CN103203103A - Remote control automobile model device based on mobile Internet - Google Patents
Remote control automobile model device based on mobile Internet Download PDFInfo
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- CN103203103A CN103203103A CN 201210009668 CN201210009668A CN103203103A CN 103203103 A CN103203103 A CN 103203103A CN 201210009668 CN201210009668 CN 201210009668 CN 201210009668 A CN201210009668 A CN 201210009668A CN 103203103 A CN103203103 A CN 103203103A
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Abstract
The invention relates to the wireless remote control automobile model technology and discloses an automobile model device for transmitting video signals and remote control signals and realizing the remote control through mobile Internet. The automobile model device overcomes the defects of the existing remote control automobile model signal transmission technology, so that the remote control distance of an automobile model is not limited, in addition, the clear image transmission quality is provided, and the electromagnetic radiation on human bodies is reduced. The automobile model device has the technical scheme that a mobile Internet access module is additionally arranged on an automobile model, video images are transmitted in real time through wireless Internet, the control end adopts a software mode for realizing the video image receiving and the control signal transmitting on an ordinary PC (personal computer) accessed with the Internet, and a user completes the automobile model control through a handle of a USB (universal serial bus) interface. The automobile model device can be used as a toy for meeting the entertainment requirement of game players and can also replace people to enter occasions in which people inconveniently go for carrying out work such as information survey and emergency rescue.
Description
Technical field
The present invention relates to the wireless remote control automobile modelling technique, particularly relate to by mobile Internet transmission video signal and remote signal, realize the car model device of Remote.
Background technology
The FPV car model is a kind of advanced technology vehicle model that is popular.FPV (First Person View) i.e. is " first person main perspective ", and it utilizes radio to return video image in real time to control end by installing camera additional at auto model, directly controls by screen.
Present FPV car model directly transmits by radio in the vision signal and user's control end remote signal of mode end, has following 3 deficiencies:
1. owing to be subjected to the restriction of wireless signal transmission power and the influence of ground obstacle, the car model operating distance is restricted, and often has only tens meters, has influenced image transmission quality and player's enjoyment.
2. control end is directly launched electromagnetic wave control model, and long-time operation is known from experience the generation electromagnetic radiation to the people.
3. lack spectrum management mechanism, can't avoid the signal between model to disturb, also possible involutory method user's frequency spectrum produces and disturbs.
Summary of the invention
1. goal of the invention
In order to overcome the deficiency that exists in the existing FPV car model signal transmission technology, the present invention adopts vision signal, the control signal between wireless Internet technical transmission car model and the user's control end, make the remote control distance of FPV car model no longer be restricted, and the distinct image transmission quality is provided, reduce the electromagnetic radiation to human body.
2. technical scheme
1) a kind of remote-control car model equipment based on mobile Internet, sub-model end and control end two parts are formed, and add camera and mobile Internet AM access module on the car model, by wireless Internet real-time Transmission video image; Control end then adopts software mode to realize the reception broadcast of video image and the emission of control signal in the ordinary PC that inserts the internet, the video information that photographs of display model end in real time, and send the operation of user control signal control auto model, finish control to the car mould by the handle of USB interface.
2) the model end is except the mechanical system of model car, adopt Implementation of Embedded System AM access module driving, control module, video signal processing module, webcam driver, audio-frequency signal processing module and webcam driver six big modules, and be integrated on the circuit board that has an ARM with car mould steering wheel and motor-drive circuit.
3) control module of model end is by Implementation of Embedded System, and the collection of control video and coding, control signal are transmitted, transmitted control signal, detection information calculations car mould speed by the speed detection module, pass through the detection information calculations battery electric quantity of electric weight detection module etc. to steering wheel and motor drive module by mobile Internet AM access module.
4) the model end is loaded with camera and mobile Internet AM access module, by mobile Internet information such as the Sight gathered, electric weight is transferred to control end.
5) model terminal tool system chief component comprises base, motor and steering wheel three parts; Motor is positioned at the base rear portion, and directly drive car mould two trailing wheels and rotate, be the proal driving force of car mould; Steering wheel is positioned at the base front portion, controls turning to of front-wheel; Steering wheel and motor transfer to (PWM) signal controlling by the pulse width that its drive circuit sends.
