CN210667137U - Anti-loss alarm circuit - Google Patents
Anti-loss alarm circuit Download PDFInfo
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- CN210667137U CN210667137U CN201921825596.3U CN201921825596U CN210667137U CN 210667137 U CN210667137 U CN 210667137U CN 201921825596 U CN201921825596 U CN 201921825596U CN 210667137 U CN210667137 U CN 210667137U
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Abstract
The utility model discloses a prevent losing warning circuit, including signal transmission circuit, signal receiving circuit, filter circuit, signal amplification circuit, warning circuit, first switch, second switch, first power and second power, signal transmission circuit with the first switch reaches first power electricity is connected for to signal receiving circuit transmission electromagnetic wave; the first switch is electrically connected with the first power supply and the signal transmitting circuit and is used for controlling the first power supply to supply power to the signal transmitting circuit. The utility model has the advantages of simple structure, low cost and better prevention of the loss of the wireless mouse.
Description
Technical Field
The utility model relates to a computer technology field, in particular to use prevent losing warning circuit on wireless mouse of computer.
Background
The wireless mouse is one of the commonly used computer peripherals, has the advantages of convenient use, no wiring, long-distance computer control and the like, but is easy to lose after use because the wireless mouse is not connected with the computer through a connecting wire. Therefore, how to prevent the loss of the wireless mouse has become a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be, provide a simple structure and with low costs prevent losing alarm circuit.
The utility model provides a prevent losing warning circuit, including signal transmission circuit, signal reception circuit, filter circuit, signal amplification circuit, warning circuit, first switch, second switch, first power and second power, signal transmission circuit with first switch and first power electricity is connected for to signal reception circuit transmission electromagnetic wave; the first switch is electrically connected with the first power supply and the signal transmitting circuit and is used for controlling the first power supply to supply power to the signal transmitting circuit;
the signal receiving circuit is electrically connected with the filter circuit, the signal amplifying circuit and the alarm circuit and is used for outputting a control signal to the signal amplifying circuit according to the electromagnetic wave signal transmitted by the signal transmitting circuit; the signal amplification circuit is electrically connected with the alarm circuit and used for driving the alarm circuit according to the control signal; the second switch is electrically connected with the second power supply, the signal receiving circuit and the alarm circuit and is used for controlling the second power supply to supply power to the signal receiving circuit and the alarm circuit.
Preferably, the signal transmitting circuit comprises a transmitting chip, a first end of the transmitting chip is electrically connected with the first switch, and a second end of the transmitting chip is electrically connected with the power supply.
Preferably, the signal receiving circuit comprises a receiving chip, a first end of the receiving chip is electrically connected with the second switch, and a second end of the receiving chip is electrically connected with the second power supply.
Preferably, the filter circuit includes a first capacitor, a first end of the first capacitor is electrically connected to the third pin of the receiving chip, and a second end of the first capacitor is electrically connected to the second power supply.
Preferably, the signal amplification circuit includes a first triode, a base of the first triode is electrically connected to the fourth pin of the receiving chip, a collector of the first triode is electrically connected to the alarm circuit, and an emitter of the first triode is electrically connected to the second power supply.
Preferably, the alarm circuit comprises an alarm, a first end of the alarm is electrically connected with the second switch, and a second end of the alarm is electrically connected with a collector electrode of the first triode.
Preferably, the signal transmitting circuit further comprises a second capacitor, and the second capacitor is connected in parallel with the transmitting chip.
The utility model discloses following beneficial effect has: the utility model discloses a cooperation between signal transmission circuit, signal reception circuit, filter circuit, signal amplification circuit, alarm circuit, first switch, second switch, first power and the second power, during the use signal transmission circuit, first switch and first power setting are on notebook computer's mainboard, signal reception circuit, filter circuit, signal amplification circuit, alarm circuit, second switch and second power setting are on wireless mouse. Therefore, when the comparison computer is taken away and a user forgets to take the mouse, the signal receiving circuit cannot receive the signal transmitted by the signal transmitting circuit, so that the alarm circuit is controlled to send an alarm signal, a user can be prompted, the problem that the wireless mouse is easy to lose is solved, and the wireless mouse has the advantages of simple circuit structure, low cost and convenience in popularization and application.
