CN212649764U - Communication module and lamp integrated controller - Google Patents
Communication module and lamp integrated controller Download PDFInfo
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- CN212649764U CN212649764U CN202021237757.XU CN202021237757U CN212649764U CN 212649764 U CN212649764 U CN 212649764U CN 202021237757 U CN202021237757 U CN 202021237757U CN 212649764 U CN212649764 U CN 212649764U
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Abstract
The utility model relates to a communication module and lamps and lanterns centralized control ware, communication module include WIFI radio frequency module, WIFI impedance matching module, NB-IOT radio frequency module, NB-IOT impedance matching module, dual-band duplexer, and the antenna, dual-band duplexer one end and antenna connection, the other end respectively with WIFI impedance matching module, and NB-IOT impedance matching module connection; the WIFI radio frequency module is connected with the WIFI impedance matching module, and the NB-IOT radio frequency module is connected with the NB-IOT impedance matching module; when the dual-band duplexer receives a radio-frequency signal from the antenna, the dual-band duplexer is configured to identify whether the radio-frequency signal is a WIFI signal or an NB-IOT signal according to the frequency spectrum difference; the WIFI impedance matching module and the NB-IOT impedance matching module are configured to achieve impedance matching of the radio frequency signals. Through the combination of the two paths of signals, the radio frequency signal can be radiated through one antenna, and the system application with simplicity, low cost and low installation complexity is further completed.
Description
Technical Field
The utility model belongs to the road lighting field, concretely relates to road lighting controller.
Background
The road lighting wireless control equipment is more in types, and is common as follows: the NB IOT wireless controller, the Zigbee wireless controller, and the ISM frequency band wireless controller do not usually have a short-range wireless communication capability or the short-range wireless communication needs another antenna, that is, long-range communication and short-range communication respectively need an antenna, and especially work in the controller in the street light pole, the antenna needs to be led out to the outside of the lamp pole.
The road lighting wireless terminal device generally needs to be installed in a hidden position, for example, the wireless terminal device installed inside a lamp post generally needs to lead out a communication signal to the outside of the lamp post, and the conventional wireless terminal device only has a long-distance communication capability of communicating with a cloud end, and if a short-distance wireless communication capability is added on the basis of the long-distance communication capability, a short-distance wireless communication radio frequency needs to be added.
Fig. 1 is a schematic circuit structure diagram of two paths of radio frequency signals of a communication module of an existing street lamp centralized controller. As shown in fig. 1, the NB IOT radio frequency module outputs to the radio frequency port through the matching circuit (which includes capacitors C1, C2, and inductor L1), and then connects to a radio frequency feeder RF cable to an antenna; the WIFI radio frequency module outputs the radio frequency signals to a radio frequency port through a matching circuit (comprising capacitors C3, C4 and an inductor L2), and then a radio frequency feeder RF cable is connected to an antenna. Two-way radio frequency ports are required to be used for integrally realizing two-way communication, two RF cables are connected, and then the two RF cables are respectively connected to two antennas. The installation of 2 antennas in the controller will result in high cost, complex construction, low reliability and other disadvantages.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose, solve two antennas of installation among the prior art in the controller at least and lead to the cost to rise, the construction is complicated, and one of the low scheduling problem of reliability provides a neotype communication module, lamps and lanterns centralized control ware to and wisdom lamps and lanterns control system.
The technical scheme of the utility model one: a communication module comprises a WIFI radio frequency module, a WIFI impedance matching module, an NB-IOT radio frequency module, an NB-IOT impedance matching module, a dual-band duplexer and an antenna; one end of the dual-band duplexer is connected with the antenna, and the other end of the dual-band duplexer is respectively connected with the WIFI impedance matching module and the NB-IOT impedance matching module; the WIFI radio frequency module is connected with the WIFI impedance matching module, and the NB-IOT radio frequency module is connected with the NB-IOT impedance matching module; when the dual-band duplexer receives a radio-frequency signal from the antenna, the dual-band duplexer is configured to identify whether the radio-frequency signal is a WIFI signal or an NB-IOT signal according to the frequency spectrum difference; the WIFI impedance matching module and the NB-IOT impedance matching module are configured to achieve impedance matching of the radio frequency signals.
