CN203352899U

CN203352899U - LED dimming lamp

Info

Publication number: CN203352899U
Application number: CN 201320420875
Authority: CN
Inventors: 张玉杰; 田硕; 郑培
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2013-12-18
Anticipated expiration: 2023-07-16

Abstract

The utility model discloses an LED dimming lamp composed of a control circuit, an optical isolation circuit, a drive circuit and an LED lamp. The control circuit includes a ZigBee module. An infrared sensor module and a power module are connected to the ZigBee module. The power module converts DC5V into DC3.3V. The DC5V provides working power supply for the infrared sensor module and the DC3.3V provides working power supply for the ZigBee module and the optical isolation circuit. A PWM signal emitted by control circuit is connected to the drive circuit through the optical isolation circuit. The optical isolation circuit isolates the PWM signal. The drive circuit is a constant current driving control module. The LED dimming lamp is provided with a simple circuit, and is highly reliable, green and energy saving. On this basis, an underground parking lot is networked, so that the problems of high energy consumption and irrational control of light sources at the underground parking lot are not only solved, but the management efficiency of the underground parking lot is also improved. The LED dimming lamp is high in scalability and has good social benefits and application prospects.

Description

A kind of LED dimming lamp

Technical field

The utility model relates to automation field, is specifically related to a kind of LED dimming lamp.

Background technology

China has a large population, resource-constrained, and many resources are non-renewable.Current shortage of resources and the contradiction of rapid economic development, become one of bottleneck of restriction sustainable economic development.The energy consume excessively and waste is a problem demanding prompt solution, therefore be badly in need of improving energy utilization rate, reduce total energy consumption, reduce carbon emission, set up harmonious green society.

Underground parking adopts incandescent lamp as light source more at present, and the life-span is short, power consumption is large, and adopts the mode of 24 hours continued powers, caused a large amount of energy wastes, the mode of subregion control, in order to reduce power consumption, is taked in the part parking lot, has greatly affected the lighting quality of underground parking.And the characteristics such as LED light source has that light efficiency is high, low in energy consumption, the life-span long, shock resistance is good, if it is applied in to underground parking, not only save mass energy, and greatly extend useful life of parking lot intraoral illumination equipment, the more important thing is, can effectively utilize its easy dimming characteristic, intelligent lighting control is carried out in underground parking lot, have a good application prospect.

Summary of the invention

The problem such as higher for current underground parking lighting installation energy consumption, that control mode is unreasonable, in conjunction with the easy dimming characteristic of LED light source, the purpose of this utility model is to provide a kind of LED dimming lamp, and it is core that this dimming lamp be take the CC2530 of TI company, has realized following functions:

(1) light fixture networking: any one LED dimming lamp can be as a child node of underground parking ZigBee-network, realization is communicated by letter with telegon, accept on the one hand the dimmer command that telegon sends, on the other hand self operating state is uploaded to telegon.

(2) energy-saving illumination: in the situation that nobody's (car) is mobile or there is no a control command, the brightness of all light fixtures all remains 10% of complete bright pattern, so not only guarantee the normal brightness demand of watch-dog, and farthest reduced energy resource consumption.

(3) intelligence is followed illumination: when infrared inductor has detected people's (car) movement, the LED light fixture is become to complete bright pattern by energy saver mode, if there is target to move in investigative range always, the LED light fixture continues to be lit, when people's (car) being detected, leave away, after time delay a period of time, the LED light fixture enters energy saver mode, and brightness becomes 10% of complete bright pattern again, realizes that intellectuality saves lighting.

(4) PWM light modulation: the injury caused to the human eye for fear of the sudden change of LED brightness, adopt the PWM dimming mode, change the average output current of LED by the duty ratio of regulating pwm control signal, by optocoupler, pwm signal is isolated, guaranteed the reliability of pwm signal, and then realize the control of LED brightness reaching good vision dimming effect.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of LED dimming lamp, be comprised of control circuit, optical coupling isolation circuit, drive circuit, LED light fixture,

Described control circuit comprises the ZigBee module, the infrared inductor module is connected respectively the ZigBee module with power module, described power module is converted into DC3.3V by DC5V, wherein DC5V provides working power for the infrared inductor module, DC3.3V provides working power for ZigBee module and optical coupling isolation circuit

The pwm signal that control circuit sends, by connecting drive circuit after optical coupling isolation circuit, described optical coupling isolation circuit is isolated pwm signal,

Described drive circuit is a constant current drive control module.

Preferably, described ZigBee module be take CC2530 as microcontroller, and the infrared inductor module is detected the personnel's vehicle mobile situation in induction range,

When the CC2530 microcontroller receives people's car mobile message of infrared inductor module transmission or receives dimmer command, can recently change by the duty that changes step by step pwm pulse signal the output current of constant current drive control module.

