CN212727493U

CN212727493U - Double-lamp controller for street lamp nodes

Info

Publication number: CN212727493U
Application number: CN202021659706.6U
Authority: CN
Inventors: 莫志承; 梁文威; 叶靖仪
Original assignee: Guangdong Aoling Technology Co ltd
Current assignee: Guangdong Aoling Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-16
Anticipated expiration: 2030-08-11

Abstract

The utility model provides a street lamp node double-lamp controller, two LED lamps are respectively connected with the same Zigbee circuit through a current sampling circuit and a voltage sampling circuit, the current sampling circuit and the voltage sampling circuit are respectively used for collecting working current signals and voltage signals in each LED lamp and transmitting the working current signals and the voltage signals to the Zigbee circuit for AD detection; the Zigbee circuit is used for receiving an instruction sent by the monitoring terminal, is responsible for a Zigbee communication function, acquires current and voltage data in each LED lamp, generates a PWM (pulse width modulation) signal and adjusts the light of the LED lamp through the light adjusting circuit; meanwhile, the Zigbee circuit can also send current data and voltage data of each LED lamp to the monitoring terminal, has the function of warning that the current and the voltage exceed the set range, and realizes the purpose of simultaneously monitoring the working states of two LED lamps by utilizing one Zigbee circuit through the closed-loop control of the street lamps by analyzing the data of the current and the voltage in the LED lamps.

Description

Double-lamp controller for street lamp nodes

Technical Field

The utility model relates to a street lamp controller technical field especially relates to a two lamp controllers of street lamp node.

Background

The existing intelligent street lamp system only simply uses the Zigbee module to perform simple wireless control on the street lamp, such as lamp switching, dimming and other operations, and each LED lamp needs one Zigbee module to control, so that the cost is higher for multiple heads; in addition, the existing intelligent street lamp system does not collect the working current data, the voltage data and the like of the street lamp, and does not perform closed-loop control on the whole system, namely, the control state of the street lamp cannot be known, and the information of whether the street lamp to be controlled is really controlled, whether the street lamp to be controlled works normally, whether the street lamp has a fault and the like cannot be known.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one among the above-mentioned technical problem, the utility model provides a street lamp node double lamp controller not only can intelligent dimming, and operating current, the voltage data that can also in time monitor the street lamp have current-voltage alarming function, realize utilizing a Zigbee circuit to monitor the operating condition of two LED lamps simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a street light node dual lamp controller comprising:

the input end of the first current sampling circuit is connected with the power supply input end of the first LED lamp, and the output end of the first current sampling circuit is connected with the ZigBee circuit and is used for collecting working current signals in the first LED lamp and transmitting the working current signals to the ZigBee circuit to detect the effective value of the current flowing through the first LED lamp;

the input end of the second current sampling circuit is connected with the power supply input end of the second LED lamp, and the output end of the second current sampling circuit is connected with the ZigBee circuit and is used for collecting working current signals in the second LED lamp and transmitting the working current signals to the ZigBee circuit to detect the effective value of the current flowing through the second LED lamp;

the input end of the first voltage sampling circuit is connected with the power supply input end of the first LED lamp, and the output end of the first voltage sampling circuit is connected with the ZigBee circuit and is used for collecting working voltage signals in the first LED lamp and transmitting the working voltage signals to the ZigBee circuit to detect a voltage effective value connected into the first LED lamp;

the input end of the second voltage sampling circuit is connected with the power supply input end of the second LED lamp, and the output end of the second voltage sampling circuit is connected with the ZigBee circuit and is used for collecting working voltage signals in the second LED lamp and transmitting the working voltage signals to the ZigBee circuit to detect a voltage effective value connected to the second LED lamp;

the input end of the Zigbee circuit is respectively connected with the first current sampling circuit, the second current sampling circuit, the first voltage sampling circuit and the second voltage sampling circuit, the output end of the Zigbee circuit is respectively connected with the first dimming circuit and the second dimming circuit, and the Zigbee circuit is connected with the monitoring terminal and used for receiving the instruction sent by the monitoring terminal and sending current and voltage data in the first LED lamp and the second LED lamp to the monitoring terminal;