Furthermore, a radio frequency feeder line is connected between the antenna and the dual-band duplexer.
Further, the dual-band duplexer is provided with a common port, a low-frequency port and a high-frequency port.
Further, the public port inputs radio frequency signals from an antenna; the low-frequency port outputs NB-IOT radio frequency signals; and the high-frequency port outputs a WIFI radio frequency signal.
Further, the channel between the public port and the low-frequency port has small loss on NB-IOT radio frequency signals and large loss on WIFI radio frequency signals; and the channel between the public port and the high-frequency port has small loss on WIFI radio frequency signals and large loss on NB-IOT radio frequency signals.
The technical scheme of the utility model two: a lamp centralized controller comprises a microprocessor, a memory, a clock circuit and the communication module, wherein the microprocessor is respectively and electrically connected with the memory, the clock circuit and the communication module; the clock circuit is configured to provide a real-time calendar clock function for the microprocessor and provide a clock reference for the lamp integrated controller to realize an intelligent dimming strategy; the memory is configured to store lamp centralized controller data information.
Furthermore, the lamp integrated controller also comprises a switching value input circuit, an electrical parameter acquisition metering circuit and a loop control circuit; the electric parameter acquisition metering circuit is configured to acquire electric power information of each loop, send the acquired electric power information to the microprocessor, and judge whether abnormality exists by the microprocessor; the switching value input circuit is configured to collect an external input dry contact signal, send the collected signal to the microprocessor and judge whether an abnormality exists by the microprocessor; and the loop control circuit is configured to receive a control command of the microprocessor, output a switch control signal and control the on-off of the external contactor to realize loop on-off control.
Further, the power information includes one or more of the following information: voltage, current, power, electrical energy.
Further, the external input dry contact signal comprises one or more of the following information: a water immersion sensor, a door magnetic sensor, a manual and automatic replacement switch and a contactor action feedback.
Further, the lamp integrated controller further comprises a display circuit; the display circuit is configured to display device information to a user and receive input information from the user.
The utility model has the advantages that: the utility model provides a NB IOT and WIFI signal way make usually with the wireless WIFI signal of low coverage and remote wireless NB IOT signal, mix the back and close into radio frequency signal of the same kind by two way, can use in the wireless controller that has WIFI near field communication. Through the combination of the two paths of signals, the radio frequency signal can be radiated through one antenna, and the system application with simplicity, low cost and low installation complexity is further completed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and 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 these drawings without inventive effort.
Fig. 1 is a schematic circuit structure diagram of two paths of radio frequency signals of a communication module of a conventional street lamp integrated controller;
fig. 2 is a schematic structural diagram of a communication module of a preferred road lighting controller according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal circuit of a communication module of a preferred road lighting controller according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of a preferred dual-band duplexer in an embodiment of the present invention;
fig. 5 is a schematic diagram of insertion loss of low frequency and high frequency of a preferred dual band duplexer according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an internal structure of a preferred road lighting controller according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a preferred intelligent street lamp control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be further explained with reference to the accompanying drawings.
Example one
Fig. 2 is a schematic structural diagram of a communication module of a road lighting controller according to an embodiment of the present invention.
As shown in fig. 2, the communication module 1 of the road lighting controller includes a WIFI radio frequency module 11, a WIFI impedance matching module 13, an NB-IOT impedance matching module 14, a dual-band duplexer 15, and an antenna 16. The WIFI radio frequency module 11 is connected with the WIFI impedance matching module 13, the NB-IOT radio frequency module 12 is connected with the NB-IOT impedance matching module 14, one end of the dual-band duplexer 15 is connected with the WIFI impedance matching module 13 and the NB-IOT impedance matching module 14 respectively, and the other end of the dual-band duplexer 15 is connected with the antenna 16.
