阅读说明：本技术 物联网模块 (Internet of things module ) 是由 尹家燃 于欢欢 姚茂平 樊国兴 于 2021-08-04 设计创作，主要内容包括：一种物联网模块,包括低压电源模块、PWM信号接收和放大模块、PWM信号分组模块；PWM信号接收和放大模块接收外部输入的至少一路PWM信号；PWM信号分组模块将输入的各PWM信号都分为两路PWM信号；PWM信号分组模块输出的一路PWM信号通过下级PWM信号输出接口向下级物联网模块输出,用作下级物联网模块的PWM控制信号。设置有PWM信号接收和放大模块和下级PWM信号输出模块,能将本级的PWM控制信号传递到下一级,能方便地进行批量成组的电子设备控制,尤其是在植物工厂中的级联LED灯具,避免了对每个单独LED灯具操作的繁琐,能高效地批量化调整LED灯具照明状态。(An Internet of things module comprises a low-voltage power supply module, a PWM signal receiving and amplifying module and a PWM signal grouping module; the PWM signal receiving and amplifying module receives at least one path of externally input PWM signals; the PWM signal grouping module divides each input PWM signal into two paths of PWM signals; and one path of PWM signal output by the PWM signal grouping module is output to the subordinate Internet of things module through a subordinate PWM signal output interface and is used as a PWM control signal of the subordinate Internet of things module. The LED lamp control system is provided with the PWM signal receiving and amplifying module and the subordinate PWM signal output module, can transmit the current-level PWM control signal to the next level, can conveniently perform batch grouped electronic equipment control, particularly cascaded LED lamps in plant factories, avoids the complexity of operating each single LED lamp, and can efficiently adjust the illumination state of the LED lamps in batches.)

1. An Internet of things module is characterized in that,

the device comprises a low-voltage power supply module, a PWM signal receiving and amplifying module and a PWM signal grouping module;

the PWM signal receiving and amplifying module and the PWM signal grouping module are electrically connected with the low-voltage power supply module to obtain electric energy; the low-voltage power supply module is electrically connected with an external power supply to obtain electric energy;

the input end of the PWM signal receiving and amplifying module is electrically connected with an external signal source and receives at least one path of externally input PWM signals; the output end of the PWM signal receiving and amplifying module is electrically connected with the PWM signal grouping module, and each externally input PWM signal is amplified and then input to the PWM signal grouping module;

the PWM signal grouping module divides each input PWM signal into two paths of PWM signals;

one path of PWM signal output by the PWM signal grouping module is output to the lower-level Internet of things module through a lower-level PWM signal output interface and is used as a PWM control signal of the lower-level Internet of things module; and the other path of PWM signal is transmitted to a product control module, and the product control module outputs a product control signal to the product.

2. The IOT module of claim 1,

the product control module is a lamp control module;

the PWM signal grouping module is electrically connected with the lamp control module;

one path of PWM signals output from the PWM signal grouping module are transmitted to the lamp control module, and the lamp control module outputs lamp control signals.

3. The IOT module of claim 2,

the lamp control module is a lamp brightness control module;

the PWM signal receiving and amplifying module receives a path of externally input PWM signals;

and one path of PWM signal output by the PWM signal receiving and amplifying module is output to the lower-level Internet of things module through the lower-level PWM signal output interface and is used for controlling the brightness of the lamp of the lower-level Internet of things module.

4. The IOT module of claim 2,

the lamp control module is a lamp color temperature control module;

the PWM signal receiving and amplifying module receives a group of PWM signals input from the outside;

a group of PWM signals output by the PWM signal receiving and amplifying module are transmitted to the lamp color temperature control module, and a group of lamp color temperature control signals are output by the lamp color temperature control module;

and the other group of PWM signals output by the PWM signal receiving and amplifying module are output to the lower-level Internet of things module through the lower-level PWM signal output interface and are used for controlling the color temperature of the lower-level Internet of things module.

5. The IOT module of claim 2,

the system comprises an Internet of things main control module;

the Internet of things main control module is electrically connected with the PWM signal receiving and amplifying module;

the Internet of things main control module monitors whether the PWM signal receiving and amplifying module receives an externally input PWM signal or not, and preferentially selects the externally input PWM signal to be used as a control signal of the Internet of things module.

