CN220855497U - Security protection equipment control circuit and doorbell - Google Patents
Security protection equipment control circuit and doorbell Download PDFInfo
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- CN220855497U CN220855497U CN202322687122.XU CN202322687122U CN220855497U CN 220855497 U CN220855497 U CN 220855497U CN 202322687122 U CN202322687122 U CN 202322687122U CN 220855497 U CN220855497 U CN 220855497U
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Abstract
A control circuit of security equipment and doorbell belong to the technical field of electronic circuits, respond to the disconnection with the outdoor module through multiplexing circuit, stop outputting the first direct current based on disconnection of the connection signal, and output the high-level electrical signal based on disconnection of the connection signal; the outdoor module is used for outputting a connecting signal; the wireless communication circuit works in a sleep mode according to the high-level electric signal and stops outputting a switching signal so that the switching circuit cuts off the output of the second direct current; the main control circuit and the display circuit stop working according to the disconnection of the second direct current; therefore, when the indoor module and the outdoor module are disconnected, the wireless communication circuit works in the sleep mode, and the main control circuit and the display circuit stop working, so that electric energy is saved.
Description
Technical Field
The application belongs to the technical field of electronic circuits, and particularly relates to a control circuit of security equipment and a doorbell.
Background
The related security equipment control circuit comprises an indoor module and an outdoor module, wherein a wireless communication module, a main control module and a display module in the indoor module are powered by a power supply module, and when the indoor module and the outdoor module are disconnected, the wireless communication module, the main control module and the display module are still in a working state, so that unnecessary electric energy is consumed.
The related security device control circuit cannot save electric power when the indoor module and the outdoor module are disconnected.
Disclosure of utility model
The application aims to provide a security equipment control circuit and a doorbell, which aim to solve the problem that the related security equipment control circuit cannot save electric energy when an indoor module and an outdoor module are disconnected.
The embodiment of the application provides a security equipment control circuit, which comprises:
A multiplexing circuit configured to stop outputting a first direct current based on disconnection of a connection signal and output a high-level electrical signal based on disconnection of the connection signal in response to disconnection from an outdoor module; the outdoor module is used for outputting the connection signal;
A wireless communication circuit connected to the multiplexing circuit and configured to operate in a sleep mode according to the electric signal of a high level and stop outputting a switching signal;
A switching circuit connected to the wireless communication circuit and configured to disconnect the output of the second direct current according to the stop of the switching signal;
the main control circuit is connected with the switch circuit and is configured to stop working according to the disconnection of the second direct current;
And the display circuit is connected with the switch circuit and the main control circuit and is configured to stop working according to the disconnection of the second direct current.
In one embodiment, the security device control circuit further includes the outdoor module, the outdoor module including a sensing circuit and a control circuit;
The multiplexing circuit is further configured to output the first direct current and a low-level electric signal based on the connection signal in response to connection with the outdoor module;
The sensing circuit is connected with the multiplexing circuit and is configured to respond to the fact that a human body is not sensed, and output an induction signal based on the stopping of the first direct current;
The control circuit is connected with the sensing circuit and the wireless communication circuit and is configured to be connected with the first direct current and output a low-level control signal according to the stop of the induction signal;
The wireless communication circuit is further configured to operate in a sleep mode and stop outputting the switching signal according to the electric signal of a low level and the control signal of a low level;
The multiplexing circuit and the control circuit are connected with the same input end of the wireless communication circuit, and the low-level electric signal and the low-level control signal are connected to the same input end of the wireless communication circuit.
In one embodiment, the outdoor module further comprises a first power circuit;
The first power supply circuit is connected with the multiplexing circuit, the sensing circuit and the control circuit and is configured to convert the first direct current;
The sensing circuit is specifically configured to stop outputting an induction signal based on the converted first direct current in response to not sensing a human body;
the control circuit is specifically configured to switch in the converted first direct current, and output a low-level control signal according to the stop of the induction signal.
