Key multiplexing circuit of wireless power modem and electronic equipment

Abstract

The utility model relates to the technical field of wireless power modems, in particular to a key multiplexing circuit of a wireless power modem and electronic equipment. Comprising a key multiplexing module, a main control module and a pairing module, the key multiplexing module comprises a key switch and is used for generating a level trigger signal corresponding to the duration according to the key trigger duration; the level identification end of the main control module is connected with one end of the key multiplexing module and is used for judging whether the duration of the level trigger signal is in a first preset duration interval, and if the duration is in the first preset duration interval, a factory setting restoring function is triggered; and a level identification end of the pairing module is connected with the other end of the key multiplexing module and is used for judging whether the duration is in a second preset duration interval, and if the duration is in the second preset duration interval, a PLC pairing function is triggered. According to the application, the key reuse of the wireless power modem equipment is realized, so that the beneficial effect of solving the problem that the key is easy to touch by mistake or the problem of additional key cost is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of wireless power cats, and in particular to a key multiplexing circuit and electronic equipment for a wireless power cat. Background Art

[0002] A wireless power modem is a network extension device that combines wireless power transmission and Wi-Fi capabilities. It's used to transmit data signals over power lines, thereby extending network coverage in a home or office. A wireless power modem consists of a PLC (Powerline Communication) modem chip, a Wi-Fi chip, and a main control CPU. The PLC modem operates independently and exchanges management and data status information with the main control CPU via communication protocols such as MME (Mobility Management Entity). During this process, the PLC modem includes a pairing function for initiating pairing between parent and child PLC modems; the main control CPU also includes a function for initiating a factory reset.

[0003] Currently, the powerline modems on the market mainly use an independent button design, where the PLC chip provides the first button for pairing, and the main CPU provides the second button for restoring the factory defaults. However, in actual use, the independent button design may have the following problems:

[0004] 1. The button is easily touched by mistake, causing the factory reset function to be activated by mistake. To address this problem, the existing technology hides the factory reset button. Although this improvement can prevent accidental keystrokes, it requires a special tool (such as a paperclip) to reach in and trigger it, which brings certain inconvenience to the factory reset function.

[0005] 2. At least two button positions need to be provided, which affects the simplicity and beauty of the panel and generates additional cost expenditure.

[0006] Implementing button reuse in wireless power cat devices can solve the above-mentioned problems caused by independent button design. Based on this, how to implement button reuse in wireless power cat devices is a technical problem that needs to be solved urgently. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the present application provides a key multiplexing circuit and electronic device for a wireless power cat to realize key multiplexing of the wireless power cat device, thereby achieving the beneficial effect of solving the problem of easy accidental key touches or the problem of additional key costs.

[0008] The technical solution adopted by this application to solve its technical problems is:

[0009] A first aspect of the present application provides a key multiplexing circuit for a wireless power cat, comprising a key multiplexing module, a main control module, and a pairing module;

[0010] The key multiplexing module includes a key switch for generating a level trigger signal of corresponding duration according to the key triggering duration;

[0011] The level recognition end of the main control module is connected to one end of the key multiplexing module, and is used to determine whether the duration of the level trigger signal is within a first preset duration interval, and if the duration is within the first preset duration interval, triggering the factory reset function;

[0012] The level recognition end of the pairing module is connected to the other end of the key multiplexing module, and is used to determine whether the duration is within a second preset duration interval. If the duration is within the second preset duration interval, the PLC pairing function is triggered, and the second preset duration interval does not overlap with the first preset duration interval.

[0013] Optionally, an indicator light module is also included;

[0014] The first identification end of the indicator light module is connected to the first indicator light triggering end of the main control module, and is used to adjust the indicator light state of the first indicator light in the indicator light module according to the level signal of the first indicator light triggering end;

[0015] The second identification end of the indicator light module is connected to the second indicator light trigger end of the pairing module, and is used to adjust the indicator light state of the second indicator light in the indicator light module according to the level signal of the second indicator light trigger end.

[0016] Optionally, the key multiplexing module includes a key switch, a first resistor, a second resistor and a first signal source;

[0017] One end of the key switch is grounded, and the other end is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor, and the other end of the second resistor is connected to the first signal source;

[0018] The connection point between the first resistor and the second resistor is connected to the level recognition terminal of the main control module and the level recognition terminal of the pairing module.

