阅读说明：本技术 通信单元及防爆照明系统 (Communication unit and explosion-proof lighting system ) 是由 周明杰 谢征文 于 2020-06-13 设计创作，主要内容包括：本发明公开了一种通信单元及防爆照明系统。所述通信单元包括：天线,用于接收或发送载有待通信信息的射频波；所述射频波的工作频段为420MHz至440MHz,中心频率为433MHz；所述待通信信息包括防爆灯具状态信息和防爆灯具控制信息中的至少一种；射频通信模块,与所述天线相连接,用于从所述天线接收的所述射频波中提取所述待通信信息并传输给控制模块,以及用于基于所述控制模块传输过来的所述待通信信息生成所述射频波经由所述天线向空间辐射；和控制模块,与所述射频通信模块相连接,用于接收或输出所述待通信信息。本发明具有较好的通信稳定性和通信距离,能够适配照明设备远距离控制需求。(The invention discloses a communication unit and an explosion-proof lighting system. The communication unit includes: the antenna is used for receiving or transmitting radio frequency waves carrying information to be communicated; the working frequency band of the radio frequency wave is 420MHz to 440MHz, and the central frequency is 433 MHz; the information to be communicated comprises at least one of explosion-proof lamp state information and explosion-proof lamp control information; the radio frequency communication module is connected with the antenna, and is used for extracting the information to be communicated from the radio frequency waves received by the antenna, transmitting the information to be communicated to the control module, and generating the radio frequency waves to be radiated to the space through the antenna based on the information to be communicated transmitted by the control module; and the control module is connected with the radio frequency communication module and used for receiving or outputting the information to be communicated. The invention has better communication stability and communication distance and can adapt to the remote control requirement of the lighting equipment.)

1. A communication unit, characterized in that the communication unit comprises:

the antenna is used for receiving or transmitting radio frequency waves carrying information to be communicated; the working frequency band of the radio frequency wave is 420MHz to 440MHz, and the central frequency is 433 MHz; the information to be communicated comprises at least one of explosion-proof lamp state information and explosion-proof lamp control information;

the radio frequency communication module is connected with the antenna, and is used for extracting the information to be communicated from the radio frequency waves received by the antenna, transmitting the information to be communicated to the control module, and generating the radio frequency waves to be radiated to the space through the antenna based on the information to be communicated transmitted by the control module; and

and the control module is connected with the radio frequency communication module and used for receiving or outputting the information to be communicated.

2. The communication unit of claim 1,

the antenna adopts a radio frequency antenna J1;

the radio frequency communication module includes: and the model is SI4463 radio frequency communication chip U2.

3. The communication unit of claim 2,

the control module includes: a microcontroller U1 of model SAMD20G 17;

the RF pin of the radio frequency communication chip U2 is connected with the radio frequency antenna J1; an RX pin of the radio frequency communication chip U2 is connected with a PB23 pin of the microcontroller U1, and a TX pin of the radio frequency communication chip U2 is connected with a PB22 pin of the microcontroller U1.

4. The communication unit of claim 3,

the SCK pin, the SDO pin, the SDI pin and the SEL pin of the radio frequency communication chip U2 are sequentially connected with the PA19 pin, the PA16 pin, the PA18 pin and the PA17 pin of the microcontroller U1;

an SDN pin of the radio frequency communication chip U2 is connected with a PA25 pin of the microcontroller U1; the IRQ pin of the radio frequency communication chip U2 is connected with the PA20 pin of the microcontroller U1;

an IO0 pin, an IO1 pin, an IO2 pin and an IO3 pin of the radio frequency communication chip U2 are sequentially connected with a PA22 pin, a PA21 pin, a PA23 pin and a PA24 pin of the microcontroller U1.

5. The communication unit of claim 3, further comprising:

the power supply is used for supplying power to the communication unit;

and the input/output port is connected with a PB10 pin and a PB11 pin of the microcontroller U1.

6. The communication unit of claim 5, further comprising:

a first indicator light for indicating whether the microcontroller U1 is in a receiving state of the information to be communicated; and

the second indicator light is used for indicating whether the microcontroller U1 is in a sending state of the information to be communicated;

one end of the first indicator light is connected with the power supply, and the other end of the first indicator light is connected with a pin PA10 of the microcontroller U1; one end of the second indicator light is connected with the power supply, and the other end of the second indicator light is connected with a pin PA11 of the microcontroller U1.

