CN203396925U

CN203396925U - Electrical-parameter monitoring device for multichannel LED lamps

Info

Publication number: CN203396925U
Application number: CN201320482483.4U
Authority: CN
Inventors: 张沛强; 蔡俊涛
Original assignee: GUANGZHOU MECHANICAL AND ELECTRICAL TECHNOLOGY RESEARCH INSTITUTE
Current assignee: GUANGZHOU MECHANICAL AND ELECTRICAL TECHNOLOGY RESEARCH INSTITUTE
Priority date: 2013-08-07
Filing date: 2013-08-07
Publication date: 2014-01-15
Anticipated expiration: 2023-08-07

Abstract

The utility model discloses an electrical-parameter monitoring device for multichannel LED lamps. The device includes a microprocessor connected with an array switching module, an electrical-parameter calculating module, a communication module, a data-backup interface module and a power-supply module. The electrical-parameter calculating module is connected with a sensing module. The sensing module is also connected with the array switching module. The electrical-parameter monitoring device for the multichannel LED lamps is capable of monitoring states of the multi-channel LED lamps in operation, wherein the parameters include voltage true effective values, current true effective values, active powers and power factors and the like. The device is also capable of intelligently monitoring, identifying and estimating the parameters and judging performance fluctuations of the LED lamps in operation.

Description

A kind of multi-channel LED light fixture electrical quantity monitoring device

Technical field

The utility model relates to the technical field of LED burn-in test, particularly a kind of multi-channel LED light fixture electrical quantity monitoring device.

Background technology

Continuous reduction along with the cost and price of LED chip and device, the use of LED light source and light fixture at present starts to embody higher cost performance, in fields such as room lighting, Landscape Lighting, road lightings, be widely used, just, with swift and violent velocity shock conventional lamp market, its development is particularly noticeable.

LED light fixture also have brightness easy to control, without stroboscopic, the advantage such as safe, maintenance cost is extremely low, although go back at present, average life is subject to heat radiation and driving power affects, the relatively high deficiency of cost price, but the obvious LED light fixture of comprehensive advantage has started to enter the Demonstration And Extension application stage, and obtains the active support of the government.

But, for the large-scale application of domestic LED light fixture, promote, some experts also query and worry, and think that current LED light fixture also exists to be subject to environment and heat radiation to affect the technical matterss such as long-term light decay is serious, driving circuit causes inefficacy, life-span be unreliable.And due to the hysteresis of the standards and guidelines of LED light fixture, lack LED light fixture method of testing and testing tool equipment targetedly.

Multi-channel LED light fixture electrical quantity monitoring new method, by adopting new sensing technology, mobile communication technology, the information processing technology and intelligent identification technology, be intended to the real-time running state of LED light fixture to monitor, robotization, standardization and the Standardization Requirement of having realized LED test, improved extraction efficiency greatly.Thoroughly changed traditional, original mode of operation, make the more easy standard of operating process, make the more accurate standard of result and science reliable.

Utility model content

The purpose of this utility model is that the shortcoming that overcomes prior art, with not enough, provides a kind of multi-channel LED light fixture electrical quantity monitoring device.

The purpose of this utility model is achieved through the following technical solutions:

A light fixture electrical quantity monitoring device, comprises microprocessor, and described microprocessor is connected with array handover module, electrical quantity computing module, communication module, data backup interface module and power module; Described electrical quantity computing module is connected with sensing module, and described sensing module is also connected with permutation handover module.

Preferably, described array handover module comprises transformation from serial to parallel module and relay switch array module.

Preferably, described electrical quantity computing module comprises single-phase electric energy computation chip.

Preferably, described communication module comprises for the wireless communication module of wireless data communications or/and for the RS232 communication interface of wired data communication.

Preferably, also comprise expanded circuit, described expanded circuit comprise for power module voltage input or output level measurement self-checking circuit, the nonvolatile memory of storage Monitoring Data, for providing the real time clock circuit of real-time time information and for the status displays of show state code, described self-checking circuit, nonvolatile memory, real time clock circuit and status displays are all connected with microprocessor.

Preferably, described data backup interface module comprises that one for reading the SDHC card type mobile memory interface of Monitoring Data and program upgrade.

Preferably, described microprocessor is 32, the microprocessor of ARM framework.

Preferably, described power module comprises electric source monitoring circuit, AC/DC converter and step down voltage redulator, and described electric source monitoring circuit, AC/DC converter and step down voltage redulator are linked in sequence.

The utility model has following advantage and effect with respect to prior art:

1, the utility model changes in the past traditional, the original mode of operation of LED light fixture test, make the more easy standard of operating process, make the more accurate standard of result and science reliable.

2, the utility model multi-channel LED light fixture operation electrical quantity monitoring device is monitored LED multi-path light fixture run time behaviour, electrical quantity comprises real available value of voltage, electric current real effective, active power and the power factor (PF) etc. of LED light fixture, above-mentioned parameter is carried out to intellectual monitoring, identification and assessment, the performance inconsistency during operation of judgement LED light fixture etc.

3, multi-channel LED light fixture operation electrical quantity monitoring device of the present utility model, can realize the time switch of LED light fixture is controlled, the normal operating condition of simulation LED light fixture, monitor electric power system state simultaneously, the abnormality of accurate recording system power supply abnormality and LED light fixture, makes to the evaluation of LED light fixture more comprehensively.