the input end of the first dimming circuit is connected with the Zigbee circuit, and the output end of the first dimming circuit is connected with the dimming control end of the first LED lamp and is used for adjusting the brightness of the first LED lamp;

the input end of the second dimming circuit is connected with the Zigbee circuit, and the output end of the second dimming circuit is connected with the dimming control end of the second LED lamp and is used for adjusting the brightness of the second LED lamp;

the input end of the voltage stabilizing circuit is respectively connected with the first voltage sampling circuit and the second voltage sampling circuit, and the output end of the voltage stabilizing circuit is respectively connected with the ZigBee circuit, the first dimming circuit and the second dimming circuit and used for providing working voltage for the ZigBee circuit, the first dimming circuit and the second dimming circuit;

according to the utility model discloses an at least one embodiment, monitor terminal is connected with street lamp power supply, and after monitor terminal sent the circular telegram instruction for street lamp power supply, street lamp power supply was first LED lamp and second LED lamp power supply.

According to the utility model discloses an at least one embodiment, two power input ends of second LED lamp respectively external one are used for the wiring mouth of being connected with the power input end of first LED lamp.

According to at least one embodiment of the present invention, the Zigbee circuit includes a CC2530 chip and its peripheral circuits; the CC2530 chip is respectively coupled with the first current sampling circuit, the second current sampling circuit, the first voltage sampling circuit and the second voltage sampling circuit and is in wireless connection with the monitoring terminal.

According to at least one embodiment of the present invention, in the first current sampling circuit and the second current sampling circuit, any one of the current sampling circuits includes an ac transformer, a first resistor, and a diode; the input end of the alternating current transformer is connected with the power input end of the LED lamp corresponding to the current sampling circuit, and the output end of the alternating current transformer is connected into the Zigbee circuit through the first resistor and the diode in sequence.

According to at least one embodiment of the present invention, in the first voltage sampling circuit and the second voltage sampling circuit, any one of the voltage sampling circuits includes a transformer, a rectifier bridge, a second resistor, and a third resistor; the input end of the transformer is connected with the power input end of the LED lamp corresponding to the voltage sampling circuit, the output end of the transformer is connected with a voltage reduction circuit formed by connecting a second resistor and a third resistor in series through a rectifier bridge, and the voltage reduction circuit is connected into the Zigbee circuit.

According to at least one embodiment of the present invention, in the first dimming circuit and the second dimming circuit, any one of the dimming circuits includes a fourth resistor, a fifth resistor, and a triode; one end of the fourth resistor is connected with the Zigbee circuit, the other end of the fourth resistor is connected with the fifth resistor through the triode, and the dimming control end of the LED lamp corresponding to the dimming circuit is connected between the triode and the fifth resistor.

According to at least one embodiment of the present invention, the voltage stabilizing circuit includes a first voltage stabilizing circuit and a second voltage stabilizing circuit; the input end of the first voltage stabilizing circuit is connected with the voltage sampling circuit and is converted into a 10V PWM signal to be output; the input end of the second voltage stabilizing circuit is connected with the first voltage stabilizing circuit and is converted into 3.3V direct current for output.

According to at least one embodiment of the present invention, the first voltage stabilizing circuit includes a diode, a first capacitor, a second capacitor, a third capacitor, a sixth resistor, a seventh resistor, and a first three-terminal regulator; the diode is connected with a second voltage stabilizing circuit through a first three-terminal voltage stabilizer; the input end of the first three-terminal voltage stabilizer is grounded through a first capacitor, and the output end of the first three-terminal voltage stabilizer is grounded through a second capacitor and a third capacitor respectively; the output end of the first three-terminal voltage stabilizer is grounded through a sixth resistor and a seventh resistor in sequence.

According to at least one embodiment of the present invention, the second voltage stabilizing circuit includes a second three-terminal regulator, a fourth capacitor and a fifth capacitor; the input end of the second three-terminal voltage stabilizer is connected with the first voltage stabilizing circuit, and the output end of the second three-terminal voltage stabilizer is grounded through the fourth capacitor and the fifth capacitor respectively.

