Device for expanding use range of infrared remote controller

Abstract

The utility model relates to an infrared remote controller application range expanding device, which comprises a first signal switching unit and a second signal switching unit, the first signal switching unit comprises an infrared receiver, a first signal conversion module and a first Bluetooth module, the infrared receiver receives infrared signals emitted by a remote controller, and the first signal conversion module is connected with the first Bluetooth module. The first signal conversion module converts the infrared signal into an electric signal, and the first Bluetooth module sends out the electric signal. The second signal switching unit comprises a second Bluetooth module, a second signal conversion module and an infrared transmitter, the second Bluetooth module is in wireless connection with the first Bluetooth module, the second Bluetooth module receives an electric signal sent by the first Bluetooth module, the second signal conversion module converts the electric signal into an infrared signal, and the infrared transmitter transmits the infrared signal to the second Bluetooth module. The infrared transmitter is used for transmitting an infrared signal to a remotely controlled device. According to the device, the application range of the remote controller can be effectively expanded, the infrared remote controller is expanded into remote control equipment which is long-distance, full-angle and capable of being shielded, and the problem that the application range of the infrared remote controller is limited is solved.

Description

Technical Field

[0001] This utility model belongs to the field of remote control technology, specifically relating to an infrared remote control application range extension device. Background Technology

[0002] Infrared remote controls are widely used in home appliance control and other fields due to their ease of use, low price, and mature technology. The transmitting circuit of an infrared remote control uses infrared light-emitting diodes to emit modulated infrared light waves. When a command key is pressed, the command encoding circuit generates the required command encoding signal. This signal modulates the carrier wave, is then amplified by the drive circuit, and transmitted by the transmitting circuit. The receiving circuit receives the modulated coded command signal from the transmitter, amplifies it, and sends it to the demodulation circuit. The demodulation circuit demodulates the modulated command encoding signal, and finally, the drive circuit drives the execution circuit to implement various command operation controls.

[0003] Traditional home appliances are mostly controlled by infrared remote controls. However, due to the linear propagation characteristics of infrared light and its significant attenuation in the air, infrared remote controls have relatively low transmission power. As a result, they have problems such as short operating distance, inability to effectively send commands when obstructed by objects, and a small remote control angle range, which make them inconvenient to use. Utility Model Content

[0004] In view of this, the present invention provides an infrared remote control range extension device, which can effectively extend the range of use of the remote control, extending the infrared remote control into a long-distance, all-angle, and obstructible remote control device, thus solving the problem of limited range of use of infrared remote controls.

[0005] The technical solution of this utility model is:

[0006] An infrared remote control range extension device includes:

[0007] A first signal conversion unit is used to be fixed at the infrared transmitter port of the remote control. The first signal conversion unit includes an infrared receiver, a first signal conversion module and a first Bluetooth module. The infrared receiver is electrically connected to the first signal conversion module and the first signal conversion module is electrically connected to the first Bluetooth module. The infrared receiver is used to receive the infrared signal emitted by the remote control. The first signal conversion module converts the infrared signal into an electrical signal and the first Bluetooth module emits the electrical signal.

[0008] The second signal conversion unit is fixed at the infrared receiver port of the remotely controlled device. The second signal conversion unit includes a second Bluetooth module, a second signal conversion module, and an infrared transmitter. The second Bluetooth module is wirelessly connected to the first Bluetooth module, and the second Bluetooth module is electrically connected to the second signal conversion module. The second signal conversion module is electrically connected to the infrared transmitter. The second Bluetooth module receives the electrical signal emitted by the first Bluetooth module, and the second signal conversion module converts the electrical signal into an infrared signal. The infrared transmitter is used to emit the infrared signal to the remotely controlled device.

[0009] Preferably, the first signal transfer unit further includes a first housing, a first transparent plate, and a first reflector. One side of the first housing is an opening, and the first transparent plate is disposed at the opening. The first reflector is disposed inside the first housing. The infrared receiver is disposed between the first transparent plate and the first reflector. The first transparent plate is used to fix the infrared transmitter of the remote control.

