CN113162703B - Wireless transmitting and receiving power monitoring circuit and mobile terminal with wireless communication circuit - Google Patents
Wireless transmitting and receiving power monitoring circuit and mobile terminal with wireless communication circuit Download PDFInfo
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- CN113162703B CN113162703B CN202110463111.6A CN202110463111A CN113162703B CN 113162703 B CN113162703 B CN 113162703B CN 202110463111 A CN202110463111 A CN 202110463111A CN 113162703 B CN113162703 B CN 113162703B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
The invention discloses a wireless transmitting and receiving power monitoring circuit and a mobile terminal with a wireless communication circuit. The technical scheme of the invention comprises the following steps: a master control circuit; the detection end of the receiving and transmitting power detection circuit is connected with the receiving and transmitting end of the wireless communication circuit; the receiving and transmitting power detection circuit is used for detecting the power of the receiving and transmitting signals of the wireless communication circuit and outputting the receiving and transmitting power detection signals; the input end of the protection trigger circuit is connected with the output end of the receiving and transmitting power detection circuit, and the output end of the protection trigger circuit is connected with the power feedback end of the main control circuit; the protection trigger circuit is used for outputting a protection trigger signal when the power of the transceiving signal is determined to be greater than a first preset power threshold value according to the transceiving power detection signal output by the transceiving power detection circuit; the main control circuit is used for controlling the working state of the wireless communication circuit according to the protection trigger signal when receiving the protection trigger signal. The technical scheme of the invention can reduce the influence of the mobile terminal with overlarge transmitting and receiving power on the body health of the user.
Description
Technical Field
The present invention relates to the field of wireless power monitoring technologies, and in particular, to a wireless transmit/receive power monitoring circuit and a mobile terminal having a wireless communication circuit.
Background
At present, wireless functions are integrated in mobile phones, IPADs, learning machines and the like, and wireless communication functions are integrated in the mobile phones, the IPADs, the learning machines and the like. In daily use, a mobile terminal is often damaged, so that a wireless communication circuit in the mobile terminal is damaged, and although the damaged wireless communication circuit still can perform a wireless communication function, the transmitting and receiving power of the wireless communication circuit is increased. And the long-time use of the mobile terminal with increased transceiving power may affect the physical health of the user.
Disclosure of Invention
The invention mainly aims to provide a wireless transceiving power monitoring circuit and a mobile terminal with a wireless communication circuit, and aims to solve the problem that the mobile terminal with excessive transceiving power influences the body health of a user.
In order to achieve the above object, the present invention provides a wireless transmit-receive power monitoring circuit capable of being remotely controlled. The wireless transmitting and receiving power monitoring circuit comprises:
a master control circuit;
the receiving and transmitting power detection circuit, its detection end is connected with receiving and transmitting end of the wireless communication circuit; the receiving and transmitting power detection circuit is used for detecting the power of the receiving and transmitting signals of the wireless communication circuit and outputting the receiving and transmitting power detection signals; and the number of the first and second groups,
the input end of the protection trigger circuit is connected with the output end of the receiving and transmitting power detection circuit, and the output end of the protection trigger circuit is connected with the power feedback end of the main control circuit; the protection trigger circuit is used for outputting a protection trigger signal when the power of the transceiving signal is determined to be greater than a first preset power threshold value according to the transceiving power detection signal output by the transceiving power detection circuit;
and the main control circuit is used for controlling the working state of the wireless communication circuit according to the protection trigger signal when receiving the protection trigger signal.
Optionally, the wireless transceiving power monitoring circuit further comprises:
the control end of the prompting circuit is connected with the main control circuit;
the detection end of the main control circuit is also connected with the output end of the transceiving power detection circuit; the main control circuit is further used for controlling the prompt circuit to send corresponding alarm prompt information when the power of the transceiving signal is determined to be greater than the first preset power threshold value according to the transceiving power detection signal output by the transceiving power detection circuit.
Optionally, the main control circuit is further configured to control the prompting circuit to send corresponding alarm prompting information and control the wireless communication circuit to stop working when it is determined that the power of the received and transmitted signal is greater than a second preset power threshold; wherein the second preset power threshold is greater than the first preset power threshold.
Optionally, the first preset power threshold is integrated in the main control circuit;
the protection trigger circuit includes:
the input end of the digital-to-analog conversion circuit is connected with the bus end of the main control circuit so as to access a first preset power threshold value integrated by the main control circuit and output the first preset power threshold value after digital-to-analog conversion;
and the non-inverting input end of the comparator is the input end of the protection trigger circuit, the inverting input end of the comparator is connected with the output end of the digital-to-analog conversion circuit, and the output end of the comparator is the output end of the protection trigger circuit.
