Alarm and wireless external anti-loss alarm system
By designing an alarm that includes a main control module and a wireless module, and using multiple alarms to establish a communication network in different frequency bands, the problem of easy loss of wireless peripherals is solved, and effective anti-loss alarm management is achieved.
Patent Information
- Application Number
- CN202422772131.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-13
AI Technical Summary
In computer usage scenarios, especially in environments with large crowds and inadequate supervision such as Internet cafes, wireless peripherals are easily lost and there is a lack of an effective anti-loss management system.
An alarm is designed, which includes a main control module, a wireless module and an alarm output module. It obtains the alarm information of the wireless peripheral device and outputs the alarm signal through wireless communication connection. Multiple alarms are used to establish a communication network in different frequency bands for anti-loss management.
When the wireless peripheral leaves the PC and approaches the alarm, the alarm will sound, effectively preventing the loss of the wireless peripheral. Modules in different frequency bands do not interfere with each other, providing sensitivity and long-distance communication capabilities.
Smart Images
Figure CN223413765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of computers, in particular to an alarm device and a wireless peripheral device anti-loss alarm system. Background Art
[0002] Nowadays, computers are used in a variety of peripheral devices. Thanks to the maturity of wireless communication technology, wireless peripherals, such as wireless mice and wireless headphones, are also common. However, in scenarios like internet cafes, where a large number of computers and multiple wireless peripherals are involved, wireless peripherals can be easily lost due to heavy traffic and inadequate supervision. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide an alarm device and a wireless peripheral anti-loss alarm system which can prevent the loss of wireless peripherals.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] The first aspect of the present invention provides an alarm, which includes a main control module, a wireless module and an alarm output module. When the wireless peripheral device approaches the alarm, the wireless module establishes a wireless communication connection with the wireless peripheral device to obtain the alarm information sent by the wireless peripheral device and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information.
[0006] Preferably, the alarm further includes a power module and a battery, and the power module is used to supply power to the main control module, the wireless module and the alarm output module.
[0007] Preferably, the alarm further includes a battery voltage detection module and a lighting module. The battery voltage detection module is used to detect the battery voltage and send the detection data to the main control module. When the battery voltage is within a preset range, the main control module controls the lighting module to provide a low battery indication.
[0008] A second aspect of the present invention provides a wireless peripheral device anti-loss alarm system, which includes multiple alarms installed in a target scene. The alarms are the alarms provided by the first aspect of the present invention.
[0009] The third aspect of the present invention provides an alarm, which includes a main control module, a first wireless module, a second wireless module, a switch module and an alarm output module, wherein the first wireless module and the second wireless module operate in different communication frequency bands, and the main control module switches the operating mode of the alarm according to different switch signals output by the switch module; when the alarm is in the first operating mode, the first wireless module establishes a wireless communication connection with the wireless peripheral when the wireless peripheral is close to the alarm, so as to obtain the alarm information sent by the wireless peripheral and transmit it to the main control module, the main control module controls the alarm output module to output an alarm signal according to the alarm information, and the second wireless module establishes a wireless communication connection with the alarm in the second operating mode, so as to send the alarm information to the corresponding alarm in the second operating mode; when the alarm is in the second operating mode, the second wireless module establishes a wireless communication connection with the alarm in the first operating mode, so as to obtain the alarm information sent by the corresponding alarm in the first operating mode and transmit it to the main control module, and the main control module controls the alarm output module to output an alarm signal according to the alarm information.
[0010] Preferably, the first wireless module operates in the 2.4 GHz frequency band, and the second wireless module operates in the 433 MHz frequency band.
[0011] Preferably, the alarm includes a sensitivity selection module, and the main control module adjusts the sensitivity of the first wireless module through the sensitivity selection module.
[0012] Preferably, the alarm includes a frequency band selection module, and the main control module adjusts the frequency channel of the second wireless module according to the selection signal output by the frequency band selection module.
[0013] Preferably, the switch module includes a Hall switch, and the Hall switch is communicatively connected to the main control module.
