US20140218524A1 - Remote control toy car with wireless real-time transmission of audio and video signals - Google Patents
Remote control toy car with wireless real-time transmission of audio and video signals Download PDFInfo
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- US20140218524A1 US20140218524A1 US13/761,169 US201313761169A US2014218524A1 US 20140218524 A1 US20140218524 A1 US 20140218524A1 US 201313761169 A US201313761169 A US 201313761169A US 2014218524 A1 US2014218524 A1 US 2014218524A1
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- toy car
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 2
- 230000005236 sound signal Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H30/00—Remote-control arrangements specially adapted for toys, e.g. for toy vehicles
- A63H30/02—Electrical arrangements
- A63H30/04—Electrical arrangements using wireless transmission
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/26—Details; Accessories
Definitions
- the present invention relates generally to a remote control toy car.
- this invention relates to a remote control toy car that supports wireless real-time transmission of audio and video signals.
- Existing remote-monitoring products typically employ cables for transmitting audio and video signals captured at remote sites to control centers. Installation of these products requires installation of wired networks. Another constraint of these products is that the captured audiovisual data can be viewed and listened to only at fixed locations. Furthermore, these products are usually bulky so that it is not convenient to transport them from one place to another. It is also noted a constraint that these products can be operated only if external power is available for powering these products.
- a remote control toy car In some industrial, entertainment and home applications, there is interest to enable a remote control toy car to achieve wireless real-time transmission of audio and video data captured at a remote location by the toy car.
- the audiovisual data are wirelessly transmitted from the toy car to a client's terminal for seeing and hearing by the client.
- Using techniques that realize remote-monitoring products to implement this toy car is not preferable because of the aforementioned constraints of the remote-monitoring products.
- the present invention provides a remote control toy car that supports wireless real-time transmission of audiovisual data and that does not have the above-mentioned constraints of existing remote-monitoring products, that is, big size, inconvenience to carry and the need to connect to an external power supply during operation.
- the present invention provides a remote control toy car comprising a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, an audio circuit and a radio transceiving circuit.
- the microprocessor is coupled to the clock generation circuit, the program memory, the random access memory, the power conversion circuit, the video capturing circuit, the audio circuit and the radio transceiving circuit, so as to obtain the required working power from the power conversion circuit and one or more clock signals from the clock generation circuit.
- the microprocessor activates the video capturing circuit and the audio circuit.
- the microprocessor obtains video and audio data, and further processes, compresses, packetizes and stores such data in the random access memory.
- the microprocessor is coupled to the radio transceiving circuit.
- the microprocessor After receiving a request signal from a client terminal via the radio transceiving circuit, the microprocessor retrieves the audio and video data packets stored in the random access memory according to the instructions stored in the program memory, transmits them to the client terminal through the radio transceiving circuit, thereby allowing the client terminal to display images and generate audio output in a real-time manner according to the audio and video data packets.
- the toy car After the toy car receives audio data packets wirelessly sent by the client terminal and after such packets are processed by the audio circuit, an audio output is produced via a speaker.
- the microprocessor runs with power provided by the power conversion circuit, receives the video data acquired by the video capturing circuit according to the instructions stored in the program memory, and packetizes, compresses and sends the resultant compressed, packetized video data to the client terminal through the radio transceiving circuit.
- the microprocessor receives the audio data acquired by the audio circuit according to the instructions stored in the program memory, and packetizes, compresses and sends the resultant compressed, packetized audio data to the client terminal through the radio transceiving circuit.
- the clock generation circuit is coupled to the microprocessor and is used to provide the one or more clock signals required by the microprocessor for proper working.
- the program memory is coupled to the microprocessor and is used to store the program instructions for the operation of the microprocessor.
- the random access memory is coupled to the microprocessor and is used for randomly accessing audio and video data packets stored therein.
- the power conversion circuit is coupled to the microprocessor and is used to provide power to the microprocessor and devices coupled thereto for proper operation.
- the power supply module is coupled to the power conversion circuit and is used to provide power to the power conversion circuit.
- the video capturing circuit coupled to the microprocessor, is used to acquire video data according to instructions of the microprocessor, and to transmit such video data to the microprocessor for processing, compression and packetizing.
- the audio circuit is coupled to the microprocessor and is used to transmit the audio data acquired by a microphone to the microprocessor for processing, compression and packetizing.
- an audio output is produced via the speaker.