6. The IOT module of claim 5,

the device comprises an external knob position detection module and a PWM signal amplification module;

the Internet of things master control module also comprises a PWM signal generation submodule;

the Internet of things main control module is respectively and electrically connected with the external knob position detection module and the PWM signal amplification module;

when the Internet of things main control module monitors that the PWM signal receiving and amplifying module does not receive an externally input PWM signal, the external knob position detection module obtains an externally input knob control signal through position detection of an external brightness control knob and inputs the externally input knob control signal to the Internet of things main control module; the Internet of things main control module starts an internal PWM signal generation sub-module to generate a PWM control signal corresponding to the knob control signal; the PWM control signal is input to the PWM signal grouping module after passing through the PWM signal amplifying module.

7. The IOT module of claim 6,

the external knob position detection module comprises an AD data acquisition submodule; the AD data acquisition sub-module converts the position information of the external knob into a voltage value to be input to the Internet of things main control module, and the Internet of things main control module controls the PWM signal generation module to output PWM signals with corresponding characteristics according to the voltage value;

the AD data acquisition submodule comprises a voltage dividing resistor R10, an adjustable resistor J1 and a filter capacitor C9;

one end of the divider resistor R10 is electrically connected with a 5V power supply; the other end of the voltage dividing resistor R10 is electrically connected with one terminal of the adjustable resistor J1; the variable resistance output terminal of the adjustable resistor J1 is electrically connected with one end of the filter capacitor C9; the other end of the filter capacitor C9 and the other terminal of the adjustable resistor J1 are grounded.

8. The IOT module of claim 1,

the PWM signal receiving and amplifying module comprises a signal acquisition resistor R8, an input signal voltage dividing resistor R18 and a transistor Q2; one end of the signal acquisition resistor R8 serves as a PWM signal receiving terminal and is electrically connected to one end of the input signal voltage-dividing resistor R18; the other end of the signal acquisition resistor R8 is electrically connected with the base electrode of the transistor Q2; the emitter of the transistor Q2 is grounded with the other end of the input signal divider resistor R18; the collector of the transistor Q2 serves as the output terminal of the PWM signal amplification block for outputting the amplified PWM signal.

9. The IOT module of claim 1,

the PWM signal grouping module comprises a power driving submodule; the power driving sub-module comprises a MOSFEET with the model number of 9945B; an input pin of the PWM signal receiving and amplifying module is electrically connected with an output end of the PWM signal receiving and amplifying module to obtain an amplified PWM signal; the output end of the signal output module comprises two signal output terminals; one signal output terminal is output to the lower-level Internet of things module through a lower-level PWM signal output interface and used as a PWM control signal of the lower-level Internet of things module; the other signal output terminal is electrically connected with the lamp control module; and transmitting one path of PWM signals output by the PWM signal grouping module to the lamp control module, and outputting lamp control signals by the lamp control module.

10. The IOT module of claim 1,

the PWM signal receiving and amplifying module comprises a receiving signal interface; and the receiving signal interface and the lower-level PWM signal output interface are both RJ45 interfaces.

Technical Field

The invention belongs to the technical field of Internet of things, and particularly relates to an Internet of things module for cascading.

Background

In the prior art, group LED lamp control generally provides an independent wireless network access capability for individual LED lamps, and the server is connected to each LED lamp to implement dimming control of each lamp.

In practical applications, such as the control of groups of luminaires in agricultural plants, the prior art solutions, while enabling individual control of the brightness and chromaticity of each luminaire, are very time-consuming and labor-intensive to override each individual LED luminaire individually; and configuring an independent wireless network access capability for each lamp also increases the control cost of the LED lamp.

Therefore, a simple control device and method that can meet the above application scenarios and solve batch grouping of lamps at low cost are needed.

In addition to LED lamp control, in cascade control of other electronic products, a PWM control signal is usually used as one of conventional inter-stage continuous control signals, and can be transmitted between cascade electronic products, so that subsequent cascade electronic products can generate continuous and uniform control effect.

The noun explains:

the LED is an abbreviation of light emitting diode, and the chinese meaning is LED.

Disclosure of Invention

The invention aims to solve the technical problem of avoiding the defects of troublesome regulation and control and high cost of grouped lamps in the prior art, and provides an Internet of things module.