Fig. 3 is a schematic diagram of an internal circuit of a communication module of a road lighting controller according to an embodiment of the present invention.
As shown in fig. 2-3, a radio frequency feeder is disposed between the dual-band duplexer 15 and the antenna 16, after the antenna 16 receives a radio frequency signal, the antenna 16 sends the received radio frequency signal to the dual-band duplexer 15 through the radio frequency feeder, the dual-band duplexer 15 determines whether the radio frequency signal belongs to a WIFI signal or an NB-IOT signal, and if the radio frequency signal is a WIFI signal, the radio frequency signal is sent to the WIFI impedance matching module 13 to perform impedance matching on the WIFI signal, specifically, in fig. 3, the WIFI signal is subjected to impedance matching with 50 Ω through matching elements C7, C8, and L4, and after the impedance matching is completed, the WIFI impedance matching module 13 sends the WIFI signal to the WIFI radio frequency module 11 to be processed.
If the NB-IOT signal is an NB-IOT signal, the NB-IOT impedance matching module 14 sends the NB-IOT signal to perform impedance matching on the NB-IOT signal, specifically, in fig. 3, the NB-IOT signal passes through matching elements C5, C6, and L3 to complete 50 Ω impedance matching with the NB-IOT radio frequency module 12, and after the impedance matching is completed, the NB-IOT impedance matching module 14 sends the NB-IOT signal to the NB-IOT module 12 to be processed. The communication module of the road lighting controller in fig. 2-3 realizes simultaneous transceiving communication of NB-IOT and WIFI through one antenna.
Fig. 4 is the internal structure schematic diagram of the dual-band duplexer preferred by the embodiment of the present invention, and fig. 5 is the insertion loss schematic diagram of the low frequency and the high frequency of the dual-band duplexer preferred by the embodiment of the present invention.
As shown in fig. 4-5, the dual band duplexer 15 has three rf ports, a High-band port being a High frequency port, a Low-band port being a Low frequency port, and a common port being a common port common to both Low and High frequencies. The frequency ranges of the commonly used B3, B5 and B8 frequency BANDs of the NB-IOT signal are 800-1850 MHz, and the frequency range of the WIFI frequency BAND is 2400-2500 MHz, so that as can be seen from a LOW-frequency Insertion Loss LOW-BAND Insertion Loss curve of the dual-BAND duplexer 15 in FIG. 5, the Loss of the common port and the LOW-frequency port is about-0.5 dB, which indicates that the Loss of the common port and the LOW-frequency port is very small, and the Loss of the 2400-2500 MHz signal of the WIFI signal is-16 dB, which indicates that the WIFI signal is difficult to be transmitted from the common port to the LOW-frequency port, and only the NB-IOT signal can be transmitted from the common port to the LOW-frequency port; similarly, as can be seen from the HIGH-frequency Insertion Loss HIGH-BAND Insertion Loss curve of the dual-BAND duplexer 15 in fig. 5, the Loss of the common port and the HIGH-frequency port HIGH-BAND port is about-0.8 dB, which indicates that the Loss of the common port and the HIGH-frequency port HIGH-BAND port is very small, and the signal Loss of 800-1850 MHz for NB-IOT is more than-16 dB, which indicates that the NB-IOT signal is difficult to transmit from the common port to the HIGH-frequency port HIGH-BAND port, and only the WIFI signal is transmitted from the common port to the HIGH-frequency port HIGH-BAND port. Therefore, the radio frequency signals passing through the dual-frequency duplexer 15 can be screened out to be WIFI signals or NB-IOT signals, the dual-frequency duplexer 15 completes the combined communication of the NB-IOT signals and the WIFI signals, the NB-IOT signals and the WIFI signals are not influenced mutually, and the NB-IOT signals and the WIFI signals work independently.
Fig. 6 is a schematic diagram of an internal structure of a preferred road lighting controller according to an embodiment of the present invention.
