CN113570835A - Mobile equipment loss alarm method and device - Google Patents
Mobile equipment loss alarm method and device Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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Abstract
The embodiment of the invention relates to the technical field of electronics, in particular to a mobile equipment loss alarm method and a mobile equipment loss alarm device, which are used for effectively reminding a user when a mobile target approaches to mobile equipment after the mobile equipment is lost. The method comprises the steps that after an alarm function is started, the mobile equipment transmits a first signal; the mobile equipment receives a second signal, wherein the second signal is formed after the first signal is reflected by the target object; if the mobile device generates a phase difference signal according to the first signal and the second signal, the phase difference signal is processed through the operational amplifier circuit to obtain a level signal, if a voltage value corresponding to the level signal is larger than or equal to a first voltage threshold value, the mobile device sends alarm information to the remote device, a user target object can be reminded to be a mobile target through the alarm information, and the distance between the user target object and the mobile device is smaller than a distance threshold value, so that the effect of effectively reminding a user when the mobile target is close to the mobile device after the mobile device is lost is achieved.
Description
Technical Field
The embodiment of the invention relates to the technical field of electronics, in particular to a mobile equipment loss alarm method and a mobile equipment loss alarm device.
Background
In actual life, the mobile device brings great convenience to people, but people often have the situation that the mobile device is lost in public places, and the lost mobile device is easy to pick up by other people, so that the difficulty is increased for the owner to find the lost mobile device, and therefore the mobile device loss alarm method is urgently needed to remind the owner when people approach the lost mobile device.
Disclosure of Invention
The embodiment of the invention provides a mobile equipment alarm method and a mobile equipment alarm device, which are used for effectively reminding a user when a mobile target approaches to mobile equipment after the mobile equipment is lost.
In a first aspect, an embodiment of the present invention provides a method for alarming loss of a mobile device, where the method includes: the method comprises the steps that after an alarm function is started, the mobile equipment transmits a first signal; the mobile equipment receives a second signal, wherein the second signal is formed after the first signal is reflected by a target object; if the mobile equipment generates a phase difference signal according to the first signal and the second signal, the phase difference signal is processed through an operational amplifier circuit to obtain a level signal, and if a voltage value corresponding to the level signal is larger than or equal to a first voltage threshold value, the mobile equipment sends alarm information to remote equipment, wherein the alarm information is used for reminding a user that the target object is a moving target and the distance between the target object and the mobile equipment is smaller than a distance threshold value.
In the technical scheme, after the alarm function is started, the mobile device transmits a first signal and receives a second signal formed by the first signal after the first signal is reflected by a target object, if the mobile device generates a phase difference signal according to the first signal and the second signal, and the target object is a moving target, the mobile device amplifies the phase difference signal through an operational amplifier circuit to obtain a level signal, and if a voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, the mobile device sends alarm information to a remote device.
In one possible implementation, the mobile device generating a phase difference signal from the first signal and the second signal includes: and the mobile equipment mixes the first signal and the second signal through a triode to generate the phase difference signal.
In a possible embodiment, the alert information further comprises location information of the mobile device. Therefore, the owner of the lost can know the position of the mobile equipment through the alarm information obtained by the far-end equipment, and the lost owner can find the mobile equipment conveniently.
In one possible embodiment, the method further comprises: and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, activating a telephone dialing function of the mobile equipment.
In a possible embodiment, the first voltage threshold value is a default value or set according to a user instruction.
In a possible implementation manner, the first voltage threshold value is set according to a user instruction; the method further comprises the following steps: the mobile device receiving a user instruction from a remote device, the user instruction indicating the first voltage threshold value; the mobile equipment determines a target amplification factor according to a corresponding relation between a preset first voltage threshold value and a preset amplification factor and the first voltage threshold value indicated by the user instruction; and the mobile equipment adjusts the resistance value of a divider resistor included in the operational amplifier circuit so as to adjust the amplification factor of the operational amplifier circuit to the target amplification factor. Therefore, the voltage threshold value can be set through a user instruction, the amplification factor of the operational amplifier circuit is adjusted, and the induction distance of the mobile device can be adjusted.