7. An explosion-proof lighting system, the system comprising:

at least one explosion-proof light fixture;

the control terminal is used for controlling the working state of the explosion-proof lamp; and

the gateway is connected with the control terminal and the explosion-proof lamp and is used for transmitting the explosion-proof lamp control information sent by the control terminal to the corresponding explosion-proof lamp and transmitting the received explosion-proof lamp state information to the control terminal;

the communication unit of any one of claims 1 to 4 is arranged on each of the explosion-proof lamp, the control terminal and the gateway.

8. An explosion-proof lighting system according to claim 7 wherein the system further comprises:

and the detector is used for detecting the working state of the explosion-proof lamp and transmitting the detected state information of the explosion-proof lamp to the gateway through the communication unit.

9. The explosion-proof lighting system according to claim 7, wherein, in the case where the explosion-proof lamp is plural, the ID of the explosion-proof lamp is further included in the simultaneous transmission with the explosion-proof lamp control information or the explosion-proof lamp status information.

10. An explosion-proof lighting system according to claim 7 or 8 wherein the explosion-proof light fixture status information comprises one or more of switch status information, brightness status information, fault status information.

Technical Field

The invention relates to the technical field of explosion-proof lighting, in particular to a communication unit and an explosion-proof lighting system with the same.

Background

The control and management of lighting equipment can not be separated from the connection with the equipment control module, and lighting equipment can transmit state information to the equipment control module, and the equipment control module can also transmit equipment control signals to lighting equipment, and then realizes the control and monitoring management of lighting equipment, and consequently, the connected mode and the communication mode of lighting equipment and equipment control module are especially important.

Disclosure of Invention

The invention provides a communication unit which can adapt to the remote control requirement of the lighting equipment and has good performances of communication stability, distance and the like, and also provides an explosion-proof lighting system with the communication unit.

The invention adopts a technical means that: there is provided a communication unit comprising:

the antenna is used for receiving or transmitting radio frequency waves carrying information to be communicated; the working frequency band of the radio frequency wave is 420MHz to 440MHz, and the central frequency is 433 MHz; the information to be communicated comprises at least one of explosion-proof lamp state information and explosion-proof lamp control information;

the radio frequency communication module is connected with the antenna, and is used for extracting the information to be communicated from the radio frequency waves received by the antenna, transmitting the information to be communicated to the control module, and generating the radio frequency waves to be radiated to the space through the antenna based on the information to be communicated transmitted by the control module; and

and the control module is connected with the radio frequency communication module and used for receiving or outputting the information to be communicated.

The invention adopts another technical means that: there is provided an explosion-proof lighting system comprising:

at least one explosion-proof light fixture;

the control terminal is used for controlling the working state of the explosion-proof lamp; and

the gateway is connected with the control terminal and the explosion-proof lamp and is used for transmitting the explosion-proof lamp control information sent by the control terminal to the corresponding explosion-proof lamp and transmitting the received explosion-proof lamp state information to the control terminal;

the explosion-proof lamp, the control terminal and the gateway are all provided with the communication unit.

Due to the adoption of the technical scheme, the communication unit and the explosion-proof lighting system provided by the invention transmit the explosion-proof lamp state information and the explosion-proof lamp control information in each node of the explosion-proof lighting system in a 433 radio frequency wireless communication mode, have better communication stability and communication distance, and can adapt to the remote control requirement of the lighting equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a block diagram of a communication unit in one embodiment;

FIG. 2 is a block diagram of the structure of a communication unit in one embodiment;

FIG. 3 is a circuit schematic of a communication unit in one embodiment;

FIG. 4 is a diagram of an example of an implementation of a communication unit in an explosion-proof lighting system in one embodiment;

FIG. 5 is a block diagram of the construction of an explosion-proof lighting system in one embodiment;

fig. 6 is a block diagram showing the structure of the explosion-proof lighting system in one embodiment.

In the figure: 1. the system comprises a communication unit, 2, an explosion-proof lamp, 3, a control terminal, 4, a gateway, 5, a detector, 11, an antenna, 12, a radio frequency communication module, 13, a control module, 14, a power supply, 15, an input/output port, 16, a first indicator lamp, 17 and a second indicator lamp.