- the radio transceiving circuit coupled to the microprocessor, is used to receive the request signal issued from the client terminal and send the request signal to the microprocessor.
- the microprocessor retrieves the compressed video/audio data packets stored in the random access memory, and decompresses and transmits them to the client terminal through the radio transceiving circuit.
- the radio transceiving circuit is also used to receive audio data that are forwarded from the client terminal to the toy car, and transmit such audio data to the microprocessor. After such audio data are decompressed by the audio circuit, an audio output is produced at the speaker.
- the random access memory is further used for storing system files and control instruction sets.
- the power supply module comprises a rechargeable battery, a charging circuit and a charging port.
- the rechargeable battery, the charging circuit and the charging port are connected in series in such order.
- the rechargeable battery is charged based on an arrangement involving the charging circuit and the charging port.
- the power conversion circuit receives the power from the rechargeable battery.
- the charging port is a mini USB interface.
- the program memory is a FLASH memory.
- the random access memory is a RAM.
- the radio transceiving circuit is configured to carry out data transmission via a Wi-Fi short-range wireless local area network.
- the video capturing circuit or the radio transceiving circuit is coupled to the microprocessor via a standard USB interface. It is also optional that both the video capturing circuit and the radio transceiving circuit employ standard USB interfaces to interface with the microprocessor.
- the audio circuit is coupled to the microprocessor through an I2C interface for data exchange.
- the power conversion circuit is coupled to the power supply module via a USB interface.
- FIG. 1 is a schematic block diagram of a remote control toy car in accordance with an exemplary embodiment of the present invention.
- FIG. 2 shows a relationship between a client terminal and the remote control toy car according to an embodiment of the present invention.
- FIG. 1 is a block diagram of a remote control toy car according to an exemplary embodiment of the present invention.
- the remote control toy car comprises a microprocessor 101 , a clock generation circuit 102 , a program memory 103 , a random access memory 104 , a power conversion circuit 105 , a power supply module 106 , a video capturing circuit 107 , a radio transceiving circuit 108 and an audio circuit 109 .
- the remote control toy car is wirelessly communicable with a client terminal, as is shown in FIG. 2 , in which a client terminal 201 is wirelessly communicable with a remote control toy car 1 through a wireless communication means.
- the microprocessor 101 is coupled to the clock generation circuit 102 , the program memory 103 , the random access memory 104 , the power conversion circuit 105 , the video capturing circuit 107 , the radio transceiving circuit 108 and the audio circuit 109 .
- the microprocessor 101 obtains a required working power from the power conversion circuit 105 and one or more required system clock signals from the clock generation circuit 102 .
- the microprocessor 101 is configured to execute one or more processes according to the description hereinafter.
- the toy car starts to work.
- the video capturing circuit 107 and the audio circuit 109 are activated.
- the microprocessor 101 obtains the video data, captured by the video capturing circuit 107 via a camera, and the audio data, captured by the audio circuit 109 via a microphone.
- the microprocessor 101 further processes, compresses, packetizes and stores such video and audio data as video data packets and audio data packets in the random access memory 104 .
- the microprocessor 101 retrieves the video data packets and the audio data packets stored in the random access memory 104 according to the program instructions stored in the program memory 103 , transmits the video data packets and the audio data packets to the client terminal 201 through the radio transceiving circuit 108 .
- the client terminal 201 displays images and to generate audio sound in a real-time manner.
- an audio output is produced by the audio circuit 109 via a speaker.
- an operating system on which the microprocessor 101 executes the one or more processes is a LINUX system whose instruction codes reside in the program memory 103 .
- the clock generation circuit 102 is coupled to the microprocessor 101 and is used to provide the one or more clock signals required by the microprocessor 101 for proper working.
- the program memory 103 is coupled to the microprocessor 101 and is used to store the program instructions for the operation of the microprocessor 101 .
- a FLASH memory is used for the program memory 103 .
- the random access memory 104 is coupled to the microprocessor 101 and is used for randomly accessing the video data packets and the audio data packets, both types of data packets being obtained after compression and packetizing.
- the random access memory 104 may further be used for storing system files and control instruction sets. In one embodiment, a RAM is used.
- the power conversion circuit 105 is coupled to the microprocessor 101 and is used to provide power to the microprocessor 101 and devices coupled thereto for proper operation.
- the power supply module 106 is coupled to the power conversion circuit 105 and is used to provide power to the power conversion circuit 105 .