In one possible embodiment, the first signal is a radiation signal with a frequency of 5.8G, which is obtained by cross-modulating an electric signal by an oscillation circuit. In this way, by emitting the 5.8G radiation signal to detect the surrounding target object, the interference of other signals to the radiation signal can be reduced, and the interference of the radiation signal to other signals can also be reduced.
In one possible embodiment, the method further comprises: if the voltage value corresponding to the level signal is greater than or equal to a second voltage threshold value, the mobile device reduces the transmission power of the mobile device, and the second voltage threshold value is greater than or equal to the first voltage threshold value.
In another possible embodiment, the method further comprises: if the mobile device does not generate a phase difference signal according to the first signal and the second signal, that is, there is no phase difference between the first signal and the second signal, the mobile device determines that the target object is in a stationary state, and the mobile device does not send alarm information to a remote device.
In a second aspect, an embodiment of the present invention provides a mobile device loss alarm apparatus, including:
the transmitting module is used for transmitting a first signal after the mobile equipment starts an alarm system;
the receiving module is used for receiving a second signal, wherein the second signal is formed by reflecting the first signal by a target object;
the processing module is used for generating a phase difference signal according to the first signal and the second signal if a phase difference exists between the first signal and the second signal, and amplifying the phase difference signal through an operational amplifier circuit to obtain a level signal; and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, sending alarm information to remote equipment, wherein the alarm information is used for reminding a user that the target object is close to the mobile equipment.
In a third aspect, an embodiment of the present invention provides a mobile device, including:
a memory for storing program instructions;
and the processor is used for calling the program instructions stored in the memory and executing the method according to any one of the embodiments of the first aspect and the first aspect according to the obtained program.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to cause a computer to perform the method described in any one of the foregoing first aspect and the first aspect.
It should be understood that the beneficial effects of the third aspect to the fourth aspect may refer to the beneficial effects of the method described in any one of the embodiments of the first aspect and the first aspect, and are not described herein again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a diagram illustrating a system architecture suitable for use with an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for alarming loss of a mobile device according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a signal mixing transmitting and receiving part according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for alarming loss of a mobile device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a mobile device loss alarm apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another mobile device loss alarm apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the application can be applied to the scene that the mobile equipment of the user is lost or forgotten.
Fig. 1 illustrates a schematic diagram of a system architecture suitable for use in the embodiment of the present invention, and as shown in fig. 1, the system architecture includes a mobile device 110 and a remote device 120. Wherein the mobile device 110 and the remote device 120 may be connected via a wireless connection or other means.
The mobile device 110 may communicate with the remote device 120, and the mobile device 110 may turn on an alarm function in the mobile device 110 after being lost or forgotten somewhere, and then send an alarm message to the remote device 120 when it is determined that a moving object is close to the mobile device 110, so as to notify the user when someone is close to the mobile device 110.
The user may set the related information of the remote device 120 on the mobile device 110 in advance, and the remote device 120 may be a device of the user or a device of an emergency contact set by the user.
In an embodiment of the present invention, the Mobile device 110 may include a handheld device, a vehicle-mounted device, a wearable device, a computing device, a Virtual Reality (VR) head-mounted display device (also referred to as VR head display) or other display devices with a wireless communication function, and various forms of User Equipment (User Equipment, UE for short), a Mobile station (MS for short), a Terminal (Terminal), a Terminal device (Terminal Equipment), and other display devices, for example, the Mobile device 110 is a Mobile phone, a notebook computer, a tablet computer, and the like. It should be noted that the mobile device 110 in fig. 1 is illustrated as a mobile phone, and the specific form of the mobile device is not limited.
The remote device 120 may be a server, or may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, a Virtual Reality (VR) head-mounted display device (also referred to as VR head display) or other display devices with a wireless communication function, and various forms of User Equipment (User Equipment, UE), a Mobile station (Mobile station, MS), a Terminal (Terminal), a Terminal device (Terminal Equipment), and other display devices, where the remote device 120 in fig. 1 is illustrated by taking a Mobile phone as an example, and the specific form of the Mobile device is not limited.
The following describes in detail how to implement the mobile device loss alarm method.
