A low-power wireless switch panel and usage method

Abstract

The present invention discloses a low-power wireless switch panel and a use method, which relate to the technical field of wireless switch panels. The switch panel comprises a switch panel body, on which a wireless communication module, a power control circuit, a power module, a relay control and protection module, an energy recovery circuit and a human-machine interaction control panel are provided; the energy recovery circuit comprises: an energy storage capacitor, an energy storage capacitor charging circuit, an energy storage capacitor discharging circuit, an energy storage capacitor charging and discharging control circuit, a power charging circuit, a relay action control and monitoring circuit, a micro-kinetic energy collection circuit, a user operation panel, a voltage gear switching circuit and a power supply; the power loss caused by frequent wireless radio frequency interaction is reduced by step-by-step networking, the circuit loss is effectively reduced by step-by-step setting of the power supply voltage, the power recovery circuit recovers the power from the relay operation, thereby extending the service life of the independent power supply of a single device, and at the same time, it can realize the monitoring of the status of the wireless switch panel and the reporting of abnormalities.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless switch panels, and in particular to a low-power wireless switch panel and a use method thereof. Background Art

[0002] Switch panels are ubiquitous in household life. Traditional switch panels mechanically connect power lines to turn the power of devices on and off. They cannot be remotely controlled, and users cannot know the power status of the controlled devices after operation. Therefore, smart control switch panels have emerged to meet the needs of remote control and linkage of smart home power switches.

[0003] Currently, the existing smart home wireless switch panels on the market have high power consumption due to frequent wireless radio frequency interactions when in use, and the wireless switch panels cannot recycle electricity when in use. When the wireless switch panels are powered by an independent power supply, power shortages are likely to occur.

[0004] Based on this, the present invention designs a low-power wireless switch panel and a method of use to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-power wireless switch panel and a method of use, which reduces the power loss caused by frequent wireless radio frequency interactions through step-by-step networking, effectively reduces loop losses through step-by-step setting of the power supply voltage, and recycles the power from the relay through an energy recovery circuit, thereby extending the service life of a single device's independent power supply. At the same time, it can realize the monitoring of the wireless switch panel status and the reporting of abnormalities, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a low-power wireless switch panel, comprising a switch panel body, on which a wireless communication module, a power control circuit, a power module, a relay control and protection module, an energy recovery circuit, and a human-computer interaction control panel are provided;

[0007] The energy recovery circuit includes: an energy storage capacitor, an energy storage capacitor charging circuit, an energy storage capacitor discharging circuit, an energy storage capacitor charging and discharging control circuit, a power supply charging circuit, a relay action control and monitoring circuit, a micro-kinetic energy collection circuit, a user operation panel, a voltage gear switching circuit and a power supply.

[0008] Preferably, the relay action control and monitoring circuit is electrically connected to the energy storage capacitor charging circuit, the energy storage capacitor discharging circuit and the energy storage capacitor charging and discharging control circuit. When the relay is controlled to open, the energy storage capacitor is charged through the energy storage capacitor charging circuit. When the controlled action of the relay is completed, the energy storage capacitor is discharged through the energy storage capacitor discharging circuit, so that the electric energy enters the power supply charging circuit.

[0009] Based on the above technical features, electric energy is recovered through the energy recovery circuit, and the relay operation only consumes switching action, effectively reducing the excitation loss of the relay coil.

[0010] Preferably, the wireless communication module is provided with a plurality of wireless interfaces;

[0011] And / or, the wireless communication module is awakened by a wireless instruction or user interaction operation;

[0012] And / or, the wireless communication module is provided with a periodic timer wake-up function.

[0013] Based on the above technical features, wireless docking is facilitated by providing a number of wireless interfaces on the wireless communication module.

[0014] Preferably, the power supply control circuit provides control switching of at least three gears of power supply voltage.

[0015] Based on the above technical features, the power supply of the wireless switch panel is guaranteed in different states.

[0016] Preferably, the power module includes a rechargeable battery interface, a button battery slot, a farad capacitor interface and an external power supply interface.

[0017] Based on the above technical features, a suitable power supply mode can be selected according to actual needs.

[0018] Preferably, the relay control and protection module adopts a magnetic latching relay or a solid-state relay, and is provided with a zero-crossing sampling circuit to ensure that the relay switching action is near zero point.