- the power supply module 106 comprises a rechargeable battery 106 c, a charging circuit 106 b and a charging port 106 a.
- the charging port 106 a may be realized as a mini USB interface, but is not limited to this realization in the present invention.
- the rechargeable battery 106 c, the charging circuit 106 b and the charging port 106 a are connected in series in such order.
- the charging port 106 a is configured to receive external power from outside the remote control toy car.
- the charging circuit 106 b is configured to receive the external power via the charging port 106 a and to convert the external power to an electrical power source, in order to recharge the rechargeable batter 106 c by feeding the electrical power source to the rechargeable battery 106 c.
- the power conversion circuit 105 is powered from the rechargeable battery 106 c.
- the video capturing circuit 107 coupled to the microprocessor 101 , is used to capture and record video data according to the instructions of the microprocessor 101 , and to transmit such video data to the microprocessor 101 for processing, compression and packetizing.
- the radio transceiving circuit 108 is coupled to the microprocessor 101 and is used to receive and transmit the request signal of the client terminal 201 to the microprocessor 101 .
- the microprocessor 101 retrieves the compressed data packets stored in the random access memory 104 , and decompresses and transmits them to the client terminal 201 through the radio transceiving circuit 108 .
- the audio circuit 109 coupled to the microprocessor 101 , is used to acquire audio data according to the instructions of the microprocessor 101 and to transmit such audio data to the microprocessor 101 for processing, compression and packetizing.
- an audio output is produced at the speaker.
- the power conversion circuit 105 is mainly used for power conversion and produces three power supply lines having, e.g., voltages 5V, 3.3V and 1.8V.
- the three power supply lines are used to power the camera, the microprocessor 101 and a Wi-Fi module, respectively.
- examples of voltage values are provided for the aforesaid three power supply lines, a skilled person in the art may modify any of the voltage values according to the actual situation in order to achieve the most desirable effect in implementation; therefore, the aforesaid voltage values are not defined herein in the specification.
- the radio transceiving circuit 108 comprises a radio-frequency circuit board and an antenna (which may be an internal antenna or an external antenna and is therefore not defined herein in the specification).
- the radio transceiving circuit 108 may perform data exchange with the client terminal 201 via a Wi-Fi short-range wireless local area network.
- the video capturing circuit 107 includes a camera-interfacing circuit for interfacing with the camera and with the microprocessor 101 .
- the audio circuit 109 includes an audio circuit board for interfacing with the microphone and with the speaker.
- the video capturing circuit 107 or the radio transceiving circuit 108 is coupled to the microprocessor 101 via a standard USB interface, and the charging port of the power supply module 106 uses a mini USB interface. It is optional that both the video capturing circuit 107 and the radio transceiving circuit 108 employ standard USB interfaces to interface with the microprocessor 101 .
- FIG. 2 is a block diagram showing the connection between the client terminal 201 and a remote control toy car 1 in accordance with an embodiment of the present invention.
- the client terminal 201 may be an Android smart phone, an IOS mobile phone, a tablet PC, a mobile computer, etc., and it is not specifically defined herein in the specification.
- a person skilled in the art can use a reasonably selected device as the client terminal 201 according to the actual situation and the geographical condition. This reasonably selected device is not defined herein in the specification.
- the remote control toy car has a compact size and is convenient to carry, ready to use and simple to operate. In addition, it has a built-in rechargeable battery, so that an external power supply is not required.
- the toy car After the toy car has established a wireless link with a smart mobile terminal that supports Wi-Fi wireless functions, wireless video playing can be achieved and there is no need to install standalone software in the smart mobile terminal. After the video clip transmitted from the toy car is received, picture taking and video recording can be achieved via the smart mobile terminal.
- the toy car disclosed herein is wirelessly communicable with a client terminal (e.g., a Tablet PC, a smart phone and any other similar device) for transmission of audio and video data within a certain range. Moreover, the toy car enables the surveillance images acquired by the toy car to be displayed at the client terminal in a real-time manner.
- a client terminal e.g., a Tablet PC, a smart phone and any other similar device
Abstract
This invention discloses a remote control toy car wirelessly communicable with a client terminal and configured to support wireless real-time transmission of video and audio signals. The toy car comprises a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, an audio circuit and a radio transceiving circuit. The toy car is compact, convenient to carry, ready to use and simple to operate. Furthermore, it has a rechargeable battery. When the toy car is wirelessly linked to a smart mobile terminal with Wi-Fi functions, wireless video playing can be achieved, and no settings are required for the smart mobile terminal. Picture taking and audio/video recording can be achieved by the smart mobile terminal. The toy car can also produce an audio output upon receiving audio data packets sent from the client terminal.