Based on the system architecture shown in fig. 1, fig. 2 exemplarily shows a flow chart of a mobile device loss alarm method provided by an embodiment of the present invention. As shown in fig. 2, an embodiment of the present invention provides a method for alarming loss of a mobile device, where the method includes the following steps:
step S201, after the mobile device starts the alarm function, it transmits a first signal.
In the embodiment of the application, the alarm function is started in various ways, a possible way is provided below, a user needs to log in a system account when using the mobile device, the user can log in the system account of the user in the remote device after the mobile device is lost or forgotten, then the anti-loss application is opened, the alarm function is started in the anti-loss application, the anti-loss application can be also named by other names, and the specific name of the application is not limited in the embodiment of the application.
The first signal may be a radiation signal obtained by cross-modulating an electric signal of 3.3V by an oscillation circuit, for example, the frequency range of the first signal may be 5-10G, so that interference of other signals to the first signal may be reduced, and interference of the first signal to other signals may also be reduced, and the embodiment of the present application does not limit the frequency of the first signal. In one example, the first signal may be a radiation signal of 5.8G, and by emitting the radiation signal of 5.8G to detect a surrounding target object, interference of other signals to the radiation signal may be reduced, and interference of the radiation signal to other signals may also be reduced.
Step S202, the mobile device receives a second signal, where the second signal is a signal formed by the first signal after being reflected by the target object.
In step S203, if the mobile device generates a phase difference signal according to the first signal and the second signal, the phase difference signal is processed by the operational amplifier circuit to obtain a level signal.
And step S204, if the voltage value corresponding to the level signal is greater than or equal to the first voltage threshold value, the mobile device sends alarm information to the remote device, wherein the alarm information is used for reminding a user that the target object is a mobile target and the distance between the target object and the mobile device is less than a distance threshold value. The first voltage threshold may be set according to actual requirements, and is not specifically limited herein.
In the embodiment of the invention, after the alarm function is started, the mobile device transmits a first signal and receives a second signal formed by the first signal after being reflected by a target object, if the mobile device generates a phase difference signal according to the first signal and the second signal, the target object is a mobile target, the mobile device amplifies the phase difference signal through an operational amplifier circuit to obtain a level signal, and if a voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, the mobile device sends alarm information to a remote device.
Based on the above embodiment, in step S203, there are various ways for the mobile device to generate the phase difference signal according to the first signal and the second signal, and an embodiment of the present invention provides an implementation manner that: and the mobile equipment mixes the first signal and the second signal through a triode to generate the phase difference signal.
Fig. 3 is a schematic circuit diagram illustrating a signal mixing transmitting and receiving part according to an embodiment of the present invention.
Taking the frequency of the first signal as 5.8G and the first voltage threshold as 1V as an example, as shown in fig. 3, the capacitor C4024, the resistor R4022 and the resistor R4023 constitute an oscillation circuit, fig. 3 further includes an antenna of a top layer mode (top layer mode) and an antenna of a bottom layer mode (bottom layer mode), and a triode, where the antenna of the top layer mode includes pins 1, 2, pins 3 and 4, the pins 1 are respectively connected to bases (bases) of the oscillation circuit and the triode, the pins 2 are connected to emitters (emitter) of the triode, the pins 3 are respectively connected to collectors (collectors) of the oscillation circuit and the triode, the pins 4 are grounded, the antenna of the bottom layer mode includes pins 5 and 5, where the pins 3 are used for transmitting signals, the pins 1 and the pins 2 are used for receiving signals, and the pins 4 and 5 are used for adjusting a signal receiving range.
The 1 Antenna of the bottom pattern (bottom pattern) is in a mirror image layer with the 4 antennas of the top pattern (top pattern), and the antennas are generally loop antennas (loop) plus Inverted-F antennas (IFA) according to the frequency change to be transmitted by using modulation, it should be understood that the antennas of the top pattern in fig. 3 may include more or less antennas, and the embodiments of the present application are not limited thereto.
