CN211019338U - Street lamp line controller - Google Patents
Street lamp line controller Download PDFInfo
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- CN211019338U CN211019338U CN201921870005.4U CN201921870005U CN211019338U CN 211019338 U CN211019338 U CN 211019338U CN 201921870005 U CN201921870005 U CN 201921870005U CN 211019338 U CN211019338 U CN 211019338U
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Abstract
Street lamp line controller includes: the input end of the power supply module is connected with commercial power; the control module includes: a main control MCU; the extended MCU is connected with the main control MCU and is used for acquiring analog quantity input signals and switching value input signals of external equipment; the RS485 communication unit is connected with the master control MCU, and the master control MCU is in communication connection with the concentrator of the street lamp system through the RS485 communication unit; the relay driving circuit is connected with the master control MCU, and the master control MCU drives the circuit to control the on/off of the street lamp through the relay; and the contactor state feedback input circuit is connected with the master control MCU, and the master control MCU detects the state feedback quantity of the alternating current contactor through the contactor state feedback input circuit. The utility model discloses a street lamp line controller is provided with two MCU, can realize the input of the state quantity of other peripheral hardware among the street lamp lighting system, provides more information foundation for the intelligent management of street lamp system.
Description
Technical Field
The utility model belongs to the technical field of street lamp lighting control system, especially, relate to a controller on street lamp lighting line.
Background
With the continuous progress of scientific technology, city intellectualization has become a development trend, and the intelligent street lamp is used as the best subdivision entrance participating in the construction of the intelligent city, and the trend prediction is natural and very early. Technologies such as wisdom street lamp, internet + thing networking are changing people's life style silently, bring the unprecedented convenience experience for people. With the increase of the popularization of the smart city construction in China, China will continuously insist on the strategy of sustainable development in the future, popularize new energy, develop smart cities and other projects to realize energy saving and environmental protection.
The intelligent street lamp has multiple functions of intelligent illumination, WIFI hot spots, environmental information collection, security and road intelligent monitoring, information distribution, emergency visual alarm, intelligent charging of an electric automobile and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize street lamp lighting system intelligent management's street lamp line control ware better.
In order to achieve the above object, the present invention adopts the following technical solutions:
street lamp line controller includes: the power supply comprises a control module and a power supply module for supplying power to the control module, wherein the input end of the power supply module is connected with commercial power; the control module includes: a main control MCU; the extended MCU is used for acquiring an analog input signal and a switching value input signal of external equipment; the RS485 communication unit is connected with the master control MCU, and the master control MCU is in communication connection with a concentrator of the street lamp system through the RS485 communication unit; the relay driving circuit is connected with the master control MCU, and the master control MCU drives the circuit to control the on/off of the street lamp through the relay; and the contactor state feedback input circuit is connected with the master control MCU, and the master control MCU detects the state feedback quantity of the alternating current contactor through the contactor state feedback input circuit.
More specifically, the control module further comprises a key circuit connected with the main control MCU.
More specifically, the control module further comprises a status display circuit connected with the main control MCU.
More specifically, an input end and/or an output end of the RS485 communication unit is/are provided with an electrostatic protection circuit.
More specifically, the static protection circuit is composed of a transient suppressor and a PTC thermistor, the thermistor is connected in series with the input end and/or the output end of the RS485 communication unit, and the transient suppressor is connected with the thermistor in parallel.
More specifically, the master control MCU and the extended MCU adopt micro control chips with a model number R7F0C902 of the russian company.
More specifically, the power supply module comprises a switching power supply chip, an isolation transformer, a first rectifying circuit, a second rectifying circuit, a first filter circuit, a second filter circuit, a first voltage reduction circuit and a second voltage reduction circuit; the input end of the first rectification circuit is connected with a mains supply, the output end of the first rectification circuit is connected with the input end of the first filter circuit, the output end of the first filter circuit is connected with the input end of the switching power supply chip, the output end of the switching power supply chip is connected with the input end of the isolation transformer, the output end of the isolation transformer is connected with the input end of the second rectification circuit, the output end of the second rectification circuit is connected with the input end of the second filter circuit, the output end of the second filter circuit is connected with the input end of the first voltage reduction circuit, the output end of the first voltage reduction circuit is connected with the input end of the second voltage reduction circuit, and the output end of the second voltage reduction circuit is the output end of the power supply circuit.