Description
- A portion of the disclosure of this patent document contains material, which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
- The present invention relates generally to a remote control toy car. In particular, this invention relates to a remote control toy car that supports wireless real-time transmission of audio and video signals.
- Existing remote-monitoring products typically employ cables for transmitting audio and video signals captured at remote sites to control centers. Installation of these products requires installation of wired networks. Another constraint of these products is that the captured audiovisual data can be viewed and listened to only at fixed locations. Furthermore, these products are usually bulky so that it is not convenient to transport them from one place to another. It is also noted a constraint that these products can be operated only if external power is available for powering these products.
- In some industrial, entertainment and home applications, there is interest to enable a remote control toy car to achieve wireless real-time transmission of audio and video data captured at a remote location by the toy car. The audiovisual data are wirelessly transmitted from the toy car to a client's terminal for seeing and hearing by the client. Using techniques that realize remote-monitoring products to implement this toy car is not preferable because of the aforementioned constraints of the remote-monitoring products.
- Thus, there is a need in the art for a remote control toy car that supports wireless real-time transmission of audiovisual data and that is small in size, easy to carry and without the need to connect to an external power supply during operation.
- The present invention provides a remote control toy car that supports wireless real-time transmission of audiovisual data and that does not have the above-mentioned constraints of existing remote-monitoring products, that is, big size, inconvenience to carry and the need to connect to an external power supply during operation.
- To address the above-mentioned requirements, the present invention provides a remote control toy car comprising a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, an audio circuit and a radio transceiving circuit.
- The microprocessor is coupled to the clock generation circuit, the program memory, the random access memory, the power conversion circuit, the video capturing circuit, the audio circuit and the radio transceiving circuit, so as to obtain the required working power from the power conversion circuit and one or more clock signals from the clock generation circuit. When the toy car including the microprocessor is power-up initialized, the microprocessor activates the video capturing circuit and the audio circuit. According to instructions stored in the program memory, the microprocessor obtains video and audio data, and further processes, compresses, packetizes and stores such data in the random access memory. The microprocessor is coupled to the radio transceiving circuit. After receiving a request signal from a client terminal via the radio transceiving circuit, the microprocessor retrieves the audio and video data packets stored in the random access memory according to the instructions stored in the program memory, transmits them to the client terminal through the radio transceiving circuit, thereby allowing the client terminal to display images and generate audio output in a real-time manner according to the audio and video data packets. In another use, after the toy car receives audio data packets wirelessly sent by the client terminal and after such packets are processed by the audio circuit, an audio output is produced via a speaker. The microprocessor runs with power provided by the power conversion circuit, receives the video data acquired by the video capturing circuit according to the instructions stored in the program memory, and packetizes, compresses and sends the resultant compressed, packetized video data to the client terminal through the radio transceiving circuit. The microprocessor receives the audio data acquired by the audio circuit according to the instructions stored in the program memory, and packetizes, compresses and sends the resultant compressed, packetized audio data to the client terminal through the radio transceiving circuit.
- The clock generation circuit is coupled to the microprocessor and is used to provide the one or more clock signals required by the microprocessor for proper working.
- The program memory is coupled to the microprocessor and is used to store the program instructions for the operation of the microprocessor.
- The random access memory is coupled to the microprocessor and is used for randomly accessing audio and video data packets stored therein.
- The power conversion circuit is coupled to the microprocessor and is used to provide power to the microprocessor and devices coupled thereto for proper operation.
- The power supply module is coupled to the power conversion circuit and is used to provide power to the power conversion circuit.
- The video capturing circuit, coupled to the microprocessor, is used to acquire video data according to instructions of the microprocessor, and to transmit such video data to the microprocessor for processing, compression and packetizing.
- The audio circuit is coupled to the microprocessor and is used to transmit the audio data acquired by a microphone to the microprocessor for processing, compression and packetizing. In another use, after audio data packets sent by the client terminal through the radio transceiving circuit are received, and after such packets are processed by the audio circuit, an audio output is produced via the speaker.
