CN112398318A - Power supply control device and communication-in-motion equipment - Google Patents
Power supply control device and communication-in-motion equipment Download PDFInfo
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- CN112398318A CN112398318A CN202011183940.0A CN202011183940A CN112398318A CN 112398318 A CN112398318 A CN 112398318A CN 202011183940 A CN202011183940 A CN 202011183940A CN 112398318 A CN112398318 A CN 112398318A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
Abstract
The application provides a power control device and move and lead to equipment in, relates to power technical field, and this power control device includes: the processing module is respectively and electrically connected with the input end, the output end and the detection module; the detection module is used for detecting the power supply state of the input end, and the power supply state is a first state at least comprising alternating current or a second state which is not alternating current: the processing module is used for converting the alternating current into direct current and transmitting the direct current to the output end when the power supply state is a first state; and the power supply circuit is also used for transmitting the non-alternating current to the output end when the power supply state is a second state. The power supply control device detects the power supply state of the input end through the detection module, so that the processing module can be automatically adjusted according to different power supply states, direct current is uniformly output to the communication-in-motion equipment, and a safe power supply mode is provided for the communication-in-motion equipment.
Description
Technical Field
The application belongs to the technical field of power supplies, and particularly relates to a power supply control device and a communication-in-motion device.
Background
The communication-in-motion equipment refers to mobile satellite ground station communication equipment and aims to provide tracking communication of platforms such as real-time satellites and the like for application carriers such as vehicles, ships, airplanes and the like in motion and continuously transmit multimedia information so as to meet the requirements of multimedia communication under various emergency communication and mobile conditions.
When the satellite communication-in-motion equipment is used on the sea, for example, application carriers such as ships of various sizes, offshore operation platforms, offshore wind power and the like, because the application environments are various and the application carriers do not have a uniform power supply scheme, various situations of alternating current power supply, direct current power supply and other unstable power supply exist; meanwhile, because the generators on different application carriers are different, even if various application carriers provide direct current power supply, the direct current power supply has different quality, and therefore a very complex power supply environment is caused for communication-in-motion equipment.
Under the complex power supply environment, once the installation operation is improper or errors occur when the communication-in-motion equipment is installed, the communication-in-motion equipment is easily burnt, unnecessary economic loss is caused, and the marine application carrier usually has long-time departure operation, so that the damaged communication-in-motion equipment cannot be repaired and replaced in time in a port, and further the application carrier using the communication-in-motion equipment generates a long-time information island effect. Therefore, the communication-in-motion equipment needs to have a safe power supply method.
Disclosure of Invention
The embodiment of the application provides a power supply control device and a communication-in-motion device, which can provide a safe power supply mode for the communication-in-motion device.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, a power control apparatus is provided, which is applied to a mobile communication device, and includes: the device comprises a detection module and a processing module; the processing module is respectively and electrically connected with the input end, the output end and the detection module; the detection module is used for detecting the power supply state of the input end, wherein the power supply state is a first state at least comprising alternating current or a second state which is not alternating current; the processing module is used for converting the alternating current into direct current and transmitting the direct current to the output end when the power supply state is a first state; and is also used for transmitting non-alternating current to the output end when the power supply state is the second state.
The power control device provided by the first aspect comprises a detection module and a processing module, wherein the detection module detects the power supply state of an input end, and then the processing module automatically carries out different processing according to different power supply states. For example, when the power supply state at least comprises alternating current, the alternating current is converted into direct current and is transmitted to the output end, and when the power supply state is non-alternating current, the non-alternating current is transmitted to the output end, so that for various input conditions, the embodiment of the application can ensure that the output is unified into direct current, and a safe power supply mode can be provided for communication-in-motion equipment.
In a possible implementation manner of the first aspect, the detection module is a current transformer; the current transformer includes: the first inductor is provided with a first end and a second end, the first end is electrically connected with the grounding end, and the second end is electrically connected with the processing module; the current transformer is used for providing a first detection signal to the processing module through the second end when the power supply state is detected to be the first state, and the first detection signal is used for indicating that the power supply state is the first state; the current transformer is further used for providing a second detection signal for the processing module through the second end when the power supply state is detected to be the second state, and the second detection signal is used for indicating that the power supply state is the second state. In this implementation, whether the input of the input terminal includes ac power is detected by the current transformer, so that the current transformer can provide a corresponding detection result to the processing module through the second terminal.