[0010] Preferably, the first reflector is configured as a square pyramid, the infrared receiver is disposed at the small end of the first reflector, and the first transparent plate is disposed at the large end of the first reflector.

[0011] Preferably, the angle between the two surfaces of the first reflector is 90°-120°.

[0012] Preferably, a transparent adhesive is provided on the side of the first transparent plate opposite to the first reflector, and the transparent adhesive is used to bond with the remote control.

[0013] Preferably, both the first signal conversion module and the first Bluetooth module are disposed within the first housing, and the first signal conversion module and the first Bluetooth module are located on the side of the first reflector opposite to the first transparent plate.

[0014] Preferably, the second signal transfer unit further includes a second housing, a second transparent plate, and a second reflector. One side of the second housing is an opening, and the second transparent plate is disposed at the opening. The second reflector is disposed inside the second housing. The infrared transmitter is disposed between the second transparent plate and the second reflector. The second transparent plate is used to fix the infrared receiver of the remotely controlled device.

[0015] Preferably, the second reflector has the same structure as the first reflector.

[0016] Preferably, both the first signal switching unit and the second signal switching unit have independent power supply systems.

[0017] Compared with the prior art, the infrared remote control range extension device provided by this utility model has the following advantages:

[0018] This invention effectively expands the application range of the remote control by setting a first signal transfer unit on the remote control end and a second signal transfer unit on the remote-controlled device end, without changing the original remote control device's hardware and software. It extends the infrared remote control to a long-distance, all-angle, and obstructible remote control device, solving the problem of the limited application range of infrared remote controls. This frees traditional home appliances from the constraint of having to point the remote control directly at the appliance, allowing for better use of the remote control function. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the first signal transfer unit of this utility model.

[0020] Figure 2 This is a circuit block diagram of the first signal switching unit of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the second signal transfer unit of this utility model.

[0022] Figure 4 This is a circuit block diagram of the second signal transfer unit of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Infrared receiver, 2. First transparent plate, 3. First reflector, 4. First circuit board, 5. Infrared transmitter, 6. Second transparent plate, 7. Second reflector, 8. Second circuit board. Detailed Implementation

[0025] It should be noted that in the description of this utility model, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] It should also be noted that all connections involved in this utility model can be achieved using conventional connection methods and do not involve any innovation.

[0028] This utility model relates to a device for extending the application range of an infrared remote control. Infrared remote controls are characterized by ease of use, low price, and mature technology, and are widely used in fields such as home appliance control. The transmitting circuit of the infrared remote control uses an infrared light-emitting diode to emit modulated infrared light waves. When a command key is pressed, the command encoding circuit generates the required command encoding signal. This signal modulates the carrier wave, and after power amplification by the drive circuit, it is transmitted outward by the transmitting circuit. The receiving circuit receives the modulated coded command signal from the transmitter, amplifies it, and sends it to the demodulation circuit. The demodulation circuit demodulates the modulated command encoding signal, and finally, the drive circuit drives the execution circuit to realize the operation control of various commands.

[0029] Traditional home appliances are mostly controlled by infrared remote controls. However, due to the linear propagation characteristics of infrared light and its significant attenuation in the air, infrared remote controls have relatively low transmission power. As a result, they have problems such as short operating distance, inability to effectively send commands when obstructed by objects, and a small remote control angle range, which make them inconvenient to use.

[0030] Based on the above reasons, this utility model provides an infrared remote control range extension device to solve the aforementioned technical problems. The following describes the details... Figures 1 to 4 The present invention will be described in detail below.

[0031] Example 1

[0032] This embodiment provides an infrared remote control range extension device, including a first signal conversion unit and a second signal conversion unit. The first signal conversion unit is used to be fixed at the infrared transmitter port of the remote control. The first signal conversion unit includes an infrared receiver 1, a first signal conversion module and a first Bluetooth module. The infrared receiver 1 is electrically connected to the first signal conversion module, and the first signal conversion module is electrically connected to the first Bluetooth module. The infrared receiver 1 is used to receive the infrared signal emitted by the remote control. The first signal conversion module converts the infrared signal into an electrical signal, and the first Bluetooth module re-encodes the electrical signal and then transmits it.