- The radio transceiving circuit, coupled to the microprocessor, is used to receive the request signal issued from the client terminal and send the request signal to the microprocessor. The microprocessor retrieves the compressed video/audio data packets stored in the random access memory, and decompresses and transmits them to the client terminal through the radio transceiving circuit. The radio transceiving circuit is also used to receive audio data that are forwarded from the client terminal to the toy car, and transmit such audio data to the microprocessor. After such audio data are decompressed by the audio circuit, an audio output is produced at the speaker.
- Optionally, the random access memory is further used for storing system files and control instruction sets.
- Optionally, the power supply module comprises a rechargeable battery, a charging circuit and a charging port. The rechargeable battery, the charging circuit and the charging port are connected in series in such order. The rechargeable battery is charged based on an arrangement involving the charging circuit and the charging port. The power conversion circuit receives the power from the rechargeable battery.
- Optionally, the charging port is a mini USB interface.
- Optionally, the program memory is a FLASH memory.
- Optionally, the random access memory is a RAM.
- Optionally, the radio transceiving circuit is configured to carry out data transmission via a Wi-Fi short-range wireless local area network.
- Optionally, the video capturing circuit or the radio transceiving circuit is coupled to the microprocessor via a standard USB interface. It is also optional that both the video capturing circuit and the radio transceiving circuit employ standard USB interfaces to interface with the microprocessor.
- Optionally, the audio circuit is coupled to the microprocessor through an I2C interface for data exchange.
- Optionally, the power conversion circuit is coupled to the power supply module via a USB interface.
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FIG. 1 is a schematic block diagram of a remote control toy car in accordance with an exemplary embodiment of the present invention. -
FIG. 2 shows a relationship between a client terminal and the remote control toy car according to an embodiment of the present invention. - The present invention is described in detail through the embodiments elaborated hereinafter with the drawings. However, it is understood that the present invention is not limited to these embodiments.
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FIG. 1 is a block diagram of a remote control toy car according to an exemplary embodiment of the present invention. The remote control toy car comprises amicroprocessor 101, aclock generation circuit 102, aprogram memory 103, arandom access memory 104, apower conversion circuit 105, apower supply module 106, a video capturingcircuit 107, aradio transceiving circuit 108 and anaudio circuit 109. The remote control toy car is wirelessly communicable with a client terminal, as is shown inFIG. 2 , in which aclient terminal 201 is wirelessly communicable with a remotecontrol toy car 1 through a wireless communication means. - The
microprocessor 101 is coupled to theclock generation circuit 102, theprogram memory 103, therandom access memory 104, thepower conversion circuit 105, thevideo capturing circuit 107, theradio transceiving circuit 108 and theaudio circuit 109. Themicroprocessor 101 obtains a required working power from thepower conversion circuit 105 and one or more required system clock signals from theclock generation circuit 102. - The
microprocessor 101 is configured to execute one or more processes according to the description hereinafter. In power-up initialization of themicroprocessor 101, the toy car starts to work. In particular, thevideo capturing circuit 107 and theaudio circuit 109 are activated. According to instructions stored in theprogram memory 103, themicroprocessor 101 obtains the video data, captured by thevideo capturing circuit 107 via a camera, and the audio data, captured by theaudio circuit 109 via a microphone. Themicroprocessor 101 further processes, compresses, packetizes and stores such video and audio data as video data packets and audio data packets in therandom access memory 104. After a request signal from theclient terminal 201 transmitted via theradio transceiving circuit 108 is received at the toy car, themicroprocessor 101 retrieves the video data packets and the audio data packets stored in therandom access memory 104 according to the program instructions stored in theprogram memory 103, transmits the video data packets and the audio data packets to theclient terminal 201 through theradio transceiving circuit 108. Thus, it allows theclient terminal 201 to display images and to generate audio sound in a real-time manner. In another use, after audio data packets sent by theclient terminal 201 are received at the toy car via theradio transceiving circuit 108, and after such packets are processed by theaudio circuit 109, an audio output is produced by theaudio circuit 109 via a speaker. In one embodiment, an operating system on which themicroprocessor 101 executes the one or more processes is a LINUX system whose instruction codes reside in theprogram memory 103. - The
clock generation circuit 102 is coupled to themicroprocessor 101 and is used to provide the one or more clock signals required by themicroprocessor 101 for proper working. - The
program memory 103 is coupled to themicroprocessor 101 and is used to store the program instructions for the operation of themicroprocessor 101. In one embodiment, a FLASH memory is used for theprogram memory 103. - The