Optionally, the wireless transceiving power monitoring circuit further comprises:
the first input end of the self-checking control circuit is connected with the output end of the transceiving power detection circuit, the second input end of the self-checking control circuit is connected with the output end of the digital-to-analog conversion circuit, the output end of the self-checking control circuit is connected with the detection end of the main control circuit, and the self-checking control circuit is used for realizing the electric connection between the transceiving power detection circuit and the main control circuit when receiving a first switch control signal so as to output the transceiving power detection signal output by the transceiving power detection circuit to the detection end of the main control circuit; and the number of the first and second groups,
and when a second switch control signal is received, the digital-to-analog conversion circuit is electrically connected with the main control circuit, so that a first preset power threshold value after digital-to-analog conversion of the digital-to-analog conversion circuit is output to the detection end of the main control circuit.
Optionally, the wireless transceiving power monitoring circuit further comprises:
the output end of the mode selection circuit is connected with the main control circuit, and the mode selection circuit is used for outputting a corresponding mode selection signal to the main control circuit when being triggered;
the main control circuit is further configured to adjust the first preset power threshold according to the received mode selection signal.
Optionally, the wireless transceiving power monitoring circuit further comprises:
the output end of the switch mode selection circuit is connected with the main control circuit, and the switch mode selection circuit is used for outputting a corresponding switch mode selection signal to the main control circuit when being triggered;
the main control circuit is also used for starting/closing the monitoring function of the power of the receiving and transmitting signals according to the received switch mode selection signal and controlling the working state of the wireless communication circuit according to the received protection trigger signal when the main control circuit is started.
Optionally, the wireless transceiving power monitoring circuit further comprises:
the output end of the gear mode selection circuit is connected with the main control circuit, and the gear mode selection circuit is used for outputting a corresponding gear mode selection signal to the main control circuit when being triggered;
the main control circuit is further configured to match a transceiving power gear corresponding to the gear mode selection signal according to the received gear mode selection signal, and adjust the size of the first preset power threshold according to the matched transceiving power gear.
Optionally, the master control circuit includes:
the main controller is used for outputting a wireless starting signal;
the logic controller is respectively connected with the output end of the main controller, the output end of the protection trigger circuit and the controlled end of the wireless communication circuit; and the logic controller is used for converting the wireless opening signal output by the main controller into a wireless closing signal and outputting the wireless closing signal to the wireless communication circuit when receiving the protection trigger signal output by the protection trigger circuit so as to control the wireless communication circuit to stop working.
The invention also provides a mobile terminal with a wireless communication circuit, which comprises a radio frequency transceiving component, the wireless communication circuit and the wireless transceiving power monitoring circuit;
one end of the radio frequency transceiving module is connected with the transceiving end of the wireless communication circuit, and the transceiving end and the controlled end of the wireless communication circuit are respectively connected with the wireless transceiving power monitoring circuit.
The wireless transceiving power monitoring circuit provided by the invention is provided with the transceiving power detection circuit to detect the transceiving power of the wireless communication circuit in real time, so that the protection trigger circuit can determine that the transceiving power of the wireless communication circuit is too high according to the transceiving power detection signal output by the transceiving power detection circuit when the wireless communication circuit is damaged. The protection trigger circuit can also trigger the main control circuit to control the wireless communication circuit to enter a corresponding working state when the wireless communication circuit is determined, so that a user is prevented from using the mobile terminal with overlarge radiation for a long time under the unknowing condition; or, the damaged wireless communication circuit cannot generate excessive radiation, so that the problem that the mobile terminal with excessive transceiving power influences the body health of the user is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of a wireless transceiver power monitoring circuit according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of another embodiment of a remotely controllable wireless transceiver power monitoring circuit according to the present invention;
fig. 3 is a schematic circuit diagram of a wireless transceiver power monitoring circuit according to another embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 10 | |
60 | |
| 11 | |
70 | Switch mode selection circuit |
| 12 | |
80 | Gear |
| 20 | Transmit-receive |
90 | |
| 30 | |
100 | Radio |
| 31 | Digital-to-analog conversion circuit | T1 | Single-pole double-throw switch |
| 32 | Comparator with a comparator circuit | U1 | |
| 40 | Prompting circuit | E1 | Antenna with a |
| 50 | Self-checking control circuit |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a wireless transmitting and receiving power monitoring circuit.