6) the model end is by gear other installation infrared transmitter and receiving sensor at driving wheel, the detection model speed of service; The pulse signal that sensor will be received in the gear running, the frequency of statistics pulse signal just can converse the speed of service of dolly in real time.
7) vision signal of model end camera collection is carried out compressed encoding earlier and is transmitted, improves efficiency of transmission to save flow; Be transferred to control end through the vision signal behind the compressed encoding by wireless Internet, control end carries out video decode, plays again.
8) audio signal of model end microphone collection is carried out compressed encoding earlier and is transmitted, improves efficiency of transmission to save flow; Be transferred to control end through the audio signal behind the compressed encoding by wireless Internet, control end carries out audio decoder, plays again.
9) control end adopts a PC and joystick to realize, finishes driving to handle with software mode, and the reception of vision signal and broadcast, the emission of control signal; Except the USB interface handle, other module all on PC the mode by software realize; Communication module is responsible for establishing a communications link by basic communication protocol and model end, and transmission of video and control information; The USB interface handle is input to car mould control module by the USB interface handle drives with user's operation information; Car mould control module produces the control signal to model car by the analysis user operation information, and is transferred to the motion of model end control car mould by communication module; Video signal processing module is obtained vision signal, audio signal, car mould velocity information and the battery electric quantity information that the model termination is received by communication module, adopt the identical coded system of model end to decoding video signal, and deliver to screen and audio amplifier device plays audio frequency and video, display speed information and information about power.
3. beneficial effect
Adopt technical scheme of the present invention, can reach following five beneficial effects:
1) have the local car mould of mobile internet signal to get final product work, remote range no longer is subjected to the restriction of distance.
2) control end radiated electromagnetic wave no longer reduces human body harm, green non-pollution.
3) control end is realized at PC by software mode, has reduced the control end cost, has reduced waste.
4) the model end inserts mobile Internet by mobile Internet AM access module, at the legal band transmissions signal that operator distributes, has avoided the phase mutual interference.Its radiant power meets national standard, has reduced electromagnetic pollution.
5) the stable mobile internet of high speed is for realtime graphic transmission clearly provides assurance.
Description of drawings
Fig. 1 is the schematic diagram of technical scheme of the present invention.
Fig. 2 is the technology frame chart of model end among the present invention.
Fig. 3 is vision signal processing procedure schematic diagram among the present invention.
Fig. 4 is sound intermediate frequency signal processing schematic diagram of the present invention.
The schematic diagram that Fig. 5 detects for medium velocity of the present invention.
Fig. 6 is control end general illustration among the present invention.
The specific embodiment
Technical scheme of the present invention has comprised model end and control end two large divisions.The model end refers to have the auto model of motor and camera, can be according to the control signal operation that receives.Control end refers to user's joystick and video display interface, user's operation information can be sent to the model end.
As shown in Figure 1, the present invention is installed mobile Internet AM access module additional at the model end, by wireless Internet real-time Transmission video image, control end then adopts software mode to realize the reception of video image and the emission of control signal in the ordinary PC that inserts the internet, and the user finishes control to the car mould by the handle of USB interface.
The model end except the mechanical system of model car, adopt embedded system finish driving to mobile Internet AM access module, Video signal processing, to the functions such as control of mechanical system.Control end then is a PC and joystick, finishes driving to handle with software mode, and the reception of vision signal and broadcast, the emission of control signal.
Be illustrated in figure 2 as the technology frame chart of model end.