[0019] Based on the above technical features, the service life of the relay is guaranteed by controlling the switching action of the relay.

[0020] Preferably, the human-computer interaction control panel includes a human infrared pyroelectric sensor to achieve non-contact close-range early awakening of the wireless switch panel.

[0021] Based on the above technical features, the real-time performance of user interaction actions and low-power wireless interaction is guaranteed, improving the human-computer interaction experience.

[0022] A method for using a low-power wireless switch panel, based on any of the wireless switch panels described above, comprising:

[0023] S1, after the wireless switch panel is powered on or initialized for the first time, it enters the inquiry and broadcast mode to be discovered by the gateway and enters S2;

[0024] In S2, if the gateway cannot be found, it enters the ladder network access mode. After one month, the device is put into silent sleep mode. The device power control circuit reduces the voltage to 1.4V and needs to be manually awakened by the user to enter S5.

[0025] If the device is discovered by the gateway and successfully connected to the network, the device reports the power-on status and reduces the device operating voltage to 2.6V through the power control circuit. The wireless module enters semi-sleep mode and enters S3.

[0026] In step S3, the server sends a wake-up and control command. The device wakes up after receiving the wake-up command, raises the power supply voltage to 3.3V, and uses the relay control circuit of the relay control and protection module to complete the control command action and enter step S4.

[0027] S4: After the action or command operation is completed, the device reduces the power supply voltage to 2.6V and enters a semi-dormant state. If there is no action during this period, the device sends a heartbeat command to the gateway at least five times a day at 2.6V, and cooperates with the gateway to monitor the device status. If the power supply is less than 10%, it enters S6. If the power is completely exhausted, it enters S5.

[0028] S5: After the user operates the panel, if the device is completely out of power, each user operation will send a wireless power replacement reminder frame to the gateway through the micro-kinetic energy collection circuit. At this time, the device cannot be turned on and off normally. If the user operates the device to initialize, it enters S1;

[0029] S6: Report the low power message to the gateway at least 20 times a day to prompt charging or replacing the device power supply. After the device replaces the power supply, return to S2.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The power loss caused by frequent wireless RF interactions is reduced through step-by-step networking, the loop loss is effectively reduced through step-by-step setting of the power supply voltage, and the energy recovery circuit recycles the power from the relay, extending the service life of the independent power supply of a single device. At the same time, it can monitor the status of the wireless switch panel and report any abnormalities. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 Schematic diagram of the energy recovery circuit of the present invention;

[0034] Figure 2 This is a flow chart of the method for using the wireless switch panel of the present invention. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] See also Figure 1 , the present invention provides a technical solution: a low-power wireless switch panel, including a switch panel body, on which a wireless communication module, a power control circuit, a power module, a relay control and protection module, an energy recovery circuit and a human-computer interaction control panel are provided;

[0037] The energy recovery circuit includes: energy storage capacitor, energy storage capacitor charging circuit, energy storage capacitor discharging circuit, energy storage capacitor charging and discharging control circuit, power supply charging circuit, relay action control and monitoring circuit, micro-kinetic energy collection circuit, user operation panel, voltage gear switching circuit and power supply.

[0038] The power loss caused by frequent wireless RF interactions is reduced through step-by-step networking, the loop loss is effectively reduced through step-by-step setting of the power supply voltage, and the energy recovery circuit recycles the power from the relay, extending the service life of the independent power supply of a single device. At the same time, it can monitor the status of the wireless switch panel and report any abnormalities.

[0039] Among them, the relay action control and monitoring circuit is electrically connected to the energy storage capacitor charging circuit, the energy storage capacitor discharging circuit and the energy storage capacitor charging and discharging control circuit. When the relay is controlled to open, the energy storage capacitor is charged through the energy storage capacitor charging circuit. When the energy storage capacitor is full, the energy storage capacitor charging and discharging control circuit is turned on and the relay controlled action is completed. When the relay controlled action is completed, the energy storage capacitor charging circuit is immediately closed, and the energy storage capacitor is discharged through the energy storage capacitor discharging circuit, so that the electric energy enters the power charging circuit. This part of the electric energy is stored in the rechargeable battery or farad capacitor. In this way, the relay operation only consumes the switching action, effectively reducing the excitation loss of the relay coil.