In a possible implementation manner of the first aspect, the current transformer further includes: a first resistor connected in parallel to the first inductor. In this implementation, a first resistance protection circuit is utilized.
In a possible implementation manner of the first aspect, the processing module includes: the device comprises a control unit, a switching unit and an alternating current-direct current unit; the control unit is electrically connected with the second end of the current transformer, the switching unit is electrically connected with the input end, the output end, the control unit and the AC-to-DC unit respectively, and the AC-to-DC unit is also electrically connected with the output end;
the control unit is used for providing a first control signal to the switching unit when receiving the first detection signal, or providing a second control signal to the switching unit when receiving the second detection signal;
the switching unit is used for conducting the input end and the AC-to-DC unit under the control of the first control signal, transmitting the AC input by the input end to the AC-to-DC unit, and converting the AC into DC by the AC-to-DC unit and transmitting the DC to the output end; or the switching unit is further configured to conduct the input terminal and the output terminal under the control of the second control signal, and transmit the non-alternating current input from the input terminal to the output terminal. In the implementation mode, the control unit is used for generating corresponding control signals according to the detection result of the receiving current transformer, so that the control signals are used for controlling the switching unit to switch, and different circuits are conducted, so that different input power supplies are subjected to different processing.
In a possible implementation manner of the first aspect, the switching unit includes a relay, the relay is electrically connected to the control unit, the relay includes a first contact point, a second contact point and a third contact point, the first contact point is electrically connected to the input end, the second contact point is electrically connected to the ac-to-dc converting unit, and the third contact point is electrically connected to the output end; the relay is used for conducting the first contact point and the second contact point under the control of the first control signal; and the first contact point and the third contact point are conducted under the control of the second control signal. In this implementation, relays are utilized to switch to conduct the different circuits.
In a possible implementation manner of the first aspect, the processing module further includes a voltage stabilizing unit; the voltage stabilizing unit is connected between the third contact point and the output end and is also electrically connected with the alternating current-to-direct current unit, and the voltage stabilizing unit is used for stabilizing the direct current converted by the alternating current-to-direct current unit and transmitting the stabilized direct current to the output end when the power supply state is the first state; and the power supply circuit is also used for stabilizing the non-alternating current input from the third contact point and transmitting the stabilized non-alternating current to the output end when the power supply state is the second state.
In a second aspect, a mobile communication device is provided, which includes the power control apparatus in the first aspect or any possible implementation manner of the first aspect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an application scenario diagram provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a power supply control device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another power control apparatus provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another power control apparatus provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of another power control apparatus provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of another power control apparatus provided in the embodiment of the present application;
fig. 7 is a schematic flowchart of a power control method according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood 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 one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.
Further, in this application, "left", "right", and like directional terms may include, but are not limited to, being defined with respect to a schematically-disposed orientation of components in the drawings, it being understood that these directional terms may be relative concepts that are used for relative description and clarification, and that may vary accordingly depending on the orientation of the components in the drawings.
In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. Further, the term "electrically connected" may be a manner of electrically connecting that enables signal transmission. "electrically connected" may be a direct electrical connection or an indirect electrical connection through an intermediary.
Fig. 1 shows an application scenario diagram of a power control device according to an embodiment of the present application. The satellite communication link shown in fig. 1 generally includes a satellite, a ground station, a control center station, and a mobile terminal. In the satellite communication link, communication between mobile users or between a mobile user and a fixed user can be realized by transmitting signals through a satellite as a relay station.
As shown in fig. 1, the control center is provided with a server. The control center station is used for managing the satellite and each ground station. On the basis, the ground station can be divided into static communication equipment, communication-in-motion equipment and the like according to different use environments.
