CN111812631A - Distance reminding method, device, equipment and storage medium - Google Patents
Distance reminding method, device, equipment and storage medium Download PDFInfo
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
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- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
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Abstract
The application discloses a distance reminding method, a distance reminding device, distance reminding equipment and a storage medium, and relates to but is not limited to the technical field of wireless communication. The embodiment of the application comprises the following steps: transmitting a first carrier signal during a first period; receiving a second carrier signal in a second period; and sending a distance reminding signal according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal. By transmitting and receiving wireless carrier signals, the method and the device can detect targets in all directions within a certain distance range, and avoid detection blind areas; by periodically transmitting and receiving the carrier signals, the transmission and the reception of the carrier signals are in different periods, the problem of signal crosstalk caused by synchronously transmitting and receiving the carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
Description
Technical Field
The embodiments of the present application relate to, but not limited to, the field of wireless communication technologies, and in particular, to a distance reminding method, apparatus, device, and storage medium.
Background
The distance reminding device is mainly applied to distance reminding between people, between people and objects and between objects. At present, a distance reminding device measures a distance between a target and the device through a sensor, and when the distance between the target and the device reaches a preset threshold value, the device sends a distance reminding signal. The distance reminding equipment can only detect the target in a fixed direction and has a detection blind area.
Disclosure of Invention
The embodiment of the application provides a distance reminding method, a distance reminding device, distance reminding equipment and a storage medium, and the method, the device and the storage medium can detect targets in all directions within a certain distance range by transmitting and receiving wireless carrier signals, so that detection blind areas are avoided.
In a first aspect, an embodiment of the present application provides a distance reminding method, including:
transmitting a first carrier signal during a first period;
receiving a second carrier signal in a second period;
and sending a distance reminding signal according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal.
The distance reminding method provided by the embodiment of the application at least has the following beneficial effects:
1. by transmitting and receiving wireless carrier signals, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided.
2. By periodically transmitting and receiving the carrier signals, the transmission and the reception of the carrier signals are in different periods, the problem of signal crosstalk caused by synchronously transmitting and receiving the carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
In a second aspect, an embodiment of the present application provides a distance reminding device, where the distance reminding device includes:
the carrier signal transmitting module is used for transmitting a first carrier signal in a first period;
a carrier signal receiving module, configured to receive a second carrier signal in a second period;
the main control module is respectively connected with the carrier signal transmitting module and the carrier signal receiving module and used for sending a distance reminding instruction according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal;
and the distance reminding module is connected with the main control module and used for sending a distance reminding signal according to the distance reminding instruction.
The distance reminding device of the embodiment of the application at least has the following beneficial effects:
1. through the interaction of the main control module, the carrier signal transmitting module, the carrier signal receiving module and the distance reminding module, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided.
2. Through the carrier signal transmitting module and the carrier signal receiving module, the transmitting and receiving of the carrier signals are in different periods, the problem of signal crosstalk caused by synchronous transmitting and receiving of the carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
In a third aspect, an embodiment of the present application provides a distance reminding device, where the distance reminding device includes:
the distance reminding device comprises a memory, a processor, a program stored on the memory and capable of running on the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the program is executed by the processor, the distance reminding method of some embodiments of the application is realized.
According to the distance reminding device, the distance reminding method is executed, on one hand, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided. On the other hand, the problem of signal crosstalk caused by synchronous transmission and reception of carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform a distance reminding method according to some embodiments of the present application.
The computer-readable storage medium of the embodiment of the application, by executing the distance reminding method, on one hand, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided. On the other hand, the problem of signal crosstalk caused by synchronous transmission and reception of carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating one embodiment of a distance alert method;
FIG. 2 is a schematic flow chart diagram illustrating another embodiment of a distance alert method;
FIG. 3 is a schematic flow chart diagram illustrating another embodiment of a distance alert method;
FIG. 4 is a schematic flow chart diagram illustrating another embodiment of a distance alert method;
FIG. 5 is a schematic flow chart diagram illustrating another embodiment of a distance alert method;
FIG. 6 is a schematic flow chart diagram illustrating another exemplary embodiment of a distance alert method;
FIG. 7 is a block diagram of an embodiment of a distance alert device;
FIG. 8 is a block diagram of a specific embodiment of a distance alert device.
Reference numerals:
a distance alert device 700; a carrier signal transmitting module 710; a carrier signal receiving module 720; a main control module 730; a distance alert module 740; a distance alert device 800; a memory 810; a processor 820.