[0014] The fourth aspect of the present invention provides a wireless peripheral device anti-loss alarm system, which is characterized in that it includes multiple master device alarms and at least one slave device alarm installed in the target scene, the master device alarm adopts the alarm in the first working mode provided by the third aspect of the present invention, and the slave device alarm adopts the alarm in the second working mode provided by the third aspect of the present invention.
[0015] The beneficial technical effect of the present invention is that the alarm of the present invention includes a main control module, a wireless module and an alarm output module. The wireless module is used to establish a wireless communication connection with the wireless peripheral when the wireless peripheral approaches the alarm to obtain the alarm information sent by the wireless peripheral and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information, so that when the wireless peripheral leaves the PC end and approaches the alarm, the alarm will sound, thereby realizing anti-loss alarm management of the wireless peripheral. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural block diagram of an alarm in one embodiment of the present utility model;
[0017] Figure 2 for Figure 1 A circuit schematic diagram of the first wireless module, the first crystal oscillator module and the sensitivity selection module;
[0018] Figure 3 for Figure 1 The circuit schematic diagram of the power module in;
[0019] Figure 4 for Figure 1 The circuit schematic diagram of the battery voltage detection module in FIG;
[0020] Figure 5 for Figure 1 The circuit schematic diagram of the lighting module in;
[0021] Figure 6 for Figure 1 The circuit schematic diagram of the interface detection module in FIG;
[0022] Figure 7 for Figure 1 Circuit diagram of the alarm output module in;
[0023] Figure 8 for Figure 1 The circuit schematic diagram of the switch module in;
[0024] Figure 9 for Figure 1 A circuit schematic diagram of the second wireless module in FIG.
[0025] Figure 10 for Figure 1 The circuit schematic diagram of the second crystal oscillator module in;
[0026] Figure 11 for Figure 1 The circuit schematic diagram of the frequency band selection module in;
[0027] Figure 12This is a structural block diagram of an alarm device in another embodiment of the present invention;
[0028] Figure 13 This is a data transmission flow chart of the wireless peripheral anti-lost alarm system composed of master / slave device alarms in the utility model;
[0029] Figure 14 This is a data transmission flow chart of the wireless peripheral anti-loss alarm system composed of multiple identical alarms in the utility model. DETAILED DESCRIPTION
[0030] In order to enable those skilled in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.
[0031] The utility model provides an alarm device and a wireless peripheral device loss prevention alarm system.
[0032] like Figure 1 As shown, in one embodiment of the present invention, the alarm includes a main control module 10, a first wireless module 11, a second wireless module 12, a switch module 21 and an alarm output module 13. The first wireless module 11 and the second wireless module 12 operate in different communication frequency bands. The main control module 10 switches the working mode of the alarm according to the different switch signals output by the switch module 21. When the alarm is in the first working mode, the first wireless module 11 establishes a wireless communication connection with the wireless peripheral when the wireless peripheral is close to the alarm to obtain the alarm information sent by the wireless peripheral and transmit it to the main control module 10. The main control module 10 Module 10 controls the alarm output module 13 to output an alarm signal according to the alarm information, and the second wireless module 12 establishes a wireless communication connection with the alarm in the second working mode to send the alarm information to the corresponding alarm in the second working mode; when the alarm is in the second working mode, the second wireless module 12 establishes a wireless communication connection with the alarm in the first working mode to obtain the alarm information sent by the corresponding alarm in the first working mode and transmit it to the main control module 10, and the main control module 10 controls the alarm output module 13 to output an alarm signal according to the alarm information.
[0033] In this embodiment, the first wireless module 11 operates in the 2.4 GHz frequency band, and the second wireless module 12 operates in the 433 MHz frequency band. Of course, in other embodiments, the first wireless module 11 and the second wireless module 12 may also operate in other frequency bands, as long as the first wireless module 11 and the second wireless module 12 operate in different communication frequency bands. In this embodiment, the first wireless module 11 is integrated into the main control module 10. Of course, in other embodiments, the first wireless module 11 and the main control module 10 may also be two independent components.