[0033] The second signal conversion unit is fixed at the infrared receiver port of the remotely controlled device. The second signal conversion unit includes a second Bluetooth module, a second signal conversion module, and an infrared transmitter 5. The second Bluetooth module is wirelessly connected to the first Bluetooth module, and the second Bluetooth module is electrically connected to the second signal conversion module. The second signal conversion module is electrically connected to the infrared transmitter 5. The second Bluetooth module receives the electrical signal emitted by the first Bluetooth module, the second signal conversion module converts the electrical signal into an infrared signal, and the infrared transmitter 5 is used to emit an infrared signal to the remotely controlled device.

[0034] The first signal conversion module and the first Bluetooth module are integrated in the first circuit board 4, and the second signal conversion module and the second Bluetooth module are integrated in the second circuit board 8.

[0035] like Figure 1 As shown, the first signal transfer unit also includes a first housing, a first transparent plate 2, and a first reflector 3. One side of the first housing is an opening, and the first transparent plate 2 is set at the opening. The first transparent plate 2 can be made of plexiglass. The first reflector 3 is set inside the first housing. The infrared receiver 1 is set between the first transparent plate 2 and the first reflector 3. The first transparent plate 2 is used to fix the infrared transmitter port of the remote control.

[0036] To improve signal reception, the first reflector 3 is configured as a square pyramid, the infrared receiver 1 is positioned at the common vertex of the pyramid, and the first transparent plate 2 is positioned at the base of the pyramid. In this embodiment, the angle between the two surfaces of the first reflector 3 is 90°-120°.

[0037] Furthermore, the first signal conversion module and the first Bluetooth module are integrated into the first circuit board 4, which is located inside the first housing and on the side of the first reflector 3 opposite to the first transparent plate 2.

[0038] In order to ensure that the infrared transmission is not affected during installation, a transparent adhesive is provided on the side of the first transparent plate 2 away from the first reflector 3. The transparent adhesive is used to attach to the remote control, and the transparent adhesive is made of transparent adhesive.

[0039] In actual use, the infrared signal emitted by the remote control is transmitted to the infrared receiver through the plexiglass and the first reflector 3. The internal circuitry of the remote control device is as follows: Figure 2 As shown, after receiving the incoming infrared signal, the infrared receiver converts it into an electrical signal. This signal passes through the AGC control circuit and is then transmitted to the signal input terminal of the first Bluetooth module. The first Bluetooth module encodes the signal and transmits it outwards via its antenna. The infrared receiver 1, the AGC control circuit, and the first Bluetooth module are powered by a power supply unit.

[0040] Example 2

[0041] In this embodiment, the second signal transfer unit further includes a second housing, a second transparent plate 6, and a second reflector 7. One side of the second housing is an opening, and the second transparent plate 6 is disposed at the opening. The second transparent plate 6 can be made of plexiglass. The second reflector 7 is disposed inside the second housing. The infrared transmitter 5 is disposed between the second transparent plate 6 and the second reflector 7. The second transparent plate 6 is used to fix the infrared receiver port of the remotely controlled device.

[0042] In this embodiment, the second reflector 7 has the same structure as the first reflector 3. Specifically, the second reflector 7 is also configured as a square pyramid, with the second reflector 7 positioned at the common vertex of the square pyramid, and the second transparent plate 6 positioned at the base of the square pyramid. In this embodiment, the angle between the two surfaces of the second reflector 7 is 90°-120°.

[0043] In this embodiment, the first signal conversion module includes an AGC control circuit, and the AGC control circuit, infrared receiver 1, and first Bluetooth module are electrically connected in the first signal transfer unit.

[0044] The second signal conversion module includes an AGC control circuit, and the AGC control circuit, infrared transmitter 5, and second Bluetooth module are electrically connected in the second signal transfer unit.