More specifically, power module's input still is provided with overvoltage crowbar, overvoltage crowbar includes piezo-resistor, ann rule electric capacity and power inductance, piezo-resistor and ann rule electric capacity connect in parallel between two link of commercial power, power inductance in a link of commercial power with between the first rectifier circuit.
More specifically, the power supply module further comprises a feedback regulation circuit connected with the switching power supply chip; the feedback adjusting circuit comprises a sampling resistor, an optical coupler and a voltage stabilizing chip, wherein two input ends of the optical coupler are respectively connected with an EN/UV pin and a BP/M pin of the switching power supply chip, two output ends of the optical coupler are respectively connected with the output end of the second filter circuit and the input end of the voltage stabilizing chip, and the output end of the voltage stabilizing chip is respectively connected with a signal ground through a resistor and is connected with the output end of the second filter circuit through a resistor.
More specifically, the first rectifying circuit is a full-bridge rectifying circuit composed of 4 rectifying diodes, and/or the second rectifying circuit is composed of a schottky diode and a capacitor.
According to the above technical scheme, the utility model discloses a street lamp line controller is through increasing an extension MCU, be responsible for handling the input of the state quantity of other peripheral hardware in the street lamp lighting system, can expand the collection temperature, illuminance, the water level, analog quantity or switching value data such as chamber door state, for example, the temperature of gathering street lamp control box is as the calamity early warning of power line, gather the liquid level on-off state as flood or electric leakage early warning, gather illuminance as street lamp switch or adjust luminance intensity's foundation etc. provide more information for the intelligent management of street lamp system.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a circuit block diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of the connection between the main control MCU and the extended MCU according to the embodiment of the present invention;
fig. 3 is a circuit diagram of a power circuit according to an embodiment of the present invention;
fig. 4 is a schematic interface diagram according to an embodiment of the present invention.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed Description
Referring to fig. 1 and 2, the street lamp line controller of the embodiment includes a control module and a power module, the power module supplies power to the control module, wherein the control module includes a main control MCU, an extended MCU, an RS485 communication unit connected to the main control MCU, a state display circuit, a key circuit, a relay driver circuit, and a contactor state feedback input circuit, the main control MCU and the extended MCU of the embodiment both employ a micro control chip of R7F0C902, which is manufactured by the ressa corporation, and has 32pin pins, and supports 5V withstand voltage input, the main control MCU controls the relay of the street lamp and detects the state feedback amount of the ac contactor through the relay driver circuit and the contactor state feedback input circuit, respectively, the main control MCU communicates with the concentrator of the street lamp system through an RS485 communication interface, receives an instruction from the concentrator, controls the on/off of the street lamp according to the instruction, and returns the real-time working state of the street lamp to the concentrator, the MCU may also use a key circuit connected thereto to control the on/off of the street lamp manually, the power module includes a power module, a relay module, a contactor, a relay.
The master control MCU is connected with the expansion MCU through a serial port, and the expansion MCU is used for being connected with other peripherals and is responsible for detecting and processing state signals of the other peripherals and receiving input signals of analog quantity and switching value. For example, the expansion MCU is connected with a temperature sensor, a water level sensor, a box door state sensor, an illumination sensor and the like. The extended MCU of this embodiment can receive input signals of 8-way analog quantity and 1-way switching quantity, and can transmit analog quantity or switching quantity data of street lamp equipment, such as temperature, illuminance, water level, and door state, into the street lamp management system.
The RS485 communication unit of the embodiment adopts an RS485 communication chip with the model of AZRS485 of the Yan Jing company, and the chip has the advantages of antistatic property up to 18KV and good compatibility. In order to realize the anti-static protection, an input end and an output end of the RS485 communication unit can be respectively provided with a static protection circuit. Specifically, the static protection circuit is composed of a transient suppressor and a PTC thermistor, the thermistor is connected in series with the input/output end of the RS485 communication unit, and the transient suppressor is connected in parallel with the thermistor, so that the static protection is realized, and the MCU is prevented from being burnt out by static overvoltage of a 485 port. An MOS tube circuit can be connected between the main control MCU and the RS485 communication unit.