It should be noted that a stationary device is understood as a stationary ground station, which refers to a communication connection established between satellite stations at a fixed location via a satellite access network. The communication-in-motion device can be understood as a mobile ground station, which means that the ground station is arranged on an application carrier, and a satellite is tracked in real time and is in communication connection with a satellite station in the process of moving along with the application carrier. The application carrier is, for example, a vehicle, a ship, an airplane, etc.
For example, when the mobile communication equipment is used on the sea, for example, when the mobile communication equipment is used on application carriers such as ships of various sizes, offshore operation platforms, offshore wind power, and the like, because the use environments are various and the application carriers do not have a uniform power supply scheme, there are various situations of alternating current power supply, direct current power supply, and other unstable power supplies (for example, alternating current/direct current alternative power supply or simultaneous power supply); meanwhile, because the power generation modes on different carriers are possibly different and the types of the generators are also different, even if various carriers provide direct current power supply, the direct current power supply has good or bad variation, and therefore a very complex power supply environment is caused for communication-in-motion equipment.
Under the complex power supply environment, once the installation operation is improper or errors occur when the communication-in-motion equipment is installed, the communication-in-motion equipment is easily burnt, unnecessary economic loss is caused, and the marine application carrier usually has long-time departure operation, so that the damaged communication-in-motion equipment cannot be repaired and replaced in time in a port, and further the application carrier using the communication-in-motion equipment generates a long-time information island effect. Therefore, the communication-in-motion equipment needs a safe power supply mode.
In view of this, an embodiment of the present application provides a power control apparatus, which includes a detection module and a processing module, where the detection module detects a power supply state of an input terminal, and then the processing module automatically performs different processing according to different power supply states. For example, when alternating current is input, the alternating current is converted into direct current, and when no alternating current is input, non-alternating current is output from the output end, so that for various power supply states, the embodiment of the application can ensure that the output is unified into direct current, and a safe power supply mode can be provided for communication-in-motion equipment.
The following describes in detail the structure of the power supply control device provided in the embodiment of the present application.
Fig. 2 shows a schematic configuration of a power control apparatus. As shown in fig. 2, an embodiment of the present application provides a power control apparatus, which is applied to a mobile communication device. The power supply control device can be positioned inside the communication-in-motion equipment or positioned outside the communication-in-motion equipment.
As shown in fig. 2, the power control apparatus 1 includes a detection module 10 and a processing module 20. The processing module 20 is electrically connected to the input terminal Vin, the output terminal Vout, and the detecting module 10, respectively.
The detection module 10 is configured to detect a power supply state of the input terminal Vin. The power supply state is a first state at least comprising alternating current or a second state which is not alternating current.
The processing module 20 is configured to convert the ac power into dc power and transmit the dc power to the output terminal Vout when the power supply state is the first state; and is also used for transmitting non-alternating current to the output terminal Vout when the power supply state is the second state.
It is understood that a first state comprising at least alternating current means alternating current only, or both alternating current and direct current, and a second state not alternating current means direct current only, or no current.
When the input of the input end Vin is only alternating current, the power supply state is a first state; when the input of the input terminal Vin includes both ac and dc, the power supply state is also the first state; when the input of the input end Vin is only direct current, the power supply state is a second state; when the input terminal Vin has no input, it is also considered as the second state.
Based on this, when the detection module 10 detects that the power supply state of the input end Vin is the first state, if the input of the input end Vin is only ac, the processing module 20 may convert the ac into dc and output the dc from the output end Vout; if the input at the input terminal Vin includes both ac and dc, the processing module 20 preferably uses ac to convert only ac to dc and output from the output terminal Vout.
When the detection module 10 detects that the power supply state of the input terminal Vin is the second state, if the input of the input terminal Vin is only direct current, the processing module 20 turns on the input terminal Vin and the output terminal Vout, so that the direct current can be directly output from the output terminal Vout; if the input terminal Vin has no input, that is, neither ac nor dc is input, the processing module 20 turns on the input terminal Vin and the output terminal Vout without any influence on the circuit.