In one embodiment, the outdoor module further comprises an image circuit;
The sensing circuit is further configured to output the sensing signal based on the first direct current in response to sensing a human body;
The control circuit is further configured to output a control signal of a pulse waveform according to the sensing signal;
The wireless communication circuit is further configured to operate in an operation mode according to the electric signal of a low level and the control signal of a pulse waveform and output the switching signal;
the switching circuit is further configured to output the second direct current according to the switching signal;
The image circuit is connected with the switch circuit and the main control circuit and is configured to respond to the access of the second direct current, collect image information in a scene and convert the image information into an image signal;
The main control circuit is further configured to convert the image signal into a display signal according to the second direct current;
The display circuit is further configured to display according to the second direct current and the display signal.
In one embodiment, the outdoor module further comprises a second power circuit;
The second power supply circuit is connected with the switch circuit and the image circuit and is configured to convert the second direct current;
The image circuit is specifically configured to collect image information in a scene and convert the image information into an image signal in response to the converted access to the second direct current.
In one embodiment, the security device control circuit further includes the outdoor module;
The multiplexing circuit is further configured to stop outputting the first direct current based on the momentary disconnection of the connection signal, and to output the electrical signal of the falling edge transition based on the momentary disconnection of the connection signal; the outdoor module is used for outputting the connection signal;
The wireless communication circuit is further configured to work for a first preset time period according to the electric signal hopped at the falling edge and output the switching signal and the disconnection information of the first preset time period;
the switching circuit is further configured to output a second direct current of a first preset duration according to the switching signal of the first preset duration;
the main control circuit is further configured to display the disconnection information according to the second direct current control display circuit with the first preset duration.
In one embodiment, the security device control circuit further includes the outdoor module;
The multiplexing circuit is further configured to output a first direct current based on the momentary access of the connection signal and to output an electrical signal with rising edge transitions based on the momentary access of the connection signal; the outdoor module is used for outputting the connection signal;
the wireless communication circuit is further configured to work for a second preset time period according to the electric signal hopped at the rising edge and output the switching signal and the connection information of the second preset time period;
the switching circuit is further configured to output a second direct current of a second preset duration according to the switching signal of the second preset duration;
The main control circuit is further configured to display the connection information according to the second direct current control display circuit with a second preset duration.
In one embodiment, the outdoor module includes a pull-down circuit;
the pull-down circuit is configured to output the connection signal.
In one embodiment, the multiplexing circuit comprises a first field effect transistor, a second field effect transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and magnetic beads;
The grid electrode of the second field effect transistor, the first end of the fourth resistor, the first end of the fifth resistor and the first end of the sixth resistor are used as a connecting signal input end of the multiplexing circuit together so as to be connected with the connecting signal;
The source electrode of the second field effect tube and the second end of the fifth resistor are commonly connected with an input power supply, and the drain electrode of the second field effect tube is connected with the first end of the magnetic bead;
The second end of the magnetic bead is used as a first direct current output end of the multiplexing circuit so as to output the first direct current;
The second end of the fourth resistor is connected with the grid electrode of the first field effect transistor, the source electrode of the first field effect transistor is connected with the first end of the third resistor, and the drain electrode of the first field effect transistor is connected with the first end of the first resistor and the first end of the second resistor;
The second end of the second resistor is used as an electric signal output end of the multiplexing circuit and is connected with the wireless communication circuit so as to output the electric signal;
the second end of the third resistor and the second end of the sixth resistor are commonly grounded.
The embodiment of the utility model also provides a doorbell, which comprises the security equipment control circuit.
Compared with the prior art, the embodiment of the utility model has the beneficial effects that: since the multiplexing circuit stops outputting the first direct current based on the disconnection of the connection signal and outputs the high-level electric signal based on the disconnection of the connection signal in response to the disconnection from the outdoor module; the outdoor module is used for outputting a connecting signal; the wireless communication circuit works in a sleep mode according to the high-level electric signal and stops outputting a switching signal so that the switching circuit cuts off the output of the second direct current; the main control circuit and the display circuit stop working according to the disconnection of the second direct current; therefore, when the indoor module and the outdoor module are disconnected, the wireless communication circuit works in the sleep mode, and the main control circuit and the display circuit stop working, so that electric energy is saved.
Drawings
In order to more clearly illustrate the technical utility model in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it will be apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.