Detailed Description
The conception and the resulting technical effects of the present application will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present application belong to the protection scope of the present application.
In the description of the present application, if an orientation description is referred to, for example, a positional relationship based on an orientation or a positional relationship shown in the drawings, it is only for convenience of description and simplification of description, and it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. If a feature is referred to as being "disposed" or "connected" to another feature, it can be directly disposed or connected to the other feature or be indirectly disposed or connected to the other feature.
In the description of the embodiments of the present application, if reference is made to "first" and "second", it should be understood as being used for distinguishing technical features, and not as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
The terminal of the embodiment of the application can be a mobile terminal or a non-mobile terminal. The mobile terminal can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, a super mobile personal computer, a netbook, a personal digital assistant, CPE, UFI (wireless hotspot device) and the like; the non-mobile terminal may be a personal computer, a television, a teller machine, a self-service machine, or the like. The first terminal is in communication connection with the second terminal, which may be direct communication connection, such as communication connection through WiFi or bluetooth; or through a third-party network communication connection, such as a mobile internet (2G/3G/4G/5G, etc.).
The distance reminding is to detect whether a target approaches in a certain distance range, and if the target is detected in the certain distance range, a reminding signal (such as a sound signal, a light signal, a vibration signal and the like) is sent out. The distance reminding device is mainly applied to distance reminding between people, between people and objects and between objects. For example, in an application scenario of infectious disease prevention and control, the distance reminding device reminds people to keep social distance, and the keeping of the social distance is a non-drug infection control measure for preventing infectious disease from spreading or reducing the spreading speed of the infectious disease, so that the spreading path of the infectious disease is blocked by reducing the contact between infected people and uninfected people, and the pathogenic rate of the infectious disease is reduced. For another example, in an application scenario of article storage, the distance reminding device reminds of illegal invasion, thereby providing a safe storage service of the articles. For another example, in an application scenario of traffic safety, the distance reminding device reminds that a safe distance is kept between vehicles.
At present, distance reminding equipment widely applied measures the distance between a target and the equipment through a sensor, and sends a distance reminding signal when the distance between the target and the equipment reaches a preset threshold value. The distance reminding equipment can only detect the target in a fixed direction and has a detection blind area.
Based on this, the embodiments of the present application provide a distance reminding method, apparatus, device, and storage medium, which can detect targets in all directions within a certain distance range by transmitting and receiving wireless carrier signals, thereby avoiding detection blind areas.
In a first aspect, an embodiment of the present application provides a distance reminding method, with reference to fig. 1, including the following specific steps:
s110, transmitting a first carrier signal in a first period;
s120, receiving a second carrier signal in a second period;
and S130, sending a distance reminding signal according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal.
Referring to fig. 2, step S130 includes the following specific steps:
s210, judging whether the characteristic parameters of the second carrier signals are the same as the characteristic parameters of the first carrier signals; if yes, go to step S220; if not, go to step S230;
s220, sending a distance reminding signal;
and S230, continuing to execute the step S110 and the step S120.
In some embodiments, the first period is a transmission period of the first carrier signal and the second period is a reception period of the second carrier signal, the first carrier signal and the second carrier signal being generated from different sources. For example, a first terminal transmits a first carrier signal during a first period and receives a second carrier signal transmitted by a second terminal during a second period, the first carrier signal being generated by the first terminal and the second carrier signal being generated by the second terminal. And if the characteristic parameters of the second carrier signals received by the first terminal are the same as the characteristic parameters of the first carrier signals generated by the first terminal, sending a distance reminding signal. The characteristic parameters of the second carrier signal are the same as the characteristic parameters of the first carrier signal, and the characteristic parameters include at least one of the following: characteristic period, characteristic frequency. The distance alert signal may include at least one of: sound signal, light signal, vibration signal.
In other embodiments, the first period is a transmission period of the first carrier signal and the second period is a reception period of the second carrier signal, and the first carrier signal and the second carrier signal are generated from the same source. For example, the first terminal transmits a first carrier signal during a first period and waits to receive a second carrier signal during a second period, the second carrier signal being a reflected signal of the first carrier signal. If the target exists in a certain distance range, the first carrier signal transmitted by the first terminal is reflected when meeting the target, and the first terminal receives the reflected second carrier signal and sends a distance reminding signal. Since the second carrier signal is a reflected signal of the first carrier signal, the characteristic parameters of the second carrier signal are the same as those of the first carrier signal, including envelope and phase. The first terminal can detect targets in all directions within a certain distance range by transmitting and receiving wireless carrier signals, and detection blind areas are avoided. The detection distance is affected by the signal transmission power of the first terminal, and the larger the signal transmission power of the first terminal is, the farther the detection distance is. By adjusting the signal transmission power, the detection range can be set. In addition, the first terminal periodically transmits and receives the carrier signals, and the transmission and the reception of the carrier signals are in different periods, so that the problem of signal crosstalk caused by synchronous transmission and reception of the carrier signals can be avoided, and the accuracy of distance reminding is improved.
