Multi-branch centralized wireless direct-current illumination centralized control system

Abstract

The invention relates to the technical field of circuits, and particularly discloses a multi-branch centralized wireless direct-current illumination centralized control system, which comprises a first conversion module, a wireless transmitting panel, a wireless data receiving unit circuit, a control module, a channel and a lamp, the input end of the first conversion module is connected with the mains supply, the output end is connected with the channels, and the first conversion module is used for converting the mains supply into low-voltage direct current and connected with the lamp through the channels; the wireless transmitting panel is used for transmitting control data by a user; the wireless data receiving unit circuit is used for receiving control data and transmitting the control data to the control module; and the control module is used for analyzing and processing the control data, and controlling each channel to supply power to the corresponding lamp or not based on an analysis and processing result and a preset mapping relation. Therefore, the lamps with multiple paths can be controlled only through one wireless data receiving unit circuit, and the lamps are supplied with power through low-voltage direct current, so that the power utilization safety is ensured.

Description

Technical Field

[0001] The present invention relates to the field of circuit technology, and in particular to a multi-branch centralized wireless direct current lighting centralized control system. Background Art

[0002] In traditional homes and commercial places, most of the lamps used are powered by AC power provided by the home or commercial power network. This AC power supply is usually high voltage, generally 220V (Chinese household electricity standard) or other higher voltage values.

[0003] Since high voltage has great energy, during the installation, use and maintenance of lamps, if the wires are damaged, the insulation is poor, or the lamps are operated incorrectly, the human body may be exposed to high voltage, resulting in electric shock accidents and the risk of high voltage electric shock to the user. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a multi-branch centralized wireless DC lighting centralized control system to overcome the current lamp safety issues.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] The embodiment of the present application provides a multi-branch centralized wireless DC lighting centralized control system, including:

[0007] A first conversion module, a wireless transmission panel, a wireless data receiving unit circuit, a control module, a channel and a lamp; wherein the number of the channel, the wireless transmission panel and the lamp is multiple, and the multiple channels correspond to the multiple lamps one by one;

[0008] The input end of the first conversion module is connected to the mains, and the output end is connected to each of the channels. The first conversion module is used to convert the mains into low-voltage direct current, and connect it to the lamp through each of the channels;

[0009] The wireless transmission panel is used for transmitting control data for the user;

[0010] The wireless data receiving unit circuit is used to receive the control data and transmit the control data to the control module;

[0011] The control module is used to parse and process the control data, and based on the parsing result and the preset mapping relationship, control each of the channels to supply power to the corresponding lamp.

[0012] Further, in some embodiments of the present application, the controlling whether each of the channels supplies power to the corresponding lamp based on the analysis processing result and the preset mapping relationship includes:

[0013] Determine the target channel based on the analysis processing result and the preset mapping relationship;

[0014] Based on the time-division multiplexing principle, the target channel is controlled to be turned on so that the lamp corresponding to the target channel is powered on; or the target channel is controlled to be turned off so that the lamp corresponding to the target channel is powered off.

[0015] Furthermore, in some embodiments of the present application, a matrix keyboard is also included;

[0016] The matrix keyboard is provided with numeric keys corresponding to the number of channels;

[0017] The digital key is used to generate a corresponding clear code matching instruction, and the clear code matching instruction is used for the control module to clear or establish a mapping relationship between the pressed wireless transmission panel and the channel corresponding to the digital key.

[0018] Further, in some embodiments of the present application, each of the wireless transmission panels corresponds to only one of the channels, and is used for allowing the user to control the opening and closing of the corresponding channel through the wireless transmission panel;

[0019] Each of the channels may correspond to a plurality of the wireless transmission panels, so that a user can control the opening and closing of the corresponding channel through any one of the plurality of the wireless transmission panels.

[0020] Furthermore, in some embodiments of the present application, the plurality of channels are isolated by relay switching.