Compared with the prior art, the utility model has the advantages that:

the utility model discloses a street lamp node double-lamp controller, two LED lamps are respectively connected with the same Zigbee circuit through current sampling circuit and voltage sampling circuit, and the current sampling circuit and the voltage sampling circuit are respectively used for collecting working current signals and voltage signals in each LED lamp and transmitting the working current signals and voltage signals to the Zigbee circuit for AD detection; the Zigbee circuit is used for receiving an instruction sent by the monitoring terminal, is responsible for a Zigbee communication function, acquires current and voltage data in each LED lamp, generates a PWM (pulse width modulation) signal and adjusts the light of the LED lamp through the light adjusting circuit; meanwhile, the Zigbee circuit can also send current data and voltage data of each LED lamp to the monitoring terminal, has the function of warning that the current and the voltage exceed the set range, and realizes the purpose of simultaneously monitoring the working states of two LED lamps by utilizing one Zigbee circuit through the closed-loop control of the street lamps by analyzing the data of the current and the voltage in the LED lamps. In addition, the interface is arranged between the two LED lamps, so that connection and disconnection of the contact between the two lamps can be arranged, the two LED lamps can be supplied with power independently or in a combined mode, and cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a block diagram of a circuit module of a street lamp node dual-lamp controller of the present invention.

Fig. 2 is a schematic circuit diagram of a first current sampling circuit, a first voltage sampling circuit, a second current sampling circuit, a second voltage sampling circuit and a voltage stabilizing circuit in a street lamp node dual-lamp controller of the utility model.

Fig. 3 is a schematic circuit diagram of the Zigbee circuit, first dimming circuit and second dimming circuit in the two lamp controllers of street lamp node.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 3, a street lamp node dual lamp controller includes:

the input end of the first current sampling circuit is connected with the power supply input end of the first LED lamp L1, the output end of the first current sampling circuit is connected with the ZigBee circuit, and the first current sampling circuit is used for collecting working current signals in the first LED lamp L1 and transmitting the working current signals to the ZigBee circuit to detect a current effective value passing through the first LED lamp L1;

the input end of the second current sampling circuit is connected with the power supply input end of the second LED lamp L2, the output end of the second current sampling circuit is connected with the ZigBee circuit, and the second current sampling circuit is used for collecting working current signals in the second LED lamp L2 and transmitting the working current signals to the ZigBee circuit to detect a current effective value passing through the second LED lamp L2;

the input end of the first voltage sampling circuit is connected with the power supply input end of the first LED lamp L1, the output end of the first voltage sampling circuit is connected with the ZigBee circuit, and the first voltage sampling circuit is used for collecting working voltage signals in the first LED lamp L1 and transmitting the working voltage signals to the ZigBee circuit to detect a voltage effective value connected to the first LED lamp L1;

the input end of the second voltage sampling circuit is connected with the power supply input end of the second LED lamp L2, the output end of the second voltage sampling circuit is connected with the ZigBee circuit, and the second voltage sampling circuit is used for collecting working voltage signals in the second LED lamp L2 and transmitting the working voltage signals to the ZigBee circuit to detect a voltage effective value connected to the second LED lamp L2;

the input end of the Zigbee circuit is respectively connected with the first current sampling circuit, the second current sampling circuit, the first voltage sampling circuit and the second voltage sampling circuit, the output end of the Zigbee circuit is respectively connected with the first dimming circuit and the second dimming circuit, the Zigbee circuit is connected with the monitoring terminal and is used for receiving an instruction sent by the monitoring terminal, the Zigbee circuit is responsible for the Zigbee communication function, the working current and the working voltage signals in the first LED lamp L1 and the second LED lamp L2 are collected, PWM signals are generated, the first LED lamp L1 and the second LED lamp L2 are respectively dimmed through the first dimming circuit and the second dimming circuit, and current and voltage data in the first LED lamp L1 and the second LED lamp L2 are simultaneously sent to the monitoring terminal;

the input end of the first dimming circuit is connected with the Zigbee circuit, and the output end of the first dimming circuit is connected with the dimming control end of the first LED lamp L1 and used for adjusting the brightness of the first LED lamp L1;

the input end of the second dimming circuit is connected with the Zigbee circuit, and the output end of the second dimming circuit is connected with the dimming control end of the second LED lamp L2 and used for adjusting the brightness of the second LED lamp L2;

the first voltage sampling circuit is connected in parallel with the second voltage sampling circuit.