AM access module driving in the frame of broken lines, control module, video signal processing module, webcam driver, audio-frequency signal processing module and six parts of webcam driver are integrated on the circuit board that has an ARM with motor-drive circuit by the Implementation of Embedded System on the model car and car mould steering wheel.Model car drives by the AM access module on mobile Internet AM access module and the embedded system and is linked in the mobile Internet.After model car and control end were set up and communicate by letter, mobile Internet AM access module received control signal is given whole system by the AM access module driving control module.Control module is responsible for analyzing the control signal of receiving, and to car mould steering wheel and motor drive circuit and webcam driver module transmission instruction.Steering wheel and motor-drive circuit are exported two-way pulse width modulation (PWM) signal according to the instruction of receiving.One the road controls its corner to steering wheel, and one tunnel control direct-drive motor is adjusted the speed of a motor vehicle.Webcam driver is then carried out Digital Zoom according to instruction.The video image that the camera that loads on the model car obtains in real time enters embedded system by webcam driver, at first carries out coding calculating such as necessary compression through video signal processing module, sends into control module.The audio frequency of microphone collection is sent to control module equally through similar processing.The velocity information of speed detection module inspection vehicle mould operation also is sent to control module, calculates the velocity information of dolly.The electric weight detection module converses information about power by detecting the level of battery output through the battery discharge curve, is sent to control module.Control module sends to control end by AM access module driving and mobile Internet AM access module with vision signal, speed, information about power.
1) control module
In dolly model terminal, there are many parts to need control, so need there be independent control module to control each component function.Control module is utilized Implementation of Embedded System, and its major function comprises: the control collection of video and coding, control signal are transmitted, are transmitted control signal, detection information calculations car mould speed by the speed detection module, pass through the detection information calculations battery electric quantity of electric weight detection module etc. to steering wheel and motor drive module by mobile Internet AM access module.
2) video signal processing module and audio-frequency signal processing module
The vision signal of camera collection will be carried out compressed encoding earlier and be transmitted, improves efficiency of transmission to save flow.Because the video signal format of camera collection has many different forms, comprises rgb format, YUV420 form etc.The vision signal of these forms generally takies very big memory space, needs very big transmission bandwidth to transmit signal.Can adopt video compression algorithm, convert it into the video format of simplifying more, transmit, for example H.264 encode.
Be transferred to control end through the vision signal behind the compressed encoding by wireless Internet, control end carries out video decode, plays again.Its signal processing as shown in Figure 3.
Audio-frequency signal processing module and video signal processing module are similar, and the voice data of microphone collection is generally pcm stream, and taking up room of pcm stream is bigger, so before transmission, need carry out the compressed encoding operation to audio frequency PCM sign indicating number.The mode of audio coding is a lot, encodes such as CELP etc.Be transferred to control end through the audio signal behind the compressed encoding by wireless Internet, control end carries out audio decoder, plays again.Its signal processing as shown in Figure 4.
3) mobile Internet AM access module and its driving
The present invention adopts general mobile Internet AM access module that the car mould is linked in the mobile Internet, thereby information such as the Sight gathered, electric weight are transferred to control end.This class AM access module at present is technical ripe and introduced to the market by communications equipment vendor, is widely used in the communication products such as net book.Mobile Internet AM access module has driver, can directly be installed in the middle of the embedded system.The mobile internet of main flow has comprised WCDMA, CDMA2000, TD-SCDMA etc. in the world at present, and is all put into effect by operator's construction.
4) car mould mechanical system and steering wheel and motor-drive circuit
Car mould mechanical system chief component comprises base, motor and steering wheel three parts.Motor is positioned at the base rear portion, and directly drive car mould two trailing wheels and rotate, be the proal driving force of car mould.Steering wheel is positioned at the base front portion, controls turning to of front-wheel.Steering wheel and motor transfer to (PWM) signal controlling by the pulse width that its drive circuit sends.
Drive circuit sends the pulse signal of fixed frequency to motor, and the width of pulse signal is more big, and then motor speed is more fast.In like manner, drive circuit also can be regulated the angle that steering wheel rotates by pulse signal.
5) speed detection module
The velocity information that the speed detection module advances for detection of the car line, and will detect feedback information and give control module, help control module to calculate moving of car speed.
As shown in Figure 4, the speed detection module is by gear other installation infrared transmitter and receiving sensor at driving wheel, the pulse signal that sensor will be received in the gear running.By the frequency of statistics pulse signal, just can converse the speed of service of dolly in real time.
6) electric weight detection module
The car mould in the course of the work, it is very important that the dump energy of battery is fed back to the user in real time, this just requires to detect information about power and passes back to control end and is shown to the user.