In some embodiments, the first terminal determines whether the received second carrier signal has the same characteristic parameter as the transmitted first carrier signal. If the characteristic parameters of the two carrier signals are the same, a distance reminding signal is sent out; and if the characteristic parameters of the two carrier signals are different, the reminding signal is not triggered, the first carrier signal is continuously transmitted in the first period, and the second carrier signal is received in the second period. The characteristic parameters of the two carrier signals are different, and may be at least one of the following characteristic parameters of the two carrier signals: characteristic period, characteristic frequency. The distance reminding is triggered by judging whether the characteristic parameters of the second carrier signals are the same as the characteristic parameters of the first carrier signals, the judgment condition is simple, the response time delay of the distance reminding can be reduced, and the response efficiency of the distance reminding is improved.
In some embodiments, the first period and the second period may be continuous or discontinuous. If the first period and the second period are consecutive, the first terminal transmits the first carrier signal within the first period, the first period ends, the second period immediately starts, the first terminal receives the second carrier signal within the second period, the second period ends, and the first period immediately starts again. If the first period and the second period are discontinuous, the first terminal transmits the first carrier signal in the first period, the first period ends, a certain interval time exists, then the second period starts, the first terminal receives the second carrier signal in the second period, the second period ends, a certain interval time passes, and then the first period starts again. The interval time can be set according to actual requirements, and the first period and the second period can also be set according to actual application scenarios.
In some embodiments, a randomly generated third period is utilized to adjust at least one of: a first cycle and a second cycle. For example, the first period and the second period are adjusted using a randomly generated third period, the third period being generated by a random function. The initial value of the first period is 100ms, the initial value of the second period is 50ms, and the randomly generated third period is 20 ms. The period adjustment may be by adding or subtracting the third period to the initial value of the period. If the first period and the second period are adjusted by adding the third period, the adjusted first period is 120ms, and the adjusted second period is 70 ms. If the first period and the second period are adjusted by subtracting the third period, the adjusted first period is 80ms, and the adjusted second period is 30 ms. If the first period and the second period are adjusted for the second time, the third period randomly generated at the time of adjustment for the second time is not necessarily the same as the third period at the time of adjustment for the first time because the third period at each adjustment is randomly generated. If the adjusted period is an illegal value (such as a negative number), the third period is regenerated or the previous legal adjustment result is returned. The first period and/or the second period are/is adjusted through the randomly generated third period, the adjusted first period and/or second period have randomness, and the condition that the signal transmitting periods and/or the signal receiving periods of the first terminal and other terminals are/is overlapped with each other can be reduced in the process of transmitting and receiving carrier signals, so that the crosstalk between the carrier signals is reduced, and the accuracy of distance reminding is improved.
In other embodiments, if the characteristic parameter of the second carrier signal received by the first terminal is the same as the characteristic parameter of the first carrier signal transmitted by the first terminal, the distance alert signal is sent out, and the second period is reduced by a third period. By reducing the second period, the period of receiving the second carrier by the first terminal is shortened, so that the first terminal can be switched to the first period in a short time to retransmit the first carrier signal, and the response efficiency of distance reminding can be improved.
In some embodiments, the first carrier signal includes a first characteristic period, and the second carrier signal includes a second characteristic period, and referring to fig. 3, the distance reminding method includes the following specific steps:
s310, transmitting a first carrier signal in a first period, wherein the first carrier signal comprises a first characteristic period;
s320, receiving a second carrier signal in a second period, wherein the second carrier signal comprises a second characteristic period;
s330, sending a distance reminding signal according to the second characteristic period and the first characteristic period.
Referring to fig. 4, step S330 includes the following specific steps:
s410, judging whether the second characteristic period is the same as the first characteristic period; if yes, go to step S420; if not, go to step S430;
s420, sending a distance reminding signal;
and S430, continuing to execute the step S310 and the step S320.