FIG. 1 is a schematic diagram of a control circuit of a security device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 5 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 6 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 7 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
FIG. 8 is a schematic diagram of another configuration of a security device control circuit according to an embodiment of the present application;
Fig. 9 is a schematic circuit diagram of a portion of an exemplary security device control circuit according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Fig. 1 shows a schematic structural diagram of a control circuit of security equipment according to a preferred embodiment of the present application, and for convenience of explanation, only the portions related to the present embodiment are shown, which are described in detail below:
the security device control circuit 22 includes a multiplexing circuit 11, a wireless communication circuit 12, a switching circuit 13, a main control circuit 14, and a display circuit 15.
A multiplexing circuit 11 configured to stop outputting the first direct current based on the disconnection of the connection signal and output the high-level electric signal based on the disconnection of the connection signal in response to the disconnection from the outdoor module; the outdoor module is used for outputting a connection signal.
A wireless communication circuit 12 connected to the multiplexing circuit 11 and configured to operate in a sleep mode according to a high-level electric signal and stop outputting a switching signal; the wireless communication circuit 12 may be a wireless fidelity (WIRELESS FIDELITY, WIFI) communication circuit.
A switching circuit 13 connected to the wireless communication circuit 12 and configured to disconnect the output of the second direct current in accordance with a stop of the switching signal; the switching circuit 13 may comprise one or more switching tubes.
The main control circuit 14 is connected to the switching circuit 13 and configured to stop the operation according to the disconnection of the second direct current.
And a display circuit 15 connected to the switch circuit 13 and the main control circuit 14 and configured to stop operation according to the disconnection of the second direct current.
As shown in fig. 2, the security device control circuit 22 further includes an outdoor module including a sensing circuit 21 and a control circuit 22.
The multiplexing circuit 11 is further configured to output a first direct current and a low-level electric signal based on the connection signal in response to connection with the outdoor module.
A sensing circuit 21 connected to the multiplexing circuit 11 and configured to output an induction signal based on the stop of the first direct current in response to the absence of sensing a human body; in particular, the sensing circuit 21 may be a passive infrared sensor (PASSIVE INFRARED, PIR) sensing circuit 21.
The control circuit 22 is connected to the sensor circuit 21 and the wireless communication circuit 12, and is configured to switch on the first direct current and output a low-level control signal in response to the stop of the sense signal.
The wireless communication circuit 12 is further configured to operate in a sleep mode and stop outputting the switching signal according to the low-level electrical signal and the low-level control signal.
The multiplexing circuit 11 and the control circuit 22 are connected to the same input terminal of the wireless communication circuit 12, and a low-level electric signal and a low-level control signal are connected to the same input terminal of the wireless communication circuit 12.
When the sensing circuit 21 does not sense a human body, the sensing circuit 21 stops outputting the sensing signal to enable the control circuit 22 to output a low-level control signal, the low-level electric signal and the low-level control signal are connected to the same input end of the wireless communication circuit 12, the wireless communication circuit 12 works in a sleep mode according to the low-level electric signal and the low-level control signal input by the input end and stops outputting the switching signal, so that the switching circuit 13 cuts off the output of the second direct current, and the main control circuit 14 and the display circuit 15 cut off the second direct current to stop working, and when the sensing circuit does not sense the human body, the wireless communication circuit 12 works in the sleep mode, the main control circuit 14 and the display circuit 15 stop working, and further electric energy is saved. Meanwhile, since the low-level electric signal and the low-level control signal are both low-level, the two signals of the low-level electric signal and the low-level control signal can be identified through one input end of the wireless communication circuit 12, so that the multiplexing circuit 11 and the control circuit 22 can be connected with the same input end of the wireless communication circuit 12, the low-level electric signal and the low-level control signal can be connected to the same input end of the wireless communication circuit 12, ports of the two wireless communication circuits 12 are not required to be configured, the two signals can be connected, and the port resources are saved.
As shown in fig. 3, the outdoor module further includes a first power supply circuit 23;
The first power supply circuit 23 is connected to the multiplexing circuit 11, the sensing circuit 21, and the control circuit 22, and is configured to convert the first direct current.
The sensing circuit 21 is specifically configured to stop outputting the sensing signal based on the converted first direct current in response to not sensing the human body.
The control circuit 22 is specifically configured to switch on the first direct current and output a control signal of a low level according to the stop of the sense signal.