The monitoring terminal is connected with the street lamp power supply, and after the monitoring terminal sends a power-on instruction to the street lamp power supply, the street lamp power supply supplies power to the first LED lamp L1 and the second LED lamp L2; two power input ends of the second LED lamp L2 are respectively externally connected with a wiring port used for being connected with the power input end of the first LED lamp L1. The N power input end of the second LED lamp L2 is connected to the N power input end of the first LED lamp L1 via an interface OP1, and the L power input end of the second LED lamp L2 is connected to the L power input end of the first LED lamp L1 via an interface OP 2. When the interface OP1 and the interface OP2 are disconnected, the first LED lamp L1 and the second LED lamp L2 are respectively powered by two independent power supply ends of the street lamp power supply; when the interface OP1 and the interface OP2 are closed, the first LED lamp L1 and the second LED lamp L2 can jointly use a power supply end of a street lamp power supply to supply power, and the flexible selection of a street lamp power supply mode is realized.

The Zigbee circuit comprises a CC2530 chip U1 and peripheral circuits thereof; the CC2530 chip U1 is respectively coupled with the first current sampling circuit, the second current sampling circuit, the first voltage sampling circuit and the second voltage sampling circuit and is wirelessly connected with the monitoring terminal.

The first current sampling circuit inputs the processed alternating voltage signal into a P0_4 pin of a CC2530 chip to an ADC module (namely an analog-to-digital converter module) in the CC2530 chip to detect the voltage, the CC2530 chip carries out AD detection on the voltage at intervals of 1ms and continuously compares the current value with the previous value to obtain the maximum value in each period, so that the effective value of the current flowing through the first LED lamp L1 is detected and converted; the first voltage sampling circuit inputs the processed alternating voltage signal to a P0_5 pin of a CC2530 chip to an ADC module (namely an analog-to-digital converter module) in the CC2530 chip to detect the voltage, the CC2530 chip carries out AD detection on the voltage at intervals of 1ms and continuously compares the current value with the previous value to obtain the maximum value in each period, and therefore the voltage effective value connected to the first LED lamp L1 is measured and converted.

The second current sampling circuit inputs the processed alternating voltage signal into a P0_6 pin of the CC2530 chip to an ADC module (namely an analog-to-digital converter module) in the CC2530 chip to detect the voltage, the CC2530 chip carries out AD detection on the voltage at intervals of 1ms and continuously compares the current value with the previous value to obtain the maximum value in each period, so that the effective value of the current flowing through the second LED lamp L2 is detected and converted; the second voltage sampling circuit inputs the processed alternating voltage signal to a P0_7 pin of the CC2530 chip to an ADC module (namely an analog-to-digital converter module) in the CC2530 chip to detect the voltage, the CC2530 chip carries out AD detection on the voltage at intervals of 1ms and continuously compares the current value with the previous value to obtain the maximum value in each period, and therefore the voltage effective value connected to the second LED lamp L2 is measured and converted.

The first current sampling circuit comprises an alternating current transformer CT1, a first resistor R1 and a diode D1; the input end of the alternating current transformer CT1 is connected with the power input end of the first LED lamp L1, and the output end of the alternating current transformer CT1 is connected with the Zigbee circuit through the first resistor R1 and the diode D1 in sequence. The street lamp power supply is connected to a power input end of a first LED lamp L1 through an alternating current transformer CT1, the alternating current transformer CT1 is used for sampling current flowing through the first LED lamp L1, the current which is in direct proportion to the current flowing into the first LED lamp L1 is output from the alternating current transformer CT1, alternating voltage which is in direct proportion to the current is obtained through a first resistor R1, the alternating voltage is rectified through a diode D1, an effective value of the alternating voltage is obtained, and finally the alternating voltage is input into a Zigbee circuit.