As shown in fig. 1, the centralized street lamp controller 2 includes a microprocessor 21, a display circuit 22, a communication module 1, a clock circuit 25, a memory 26, an electrical parameter acquisition and measurement circuit 27, a switching value input circuit 23, and a loop control circuit 24. The display circuit 22, the communication module 1, the clock circuit 25, the memory 26, the electrical parameter acquisition and measurement circuit 27, the switching value input circuit 23, and the loop control circuit 24 are electrically connected to the microprocessor 21.
And the microprocessor 21 is configured to realize control of the street lamp centralized controller 2.
The display circuit 22, preferably a touch display, may be used to display device information to a user, and also may be used to receive input information of the user, and the user may query actual status, parameter information, and the like of the centralized controller of the street lamp through the display circuit 22.
The communication module 1 uses the communication modules in fig. 2 to 3, the NB-IOT radio frequency module 12 and the WIFI radio frequency module 11 are arranged in the communication module 1, and the NB-IOT radio frequency module 12 and the WIFI radio frequency module 11 transmit and receive signals through the antenna.
And the clock circuit 25 is configured to provide a real-time calendar clock function for the microprocessor 21, and provide a clock reference for the street lamp centralized controller 2 to implement the intelligent dimming strategy.
The memory 26 is configured to store configuration information of the street lamp centralized controller 2, and the like.
The electric parameter acquisition metering circuit 27 is configured to acquire information of three-phase voltage, current, power, electric energy and the like of each loop, send the acquired information to the microprocessor 21, and judge whether abnormality exists or not by the microprocessor 21 and whether alarm information needs to be sent to the remote control platform 3 or not.
The switching value input circuit 23 is configured to collect external input dry contact signals such as a water sensor, a door sensor, a manual/automatic change switch, a contactor action feedback and the like, send the collected information to the microprocessor 21, and judge whether an abnormality exists or not by the microprocessor 21 and whether an alarm information needs to be sent to a background or not.
And the loop control circuit 24 is configured to receive a control command of the microprocessor 21, output a switch control signal, and control the on-off of the external contactor to realize loop switch control.
Fig. 7 is a schematic diagram of a preferred intelligent street lamp control system according to an embodiment of the present invention.
As shown in fig. 7, the intelligent street lamp control system includes a management service platform 3, a base station 4, and a street lamp centralized controller 2. Wherein, be provided with a plurality of basic stations 4 under one management service platform 3, for example basic station 4A, basic station 4B, basic station 4C etc. are provided with a plurality of street lamp centralized control ware 2A below one basic station 4, street lamp centralized control ware 2B, street lamp centralized control ware 2C, street lamp centralized control ware 2D etc.. The base station 4 and the street lamp centralized controller 2 can be connected through an NB-IoT communication network, and the street lamp centralized controller 2 can be connected through a WIFI network.
When a plurality of street lamp centralized controllers 2 communicate with a management service platform 3, a certain street lamp centralized controller 2 can be selected as a network bridge node, when the management service platform 3 has messages to be sent to the plurality of street lamp centralized controllers 2, the messages of the plurality of street lamp centralized controllers 2 can be packaged, the messages are sent to the selected network bridge node through an NB-IOT network, and then the messages are sent to other street lamp centralized controllers 2 through WIFI networks by the network bridge node.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A communication module comprises a WIFI radio frequency module, a WIFI impedance matching module, an NB-IOT radio frequency module, an NB-IOT impedance matching module, a dual-band duplexer and an antenna, and is characterized in that,
one end of the dual-band duplexer is connected with the antenna, and the other end of the dual-band duplexer is respectively connected with the WIFI impedance matching module and the NB-IOT impedance matching module;
the WIFI radio frequency module is connected with the WIFI impedance matching module, and the NB-IOT radio frequency module is connected with the NB-IOT impedance matching module;
when the dual-band duplexer receives a radio-frequency signal from the antenna, the dual-band duplexer is configured to identify whether the radio-frequency signal is a WIFI signal or an NB-IOT signal according to the frequency spectrum difference;
the WIFI impedance matching module and the NB-IOT impedance matching module are configured to achieve impedance matching of the radio frequency signals.