[0040] Among them, the wireless communication module is equipped with several wireless interfaces and has a variety of wireless interface modules to choose from, such as Zigbee, LoRa, BLE, RF, LaKi, etc. After the module is configured or networked successfully, it will work in low-power mode; the wireless communication module is awakened by wireless commands or user interaction operations; the wireless communication module has a periodic timer wake-up.

[0041] Among them, the power control circuit provides control switching of at least three gears of power supply voltage, provides switching of power supply mode, and provides control switching of three gears of power supply voltage: 3.3V, 2.6V and 1.4V. When the device is in sleep mode, it selects the appropriate power supply voltage to effectively reduce the power loss in the device introduced by the invalid working voltage difference.

[0042] Among them, the power module includes a rechargeable battery interface, a button battery slot, a farad capacitor interface and an external power supply interface. According to the different power consumption of different modules, the appropriate power supply method is selected.

[0043] Among them, the relay control and protection module uses a magnetic latching relay or a solid-state relay, and is equipped with a zero-crossing sampling circuit to ensure that the relay switching action is near the zero point, thereby extending the service life of the relay; it can expand up to four control loops and is equipped with a protection circuit to effectively suppress the impact of instantaneous large current on the output end when the inductive load is connected.

[0044] Among them, the human-computer interaction control panel includes a human infrared pyroelectric sensor to achieve non-contact and close-range early awakening of the wireless switch panel, ensure the real-time nature of user interaction actions and low-power wireless interaction, and improve the human-computer interaction experience; set up to four buttons, and an optional self-generated micro-kinetic energy collection switch. If the self-generated micro-kinetic energy collection switch module is selected, each user button operation will bring about 250uJ to 300uJ of electricity to the charging circuit, which can prompt the service life of the device on a single charge. At the same time, when the device power is exhausted, the low-power wireless module can still work when the user operates the device, and transmit device status information such as device power exhaustion to the gateway or server.

[0045] In the present invention, the wireless switch panel is adapted to the assembly size of the 86 base box, which meets the requirements of home decoration construction standards; it is powered by an independent battery power supply and does not require wiring; the low-power wireless switch panel is combined with relay power recovery and micro-kinetic energy charging, which reduces the frequency of battery replacement or charging of the equipment, effectively reducing user usage costs.

[0046] In the present invention, when the wireless switch panel interacts: Zigbee, BLE, LaKi, LoRa and other device modules must be connected to the network to achieve low power consumption, so the network operation of the device is set to two modes;

[0047] The first type: When the device first joins the network, it must be manually triggered by the user to be enabled, reducing the power loss caused by inquiry frames and broadcasts when the device automatically joins the network;

[0048] The second method: After the device is offline, it reconnects by transmitting inquiry frames and broadcasts in a step-by-step manner to reduce power consumption. For example, within 2 minutes of being offline, it requests to reconnect to the network every 5 seconds. After 2 minutes, the network access request period increases by 5 seconds for every additional 2 minutes. If it exceeds one hour, it is set to request network access 5 times a day. After more than one month, the network access request is turned off and the device must be powered on again or manually triggered by the user.

[0049] See also Figure 2 A method for using a low-power wireless switch panel, based on any of the above wireless switch panels, comprises:

[0050] S1, after the wireless switch panel is powered on or initialized for the first time, it enters the inquiry and broadcast mode to be discovered by the gateway and enters S2;

[0051] In S2, if the gateway cannot be found, it enters the ladder network access mode. After one month, the device is put into silent sleep mode. The device power control circuit reduces the voltage to 1.4V and needs to be manually awakened by the user to enter S5.

[0052] If the device is discovered by the gateway and successfully connected to the network, the device reports the power-on status and reduces the device operating voltage to 2.6V through the power control circuit. The wireless module enters semi-sleep mode and enters S3.

[0053] In step S3, the server sends a wake-up and control command. The device wakes up after receiving the wake-up command, raises the power supply voltage to 3.3V, and uses the relay control circuit of the relay control and protection module to complete the control command action and enter step S4.

[0054] S4: After the action or command operation is completed, the device reduces the power supply voltage to 2.6V and enters a semi-dormant state. If there is no action during this period, the device sends a heartbeat command to the gateway at least five times a day at 2.6V, and cooperates with the gateway to monitor the device status. If the power supply is less than 10%, it enters S6. If the power is completely exhausted, it enters S5.