In some embodiments, it is determined whether the first characteristic period of the first carrier signal and the second characteristic period of the second carrier signal are the same. The characteristic period is an inherent characteristic of the periodic carrier signal, and by adding the characteristic period to the carrier signal, interference of other carrier signals in the surrounding environment can be avoided. The characteristic period can be modulated according to the actual application environment. If the characteristic periods of the two carrier signals are the same, a distance reminding signal is sent out; and if the characteristic periods of the two carrier signals are different, the reminding is not triggered, the first carrier signal is continuously transmitted in the first period, and the carrier signal is received in the second period. The distance reminding signal is triggered by judging whether the second characteristic period of the second carrier signal is the same as the first characteristic period of the first carrier signal, the judgment condition is simple, the response time delay of the distance reminding can be reduced, and the response efficiency of the distance reminding is improved.
In some embodiments, the first carrier signal includes a first characteristic frequency, and the second carrier signal includes a second characteristic frequency, and referring to fig. 5, the distance reminding method includes the following specific steps:
s510, transmitting a first carrier signal in a first period, wherein the first carrier signal comprises a first characteristic frequency;
s520, receiving a second carrier signal in a second period, wherein the second carrier signal comprises a second characteristic frequency;
s530, sending a distance reminding signal according to the second characteristic frequency and the first characteristic frequency.
Referring to fig. 6, step S530 includes the following specific steps:
s610, judging whether the second characteristic frequency is the same as the first characteristic frequency; if yes, go to step S620; if not, go to step S630;
s620, sending a distance reminding signal;
and S630, continuing to execute the step S510 and the step S520.
In some embodiments, it is determined whether the first characteristic frequency of the first carrier signal and the second characteristic frequency of the second carrier signal are the same. The characteristic frequency is an inherent characteristic of the carrier signal, and by adding the characteristic frequency to the carrier signal, interference of other carrier signals in the surrounding environment can be avoided. The characteristic frequency can be modulated according to the actual application environment. If the characteristic frequencies of the two carrier signals are the same, a distance reminding signal is sent out; and if the characteristic frequencies of the two carrier signals are different, the reminding signal is not triggered, the first carrier signal is continuously transmitted in the first frequency, and the carrier signal is received in the second frequency. The distance reminding signal is triggered by judging whether the second characteristic frequency of the second carrier signal is the same as the first characteristic frequency of the first carrier signal, the judgment condition is simple, the response time delay of the distance reminding can be reduced, and the response efficiency of the distance reminding is improved.
In a second aspect, an embodiment of the present application provides a distance reminding device, and referring to fig. 7, the distance reminding device 700 includes:
a carrier signal transmitting module 710 for transmitting a first carrier signal in a first period;
a carrier signal receiving module 720, configured to receive a second carrier signal in a second period;
the main control module 730 is respectively connected to the carrier signal transmitting module 710 and the carrier signal receiving module 720, and is configured to send a distance reminding instruction according to the characteristic parameter of the second carrier signal and the characteristic parameter of the first carrier signal;
and the distance reminding module 740 is connected with the main control module 730 and is used for sending a distance reminding signal according to the distance reminding instruction.
The main control module is respectively connected with the carrier signal transmitting module, the carrier signal receiving module and the distance reminding module, receives a first carrier signal transmitted by the carrier signal transmitting module and a second carrier signal transmitted by the carrier signal receiving module, generates a distance reminding instruction by judging whether the characteristic parameter of the first carrier signal is the same as the characteristic parameter of the second carrier signal, generates the distance reminding instruction if the characteristic parameter of the first carrier signal is the same as the characteristic parameter of the second carrier signal, transmits the distance reminding instruction to the distance reminding module, receives the distance reminding instruction by the distance reminding module, responds to the distance reminding instruction, and triggers distance reminding. If the characteristic parameters of the first carrier signal are different from the characteristic parameters of the second carrier signal, the main control module does not generate a distance reminding instruction. The characteristic parameters include at least one of: characteristic period, characteristic frequency. Through the interaction of the main control module, the carrier signal transmitting module, the carrier signal receiving module and the distance reminding module, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided. Through the carrier signal transmitting module and the carrier signal receiving module, the transmitting and receiving of the carrier signals are in different periods, the problem of signal crosstalk caused by synchronous transmitting and receiving of the carrier signals can be avoided, and therefore the accuracy of distance reminding is improved. The main control module is a neural center and a command center of the distance reminding device and can be a programmable logic control device or a processor. The main control module can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution. The distance reminding module can adopt at least one of the following reminding modes: sound reminding, light-emitting reminding and vibration reminding. The distance reminding module can use an LED lamp, a display screen, a buzzer, a vibration motor and the like. The carrier signal transmitting module comprises a signal transmitting circuit and generates a first carrier signal. The carrier signal receiving module comprises a signal receiving circuit for receiving a second carrier signal.