[0021] Furthermore, in some embodiments of the present application, the process in which the control module controls each of the channels to supply power to the corresponding lamps includes:

[0022] For a target lamp, the voltage is first dynamically raised, and during the voltage raising process, the driving current of the target lamp is detected;

[0023] When the driving current of the target lamp reaches a preset threshold, a constant voltage is provided to the target lamp to achieve constant current and constant voltage control of the target lamp.

[0024] Furthermore, in some embodiments of the present application, the number of the channels and the number of the lamps are both 16.

[0025] Furthermore, in some embodiments of the present application, the first conversion module is an AC-DC flyback switching power supply, which is used to convert the mains power into 48V low-voltage direct current.

[0026] Furthermore, in some embodiments of the present application, it further includes: a second conversion module;

[0027] The input end of the second conversion module is connected to the output end of the first conversion module, the output end of the second conversion module is connected to the control module, and the second conversion module is used to supply power to the control system;

[0028] The second conversion module includes a DC-DC BUCK step-down module and an LDO step-down module connected in series.

[0029] Furthermore, in some embodiments of the present application, the wireless transmitting panel and the wireless data receiving unit circuit perform data transmission via wireless radio frequency technology.

[0030] The multi-branch centralized wireless DC lighting centralized control system provided by the present application includes a first conversion module, a wireless transmission panel, a wireless data receiving unit circuit, a control module, a channel and a lamp; the input end of the first conversion module is connected to the mains, and the output end is connected to each channel. The first conversion module is used to convert the mains into low-voltage DC power and connect it to the lamp through each channel; the wireless transmission panel is used for users to transmit control data; the wireless data receiving unit circuit is used to receive control data and transmit the control data to the control module; the control module is used to parse and process the control data, and based on the parsing and processing results and the preset mapping relationship, control whether each channel supplies power to the corresponding lamp. In this way, the lamps of multiple channels can be controlled by only one wireless data receiving unit circuit, and the lamps are powered by low-voltage DC power to ensure power safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0032] Figure 1 It is a structural schematic diagram of a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of a multi-branch centralized wireless DC lighting centralized control system provided by another embodiment of the present invention;

[0034] Figure 3 It is a schematic diagram of the control principle of a multi-branch centralized wireless DC lighting centralized control system provided by another embodiment of the present invention.

[0035] Figure 4 It is a circuit schematic diagram of a control module in a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0036] Figure 5 It is a circuit schematic diagram of a driver in a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0037] Figure 6 It is a circuit schematic diagram of a receiving unit in a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0038] Figure 7 It is a circuit schematic diagram of a matrix button in a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0039] Figure 8 It is a circuit schematic diagram of the first conversion module in the multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention;

[0040] Fig. 9 It is a circuit schematic diagram of an indicator light in a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0042] Figure 1 This is a schematic diagram of the structure of a multi-branch centralized wireless DC lighting centralized control system provided by an embodiment of the present invention. Figure 1 The system includes: a first conversion module, a wireless transmission panel, a wireless data receiving unit circuit, a control module, a channel and a lamp.

[0043] Among them, the number of channels, wireless transmission panels and lamps are all multiple, and the multiple channels correspond to the multiple lamps one by one; the input end of the first conversion module is connected to the AC power, and the output end is connected to each channel. The first conversion module is used to convert the AC power into low-voltage direct current and connect it to the lamp through each channel; the wireless transmission panel is used for the user to transmit control data; the wireless data receiving unit circuit is used to receive the control data and pass the control data to the control module; the control module is used to parse and process the control data, and based on the analysis and processing results and the preset mapping relationship, control each channel whether to power the corresponding lamp.

[0044] Among them, the channel is the line composed of transmission and control devices between the control module and the lamp.

[0045] The multi-branch centralized wireless DC lighting centralized control system provided in the present application can control lamps in multiple channels through only one wireless data receiving unit circuit, and the lamps are powered by low-voltage DC power to ensure electricity safety.

