CN2785036Y - Wireless laser remote control pen - Google Patents

Abstract

The utility model discloses a wireless laser remote control pen, it comprises laser pen and the receiver two parts that have wireless transmitting function. An RF radio frequency transmitting circuit capable of transmitting wireless signals is installed in the laser pen, and a signal receiving circuit used for receiving the RF radio frequency signals transmitted by the laser pen is installed in the receiver. When a user presses a key on the laser pen for controlling the computer to turn up or down, the RF circuit in the laser pen can transmit the signal out in an RF mode through the antenna. And after receiving the signal, an RF signal receiving circuit in the receiver processes the signal, transmits the processed signal to a computer mainboard through a USB plug on the receiver and a USB interface on a computer, and operates the computer to turn up or down the pages.

Description

wireless laser remote pen

technical field

The utility model relates to a laser pointer, in particular to a laser pointer which can remotely operate a computer in a wireless manner.

Background technique

In lectures, bidding, conference speeches, new product releases, etc., in order to make the audience better understand the content of the speech, the speaker usually inputs some materials related to the topic of the speech into the computer in advance. The projector demonstrates. In order to facilitate the presentation, the speaker usually stands next to the computer and operates the computer while giving a speech.

The advantage of this way of speaking is that it can firmly attract the attention of the audience, and it is easy for the audience to understand and remember the content of the speech. However, there are also some disadvantages in this way of speaking: 1. It limits the range of activities of the speaker on the podium, and shortens the distance between the speaker and the audience. Because the speaker has to operate the computer continuously while giving a speech, so in order to operate the computer timely and accurately, he can only stand beside the computer. 2. When the speaker reaches the climax of his speech, his passion, thoughts and actions are often interrupted by the actions of flipping through computer files again and again, which makes the speaker feel very embarrassed.

Contents of the invention

In view of the above reasons, the purpose of this utility model is to provide a wireless laser remote control pen. The laser remote control pen is not only a laser pen, but more importantly, it can remotely operate a computer and browse computer files through wireless mode.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a wireless laser remote control pen, which is composed of a laser pen with a wireless emission function and a receiver;

The laser pointer is composed of a housing and a radio frequency transmitting circuit that is installed in the housing and can emit wireless signals; on the surface of the housing, a laser emitting button, a computer page-turning button, a computer page-turning button, a laser emitting light and Transmitting antenna; the laser emitting button is connected in series in the laser emitting lamp power supply circuit to control whether the laser emitting lamp D emits light. Transmit page-up and page-down signals to operate the computer;

The receiver is composed of a housing and a radio frequency signal receiving circuit installed in the housing; a USB plug is provided at one end of the housing, and the USB plug is connected to the signal output end of the radio frequency signal receiving circuit in the housing; The other end is provided with an antenna for receiving radio frequency signals, which is connected to the radio frequency signal receiving circuit in the casing; the radio frequency signal receiving circuit is used to convert the radio frequency signals emitted by the laser pointer to control computer actions into high and low The level control signal is transmitted to the computer motherboard through the USB plug and the computer USB interface to control the computer to turn pages up or down.

The radio frequency transmitting circuit is an RF radio frequency transmitting circuit; the radio frequency signal receiving circuit is an RF radio frequency signal receiving circuit.

The radio frequency transmitting circuit is mainly composed of an encoding chip, an RF radio frequency transmitting circuit, a signal modulation circuit and a 5V voltage stabilizing chip; the 5V voltage stabilizing chip mainly converts a 12V power supply into a 5V DC power supply, and provides a 5V power supply for the encoding chip and the laser emitting lamp One end of the page-turning button of the computer is connected with the 12V power supply, and the other end is connected with the signal input terminal of the encoding chip after being stepped down by a resistor; one end of the page-turning button of the computer is connected with the 12V power supply, and the other end is dropped by a resistor After pressing, it is connected to the signal input terminal of the coding chip; the signal output terminal of the coding chip is connected to the signal input terminal signal of the signal modulation circuit, and the signal output terminal of the signal modulation circuit is connected to the signal input terminal of the RF radio frequency transmitting circuit; the control terminal of the coding chip Provide 12V working power for the RF radio frequency transmitting circuit through the switch tube.

Described signal receiving circuit is mainly made up of RF signal receiving circuit, demodulation chip, microprocessor chip; The signal output end of RF signal receiving circuit is connected with the signal input end ANI of demodulation chip, and the serial data output end of demodulation chip It is connected with the I/O port of the microprocessor chip, and the D-/SDATA, D+/SCLK ports of the microprocessor chip are connected with the USB plug on the receiver shell.

When the user presses the button on the laser pointer to control the computer to turn the page up or down, the RF radio frequency circuit in the laser pointer can transmit the signal through the antenna in the form of RF radio frequency. After the RF signal receiving circuit in the receiver receives the signal, it processes the signal and transmits it to the main board of the computer through the USB plug on the receiver and the USB interface on the computer after processing, so as to operate the computer to turn pages up or down.

Since the utility model adopts the above technical scheme, the utility model has the outstanding advantages that: when the speaker makes a speech, the computer can be remotely controlled and operated wirelessly; it is easy to use, small in size and easy to carry.