[0034] In this embodiment, the main control module 10 is connected to the second wireless module 12 through an SPI (Serial Peripheral Interface) bus; of course, in other embodiments, the main control module 10 can also be connected to the second wireless module 12 through a common I / O port.
[0035] like Figure 7 As shown, in this embodiment, the alarm output module 13 uses the buzzer U5 to output a sound signal to alarm. When a wireless peripheral (mouse, keyboard, headset, etc.) approaches the alarm, the buzzer U5 outputs a low level, causing the transistor Q4 to turn on, thereby the MOS tube Q3 is also turned on, and the buzzer works; of course, in other embodiments, an indicator light can also be used to mention the buzzer, and the indicator light outputs a light signal to alarm.
[0036] like Figure 8 As shown, in this embodiment, the switch module 21 includes a Hall switch Q14. When a magnet approaches the Hall switch Q14, the LEV_3.3V detection port outputs a low level, and the main control module 10 switches the alarm's operating mode to the first operating mode. When the magnet leaves, the LEV_3.3V detection port outputs a high level, and the main control module 10 switches the alarm's operating mode to the second operating mode. In this way, the alarm's operating mode is switched. Of course, in other embodiments, other types of switches, such as a DIP switch, can be used instead of the Hall switch Q14. By switching the switch between different states, the alarm's operating mode can be switched.
[0037] The alarm device further comprises a power supply module 14 and a battery 15. The power supply module 14 is used to supply power to the main control module 10, the first wireless module 11, the second wireless module 12, the switch module 21 and the alarm output module 13. Figure 3 As shown, the power supply module 14 uses the 5V DC power provided by the external power supply or battery 15 to power the alarm output module 13, and at the same time uses the low voltage difference linear regulator U3 to convert the 5V into 3.3V and then power the main control module 10, the first wireless module 11, the second wireless module 12, and the switch module 21.
[0038] The alarm also includes a charging module 16, a battery voltage detection module 17 and a light module 18. The charging module 16 is used to charge the battery. The battery voltage detection module 17 is used to detect the voltage of the battery 15 and send the detection data to the main control module 10. When the battery voltage is lower than the preset value, the main control module 10 controls the light module 18 to indicate low power. Figure 4 As shown, the battery voltage detection module 17 uses resistors R20 and R21 for voltage division detection. BAT is the voltage of the battery terminal (lithium battery) (3.2-4.2V). The detected battery voltage change (ADC_BAT) is sent to the main control module 10; Figure 5 As shown, the lighting module 18 is controlled by LEV-RED. When the main control module 10 recognizes that the battery voltage is between 3.2-3.4V through ADC_BAT, the control indicator D2 lights up and displays a red light to indicate low power, prompting the user to charge the battery.
[0039] The alarm further includes a wired interface 19 , through which the alarm can communicate with other devices. At the same time, other devices can also provide 5V DC power to the alarm through the wired interface 19 .
[0040] The alarm further includes an interface detection module 20 for identifying whether the wired interface 19 is connected to other devices. Figure 6 As shown, the interface detection module 20 uses resistors R18 and R19 for voltage division detection. When the wired interface 19 is connected to other devices, VBUS-C provides 5V, and USB_CHK detects a high level, which means that the wired interface 19 is recognized to be connected to other devices.
[0041] The alarm further includes a sensitivity selection module 25, and the main control module 10 adjusts the sensitivity of the first wireless module 11 through the sensitivity selection module 25. Figure 2 As shown, the main control chip U1 of the main control module 10 controls the switch SW2 through the I / O port (V1 / V2 / V3) to select the channel (RF1 / RF2 / RF3): when V1 outputs a high level, V2 outputs a low level, and V3 outputs a low level, the channel selects RF1; when V1 outputs a low level, V2 outputs a high level, and V3 outputs a low level, the channel selects RF2; when V1 outputs a low level, V2 outputs a low level, and V3 outputs a high level, the channel selects RF3. By selecting different channels, the sensitivity of the first wireless module 11 is adjusted.