In some embodiments, the carrier signal transmitting module includes a first carrier signal modulating unit for adding a first characteristic period or a first characteristic frequency to the first carrier signal; the carrier signal receiving module comprises a second carrier signal demodulating unit, and the second carrier signal demodulating unit is used for extracting a second characteristic cycle or a second characteristic frequency from a second carrier signal. The characteristic period is the inherent characteristic of the periodic carrier signal, the characteristic frequency is the inherent characteristic of the carrier signal, and the interference of other carrier signals in the surrounding environment can be avoided by adding the characteristic period or the characteristic frequency to the carrier signal. The characteristic period or the characteristic frequency can be modulated according to the actual application environment. If the characteristic periods or the characteristic frequencies of the two carrier signals are the same, a distance reminding signal is sent out; and if the characteristic periods or the characteristic frequencies of the two carrier signals are different, the reminding is not triggered, the first carrier signal is continuously transmitted in the first period, and the carrier signal is received in the second period. The distance reminding is triggered by judging whether the second characteristic period of the second carrier signal is the same as the first characteristic period of the first carrier signal or not, or the distance reminding is triggered by judging whether the second characteristic frequency of the second carrier signal is the same as the first characteristic frequency of the first carrier signal or not, so that the judgment condition is simple, the response time delay of the distance reminding can be reduced, and the response efficiency of the distance reminding is improved.
In some embodiments, the distance alert device further comprises a period modulation module, the period modulation module is configured to randomly generate a third period, and the third period is configured to adjust at least one of: a first cycle and a second cycle. For example, the first period or the second period is adjusted by a third period randomly generated by the period modulation module. The initial value of the first or second period is 60ms and the randomly generated third period is 10 ms. The period adjustment may be by adding or subtracting the third period to the initial value of the period. If the first period or the second period is adjusted by adding the third period, the adjusted first period or second period is 70 ms. If the first period or the second period is adjusted by subtracting the third period, the adjusted first period or second period is 50 ms. If the first period or the second period is adjusted for the second time, the third period randomly generated at the time of the second adjustment is not necessarily the same as the third period at the time of the first adjustment because the third period at each adjustment is randomly generated. If the adjusted period is an illegal value (such as a negative number), the third period is regenerated or the previous legal adjustment result is returned. The first period and/or the second period are/is adjusted through the third period randomly generated by the period modulation module, the adjusted first period and/or second period have randomness, and the condition that the first period and/or second period of the first terminal and the first period and/or second period of other terminals are/is overlapped with each other can be reduced in the process of transmitting and receiving carrier signals, so that crosstalk between the carrier signals is reduced.
In some embodiments, the distance reminding device further includes an instruction input module, connected to the main control module, for inputting a control instruction, where the control instruction is used to trigger the main control module to send the distance reminding instruction to the distance reminding module. The instruction input module is connected with the main control module and sends a control instruction to the main control module, the control instruction can trigger the main control module to generate a distance reminding instruction, and the main control module sends the distance reminding instruction to the distance reminding module so as to trigger the distance reminding module to send a distance reminding signal. The instruction input module can be a common input device such as a touch screen, a mouse and a keyboard, and can also be an intelligent input device such as a visual sensor and a sound sensor. Correspondingly, the corresponding user operation instruction can be obtained by analyzing the operation of the user on the input devices such as a touch screen, a mouse, a keyboard and the like; or analyzing the information such as images and sounds by using algorithms such as image recognition and voice recognition to obtain corresponding user operation instructions. The user operation can be touch and click operation of a display interface trigger inlet of the distance reminding device.
In some embodiments, the distance reminding device further comprises a power module, and the power module can be arranged in the distance reminding device or can be arranged outside the distance reminding device. The power module supplies power for each module of the distance reminding device, and can adopt button batteries, dry batteries, rechargeable lithium batteries, power adapters and the like.
In a third aspect, an embodiment of the present application provides a distance reminding device, and referring to fig. 8, the distance reminding device 800 includes: a memory 810, a processor 820, a program stored on the memory 810 and executable on the processor 820, and a data bus for enabling connection communication between the processor 820 and the memory 810, the program, when executed by the processor 820, implementing the distance alerting method of some embodiments of the present application.