In the embodiment of the invention, a 3.3V electric signal is cross-modulated by an oscillation circuit to form a first signal with a frequency of 5.8G, and then is transmitted by a pin3, a second signal is received by a pin1 and a pin2, the second signal is a signal obtained by the first signal after being reflected by a target, then the first signal and the second signal are mixed by a triode with a characteristic Frequency (FT) greater than 8G to form a phase difference signal of 10Hz, and then the phase difference signal of 10Hz is amplified by a 4-stage operational amplifier circuit to obtain a level signal. And then, judging whether the level signal is greater than or equal to 1V, if so, starting a positioning and alarming function if a moving target exists in 2m, and if not, starting no moving target exists in2 m.
In one possible embodiment, the method further comprises: and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, activating a telephone dialing function of the mobile equipment. In this manner, the remote device may receive a telephone alert from the mobile device.
In a possible implementation manner, the first voltage threshold may be a default value, where the default value may be factory set for the mobile device, or may be set according to a user instruction.
In a possible implementation manner, the first voltage threshold value is set according to a user instruction, and the method further includes: the mobile device receiving a user instruction from a remote device, the user instruction indicating the first voltage threshold value; the mobile device determines a target amplification factor corresponding to a first voltage threshold value indicated by a user instruction according to a corresponding relation between a preset first voltage threshold value and a preset amplification factor and the first voltage threshold value indicated by the user instruction, and then adjusts a resistance value of a divider resistor included in the operational amplifier circuit so as to adjust the amplification factor of the operational amplifier circuit to the target amplification factor. Therefore, the voltage threshold value can be set through a user instruction, the amplification factor of the operational amplifier circuit is adjusted, and the induction distance of the mobile device can be adjusted.
For example, in this embodiment, a user may operate on the remote device, and the user may set a specific value of the first voltage threshold value in the loss prevention application on the remote device, and then click a button to trigger sending of a user instruction to the sent device.
In another example, if someone picks up a mobile device that is lost by a user and restores the factory settings, the first voltage threshold value on the mobile device is restored to the default value, and the mobile device loss alarm scheme in the embodiment of the present application may still be used.
In a possible embodiment, the alert information further comprises location information of the mobile device. Therefore, the owner of the lost can know the position of the mobile equipment through the alarm information obtained by the far-end equipment, and the lost owner can find the mobile equipment conveniently.
In one possible embodiment, the method further comprises: if the voltage value corresponding to the level signal is greater than or equal to a second voltage threshold value, the mobile device reduces the transmission power of the mobile device, and the second voltage threshold value is greater than or equal to the first voltage threshold value. The second voltage threshold is generally a default value, and a specific value thereof may be set according to an actual requirement before leaving a factory, which is not specifically limited herein.
Taking the second voltage threshold value as 1.8V and the transmission power of the mobile device as P0 as an example, when the target object moves within a range of 20cm from the mobile device, the voltage value corresponding to the level signal is greater than or equal to the second voltage threshold value, the mobile device reduces the transmission power of the mobile device, and when the target object is far away from the mobile device to outside the range of 20cm, the voltage value corresponding to the level signal is less than the second voltage threshold value, the mobile device recovers the original transmission power.
Based on the above embodiment, after step S202, if the mobile device does not generate a phase difference signal according to the first signal and the second signal, that is, there is no phase difference between the first signal and the second signal, the signal obtained by mixing the first signal and the second signal through the triode is 0, and the mobile device determines that the target object is in a stationary state.
In order to more clearly describe the above method flow, the following examples are provided in the embodiments of the present invention.
Fig. 4 is a flowchart illustrating another method for warning loss of a mobile device according to an embodiment of the present invention, where as shown in fig. 4, the method includes the following steps:
step S401, after the mobile device starts the alarm function, a first signal with the frequency of 5.8G is obtained through cross modulation of an oscillating circuit.
In step S402, the mobile device transmits a first signal.
In step S403, the mobile device receives a second signal, where the second signal is a signal formed by the first signal after being reflected by the target object.
Step S404, the mobile device mixes the first signal and the second signal through the triode to determine whether a phase difference signal is generated, if yes, step S405 is executed; if not, go to step S410.
Step S405, the operational amplifier circuit processes the phase difference signal to obtain a level signal.
Step S406, the mobile device determines whether the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, if so, then step S407 is executed; if not, go to step S410.
Step S407, the mobile device sends alarm information to the remote device, and the alarm information is used for reminding the user that the target object is a mobile target and the distance between the target object and the mobile device is smaller than a distance threshold.