The technical scheme for solving the problems is that the Internet of things module comprises a low-voltage power supply module, a PWM signal receiving and amplifying module and a PWM signal grouping module; the PWM signal receiving and amplifying module and the PWM signal grouping module are electrically connected with the low-voltage power supply module to obtain electric energy; the low-voltage power supply module is electrically connected with an external power supply to obtain electric energy; the input end of the PWM signal receiving and amplifying module is electrically connected with an external signal source and receives at least one path of externally input PWM signals; the output end of the PWM signal receiving and amplifying module is electrically connected with the PWM signal grouping module, and each externally input PWM signal is amplified and then input to the PWM signal grouping module; the PWM signal grouping module divides each input PWM signal into two paths of PWM signals; one path of PWM signal output by the PWM signal grouping module is output to the lower-level Internet of things module through a lower-level PWM signal output interface and is used as a PWM control signal of the lower-level Internet of things module; and the other path of PWM signal is transmitted to a product control module, and the product control module outputs a product control signal to the product.

The product control module is a lamp control module; the PWM signal grouping module is electrically connected with the lamp control module; one path of PWM signals output from the PWM signal grouping module are transmitted to the lamp control module, and the lamp control module outputs lamp control signals.

The lamp control module is a lamp brightness control module; the PWM signal receiving and amplifying module receives a path of externally input PWM signals; and one path of PWM signal output by the PWM signal receiving and amplifying module is output to the lower-level Internet of things module through the lower-level PWM signal output interface and is used for controlling the brightness of the lamp of the lower-level Internet of things module.

The lamp control module is a lamp color temperature control module; the PWM signal receiving and amplifying module receives a group of PWM signals input from the outside; a group of PWM signals output by the PWM signal receiving and amplifying module are transmitted to the lamp color temperature control module, and a group of lamp color temperature control signals are output by the lamp color temperature control module; and the other group of PWM signals output by the PWM signal receiving and amplifying module are output to the lower-level Internet of things module through the lower-level PWM signal output interface and are used for controlling the color temperature of the lower-level Internet of things module.

The Internet of things module comprises an Internet of things main control module; the Internet of things main control module is electrically connected with the PWM signal receiving and amplifying module; the Internet of things main control module monitors whether the PWM signal receiving and amplifying module receives an externally input PWM signal or not, and preferentially selects the externally input PWM signal to be used as a control signal of the Internet of things module.

The device comprises an external knob position detection module and a PWM signal amplification module; the Internet of things master control module also comprises a PWM signal generation submodule; the Internet of things main control module is respectively and electrically connected with the external knob position detection module and the PWM signal amplification module; when the Internet of things main control module monitors that the PWM signal receiving and amplifying module does not receive an externally input PWM signal, the external knob position detection module obtains an externally input knob control signal through position detection of an external brightness control knob and inputs the externally input knob control signal to the Internet of things main control module; the Internet of things main control module starts an internal PWM signal generation sub-module to generate a PWM control signal corresponding to the knob control signal; the PWM control signal is input to the PWM signal grouping module after passing through the PWM signal amplifying module.

The external knob position detection module comprises an AD data acquisition submodule; the AD data acquisition sub-module converts the position information of the external knob into a voltage value to be input to the Internet of things main control module, and the Internet of things main control module controls the PWM signal generation module to output PWM signals with corresponding characteristics according to the voltage value; the AD data acquisition submodule comprises a voltage dividing resistor R10, an adjustable resistor J1 and a filter capacitor C9; one end of the divider resistor R10 is electrically connected with a 5V power supply; the other end of the voltage dividing resistor R10 is electrically connected with one terminal of the adjustable resistor J1; the variable resistance output terminal of the adjustable resistor J1 is electrically connected with one end of the filter capacitor C9; the other end of the filter capacitor C9 and the other terminal of the adjustable resistor J1 are grounded.

The PWM signal receiving and amplifying module comprises a signal acquisition resistor R8, an input signal voltage dividing resistor R18 and a transistor Q2; one end of the signal acquisition resistor R8 serves as a PWM signal receiving terminal and is electrically connected to one end of the input signal voltage-dividing resistor R18; the other end of the signal acquisition resistor R8 is electrically connected with the base electrode of the transistor Q2; the emitter of the transistor Q2 is grounded with the other end of the input signal divider resistor R18; the collector of the transistor Q2 serves as the output terminal of the PWM signal amplification block for outputting the amplified PWM signal.

The PWM signal grouping module comprises a power driving submodule; the power driving sub-module comprises a MOSFEET with the model number of 9945B; an input pin of the PWM signal receiving and amplifying module is electrically connected with an output end of the PWM signal receiving and amplifying module to obtain an amplified PWM signal; the output end of the signal output module comprises two signal output terminals; one signal output terminal is output to the lower-level Internet of things module through a lower-level PWM signal output interface and used as a PWM control signal of the lower-level Internet of things module; the other signal output terminal is electrically connected with the lamp control module; and transmitting one path of PWM signals output by the PWM signal grouping module to the lamp control module, and outputting lamp control signals by the lamp control module.