Currently, a wireless communication circuit 90 such as bluetooth, WIFI, 4G or 5G, and a radio frequency transceiving component 100 (e.g., an antenna E1) are integrated in a mobile terminal such as a mobile phone, an IPAD, a learning machine, and the like to implement a wireless communication function of bidirectional data transmission with a signal transceiving source (e.g., a router or a server). The radio frequency transceiver module 100 is configured to convert an electrical signal output by a transceiver end of the wireless communication circuit 90 into a corresponding spatial electromagnetic wave and then transmit the spatial electromagnetic wave to a signal transceiver source; and a transceiver for receiving the spatial electromagnetic wave output by the server, converting the spatial electromagnetic wave into a corresponding electrical signal, and outputting the electrical signal to the wireless communication circuit 90. In everyday use, however, the user often inadvertently damages the wireless communication circuit 90 in the mobile terminal, such as: when the NV parameters of the WIFI driver are backed up, the mobile phone is suddenly powered off, so that the restarted NV parameters are abnormal; alternatively, power is turned off when the wireless driver is upgraded, resulting in a program write exception. Although the user can still use the wireless communication function, actually, the transmission/reception power of the wireless communication circuit 90 (i.e., the power of the transmission/reception signal at the transmission/reception end of the wireless communication circuit 90) becomes large. The increased receiving and transmitting power can cause the radio frequency receiving and transmitting component 100 to generate too much radiation when receiving and transmitting the space electromagnetic wave, so that if the user cannot know whether the wireless communication circuit 90 is damaged or not in time, the user can use the mobile terminal with too much radiation for a long time, and the health of the user is affected.
In view of the above problems, referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiving power monitoring circuit includes:
a main control circuit 10;
a transmission/reception power detection circuit 20 whose detection terminal is connected to the transmission/reception terminal of the wireless communication circuit 90; the transmission/reception power detection circuit 20 is configured to detect the power of the transmission/reception signal of the wireless communication circuit 90 and output a transmission/reception power detection signal; and the number of the first and second groups,
a protection trigger circuit 30, an input end of which is connected to the output end of the transmit-receive power detection circuit 20, and an output end of which is connected to the power feedback end of the main control circuit 10; the protection trigger circuit 30 is configured to output a protection trigger signal when it is determined that the power of the transceiving signal is greater than a first preset power threshold according to the transceiving power detection signal output by the transceiving power detection circuit 20;
the main control circuit 10 is configured to control the working state of the wireless communication circuit 90 according to the protection trigger signal when receiving the protection trigger signal.
In this embodiment, the main control circuit 10 may be electrically connected to each functional circuit in the wireless transceiver power monitoring circuit to receive feedback signals output by each functional circuit during operation, and may control the operating state of the corresponding functional circuit according to the received feedback signals, thereby implementing the overall monitoring of the wireless transceiver power monitoring circuit of the present invention. It is understood that, when the present invention is applied to a mobile terminal having the wireless communication circuit 90, the main control circuit 10 may also be a main control portion of the mobile terminal; the main control circuit 10 can output data signals such as encoded audio, video or byte signals to the wireless communication circuit 90, and can output corresponding control signals to control the wireless communication circuit 90 to send the received data signals to the server.
The transceiving power detection circuit 20 may be composed of a current detection circuit, a voltage detection circuit and a power calculation module; alternatively, a dedicated power detector may also be employed. The transceiving power detection circuit 20 may perform current detection and voltage detection on the electrical signal output from the transceiving end of the wireless communication circuit 90 to the rf transceiving module 100 by using the principle of resistor shunt or resistor voltage division, so as to obtain corresponding current detection signals and voltage detection signals, and may calculate the transmitting power of the wireless communication circuit 90 according to the obtained detection signals. It is understood that the transceiving power detecting circuit 20 further performs current detection and voltage detection on the electrical signal received by the transceiving end of the wireless communication circuit 90, i.e. the electrical signal output by the rf transceiving module 100, and can also calculate the receiving power of the wireless communication circuit 90 according to the obtained detection signals. The transmission/reception power detection circuit 20 may output a corresponding transmission/reception power detection signal according to the calculated reception power and transmission power, thereby implementing power detection of the transmission/reception signal of the wireless communication circuit 90 (the description of the present specification is made by "transmission/reception power" to mean "power of the transmission/reception signal").