[0042] The alarm includes a frequency band selection module 26, and the main control module 10 adjusts the channel of the second wireless module 12 according to the selection signal output by the frequency band selection module 26. Figure 2 、 9 As shown in Figure 11, the voltages of P3031-1, P3031-2, and P3031-3 are controlled by switch SW3. There are 7 combinations of the voltages of P3031-1, P3031-2, and P3031-3, corresponding to 7 groups of channels. When P3031-1 / P3031-2 / P3031-3 detect a low level in combination, the corresponding channel can be selected.
[0043] like Figure 1 、 2 As shown in Figures 9 and 10, the alarm further includes a debugging port 24, a first crystal oscillator module 22 and a second crystal oscillator module 23. The alarm can be debugged through the debugging port 24. The first crystal oscillator module 22 and the second crystal oscillator module 23 provide clock signals for the first wireless module 11 and the second wireless module 12 respectively to ensure normal data communication.
[0044] based on Figures 1 to 11 The alarm in the embodiment shown in the figure, the utility model provides a wireless peripheral anti-lost alarm system. The wireless peripheral anti-lost alarm system includes multiple master device alarms and at least one slave device alarm installed in the target scene. The master device alarm adopts Figures 1 to 11 In the embodiment shown, the alarm is in the first working mode, and the slave alarm adopts Figures 1 to 11 The alarm in the illustrated embodiment is in the second operating mode.
[0045] The data communication process of the wireless peripheral device anti-lost alarm system is as follows: Figure 13 As shown, the workflow is as follows:
[0046] A-1: When a wireless peripheral (mouse, keyboard, headset, etc.) leaves the PC and approaches the main device alarm, the MCU of the wireless peripheral (mouse, keyboard, headset, etc.) will actively send a digital signal alarm information. The digital signal is processed into an analog signal by the MCU of the wireless peripheral. The antenna of the wireless peripheral's 2.4GHz working frequency band / other frequency band will radiate the analog signal into space in the form of electromagnetic waves to report the alarm information.
[0047] A-2: The main device alarm uses the antenna of the first wireless module to receive the electromagnetic wave signal transmitted from the wireless peripheral device. The main control module of the main device alarm will modulate and demodulate the electromagnetic wave signal in the 2.4GHz working frequency band / other frequency band into an analog signal, and then convert the analog signal into a digital signal through calculation and processing. The main control module of the main device alarm processes the alarm information and controls the operation of the buzzer.
[0048] A-3: At the same time, the main control module of the main device alarm is controlled by the SPI bus composed of high-speed I\O ports, and the digital signal that has been calculated and processed is transmitted to the second wireless module. The transmitted data is converted into an analog signal through modulation and demodulation by the second wireless module, and then the analog signal is radiated into space in the form of electromagnetic waves through the antenna of the second wireless module.
[0049] A-4: The second wireless module on the slave device alarm receives the 433MHz frequency band / other frequency band electromagnetic wave signal sent by the master device alarm. The main control module of the slave device alarm modulates and demodulates the 433MHz frequency band / other frequency band electromagnetic wave signal into an analog signal, and then converts the analog signal into a digital signal through calculation and processing. The main control module of the slave device alarm processes the alarm information and controls the operation of the buzzer.
[0050] Through the above steps, when the wireless peripheral leaves the PC and approaches the master device alarm, the master device alarm and the slave device alarm will sound an alarm at the same time, thus realizing the anti-loss alarm management of the wireless peripheral.
[0051] The beneficial technical effects of this embodiment are:
[0052] (1) The wireless peripheral device anti-loss alarm system includes multiple master device alarms and at least one slave device alarm installed in a target scene. When the wireless peripheral device approaches the alarm, the first wireless module of the master device alarm establishes a wireless communication connection with the wireless peripheral device to obtain the alarm information sent by the wireless peripheral device and transmits it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information. At the same time, the second wireless module of the master device alarm establishes a wireless communication connection with the second wireless module of the slave device alarm, and sends the alarm information to the slave device alarm to control the alarm output module of the slave device alarm to output an alarm signal. When the wireless peripheral device leaves the PC end and approaches the alarm, the master device alarm and the slave device alarm sound an alarm at the same time, thereby realizing the anti-loss alarm management of the wireless peripheral device.