The PWM signal receiving and amplifying module comprises a receiving signal interface; and the receiving signal interface and the lower-level PWM signal output interface are both RJ45 interfaces.

Compared with the prior art, the invention has the beneficial effects that: 1. the LED lamp control system is provided with the PWM signal receiving and amplifying module and the PWM signal grouping module, can transmit the PWM control signal of the current level to the next level of Internet of things module, can conveniently control electronic equipment in groups in batches, and particularly can avoid the complexity of operating each single LED lamp and efficiently adjust the brightness in batches in a cascade LED lamp in a plant factory; the PWM signal amplification module can ensure the driving capability of the output signal of the current stage and the driving capability of the PWM signal when the PWM signal is transmitted to the next stage, so that the reliability of the signal transmission process is high; 3. the arrangement of the external knob position detection module and the PWM signal generation sub-module enables the mode of inputting the control box signal to be diversified, and the signal adjustment of the control target state can be carried out through the knob, and the brightness adjustment can also be carried out through the mode of inputting the PWM signal; the PWM control signal of the current stage is used for controlling and adjusting the current electronic equipment and is also used for controlling and adjusting the subsequent electronic equipment of each stage; 4. when the PWM control signal is input from the outside, the signal is preferentially selected to be used for control, and the consistency of batch grouping electronic equipment control is ensured.

Drawings

FIG. 1 is a schematic block diagram of a first embodiment of an IOT module;

FIG. 2 is a schematic block diagram of a second embodiment of an IOT module;

FIG. 3 is a second schematic block diagram of a first embodiment of an IOT module;

FIG. 4 is a second schematic block diagram of a third embodiment of an IOT module;

FIG. 5 is an electrical schematic diagram of an embodiment of a PWM signal receiving and amplifying module;

FIG. 6 is an electrical schematic diagram of an embodiment of an external knob position detection module;

fig. 7 is an electrical schematic diagram of an embodiment of the PWM signal grouping module.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In some embodiments of an internet of things module not shown in the drawings, the internet of things module comprises a low-voltage power supply module, a PWM signal receiving and amplifying module and a PWM signal grouping module; the PWM signal receiving and amplifying module and the PWM signal grouping module are electrically connected with the low-voltage power supply module to obtain electric energy; the low-voltage power supply module is electrically connected with an external power supply to obtain electric energy; the input end of the PWM signal receiving and amplifying module is electrically connected with an external signal source and receives at least one path of externally input PWM signals; the output end of the PWM signal receiving and amplifying module is electrically connected with the PWM signal grouping module, and each externally input PWM signal is amplified and then input to the PWM signal grouping module; the PWM signal grouping module divides each input PWM signal into two paths of PWM signals; and one path of PWM signal output by the PWM signal grouping module is output to the subordinate Internet of things module through a subordinate PWM signal output interface and is used as a PWM control signal of the subordinate Internet of things module. And the other path of PWM signal is transmitted to a product control module, and the product control module outputs a product control signal to the product. The product control module is a lamp control module; the PWM signal grouping module is electrically connected with the lamp control module; one path of PWM signals output from the PWM signal grouping module are transmitted to the lamp control module, and the lamp control module outputs lamp control signals.

In the embodiment of the internet of things module shown in fig. 1 to 2, the internet of things module further includes an internet of things main control module, an external knob position detection module and a PWM signal amplification module; the Internet of things main control module is electrically connected with the PWM signal receiving and amplifying module; the Internet of things master control module monitors whether the PWM signal receiving and amplifying module receives an externally input PWM signal or not, and preferentially selects the externally input PWM signal as a control signal of the Internet of things module; the Internet of things master control module also comprises a PWM signal generation submodule; the Internet of things main control module is respectively and electrically connected with the external knob position detection module and the PWM signal amplification module; when the Internet of things main control module monitors that the PWM signal receiving and amplifying module does not receive an externally input PWM signal, the external knob position detection module obtains an externally input knob control signal through position detection of an external brightness control knob and inputs the externally input knob control signal to the Internet of things main control module; the Internet of things main control module starts an internal PWM signal generation sub-module to generate a PWM control signal corresponding to the knob control signal; the PWM control signal is input to the PWM signal grouping module after passing through the PWM signal amplifying module.