Step S408, the mobile device determines whether the voltage value corresponding to the level signal is greater than or equal to the second voltage threshold value, if so, then step S409 is executed; if not, step S411 is executed.
Step S409, the mobile device reduces the transmission power.
Step S410, the mobile device determines that the target object is in a static state, and the mobile device does not send alarm information to the remote device.
Step S411, the initial transmission power is maintained.
From the above, it can be seen that: after the alarm function is started, the mobile device transmits a first signal and receives a second signal formed by the first signal after the first signal is reflected by a target object, if the mobile device generates a phase difference signal according to the first signal and the second signal, the target object is a moving target, the mobile device amplifies the phase difference signal through an operational amplifier circuit to obtain a level signal, and if a voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, the mobile device sends alarm information to a remote device. Further, if the voltage value corresponding to the level signal is greater than or equal to the second voltage threshold value, the mobile device reduces the transmission power, so that the transmission power can be reduced to pass the SAR authentication, and a user can use the mobile device conveniently.
Based on the same concept, the mobile device loss alarm apparatus provided in the embodiment of the present invention is configured to execute the above method flow, and fig. 5 schematically illustrates a structural diagram of the mobile device loss alarm apparatus provided in the embodiment of the present invention.
As shown in fig. 5, the mobile device loss alarm 500 includes a transmitting module 501, a receiving module 502, and a processing module 503. Wherein:
a transmitting module 501, configured to transmit a first signal after the mobile device turns on an alarm system;
a receiving module 502, configured to receive a second signal, where the second signal is a signal formed after the first signal is reflected by a target object;
a processing module 503, configured to generate a phase difference signal according to the first signal and the second signal if a phase difference exists between the first signal and the second signal, and amplify the phase difference signal through an operational amplifier circuit to obtain a level signal; and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, sending alarm information to remote equipment, wherein the alarm information is used for reminding a user that the target object is close to the mobile equipment.
Further, the processing module 503 is specifically configured to mix the first signal and the second signal through a triode to generate the phase difference signal.
Further, the alarm information further includes location information of the mobile device. Therefore, the owner of the lost can know the position of the mobile equipment through the alarm information obtained by the far-end equipment, and the lost owner can find the mobile equipment conveniently.
Further, the processing module 503 is further configured to: and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, activating a telephone dialing function of the mobile equipment.
Further, the first voltage threshold value is a default value or set according to a user instruction.
Further, the first voltage threshold value is set according to a user instruction. A receiving module 502, further configured to receive a user instruction from a remote device, where the user instruction is used to indicate the first voltage threshold value; the processing module 503 is further configured to: determining a target amplification factor according to a corresponding relation between a preset first voltage threshold value and a preset amplification factor and the first voltage threshold value indicated by the user instruction; and adjusting the resistance value of a divider resistor included in the operational amplifier circuit so as to adjust the amplification factor of the operational amplifier circuit to the target amplification factor. Therefore, the voltage threshold value can be set through a user instruction, the amplification factor of the operational amplifier circuit is adjusted, and the induction distance of the mobile device can be adjusted.
Further, the first signal is a radiation signal with a frequency of 5.8G, which is obtained by cross-modulating the electric signal by an oscillating circuit. In this way, by emitting the 5.8G radiation signal to detect the surrounding target object, the interference of other signals to the radiation signal can be reduced, and the interference of the radiation signal to other signals can also be reduced.
Further, the processing module 503 is further configured to: and if the voltage value corresponding to the level signal is greater than or equal to a second voltage threshold value, reducing the transmission power of the mobile equipment, wherein the second voltage threshold value is greater than or equal to the first voltage threshold value.
Further, the processing module 503 is further configured to: if the mobile device does not generate a phase difference signal according to the first signal and the second signal, that is, there is no phase difference between the first signal and the second signal, it is determined that the target object is in a stationary state, and no alarm information is sent to a remote device.
From the above, it can be seen that: after the alarm function is started, the mobile device transmits a first signal and receives a second signal formed by the first signal after the first signal is reflected by a target object, if the mobile device generates a phase difference signal according to the first signal and the second signal, the target object is a mobile target, the mobile device amplifies the phase difference signal through an operational amplifier circuit to obtain a level signal, and if a voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, the mobile device sends alarm information to a remote device.