random access memory 104 is coupled to themicroprocessor 101 and is used for randomly accessing the video data packets and the audio data packets, both types of data packets being obtained after compression and packetizing. Therandom access memory 104 may further be used for storing system files and control instruction sets. In one embodiment, a RAM is used. - The
power conversion circuit 105 is coupled to themicroprocessor 101 and is used to provide power to themicroprocessor 101 and devices coupled thereto for proper operation. - The
power supply module 106 is coupled to thepower conversion circuit 105 and is used to provide power to thepower conversion circuit 105. In one embodiment, thepower supply module 106 comprises arechargeable battery 106 c, a chargingcircuit 106 b and a chargingport 106 a. The chargingport 106 a may be realized as a mini USB interface, but is not limited to this realization in the present invention. Therechargeable battery 106 c, the chargingcircuit 106 b and the chargingport 106 a are connected in series in such order. The chargingport 106 a is configured to receive external power from outside the remote control toy car. The chargingcircuit 106 b is configured to receive the external power via the chargingport 106 a and to convert the external power to an electrical power source, in order to recharge therechargeable batter 106 c by feeding the electrical power source to therechargeable battery 106 c. Thepower conversion circuit 105 is powered from therechargeable battery 106 c. - The
video capturing circuit 107, coupled to themicroprocessor 101, is used to capture and record video data according to the instructions of themicroprocessor 101, and to transmit such video data to themicroprocessor 101 for processing, compression and packetizing. - The
radio transceiving circuit 108 is coupled to themicroprocessor 101 and is used to receive and transmit the request signal of theclient terminal 201 to themicroprocessor 101. Themicroprocessor 101 retrieves the compressed data packets stored in therandom access memory 104, and decompresses and transmits them to theclient terminal 201 through theradio transceiving circuit 108. - The
audio circuit 109, coupled to themicroprocessor 101, is used to acquire audio data according to the instructions of themicroprocessor 101 and to transmit such audio data to themicroprocessor 101 for processing, compression and packetizing. In another use, after audio data packets sent by theclient terminal 201 via theradio transceiving circuit 108 are received, and after such packets are processed by theaudio circuit 109, an audio output is produced at the speaker. - In one embodiment, the
power conversion circuit 105 is mainly used for power conversion and produces three power supply lines having, e.g., voltages 5V, 3.3V and 1.8V. The three power supply lines are used to power the camera, themicroprocessor 101 and a Wi-Fi module, respectively. Although examples of voltage values are provided for the aforesaid three power supply lines, a skilled person in the art may modify any of the voltage values according to the actual situation in order to achieve the most desirable effect in implementation; therefore, the aforesaid voltage values are not defined herein in the specification. - In one embodiment, the
radio transceiving circuit 108 comprises a radio-frequency circuit board and an antenna (which may be an internal antenna or an external antenna and is therefore not defined herein in the specification). Theradio transceiving circuit 108 may perform data exchange with theclient terminal 201 via a Wi-Fi short-range wireless local area network. - In one embodiment, the
video capturing circuit 107 includes a camera-interfacing circuit for interfacing with the camera and with themicroprocessor 101. - In one embodiment, the
audio circuit 109 includes an audio circuit board for interfacing with the microphone and with the speaker. - In one embodiment, the
video capturing circuit 107 or theradio transceiving circuit 108 is coupled to themicroprocessor 101 via a standard USB interface, and the charging port of thepower supply module 106 uses a mini USB interface. It is optional that both thevideo capturing circuit 107 and theradio transceiving circuit 108 employ standard USB interfaces to interface with themicroprocessor 101. -
FIG. 2 is a block diagram showing the connection between theclient terminal 201 and a remotecontrol toy car 1 in accordance with an embodiment of the present invention. Theclient terminal 201 may be an Android smart phone, an IOS mobile phone, a tablet PC, a mobile computer, etc., and it is not specifically defined herein in the specification. A person skilled in the art can use a reasonably selected device as theclient terminal 201 according to the actual situation and the geographical condition. This reasonably selected device is not defined herein in the specification. - The remote control toy car according to the disclosure herein has a compact size and is convenient to carry, ready to use and simple to operate. In addition, it has a built-in rechargeable battery, so that an external power supply is not required. After the toy car has established a wireless link with a smart mobile terminal that supports Wi-Fi wireless functions, wireless video playing can be achieved and there is no need to install standalone software in the smart mobile terminal. After the video clip transmitted from the toy car is received, picture taking and video recording can be achieved via the smart mobile terminal.