[0019] Optionally, the key multiplexing module further includes a first capacitor and a voltage regulator tube;

[0020] One end of the first capacitor is connected to the connection point between the key switch and the first resistor, and the other end is grounded;

[0021] One end of the voltage regulator is connected to the connection point between the key switch and the first resistor, and the other end is grounded.

[0022] Optionally, the main control module includes a main control CPU, a third resistor and a second capacitor;

[0023] The level recognition terminal of the main control CPU is connected to one end of the third resistor and one end of the second capacitor, and the other end of the third resistor is connected to the connection point of the first resistor and the second resistor;

[0024] The other end of the second capacitor is grounded.

[0025] Optionally, the indicator light module includes a first light-emitting diode, a fourth resistor, a fifth resistor, a sixth resistor and a third capacitor;

[0026] One end of the fourth resistor is connected to the first signal source, and the other end is connected to the positive electrode of the first light-emitting diode. The negative electrode of the first light-emitting diode is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the first indicator light triggering end of the main control CPU.

[0027] One end of the sixth resistor is connected to the connection point of the first light-emitting diode and the fourth resistor, and the other end is grounded;

[0028] One end of the third capacitor is connected to the connection point between the first indicator light triggering end and the fifth resistor, and the other end is grounded.

[0029] Optionally, the pairing module includes a PLC chip and a seventh resistor;

[0030] One end of the seventh resistor is connected to the connection point of the first resistor and the second resistor, and the other end is connected to the level recognition terminal of the PLC chip.

[0031] Optionally, the indicator light module further includes a second light-emitting diode, an eighth resistor and a fourth capacitor;

[0032] The positive electrode of the second light-emitting diode is connected to the connection point of the fourth resistor and the sixth resistor, the negative electrode is connected to one end of the eighth resistor, and the other end of the eighth resistor is connected to the second indicator light triggering end of the PLC chip;

[0033] One end of the fourth capacitor is connected to the connection point between the eighth resistor and the second indicator light triggering end, and the other end is grounded.

[0034] A second aspect of the present application provides an electronic device equipped with the key multiplexing circuit of the wireless power cat described above.

[0035] The beneficial effects of the present application are as follows: when the device is started, the level signals on the level recognition terminals of the main control module and the pairing module are initialized to a first level signal (assuming a low level). When the device is powered on, the first level signal can be set to a second level signal (assuming a high level) through the key switch in the key module. Applying external pressure to the key switch for a period of time generates a level trigger signal of a corresponding duration. The level trigger signal is recognized by the main control module and the pairing module, and it is determined whether the duration of the level trigger signal is within the first preset duration interval or the second preset duration interval. If so, the corresponding function is triggered. In other words, one key can be used to complete the control of two or more functions, thereby realizing key reuse of the wireless power cat device, thereby achieving the beneficial effect of solving the problem of easy accidental key touches or the cost of additional keys. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a module diagram of a key multiplexing circuit of a wireless power cat provided in an embodiment of the present application;

[0037] Figure 2 This is a circuit diagram of a key multiplexing module provided in an embodiment of the present application;

[0038] Figure 3 This is a circuit diagram of the main control module provided in an embodiment of the present application;

[0039] Figure 4 is a circuit schematic diagram of the pairing module provided in an embodiment of the present application;

[0040] Figure 5 This is a circuit diagram of the indicator light module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The present application is further described below with reference to the accompanying drawings and examples.

[0042] The following will clearly and completely describe the concept, specific structure and technical effects of this application in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features created in this application can be combined interactively without conflicting with each other.

[0043] Reference Figure 1 , Figure 1This is a module diagram of the key multiplexing circuit of the wireless power cat provided in an embodiment of the present application, including a key multiplexing module 1, a main control module 2, a pairing module 3 and an indicator light module 4. Each module is described in detail below:

[0044] Regarding the key multiplexing module 1: the key multiplexing module 1 includes a key switch K1, which is used to generate a level trigger signal of corresponding duration according to the key triggering duration.

[0045] Specifically, the key multiplexing module 1 includes a key switch K1 and at least two output ports, which are respectively connected to the level identification terminals M_PAIR of the main control module 2 and the pairing module 3. The main control module 2 and the pairing module 3 trigger corresponding functions according to the high and low level state changes obtained in their level time periods, and the high and low level state changes are triggered by relevant personnel through buttons.