In the embodiment of the internet of things module shown in fig. 1 and 3, a lamp control module is included; the lamp control module is a lamp brightness control module; the PWM signal grouping module is electrically connected with the lamp control module; one path of PWM signals output from the PWM signal grouping module are transmitted to the lamp control module, and the lamp control module outputs lamp control signals. The PWM signal receiving and amplifying module receives a path of externally input PWM signals; and one path of PWM signal output by the PWM signal receiving and amplifying module is output to the lower-level Internet of things module through the lower-level PWM signal output interface and is used for controlling the brightness of the lamp of the lower-level Internet of things module.

In the embodiment of the internet of things module shown in fig. 2 and 4, the difference from the embodiment of the internet of things module shown in fig. 1 and 3 is that the lamp control module is a lamp color temperature control module; the PWM signal receiving and amplifying module receives a group of PWM signals input from the outside; a group of PWM signals output by the PWM signal receiving and amplifying module are transmitted to the lamp color temperature control module, and a group of lamp color temperature control signals are output by the lamp color temperature control module; and the other group of PWM signals output by the PWM signal receiving and amplifying module are output to the lower-level Internet of things module through the lower-level PWM signal output interface and are used for controlling the color temperature of the lower-level Internet of things module. The group of PWM signals comprises at least two PWM signals, and four PWM signals are arranged in the figure. The quantity of PWM signal can be adjusted according to the control demand is nimble when the in-service use.

In the embodiment shown in fig. 5, the external knob position detection module includes an AD data acquisition sub-module; the AD data acquisition sub-module converts the position information of the external knob into a voltage value to be input to the Internet of things main control module, and the Internet of things main control module controls the PWM signal generation module to output PWM signals with corresponding characteristics according to the voltage value; the AD data acquisition submodule comprises a voltage dividing resistor R10, an adjustable resistor J1 and a filter capacitor C9; one end of the divider resistor R10 is electrically connected with a 5V power supply; the other end of the voltage dividing resistor R10 is electrically connected with one terminal of the adjustable resistor J1; the variable resistance output terminal of the adjustable resistor J1 is electrically connected with one end of the filter capacitor C9; the other end of the filter capacitor C9 and the other terminal of the adjustable resistor J1 are grounded.

As shown in fig. 6, the PWM signal receiving and amplifying module includes a signal obtaining resistor R8, an input signal dividing resistor R18 and a transistor Q2; one end of the signal acquisition resistor R8 serves as a PWM signal receiving terminal and is electrically connected to one end of the input signal voltage-dividing resistor R18; the other end of the signal acquisition resistor R8 is electrically connected with the base electrode of the transistor Q2; the emitter of the transistor Q2 is grounded with the other end of the input signal divider resistor R18; the collector of the transistor Q2 serves as the output terminal of the PWM signal amplification block for outputting the amplified PWM signal.

In the embodiment shown in fig. 7, the PWM signal grouping module includes a power driver sub-module; the power driving sub-module comprises a MOSFEET with the model number of 9945B; an input pin of the PWM signal receiving and amplifying module is electrically connected with an output end of the PWM signal receiving and amplifying module to obtain an amplified PWM signal; the output end of the signal output module comprises two signal output terminals; one signal output terminal is output to the lower-level Internet of things module through a lower-level PWM signal output interface and used as a PWM control signal of the lower-level Internet of things module; the other signal output terminal is electrically connected with the lamp control module; and transmitting one path of PWM signals output by the PWM signal grouping module to the lamp control module, and outputting lamp control signals by the lamp control module.

In some embodiments not shown in the figures, the PWM signal receiving and amplifying module includes a receive signal interface; and the receiving signal interface and the lower-level PWM signal output interface are both RJ45 interfaces.

When a plurality of internet of things modules are cascaded; the receiving signal interface and the output signal interface both adopt RJ45 interfaces; the upper output signal interface and the lower receiving signal interface can be connected through a direct connection network cable; any signal terminal in the RJ45 interface can be used for connection between the upper output signal interface and the lower receiving signal interface. The connection mode has the advantages that the signal connection relation is extremely simple, the connected interface is universal, the connection is very convenient and easy to obtain, and the cost is low; the high-efficiency networking can be completed at low cost; and single signal transmission, no mutual interference of signals and high reliability. In actual operation, the maximum number of cascade-controlled electronic devices such as LED lamps can reach 500, and the lighting cascade requirement of a common plant factory can be met.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the contents of the specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.