2. The communication module of claim 1,
and a radio frequency feeder line is connected between the antenna and the dual-band duplexer.
3. The communication module of claim 1,
the dual-band duplexer is provided with a common port, a low-frequency port and a high-frequency port.
4. The communication module of claim 3,
the public port inputs radio frequency signals from an antenna;
the low-frequency port outputs NB-IOT radio frequency signals;
and the high-frequency port outputs a WIFI radio frequency signal.
5. The communication module of claim 4,
the channel between the public port and the low-frequency port has small loss on NB-IOT radio frequency signals and large loss on WIFI radio frequency signals;
and the channel between the public port and the high-frequency port has small loss on WIFI radio frequency signals and large loss on NB-IOT radio frequency signals.
6. A centralized light fixture controller comprising a microprocessor, a memory, a clock circuit, and the communication module of any of claims 1-5,
the microprocessor is electrically connected with the memory, the clock circuit and the communication module respectively;
the clock circuit is configured to provide a real-time calendar clock function for the microprocessor and provide a clock reference for the lamp integrated controller to realize an intelligent dimming strategy;
the memory is configured to store lamp centralized controller data information.
7. The centralized light fixture controller of claim 6,
the lamp integrated controller also comprises a switching value input circuit, an electrical parameter acquisition metering circuit and a loop control circuit;
the electric parameter acquisition metering circuit is configured to acquire electric power information of each loop, send the acquired electric power information to the microprocessor, and judge whether abnormality exists by the microprocessor;
the switching value input circuit is configured to collect an external input dry contact signal, send the collected signal to the microprocessor and judge whether an abnormality exists by the microprocessor;
and the loop control circuit is configured to receive a control command of the microprocessor, output a switch control signal and control the on-off of the external contactor to realize loop on-off control.
8. The centralized light fixture controller of claim 7,
the power information comprises one or more of the following information: voltage, current, power, electrical energy.
9. The centralized light fixture controller of claim 7,
the external input dry contact signal comprises one or more of the following information:
a water immersion sensor, a door magnetic sensor, a manual and automatic replacement switch and a contactor action feedback.
10. The centralized light fixture controller of claim 6,
the lamp centralized controller also comprises a display circuit;
the display circuit is configured to display device information to a user and receive input information from the user.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021237757.XU CN212649764U (en) | 2020-06-29 | 2020-06-29 | Communication module and lamp integrated controller |
| PCT/CN2021/101427 WO2022001743A1 (en) | 2020-06-29 | 2021-06-22 | Communication module, light-fixture centralized controller, and intelligent light-fixture control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021237757.XU CN212649764U (en) | 2020-06-29 | 2020-06-29 | Communication module and lamp integrated controller |
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| CN212649764U true CN212649764U (en) | 2021-03-02 |
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| CN202021237757.XU Active CN212649764U (en) | 2020-06-29 | 2020-06-29 | Communication module and lamp integrated controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001743A1 (en) * | 2020-06-29 | 2022-01-06 | 苏州欧普照明有限公司 | Communication module, light-fixture centralized controller, and intelligent light-fixture control system |
| CN113939069A (en) * | 2020-06-29 | 2022-01-14 | 欧普照明股份有限公司 | Communication module, lamps and lanterns centralized control ware to and wisdom lamps and lanterns control system |
-
2020
- 2020-06-29 CN CN202021237757.XU patent/CN212649764U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001743A1 (en) * | 2020-06-29 | 2022-01-06 | 苏州欧普照明有限公司 | Communication module, light-fixture centralized controller, and intelligent light-fixture control system |
| CN113939069A (en) * | 2020-06-29 | 2022-01-14 | 欧普照明股份有限公司 | Communication module, lamps and lanterns centralized control ware to and wisdom lamps and lanterns control system |
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