiling machine control system.
Fig. 3 is the structure chart of oiling machine control system.
Fig. 4 is Application on Voiceprint Recognition schematic diagram.
Fig. 5 is speech recognition schematic diagram.
Fig. 6 is the work flow diagram of oiling machine control system.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, the illustraton of model of fuel charger.
Referring to Fig. 2, a kind of oiling machine control system based on Application on Voiceprint Recognition mainly includes voice messaging acquisition module,
Speech processing module, control panel, fuel charger control module and executing agency；Voice acquisition module is recorded by near field acquisition method
Enter gas station attendant's voice, voice is sent to speech processing module by WIFI, and speech processing module is completed to input sound
Authentication and crucial voice messaging extraction, and by serial communication mode the effective oiling information extracted reached plus
Oil machine control module；Control module opens solenoid valve, and driving motor operating drives oil pump to complete fuel feeding task.
Referring to Fig. 2, it is another approach for controlling acquisition of information that staff, which can key in information by control panel,.
Referring to Fig. 3, speech processing module contains voiceprint identification module and speech recognition module, wherein Application on Voiceprint Recognition mould
Block uses TMS320C6713 DSK chip, and for the verifying of gas station attendant's identity, Application on Voiceprint Recognition is by then authorizing work
Make permission, identification is not by terminating then this time to service；Speech recognition module uses LD3320 chip, for extracting staff's language
Effective oiling information in sound, information can realize virtual input after coding by IC card plate.
Referring to Fig. 3, voice acquisition module and speech recognition module concurrent working, it is convenient to provide for oiling machine control system
Input, compared with keying in manual control panel, this method is more efficient.
Referring to Fig. 3, a kind of systematic schematic diagram of the oiling machine control system based on Application on Voiceprint Recognition, IC card plate real-time detection
The starting-up signal of POS plate authentication information opens IC card and speech recognition module when receiving the starting-up signal being verified
Effective oiling information of channel reception speech recognition module, and by the information input mainboard of oiling machine, realize the void of control information
Quasi- input, while oiling information being output on display, in refueling process, the switching signal of real-time detection oil gun works as oil gun
It closes, just feedback signal to mainboard of oiling machine, stops refueling.
Referring to Fig. 4, Application on Voiceprint Recognition schematic diagram, by voice collecting after, calculate the signal-to-noise ratio of noisy speech and choose most
Excellent parameter is reconstructed noisy observation vector using compressed sensing based adaptive fast algorithm, obtains sparse coefficient
Vector recovers original signal by DCT inverse transformation.Enhance algorithm using adaptive voice, reconstructed speech signal improves letter
Number robustness.
Referring to Fig. 4, Application on Voiceprint Recognition schematic diagram makes the overall situation more using Hamming window to the voice signal adding window of reconstruct and framing
Add continuously, avoids the occurrence of Gibbs' effect.
Referring to Fig. 4, Application on Voiceprint Recognition schematic diagram draws sound spectrograph based on enhancing voice signal x (t)；Steps are as follows, (1) point
Frame becomes x (m, n) (n is frame length, and m is the number of frame)；(2) Fourier transformation is done, X (m, n) is obtained；(3) it is cyclic graph Y
(m,n)= X(m,n)* X(m,n)'；(4) Mel frequency conversion takes 10*lg (Y (m, n))；(5) two-dimensional transformations, draw (m, n,
10*lg(Y(m,n)))。
Referring to Fig. 4, Application on Voiceprint Recognition schematic diagram, convolutional neural networks are unified by the feature extraction of pattern-recognition and category of model
Into a network；Input of the sound spectrograph of input voice as convolutional neural networks is obtained, using the classical reversed BP of error
Algorithm training obtains a CNN model, after training model, the sound spectrograph fragment of people to be detected is passed to the model, and extract
It exports feature vector；A lost equation is obtained by feature vector and label characteristics vector, if lost equation calculation
Scoring is greater than a given threshold value, then providing a penalty value, otherwise provides a reward function value；The two letters
Number finally decides the result of Speaker Identification function.When Speaker Identification function reaches threshold value, decide that authentication at
Function, otherwise authentication failed.
Referring to Fig. 5, speech recognition schematic diagram realizes the speech recognition of keyword using existing hidden Markov model,
It briefly describes herein, comprising: establish speech database, model is trained with the voice in database, obtain hidden Ma Er
It can husband's model；Establish syntax rule library；By voice entry system to be tested, matching is completed by model and syntax rule library, and
Export recognition result.