[0053] (2) The first wireless module and the second wireless module operate in different frequency bands, so that the communication between the invalid peripheral device and the alarm, and the communication between the alarms do not interfere with each other.
[0054] (3) The first wireless module 11 operates in the 2.4 GHz frequency band, and has a compact structure, low power consumption, and high integration; the second wireless module 12 operates in the 433 MHz frequency band, and has the characteristics of high anti-interference, high sensitivity, low power consumption, and ultra-long distance, and can establish a long-distance and interference-free management communication environment.
[0055] based on Figures 1 to 11The utility model also provides a wireless peripheral device anti-lost alarm system. The wireless peripheral device anti-lost alarm system includes multiple alarms installed in the target scene. Figures 1 to 11 The alarm in the illustrated embodiment is in a first operating mode.
[0056] The data communication process of the wireless peripheral device anti-lost alarm system is as follows: Figure 14 As shown, the workflow is as follows:
[0057] B-1: When a wireless peripheral (mouse, keyboard, headset, etc.) leaves the PC and approaches the alarm, the MCU of the wireless peripheral (mouse, keyboard, headset, etc.) will actively send an alarm message in the form of a digital signal. The digital signal is processed into an analog signal by the MCU of the wireless peripheral. The antenna of the wireless peripheral in the 2.4GHz working frequency band / other frequency band will radiate the analog signal into space in the form of electromagnetic waves to report the alarm information.
[0058] B-2: The alarm uses the antenna of the first wireless module to receive electromagnetic wave signals transmitted by the wireless peripheral. The alarm's main control module modulates and demodulates the electromagnetic wave signals (in the 2.4GHz operating frequency band or other frequency bands) into analog signals. This analog signal is then converted into a digital signal through calculation and processing. The main control module of the main device alarm processes the alarm information and controls the buzzer. Through these steps, when the wireless peripheral moves away from the PC and approaches the alarm, the alarm will sound, implementing anti-loss alarm management for the wireless peripheral.
[0059] The wireless peripheral anti-loss alarm system of this embodiment includes multiple alarms installed in the target scene. When the wireless peripheral approaches the alarm, the first wireless module establishes a wireless communication connection with the wireless peripheral to obtain the alarm information sent by the wireless peripheral and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information, so that when the wireless peripheral leaves the PC and approaches the alarm, the alarm will sound, thereby realizing the anti-loss alarm management of the wireless peripheral.
[0060] like Figure 12 As shown, another embodiment of the present invention provides an alarm device. The alarm device in this embodiment is Figures 1 to 11 The difference between the alarm device in the illustrated embodiment is that it only includes the first wireless module 11 , does not include the second wireless module 12 , and does not have a switch module, a frequency band selection module, or a second crystal oscillator module.
[0061] based on Figure 12 The utility model also provides a wireless peripheral device anti-lost alarm system. The wireless peripheral device anti-lost alarm system includes multiple alarms installed in the target scene. Figure 12 The alarm in the embodiment shown.
[0062] The data communication process of the wireless peripheral device anti-lost alarm system is as follows: Figure 14 As shown, the workflow is as follows:
[0063] C-1: When a wireless peripheral (mouse, keyboard, headset, etc.) leaves the PC and approaches the alarm, the MCU of the wireless peripheral (mouse, keyboard, headset, etc.) will actively send an alarm message in the form of a digital signal. The digital signal is processed into an analog signal by the MCU of the wireless peripheral. The antenna of the wireless peripheral in the 2.4GHz working frequency band / other frequency band will radiate the analog signal into space in the form of electromagnetic waves to report the alarm information.