[0046] More specifically, please refer to Figure 2 , Figure 2 This is a circuit diagram of the key multiplexing module 1 provided in the embodiment of the present application. Figure 2 The key multiplexing module 1 is described in detail:

[0047] The key multiplexing module 1 includes a key switch K1, a first resistor R45, a second resistor R66 and a first signal source;

[0048] One end of the key switch K1 is grounded, and the other end is connected to one end of the first resistor R45, the other end of the first resistor R45 is connected to one end of the second resistor R66, and the other end of the second resistor R66 is connected to the first signal source;

[0049] The connection point between the first resistor R45 and the second resistor R66 is connected to the level recognition terminal PB_RST of the main control module 2 and the level recognition terminal M_PAIR of the pairing module 3 .

[0050] Specifically, when key switch K1 is not pressed, the first signal source pulls the level signal output to the main control module 2 port (PB_RST) and the pairing module 3 port (M_PAIR) high. In this case, there is no level trigger signal. When key switch K1 is continuously pressed, because key switch K1 is grounded and conductive, the level signals at the PB_RST and M_PAIR ports are pulled low, generating a level trigger signal. In this case, main control module 2 and pairing module 3 will identify the duration of the level trigger signal to determine whether to trigger their module functions. For example, assuming the trigger duration for the pairing function is 1-3 seconds and the trigger duration for the master control function is 5 seconds or longer, if the key is pressed continuously for 1-3 seconds, a level trigger signal of the corresponding duration will be generated, triggering the pairing function. Similarly, if the key is pressed continuously for more than 5 seconds, the factory reset function will be triggered.

[0051] It is worth noting that the main control module 2 and the pairing module 3 start recording the low level time when the corresponding identification end changes from a high level to a low level, and complete the recording until the low level switches to a high level again, and perform time judgment after the recording is completed, so as to avoid accidentally triggering the pairing function when triggering factory restoration.

[0052] Furthermore, the key multiplexing module 1 further includes a first capacitor C66 and a voltage regulator diode D2;

[0053] One end of the first capacitor C66 is connected to the connection point between the key switch and the first resistor R45, and the other end is grounded;

[0054] One end of the voltage regulator D2 is connected to the connection point between the key switch and the first resistor R45, and the other end is grounded.

[0055] Regarding the main control module 2: the level recognition end PB_RST of the main control module 2 is connected to one end of the key multiplexing module 1, and is used to determine whether the duration of the level trigger signal is within the first preset duration interval. If the duration is within the first preset duration interval, the factory reset function is triggered.

[0056] Specifically, the main control module 2 includes a main control CPU. In the embodiment of the present application, the model of the main control CPU is MTK7621, which has the function of triggering the restoration of factory settings, but this function needs to be activated. The relevant personnel can set the trigger conditions through the corresponding software. In the embodiment of the present application, a first preset time interval can be set, that is, when the time the button is pressed reaches the first preset time interval, the factory restoration function is triggered.

[0057] More specifically, please refer to Figure 3 , Figure 3 This is a circuit diagram of the main control module 2 provided in the embodiment of the present application. Figure 3 The main control module 2 is described in detail:

[0058] The main control module 2 includes a main control CPU ( Figure 3 U5A in), a third resistor R80 and a second capacitor C76;

[0059] The level recognition terminal of the main control CPU is connected to one end of the third resistor R80 and one end of the second capacitor C76, and the other end of the third resistor R80 is connected to the connection point of the first resistor R45 and the second resistor R66;

[0060] The other end of the second capacitor C76 is grounded.

[0061] Specifically, the level recognition terminal of the main control CPU obtains the level state of the connection point between the first resistor R45 and the second resistor R66, thereby determining whether the key is pressed and the duration of the pressing, and then triggering the subsequent factory reset function.

[0062] Regarding the pairing module 3: the level recognition end M_PAIR of the pairing module 3 is connected to the other end of the key multiplexing module 1, and is used to determine whether the duration is in a second preset duration interval. If the duration is in the second preset duration interval, the PLC pairing function is triggered, and the second preset duration interval does not overlap with the first preset duration interval.