The protection trigger circuit 30 may have a first predetermined power threshold pre-stored therein; alternatively, the first preset power threshold may be accessed from other functional circuits in the wireless transmit/receive power monitoring circuit. The protection triggering circuit 30 may call a pre-stored first preset power threshold upon receiving the transceiving power detection signal output by the transceiving power detection circuit 20, and run a hardware circuit or a software program and an algorithm for comparison to compare the transceiving power detection signal with the first preset power threshold. The protection trigger circuit 30 may determine that the transceiving power of the wireless communication circuit 90 is too high when the power value corresponding to the transceiving power detection signal is greater than the power value corresponding to the first preset power threshold, and may output a protection trigger signal indicating that the transceiving power is too high to the main control circuit 10 when the determination is made, so as to trigger the main control circuit 10 to adjust and control the wireless communication circuit 90. The first predetermined power threshold may be a value that generates a smaller amount of radiation according to a plurality of experiments, which is not limited herein.
The main control circuit 10 may output a corresponding control signal to the wireless communication circuit 90 when determining that the protection trigger signal is received, so that the wireless communication circuit 90 may control the working state of the corresponding functional circuit according to the received control signal to achieve the effect of reducing the transceiving power or turning off the wireless communication function. For example, the wireless communication circuit 90 may include a radio frequency modulation chip, a power modulation chip, and an antenna E1; the power modulation chip can modulate the power of the signal output by the radio frequency modulation chip and then output the signal to the antenna E1; or the signal output by the antenna E1 is output to a radio frequency modulation chip after being modulated by power; the main control circuit 10 can reduce the power of the transceiving signal by reducing the modulation multiple of the power modulation chip. Or, the modulation multiple can be controlled to be 0, so that the power modulation chip does not output any electric signal to the antenna E1, thereby achieving the effect of turning off the wireless communication function.
In this way, when the wireless communication circuit 90 is damaged, the main control circuit 10 can help the user to avoid the physical health of the user from being affected by excessive radiation by controlling the operating state of the wireless communication circuit 90. Specifically, the main control circuit 10 may control the wireless communication circuit 90 to stop working, so that the user can know that the wireless communication circuit 90 is damaged by failing to start the wireless communication function, and the user can timely send the mobile terminal to be overhauled, thereby avoiding the user from using the mobile terminal with excessive radiation for a long time under the unknown condition; or, the main control circuit 10 can also control the wireless communication circuit 90 to reduce its transmit-receive power, so that the damaged wireless communication circuit 90 will not generate excessive radiation, thereby solving the problem that the mobile terminal with excessive transmit-receive power will affect the health of the user.
Referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiver power monitoring circuit further includes:
a prompt circuit 40, the controlled end of which is connected with the main control circuit 10;
the detection end of the main control circuit 10 is further connected with the output end of the transceiving power detection circuit 20; the main control circuit 10 is further configured to control the prompt circuit 40 to send a corresponding alarm prompt message when it is determined that the power of the transceiving signal is greater than the first preset power threshold according to the transceiving power detection signal output by the transceiving power detection circuit 20.
The prompting circuit 40 can be one or more of a buzzer, a colored light, a horn or a display screen. The main control circuit 10 may be provided with a microprocessor, and may access the transceiving power detection signal output by the transceiving power detection circuit 20 through an AD terminal of the microprocessor. The main control circuit 10 can perform analog-to-digital conversion on the receiving and sending power detection signal of the analog signal, so that the receiving and sending power detection signal is converted into a digital signal and then compared with a first preset power threshold, and when the receiving and sending power detection signal is greater than the first preset power threshold according to the comparison result, the driving prompt circuit 40 sends out alarm prompt information in the forms of vibration, light, voice broadcast or display prompt characters and the like, for example: driving a display screen to display the character that the WIFI communication module is damaged; alternatively, the colored lights are driven to emit yellow light. According to the technical scheme, the alarm prompt function is set, so that the user can be timely reminded when the receiving and sending power of the wireless communication circuit 90 exceeds the standard, and the efficiency of sending the mobile terminal to the maintenance by the user is improved.
Referring to fig. 1 to fig. 3, in an embodiment of the present invention, the main control circuit 10 is further configured to control the prompt circuit 40 to send a corresponding alarm prompt message and control the wireless communication circuit 90 to stop working when it is determined that the power of the transceiving signal is greater than a second preset power threshold; wherein the second preset power threshold is greater than the first preset power threshold.