The first direct current is converted by the first power supply circuit 23, adapting the requirements of the supply voltages of the sensing circuit 21 and the control circuit 22.
As shown in fig. 4, the outdoor module further includes an image circuit 24.
The sensing circuit 21 is further configured to output an induction signal based on the first direct current in response to sensing a human body;
The control circuit 22 is further configured to output a control signal of the pulse waveform in accordance with the sense signal.
The wireless communication circuit 12 is further configured to operate in an operation mode and output a switching signal according to the low-level electric signal and the control signal of the pulse waveform.
The switching circuit 13 is further configured to output a second direct current according to the switching signal.
The image circuit 24 is connected with the switch circuit 13 and the main control circuit 14, and is configured to respond to the access of the second direct current, collect image information in the scene and convert the image information into an image signal.
The main control circuit 14 is further configured to convert the image signal into a display signal according to the second direct current.
The display circuit 15 is further configured to display according to the second direct current and the display signal.
By way of example and not limitation, the master circuit 14 is further configured to convert the image signal into display information according to the second direct current and to transmit the image information to the wireless communication circuit 12 such that the wireless communication circuit 12 generates a wireless communication signal according to the display information and transmits the wireless communication signal from the wireless link to the host computer.
By the sensing circuit 21 outputting a sensing signal when sensing a human body; the control circuit 22 is further configured to output a control signal of the pulse waveform according to the sensing signal to cause the wireless communication circuit 12 to output a switching signal; the switching circuit 13 is further configured to operate the image circuit 24, the main control circuit 14, and the display circuit 15 according to the output of the switching signal; therefore, the display circuit 15 displays the image information in the scene when the human body is sensed, and the scene is monitored when the human body is sensed.
As shown in fig. 5, the outdoor module further includes a second power supply circuit 25.
The second power supply circuit 25 is connected to the switching circuit 13 and the image circuit 24, and is configured to convert the second direct current.
The image circuit 24 is specifically configured to acquire image information within the scene and convert the image information into an image signal in response to the converted second direct current power being turned on.
The second direct current is converted by the second power supply circuit 25, adapting the requirements of the supply voltage of the image circuit 24.
As shown in fig. 6, the security device control circuit 22 further includes an outdoor module.
The multiplexing circuit 11 is further configured to stop outputting the first direct current based on the momentary disconnection of the connection signal, and output the electrical signal of the falling edge transition based on the momentary disconnection of the connection signal; the outdoor module is used for outputting a connecting signal;
The wireless communication circuit 12 is further configured to operate for a first preset duration based on the electrical signal of the falling edge transition and output a switching signal and a disconnection information of the first preset duration.
The switching circuit 13 is further configured to output a second direct current of the first preset duration in accordance with the switching signal of the first preset duration.
The main control circuit 14 is further configured to display the disconnection information according to a second direct current control display circuit 15 of the first preset duration.
At the moment that the indoor module is pulled out of the outdoor module, the multiplexing circuit 11 outputs an electric signal of a falling edge jump so that the wireless communication circuit 12 outputs a switching signal and disconnection information of a first preset duration; the main control circuit 14 displays the disconnection information according to the second direct current control display circuit 15 of the first preset duration outputted by the switch circuit 13; thus, at the moment when the indoor module is pulled out of the outdoor module, the display circuit 15 displays the disconnection signal, so that the usability of the security equipment control circuit 22 is improved, and the functions of the product are enriched.
As shown in fig. 7, the security device control circuit 22 further includes an outdoor module.
The multiplexing circuit 11 is further configured to output a first direct current based on the momentary access of the connection signal, and to output an electrical signal with rising edge transitions based on the momentary access of the connection signal; the outdoor module is used for outputting a connection signal.
The wireless communication circuit 12 is further configured to operate for a second preset time period according to the electrical signal of the rising edge transition and output a switching signal and connection information for the second preset time period.
The switching circuit 13 is further configured to output a second direct current of a second preset duration in accordance with a switching signal of the second preset duration.
The main control circuit 14 is further configured to display the connection information according to a second direct current control display circuit 15 of a second preset duration.
