CN203149095U

CN203149095U - Lamp life detection device

Info

Publication number: CN203149095U
Application number: CN 201320061607
Authority: CN
Inventors: 凌忠兴
Original assignee: Lishui University
Current assignee: Lishui University
Priority date: 2013-02-04
Filing date: 2013-02-04
Publication date: 2013-08-21
Anticipated expiration: 2023-02-04

Abstract

A lamp life detection device comprises a single chip microcomputer connected with a power supply; the single chip microcomputer is connected with a lamp working state detection circuit, a relay drive circuit, a display, a function key and a timing clock circuit, wherein the relay drive circuit is connected with a lamp control circuit. The the lamp life detection device of the utility model which has a friendly human-computer interface and is convenient in operation can assist in improving detection efficiency and data accuracy of detection equipment, and reducing labor intensity of operators and improving product quality of production enterprises. According to life test methods commonly used in current enterprise standards, through using control functions such as timing and counting of the single chip microcomputer system, and with a memory storage chip adopted, the actual requirements for the lamp life detection device can be better satisfied. With the lamp life detection device adopted, the life data of each lamp can be recorded and displayed, and test data will not lose when power outage occurs.

Description

A kind of lamp life pick-up unit

Technical field

The utility model relates to a kind of pick-up unit, especially a kind of lamp life pick-up unit.

Background technology

At present, light fixture manufacturing enterprise is in order to guarantee the quality of products, conscientiously improve the product quality of light fixture, must inspect by random samples by a certain percentage the product of each batch, to measure the performance index of light fixture, wherein the life-span is the important indicator of light fitting quality, it is reported present light fixture manufacturing enterprise at the life detecting device that uses, and what have can only survey few several light fixtures at every turn even have only one; Although what have once can test more light fixture, need operating personnel to notice that constantly the damaged condition of light fixture also in time performs record.Low at existing life detecting device testing efficiency, the data human factor that records is serious, the situation that confidence level is not high.

The utility model content

The utility model will solve the shortcoming of above-mentioned prior art, a kind of lamp life pick-up unit is provided, the works finished of design have simultaneously at least 4 different light fixtures carry out life test, automatic accurate record each only tested light fixture life-span and have that parameter is set and the outage memory function, efficient and the life of product data confidence level of lamp life pick-up unit have been significantly improved, both alleviated labor strength, promote the quality of enterprise product again, improved business economic benefit and market competitive power.

The utility model solves the technical scheme that its technical matters adopts: this lamp life pick-up unit, comprise the single-chip microcomputer that connects power supply, single-chip microcomputer connects light fixture Working state checking circuit, relay driving circuit, display, function button and timer clock circuit, and wherein the relay driving circuit connects lamp control circuit.Automatically count by the number of times of tested light fixture being lighted at the appointed time and extinguish, the method till light fixture lost efficacy realizes the life test function, and the length of concrete time can be set according to testing standard and method.As: fluorescent tube is carried out life test adopt often and make it light the method that 15S extinguishes 45S under rated voltage, and note its number of times when beginning to damage to filament, corresponding number of times is the life-span of fluorescent tube (unit: hour).

Wherein single-chip microcomputer connects the outage data holding circuit.When external power failure or interruption stopped test (namely turning off power supply), test figure can be preserved, and can continue operation when working again.

The effect that the utility model is useful is: the utility model is by designing and producing a man-machine interface close friend, easy to operate and lamp life pick-up unit with higher automatization level, with the accuracy that reaches the testing efficiency that improves checkout equipment, data, alleviate operative employee's labour intensity and promote the purpose of manufacturing enterprise's product quality.(namely tested light fixture is lighted at the appointed time and the number of times that extinguishes is counted according to life test commonly used in the existing company standard, count value till light fixture lost efficacy is exactly life parameter) method, obviously utilize control functions such as timing that Single Chip Microcomputer (SCM) system has, counting to add the actual demand that the memory storage chip can be realized the lamp life pick-up unit well.Can record, show the lifetime data of each light fixture, can not lose during the test data outage.

Description of drawings

Fig. 1 is electrical schematic diagram of the present utility model;

Fig. 2 is the electrical schematic diagram of power supply in the utility model;

Fig. 3 is the electrical schematic diagram of single-chip microcomputer in the utility model;

Fig. 4 is the electrical schematic diagram of memory storage sheet in the utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

With reference to accompanying drawing: this lamp life pick-up unit, comprise the single-chip microcomputer that connects power supply, single-chip microcomputer connects light fixture Working state checking circuit, relay driving circuit, display, function button and timer clock circuit, and wherein the relay driving circuit connects lamp control circuit.Wherein single-chip microcomputer connects the outage data holding circuit.