In practical applications, the user may ignore the alarm prompt message sent by the prompt circuit 40, and the mobile terminal is not sent to the service, but continues to be used. However, if the wireless communication circuit 90 continues to be damaged in subsequent use, the amount of radiation experienced by the user increases. To this end, in the technical solution of the present application, a second preset power threshold is further set in the main control circuit 10, and the second preset power threshold may select a numerical value that generates a large amount of radiation according to multiple experiments, for example: 2 or more times the first predetermined power threshold may be selected. The main control circuit 10 may drive the prompting circuit 40 to issue a warning prompt message indicating a more urgent situation when determining that the transceiving power of the wireless communication circuit 90 is greater than the second preset power threshold, for example: and driving the display screen to display that the WIFI communication module is seriously damaged, or driving the color lamp to emit red light. At this time, the main control circuit 10 also forcibly controls the wireless communication circuit 90 to stop working, so that the user cannot continue to use the wireless communication function of the terminal device. Therefore, the mobile terminal with the overlarge radiation amount can be prevented from being continuously used when the radiation of the mobile terminal is overlarge, the user can forcibly send the terminal equipment to be overhauled, and the efficiency of overhauling the mobile terminal by the user is further improved.
Referring to fig. 1 to 3, in an embodiment of the present invention, the first predetermined power threshold is integrated in the main control circuit 10;
the protection trigger circuit 30 includes:
an input end of the digital-to-analog conversion circuit 31 is connected with the bus end of the main control circuit 10, so as to access a first preset power threshold integrated by the main control circuit 10, and the digital-to-analog conversion circuit is used for performing digital-to-analog conversion on the first preset power threshold and outputting the first preset power threshold;
a comparator 32, whose non-inverting input terminal is the input terminal of the protection trigger circuit 30, whose inverting input terminal is connected to the output terminal of the digital-to-analog conversion circuit 31, and whose output terminal is the output terminal of the protection trigger circuit 30.
The main control circuit 10 can adjust a first preset power threshold of the digital signal, and output the first preset power threshold to the digital-to-analog conversion circuit 31 from the bus end thereof, so as to output the first preset power threshold to the inverting end of the comparator 32 after being converted into the analog signal by the digital-to-analog conversion circuit 31. The comparator 32 may compare the transceiving power detection signal of the analog signal with a first preset power threshold of the analog signal, and may output a protection trigger signal of a high-level signal when the signal amplitude of the transceiving power detection signal is greater than the signal amplitude of the first preset power threshold; and outputting a low level signal when the signal amplitude is smaller than a first preset power threshold; the output level equal to the previous level may also be maintained at a signal amplitude equal to the first preset power threshold. Of course, in other embodiments, the protection trigger signal may also be a low level signal. According to the technical scheme, the comparison function is realized by adopting a hardware circuit mode, so that abnormal conditions such as software runaway and the like can be avoided, and the working stability of the wireless transceiving power monitoring circuit is improved.
Referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiver power monitoring circuit further includes:
a self-checking control circuit 50, a first input end of which is connected to the output end of the transceiving power detecting circuit 20, a second input end of which is connected to the output end of the digital-to-analog converting circuit 31, and an output end of which is connected to the detecting end of the main control circuit 10, wherein the self-checking control circuit 50 is configured to electrically connect the transceiving power detecting circuit 20 and the main control circuit 10 when receiving a first switch control signal, so as to output a transceiving power detecting signal output by the transceiving power detecting circuit 20 to the detecting end of the main control circuit 10; and when the second switch control signal is received, the digital-to-analog conversion circuit 31 is electrically connected with the main control circuit 10, so that the first preset power threshold value after digital-to-analog conversion of the digital-to-analog conversion circuit 31 is output to the detection end of the main control circuit 10.
In this embodiment, the self-checking control circuit 50 may be implemented by a first or a combination of multiple kinds of switching devices such as a triode, a MOS transistor, or a thyristor, or may also be implemented by using a single-pole double-throw switch T1. In the manufacturing and testing stage of the mobile terminal, the second switch control signal is output to the self-checking control circuit 50, so that the bus end of the main control circuit 10 can be electrically connected with the detection end of the main control circuit through the digital-to-analog conversion circuit 31, and the main control circuit 10 can control the display screen of the mobile terminal to display the first preset power threshold according to the first preset power threshold accessed by the detection end. It is convenient for the tester to check and correct the first preset power threshold preset in each mobile terminal at this stage, and it should be noted that the first switch control signal at this stage may be output by the test fixture triggering the main control circuit 10. After the verification is completed, the main control circuit 10 may detect the detection signal according to the received transmit-receive power by outputting the first switch control signal to the self-checking control circuit 50, so as to control the display screen of the mobile terminal to display the transmit-receive power of the wireless communication circuit 90 in real time. It should be noted that the second switch control signal at this stage can be output from the touch panel of the mobile terminal to trigger the main control circuit 10.