Because the power supply control device can automatically process according to different input conditions without manual judgment and intervention, a user does not worry about the problem of equipment damage caused by wrong power supply connection or improper switching, and the stability and reliability of the power supply can be ensured during subsequent use.
It should be noted that the detection module 10 for detecting the power supply state of the input terminal Vin may be electrically connected to the input terminal Vin, or may not be electrically connected to the input terminal, as long as the power supply state of the input terminal can be detected, which is not limited in this embodiment of the application.
In addition, the power control apparatus may further include an indicator lamp for distinguishing whether the detection module 10 detects the direct current or does not detect the input in the second state, for example, the indicator lamp is turned on when the detection module 10 detects the direct current, and the indicator lamp is turned off not to be displayed when the detection module 10 does not detect the input. On this basis, when the detection module detects that the power supply state of the input terminal Vin is the first state, the indicator light can be turned on. Therefore, when the user uses the power supply control device, whether the power supply control device works or not can be visually distinguished through the indicating lamp.
The embodiment of the application provides a power control device, including detection module and processing module, detect the power supply state of input through detection module, then, processing module carries out different processing according to the power supply state automation of difference. For example, when the power supply state is a first state at least comprising alternating current, the alternating current is converted into direct current, and when the power supply state is a second state not comprising the alternating current, the non-alternating current is transmitted to the output end, so that for various inputs, the embodiment of the application can ensure that the output is unified into the direct current, and a safe power supply mode can be provided for the communication-in-motion equipment.
Alternatively, fig. 3 shows a schematic structural diagram of another power control device. In the embodiment of the present application, as shown in fig. 3, the detection module 10 includes a current transformer. Of course, the detection module 10 may also include other devices, which are not limited in any way by this application.
The current transformer includes: a first inductor L1 having a first terminal a electrically connected to the ground GND and a second terminal b electrically connected to the processing module 10.
The current transformer is sleeved on the input end Vin and used for providing a first detection signal to the processing module 20 through the second end b when the power supply state is detected to be the first state, and the first detection signal is used for indicating that the power supply state is the first state;
the current transformer is further configured to provide a second detection signal to the processing module 20 through the second terminal b when the power supply state is detected to be the second state, where the second detection signal is used to indicate that the power supply state is the second state.
It should be noted that, the processing module 10 may also be electrically connected to the input end Vin by using an input line, at this time, the input line may be wound on a current transformer, so that the current transformer detects whether the power transmitted on the input line has ac power, and thus, when the ac power exists, the current transformer provides a first detection signal to the processing module 20 through the second end b; in the absence of ac current, the current transformer provides a second detection signal to the processing module 10 via the second terminal b.
The first detection signal may be at a high level and the second detection signal is at a low level, or the first detection signal may be at a low level and the second detection signal is at a high level. The present application is not limited in this respect.
Optionally, in this embodiment of the present application, as shown in fig. 3, the current transformer further includes: a first resistor R1 connected in parallel to the first inductor L1.
One end of the first resistor R1 is electrically connected to the first end a of the first inductor L1, and the other end is electrically connected to the second end b of the first inductor L1. The first resistor R1 is used to protect the circuit.
It should be noted that the current transformer may further include a plurality of resistors connected in parallel to the first inductor L1. The above is merely an example of the current transformer, and other structures having the same functions as the current transformer are not described in detail here, but all of them should fall into the protection scope of the present invention.
Alternatively, fig. 4 shows a schematic structural diagram of another power control device. In the embodiment of the present application, as shown in fig. 4, the processing module 20 may include: a control unit 21, a switching unit 22 and an ac-to-dc unit 23.
The control unit 21 is electrically connected to the second end b of the current transformer, the switching unit 22 is electrically connected to the input terminal Vin, the output terminal Vout, the control unit 21 and the ac-to-dc unit 23, and the ac-to-dc unit 23 is also electrically connected to the output terminal Vout.
When the detection module 10 is a current transformer, the control unit 21 is configured to provide a first control signal to the switching unit 22 when receiving a first detection signal output by the second terminal b, or provide a second control signal to the switching unit 22 when receiving a second detection signal.