The second current sampling circuit comprises an alternating current transformer CT1 ', a first resistor R1 ' and a diode D1 '; the input end of the alternating current transformer CT1 'is connected with the power input end of the second LED lamp L2, and the output end of the alternating current transformer CT 1' is connected to the Zigbee circuit through the first resistor R1 'and the diode D1' in sequence. The street lamp power supply is connected to a power input end of a second LED lamp L2 through an alternating current transformer CT1 ', the alternating current transformer CT1 ' is used for sampling current flowing through the second LED lamp L2, current which is in direct proportion to current flowing into a second LED lamp L2 is output from the alternating current transformer CT1 ', alternating voltage which is in direct proportion to the current is obtained by flowing through a first resistor R1 ', the alternating voltage is rectified through a diode D1 ', an effective value of the alternating voltage is obtained, and finally the effective value of the alternating voltage is input into a Zigbee circuit.

The first voltage sampling circuit comprises a transformer T1, a rectifier bridge D2, a second resistor R2 and a third resistor R3; the input end of the transformer T1 is connected with the power input end of the first LED lamp L1, the output end of the transformer T1 is connected with a voltage reduction circuit formed by connecting a second resistor R2 and a third resistor R3 in series through a rectifier bridge D2, and the voltage reduction circuit is connected with a Zigbee circuit. The transformer T1 converts the ac power voltage connected to the first LED lamp L1 into an ac voltage with a lower frequency, which is proportional to the ac power voltage of the street lamp power supply, and the ac voltage is rectified by the rectifier bridge D2 to output a positive half-cycle ac voltage signal, and then the rectified ac voltage signal is stepped down by the step-down circuit and then input to the Zigbee circuit.

The second voltage sampling circuit comprises a transformer T1 ', a rectifier bridge D2', a second resistor R2 'and a third resistor R3'; the input end of the transformer T1 is connected with the power input end of the second LED lamp L2, the output end of the transformer T1 is connected with a voltage reduction circuit formed by connecting a second resistor R2 ' and a third resistor R3 ' in series through a rectifier bridge D2 ', and the voltage reduction circuit is connected with a Zigbee circuit. The transformer T1 'converts the ac power voltage connected to the second LED lamp L2 into an ac voltage with a lower frequency, which is proportional to the ac power voltage of the street lamp power supply, and the ac voltage is rectified by the rectifier bridge D2' to output a positive half-cycle ac voltage signal, and then the rectified voltage signal is stepped down by the step-down circuit and then input to the Zigbee circuit.

The first dimming circuit comprises a fourth resistor R4, a fifth resistor R5 and a triode Q1; one end of the fourth resistor R4 is connected to the Zigbee circuit, and the other end is connected to the fifth resistor R5 through the triode Q1, and the dimming control end of the first LED lamp L1 is connected between the triode Q1 and the fifth resistor R5. The CC2530 generates an inverted PWM signal, and the inverted PWM signal is converted into a 10V level by a triode Q1 and then is input into a dimming port of the first LED lamp L1 for dimming.

The second dimming circuit comprises a fourth resistor R4 ', a fifth resistor R5 ' and a triode Q1 '; one end of the fourth resistor R4 ' is connected to the Zigbee circuit, and the other end is connected to the fifth resistor R5 ' through the transistor Q1 ', and the dimming control end of the second LED lamp L2 is connected between the transistor Q1 ' and the fifth resistor R5 '. The CC2530 chip generates an inverted PWM signal, and the inverted PWM signal is converted into a 10V level by a triode Q1' and then is input into a dimming port of the second LED lamp L2 for dimming.

The voltage stabilizing circuit comprises a first voltage stabilizing circuit and a second voltage stabilizing circuit; the input end of the first voltage stabilizing circuit is used for being connected with the first voltage sampling circuit and the second voltage sampling circuit, converting the input end of the first voltage stabilizing circuit into a 10V PWM signal and outputting the PWM signal, and the first voltage stabilizing circuit and the second voltage sampling circuit are used for providing the 10V PWM signal for the first dimming circuit and the second dimming circuit to perform dimming; the input end of the second voltage stabilizing circuit is connected with the first voltage stabilizing circuit, and is converted into 3.3V direct current for outputting, so as to provide working voltage for the Zigbee circuit.