Description of drawings

Fig. 1 is the structural representation of the laser pen with wireless emission function of the utility model

Fig. 2 is the structural schematic diagram of the utility model receiver

Fig. 3 is the specific circuit diagram of the wireless transmission circuit of the present invention

Fig. 4 is the specific circuit diagram of the wireless receiving circuit of the present invention

Detailed ways

As shown in Fig. 1 and Fig. 2, the wireless laser remote control pen disclosed by the utility model is composed of a laser pen 1 and a receiver 2 with a wireless transmitting function.

The laser pointer 1 is composed of a casing 11 and a radio frequency transmitting circuit 12 (as shown in FIG. 3 ) installed in the casing 11 and capable of transmitting wireless signals. A laser emitting button S1 , a computer page down button S2 , a computer page up button S3 , a laser emitting lamp D and a transmitting antenna T are installed on the surface of the housing 11 . The laser emitting button S1 is connected in series in the power circuit of the laser emitting lamp D to control whether the laser emitting lamp D emits light. Whether the circuit 12 emits a signal to turn the page up or down to operate the computer.

The receiver 2 is composed of a housing 21 and an RF signal receiving circuit 22 installed in the housing 21 (as shown in FIG. 4 ). One end of the housing 21 is provided with a USB plug 23, which is connected to the signal output end of the RF signal receiving circuit 22 in the housing 21; the other end of the housing 21 is provided with an antenna T for receiving RF radio frequency signals , the antenna is connected to the RF signal receiving circuit 22 in the housing 21 for receiving the signal emitted by the RF transmitting circuit 12 in the laser pointer 1 . The RF signal receiving circuit 22 is used to convert the RF radio frequency signal emitted by the laser pointer 1 to control the action of the computer into high and low level control signals, which are transmitted to the computer motherboard through the USB plug 23 and the computer USB interface to control the computer to turn pages or turn pages down. Page.

FIG. 3 is a specific circuit diagram of the wireless transmitting circuit installed in the laser pointer 1 . As shown in the figure, the wireless transmitting circuit is an RF transmitting circuit, which is mainly composed of an encoding chip IC1 (12C508), an RF transmitting circuit 121, a signal modulating circuit 122 and a 5V regulator chip IC2 (XC6202). The 12V power supply is regulated by the 5V voltage regulator chip IC2 and outputs a 5V DC power supply to provide 5V power for the encoding chip IC1 and the laser emitting lamp D.

The laser emission button S1 is connected in series in the power circuit of the laser emission light D, press S1, the power input terminal of the voltage stabilizing chip IC2 is connected to the 12V power supply, and its output terminal outputs a 5V DC power supply VCC, the coding chip IC1 works, and the first IC1 Pin 7 outputs low level, through the socket J7, the laser emitting lamp D is energized; release the button S1, the power input terminal of the voltage regulator chip IC2 is connected to the 12V power supply terminal, and the output terminal of IC2 does not output 5V DC power supply, and the encoding chip IC1 If it does not work, pin 7 of IC1 outputs a high level, and the laser emitting light D goes out.

One end of the computer page-down button S2 is connected to the 12V power supply, and the other end is connected to the signal input terminal CP1 (pin 6) of the encoding chip IC1 after being stepped down by resistors R8 and R9. At the same time, the other end of the computer page-down button S2 It is also connected to the power input terminal of the voltage regulator chip IC2 through the diode D2. One end of the page-turning button S3 on the computer is connected to the 12V power supply, and the other end is connected to the signal input terminal CP2 (pin 5) of the encoding chip IC1 after being stepped down by resistors R6 and R7. At the same time, the other end of the page-turning button S3 on the computer is It is also connected to the power input terminal of the voltage regulator chip IC2 through the diode D1. The signal output terminal CP4 (pin 3) of the encoding chip IC1 and the signal input terminal signal of the signal modulation circuit 122 (resistance R2, transistor Q1, J crystal oscillator Y1, capacitors C1, C2, inductor L2), and the signal output of the signal modulation circuit 122 The end is connected with the signal input end of the RF radio frequency transmitting circuit 121. In addition, the control terminal CPS (pin 2 ) of the encoding chip IC1 provides 12V working power for the RF transmitting circuit 121 through the switch tube Q4 .

When the page-turning button S2 of the computer is pressed, the voltage stabilizing chip IC2 starts to work to provide 5V working power for the coding chip IC1, and the coding chip IC1 works. Because the page-turning button S2 is pressed, the signal input terminal CP1 of the encoding chip IC1 is at a high level, the control terminal CPS of the encoding chip IC1 outputs a high level, the switching tube (transistor) Q4 is turned on, and the RF radio frequency transmitting circuit 121 Connected with 12V power supply, it can work. This design is for energy saving, and the RF radio frequency circuit does not consume power when it is not in use; The pulse signal is modulated by the signal modulating circuit 122 into a signal with a frequency of 315 MHz, which is transmitted to the RF transmitting circuit 121 and then transmitted by the RF transmitting circuit 121 .