At the moment that the indoor module is connected with the outdoor module, the multiplexing circuit 11 outputs an electric signal with a rising edge jump so that the wireless communication circuit 12 outputs a switching signal and connection information with a second preset duration; the main control circuit 14 displays the connection signal according to a second direct current control display circuit 15 of a second preset duration output by the switch circuit 13; thus, at the moment that the indoor module is connected with the outdoor module, the display circuit 15 displays the connection information, so that the usability of the security equipment control circuit 22 is improved, and the functions of the product are enriched.
As shown in fig. 8, the outdoor module includes a pull-down circuit 26; the pull-down circuit 26 is configured to output a connection signal.
Fig. 9 shows an example circuit structure of a current generating circuit in the security device control circuit 22 according to the embodiment of the present utility model, and for convenience of explanation, only the portion relevant to the embodiment of the present utility model is shown, which is described in detail below:
The pull-down circuit 26 includes a pull-down resistor Rs, a first terminal of which is connected to the multiplexing circuit 11 as a connection signal output terminal of the pull-down circuit 26 to output a connection signal; the second terminal of pull-down resistor Rs is connected to power ground.
The multiplexing circuit 11 includes a first fet Q1, a second fet Q2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, and a magnetic bead B1.
The grid electrode of the second field effect transistor Q2, the first end of the fourth resistor R4, the first end of the fifth resistor R5 and the first end of the sixth resistor R6 are used as the connecting signal input end of the multiplexing circuit 11 together so as to be connected with a connecting signal; the source electrode of the second field effect tube Q2 and the second end of the fifth resistor R5 are commonly connected with the input power supply VIN, and the drain electrode of the second field effect tube Q2 is connected with the first end of the magnetic bead B1; the second end of the magnetic bead B1 is used as a first direct current output end of the multiplexing circuit 11 so as to output a first direct current; the second end of the fourth resistor R4 is connected with the grid electrode of the first field effect tube Q1, the source electrode of the first field effect tube Q1 is connected with the first end of the third resistor R3, and the drain electrode of the first field effect tube Q1 is connected with the first end of the first resistor R1 and the first end of the second resistor R2; a second end of the second resistor R2 is used as an electric signal output end of the multiplexing circuit 11 and is connected with the wireless communication circuit 12 to output an electric signal; the second end of the third resistor R3 and the second end of the sixth resistor R6 are commonly grounded.
The multiplexing circuit 11 further includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4; the first capacitor C1 is connected in parallel with the first resistor R1, the second capacitor C2 is connected between the grid electrode of the second field effect transistor Q2 and the source electrode of the second field effect transistor Q2, the third capacitor C3 is connected between the grid electrode of the second field effect transistor Q2 and the drain electrode of the second field effect transistor Q2, and the first end of the fourth capacitor C4 and the second end of the magnetic bead B1 are used as a first direct current output end of the multiplexing circuit 11 together so as to output first direct current; the second terminal of the fourth capacitor C4 is connected.
By multiplexing the fifth resistor R5 and the sixth resistor R6, the generation of the electric signal is realized while the first direct current transmission control is realized, and the circuit design is simplified.
The wireless communication circuit 12 includes a WIFI chip U1.
The first general purpose input/output terminal GPIO4 of the WIFI chip U1 is used as an electrical signal input terminal of the wireless communication circuit 12 and a control signal input terminal of the wireless communication circuit 12, and is connected with the multiplexing circuit 11 and the control circuit 22 to access electrical signals and control signals; the second general purpose input/output terminal GPIO2 of the WIFI chip U1 is used as a switch signal input terminal of the wireless communication circuit 12, and is connected with the switch circuit 13 to output a switch signal; the first SDIO data terminal SD 1D 0 of the WIFI chip U1, the second SDIO data terminal SD 1D 1 of the WIFI chip U1, the third SDIO data terminal SD 1D 2 of the WIFI chip U1, the fourth SDIO data terminal SD 1D 3 of the WIFI chip U1, the third SDIO clock terminal SD1 CLK of the WIFI chip U1, and the fourth SDIO command terminal SD1 CMD of the WIFI chip U1 are used together as a connection information output terminal of the wireless communication circuit 12 and a disconnection information output terminal of the wireless communication circuit 12, and are connected with the main control circuit 14 to output connection information and disconnection information.
The wireless communication circuit 12 is simple in structure and reliable in performance.