Referring to Fig. 5, speech recognition schematic diagram, the voice of the staff of typing is before for actual test, Yao Jinhang
Pretreatment, to obtain most effective data.
Referring to Fig. 6, the work flow diagram of the oiling machine control system based on Application on Voiceprint Recognition, its step are as follows, and 1. system is examined
The voice input of wireless device is measured by key pressing, activation system simultaneously removes the data cached of last operation, starts typing work
Make the voice of personnel；2. typing voice is transmitted to voiceprint identification module and speech recognition module by WIFI simultaneously；3. vocal print is known
The identity information of other module verification staff opens the logical of speech recognition module and fuel charger IC card plate if being verified
1. road returns if verifying does not pass through；4. speech recognition module extracts effective oiling in voice messaging while 3. process
Information；5. the channel of system detection speech recognition module and fuel charger IC card plate, if channel is opened, fuel charger master control system is received
Effective oiling information of speech recognition realizes virtual input, if channel is not switched on, waits and presses key pressing in 1.；6. refueling
Machine main control module exports control instruction, opens solenoid valve, driving motor.
Referring to Fig. 6, the work flow diagram of the oiling machine control system based on Application on Voiceprint Recognition removes upper primary operation 1. middle
It is data cached, eliminate voice print verification when not passing through, the invalid oiling information of speech recognition module caching.
Referring to Fig. 6, a kind of work flow diagram of the oiling machine control system based on Application on Voiceprint Recognition, in 2., while by work
Make the typing voice transfer of personnel to voiceprint identification module and speech recognition module, two modular concurrents handle voice data, weaken
The delay that generates by mass data operation alleviates system operation burden.
Referring to Fig. 6, in 3., during Application on Voiceprint Recognition carries out authentication, the virtual identity data of POS plate are matched
Library issues boot-strap information by POS plate after being verified, and opens channel.
Referring to Fig. 6, in 5., if channel is not switched on, system is waited, and within the waiting time, channel is opened and then continued to execute；
Conversely, waiting the caching clearance order in 1..
Referring to Fig. 6, in 6., fuel charger master control system issues control instruction, and after detecting the unlatching of oil gun, starting adds
Oil；Oil gun key unclamps, and pause is refueled, until a refueling process terminates.
Claims (5)
1. the system includes voice collecting mould the invention discloses a kind of oiling machine control system based on Application on Voiceprint Recognition
Block, speech processing module, fuel charger control module, executing agency and power module, it is characterised in that: the voice collecting mould
Block includes the mobile wireless sound pick-up outfit that chip and 88W8686 transmission chip are handled based on LPC2368；The speech processes
Module includes TMS320C6713 DSK chip and LD3320 voice module, realizes Application on Voiceprint Recognition and speech recognition；The oiling
Machine control module includes POS plate, IC card plate, control panel, display, mainboard of oiling machine and master control borad；The executing agency
Including oil gun, solenoid valve and three-phase motor；Gas station attendant obtains fuel charger work permission by Application on Voiceprint Recognition；Fuel charger
Effective oiling information in staff's language is obtained by speech recognition；Fuel charger control module is issued by voice module
The motor work of the control signal driving fuel charger of signal or control panel input is controlled, the invention discloses one kind to be based on vocal print
The oiling machine control system of identification.
2. a kind of oiling machine control system based on Application on Voiceprint Recognition according to claim 1, it is characterised in that: the language
Sound acquisition module is the mobile wireless sound pick-up outfit based on WiFi, and movement is convenient, using near field voice acquisition method, and is added
Filter function, effectively reduces noise jamming.
3. a kind of oiling machine control system based on Application on Voiceprint Recognition according to claim 1, it is characterised in that: the language
Sound processing module can realize Application on Voiceprint Recognition, and the verifying of virtual identity is carried out with the POS plate of fuel charger control module.
4. a kind of oiling machine control system based on Application on Voiceprint Recognition according to claim 1, it is characterised in that: the language
Sound processing module can realize keyword speech recognition, extract effective oiling information in voice, and the information after coding is reached
The IC card plate of fuel charger control module realizes the virtual input of oiling information.