Similarly, when the page-turning button S3 on the computer is pressed, the voltage regulator chip IC2 starts to work to provide 5V working power for the coding chip IC1, and the coding chip IC1 works. Because the page-turning button S3 is pressed, the signal input terminal CP2 of the encoding chip IC1 is at a high level, the control terminal CPS of the encoding chip IC1 outputs a high level, the switching tube (transistor) Q4 is turned on, and the RF radio frequency transmitting circuit 121 Connected to the 12V power supply, it can work; at this time, the signal output terminal CP4 of the encoding chip IC1 outputs an up-turning encoding pulse signal, and the up-turning encoding pulse signal is modulated by the signal modulation circuit 122 into a signal with a frequency of 315MHz and transmitted to RF The radio frequency transmitting circuit 121 transmits from the RF radio frequency transmitting circuit 121 .

Fig. 4 is a specific circuit diagram of the wireless receiving circuit installed in the receiver. As shown in the figure, the circuit is mainly composed of an RF signal receiving circuit 221, a demodulation chip IC1 (MICRF011), and a microprocessor chip IC2 (CY7C63723-SC). The signal output end of the RF signal receiving circuit 221 is connected with the signal input end ANI (the 4th pin) of the demodulation chip IC1, and the serial data output end CTH (the 8th pin) of IC1 is connected with the I/O of the microprocessor chip IC2 The port P0.0 is connected, the D-/SDATAD+/SCLK port (12th and 13th pins) of the microprocessor chip IC2 is connected with the USB port of the computer through the USB plug, and the signal emitted by the laser pointer 1 received by the RF signal receiving circuit is Convert it into data and transmit it to the computer; it will be processed by the computer system and perform related operations.

When people press the computer page down button S2 or the computer page up button S3, the signal is transmitted to the receiver 2 through the RF radio frequency transmitting circuit in the laser pointer 1 through the antenna T in the form of RF radio frequency, and the receiver 2 passes through the antenna T Receive the signal, convert it into serial data through the RF signal receiving circuit 221 and the demodulation chip IC1 in the receiver 2, and transmit it to the microprocessor chip IC2, and the microprocessor chip IC2 converts the signal into a signal that can be received by USB , and then, through the USB plug connected to the computer USB interface, it is transmitted to the computer motherboard to control the computer to turn pages up or down.

In addition, a light-emitting diode (LED) is externally connected to pin 14 of the main control chip IC2. When the receiver 2 is just working, the LED flashes continuously. Light up again to show the working status of receiver 2.

The above descriptions are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto. Any equivalent transformation based on the technical solution of the utility model falls within the protection scope of the utility model.

Claims (4)

1. A wireless laser remote control pen, characterized in that: it is composed of a laser pen with a wireless transmitting function and a receiver; The laser pointer is composed of a housing and a radio frequency transmitting circuit that is installed in the housing and can emit wireless signals; on the surface of the housing, a laser emitting button, a computer page-turning button, a computer page-turning button, a laser emitting light and Transmitting antenna; the laser emitting button is connected in series in the laser emitting lamp power supply circuit to control whether the laser emitting lamp D emits light. Transmit page-up and page-down signals to operate the computer; The receiver is composed of a housing and a radio frequency signal receiving circuit installed in the housing; a USB plug is provided at one end of the housing, and the USB plug is connected to the signal output end of the radio frequency signal receiving circuit in the housing; The other end is provided with an antenna for receiving radio frequency signals, and the antenna is connected with the radio frequency signal receiving circuit in the casing. 2. A wireless laser remote control pen according to claim 1, characterized in that: the radio frequency transmitting circuit is an RF radio frequency transmitting circuit; the radio frequency signal receiving circuit is an RF radio frequency signal receiving circuit. 3. A wireless laser remote control pen according to claim 2, characterized in that: the radio frequency transmitting circuit is mainly composed of an encoding chip, an RF radio frequency transmitting circuit, a signal modulation circuit and a 5V voltage stabilizing chip; The 5V voltage regulator chip mainly converts the 12V power supply into 5V DC power supply, and provides 5V power supply for the encoding chip and laser emitting lamp; One end of the page-turning button on the computer is connected to the 12V power supply, and the other end is connected to the signal input terminal of the coding chip after being stepped down by a resistor; one end of the page-turning button on the computer is connected to the 12V power supply, and the other end is stepped down by a resistor After that, it is connected with the signal input terminal of the coding chip; the signal output terminal of the coding chip is connected with the signal input terminal signal of the signal modulation circuit, and the signal output terminal of the signal modulation circuit is connected with the signal input terminal of the RF radio frequency transmitting circuit; the control terminal of the coding chip is connected through The switch tube provides 12V working power for the RF radio frequency transmitting circuit. 4. A wireless laser remote control pen according to claim 1, 2 or 3, characterized in that: the signal receiving circuit is mainly composed of an RF signal receiving circuit, a demodulation chip, and a microprocessor chip; The signal output end of the RF signal receiving circuit is connected with the signal input end ANI of the demodulation chip, the serial data output end of the demodulation chip is connected with the I/O port of the microprocessor chip, and the D-/SDATA, The D+/SCLK port is connected to the USB plug on the receiver shell.

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