Referring to fig. 1 to 3, in an embodiment of the present invention, the protection trigger circuit 30 further includes:
a mode selection circuit 60, an output end of which is connected to the main control circuit 10, wherein the mode selection circuit 60 is configured to output a corresponding mode selection signal to the main control circuit 10 when being triggered;
the main control circuit 10 is further configured to adjust the first preset power threshold according to the received mode selection signal.
The mode selection circuit 60 may generate key signals related to user settings and function control of the mobile terminal. In particular, the mode selection circuit 60 may include a touch panel as well as other input devices. The touch panel, also called a touch screen, can detect a touch position of a user and a signal caused by a touch operation, convert the signal into a corresponding key signal according to the detected touch position, and send the key signal to the main control circuit 10. The touch panel can be realized by various types such as resistance, capacitance, infrared rays, surface acoustic waves and the like; other input devices may include, but are not limited to, one or more of a physical keyboard, function keys, a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples. The main control circuit 10 may determine a power value corresponding to the key signal when receiving the key signal representing the mode selection, and may configure the determined power value as a first preset power threshold, thereby implementing setting of the first preset power threshold. Therefore, a user can flexibly adjust the first preset power threshold value according to actual needs, and the flexibility of using the wireless transceiving power monitoring circuit by the user is greatly improved.
Referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiver power monitoring circuit further includes:
a switch mode selection circuit 70, an output end of which is connected to the main control circuit 10, wherein the switch mode selection circuit 70 is configured to output a corresponding switch mode selection signal to the main control circuit 10 when being triggered;
the main control circuit 10 is further configured to turn on/off a monitoring function of the power of the transmission and reception signal according to the received switch mode selection signal, and control a working state of the wireless communication circuit 90 according to the received protection trigger signal when the main control circuit is turned on.
The switch mode selection circuit 70 can be implemented by a touch panel and other input devices in the above embodiment, which is not described herein. The switch mode selection circuit 70 may output a switch mode selection signal of a level signal to the main control circuit 10 when being triggered, and the embodiment is explained by taking an example that a switch mode selection signal of a high level represents the on monitoring function, and a switch mode selection signal of a low level represents the off monitoring function. The main control circuit 10 may access various level signals output by the protection trigger circuit 30 when receiving a high-level switch mode selection signal, and may control the operating state of the wireless communication circuit 90 according to the various level signals output by the protection trigger circuit 30, thereby implementing the start of monitoring the transmit-receive power. When receiving the switch mode selection signal of low level, the access protection triggering circuit 30 may refuse to output the level signal, and at this time, the main control circuit 10 controls the wireless communication circuit 90 to normally operate, thereby implementing the monitoring of the receiving and transmitting power. The invention enables the user to freely turn on or off the monitoring function of the transmitting and receiving power according to the actual situation by setting the switch mode selection circuit 70, which is beneficial to further improving the convenience of the user.
Referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiver power monitoring circuit further includes:
the output end of the gear mode selection circuit 80 is connected to the main control circuit 10, and the gear mode selection circuit 80 is configured to output a corresponding gear mode selection signal to the main control circuit 10 when being triggered;
the main control circuit 10 is further configured to match a receiving/transmitting power gear corresponding to the gear mode selection signal according to the received gear mode selection signal, and adjust the first preset power threshold according to the matched receiving/transmitting power gear.
In this embodiment, the gear mode selection circuit 80 can be implemented by using a multi-gear switch such as a dial switch; alternatively, the touch panel and other input devices of the above embodiments may also be used to construct an implementation. The gear mode selection circuit 80 may output different gear mode selection signals to the main control circuit 10 when triggered. The main control circuit 10 may have a plurality of transmission/reception power levels, and each transmission/reception power level has a preset power threshold corresponding thereto. The main control circuit 10 may compare and match the acquired shift pattern selection signal with each transceiving power shift to match a corresponding transceiving power shift when acquiring the shift pattern selection signal, and may configure the corresponding preset power threshold as the first preset power threshold according to the determination result, thereby implementing adjustment of the first preset power threshold to a size corresponding to the matched transceiving power shift. For example, the main control circuit 10 may be provided with three high, medium and low transmission/reception power stages, and the user may configure the first preset power threshold to a higher value, a medium value or a low value directly through the stage mode selection circuit 80, so that the user does not need to pay attention to the configuration logic of the first preset power threshold, and may configure the first preset power threshold directly through the stage mode selection circuit 80.