Drawings
Fig. 1 is a circuit diagram of the anti-loss alarm circuit of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. It should be noted that, if there is no conflict, the embodiments and various features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention.
Referring to fig. 1, the present invention provides a loss prevention alarm circuit, which includes a signal transmitting circuit 1, a signal receiving circuit 2, a filter circuit 3, a signal amplifying circuit 4, an alarm circuit 5, a first switch K1, a second switch K2, a first power Vcc1 and a second power Vcc2, wherein the signal transmitting circuit 1 is electrically connected to the first switch K16 and the first power Vcc1, and is configured to transmit electromagnetic waves to the signal receiving circuit 2. The first switch K16 is electrically connected to the first power source Vcc1 and the signal transmitting circuit 1, and is used for controlling the first power source Vcc1 to supply power to the signal transmitting circuit 1.
The signal receiving circuit 2 is electrically connected with the filter circuit 3, the signal amplifying circuit 4 and the alarm circuit 5, and is used for outputting a control signal to the signal amplifying circuit 4 according to the electromagnetic wave signal transmitted by the signal transmitting circuit 1. The signal amplifying circuit 4 is electrically connected with the alarm circuit 5 and is used for driving the alarm circuit 5 according to the control signal. The second switch K2 is electrically connected to the second power supply Vcc2, the signal receiving circuit 2 and the alarm circuit 5, and is used for controlling the second power supply Vcc2 to supply power to the signal receiving circuit 2 and the alarm circuit 5.
The signal transmitting circuit 1 comprises a transmitting chip U1, wherein a first end of the transmitting chip U1 is electrically connected with a first switch K16, and a second end of the transmitting chip U1 is electrically connected with a power supply. In the present embodiment, the transmitting chip U1 is configured to transmit an ultrashort electromagnetic wave signal to the signal receiving circuit 2, where the ultrashort electromagnetic wave signal contains information for the signal receiving circuit 2 to identify, so that the signal receiving circuit 2 can identify the signal transmitted by the transmitting chip U1.
The signal receiving circuit 2 includes a receiving chip U2, a first terminal of the receiving chip U2 is electrically connected to the second switch K2, and a second terminal of the receiving chip U2 is electrically connected to the second power source Vcc 2. The filter circuit 3 comprises a first capacitor C1, a first terminal of the first capacitor C1 is electrically connected to the third pin of the receiving chip U2, and a second terminal of the first capacitor C1 is electrically connected to the second power Vcc 2. The filtering is performed by the first capacitor C1, so that the signal transmission is more stable and reliable. In this embodiment, the transmitting chip U1 is RCM-1A developed and produced by the institute for science and technology, and the receiving chip U2 is RCM-1B developed and produced by the institute for science and technology.
The signal amplifying circuit 4 comprises a first triode Q, the base of the first triode Q is electrically connected with the fourth pin of the receiving chip U2, the collector of the first triode Q is electrically connected with the alarm circuit 5, and the emitter of the first triode Q is electrically connected with the second power supply Vcc 2.
To sum up, the utility model discloses a cooperation between signal transmission circuit 1, signal reception circuit 2, filter circuit 3, signal amplification circuit 4, alarm circuit 5, first switch K16, second switch K2, first power Vcc1 and the second power Vcc2, during the use signal transmission circuit 1, first switch K16 and first power Vcc1 set up on notebook computer's mainboard, signal reception circuit 2, filter circuit 3, signal amplification circuit 4, alarm circuit 5, second switch K2 and second power Vcc2 set up on wireless mouse. Therefore, when the comparison computer is taken away and a mouse is forgotten to be taken, the signal receiving circuit 2 cannot receive the signal transmitted by the signal transmitting circuit 1, so that the alarm circuit 5 is controlled to send out an alarm signal, a user can be prompted, and the problem that the wireless mouse is easy to lose is solved.