The main control circuit 14 includes a first microprocessor U2;
The first general purpose input/output terminal GPIO22 of the first microprocessor U2, the second general purpose input/output terminal GPIO21 of the first microprocessor U2, the third general purpose input/output terminal GPIO20 of the first microprocessor U2, the fourth general purpose input/output terminal GPIO19 of the first microprocessor U2, the fifth general purpose input/output terminal GPIO18 of the first microprocessor U2, and the sixth general purpose input/output terminal GPIO17 of the first microprocessor U2 are used together as a connection information input terminal of the main control circuit 14 and a disconnection information input terminal of the main control circuit 14, and are connected with the wireless communication circuit 12 to access connection information and disconnection information.
The first positive mobile industry processor interface (Mobile Industry Processor Interface, MIPI) data terminal mipi_d0p of the first microprocessor U2, the first negative MIPI data terminal mipi_d0n of the first microprocessor U2, the second positive MIPI data terminal mipi_d1p of the first microprocessor U2, the second negative MIPI data terminal mipi_d1n of the first microprocessor U2, the third positive MIPI data terminal mipi_d2p of the first microprocessor U2, the third negative MIPI data terminal mipi_d2n of the first microprocessor U2, the second positive MIPI clock terminal mipi_ckp of the first microprocessor U2, and the negative MIPI clock terminal mipi_ckn of the first microprocessor U2 are all used as the image signal input terminal of the master control circuit 14, and are connected to the image circuit 24 to access the image signal.
The control circuit 22 includes a second microprocessor U3.
The first general input/output terminal P13 of the second microprocessor U3 is used as a control signal output terminal of the control circuit 22, and is connected with the wireless communication circuit 12 to output a control signal; the first interrupt terminal INTP0 of the second microprocessor U3 is used as a sensing signal input terminal of the control circuit 22, and is connected to the sensing circuit 21 to access the sensing signal.
The following further describes the operation of fig. 9 in conjunction with the principle of operation:
When the indoor module and the outdoor module are disconnected, the pull-down resistor Rs is disconnected with the multiplexing circuit 11, the base electrode of the second field effect transistor Q2 is at a high level, the second field effect transistor Q2 is cut off, the multiplexing circuit 11 stops outputting the first direct current, the base electrode of the first field effect transistor Q1 is at a high level, the first field effect transistor Q1 is cut off, and the drain electrode of the first field effect transistor Q1 outputs an electric signal at a high level to the first general purpose input/output end GPIO4 of the WIFI chip U1; the WIFI chip U1 works in a sleep mode according to the high-level electric signal and stops outputting a switching signal; the switching circuit 13 turns off the output of the second direct current according to the stop of the switching signal; the first microprocessor U2 stops working according to the disconnection of the second direct current; and a display circuit 15 connected to the switch circuit 13 and the main control circuit 14 and configured to stop operation according to the disconnection of the second direct current.
When the outdoor module is connected with the indoor module, the pull-down resistor Rs is connected with the multiplexing circuit 11, the base electrode of the second field effect transistor Q2 is at a low level, the second field effect transistor Q2 is turned on, the multiplexing circuit 11 outputs a first direct current, the base electrode of the first field effect transistor Q1 is at a low level, the first field effect transistor Q1 is turned on, and the drain electrode of the first field effect transistor Q1 outputs a low-level electric signal to the first general purpose input/output end GPIO4 of the WIFI chip U1.
The sensing circuit 21 stops outputting the sensing signal to the first interrupt terminal INTP0 of the second microprocessor U3 based on the first direct current in response to not sensing the human body; the second microprocessor U3 outputs a low-level control signal according to the stop of the sensing signal; the control signal with low level and the electric signal with low level are both connected to a first general purpose input/output end GPIO4 of the WIFI chip U1; at the moment, the WIFI chip U1 works in a sleep mode according to the low-level electric signal and the low-level control signal and stops outputting the switching signal; the switching circuit 13 thus turns off the output of the second direct current, so that the main control circuit 14 and the display circuit 15 turn off the second direct current to stop the operation.