Referring to fig. 1 to 3, in an embodiment of the present invention, the wireless transceiver power monitoring circuit further includes:
a main controller 11 for outputting a wireless start signal;
a logic controller 12, which is respectively connected to the output terminal of the main controller 11, the output terminal of the protection trigger circuit 30, and the controlled terminal of the wireless communication circuit 90; the logic controller 12 is configured to, when receiving the protection trigger signal output by the protection trigger circuit 30, convert the wireless on signal output by the main controller 11 into a wireless off signal and output the wireless off signal to the wireless communication circuit 90, so as to control the wireless communication circuit 90 to stop working.
In this embodiment, the main controller 11 may be a microprocessor such as an MCU, a DSP, or an FPGA, or may also be implemented by using a dedicated main control chip U1; the Logic controller 12 may be a Complex Programmable Logic Device (CPLD). When the wireless communication circuit 90 normally works, the main controller 11 can output a wireless start signal for controlling the wireless communication circuit 90 to normally work, and the protection trigger circuit 30 outputs a low level signal to the logic controller 12 at this time, so that the logic controller 12 can output the wireless start signal output by the main controller 11 to the wireless communication circuit 90 to drive it to realize the wireless communication function. When the transceiving power of the wireless communication circuit 90 is too high, the main controller 11 may still output the wireless on signal, and at this time, the protection trigger circuit 30 outputs the protection trigger signal of the high level signal, so as to trigger the logic controller 12 to convert the wireless on signal output by the main controller 11 into the wireless off signal for controlling the wireless communication circuit 90 to stop working, and then output the wireless off signal to the wireless communication circuit 90, so as to control the wireless communication circuit 90 to stop working.
The invention also provides a mobile terminal with a wireless communication circuit, which is characterized in that the mobile terminal with the wireless communication circuit comprises a radio frequency transceiving component 100, a wireless communication circuit 90 and the wireless transceiving power monitoring circuit;
the radio frequency transceiver module 100 is connected to the transceiver end of the wireless communication circuit, and the transceiver end and the controlled end of the wireless communication circuit are respectively connected to the wireless transceiver power monitoring circuit.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, which are within the spirit of the present invention, are included in the scope of the present invention.
Claims (5)
1. A wireless transmission/reception power monitoring circuit adapted for use in a mobile terminal having a wireless communication circuit, the wireless transmission/reception power monitoring circuit comprising:
a master control circuit;
the detection end of the receiving and transmitting power detection circuit is connected with the receiving and transmitting end of the wireless communication circuit; the receiving and transmitting power detection circuit is used for detecting the power of the receiving and transmitting signals of the wireless communication circuit and outputting the receiving and transmitting power detection signals; and (c) a second step of,
the input end of the protection trigger circuit is connected with the output end of the receiving and transmitting power detection circuit, and the output end of the protection trigger circuit is connected with the power feedback end of the main control circuit; the protection trigger circuit is used for outputting a protection trigger signal when the power of the transceiving signal is determined to be greater than a first preset power threshold value according to the transceiving power detection signal output by the transceiving power detection circuit;
the main control circuit is used for controlling the working state of the wireless communication circuit according to the protection trigger signal to reduce the transceiving power of the wireless communication circuit or close the wireless communication circuit when receiving the protection trigger signal, so as to avoid the influence on the body health of a user caused by the overlarge power of the transceiving signal and the overlarge radiation due to damage when the wireless communication circuit executes the wireless communication function of the mobile terminal;
the wireless transmitting and receiving power monitoring circuit further comprises:
the controlled end of the prompting circuit is connected with the main control circuit;
the detection end of the main control circuit is also connected with the output end of the transceiving power detection circuit; the main control circuit is also used for controlling the prompting circuit to send corresponding alarm prompting information when the power of the transceiving signal is determined to be larger than the first preset power threshold value according to the transceiving power detection signal output by the transceiving power detection circuit, so that the user can be reminded of paying attention in time when the transceiving power of the wireless communication circuit exceeds the standard, and the user can be accelerated to send the mobile terminal to overhaul;