5. a kind of oiling machine control system based on Application on Voiceprint Recognition according to claim 1, it is characterised in that: described
Oiling machine control system uses parallel processing working method, and its step are as follows: 1. voice of the system detection to wireless recording equipment
Key pressing is pressed in input, and activation system simultaneously removes the data cached of last operation, starts the voice of typing staff；2. typing
Voice is transmitted to voiceprint identification module and speech recognition module by WIFI simultaneously；3. voiceprint identification module verifies staff's
Identity information opens the channel of speech recognition module Yu fuel charger IC card plate if being verified, if verifying does not pass through, returns
①；4. speech recognition module extracts effective oiling information in voice messaging while 3. process；5. system detection voice is known
The channel of other module and fuel charger IC card plate, if channel is opened, fuel charger master control system receives effective oiling letter of speech recognition
Breath realizes virtual input, if channel is not switched on, waits and presses key pressing in 1.；6. the output control of fuel charger main control module refers to
It enables, opens solenoid valve, driving motor.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054138A (en) * | 2019-05-20 | 2019-07-26 | 士商（上海）机械有限公司 | Wireless machine oil refueling control system and control method |
| CN112242024A (en) * | 2020-10-16 | 2021-01-19 | 上海电机学院 | Oiling machine interaction system based on voice recognition |
| CN112374453A (en) * | 2020-09-24 | 2021-02-19 | 浙江瑞森路政设施有限公司 | Control device for oil filling function of alarming oil gun |
| CN113247851A (en) * | 2021-05-31 | 2021-08-13 | 陈文义 | Oiling machine prompt control device |
| WO2022086744A1 (en) * | 2020-10-20 | 2022-04-28 | Wayne Fueling Systems Llc | Systems and methods for controlling a fuel pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM447344U (en) * | 2012-09-28 | 2013-02-21 | Univ Far East | Refueling apparatus with voice module in a refueling gun |
| CN203359964U (en) * | 2013-05-29 | 2013-12-25 | 北京三盈联合石油技术有限公司 | Self-service oiling machine with voice intercom function |
| CN104512391A (en) * | 2013-09-28 | 2015-04-15 | 西安正武环保科技有限公司 | Systematized oiling machine with easy operation |
| CN205788350U (en) * | 2016-02-25 | 2016-12-07 | 上海大学 | A kind of intelligent sound electronic lock |
| CN106517071A (en) * | 2016-11-11 | 2017-03-22 | 广安市冠华科技有限公司 | Voice-controlled refueling device for disabled people |
-
2018
- 2018-12-10 CN CN201811500702.0A patent/CN109399541A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM447344U (en) * | 2012-09-28 | 2013-02-21 | Univ Far East | Refueling apparatus with voice module in a refueling gun |
| CN203359964U (en) * | 2013-05-29 | 2013-12-25 | 北京三盈联合石油技术有限公司 | Self-service oiling machine with voice intercom function |
| CN104512391A (en) * | 2013-09-28 | 2015-04-15 | 西安正武环保科技有限公司 | Systematized oiling machine with easy operation |
| CN205788350U (en) * | 2016-02-25 | 2016-12-07 | 上海大学 | A kind of intelligent sound electronic lock |
| CN106517071A (en) * | 2016-11-11 | 2017-03-22 | 广安市冠华科技有限公司 | Voice-controlled refueling device for disabled people |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054138A (en) * | 2019-05-20 | 2019-07-26 | 士商（上海）机械有限公司 | Wireless machine oil refueling control system and control method |
| CN112374453A (en) * | 2020-09-24 | 2021-02-19 | 浙江瑞森路政设施有限公司 | Control device for oil filling function of alarming oil gun |
| CN112242024A (en) * | 2020-10-16 | 2021-01-19 | 上海电机学院 | Oiling machine interaction system based on voice recognition |
| WO2022086744A1 (en) * | 2020-10-20 | 2022-04-28 | Wayne Fueling Systems Llc | Systems and methods for controlling a fuel pump |
| US11694683B2 (en) | 2020-10-20 | 2023-07-04 | Wayne Fueling Systems Llc | Systems and methods for controlling a fuel pump |
| US20240029733A1 (en) * | 2020-10-20 | 2024-01-25 | Wayne Fueling Systems Llc | Systems and methods for controlling a fuel pump |
| CN113247851A (en) * | 2021-05-31 | 2021-08-13 | 陈文义 | Oiling machine prompt control device |
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