Detailed Description

In order to make the objects, technical solutions and technical effects of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

The present invention provides a communication unit 1, as shown in fig. 1, in one embodiment, the communication unit 1 may include: an antenna 11, a radio frequency communication module 12 and a control module 13. The antenna 11 is used for receiving or transmitting radio frequency waves carrying information to be communicated. The working frequency range of the radio frequency wave is 420MHz to 440MHz, and the central frequency is 433 MHz. The information to be communicated comprises at least one of state information of the explosion-proof lamp 2 and control information of the explosion-proof lamp 2. The radio frequency communication module 12 is configured to extract the information to be communicated from the radio frequency wave received by the antenna 11 and transmit the information to the control module 13. The radio frequency communication module 12 is further configured to generate the radio frequency wave based on the information to be communicated transmitted by the control module 13, and radiate the radio frequency wave to the space through the antenna 11, where the radio frequency wave generated by the radio frequency communication module 12 carries the information to be communicated, and the radio frequency wave radiated by the antenna 11 can be received by other communication units 1. The radio frequency communication module 12 is connected to the antenna 11, and the radio frequency communication module 12 is an RF433 radio frequency communication module 12. The control module 13 is configured to receive or output the information to be communicated. The control module 13 is connected to the radio frequency communication module 12, and the control module 13 may be a processor, a microcontroller, a single chip microcomputer, or the like. In this embodiment, the communication unit 1 formed by the antenna 11, the radio frequency communication module 12 and the control module 13 transmits the state information of the explosion-proof lamp 2 and the control information of the explosion-proof lamp 2 in each node of the explosion-proof lighting system in a 433 radio frequency wireless communication mode, so that the communication stability and the communication distance are good, and the remote control requirement of the lighting device can be adapted.

In one embodiment, referring to fig. 3, the antenna 11 may employ a radio frequency antenna J1; the radio frequency communication module 12 may include: the radio frequency communication chip U2 with the model number SI4463 can adopt a radio frequency communication chip with the model number SI4463TR4-GC, and other series of the radio frequency communication chip SI4463 can be adopted. The VCC pin of the radio frequency communication chip U2 is connected with the power supply 14, the GND pin of the radio frequency communication chip U2 is grounded, and a capacitor C17 and a capacitor C18 which are connected in parallel are connected between the VCC pin and the GND pin of the radio frequency communication chip U2.

In one embodiment, as shown with reference to fig. 3, the control module 13 may include: the microcontroller U1 with the model number of SAMD20G17 can be specifically a microcontroller with the model number of SAMD20G17AU, and can also be other series and models, signals received by the radio-frequency antenna J1 are subjected to identification and amplification processing of a SI4463 radio-frequency communication chip and are changed into binary signals to be sent to the microcontroller U1, and the microcontroller U1 processes the received binary signals according to established protocols and processes information. The RF pin of the radio frequency communication chip U2 is connected with the radio frequency antenna J1. An RX pin of the radio frequency communication chip U2 is connected with a PB23 pin of the microcontroller U1, a TX pin of the radio frequency communication chip U2 is connected with a PB22 pin of the microcontroller U1, and the PB23 pin and the PB22 pin of the microcontroller U1 are not special serial communication pins, so that the RX pin and the TX pin of the radio frequency communication chip U2 can also be connected with other IO function pins of the microcontroller U1.

In one embodiment, referring to fig. 3, the SCK pin, the SDO pin, the SDI pin, and the SEL pin of the rf communication chip U2 are sequentially connected to the PA19 pin, the PA16 pin, the PA18 pin, and the PA17 pin of the microcontroller U1.

An SDN pin of the radio frequency communication chip U2 is connected with a PA25 pin of the microcontroller U1; the IRQ pin of the radio frequency communication chip U2 is connected with the PA20 pin of the microcontroller U1;

an IO0 pin, an IO1 pin, an IO2 pin and an IO3 pin of the radio frequency communication chip U2 are sequentially connected with a PA22 pin, a PA21 pin, a PA23 pin and a PA24 pin of the microcontroller U1.

In one embodiment, as shown with reference to fig. 2 and 3, the communication unit 1 may further include: a power supply 14 and an input-output port 15. The power supply 14 is configured to supply power to the communication unit 1, and the power supply 14 may be a dc power supply with an output voltage of 3.3V. The input/output port 15 is connected to the PB10 pin and the PB11 pin of the microcontroller U1, the input/output port 15 can input information to the microcontroller U1 and can also output information transmitted by the microcontroller U1, the input/output port 15 can include an input port and an output port, accordingly, one of the PB10 pin and the PB11 pin of the microcontroller U1 is used for input, the other pin is used for output, and the terminal P2 in fig. 3 represents the input/output port 15.

