CN205772560U - A kind of elevator call lattice display panel - Google Patents
A kind of elevator call lattice display panel Download PDFInfo
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- CN205772560U CN205772560U CN201620493621.2U CN201620493621U CN205772560U CN 205772560 U CN205772560 U CN 205772560U CN 201620493621 U CN201620493621 U CN 201620493621U CN 205772560 U CN205772560 U CN 205772560U
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Abstract
A kind of elevator call lattice display panel, relate to elevator accessory technical field, the drive circuit of described elevator call lattice display panel includes MUC module (1), first chip (2), one group of A diode (6), first dot matrix pipe (3), second chip (4), one group of B diode (7) and the second dot matrix pipe (5), described first chip (2) is connected with MUC module (1) communication respectively with the second chip (4), one group of control interface of described first dot matrix pipe (3) is electrically connected by one group of A diode and the first chip (2) respectively, one group of control interface of the second described dot matrix pipe (5) is electrically connected with the second chip (4) by one group of B diode (7) respectively.This utility model is provided that a kind of elevator call lattice display panel, and the dot matrix circuit board after change solves optical crosstalk problem, and increases the service life of dot matrix pipe.
Description
Technical field
This utility model relates to elevator accessory technical field, is specifically related to a kind of elevator call lattice display panel.
Background technology
The pattern of elevator display panel many employings lattice block display in the market, because it is with low cost, product is elegant in appearance, and display content is short and sweet.But because there is optical crosstalk phenomenon after using a period of time, allow a lot of Elevator Factory hang back.I takes charge of the lattice display panel of production and accounts for the significant portion of total output about optical crosstalk phenomenon feedback every year.
This scheme can solve dot matrix optical crosstalk problem, and is greatly increased the service life of dot matrix product, because its electronic component volume selected is less, does not increase the winding displacement difficulty of circuit board.
Utility model content
The purpose of this utility model is contemplated to solve above-mentioned technical problem, and provides a kind of elevator call lattice display panel.
The drive circuit of elevator call lattice display panel described in the utility model includes MUC module, the first chip, one group of A diode, the first dot matrix pipe, the second chip, one group of B diode and the second dot matrix pipe, described first chip and the second chip are connected with MUC module communication respectively, one group of control interface of described first dot matrix pipe is electrically connected by one group of A diode and the first chip respectively, and one group of control interface of the second described dot matrix pipe is electrically connected by one group of B diode and the second chip respectively.
Described one group of A diode and one group of B diode are 8 A diodes and 8 B diodes respectively.
Described first chip and the second chip are 74HC574 chip respectively.
Described first dot matrix pipe and the second dot matrix pipe are the LED dot matrix pipe with 8 display units respectively.
This utility model has the advantage that
This utility model is provided that a kind of elevator call lattice display panel, and the dot matrix circuit board after change solves optical crosstalk problem, and increases the service life of dot matrix pipe.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model.
In figure: 1, MUC module；2, the first chip；3, the first dot matrix pipe；4, the second chip；5, the second dot matrix pipe；6, one group of A diode；7, one group of B diode.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
As shown in Figure 1, the drive circuit of elevator call lattice display panel described in the utility model includes 2, one group of A diode 4, one group of B diode of the 6, first dot matrix pipe the 3, second chip 7 of MUC module the 1, first chip and the second dot matrix pipe 5, described first chip 2 is connected with MUC module 1 communication respectively with the second chip 4, one group of control interface of described first dot matrix pipe 3 is electrically connected by one group of A diode and the first chip 2 respectively, and one group of control interface of the second described dot matrix pipe 5 is electrically connected with the second chip 4 by one group of B diode 7 respectively.
Described one group of A diode 6 and one group of B diode 7 are 8 A diodes 6 and 8 B diodes 7 respectively.
Described first chip 2 and the second chip 4 are 74HC574 chip respectively.
Described first dot matrix pipe 3 and the second dot matrix pipe 5 are the LED dot matrix pipe with 8 display units respectively.
Working method and principle: dot matrix optical crosstalk is because dot matrix pipe is when display, each display unit of dot matrix pipe has reverse leakage current to produce, do cut-off reverse current to prevent every the loop produced on drive circuit of leakage current from increasing a diode, thus avoid the phenomenon of dot matrix optical crosstalk；
Drive two dot matrix pipes of 2 74HC574 chip controls for the switch of 16 luminescence units respectively by MUC module, save MCU pin 8, it is achieved few pin is to multiloop control.
Embodiment of above is merely to illustrate this utility model; and be not limitation of the utility model; those of ordinary skill about technical field; in the case of without departing from spirit and scope of the present utility model; can also make a variety of changes and modification; the technical scheme of the most all equivalents falls within category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. an elevator call lattice display panel, it is characterized in that the drive circuit of described elevator call lattice display panel includes MUC module (1), first chip (2), one group of A diode (6), first dot matrix pipe (3), second chip (4), one group of B diode (7) and the second dot matrix pipe (5), described first chip (2) is connected with MUC module (1) communication respectively with the second chip (4), one group of control interface of described first dot matrix pipe (3) is electrically connected by one group of A diode and the first chip (2) respectively, one group of control interface of the second described dot matrix pipe (5) is electrically connected with the second chip (4) by one group of B diode (7) respectively.
A kind of elevator call lattice display panel the most according to claim 1, it is characterised in that described one group of A diode (6) and one group of B diode (7) are 8 A diodes (6) and 8 B diodes (7) respectively.
A kind of elevator call lattice display panel the most according to claim 1, it is characterised in that described first chip (2) and the second chip (4) are 74HC574 chip respectively.
A kind of elevator call lattice display panel the most according to claim 1, it is characterised in that described first dot matrix pipe (3) and the second dot matrix pipe (5) are the LED dot matrix pipe with 8 display units respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493621.2U CN205772560U (en) | 2016-05-27 | 2016-05-27 | A kind of elevator call lattice display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493621.2U CN205772560U (en) | 2016-05-27 | 2016-05-27 | A kind of elevator call lattice display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205772560U true CN205772560U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620493621.2U Active CN205772560U (en) | 2016-05-27 | 2016-05-27 | A kind of elevator call lattice display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN205772560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451377A (en) * | 2018-05-07 | 2019-11-15 | 广州广日电梯工业有限公司 | The monitoring method and monitoring device called together outside the dot matrix of elevator |
-
2016
- 2016-05-27 CN CN201620493621.2U patent/CN205772560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451377A (en) * | 2018-05-07 | 2019-11-15 | 广州广日电梯工业有限公司 | The monitoring method and monitoring device called together outside the dot matrix of elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |