CN201165438Y

CN201165438Y - Elevator interior call display

Info

Publication number: CN201165438Y
Application number: CNU2007200967528U
Authority: CN
Inventors: 范世桐
Original assignee: TIANJIN ZHONGWEI ELECTROMECHANICAL EQUIPMENT TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: TIANJIN ZHONGWEI ELECTROMECHANICAL EQUIPMENT TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2007-07-16
Filing date: 2007-07-16
Publication date: 2008-12-17
Anticipated expiration: 2017-07-16

Abstract

The utility model relates to a control display device for an elevator, in particular to a display device for an elevator car. A call display arranged in the elevator comprises a microprocessor module for storing and executing control program, a serial interface module for converting a differential signal into a standard level signal, a power conversion module for supplying power to the display, a direction indicating module for displaying the running direction of the elevator, a floor display module for displaying the floor where the elevator is on, a full load indicating module for displaying the overload indication of the elevator, and an emergency indicating module for displaying the emergency service indication of the elevator. The elevator control display device mainly has the advantages that firstly, the design of the entire device is integrated on one circuit board; secondly, the structure is simple and the occupying space is small, thirdly, the function of the display can be changed by changing the program.

Description

Exhale telltale in the elevator

Technical field

The utility model relates to the read out instrument that a kind of elevator control read out instrument, particularly lift car use.

Background technology

Before this, the lift car read out instrument adopts discrete devices such as decoding scheme and fluorescent display apparatus to piece together composition; Mainly comprise: three remote controllers and four independent device of floor indicator.The defective of these technology is:

1 uses parallel interface, and field wiring quantity is too much;

2 complex structures, volume is big, and installing space is big;

3 energy consumptions are big, and service life is short;

4 function singlenesses.

The utility model content

At the above-mentioned defective of prior art, the utility model provides a kind of whole Design of device is integrated in the elevator on the circuit card to exhale telltale, and the purpose of this utility model is achieved in that

Exhale telltale in the elevator, comprising:

Microprocessor module is used for storage and executive control program;

Serial interface module is used for converting differential signal to the fiduciary level signal;

The power conversion module is used to telltale that power supply is provided; And

The direction indicating module is used to show the service direction of elevator;

The floor display module is used to show elevator place floor;

Fully loaded indicating module is used to show the overload indication of elevator;

Urgent indicating module is used to show the emergency services indication of elevator;

Wherein microprocessor module is with the power conversion module, serial interface module and application controls module couple together, external power supply outputs to the microprocessor module first input end through the power conversion module, link to each other with microprocessor second input end by serial interface module simultaneously, finish outward sign conversion and with the I/O of microprocessor module, the mouth of microprocessor module links to each other with direction indicating module, floor display module, fully loaded indicating module, urgent indicating module respectively, and then finishes the various control display operations to elevator.

Major advantage of the present utility model is:

1 whole Design of device is integrated on the circuit card.

2 is simple in structure, and it is little to take up room.

3 adopt the LED luminous element, low-power consumption, and the life-span is long.

4 can change the function of telltale by reprogramming.

Description of drawings

Fig. 1 is the utility model profile, external connection line scheme drawing;

Fig. 2 is a control circuit block scheme of the present utility model;

Fig. 3 is a microcontroller submodule block scheme of the present utility model;

Fig. 4 is the circuit connection diagram of communication interface submodule of the present utility model;

Fig. 5 is the circuit connection diagram of power source conversion submodule of the present utility model;

Fig. 6-a ~ 6-e is the circuit connection diagram of direction indication submodule of the present utility model; Wherein, Fig. 6-a cab is fully loaded with indicating circuit, and Fig. 6-b elevator stops indicating circuit, the up indicating circuit of Fig. 6-c, and the descending indicating circuit of Fig. 6-d, Fig. 6-e indicates driving circuit.

Fig. 7-a ~ 7-e is each circuit connection diagram of floor display sub-module of the present utility model; Wherein, Fig. 7-a display driver circuit, Fig. 7-b left side display circuit 1, Fig. 7-c left side display circuit 2, Fig. 7-d right side display circuit 1, Fig. 7-e right side display circuit 2.

Fig. 8 is that schematic flow sheet is judged in overload indication of the present utility model;

Fig. 9 is an emergency service information prompting schematic flow sheet of the present utility model.

The specific embodiment

Example 1 profile of the present utility model, the outside connection

Referring to accompanying drawing 1, employed indication material is as follows in this device:

1) floor shows: at the middle part of telltale; Constitute by one or two M shape LED charactrons;

2) direction indication: in the top of telltale; Constitute by arrowhead form LED light-emitting block;

3) overload indication: below telltale; Constitute by the bar-shaped LED displaying block;

4) urgent indication: telltale below; Constitute by the bar-shaped LED displaying block.

Example 2 control circuits of the present utility model

Referring to accompanying drawing 2, the control circuit of this device comprises: microprocessor module is used for storage and executive control program; Serial interface module is used for converting differential signal to the fiduciary level signal; The power conversion module is used to telltale that power supply is provided; And the direction indicating module, be used to show the service direction of elevator; The floor display module is used to show elevator place floor; Fully loaded indicating module is used to show the overload indication of elevator; Urgent indicating module is used to show the emergency services indication of elevator; Wherein microprocessor module is with the power conversion module, serial interface module and application controls module couple together, external power supply outputs to the microprocessor module first input end through the power conversion module, link to each other with microprocessor second input end by serial interface module simultaneously, finish outward sign conversion and with the I/O of microprocessor module, the mouth of microprocessor module links to each other with direction indicating module, floor display module, fully loaded indicating module, urgent indicating module respectively, and then finishes various controls and demonstration to elevator.

Example 3 micro controller modules

Referring to accompanying drawing 3, microprocessor module comprises central processing unit, clock generator, program store, data memory and input/output interface.These submodules in the microprocessor module all are in order to finish storage and the executive control program that microprocessor itself will be finished, in this module, need to carry out following steps: on universal serial bus, search clock sync signal, make that to set up clock between telltale and the elevator main controller synchronous.Because except that telltale, also comprise other a plurality of remote controllers on the universal serial bus, so a plurality of remote controllers that are connected on the universal serial bus all have own unique address code.When set up between telltale and the elevator main controller clock synchronously after, just on universal serial bus, search address code corresponding, i.e. address synchronization with it according to the address code of telltale.After address synchronization had been set up, telltale began to read data from universal serial bus, i.e. data sync.After data sync was finished, the needed various data of telltale all were kept in the middle of the data memory by microprocessor module.Next, microprocessor module can output to data information stored on floor indicator and the various indicating device under the control of program.

The function of micro controller module: storage and executive control program comprise: receive the command information from the elevator main controller, change elevator floor and indicated number.

Example 4 communication interface moduless

Referring to accompanying drawing 4, communication interface modules function: serial signal conversion.The bus differential signal is converted to the level signal of standard.

Example 5 power transfer module

Referring to accompanying drawing 5, power conversion functions of modules: for telltale provides power supply.The direct current 30V power supply of outside input through twice step-down, is transformed into the direct current 5V power supply of standard.

Example 6 direction indicating modules

Referring to accompanying drawing 6-a ~ Fig. 6-e, direction indicating module function: show the service direction of elevator, and overload indication and emergency services indication etc.Wherein, Fig. 6-a cab is fully loaded with indicating circuit, and Fig. 6-b elevator stops indicating circuit, the up indicating circuit of Fig. 6-c, and the descending indicating circuit of Fig. 6-d, Fig. 6-e indicates driving circuit.The high-brightness LED luminary is adopted in the indication of this module, has therefore used ULN2003 as actuator.

Example 7 floor display modules

Referring to accompanying drawing 7-a ~ Fig. 7-e, floor display module function: be used to show elevator place floor.Wherein, Fig. 7-a display driver circuit, Fig. 7-b left side display circuit 1, Fig. 7-c left side display circuit 2, Fig. 7-d right side display circuit 1, Fig. 7-e right side display circuit 2.This module has been used two " rice fonts ", and the LED charactron is as floor indicator, and actuator has used four serial-parallel converter 74LS164.

Example 8 car overload modules

Referring to accompanying drawing 8, the bottom of lift car is equipped with a LOAD CELLS, and its gathers the weight information of elevator, with the rated load comparison of elevator defined, obtains the signal (represent that with 0 load is normal, represent overload with 1) whether car overloads.The overload signal is converted to serial signal by sensor and sends on the communication bus, meanwhile, telltale receives from the overload signal on the universal serial bus in the elevator sedan-chair, convert serial form to parallel form, therefrom extract the overload signal, and carry out different operations according to the value of overload signal.

If overload signal=1, the expression overload, then output " car overload " information is connected the overload warning alarm bell simultaneously.

If overload signal=0, expression load is normal, then removes " car overload " information, closes the overload warning alarm bell simultaneously.

Example 9 fire-fighting emergency services modules

Referring to accompanying drawing 9, a fireman's switch is installed in the elevator control cabinet, elevator enters the Fire-Fighting Service pattern when fireman's switch is connected (representing with 1), elevator returns to normal operation mode when fireman's switch disconnects (representing with 0). and the fireman's switch signal converts serial signal to and sends on the communication bus, meanwhile, telltale receives from the fireman's switch signal on the universal serial bus in the elevator sedan-chair, convert serial form to parallel form, therefrom extract the fireman's switch signal, and carry out different operations according to the value of fireman's switch signal.

If fireman's switch signal=1, the expression Fire-Fighting Service, then output " fire-fighting emergency services " information is connected Fire-Fighting Service warning alarm bell simultaneously.

If fireman's switch signal=0, expression is operation normally, then removes " fire-fighting emergency services " information, closes Fire-Fighting Service warning alarm bell simultaneously.

Claims

1. exhale telltale in the elevator, comprising:

Microprocessor module is used for storage and executive control program;

The power conversion module is used to telltale that power supply is provided;

The floor display module is used to show elevator place floor;

Wherein microprocessor module is with the power conversion module, serial interface module and application controls module couple together, external power supply outputs to the microprocessor module first input end through the power conversion module, link to each other with microprocessor second input end by serial interface module simultaneously, finish outward sign conversion and with the I/O of microprocessor module, the mouth of microprocessor module links to each other with direction indicating module, floor display module, fully loaded indicating module, urgent indicating module respectively, and then finishes the various control operations to elevator.

2. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, described microprocessor module comprises central processing unit, clock generator, program store, data memory and input/output interface.

3. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, described serial interface module comprises two voltage comparators.

4. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, described power conversion module comprises two pressure units.

5. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, described direction indicating module is used to show service direction, the overload indication of elevator and stops the ladder indication that its indicator lamp adopts high brightness with the LED luminotron of ULN2003 as actuator.

6. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, it is two " rice font " LED charactrons compositions of actuator that described floor display module adopts with four serial-parallel converter 74LS164.

7. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, the bottom of lift car is equipped with a LOAD CELLS.

8. exhale telltale in the elevator as claimed in claim 1, it is characterized in that, a fireman's switch is installed in elevator control cabinet.