Battery is in discharge process, and its dump energy and output voltage exist certain relation, and can reflect by the discharge curve of battery.As long as obtained the discharge curve of the used battery of scheme, just can just can know the dump energy of battery by detecting the output voltage of battery.The electric weight detection module i.e. a voltage detecting circuit, and testing result feeds back to control module and calculates dump energy.
Figure 6 shows that the technology frame chart of control end.Except the USB interface handle, other module all on PC the mode by software realize.Communication module is responsible for establishing a communications link by basic communication protocol and model end, and transmission of video and control information.The USB interface handle is input to car mould control module by the USB interface handle drives with user's operation information.Car mould control module produces the control signal to model car by the analysis user operation information, and is transferred to the motion of model end control car mould by communication module.Video signal processing module is obtained vision signal, audio signal, car mould velocity information and the battery electric quantity information that the model termination is received by communication module, adopt the identical coded system of model end to decoding video signal, and deliver to screen and audio amplifier device plays audio frequency and video, display speed information and information about power.
Claims (9)
1. the remote-control car model equipment based on mobile Internet is characterized in that sub-model end and control end two parts composition, adds camera and mobile Internet AM access module on the car model, by wireless Internet real-time Transmission video image; Control end then adopts software mode to realize the reception broadcast of video image and the emission of control signal in the ordinary PC that inserts the internet, the video information that photographs of display model end in real time, and send the operation of user control signal control auto model, finish control to the car mould by the handle of USB interface.
2. according to the car model device of the described video Remote of claim 1, it is characterized in that the model end is except the mechanical system of model car, adopt Implementation of Embedded System AM access module driving, control module, video signal processing module, webcam driver, audio-frequency signal processing module and webcam driver six big modules, and be integrated on the circuit board that has an ARM with car mould steering wheel and motor-drive circuit.
3. according to the car model device of the described video Remote of claim 1, the control module that it is characterized in that the model end is by Implementation of Embedded System, and the collection of control video and coding, control signal are transmitted, transmitted control signal, detection information calculations car mould speed by the speed detection module, pass through the detection information calculations battery electric quantity of electric weight detection module etc. to steering wheel and motor drive module by mobile Internet AM access module.
4. according to the car model device of the described video Remote of claim 1, it is characterized in that the model end is loaded with camera and mobile Internet AM access module, by mobile Internet information such as the Sight gathered, electric weight are transferred to control end.
5. according to the car model device of the described video Remote of claim 1, it is characterized in that model terminal tool system chief component comprises base, motor and steering wheel three parts; Motor is positioned at the base rear portion, and directly drive car mould two trailing wheels and rotate, be the proal driving force of car mould; Steering wheel is positioned at the base front portion, controls turning to of front-wheel; Steering wheel and motor transfer to (PWM) signal controlling by the pulse width that its drive circuit sends.
6. according to the car model device of the described video Remote of claim 1, it is characterized in that the model end is by gear other installation infrared transmitter and receiving sensor at driving wheel, the detection model speed of service; The pulse signal that sensor will be received in the gear running, the frequency of statistics pulse signal just can converse the speed of service of dolly in real time.
7. according to the car model device of the described video Remote of claim 1, it is characterized in that the vision signal of camera collection, carry out compressed encoding earlier and transmit again, improve efficiency of transmission to save flow; Be transferred to control end through the vision signal behind the compressed encoding by wireless Internet, control end carries out video decode, plays again.
8. according to the car model device of the described video Remote of claim 1, it is characterized in that the audio signal that microphone is gathered, carry out compressed encoding earlier and transmit again, improve efficiency of transmission to save flow; Be transferred to control end through the audio signal behind the compressed encoding by wireless Internet, control end carries out audio decoder, plays again.
9. according to the car model device of the described video Remote of claim 1, it is characterized in that control end adopts a PC and joystick to realize, finish driving to handle with software mode, and the reception of vision signal and broadcast, the emission of control signal; Except the USB interface handle, other module all on PC the mode by software realize; Communication module is responsible for establishing a communications link by basic communication protocol and model end, and transmission of video and control information; The USB interface handle is input to car mould control module by the USB interface handle drives with user's operation information; Car mould control module produces the control signal to model car by the analysis user operation information, and is transferred to the motion of model end control car mould by communication module; Video signal processing module is obtained vision signal, audio signal, car mould velocity information and the battery electric quantity information that the model termination is received by communication module, adopt the identical coded system of model end to decoding video signal, and deliver to screen and audio amplifier device plays audio frequency and video, display speed information and information about power.