As shown in figure 3, the power module comprises a switching power supply chip arranged on a circuit board, an isolation transformer, a first rectifying circuit, a second rectifying circuit, a first filter circuit, a second filter circuit, a first voltage reduction circuit and a second voltage reduction circuit, wherein the input end of the first rectifying circuit is connected with 220V mains supply, the first rectifying circuit of the embodiment adopts a full-bridge rectifying mode formed by 4 rectifying diodes to convert alternating mains supply into direct current, an overvoltage protection circuit is further arranged at the input end of the power module (the input end of the first rectifying circuit), the overvoltage protection circuit comprises a piezoresistor, a safety capacitor and a power inductor, the piezoresistor and the safety capacitor are connected in parallel between two connection ends (U L and UN) of the mains supply, a power inductor is connected in series between one connection end (U L) of the mains supply and the first rectifying circuit, the output end of the first rectifying circuit is connected with the first filter circuit, the output end of the first filter circuit is connected with the input end of the switching power supply chip, and the direct current is rectified by the first rectifying circuit and then is input into the first low-pass switching power supply.
The output end of the isolation transformer is connected with a second rectification circuit, the second rectification circuit of the embodiment is composed of a Schottky diode and a capacitor, secondary rectification is performed by adopting a Schottky diode SS110, meanwhile, a diode RC circuit (capacitor) is connected in parallel with two ends of the diode, the diode can be prevented from being damaged by pulse voltage of the transformer, the output end of the second rectification circuit is connected with a second filter circuit, the input end of the second filter circuit is connected with a first voltage reduction circuit, after secondary rectification is performed on voltage by the second rectification circuit, the second filter circuit performs smooth filtering on the voltage, a 12V power supply is connected with a second voltage reduction circuit to output 5V, the control module and a second power supply circuit thereof are connected with a second voltage reduction circuit through a first voltage reduction circuit and a second voltage reduction circuit which are sequentially connected, the second filter circuit performs smooth filtering on the voltage, the 12V power supply is connected with a second voltage reduction circuit to output end of a stabilized voltage regulation circuit (A-B), the output end of the second filter circuit is connected with a stabilized voltage regulation circuit, the output end of an optical coupling circuit, the power supply circuit comprises two optical coupling voltage regulation circuit (A-B) circuits, the power supply circuit, the output end of an optical coupling circuit, the power supply circuit is connected with a stabilized voltage regulation circuit, the output end of an optical coupling circuit, the power supply circuit, the output end of the power supply circuit comprises a stabilized voltage regulation circuit, the output end of an optical coupling circuit, the coupling.
Fig. 4 is an interface diagram of the street lamp line controller according to the embodiment, as shown in fig. 4, the street lamp line controller includes an RS485 interface of a 5V level, which is compatible with RS485 bus communication of a 5V or 3.3V level, has 5-channel ac output control, an inductive load current carrying capacity of each channel is 2A, has 5 channels dedicated for auxiliary contact state acquisition of a contactor, has 1-channel switching value acquisition, a total load should not exceed 3W, has 8-channel analog value acquisition, a total load should not exceed 3W, and further includes a key channel switch of 5 relays and L ED channel display of 5 street lamp lines on a panel, an automatic control L ED lamp in a manual and RS485 command mode, a power indicator lamp, a status indicator lamp of RS485 communication, and a manual or automatic control status indicator lamp.
The utility model discloses a street lamp line controller is through setting up two MCU, the switch by master control MCU drive relay controls the street lamp circuit, and the real-time operating condition of receiving ac contactor shows the state on line controller's panel and passback gives street lamp control system, use other peripheral hardware signals among the extension MCU collection street lamp control system, with realize the temperature, illuminance, the power supply state, water level alarm, a plurality of simulation/switching value collection such as door magnetism detection, satisfy intelligent street lamp control and safe requirement.
Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalents are intended to be encompassed by the following claims.