The switching unit 22 is configured to switch on the input end Vin and the ac-to-dc unit 23 under the control of the first control signal, and transmit the ac input from the input end Vin to the ac-to-dc unit, and the ac-to-dc unit converts the ac into dc and transmits the dc to the output end Vout.
The switching unit 22 is further configured to conduct the input terminal Vin and the output terminal Vout under the control of the second control signal, and transmit the non-alternating current input from the input terminal Vin to the output terminal Vout.
The first control signal may be at a low level and the second control signal is at a high level, or the first control signal may be at a high level and the second control signal is at a low level. Alternatively, the first control signal and the second control signal may also be signals in other forms, as long as the processing module can distinguish different processing performed on different detection signals, and the application does not specially limit the processing.
It can be understood that the switching unit 22 switches on the input terminal Vin and the ac-to-dc unit 23 under the control of the first control signal, so that when the input at the input terminal Vin includes ac power, the ac power can be preferentially used, and the ac-to-dc unit converts the ac power into dc power and outputs the dc power.
The switching unit 22 switches on the input terminal Vin and the output terminal Vout under the control of the second control signal, so that the dc power can be output from the output terminal Vout when there is no ac power input to the input terminal Vin, for example, dc power. Here, when the input terminal Vin is not input, the switching unit 22 turns on the input terminal Vin and the output terminal Vout has no influence on the circuit.
Here, the ac-dc conversion unit may adopt various ac-dc conversion circuits in the prior art, as long as the ac-dc conversion unit can convert ac into dc, and the specific connection mode of the circuit may be set as required, which is not particularly limited in this application. On the basis, the circuit can also comprise devices for rectifying and filtering.
Alternatively, fig. 5 shows a schematic structural diagram of another power control device. In the embodiment of the present application, as shown in fig. 5, the switching unit 22 includes a relay, but the switching unit 22 may also include other devices, which is not limited in this application.
The relay is electrically connected to the control unit 21 (for example, the fourth contact point c4 of the relay is electrically connected to the control unit 21), the relay includes a first contact point c1, a second contact point c2 and a third contact point c3, the first contact point c1 is electrically connected to the input terminal Vin, the second contact point c2 is electrically connected to the ac-dc unit 23, and the third contact point c3 is electrically connected to the output terminal Vout.
The relay is used for conducting the first contact point c1 and the second contact point c2 under the control of the first control signal, so that in the first state, the alternating current input from the input end Vin is converted into the direct current under the action of the alternating current-to-direct current unit, and the direct current is output from the output end Vout.
The relay is further configured to conduct the first contact c1 and the third contact c3 under the control of the second control signal, so that the dc power inputted from the input terminal Vin can be directly outputted from the output terminal Vout in the second state.
Alternatively, in the embodiment of the present application, the relay is used to turn on the first contact point c1 and the second contact point c2 when there is no control signal.
Therefore, the alternating current can be preferentially used under the condition that the alternating current and the direct current are simultaneously input, and the direct current can be considered to be used if the alternating current does not exist, so that the stability and the reliability of the power supply can be improved.
Alternatively, fig. 6 shows a schematic structural diagram of another power control device. In the embodiment of the present application, as shown in fig. 6, the processing module 20 further includes a voltage stabilizing unit 24.
The voltage regulation unit 24 is connected between the third contact c3 and the output terminal Vout, and is also electrically connected to the ac-dc conversion unit 23.
And the voltage stabilizing unit 24 is configured to stabilize the direct current converted by the alternating current to direct current unit and transmit the stabilized direct current to the output terminal Vout when the power supply state is the first state, and is further configured to stabilize the non-alternating current input from the third contact and transmit the non-alternating current to the output terminal Vout when the power supply state is the second state, so as to improve stability and reliability of the output power supply.
The voltage stabilizing unit can adopt various voltage stabilizing circuits in the prior art, as long as the voltage stabilizing unit can perform voltage boosting and reducing conversion, and the effect of stabilizing direct current is achieved.
On the basis, because certain delay parallel work exists in the process of detecting different power supply states for switching, reverse current may be generated at the time to influence input, and therefore, a soft delay protection circuit or a capacitor can be added into the power supply control device. The specific connection mode of the circuit can be set according to the requirement, and the application is not particularly limited in this respect.