[0064] C-2: The alarm uses the antenna of the first wireless module to receive electromagnetic wave signals transmitted by the wireless peripheral. The alarm's main control module modulates and demodulates the electromagnetic wave signals (in the 2.4GHz operating frequency band or other frequency bands) into analog signals. This analog signal is then converted into a digital signal through calculation and processing. The main control module of the main device alarm processes the alarm information and controls the buzzer. Through these steps, when the wireless peripheral moves away from the PC and approaches the alarm, the alarm will sound, implementing anti-loss alarm management for the wireless peripheral.
[0065] The wireless peripheral anti-loss alarm system of this embodiment includes multiple alarms installed in the target scene, and the alarms include a main control module, a wireless module and an alarm output module. The wireless module is used to establish a wireless communication connection with the wireless peripheral when the wireless peripheral approaches the alarm to obtain the alarm information sent by the wireless peripheral and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information, so that when the wireless peripheral leaves the PC end and approaches the alarm, the alarm will sound, thereby realizing the anti-loss alarm management of the wireless peripheral.
[0066] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Those skilled in the art may make various equivalent changes and improvements based on the above embodiment. Any equivalent changes or modifications made within the scope of the claims shall fall within the scope of protection of the present invention.
Claims
1. An alarm, characterized in that: It includes a main control module, a wireless module and an alarm output module. When the wireless peripheral device approaches the alarm, the wireless module establishes a wireless communication connection with the wireless peripheral device to obtain the alarm information sent by the wireless peripheral device and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information.
2. The alarm device according to claim 1, characterized in that: The alarm device further comprises a power supply module and a battery, wherein the power supply module is used to supply power to the main control module, the wireless module and the alarm output module.
3. The alarm device according to claim 2, characterized in that: The alarm also includes a battery voltage detection module and a light module. The battery voltage detection module is used to detect the battery voltage and send the detection data to the main control module. When the battery voltage is within a preset range, the main control module controls the light module to provide a low battery indication.
4. A wireless peripheral device anti-loss alarm system, characterized by: The invention comprises a plurality of alarms installed in a target scene, wherein the alarms are the alarms according to any one of claims 1 to 3.
5. An alarm, characterized in that: It includes a main control module, a first wireless module, a second wireless module, a switch module and an alarm output module. The first wireless module and the second wireless module operate in different communication frequency bands. The main control module switches the working mode of the alarm according to different switch signals output by the switch module. When the alarm is in the first working mode, the first wireless module establishes a wireless communication connection with the wireless peripheral when the wireless peripheral is close to the alarm, so as to obtain alarm information sent by the wireless peripheral and transmit it to the main control module, the main control module controls the alarm output module to output an alarm signal according to the alarm information, and the second wireless module establishes a wireless communication connection with the alarm in the second working mode, so as to send the alarm information to the corresponding alarm in the second working mode; When the alarm is in the second working mode, the second wireless module establishes a wireless communication connection with the alarm in the first working mode to obtain the alarm information sent by the corresponding alarm in the first working mode and transmit it to the main control module. The main control module controls the alarm output module to output an alarm signal according to the alarm information.
6. The alarm device according to claim 5, characterized in that: The first wireless module operates in the 2.4 GHz frequency band, and the second wireless module operates in the 433 MHz frequency band.
7. The alarm device according to claim 6, characterized in that: The alarm includes a sensitivity selection module, and the main control module adjusts the sensitivity of the first wireless module through the sensitivity selection module.
8. The alarm device according to claim 6, characterized in that: The alarm includes a frequency band selection module, and the main control module adjusts the channel of the second wireless module according to the selection signal output by the frequency band selection module.
9. The alarm device according to any one of claims 5 to 8, characterized in that: The switch module includes a Hall switch, and the Hall switch is communicatively connected with the main control module.
10. A wireless peripheral device anti-loss alarm system, characterized by: It includes multiple master device alarms and at least one slave device alarm installed in the target scene, the master device alarm adopts the alarm in the first working mode described in any one of claims 5 to 9, and the slave device alarm adopts the alarm in the second working mode described in any one of claims 5 to 9.