Claims (10)
1. Street lamp line controller includes: the power supply comprises a control module and a power supply module for supplying power to the control module, wherein the input end of the power supply module is connected with commercial power;
characterized in that the control module comprises:
a main control MCU;
the extended MCU is connected with the master control MCU and is used for acquiring analog input signals and switching value input signals of external equipment;
the RS485 communication unit is connected with the master control MCU, and the master control MCU is in communication connection with a concentrator of the street lamp system through the RS485 communication unit;
the relay driving circuit is connected with the master control MCU, and the master control MCU drives the circuit to control the on/off of the street lamp through the relay;
and the contactor state feedback input circuit is connected with the master control MCU, and the master control MCU detects the state feedback quantity of the alternating current contactor through the contactor state feedback input circuit.
2. The street lamp line controller of claim 1, wherein: the control module also comprises a key circuit connected with the main control MCU.
3. The street lamp line controller according to claim 1 or 2, characterized in that: the control module also comprises a state display circuit connected with the main control MCU.
4. The street lamp line controller of claim 1, wherein: and the input end and/or the output end of the RS485 communication unit is/are provided with an electrostatic protection circuit.
5. The street lamp line controller of claim 4, wherein: the static protection circuit is composed of a transient suppressor and a PTC thermistor, the thermistor is connected in series with the input end and/or the output end of the RS485 communication unit, and the transient suppressor is connected in parallel with the thermistor.
6. The street lamp line controller of claim 1, wherein: the master control MCU and the extension MCU adopt micro control chips with the model of R7F0C902 of the Thysasa company.
7. The street lamp line controller of claim 1, wherein: the power supply module comprises a switching power supply chip, an isolation transformer, a first rectifying circuit, a second rectifying circuit, a first filter circuit, a second filter circuit, a first voltage reduction circuit and a second voltage reduction circuit;
the input end of the first rectification circuit is connected with a mains supply, the output end of the first rectification circuit is connected with the input end of the first filter circuit, the output end of the first filter circuit is connected with the input end of the switching power supply chip, the output end of the switching power supply chip is connected with the input end of the isolation transformer, the output end of the isolation transformer is connected with the input end of the second rectification circuit, the output end of the second rectification circuit is connected with the input end of the second filter circuit, the output end of the second filter circuit is connected with the input end of the first voltage reduction circuit, the output end of the first voltage reduction circuit is connected with the input end of the second voltage reduction circuit, and the output end of the second voltage reduction circuit is the output end of the power supply circuit.
8. The street lamp line controller of claim 7, wherein: the input of power module is provided with overvoltage crowbar, overvoltage crowbar includes piezo-resistor, ann rule electric capacity and power inductance, piezo-resistor and ann rule electric capacity connect in parallel between two link of commercial power, power inductance in a link of commercial power with between the first rectifier circuit.
9. The street lamp line controller of claim 7, wherein: the power supply module further comprises a feedback adjusting circuit connected with the switching power supply chip, the feedback adjusting circuit comprises a sampling resistor, an optical coupler and a voltage stabilizing chip, two input ends of the optical coupler are respectively connected with an EN/UV pin and a BP/M pin of the switching power supply chip, two output ends of the optical coupler are respectively connected with an output end of the second filter circuit and an input end of the voltage stabilizing chip, and an output end of the voltage stabilizing chip is respectively connected with a signal ground through a resistor and is connected with an output end of the second filter circuit through a resistor.
10. The street lamp line controller of claim 7, wherein: the first rectifying circuit is a full-bridge rectifying circuit consisting of 4 rectifying diodes, and/or the second rectifying circuit is composed of a Schottky diode and a capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870005.4U CN211019338U (en) | 2019-11-01 | 2019-11-01 | Street lamp line controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870005.4U CN211019338U (en) | 2019-11-01 | 2019-11-01 | Street lamp line controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211019338U true CN211019338U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921870005.4U Active CN211019338U (en) | 2019-11-01 | 2019-11-01 | Street lamp line controller |
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| Country | Link |
|---|---|
| CN (1) | CN211019338U (en) |
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2019
- 2019-11-01 CN CN201921870005.4U patent/CN211019338U/en active Active
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