It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the power supply control device. In other embodiments of the present application, the power control apparatus may include more or fewer modules than shown, or combine certain modules, or split certain modules, or different modules. The illustrated modules may be implemented in hardware, software, or a combination of software and hardware.
The embodiment of the application also provides communication-in-motion equipment which comprises the power supply control device.
The beneficial effects of the mobile communication device are the same as those of the power control device, and are not described herein again.
The structure of the power control device is described above with reference to fig. 2 to 6, and the power control method of the mobile communication device is described below with reference to fig. 7.
Fig. 7 shows a flow chart of a power control method of a mobile communication device. As shown in fig. 7, an embodiment of the present application provides a power control method 100 for a mobile communication device, including the following steps S110 to S130, specifically as follows:
s110, with reference to fig. 2, the detecting module 10 detects a power supply state of the input terminal Vin.
Wherein the power supply state comprises a first state and a second state. The first state is that the input at the input terminal Vin comprises alternating current, and the second state is that the input at the input terminal Vin is non-alternating current.
S120, with reference to fig. 2, when the detecting module 10 detects that the power supply state of the input terminal Vin is the first state, the processing module 20 converts the ac power into the dc power and transmits the dc power to the output terminal Vout.
S130, with reference to fig. 2, when the detecting module 10 detects that the power supply state of the input terminal Vin is the second state, the processing module 20 transmits the non-alternating current power to the output terminal Vout.
It is understood that a first state comprising at least alternating current means alternating current only, or both alternating current and direct current, and a second state not alternating current means direct current only, or no current.
When the input of the input end Vin is only alternating current, the power supply state is a first state; when the input of the input terminal Vin includes both ac and dc, the power supply state is also the first state; when the input of the input end Vin is only direct current, the power supply state is a second state; when the input terminal Vin has no input, it is also considered as the second state.
Based on this, when the detection module 10 detects that the power supply state of the input end Vin is the first state, if the input of the input end Vin is only ac, the processing module 20 may convert the ac into dc and output the dc from the output end Vout; if the input at the input terminal Vin includes both ac and dc, the processing module 20 preferably uses ac to convert only ac to dc and output from the output terminal Vout.
When the detection module 10 detects that the power supply state of the input terminal Vin is the second state, if the input of the input terminal Vin is only direct current, the processing module 20 turns on the input terminal Vin and the output terminal Vout, so that the direct current can be directly output from the output terminal Vout; if the input terminal Vin has no input, that is, neither ac nor dc is input, the processing module 20 turns on the input terminal Vin and the output terminal Vout without any influence on the circuit.
Because the power supply control device can automatically process according to different input conditions without manual judgment and intervention, a user does not worry about the problem of equipment damage caused by wrong power supply connection or improper switching, and the stability and reliability of the power supply can be ensured during subsequent use.
The embodiment of the application provides a power control method of a communication-in-moving device, which detects the power supply state of an input end through a detection module, and then a processing module automatically carries out different processing according to different power supply states. For example, when the power supply state is a first state at least comprising alternating current, the alternating current is converted into direct current, and when the power supply state is a second state not comprising the alternating current, the non-alternating current is transmitted to the output end, so that for various inputs, the embodiment of the application can ensure that the output is unified into the direct current, and a safe power supply mode can be provided for the communication-in-motion equipment.
Optionally, with reference to fig. 3, the detection module 10 is a current transformer, and the current transformer includes: in the case of a first inductor L1 having a first terminal a and a second terminal b, where the first terminal a is electrically connected to the ground GND and the second terminal b is electrically connected to the processing module 10, the method S100 includes:
the current transformer detects the power supply state of the input terminal Vin.
If the current transformer detects that the power supply state of the input terminal Vin is the first state, a first detection signal (for example, a high level) is provided to the processing module 20 through the second terminal b, so that the processing module 20 converts the ac power into the dc power and transmits the dc power to the output terminal Vout after receiving the first detection signal.