[0046] Figure 2 is a structural schematic diagram of a multi-branch centralized wireless DC lighting centralized control system provided by another embodiment of the present invention, Figure 3 FIG. 1 is a schematic diagram of the control principle of a multi-branch centralized wireless DC lighting centralized control system provided by another embodiment of the present invention. Figure 2 and Figure 3 As shown:

[0047] In some embodiments of the present application, the specific number of channels and lamps can be 16, that is, the control system is a 16-way multi-branch centralized wireless DC lighting centralized control system, and the high voltage electricity of 220V of the mains is converted into 48V low voltage DC electricity through a first conversion module such as an AC-DC flyback switching power supply, and in a control module such as a 32-bit single-chip microcomputer (specifically such as Figure 4 The lamps are controlled under the control of the controller (as shown), thereby greatly ensuring the personal safety of users in terms of lamp use safety.

[0048] It should be noted that in the present application, through the time-sharing multiplexing processing architecture logic of software and hardware, it is possible to use a single wireless data receiving unit circuit such as a 433 wireless decoding circuit to receive control data sent by multiple wireless transmission panels, thereby replacing the traditional multi-channel wireless control channels on the market that require multiple corresponding wireless receivers, thereby maximizing the cost.

[0049] Among them, the control module controls whether each channel supplies power to the corresponding lamp based on the analysis processing results and the preset mapping relationship, including: determining the target channel based on the analysis processing results and the preset mapping relationship; based on the time-division multiplexing principle, controlling the target channel to turn on so that the lamp corresponding to the target channel is powered on; or controlling the target channel to turn off so that the lamp corresponding to the target channel is powered off.

[0050] Specifically, in the present application, each street lamp is controlled by a driving circuit in a corresponding channel, wherein the driving circuit is as follows: Figure 4 As shown, it is used to realize relay on-off control and constant voltage and constant current, wherein the constant voltage and constant current driving part can adapt to a maximum of 144W lamps.

[0051] In actual applications, users can send control data through multiple wireless transmission panels (in actual applications, a certain panel can be directly pressed to make the panel automatically send the corresponding control data). The control data is received through a total wireless data receiving unit circuit such as a 433 receiving chip (it can be understood that the control data is 433 data, and the specific circuit principle of the 433RF receiving data output is as follows Figure 5 As shown), the received 433 chip DATA data is output to the control module such as a single-chip microcomputer for decoding processing, and the single-chip microcomputer performs analysis processing on the received data.

[0052] Among them, the processing logic of the single-chip microcomputer is to first parse the corresponding control data to obtain the analysis and processing results. If the data received is sent by multiple or multiple groups of wireless transmission panels, the single-chip microcomputer controls the opening and closing of the corresponding channels based on the preset program and the time-sharing program logic according to the analysis and processing results and the preset mapping table, thereby powering on or off the corresponding lamps.

[0053] Furthermore, in the present application, a matrix keyboard (partial circuit principle as shown in FIG. Figure 6 As shown), it should be noted that in this application, compared with the traditional one-to-one key method, a key is usually configured for each channel, which will take up a large control panel space. The matrix keyboard pairing method of this application can realize more key functions in the same area by arranging multiple keys in a matrix form, greatly improving the space utilization rate, making the control panel of the device more compact and simple. It can also achieve the effects of reducing hardware costs, enhancing flexibility, facilitating operation and management, and improving the intelligence of the device.

[0054] Specifically, the matrix keyboard is provided with digital keys corresponding to the number of channels; the digital keys are used to generate corresponding clear code matching instructions, and the clear code matching instructions are used for the control module to clear or establish a mapping relationship between the pressed wireless transmission panel and the channel corresponding to the digital key.