Based on the same concept, another mobile device loss alarm apparatus provided in the embodiment of the present invention is configured to execute the above method flow, and fig. 6 exemplarily shows a schematic structural diagram of another mobile device provided in the embodiment of the present invention.
As shown in fig. 6, the mobile device loss alarm apparatus 600 includes a transceiver 601, a processor 602, and optionally a memory 603 for storing data. Wherein: the transceiver 601 may be configured to perform the functions of the transmitting module 501 and the receiving module 502 in fig. 5, and the processor 602 may be configured to perform the functions of the processing module 503 in fig. 5.
Based on the same concept, embodiments of the present invention also provide a computer-readable storage medium storing program code, which, when executed on a computer, causes the computer to perform the method of any one of the embodiments shown in fig. 2 or fig. 4.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A mobile device loss alert method, the method comprising:
the method comprises the steps that after an alarm function is started, the mobile equipment transmits a first signal;
the mobile equipment receives a second signal, wherein the second signal is formed after the first signal is reflected by a target object;
if the mobile equipment generates a phase difference signal according to the first signal and the second signal, processing the phase difference signal through an operational amplifier circuit to obtain a level signal;
and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, the mobile device sends alarm information to remote equipment, wherein the alarm information is used for reminding a user that the target object is a mobile target and the distance between the target object and the mobile device is less than a distance threshold value.
2. The method of claim 1, wherein the mobile device generates a phase difference signal from the first signal and the second signal, comprising:
and the mobile equipment mixes the first signal and the second signal through a triode to generate the phase difference signal.
3. The method of claim 1, wherein the alert information further includes location information of the mobile device.
4. The method of claim 1, wherein the first voltage threshold value is a default value or set according to a user instruction.
5. The method of claim 1, wherein the first voltage threshold value is set according to a user instruction; the method further comprises the following steps:
the mobile device receiving a user instruction from a remote device, the user instruction indicating the first voltage threshold value;
the mobile equipment determines a target amplification factor according to a corresponding relation between a preset first voltage threshold value and a preset amplification factor and the first voltage threshold value indicated by the user instruction;
and the mobile equipment adjusts the resistance value of a divider resistor included in the operational amplifier circuit so as to adjust the amplification factor of the operational amplifier circuit to the target amplification factor.
6. The method according to claim 1, wherein the first signal is a radiation signal having a frequency of 5.8G obtained by cross-modulating an electric signal by an oscillation circuit.
7. The method of any one of claims 1-6, further comprising:
if the voltage value corresponding to the level signal is greater than or equal to a second voltage threshold value, the mobile device reduces the transmission power of the mobile device, and the second voltage threshold value is greater than or equal to the first voltage threshold value.
8. A mobile device loss alarm apparatus, comprising:
the transmitting module is used for transmitting a first signal after the mobile equipment starts an alarm system;
the receiving module is used for receiving a second signal, wherein the second signal is formed by reflecting the first signal by a target object;
the processing module is used for generating a phase difference signal according to the first signal and the second signal if a phase difference exists between the first signal and the second signal, and amplifying the phase difference signal through an operational amplifier circuit to obtain a level signal; and if the voltage value corresponding to the level signal is greater than or equal to a first voltage threshold value, sending alarm information to remote equipment, wherein the alarm information is used for reminding a user that the target object is a moving target and the distance between the target object and the moving equipment is less than a distance threshold value.
9. A mobile device, comprising:
a memory for storing program instructions;
a processor for calling program instructions stored in said memory to execute the method of any one of claims 1 to 7 in accordance with the obtained program.
10. A computer-readable storage medium having computer-executable instructions stored thereon for causing a computer to perform the method of any one of claims 1-7.
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| CN202110741060.9A CN113570835A (en) | 2021-07-01 | 2021-07-01 | Mobile equipment loss alarm method and device |
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| CN202110741060.9A CN113570835A (en) | 2021-07-01 | 2021-07-01 | Mobile equipment loss alarm method and device |
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Application publication date: 20211029 |