According to the distance reminding device, the distance reminding method is executed, on one hand, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided. On the other hand, the problem of signal crosstalk caused by synchronous transmission and reception of carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
In the distance reminding device of the embodiment of the Application, the processor may be a Central Processing Unit (CPU), or may be other general-purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field-Programmable Gate arrays (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being a control center for the operable device of a distance alert method, the various interfaces and lines connecting the various parts of the operable device of the overall distance alert method.
The memory may be used to store computer programs and/or modules, and the processor may be used to implement the various functions of the executable apparatus of a distance alert method by executing or executing the computer programs and/or modules stored in the memory, as well as invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a flash memory Card (FlashCard), at least one magnetic disk storage device, a flash memory device, or other volatile solid state storage device.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform a distance reminding method according to some embodiments of the present application.
The computer-readable storage medium of the embodiment of the application, by executing the distance reminding method, on one hand, targets in all directions within a certain distance range can be detected, and detection blind areas are avoided. On the other hand, the problem of signal crosstalk caused by synchronous transmission and reception of carrier signals can be avoided, and therefore the accuracy of distance reminding is improved.
The computer-readable storage medium of an embodiment of the present application includes: a U disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
In the embodiments of the present application, it should be understood that the disclosed technical content can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a module may be divided into one logic function and another logic function, and for example, a plurality of units or modules may be combined or integrated into another apparatus or system, or some features may be omitted or not executed. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. The distance reminding method is characterized by comprising the following steps:
transmitting a first carrier signal during a first period;
receiving a second carrier signal in a second period;
and sending a distance reminding signal according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal.
2. The distance reminding method according to claim 1, wherein the characteristic parameters include at least one of: characteristic period, characteristic frequency.
3. The distance reminding method according to claim 2, wherein the first carrier signal includes a first characteristic period, the second carrier signal includes a second characteristic period, and the sending the distance reminding signal according to the characteristic parameter of the second carrier signal and the characteristic parameter of the first carrier signal comprises:
judging whether the second characteristic period is the same as the first characteristic period or not;
and if the second characteristic period is the same as the first characteristic period, sending a distance reminding signal.
4. The distance reminding method according to claim 2, wherein the first carrier signal includes a first characteristic frequency, the second carrier signal includes a second characteristic frequency, and the sending the distance reminding signal according to the characteristic parameters of the second carrier signal and the characteristic parameters of the first carrier signal comprises:
judging whether the second characteristic frequency is the same as the first characteristic frequency;
and if the second characteristic frequency is the same as the first characteristic frequency, sending a distance reminding signal.
5. The distance reminding method according to any of claims 1 to 4, characterized in that a third period generated randomly is used to adjust at least one of the following: the first period, the second period.
6. Distance reminding device, its characterized in that, distance reminding device includes:
the carrier signal transmitting module is used for transmitting a first carrier signal in a first period;
a carrier signal receiving module, configured to receive a second carrier signal in a second period;
the main control module is respectively connected with the carrier signal transmitting module and the carrier signal receiving module and is used for sending a distance reminding instruction according to the characteristic parameters of the second carrier signal and the first carrier signal;
and the distance reminding module is connected with the main control module and used for sending a distance reminding signal according to the distance reminding instruction.
7. The distance reminding device according to claim 6,
the carrier signal transmitting module comprises a first carrier signal modulating unit, and the first carrier signal modulating unit is used for adding a first characteristic period or a first characteristic frequency to the first carrier signal;
the carrier signal receiving module includes a second carrier signal demodulating unit, and the second carrier signal demodulating unit is configured to extract a second eigenperiod or a second eigenfrequency from the second carrier signal.
8. The distance reminder device according to claim 6 or 7, characterized in that the distance reminder device further comprises:
a period modulation module to randomly generate a third period to adjust at least one of: the first period, the second period.
9. Distance reminder device, characterized in that the distance reminder device comprises a memory, a processor, a program stored on the memory and executable on the processor, and a data bus for enabling a connection communication between the processor and the memory, which program, when executed by the processor, implements the distance reminder method of any of claims 1 to 5.
10. Computer-readable storage media, characterized in that the computer-readable storage media stores computer-executable instructions for causing a computer to execute the distance alert method according to any one of claims 1 to 5.
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| CN202010486234.7A CN111812631A (en) | 2020-06-01 | 2020-06-01 | Distance reminding method, device, equipment and storage medium |
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