[0063] Please refer to Figure 4 , Figure 4 This is a circuit diagram of the pairing module provided in the embodiment of the present application. Figure 4 The pairing module 3 is described in detail:

[0064] The pairing module 3 includes a PLC chip U8A and a seventh resistor R62;

[0065] One end of the seventh resistor R62 is connected to the connection point of the first resistor R45 and the second resistor R66, and the other end is connected to the level recognition end of the PLC chip U8A.

[0066] Specifically, the pairing module 3 includes a PLC chip, whose pin GPIO_3 obtains the output of the button reset module 1. The model used in the embodiment of the present application is MSE1062, which has the function of pairing parent and child devices to establish a communication connection. In the present application, it is triggered by the time control of the button being pressed, which is similar to the above-mentioned factory reset function trigger. It is worth noting that there should be no overlap between the first preset time interval and the second preset time interval to avoid the device function being triggered by mistake. As much as possible, the first preset time interval and the second preset time interval should be separated as much as possible, and the difference should be at least one second, so as to improve the user experience of relevant personnel and reduce false triggering.

[0067] Regarding the indicator light module 4: the first identification end of the indicator light module 4 is connected to the first indicator light trigger end INTERNET_LED of the main control module 2, and is used to adjust the indicator light state of the first indicator light in the indicator light module 4 according to the level signal of the first indicator light trigger end INTERNET_LED;

[0068] The second identification end of the indicator light module 4 is connected to the second indicator light trigger end M_LED_B of the pairing module 3, and is used to adjust the indicator light state of the second indicator light in the indicator light module 4 according to the level signal of the second indicator light trigger end.

[0069] Specifically, refer to Figure 3 and Figure 5 , Figure 5 This is a circuit diagram of the indicator light module 4 provided in the embodiment of the present application. Figure 5 The flashing control of the first indicator light is described in detail:

[0070] The indicator light module 4 includes a first light-emitting diode LED1, a fourth resistor RL1A, a fifth resistor R49, a sixth resistor RL1B and a third capacitor C21;

[0071] One end of the fourth resistor RL1A is connected to the first signal source, and the other end is connected to the anode of the first light-emitting diode LED1. The cathode of the first light-emitting diode LED1 is connected to one end of the fifth resistor R49. The other end of the fifth resistor R49 is connected to the first indicator light trigger terminal M_LED_B of the main control CPU.

[0072] One end of the sixth resistor RL1B is connected to the connection point of the first light-emitting diode LED1 and the fourth resistor RL1A, and the other end is grounded;

[0073] One end of the third capacitor C21 is connected to the connection point between the first indicator light triggering end M_LED_B and the fifth resistor, and the other end is grounded.

[0074] Specifically, in this application, a light-emitting diode is used as an indicator light. When the level signal of the trigger end of the first indicator light is pulled low, a voltage difference is formed between the first signal source and the trigger end of the first indicator light, and the first indicator light is turned on. By periodically switching the level state of the first indicator light, the flashing of the first indicator light can be achieved. In an embodiment of the present application, when the factory reset function is triggered, the main control CPU periodically switches the high and low levels of the output through its first indicator light trigger end, and controls the flashing of the first indicator light when the function is triggered, so that relevant personnel can understand the function triggering situation.

[0075] More specifically, when the indicator light is not triggered, the power supply of the first signal source is output to the ground through the sixth resistor, thereby preventing the indicator light and other related devices from being damaged by a continuous high potential, and further improving the reliability of the circuit.

[0076] Please refer to Figure 4 and Figure 5 , combined with Figure 4 and Figure 5 The on / off flashing control of the second indicator light is described in detail:

[0077] The indicator light module 4 further includes a second light-emitting diode LED2, an eighth resistor R48 and a fourth capacitor C24;

[0078] The anode of the second light-emitting diode LED2 is connected to the connection point of the fourth resistor and the sixth resistor, and the cathode is connected to one end of the eighth resistor R48. The other end of the eighth resistor R48 is connected to the second indicator light triggering end of the PLC chip.

[0079] One end of the fourth capacitor C24 is connected to the connection point between the eighth resistor R48 and the trigger end of the second indicator light, and the other end is grounded.

[0080] Specifically, the level signal of the trigger end of the second indicator light is pulled low, a voltage difference is formed between the first signal source and the trigger end of the second indicator light, and the second indicator light lights up. By periodically switching the level state of the second indicator light, the flashing of the first indicator light can be achieved. Similar to the above-mentioned first indicator light, in the embodiment of the present application, when the pairing function is triggered, the high and low levels output by the PLC chip are periodically switched through its second indicator light trigger end.

