CN2243110Y

CN2243110Y - office marker

Info

Publication number: CN2243110Y
Application number: CN95230876U
Authority: CN
Inventors: 徐国斌; 袁金祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-19
Filing date: 1995-04-19
Publication date: 1996-12-18
Anticipated expiration: 2005-04-19

Abstract

This marker belongs to an electronic display device, and its structure is that this marker comprises controller and display two parts, and the controller is arranged in on the indoor desk, accomplishes the power supply, and control and coding function are connected to outdoor display with the cable on, and the display is accomplished and is marked the window and decode, reputation, the single demonstration of chinese character and language function, advantage: simple structure, the production is easy, and installation convenient to use adorns in the office, improves work efficiency.

Description

Office's marking device

The utility model belongs to a kind of electronic display unit.

At present, the office of each office, group, factories and miness, enterprises and institutions is all closing form, the office of closing the door, owing to do not know having or not or the office situation of indoor occupant, when working sometimes, often be disturbed, cause inconvenience easily, again because owner because of a variety of causes such as away on official business, has a holiday, leave etc. temporarily in the out of office time to owner, bring inconvenience to the visitor, seriously influence work.

For solving above deficiency, the purpose of this utility model provides a kind of office marking device, utilizes electronic circuit and display device to indicate the indoor occupant working condition, thereby it is convenient to reach office, the purpose of increasing work efficiency.

Structural design of the present utility model is achieved in that this marking device is made up of controller and display two parts, controller is positioned on the indoor desk, finishing power supply supplies with, control and encoding function, be connected on the outdoor display with cable, display is finished and is indicated window decoding, acousto-optic, Chinese character single, double character wheel stream demonstration and linguistic function, and its circuit detailed structure is provided by following examples and accompanying drawing.

Fig. 1,2 is office's marking device shape assumption diagram;

Fig. 3 is office's marking device controlling party block diagram;

Fig. 4 is office's marking device electrical schematic diagram.

Its structure is by shown in the electrical schematic diagram, AN ₁～AN ₈Be state selecting key,, connect IC by resistance, the output of diode coding ₁The input end of 8D trigger 74LS374 constitutes 8 and selects 1 latch cicuit, latch IC ₁Output connects LED ₁～LED ₈Light emitting diode, corresponding passage is luminous when choosing, and light emitting diode output is connected to address generator circuit IC by triode ₂～IC ₁₀This circuit is decade counter MCI4017, the counter input end connects time base circuit NE555 simultaneously, the clock signal effect that is provided by NE555 produces address signal down, counter output and diode join, this address signal is encoded by D17～Dn crystal diode, signal behind the coding is connected to display circuit by cable, display is demonstrated the Chinese character of representing owner's intention by diode (LED) square bullet circuit, matrix circuit is connected with column drive circuit with horizontal drive circuit respectively, and wherein the output of diode coding is connected to programable read only memory IC ₁₂2716 input ends.Output is connected to three-state buffer C ₁₃, IC ₁₄Input end, EC ₁₃, IC ₁₄Be 74LS244, IC ₁₃, IC ₁₄And IC17, IC ₁₆, MIC4017 forms 16 carry counting system devices and forms matrix control circuit, drives display matrix and shows required content, wherein IC ₁₅, be 14 grades of binary counters, MIC4060 constitutes IC ₁₂The low order address control circuit of EPROMC2716, IC ₁₆Be that the news that NE555 forms are rung circuit.

During use, as the mode of the visiting available sound equipment of people, light, Chinese character or language, demonstrate as eight kinds of states such as " come in ", " please wait a moment ", " Do not disturb " according to owner's will, the stranger knows at a glance, needn't waste time.

The advantage of the utility model: simple in structure, produce easily, easy to install, performance Safe and reliable.

Claims

1. office's marking device is characterized in that this marking device is made up of controller and display two parts, and controller is positioned on the indoor desk, finish power supply and supply with, control and coding are connected on the outdoor display with cable, display is finished sign, acousto-optic, Chinese character list, and its structure is AN ₁～AN ₆Be state selecting key,, connect IC by resistance, the output of diode coding ₁The input end of 8D trigger 74LS374 constitutes 8 and selects 1 latch cicuit, latch IC ₁Output connects LED ₁～LED ₈Light emitting diode, corresponding passage is luminous when choosing, and light emitting diode output is connected to address generator circuit IC by triode ₂～IC ₁₀This circuit is decade counter MCI4017, the counter input end connects time base circuit NE555 simultaneously, the clock signal effect that is provided by NE555 produces address signal down, counter output and diode join, this address signal is encoded by D17～Dn crystal diode, signal behind the coding is connected to display circuit by cable, display is demonstrated the Chinese character of representing owner's intention by diode (LED) square bullet circuit, matrix circuit is connected with column drive circuit with horizontal drive circuit respectively, and wherein the output of diode coding is connected to programable read only memory IC ₁₂2716 input ends, output connects three-state buffer IC ₁₃, IC ₁₄Input end, IC ₁₃, IC ₁₄Be 74LS244, EC ₁₃, IC ₁₄And IC ₁₇, IC ₁₈, MIC4017 forms 16 carry counting system devices and forms matrix control circuit.

2. by the described office of claim 1 marking device, it is characterized in that IC ₁₅Be that 14 grades of binary counter MIC4060 constitute IC ₁₂The low order address control circuit of EPROMC2716, IC ₁₆Be that the news that NE555 forms are rung circuit.