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| CN 201210009668 CN103203103A (en) | 2012-01-13 | 2012-01-13 | Remote control automobile model device based on mobile Internet |
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| CN 201210009668 CN103203103A (en) | 2012-01-13 | 2012-01-13 | Remote control automobile model device based on mobile Internet |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645632A (en) * | 2013-11-15 | 2015-05-27 | 付志勇 | Visual wireless remote control toy car situation interaction method and device |
| CN105169714A (en) * | 2015-09-29 | 2015-12-23 | 成都艾维拓思科技有限公司 | Visual remote controlled toy car |
| CN105194877A (en) * | 2015-09-29 | 2015-12-30 | 成都艾维拓思科技有限公司 | Toy tank remotely controlled through first perspective |
| CN105251213A (en) * | 2015-09-29 | 2016-01-20 | 成都艾维拓思科技有限公司 | Remotely controlled toy car based on IOT technology |
| CN106910331A (en) * | 2017-04-21 | 2017-06-30 | 北京小米移动软件有限公司 | Telecontrolled model, control system and method, electronic equipment, readable storage medium storing program for executing |
| CN108434752A (en) * | 2018-05-10 | 2018-08-24 | 深圳市联芯互联科技有限公司 | Toy car based on iBeacon technologies and communication means |
| CN108489735A (en) * | 2018-03-28 | 2018-09-04 | 吉林大学 | Double trailer train model stability experimental rig based on the theory of similarity and method |
| CN108888967A (en) * | 2018-09-12 | 2018-11-27 | 深圳市富斯科技有限公司 | A kind of model timekeeping system of wireless transmission |
| CN111565194A (en) * | 2020-05-18 | 2020-08-21 | 刘安东 | Control method for remotely controlling unmanned vehicle based on WebRTC |
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2012
- 2012-01-13 CN CN 201210009668 patent/CN103203103A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645632A (en) * | 2013-11-15 | 2015-05-27 | 付志勇 | Visual wireless remote control toy car situation interaction method and device |
| CN104645632B (en) * | 2013-11-15 | 2016-11-23 | 付志勇 | Visual wireless remote-controlled toy vehicle sight exchange method and device |
| CN105169714A (en) * | 2015-09-29 | 2015-12-23 | 成都艾维拓思科技有限公司 | Visual remote controlled toy car |
| CN105194877A (en) * | 2015-09-29 | 2015-12-30 | 成都艾维拓思科技有限公司 | Toy tank remotely controlled through first perspective |
| CN105251213A (en) * | 2015-09-29 | 2016-01-20 | 成都艾维拓思科技有限公司 | Remotely controlled toy car based on IOT technology |
| CN106910331A (en) * | 2017-04-21 | 2017-06-30 | 北京小米移动软件有限公司 | Telecontrolled model, control system and method, electronic equipment, readable storage medium storing program for executing |
| CN108489735A (en) * | 2018-03-28 | 2018-09-04 | 吉林大学 | Double trailer train model stability experimental rig based on the theory of similarity and method |
| CN108434752A (en) * | 2018-05-10 | 2018-08-24 | 深圳市联芯互联科技有限公司 | Toy car based on iBeacon technologies and communication means |
| CN108888967A (en) * | 2018-09-12 | 2018-11-27 | 深圳市富斯科技有限公司 | A kind of model timekeeping system of wireless transmission |
| CN111565194A (en) * | 2020-05-18 | 2020-08-21 | 刘安东 | Control method for remotely controlling unmanned vehicle based on WebRTC |
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Legal Events
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| CB02 | Change of applicant information |
Address after: 201203 Shanghai city Pudong New Area Keyuan Road No. 399 Building No. 10 10 floor Applicant after: Zhang Jianye Address before: 210096 Li Wenzheng, building 610, Southeast University, four arch 2, Jiangsu, Nanjing Applicant before: Zhang Jianye |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130717 |