[0081] A second aspect of the present application provides an electronic device equipped with the key multiplexing circuit of the wireless power cat described above.

[0082] The above is a specific description of the preferred implementation of the present application, but the invention of the present application is not limited to the described embodiments. Technical personnel familiar with the art can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A key multiplexing circuit for a wireless power cat, characterized by: Includes key multiplexing module, main control module and pairing module; The key multiplexing module includes a key switch for generating a level trigger signal of corresponding duration according to the key triggering duration; The level recognition end of the main control module is connected to one end of the key multiplexing module, and is used to determine whether the duration of the level trigger signal is within a first preset duration interval, and if the duration is within the first preset duration interval, triggering the factory reset function; The level recognition end of the pairing module is connected to the other end of the key multiplexing module, and is used to determine whether the duration is within a second preset duration interval. If the duration is within the second preset duration interval, the PLC pairing function is triggered, and the second preset duration interval does not overlap with the first preset duration interval.

2. The key multiplexing circuit of the wireless power cat according to claim 1, characterized in that: Also includes an indicator light module; The first identification end of the indicator light module is connected to the first indicator light triggering end of the main control module, and is used to adjust the indicator light state of the first indicator light in the indicator light module according to the level signal of the first indicator light triggering end; The second identification end of the indicator light module is connected to the second indicator light trigger end of the pairing module, and is used to adjust the indicator light state of the second indicator light in the indicator light module according to the level signal of the second indicator light trigger end.

3. The key multiplexing circuit of the wireless power cat according to claim 2, characterized in that: The key multiplexing module includes a key switch, a first resistor, a second resistor and a first signal source; One end of the key switch is grounded, and the other end is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor, and the other end of the second resistor is connected to the first signal source; The connection point between the first resistor and the second resistor is connected to the level recognition terminal of the main control module and the level recognition terminal of the pairing module.

4. The key multiplexing circuit of the wireless power cat according to claim 3, characterized in that: The key multiplexing module further includes a first capacitor and a voltage regulator tube; One end of the first capacitor is connected to the connection point between the key switch and the first resistor, and the other end is grounded; One end of the voltage regulator is connected to the connection point between the key switch and the first resistor, and the other end is grounded.

5. The key multiplexing circuit of the wireless power cat according to claim 3, characterized in that: The main control module includes a main control CPU, a third resistor and a second capacitor; The level recognition terminal of the main control CPU is connected to one end of the third resistor and one end of the second capacitor, and the other end of the third resistor is connected to the connection point of the first resistor and the second resistor; The other end of the second capacitor is grounded.

6. The key multiplexing circuit of the wireless power cat according to claim 5, characterized in that: The indicator light module includes a first light-emitting diode, a fourth resistor, a fifth resistor, a sixth resistor and a third capacitor; One end of the fourth resistor is connected to the first signal source, and the other end is connected to the positive electrode of the first light-emitting diode. The negative electrode of the first light-emitting diode is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the first indicator light triggering end of the main control CPU. One end of the sixth resistor is connected to the connection point of the first light-emitting diode and the fourth resistor, and the other end is grounded; One end of the third capacitor is connected to the connection point between the first indicator light triggering end and the fifth resistor, and the other end is grounded.

7. The key multiplexing circuit of the wireless power cat according to claim 6, characterized in that: The pairing module includes a PLC chip and a seventh resistor; One end of the seventh resistor is connected to the connection point of the first resistor and the second resistor, and the other end is connected to the level recognition terminal of the PLC chip.

8. The key multiplexing circuit of the wireless power cat according to claim 7, characterized in that: The indicator light module further includes a second light-emitting diode, an eighth resistor and a fourth capacitor; The positive electrode of the second light-emitting diode is connected to the connection point of the fourth resistor and the sixth resistor, the negative electrode is connected to one end of the eighth resistor, and the other end of the eighth resistor is connected to the second indicator light triggering end of the PLC chip; One end of the fourth capacitor is connected to the connection point between the eighth resistor and the second indicator light triggering end, and the other end is grounded.

9. An electronic device, characterized in that: A key multiplexing circuit equipped with a wireless power cat as claimed in any one of claims 1 to 8.

Images