Preferably, described constant current drive control module is comprised of AC/DC change-over circuit, PFC circuit of power factor correction, DC/DC reduction voltage circuit, constant current source control circuit.

The utlity model has following advantage and good effect:

The utility model circuit is simple, reliability is strong, energy-saving and environment friendly, on this basis, by the underground parking networking, not only solved that light source power consumption in underground parking is serious, the irrational problem of control mode, and greatly improved the efficiency of management of underground parking, extensibility is strong, have good social benefit and application prospect.

The accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is structure chart of the present utility model.

Fig. 2 is driving circuit structure schematic diagram of the present utility model.

specific implementation

Below, to structural principle of the present utility model, operation principle is described further.

With reference to Fig. 1, a kind of LED dimming lamp, be comprised of control circuit, optical coupling isolation circuit, drive circuit, LED light fixture.

Described control circuit mainly is comprised of ZigBee module Q2530RF, infrared inductor module, power module, and described optical coupling isolation circuit is mainly designed based on the TLP181 optocoupler, and described drive circuit is PT4027 constant current drive control module.

Described ZigBee module Q2530RF be take the CC2530 microcontroller as core, mainly comprises radio circuit and oscillating circuit;

Described infrared inductor module adopts the BISS0001 pyroelectric infrared sensor, is responsible for the personnel's vehicle mobile situation in induction range is detected, and when people's (car) movable signal is arranged, module output pin V0 output 3.3V high level voltage;

Described power module is converted into DC3.3V by DC5V, and wherein DC5V provides working power for the BISS0001 pyroelectric infrared sensor, and 3.3V is mainly ZigBee module Q2530RF and optical coupling isolation circuit provides working power.

Described PT4027 constant current drive control module mainly is comprised of AC/DC change-over circuit, PFC circuit of power factor correction, DC/DC reduction voltage circuit, constant current source control circuit.

The constant current drive control module adopts a high pressure step-down LED to drive control chip PT4207.PT4207 supports the PWM digit pulse dimming mode of low frequency variable duty ratio, and built-in input voltage compensation function has greatly been improved LED current stability under different input voltages.The constant current precision of output is high, has guaranteed the consistency of LED light source brightness.

When the CC2530 microcontroller receives people's car mobile message of infrared inductor transmission or receives dimmer command, can recently change the output current of constant-current source by the duty that changes step by step pwm pulse signal, realize the smooth adjustment of LED brightness.

With reference to Fig. 2, optical coupling isolation circuit is mainly designed based on the TLP181GB optocoupler, the pwm signal CC2530 microcontroller sent if consider is directly delivered to the DIM pin of PT4207 chip, may cause the power supply interference problem, therefore adopt optocoupler to be isolated it, circuit diagram is as follows, optocoupler 1 pin is drawn by the 3.3V connecting resistance, optocoupler 2 pin connect the PWM output pin of CC2530, the 5.87VDC of optocoupler 3 pin is from 7 pin VDD of PT4207 chip, 4 pin connect the 3 pin GND of PT4207, the i.e. ground of constant-current driven module.

The major advantage of optocoupler is the one-way transmission signal, and input and output have been realized electrical isolation fully, and antijamming capability is strong, long service life, and efficiency of transmission is high.

The utility model has following mode of operation:

(1) energy-saving illumination pattern: if the CC2530 microcontroller does not receive people's (car) movable signal or dimmer command, the brightness of all light fixtures all remains 10% of complete bright pattern.

(2) ZigBee wireless communications mode: when receiving the control command of telegon, the LED light fixture is become to complete bright pattern by energy saver mode, after time delay a period of time, light fixture is recalled to energy saver mode; While receiving the operating state sense command, operating state is uploaded to telegon, if telegon is not received the normal operating conditions that this node sends, shows this node failure, need repairing.

(3) intelligence is followed light illumination mode: when infrared inductor has detected people's (car) movement, the LED light fixture becomes complete bright pattern by energy saver mode, if there is target to move in investigative range always, the LED light fixture continues to be lit, when people's (car) being detected, leave away, after time delay a period of time, the LED light fixture enters energy saver mode, and brightness becomes 10% of complete bright pattern again, realizes that intellectuality saves lighting.

Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a LED dimming lamp, is characterized in that, by control circuit, optical coupling isolation circuit, drive circuit, LED light fixture, formed,

Described drive circuit is a constant current drive control module.

2. a kind of LED dimming lamp according to claim 1, it is characterized in that: described ZigBee module be take CC2530 as microcontroller, and the infrared inductor module is detected the personnel's vehicle mobile situation in induction range,

3. a kind of LED dimming lamp according to claim 1, it is characterized in that: described constant current drive control module is comprised of AC/DC change-over circuit, PFC circuit of power factor correction, DC/DC reduction voltage circuit, constant current source control circuit.