[0055] In actual control, when the wireless transmitting panel is pressed and the control module parses and processes the control data, it also detects whether any key is pressed on the scanning matrix keyboard. If it is detected that no key is pressed on the scanning matrix keyboard, the normal channel ID address mapping processing mentioned above is performed; if it is detected that a key is pressed on the scanned matrix keyboard, the corresponding existing received data channel is mapped according to the corresponding key data, that is, the number corresponding to the channel. After the parsed data is valid, it is stored in the corresponding FLASH space to update the mapping table for subsequent use.

[0056] In actual applications, the matrix keyboard can be triggered to clear or match by pressing the number of times. For example, when pairing, the user can double-click the corresponding channel button to trigger the matching process and realize the pairing function. When clearing the corresponding channel, the user can press the corresponding channel button for 8 consecutive times and then long press it to clear the previous pairing parameters of the corresponding channel.

[0057] Furthermore, in some embodiments of the present application, each wireless transmission panel corresponds to only one channel, and is used for the user to control the opening and closing of the corresponding channel through the wireless transmission panel; and each channel may correspond to multiple wireless transmission panels, and is used for the user to control the opening and closing of the corresponding channel through any one of the multiple wireless transmission panels. And the wireless transmission panel and the wireless data receiving unit circuit perform data transmission through wireless radio frequency technology.

[0058] In this way, wireless radio frequency technology is used to control the switch of lamps through wireless transmitter panels, and the single-chip microcomputer can map multiple wireless transmitter panels such as 100 through internal data comparison to achieve single control channel mapping, thereby facilitating actual control by users and improving user experience. At the same time, the use of wireless radio frequency technology can save wiring between lamps and panels, thus saving construction wiring costs.

[0059] Furthermore, in some embodiments of the present application, multiple channels are isolated by relay switching.

[0060] Specifically, in the multi-branch centralized wireless DC lighting centralized control system provided by the present application, multiple internal channel controls are controlled by relay switching to achieve channel isolation and avoid interference from abnormal channels. Figure 3 As shown, each channel adopts the same control principle and the same circuit, such as being equipped with a relay switch control unit to realize control, thereby achieving independent control without affecting each other and improving the stability of the control system.

[0061] It should be noted that in the above embodiments, the power of the lamps such as LEDs corresponding to each channel can be the same or different. When the power of the lamps is different, the parameter values ​​of the corresponding channel control internal adaptation can be stored in a mapping table or a single-chip microcomputer to adapt lamps of different powers through different parameter values.

[0062] On this basis, constant current and constant voltage control can be achieved for each lamp in this application. For example, for turning on a certain lamp, i.e., the target lamp, the following control strategy is adopted: first, the voltage is dynamically raised, and during the voltage raising process, the driving current of the lamp is detected; when the driving current of the lamp reaches the preset threshold, a constant voltage is provided to the lamp to achieve constant current and constant voltage control for the target lamp.

[0063] Specifically, first, after the DC-DC voltage is stepped down internally and matched to the corresponding lamps such as LED lamp posts, i.e., LED loads, the output voltage is continuously raised while the corresponding LED drive current is detected. During the continuous raising process, the LED drive current is detected cyclically. In this process, the detected current is compared according to the preset current ratio. According to U=P / I, when the current reaches the set value, the load LED is fixed. At this time, the constant output voltage is output after feedback detection, thereby realizing constant current and constant voltage control output. In this way, not only can the lamps be powered by low-voltage DC, the personal safety of the users can be ensured. Moreover, by making the LED lighting drive with constant current and constant voltage, low-voltage DC is utilized, and the conversion efficiency can be improved; and compared with the traditional AC direct power supply, the output current becomes lower because the lamp board is controlled by high-efficiency constant current, so that thinner power supply wires can be used.