[0055] S5: After the user operates the panel, if the device is completely out of power, each user operation will send a wireless power replacement reminder frame to the gateway through the micro-kinetic energy collection circuit. At this time, the device cannot be turned on and off normally. If the user operates the device to initialize, it enters S1;

[0056] S6: Report the low power message to the gateway at least 20 times a day to prompt charging or replacing the device power supply. After the device replaces the power supply, return to S2.

[0057] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for using a low-power wireless switch panel, characterized by: Applicable to the following wireless switch panel, the wireless switch panel includes a switch panel body, on which a wireless communication module, a power control circuit, a power module, a relay control and protection module, an energy recovery circuit and a human-computer interaction control panel are provided; The energy recovery circuit includes: an energy storage capacitor, an energy storage capacitor charging circuit, an energy storage capacitor discharging circuit, an energy storage capacitor charging and discharging control circuit, a power supply charging circuit, a relay action control and monitoring circuit, a micro-kinetic energy collection circuit, a user operation panel, a voltage gear switching circuit and a power supply. Instructions include: S1, after the wireless switch panel is powered on or initialized for the first time, it enters the inquiry and broadcast mode to be discovered by the gateway and enters S2; In S2, if the gateway cannot be found, it enters the ladder network access mode. After one month, the device is put into silent sleep mode. The device power control circuit reduces the voltage to 1.4V and needs to be manually awakened by the user to enter S5. If the device is discovered by the gateway and successfully connected to the network, the device reports the power-on status and reduces the device operating voltage to 2.6V through the power control circuit. The wireless module enters semi-sleep mode and enters S3. In step S3, the server sends a wake-up and control command. The device wakes up after receiving the wake-up command, raises the power supply voltage to 3.3V, and uses the relay control circuit of the relay control and protection module to complete the control command action and enter step S4. S4: After the action or command operation is completed, the device reduces the power supply voltage to 2.6V and enters a semi-dormant state. If there is no action during this period, the device sends a heartbeat command to the gateway at least five times a day at 2.6V, and cooperates with the gateway to monitor the device status. If the power supply is less than 10%, it enters S6. If the power is completely exhausted, it enters S5. S5: After the user operates the panel, if the device is completely out of power, each user operation will send a wireless power replacement reminder frame to the gateway through the micro-kinetic energy collection circuit. At this time, the device cannot be turned on and off normally. If the user operates the device to initialize, it enters S1; S6: Report the low power message to the gateway at least 20 times a day to prompt charging or replacing the device power supply. After the device replaces the power supply, return to S2.

2. The method for using a low-power wireless switch panel according to claim 1, characterized in that: The relay action control and monitoring circuit is electrically connected to the energy storage capacitor charging circuit, the energy storage capacitor discharging circuit and the energy storage capacitor charging and discharging control circuit. When the relay is controlled to open, the energy storage capacitor is charged through the energy storage capacitor charging circuit. When the controlled action of the relay is completed, the energy storage capacitor is discharged through the energy storage capacitor discharging circuit, so that the electric energy enters the power charging circuit.

3. The method for using a low-power wireless switch panel according to claim 1, characterized in that: The wireless communication module is provided with a plurality of wireless interfaces; And / or, the wireless communication module is awakened by a wireless instruction or user interaction operation; And / or, the wireless communication module is provided with a periodic timer wake-up function.

4. The method for using a low-power wireless switch panel according to claim 1, wherein: The power supply control circuit provides control switching of at least three gears of power supply voltage.

5. The method for using a low-power wireless switch panel according to claim 1, wherein: The power supply module includes a rechargeable battery interface, a button battery slot, a farad capacitor interface and an external power supply interface.

6. The method for using a low-power wireless switch panel according to claim 1, characterized in that: The relay control and protection module adopts a magnetic latching relay or a solid-state relay and is provided with a zero-crossing sampling circuit to ensure that the relay switching action is near the zero point.

7. The method for using a low-power wireless switch panel according to claim 1, characterized in that: The human-computer interaction control panel includes a human infrared pyroelectric sensor to achieve non-contact close-range early awakening of the wireless switch panel.

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