The sensing circuit 21 outputs an induction signal to the first interrupt terminal INTP0 of the second microprocessor U3 based on the first direct current in response to sensing the human body; the second microprocessor U3 outputs a control signal of a pulse waveform according to the induction signal; the control signal of the pulse waveform and the low-level electric signal are both connected to a first general purpose input/output end GPIO4 of the WIFI chip U1; the WIFI chip U1 works in a working mode according to the low-level electric signal and the control signal of the pulse waveform and outputs a switching signal; the switching circuit 13 outputs a second direct current according to the switching signal; the image circuit 24 is responsive to the access of the second direct current, acquires image information in the scene and converts the image information into an image signal, and inputs the image signal to the first positive electrode MIPI data end mipi_d0p of the first microprocessor U2, the first negative electrode MIPI data end mipi_d0n of the first microprocessor U2, the second positive electrode MIPI data end mipi_d1p of the first microprocessor U2, the second negative electrode MIPI data end mipi_d1n of the first microprocessor U2, the third positive electrode MIPI data end mipi_d2p of the first microprocessor U2, the third negative electrode MIPI data end mipi_d2n of the first microprocessor U2, the second positive electrode MIPI clock end mipi_ckp of the first microprocessor U2, and the negative electrode MIPI clock end mipi_ckn of the first microprocessor U2; the first microprocessor U2 converts the image signal into a display signal according to the second direct current; the display circuit 15 is further configured to display according to the second direct current and the display signal.
The embodiment of the utility model also provides a doorbell, and the amplifier comprises the security equipment control circuit.
In the embodiment of the utility model, the multiplexing circuit responds to the disconnection of the outdoor module, stops outputting the first direct current based on the disconnection of the connection signal, and outputs the high-level electric signal based on the disconnection of the connection signal; the outdoor module is used for outputting a connecting signal; the wireless communication circuit works in a sleep mode according to the high-level electric signal and stops outputting a switching signal so that the switching circuit cuts off the output of the second direct current; the main control circuit and the display circuit stop working according to the disconnection of the second direct current; therefore, when the indoor module and the outdoor module are disconnected, the wireless communication circuit works in the sleep mode, and the main control circuit and the display circuit stop working, so that electric energy is saved.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The security equipment control circuit is characterized by comprising an indoor module; the indoor module includes:
A multiplexing circuit configured to stop outputting a first direct current based on disconnection of a connection signal and output a high-level electrical signal based on disconnection of the connection signal in response to disconnection from an outdoor module; the outdoor module is used for outputting the connection signal;
A wireless communication circuit connected to the multiplexing circuit and configured to operate in a sleep mode according to the electric signal of a high level and stop outputting a switching signal;
A switching circuit connected to the wireless communication circuit and configured to disconnect the output of the second direct current according to the stop of the switching signal;
the main control circuit is connected with the switch circuit and is configured to stop working according to the disconnection of the second direct current;
And the display circuit is connected with the switch circuit and the main control circuit and is configured to stop working according to the disconnection of the second direct current.
2. The security device control circuit of claim 1, further comprising the outdoor module comprising a sensing circuit and a control circuit;
The multiplexing circuit is further configured to output the first direct current and a low-level electric signal based on the connection signal in response to connection with the outdoor module;
The sensing circuit is connected with the multiplexing circuit and is configured to respond to the fact that a human body is not sensed, and output an induction signal based on the stopping of the first direct current;
The control circuit is connected with the sensing circuit and the wireless communication circuit and is configured to be connected with the first direct current and output a low-level control signal according to the stop of the induction signal;
The wireless communication circuit is further configured to operate in a sleep mode and stop outputting the switching signal according to the electric signal of a low level and the control signal of a low level;
The multiplexing circuit and the control circuit are connected with the same input end of the wireless communication circuit, and the low-level electric signal and the low-level control signal are connected to the same input end of the wireless communication circuit.
3. The security device control circuit of claim 2, wherein the outdoor module further comprises a first power circuit;
The first power supply circuit is connected with the multiplexing circuit, the sensing circuit and the control circuit and is configured to convert the first direct current;
The sensing circuit is specifically configured to stop outputting an induction signal based on the converted first direct current in response to not sensing a human body;
the control circuit is specifically configured to switch in the converted first direct current, and output a low-level control signal according to the stop of the induction signal.