In one embodiment, as shown with reference to fig. 2 and 3, the communication unit 1 may further include: a first indicator light 16 and a second indicator light 17. The first indicator light 16 is used to indicate whether the microcontroller U1 is in the receiving state of the information to be communicated, and the light emitting diode D3 in fig. 3 is the first indicator light 16, and when the light emitting diode D3 is on, it may indicate that the microcontroller U1 is in the receiving state of the information to be communicated, and when the light emitting diode D3 is off, it may indicate that the microcontroller U1 is not in the receiving state of the information to be communicated. The second indicator light 17 is used to indicate whether the microcontroller U1 is in the state of sending the information to be communicated, the light emitting diode D4 in fig. 3 is the first indicator light 16, when the light emitting diode D4 is on, it may indicate that the microcontroller U1 is in the state of sending the information to be communicated, and when the light emitting diode D4 is off, it may indicate that the microcontroller U1 is not in the state of sending the information to be communicated. Referring to fig. 3, one end of the first indicator light 16, i.e., the anode of the light emitting diode D3, is connected to the power supply 14 via a current limiting resistor R5, and the other end of the first indicator light 16, i.e., the cathode of the light emitting diode D3, is connected to the pin PA10 of the microcontroller U1. One end of the second indicator light 17, namely the anode of the light emitting diode D4, is connected to the power supply 14 via a current limiting resistor R6, and the other end of the first indicator light 16, namely the cathode of the light emitting diode D4, is connected to the pin PA11 of the microcontroller U1.

Fig. 4 is an example of an application of the communication unit 1 in the explosion-proof lighting system in an embodiment, referring to fig. 4, the communication unit 1 may be configured in each node in the explosion-proof lighting system, the node may be an explosion-proof lamp 2, a gateway 4, a control terminal 3, and the like, transmission of state information of the explosion-proof lamp 2 and control information of the explosion-proof lamp 2 is realized between the nodes through the communication unit 1, the communication unit 1 may achieve simultaneous communication of nearly 100 nodes at maximum, and a farthest communication distance between two nodes may reach 300 m.

The present invention also provides an explosion-proof lighting system, as shown in fig. 5, which in one embodiment may include: at least one explosion-proof lamp 2, a control terminal 3 and a gateway 4. And the control terminal 3 is used for controlling the working state of the explosion-proof lamp 2. The gateway 4 is used for transmitting the control information of the explosion-proof lamp 2 sent by the control terminal 3 to the corresponding explosion-proof lamp 2, so as to control the corresponding explosion-proof lamp 2, and the gateway 4 can also be used for transmitting the received state information of the explosion-proof lamp 2 to the control terminal 3, so that the control terminal 3 can know the current state of the controlled explosion-proof lamp 2. The gateway 4 is connected with the control terminal 3 and the explosion-proof lamp 2. The communication unit 1 of any one of the above embodiments is configured on the explosion-proof lamp 2, the control terminal 3 and the gateway 4, and then 433 wireless radio frequency communication is realized between the control terminal 3 and the gateway 4 through the communication unit 1, and 433 wireless radio frequency communication is realized between the gateway 4 and the explosion-proof lamp 2 through the communication unit 1. The state information of the explosion-proof lamp 2 comprises one or more of switch state information, brightness state information and fault state information, and the control terminal 3 can control the switch and the brightness of the explosion-proof lamp 2, whether an explosion-proof loop is bypassed or not and the like.

In one embodiment, as shown in fig. 6, the system may further comprise a detector 5. The detector 5 is used for detecting the working state of the explosion-proof lamp 2, for example, whether the explosion-proof lamp 2 is in an on state or an off state, the brightness of the explosion-proof lamp 2, whether the explosion-proof lamp 2 fails or not, specific failure information and the like, and the detector 5 is connected with the explosion-proof lamp 2 and can transmit the detected state information of the explosion-proof lamp 2 to the gateway 4 through the communication unit 1 configured on the explosion-proof lamp 2.

In an embodiment, when there are a plurality of explosion-proof lamps 2, each explosion-proof lamp 2 has an ID capable of identifying its own identity and being distinguished from other explosion-proof lamps 2, and transmits the ID of the explosion-proof lamp 2 while transmitting the control information of the explosion-proof lamp 2 or the status information of the explosion-proof lamp 2, so as to transmit the control information of the explosion-proof lamp 2 to the currently controlled explosion-proof lamp 2 and clearly know which explosion-proof lamp 2 the currently acquired status information of the explosion-proof lamp 2 corresponds to.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.