If the current transformer detects that the power supply state of the input terminal Vin is the second state, a second detection signal (for example, a low level) is provided to the processing module 20 through the second terminal b, so that the processing module 20 transmits the non-alternating current power to the output terminal Vout after receiving the second detection signal.
Optionally, in conjunction with fig. 4, the processing module 20 includes: when the control unit 21, the switching unit 22 and the alternating current-to-direct current unit 23 are used, the control unit is electrically connected with the second end b of the current transformer and the switching unit 22 respectively; the switching unit 22 is electrically connected to the input terminal Vin, the output terminal Vout, and the ac-to-dc unit 23, and in the case that the ac-to-dc unit is also electrically connected to the output terminal Vout, the method S120 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the first state and provides a first detection signal (for example, a high level) to the control unit 21 through the second terminal b, after receiving the first detection signal, the control unit 21 provides a first control signal (for example, a signal a) to the switching unit 22, and the switching unit 22 conducts the input terminal Vin and the ac-to-dc unit 23 under the control of the first control signal a, so that the ac-to-dc unit 23 converts the ac power input by the input terminal Vin into dc power and transmits the dc power to the output terminal Vout for output.
The method S130 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the second state and provides a second detection signal (for example, a low level) to the control unit 21 through the second terminal b, and the control unit 21 provides a second control signal (for example, a signal b) to the switching unit 22 after receiving the second detection signal, the switching unit 22 conducts the input terminal Vin and the output terminal Vout under the control of the second control signal b, so that the dc power input by the input terminal Vin is output from the output terminal Vout.
Alternatively, referring to fig. 5, in a case where the switching unit 22 includes a relay, the relay is electrically connected to the control unit 21, the relay includes a first contact point c1, a second contact point c2 and a third contact point c3, the first contact point c1 is electrically connected to the input terminal Vin, the second contact point c2 is electrically connected to the ac-to-dc unit 23, and the third contact point c3 is electrically connected to the output terminal Vout, the method S120 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the first state and provides a first detection signal (for example, a high level) to the control unit 21 through the second terminal b, after the control unit 21 receives the first detection signal, the control unit provides a first control signal (for example, a signal a) to the switching unit 22, and the relay conducts the first contact point c1 and the second contact point c2 under the control of the first control signal a, so as to conduct the input terminal Vin and the ac-to-dc unit 23, so that the ac-to-dc unit 23 converts the ac power input by the input terminal Vin into dc power and then outputs the dc power from the output terminal Vout.
The method S130 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the second state and provides a second detection signal (for example, a low level) to the control unit 21 through the second terminal b, and the control unit 21 provides a second control signal (for example, a signal b) to the switching unit 22 after receiving the second detection signal, the relay conducts the first contact point c1 and the third contact point c3 under the control of the second control signal b, so as to conduct the input terminal Vin and the output terminal Vout, and therefore, the direct current input by the input terminal Vin is output from the output terminal Vout.
Optionally, in another embodiment, the relay also has the first contact point c1 and the second contact point c2 when there is no control signal. Therefore, under the condition that alternating current and direct current are input simultaneously, alternating current can be preferentially used, and direct current is considered to be used if no alternating current exists, so that the stability and reliability of the power supply are improved.
Optionally, in combination with fig. 6, in a case that the processing module 20 further includes a voltage stabilizing unit 24, the voltage stabilizing unit 24 is connected between the third contact c3 and the output terminal Vout, and the voltage stabilizing unit is further electrically connected to the ac-to-dc converting unit 23, the method S120 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the first state and provides a first detection signal (for example, a high level) to the control unit 21 through the second terminal b, after receiving the first detection signal, the control unit 21 provides a first control signal (for example, a signal a) to the switching unit 22, and then the relay conducts the first contact point c1 and the second contact point c2 under the control of the first control signal a, so as to conduct the input terminal Vin and the ac-to-dc unit 23, so that the ac-to-dc unit 23 converts the ac power input at the input terminal Vin into dc power, and then the dc power is stabilized by the voltage stabilizing unit, for example, the first dc power is adjusted to the second dc power, and then output from the output terminal Vout.