[0045] In practical use, the infrared transmitter 5 is fixed to the infrared receiver end of the remotely controlled device using transparent adhesive. The internal circuitry of the receiver is as follows: Figure 4 As shown, after receiving the Bluetooth signal from the first Bluetooth module, the second Bluetooth module decodes the signal and sends the decoded electrical signal to the AGC control circuit. The AGC control circuit controls the signal power within the input power range of the infrared transmitter 5 and transmits it to the signal input terminal of the infrared transmitter 5. The infrared transmitter 5 converts the electrical signal back into an infrared signal, which is then transmitted through the plexiglass to the infrared receiver of the remotely controlled device, completing the signal transmission. The infrared transmitter 5, the AGC control circuit, and the second Bluetooth module are powered by the power supply section.

[0046] This invention provides an infrared remote control range extension device. Without altering the original remote control device's hardware or software, it effectively expands the remote control's range, extending it to a long-range, all-angle, and obstruction-resistant device, thus solving the problem of limited range for infrared remote controls. This frees traditional home appliances from the constraint of having to point the remote control directly at the appliance, allowing for better use of remote control functions.

[0047] The above-disclosed embodiments are merely preferred embodiments of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An infrared remote control range extension device, characterized in that, include: A first signal conversion unit is used to be fixed at the infrared transmitter port of the remote control. The first signal conversion unit includes an infrared receiver (1), a first signal conversion module and a first Bluetooth module. The infrared receiver (1) is electrically connected to the first signal conversion module, and the first signal conversion module is electrically connected to the first Bluetooth module. The infrared receiver (1) is used to receive the infrared signal emitted by the remote control. The first signal conversion module converts the infrared signal into an electrical signal, and the first Bluetooth module emits the electrical signal. The second signal conversion unit is used to fix the infrared receiver port of the remotely controlled device. The second signal conversion unit includes a second Bluetooth module, a second signal conversion module and an infrared transmitter (5). The second Bluetooth module is wirelessly connected to the first Bluetooth module. The second Bluetooth module is electrically connected to the second signal conversion module. The second signal conversion module is electrically connected to the infrared transmitter (5). The second Bluetooth module receives the electrical signal emitted by the first Bluetooth module. The second signal conversion module converts the electrical signal into an infrared signal. The infrared transmitter (5) is used to emit the infrared signal to the remotely controlled device.

2. The infrared remote control range extension device according to claim 1, characterized in that, The first signal transfer unit also includes a first housing, a first transparent plate (2), and a first reflector (3). One side of the first housing is an opening, and the first transparent plate (2) is disposed at the opening. The first reflector (3) is disposed inside the first housing. The infrared receiver (1) is disposed between the first transparent plate (2) and the first reflector (3). The first transparent plate (2) is used to fix the infrared transmitter port of the remote control.

3. The infrared remote control range extension device according to claim 2, characterized in that, The first reflector (3) is configured as a square pyramid, the infrared receiver (1) is disposed at the small end of the first reflector (3), and the first transparent plate (2) is disposed at the large end of the first reflector (3).

4. The infrared remote control range extension device according to claim 3, characterized in that, The angle between the two surfaces of the first reflector (3) is 90°-120°.

5. The infrared remote control range extension device according to claim 2, characterized in that, A transparent adhesive is provided on the side of the first transparent plate (2) away from the first reflector (3), and the transparent adhesive is used to bond with the remote control.

6. The infrared remote control range extension device according to claim 2, characterized in that, The first signal conversion module and the first Bluetooth module are both located inside the first box, and the first signal conversion module and the first Bluetooth module are located on the side of the first reflector (3) away from the first transparent plate (2).

7. The infrared remote control range extension device according to claim 2, characterized in that, The second signal transfer unit also includes a second housing, a second transparent plate (6), and a second reflector (7). One side of the second housing is an opening, and the second transparent plate (6) is disposed at the opening. The second reflector (7) is disposed inside the second housing. The infrared transmitter (5) is disposed between the second transparent plate (6) and the second reflector (7). The second transparent plate (6) is used to fix the infrared receiver of the remotely controlled device.

8. The infrared remote control range extension device according to claim 7, characterized in that, The second reflector (7) has the same structure as the first reflector (3).

9. The infrared remote control range extension device according to claim 1, characterized in that, Both the first signal switching unit and the second signal switching unit have independent power supply systems.

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