The anti-loss alarm circuit provided by the utility model is introduced in detail, and a specific example is applied to explain the principle and the implementation mode of the utility model, and the description of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. To sum up, this description content only does the embodiment of the utility model, not therefore the restriction the patent scope of the utility model, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model, should not be understood as right the utility model discloses a restriction.
Claims (8)
1. A loss prevention alarm circuit is characterized by comprising a signal transmitting circuit, a signal receiving circuit, a filter circuit, a signal amplifying circuit, an alarm circuit, a first switch, a second switch, a first power supply and a second power supply, wherein the signal transmitting circuit is electrically connected with the first switch and the first power supply and is used for transmitting electromagnetic waves to the signal receiving circuit; the first switch is electrically connected with the first power supply and the signal transmitting circuit and is used for controlling the first power supply to supply power to the signal transmitting circuit; the signal receiving circuit is electrically connected with the filter circuit, the signal amplifying circuit and the alarm circuit and is used for outputting a control signal to the signal amplifying circuit according to the electromagnetic wave signal transmitted by the signal transmitting circuit; the signal amplification circuit is electrically connected with the alarm circuit and used for driving the alarm circuit according to the control signal; the second switch is electrically connected with the second power supply, the signal receiving circuit and the alarm circuit and is used for controlling the second power supply to supply power to the signal receiving circuit and the alarm circuit.
2. The loss prevention alarm circuit of claim 1, wherein the signal transmitting circuit comprises a transmitting chip, a first end of the transmitting chip is electrically connected to the first switch, and a second end of the transmitting chip is electrically connected to the power supply.
3. The loss prevention alarm circuit of claim 2, wherein the signal receiving circuit comprises a receiving chip, a first end of the receiving chip is electrically connected to the second switch, and a second end of the receiving chip is electrically connected to the second power supply.
4. The loss prevention alarm circuit of claim 3, wherein the filter circuit comprises a first capacitor, a first terminal of the first capacitor is electrically connected to the third pin of the receiving chip, and a second terminal of the first capacitor is electrically connected to the second power supply.
5. The loss prevention alarm circuit as claimed in claim 4, wherein the signal amplification circuit comprises a first transistor, a base of the first transistor is electrically connected to the fourth pin of the receiving chip, a collector of the first transistor is electrically connected to the alarm circuit, and an emitter of the first transistor is electrically connected to the second power supply.
6. A loss prevention alarm circuit as claimed in claim 5, wherein the alarm circuit comprises an alarm, a first terminal of the alarm being electrically connected to the second switch and a second terminal of the alarm being electrically connected to the collector of the first transistor.
7. The loss prevention alarm circuit of claim 2, wherein the signal transmitting circuit further comprises a second capacitor connected in parallel with the transmitting chip.
8. The loss prevention alarm circuit of claim 7, wherein the second capacitor is an electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825596.3U CN210667137U (en) | 2019-10-28 | 2019-10-28 | Anti-loss alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825596.3U CN210667137U (en) | 2019-10-28 | 2019-10-28 | Anti-loss alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210667137U true CN210667137U (en) | 2020-06-02 |
Family
ID=70812937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921825596.3U Active CN210667137U (en) | 2019-10-28 | 2019-10-28 | Anti-loss alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210667137U (en) |
-
2019
- 2019-10-28 CN CN201921825596.3U patent/CN210667137U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Futian District Che Kung Temple Tairan nine road Haisong building B-1303 Patentee after: Shenzhen smart Micro Intelligent Technology Co., Ltd Address before: 518000 Guangdong city of Shenzhen province Futian District Che Kung Temple Tairan nine road Haisong building B-1303 Patentee before: JWIPC TECHNOLOGY DEVELOPMENT Ltd. |
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| CP01 | Change in the name or title of a patent holder |