4, the utility model can be used for evaluating the burn-in test of LED light fixture, the performance of assessment LED light fixture and quality etc.

Accompanying drawing explanation

Fig. 1 is multi-channel LED light fixture electrical quantity monitoring device structural representation.

Drawing reference numeral explanation: 1, microprocessor; 2, array handover module; 201, transformation from serial to parallel module; 202, relay switch array; 3, sensing module; 301, voltage transformer (VT); 302, current transformer; 4, electrical quantity computing module; 5, communication module; 501, wireless communication module; 502, RS232 communication interface; 6, expanded circuit; 601, self-checking circuit; 602, nonvolatile memory; 603, real time clock circuit; 604, status displays; 7, data backup interface module; 8, power module; 801, AC/DC converter; 802, step down voltage redulator; 803, electric source monitoring circuit.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.

Embodiment

Referring to Fig. 1, this multi-channel LED light fixture electrical quantity monitoring device, comprise microprocessor 1 and with its composition such as array handover module 2, sensing module 3, electrical quantity computing module 4, communication module 5, expanded circuit 6, data backup interface module 7 and power module 8 that cooperatively interact and be connected.

The microprocessor of described microprocessor 1 32 of employings, high-performance, low-power consumption, ARM framework, dominant frequency can reach 72Mhz, has 20KB SRAM, 64KB Flash; A plurality of configurable peripheral hardwares, comprise 3 UART, 1 USB mouth, 2 SPI, 1 IIS, 1 IIC and 37 IO mouths etc.

Described array handover module 2 comprises the relay switch array 202 and the transformation from serial to parallel module 201 that can be used for driving relay array that are connecting LED multi-path voltage and current signal, transformation from serial to parallel module is connected with microprocessor, and the signal that switches different LED light fixture according to microprocessor instruction selects to monitoring system.

Sensing module 3 comprises a voltage transformer (VT) 301 and a current transformer 302, and the LED light fixture channel signal that array handover module 2 is selected converts to and can be used for the micro-signal that electrical quantity calculates.

Electrical quantity computing module 4 is comprised of a special-purpose single phase electric energy computation chip, and the micro-signal of sensing module conversion is carried out to accurate Calculation, obtains characterizing voltage effective value, current effective value, active power and the power factor (PF) of LED light fixture electrical quantity.

Communication module 5 comprise one for short distance, send Monitoring Data or/and the wireless communication module 501 that receives steering order or/and a RS232 communication interface 502 for wire communication; Wireless communication module adopts CC2540 wireless module and Zigbee protocol stack; The Asynchronous Serial Interface of microprocessor converts Transistor-Transistor Logic level signal to RS232 fiduciary level model by ST3232 chip, realizes and external perimysium reference RS232 interface communication.

Expanded circuit 6 comprise for power module voltage input or output the self-checking circuit 601 of level measurement, for storing the W25Q64 type nonvolatile memory 602 of Monitoring Data, for providing the real time clock circuit 603 of real-time time information and for the status displays 604 of show state code; Real time clock circuit adopts DS1337 cake core, by IIC interface, is connected with microprocessor; Status displays adopts two 8 charactrons, can show 256 kinds of status codes.

Data backup interface module 7 comprises that one for SDHC card type module for reading and writing, and the historical data can reading device recording can be used as more new interface of program firmware simultaneously.

Power module 8 comprises step down voltage redulator 802 and the electric source monitoring circuit 803 for alternating current being converted to galvanic WA10-220S05 type AC/DC converter 801, regulating for voltage step-down; Power module, for other module provides its required direct supply, comprises direct current 5V and direct current 3.3V; AC/DC converter is connected with voltage regulator, and 5V direct supply is provided; Another road voltage regulator provides the output of direct current 3.3V power supply, adopts respectively LM2596 type and ASM1117 type voltage regulator.

Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.

Claims

1. a multi-channel LED light fixture electrical quantity monitoring device, is characterized in that, comprises microprocessor, and described microprocessor is connected with array handover module, electrical quantity computing module, communication module, data backup interface module and power module; Described electrical quantity computing module is connected with sensing module, and described sensing module is also connected with permutation handover module.

2. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, is characterized in that, described array handover module comprises transformation from serial to parallel module and relay switch array module.

3. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, is characterized in that, electrical quantity computing module comprises single-phase electric energy computation chip.

4. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, is characterized in that, described communication module comprises for the wireless communication module of wireless data communications or/and for the RS232 communication interface of wired data communication.

5. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, it is characterized in that, also comprise expanded circuit, described expanded circuit comprise for power module voltage input or output level measurement self-checking circuit, the nonvolatile memory of storage Monitoring Data, for providing the real time clock circuit of real-time time information and for the status displays of show state code, described self-checking circuit, nonvolatile memory, real time clock circuit and status displays are all connected with microprocessor.

6. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, is characterized in that, described data backup interface module comprises that one for reading the SDHC card type mobile memory interface of Monitoring Data and program upgrade.

7. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, is characterized in that, described microprocessor is 32, the microprocessor of ARM framework.

8. multi-channel LED light fixture electrical quantity monitoring device according to claim 1, it is characterized in that, described power module comprises electric source monitoring circuit, AC/DC converter and step down voltage redulator, and described electric source monitoring circuit, AC/DC converter and step down voltage redulator are linked in sequence.