[0064] In addition, in the present application, the first conversion module mentioned in the above embodiment can be an AC-DC flyback switching power supply, which is used to convert the mains power into a 48V low-voltage direct current. Figure 2 The AC-DC flyback switching power supply in the embodiment of the present invention also includes a second conversion module; the input end of the second conversion module is connected to the output end of the first conversion module, the output end of the second conversion module is connected to the control module, and the second conversion module is used to power the control system; the second conversion module includes a DC-DC BUCK step-down module (such as Figure 2 The DC-DC BUCK shown in the figure is used to convert to 5V / 2A. The specific circuit principle is as follows Figure 7 As shown) and LDO step-down module (as Figure 2 The LDO step-down shown in the figure is used to convert to 3.3V / 600mA), thereby connecting to the microcontroller to power the circuit of the entire control system.

[0065] The multi-branch centralized wireless DC lighting centralized control system provided by the present application also includes an indicator light for displaying the status of each channel. Figure 2 As shown, it can be controlled by the relevant control circuit of the 16-channel status indicator light connected to the single-chip microcomputer (the specific circuit principle is as follows Figure 8 shown).

[0066] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0067] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0068] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0069] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0070] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0071] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0072] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A multi-branch centralized wireless DC lighting centralized control system, characterized in that: include: A first conversion module, a wireless transmission panel, a wireless data receiving unit circuit, a control module, a channel and a lamp; wherein the number of the channel, the wireless transmission panel and the lamp is multiple, and the multiple channels correspond to the multiple lamps one by one; The input end of the first conversion module is connected to the mains, and the output end is connected to each of the channels. The first conversion module is used to convert the mains into low-voltage direct current, and connect it to the lamp through each of the channels; The wireless transmission panel is used for transmitting control data for the user; The wireless data receiving unit circuit is used to receive the control data and transmit the control data to the control module; The control module is used to parse and process the control data, and based on the parsing result and the preset mapping relationship, control each of the channels to supply power to the corresponding lamp.

2. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: The controlling of whether each of the channels supplies power to the corresponding lamp based on the analysis processing result and the preset mapping relationship includes: Determine the target channel based on the analysis processing result and the preset mapping relationship; Based on the time-division multiplexing principle, the target channel is controlled to be turned on so that the lamp corresponding to the target channel is powered on; or the target channel is controlled to be turned off so that the lamp corresponding to the target channel is powered off.

3. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: Also includes a matrix keyboard; The matrix keyboard is provided with numeric keys corresponding to the number of channels; The digital key is used to generate a corresponding clear code matching instruction, and the clear code matching instruction is used for the control module to clear or establish a mapping relationship between the pressed wireless transmission panel and the channel corresponding to the digital key.

4. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: Each of the wireless transmission panels corresponds to only one of the channels, and is used for allowing the user to control the opening and closing of the corresponding channel through the wireless transmission panel; Each of the channels may correspond to a plurality of the wireless transmission panels, so that a user can control the opening and closing of the corresponding channel through any one of the plurality of the wireless transmission panels.

5. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: The plurality of channels are isolated by relay switching.

6. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: The process of the control module controlling each of the channels to supply power to the corresponding lamps includes: For a target lamp, the voltage is first dynamically raised, and during the voltage raising process, the driving current of the target lamp is detected; When the driving current of the target lamp reaches a preset threshold, a constant voltage is provided to the target lamp to achieve constant current and constant voltage control of the target lamp.

7. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: The number of the channels and the number of the lamps are both 16.

8. The multi-branch centralized wireless DC lighting centralized control system according to claim 1 is characterized in that: The first conversion module is an AC-DC flyback switching power supply, which is used to convert the mains power into 48V low-voltage direct current.

9. The multi-branch centralized wireless DC lighting centralized control system according to claim 1, characterized in that: Also includes: A second conversion module; The input end of the second conversion module is connected to the output end of the first conversion module, the output end of the second conversion module is connected to the control module, and the second conversion module is used to supply power to the control system; The second conversion module includes a DC-DC BUCK step-down module and an LDO step-down module connected in series.

10. The multi-branch centralized wireless DC lighting centralized control system according to claim 1, characterized in that: The wireless transmitting panel and the wireless data receiving unit circuit perform data transmission via wireless radio frequency technology.

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