The first voltage stabilizing circuit comprises a diode D3, a first capacitor C4, a second capacitor C5, a third capacitor C6, a sixth resistor R6, a seventh resistor R7 and a first three-terminal regulator U2; the diode D3 is connected with a second voltage stabilizing circuit through a first three-terminal regulator U2; the input end of the first three-terminal regulator U2 is grounded through a first capacitor C4, and the output end of the first three-terminal regulator U2 is grounded through a second capacitor C5 and a third capacitor C6 respectively; the output end of the first three-terminal voltage regulator U2 is grounded through a sixth resistor R6 and a seventh resistor R7 in sequence. The first capacitor C4-the third capacitor C6 are used for power supply filtering and play a role in stabilizing the power supply voltage.

The second voltage stabilizing circuit comprises a second three-terminal voltage regulator U3, a fourth capacitor C7 and a fifth capacitor C8; the input end of the second three-terminal regulator U3 is connected with the first voltage stabilizing circuit, and the output end is grounded through a fourth capacitor C7 and a fifth capacitor C8 respectively.

In this embodiment, the three-terminal regulator U1 was an AMS1117ADJ model three-terminal regulator, and the first three-terminal regulator U2 was an AMS1117-3.3 model three-terminal regulator.

The working process of the street lamp node double-lamp controller of the embodiment is as follows:

the street lamp power supply is connected with the monitoring terminal, and when the lamp is turned on, the monitoring terminal sends a power-on instruction to the street lamp power supply, and then the street lamp power supply can provide 220V alternating current to supply power for the street lamp and the street lamp node double-lamp controller, and the power is not supplied at ordinary times, so that the electric energy is saved.

The interface JP1 and the interface JP3 are respectively connected with a street lamp power supply to supply power to a street lamp node double-lamp controller, and then are connected with an N power supply input end of a first LED lamp L1 through an interface JP2 and are connected with an N power supply input end of a second LED lamp L2 through an interface JP 4; the first dimming circuit is connected with the dimming control end of the LED lamp Ll through an interface JP5 and is used for dimming the first LED lamp L1; the second dimming circuit is connected to the dimming control terminal of the second LED lamp L2 through the interface JP6, so as to dim the second LED lamp L2.

The power supply of the street lamp supplies power to the street lamp and the street lamp node dual-lamp controller, the Zigbee circuit controls the street lamp to light up at the highest brightness firstly, then the street lamp is added into a Zigbee network of the monitoring terminal according to the protocol mode of Zigbee, the monitoring terminal can visit each node according to the prestored node dual-lamp controller information, and when the corresponding node receives the inquiry information, the monitoring terminal is informed of the self network access information (such as 16-bit short address and the like).

After the monitoring terminal is communicated with the street lamp node double-lamp controller, the luminosity information of the current LED lamp is sent to the street lamp node double-lamp controller, the luminosity is divided into 10 levels from 0 to 9, 0 is not bright, 9 is brightest, PWM signals are generated by a PWM generator in a CC2530 chip in a Zigbee circuit or generated by a timer in an analog mode, the two groups of PWM signals are independently adjusted, the PWM signals and the signals input to the LED lamp are in opposite phases, and finally the signals are converted into 10V electrical level through a dimming circuit and then input to a dimming control end of the LED lamp, so that the two LED lamps are independently dimmed.

After the two-lamp controller of the street lamp node completes the steps, a timer in a CC2530 chip in a Zigbee circuit controls an ADC module in the Zigbee circuit to respectively carry out AD detection on voltages on pins P0_ 4-P0 _7 every 1ms so as to obtain the working current and the working voltage of each current LED lamp, and analyzes the working current of the LED lamp according to the preset current value of the luminosity of the current LED lamp (the current values of the LED lamps are different due to different power or types of LED lamps and different luminosity, and the typical value is stored in the two-lamp controller of the street lamp node in advance through a prior experiment test), and sends an alarm to a monitoring terminal if the working current deviates from a preset range (a maximum value and a minimum value are preset); similarly, if the detected voltage is lower than 200V or higher than 240V, an alarm is sent to the monitoring terminal so as to prevent the LED lamp from being influenced by the overhigh or overlow voltage.