This pick-up unit is core with the single-chip microcomputer, is aided with light activated element, power-off protection storage chip (AT24C02), relay and driving chip (ULN2003) thereof, real-time timepiece chip devices such as (DS1302), and display unit adopts LCD1602.

(1) hardware circuit is formed, and it comprises single-chip minimum system, relay driving, data accumulating, the sampling of light fixture state, clock, function button and modules such as demonstration and direct supply.

1. single-chip minimum system is made up of AT89C52 chip, reset circuit and crystal oscillating circuit, mainly in order to system to reset and sequential, the frequency of crystal oscillator are provided be 12MHz, its circuit theory diagrams are seen accompanying drawing 1.

2.LCD1602 brief introduction

The LCD LCD is the abbreviation of Liquid Crystal Display, the structure of LCD is to place liquid crystal in the middle of two parallel glass, the tiny electric wire that many vertical and levels are arranged in the middle of two sheet glass, whether seeing through switches on controls shaft-like quartzy molecular changes direction, and light refraction is come out to produce picture.It is two types that LCD can be divided into, and a kind of is type mode LCD, and a kind of is Graphics Mode LCD.

LCD1602 belongs to character mode lcd, can show i.e. 32 characters of 16x2 simultaneously.Can link with 8 bit CPUs, command function can be combined into various inputs, demonstration, displacement mode by force to satisfy different requirements.Show and yellowish greenly be with backlightly, show that contrast can regulate, normal working voltage (VDD) be+5V, and working current is about 2mA (disregarding backlight power consumption), and reliability high life while reaches 50,000 hours (25 ℃).

3. DS1302 clock module

Clock module adopts the DS1302 chip, DS1302 is the trickle charge clock chip that DALLAS company releases, contain a real-time clock/calendar and 31 byte static RAM (SRAM)s, communicate by simple serial line interface and single-chip microcomputer, real-time clock/calendar circuit provides a second timesharing, the information of date day month year, every month fate and the fate in leap year can be adjusted automatically, clock operation can determine to adopt 24 or 12 hours forms by AM/PM indication, and can adopt the mode of synchronous serial to communicate between DS1302 and the single-chip microcomputer simply and only need use three mouth lines: RST resets, the I/O data line, the SCLK serial clock.The read/write data of clock/RAM with a byte or nearly the character group mode of 31 bytes communicate by letter.Power consumption is very low during DS1302 work, and power is less than 1mW when keeping data and clock information.

DS1302 has 12 registers, wherein has 7 registers and calendar, clock relevant, and the data bit of depositing is the binary-coded decimal form.

The pin function of DS1302 is as shown in the table

Pin number	Pin name	Function
				1	VCC2	Primary power
2、3	X1、X2	Oscillation source, external 32768Hz crystal oscillator
			4	GND	Ground wire
5	RST	Reset/chip select line
			6	I/O	Serial data I/O end (two-way)
7	SCLK	The serial clock input end
			8	VCC1	Back-up source

4.AT24C02 memory storage module

AT24C02It is the Low-Power CMOS serial of American ATMEL EEPROM, it is to include 256 * 8 storage spaces, have operating voltage wide (2.5～5.5V), the fast characteristics such as (less than 10ms) of erasable (greater than 10000 times) often, writing speed.Serial EEPROMBe based on the memory device of I2C-BUS, follow the two-wire system agreement, the interface of AT24C02 and single-chip microcomputer is very simple.A0 wherein, A1, A2 are the address of devices line, and WP is the write-protect pin, and SCL, SDA are the two-wire serial interface, and because that it has an interface is convenient, volume is little, the data power down such as does not lose at characteristics, obtains a large amount of application in instrument and meter and industrial automation control.

AT24C021,2,3 pin are three address wires, be used for to determine the hardware address of chip.SDA and SCL all need and positive supply between respectively connect on the resistance of a 5.1K and draw.The 7th pin needs ground connection.

Have address register in the sheet among the 24C02.Whenever after writing or read a data byte, this address register adds 1 automatically, to realize the read-write to next storage unit.All bytes all read in the single operation mode.For reducing total write time, single job can write the nearly data of 8 bytes.

5. the method for sampling

Sample circuit is fairly simple, is that the resistance by a photoresistance and a fixed resistance value is in series, and has four the tunnel, and lighting, extinguishing of light fixture is to obtain the high and low level signal corresponding with the light fixture state by photoresistance to losing efficacy still.

Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1. lamp life pick-up unit, comprise the single-chip microcomputer that connects power supply, it is characterized in that: described single-chip microcomputer connects light fixture Working state checking circuit, relay driving circuit, display, function button and real time clock circuit, and described relay driving circuit connects lamp control circuit.

2. lamp life pick-up unit according to claim 1 is characterized in that: described single-chip microcomputer connection outage data holding circuit.