4. The security device control circuit of claim 2, wherein the outdoor module further comprises an image circuit;
The sensing circuit is further configured to output the sensing signal based on the first direct current in response to sensing a human body;
The control circuit is further configured to output a control signal of a pulse waveform according to the sensing signal;
The wireless communication circuit is further configured to operate in an operation mode according to the electric signal of a low level and the control signal of a pulse waveform and output the switching signal;
the switching circuit is further configured to output the second direct current according to the switching signal;
The image circuit is connected with the switch circuit and the main control circuit and is configured to respond to the access of the second direct current, collect image information in a scene and convert the image information into an image signal;
The main control circuit is further configured to convert the image signal into a display signal according to the second direct current;
The display circuit is further configured to display according to the second direct current and the display signal.
5. The security device control circuit of claim 4, wherein the outdoor module further comprises a second power circuit;
The second power supply circuit is connected with the switch circuit and the image circuit and is configured to convert the second direct current;
The image circuit is specifically configured to collect image information in a scene and convert the image information into an image signal in response to the converted access to the second direct current.
6. The security device control circuit of claim 1, wherein the security device control circuit further comprises the outdoor module;
The multiplexing circuit is further configured to stop outputting the first direct current based on the momentary disconnection of the connection signal, and to output the electrical signal of the falling edge transition based on the momentary disconnection of the connection signal; the outdoor module is used for outputting the connection signal;
The wireless communication circuit is further configured to work for a first preset time period according to the electric signal hopped at the falling edge and output the switching signal and the disconnection information of the first preset time period;
the switching circuit is further configured to output a second direct current of a first preset duration according to the switching signal of the first preset duration;
the main control circuit is further configured to display the disconnection information according to the second direct current control display circuit with the first preset duration.
7. The security device control circuit of claim 1, wherein the security device control circuit further comprises the outdoor module;
The multiplexing circuit is further configured to output a first direct current based on the momentary access of the connection signal and to output an electrical signal with rising edge transitions based on the momentary access of the connection signal; the outdoor module is used for outputting the connection signal;
the wireless communication circuit is further configured to work for a second preset time period according to the electric signal hopped at the rising edge and output the switching signal and the connection information of the second preset time period;
the switching circuit is further configured to output a second direct current of a second preset duration according to the switching signal of the second preset duration;
The main control circuit is further configured to display the connection information according to the second direct current control display circuit with a second preset duration.
8. The security device control circuit of claim 1, wherein the outdoor module comprises a pull-down circuit;
the pull-down circuit is configured to output the connection signal.
9. The security device control circuit of claim 1, wherein the multiplexing circuit comprises a first field effect transistor, a second field effect transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, and magnetic beads;
The grid electrode of the second field effect transistor, the first end of the fourth resistor, the first end of the fifth resistor and the first end of the sixth resistor are used as a connecting signal input end of the multiplexing circuit together so as to be connected with the connecting signal;
The source electrode of the second field effect tube and the second end of the fifth resistor are commonly connected with an input power supply, and the drain electrode of the second field effect tube is connected with the first end of the magnetic bead;
The second end of the magnetic bead is used as a first direct current output end of the multiplexing circuit so as to output the first direct current;
The second end of the fourth resistor is connected with the grid electrode of the first field effect transistor, the source electrode of the first field effect transistor is connected with the first end of the third resistor, and the drain electrode of the first field effect transistor is connected with the first end of the first resistor and the first end of the second resistor;
The second end of the second resistor is used as an electric signal output end of the multiplexing circuit and is connected with the wireless communication circuit so as to output the electric signal;
the second end of the third resistor and the second end of the sixth resistor are commonly grounded.
10. A doorbell, characterized in that it comprises a security device control circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687122.XU CN220855497U (en) | 2023-09-28 | 2023-09-28 | Security protection equipment control circuit and doorbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687122.XU CN220855497U (en) | 2023-09-28 | 2023-09-28 | Security protection equipment control circuit and doorbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220855497U true CN220855497U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322687122.XU Active CN220855497U (en) | 2023-09-28 | 2023-09-28 | Security protection equipment control circuit and doorbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220855497U (en) |
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2023
- 2023-09-28 CN CN202322687122.XU patent/CN220855497U/en active Active
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