When the monitoring terminal sends a data acquisition request to the Zigbee circuit, the Zigbee circuit sends current data and voltage data of the street lamp to the monitoring terminal for the purpose of street lamp system operation statistics, and meanwhile, the monitoring terminal can judge whether the double-lamp controller of the street lamp node works in a correct state according to the data sent back by the Zigbee circuit.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are still within the scope of the invention.

Claims

1. A street lamp node double-lamp controller is characterized by comprising:

and the input end of the voltage stabilizing circuit is respectively connected with the first voltage sampling circuit and the second voltage sampling circuit, and the output end of the voltage stabilizing circuit is respectively connected with the ZigBee circuit, the first dimming circuit and the second dimming circuit and is used for providing working voltage for the ZigBee circuit, the first dimming circuit and the second dimming circuit.

2. The street lamp node dual lamp controller of claim 1, wherein: the monitoring terminal is connected with the street lamp power supply, and after the monitoring terminal sends a power-on instruction to the street lamp power supply, the street lamp power supply supplies power to the first LED lamp and the second LED lamp.

3. The street lamp node dual lamp controller of claim 1, wherein: and the two power input ends of the second LED lamp are respectively externally connected with a wiring port used for being connected with the power input end of the first LED lamp.

4. The street lamp node dual lamp controller of claim 1, wherein: the Zigbee circuit comprises a CC2530 chip and peripheral circuits thereof; the CC2530 chip is respectively coupled with the first current sampling circuit, the second current sampling circuit, the first voltage sampling circuit and the second voltage sampling circuit and is in wireless connection with the monitoring terminal.

5. The street lamp node dual lamp controller of claim 1, wherein: any one of the first current sampling circuit and the second current sampling circuit comprises an alternating current transformer, a first resistor and a diode; the input end of the alternating current transformer is connected with the power input end of the LED lamp corresponding to the current sampling circuit, and the output end of the alternating current transformer is connected into the Zigbee circuit through the first resistor and the diode in sequence.

6. The street lamp node dual lamp controller of claim 1, wherein: any one of the first voltage sampling circuit and the second voltage sampling circuit comprises a transformer, a rectifier bridge, a second resistor and a third resistor; the input end of the transformer is connected with the power input end of the LED lamp corresponding to the voltage sampling circuit, the output end of the transformer is connected with a voltage reduction circuit formed by connecting a second resistor and a third resistor in series through a rectifier bridge, and the voltage reduction circuit is connected into the Zigbee circuit.

7. The street lamp node dual lamp controller of claim 1, wherein: any one of the first dimming circuit and the second dimming circuit comprises a fourth resistor, a fifth resistor and a triode; one end of the fourth resistor is connected with the Zigbee circuit, the other end of the fourth resistor is connected with the fifth resistor through the triode, and the dimming control end of the LED lamp corresponding to the dimming circuit is connected between the triode and the fifth resistor.

8. The street lamp node dual lamp controller of claim 1, wherein: the voltage stabilizing circuit comprises a first voltage stabilizing circuit and a second voltage stabilizing circuit; the input end of the first voltage stabilizing circuit is connected with the voltage sampling circuit and is converted into a 10V PWM signal to be output; the input end of the second voltage stabilizing circuit is connected with the first voltage stabilizing circuit and is converted into 3.3V direct current for output.

9. The street light node dual lamp controller of claim 8, wherein: the first voltage stabilizing circuit comprises a diode, a first capacitor, a second capacitor, a third capacitor, a sixth resistor, a seventh resistor and a first three-terminal voltage stabilizer; the diode is connected with a second voltage stabilizing circuit through a first three-terminal voltage stabilizer; the input end of the first three-terminal voltage stabilizer is grounded through a first capacitor, and the output end of the first three-terminal voltage stabilizer is grounded through a second capacitor and a third capacitor respectively; the output end of the first three-terminal voltage stabilizer is grounded through a sixth resistor and a seventh resistor in sequence.

10. The street light node dual lamp controller of claim 8, wherein: the second voltage stabilizing circuit comprises a second three-terminal voltage stabilizer, a fourth capacitor and a fifth capacitor; the input end of the second three-terminal voltage stabilizer is connected with the first voltage stabilizing circuit, and the output end of the second three-terminal voltage stabilizer is grounded through the fourth capacitor and the fifth capacitor respectively.