the main control circuit is further used for controlling the prompt circuit to send corresponding alarm prompt information and controlling the wireless communication circuit to stop working when the power of the transmitting and receiving signal is determined to be larger than a second preset power threshold value, so that a user cannot continue to use the wireless communication function of the terminal equipment, and the user is prevented from continuing to use the mobile terminal with the overlarge radiation amount when the radiation of the mobile terminal is overlarge, so that the user can forcibly send the terminal equipment to be overhauled; wherein the second preset power threshold is greater than the first preset power threshold;
the first preset power threshold is integrated in the main control circuit;
the protection trigger circuit includes:
the input end of the digital-to-analog conversion circuit is connected with the bus end of the main control circuit so as to access a first preset power threshold value integrated by the main control circuit and output the first preset power threshold value after digital-to-analog conversion;
the non-inverting input end of the comparator is the input end of the protection trigger circuit, the inverting input end of the comparator is connected with the output end of the digital-to-analog conversion circuit, and the output end of the comparator is the output end of the protection trigger circuit;
the wireless transmitting and receiving power monitoring circuit further comprises:
the first input end of the self-checking control circuit is connected with the output end of the receiving and sending power detection circuit, the second input end of the self-checking control circuit is connected with the output end of the digital-to-analog conversion circuit, the output end of the self-checking control circuit is connected with the detection end of the main control circuit, and the self-checking control circuit is used for realizing the electric connection of the receiving and sending power detection circuit and the main control circuit when receiving a first switch control signal so as to output the receiving and sending power detection signal output by the receiving and sending power detection circuit to the detection end of the main control circuit, so that the main control circuit controls a display screen of the mobile terminal to display a first preset power threshold value according to the first preset power threshold value accessed by the detection end; and (c) a second step of,
when a second switch control signal is received, the digital-to-analog conversion circuit is electrically connected with the main control circuit, so that a first preset power threshold value after digital-to-analog conversion of the digital-to-analog conversion circuit is output to a detection end of the main control circuit;
the wireless transmitting and receiving power monitoring circuit further comprises:
the output end of the mode selection circuit is connected with the main control circuit, and the mode selection circuit is used for outputting a corresponding mode selection signal to the main control circuit when being triggered;
the main control circuit is further configured to adjust the first preset power threshold according to the received mode selection signal.
2. The wireless transmit receive power monitoring circuit of claim 1, wherein the wireless transmit receive power monitoring circuit further comprises:
the output end of the switch mode selection circuit is connected with the main control circuit, and the switch mode selection circuit is used for outputting a corresponding switch mode selection signal to the main control circuit when being triggered;
the main control circuit is further configured to turn on/off a monitoring function of the power of the transmission and reception signal according to the received switch mode selection signal, and control a working state of the wireless communication circuit according to the received protection trigger signal when the main control circuit is turned on.
3. The wireless transmit receive power monitoring circuit of claim 1, wherein the wireless transmit receive power monitoring circuit further comprises:
the output end of the gear mode selection circuit is connected with the main control circuit, and the gear mode selection circuit is used for outputting a corresponding gear mode selection signal to the main control circuit when being triggered;
the main control circuit is further configured to match a transceiving power gear corresponding to the gear mode selection signal according to the received gear mode selection signal, and adjust the size of the first preset power threshold according to the matched transceiving power gear.
4. The wireless transmit/receive power monitoring circuit according to any one of claims 1 to 3, wherein the master circuit comprises:
the main controller is used for outputting a wireless starting signal;
the logic controller is respectively connected with the output end of the main controller, the output end of the protection trigger circuit and the controlled end of the wireless communication circuit; and the logic controller is used for converting the wireless opening signal output by the main controller into a wireless closing signal and outputting the wireless closing signal to the wireless communication circuit when receiving the protection trigger signal output by the protection trigger circuit so as to control the wireless communication circuit to stop working.
5. A mobile terminal having wireless communication circuitry, wherein the mobile terminal having wireless communication circuitry comprises radio frequency transceiver components, wireless communication circuitry, and the wireless transceiver power monitoring circuitry of any of claims 1-4;
one end of the radio frequency transceiving module is connected with the transceiving end of the wireless communication circuit, and the transceiving end and the controlled end of the wireless communication circuit are respectively connected with the wireless transceiving power monitoring circuit.
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