The method S130 includes:
if the current transformer detects that the power supply state of the input terminal Vin is the second state and provides a second detection signal (for example, a low level) to the control unit 21 through the second terminal b, after receiving the second detection signal, the control unit 21 provides a second control signal (for example, a signal b) to the switching unit 22, and then the relay conducts the first contact point c1 and the third contact point c3 under the control of the second control signal b, so as to conduct the input terminal Vin and the output terminal Vout, so that after the direct current input by the input terminal Vin is stabilized by the voltage stabilizing unit, for example, the third direct current is adjusted to the second direct current and then output from the output terminal Vout.
The first direct current and the third direct current are not equal to the second direct current.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (7)
1. A power supply control device is applied to a communication-in-motion device and comprises the following components: the device comprises a detection module and a processing module; the processing module is electrically connected with the input end, the output end and the detection module respectively;
the detection module is used for detecting a power supply state of the input end, wherein the power supply state is a first state at least comprising alternating current or a second state which is not alternating current;
the processing module is used for converting the alternating current into direct current and transmitting the direct current to the output end when the power supply state is the first state; and is further configured to transmit the non-alternating current to the output when the power supply state is a second state.
2. The power control device of claim 1, wherein the detection module is a current transformer, the current transformer comprising: a first inductor having a first end and a second end, the first end being electrically connected to a ground terminal, the second end being electrically connected to the processing module;
the current transformer is used for providing a first detection signal to the processing module through the second end when the power supply state is detected to be the first state, and the first detection signal is used for indicating that the power supply state is the first state;
the current transformer is further configured to provide a second detection signal to the processing module through the second end when the power supply state is detected to be the second state, where the second detection signal is used to indicate that the power supply state is the second state.
3. The power supply control device according to claim 2, wherein the current transformer further comprises: a first resistor connected in parallel to the first inductor.
4. The power control device according to claim 2 or 3, wherein the processing module comprises: the device comprises a control unit, a switching unit and an alternating current-direct current unit;
the control unit is electrically connected with the second end of the current transformer, the switching unit is respectively electrically connected with the input end, the output end, the control unit and the AC-DC converting unit, and the AC-DC converting unit is also electrically connected with the output end;
the control unit is used for providing a first control signal to the switching unit when receiving the first detection signal, or providing a second control signal to the switching unit when receiving the second detection signal;
the switching unit is used for switching on the input end and the alternating current to direct current unit under the control of the first control signal, transmitting alternating current input by the input end to the alternating current to direct current unit, and converting the alternating current into direct current by the alternating current to direct current unit and transmitting the direct current to the output end; or, the switching unit is configured to turn on the input terminal and the output terminal under the control of the second control signal, and transmit the non-alternating current input by the input terminal to the output terminal.
5. The power supply control device according to claim 4, wherein the switching unit includes a relay electrically connected to the control unit, the relay including a first contact point electrically connected to the input terminal, a second contact point electrically connected to the AC-to-DC unit, and a third contact point electrically connected to the output terminal;
the relay is used for conducting the first contact point and the second contact point under the control of the first control signal; and the first contact point and the third contact point are conducted under the control of the second control signal.
6. The power control device of claim 5, wherein the processing module further comprises a voltage regulator unit; the voltage stabilizing unit is connected between the third contact point and the output end and is also electrically connected with the alternating current-to-direct current unit;
the voltage stabilizing unit is used for stabilizing the direct current converted by the alternating current to direct current unit and transmitting the stabilized direct current to the output end when the power supply state is a first state; and the power supply circuit is also used for stabilizing the non-alternating current input from the third contact point and transmitting the stabilized non-alternating current to the output end when the power supply state is a second state.
7. A communication-in-motion device, characterized by comprising the power control apparatus of any one of claims 1 to 6.
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| CN202011183940.0A CN112398318A (en) | 2020-10-29 | 2020-10-29 | Power supply control device and communication-in-motion equipment |
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| CN202011183940.0A CN112398318A (en) | 2020-10-29 | 2020-10-29 | Power supply control device and communication-in-motion equipment |
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