- The toy car disclosed herein is wirelessly communicable with a client terminal (e.g., a Tablet PC, a smart phone and any other similar device) for transmission of audio and video data within a certain range. Moreover, the toy car enables the surveillance images acquired by the toy car to be displayed at the client terminal in a real-time manner.
- It is apparent that the present invention can be realized in a variety of other embodiments. Those skilled in the art can make various changes and modifications based on the invention without departing from the spirit and substance of the invention by having these changes and modifications within the scope as defined in the appended claims.
Claims (10)
1. A remote control toy car wirelessly communicable with a client terminal and configured to support wireless real-time transmission of audio and video signals, the toy car comprising a microprocessor, a clock generation circuit, a program memory, a random access memory, a power conversion circuit, a power supply module, a video capturing circuit, a radio transceiving circuit and an audio circuit, wherein:
the microprocessor, coupled to the clock generation circuit, the program memory, the random access memory, the power conversion circuit, the video capturing circuit, the radio transceiving circuit and the audio circuit, is configured to execute one or more processes comprising:
after power-up initialization of the microprocessor, activating the video capturing circuit and the audio circuit;
according to instructions stored in the program memory, obtaining captured video data from the video capturing circuit and captured audio data from the audio circuit, followed by further processing, compressing and packetizing the captured video data and the captured audio data to yield first video data packets and first audio data packets, and storing the first video data packets and the first audio data packets in the random access memory;
when the microprocessor receives via the radio transceiving circuit a request signal issued from the client terminal, retrieving the first video data packets and the first audio data packets from the random access memory according to the instructions stored in the program memory, and forwarding the first video data packets and the first audio data packets to the client terminal through the radio transceiving circuit, thereby allowing the client terminal to display images and generate audio sound in a real-time manner according to the first video data packets and the first audio data packets; and
when the microprocessor receives via the radio transceiving circuit second audio data packets wirelessly sent from the client terminal, forwarding the second audio data packets to the audio circuit for processing in order to produce an audio output via a speaker;
the clock generation circuit is configured to provide one or more clock signals required by the microprocessor;
the power conversion circuit is used for providing power to the microprocessors and devices coupled thereto; and
the power supply module, coupled to the power conversion circuit, is used for providing power to the power conversion circuit.
2. The remote control toy car of claim 1 , wherein the random access memory is further used for storing system files and control instruction sets.
3. The remote control toy car of claim 1 , wherein the power supply module comprises:
a rechargeable battery configured to provide power to the power conversion circuit;
a charging port configured to receive external power from outside the remote control toy car; and
a charging circuit coupled to the rechargeable battery and the charging port, configured to receive the external power via the charging port and to convert the external power into an electrical power source, so as to allow the rechargeable battery to be recharged when the electrical power source is fed to the rechargeable battery.
4. The remote control toy car of claim 3 , wherein the charging port is a mini USB interface.
5. The remote control toy car of claim 1 , wherein the program memory is a FLASH memory.
6. The remote control toy car of claim 1 , wherein the random access memory is a RAM.
7. The remote control toy car of claim 1 , wherein the radio transceiving circuit is configured to carry out data transmission via a Wi-Fi short-range wireless local area network.
8. The remote control toy car of claim 1 , wherein the audio circuit is coupled to the microprocessor via an I2C interface for data exchange.
9. The remote control toy car of claim 1 , wherein the video capturing circuit or the radio transceiving circuit is coupled to the microprocessor via a standard USB interface.
10. The remote control toy car of claim 1 , wherein the power conversion circuit is coupled to the power supply module via a USB interface.
Priority Applications (1)
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US13/761,169 US20140218524A1 (en) | 2013-02-07 | 2013-02-07 | Remote control toy car with wireless real-time transmission of audio and video signals |
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US13/761,169 US20140218524A1 (en) | 2013-02-07 | 2013-02-07 | Remote control toy car with wireless real-time transmission of audio and video signals |
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US20140218524A1 true US20140218524A1 (en) | 2014-08-07 |
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US13/761,169 Abandoned US20140218524A1 (en) | 2013-02-07 | 2013-02-07 | Remote control toy car with wireless real-time transmission of audio and video signals |
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