CN211149229U

CN211149229U - Multichannel RS485 communication gate control panel

Info

Publication number: CN211149229U
Application number: CN201921035304.6U
Authority: CN
Inventors: 罗家龙; 龙家成; 林文博
Original assignee: Guangdong Yuanchuang Intelligent Technology Co ltd
Current assignee: Guangdong Yuanchuang Intelligent Technology Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-07-31
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a multichannel RS485 communication gate control panel, including at least one RS485 communication card reader, one have parallel main chip and at least one gate control circuit who walks with the ability, RS485 communication card reader with the main chip is connected, gate control circuit with the main chip is connected, every the RS485 communication card reader corresponds a gate. Implement the utility model discloses a multichannel RS485 communication gate control panel has following beneficial effect: the gate switch has the advantages of greatly improved communication efficiency, small time delay, low cost, simple and stable circuit and long service life.

Description

Multichannel RS485 communication gate control panel

Technical Field

The utility model relates to a gate control field, in particular to multichannel RS485 communication gate control panel.

Background

The traditional gate control has the following two modes: the first mode is that 1 gate corresponds to a 485 communication control panel, and the cost of a plurality of gates is extremely high; the second mode is that a plurality of gates correspond to one 485 communication control panel, but the gates can only be used in a serial mode, and the reaction speed is extremely slow and the time delay is large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a can greatly improve gate switch communication efficiency, time delay little, with low costs, simple stable, the long service life's of circuit multichannel RS485 communication gate control panel.

The utility model provides a technical scheme that its technical problem adopted is: the multichannel RS485 communication gate control panel is constructed and comprises at least one RS485 communication card reader, a main chip with parallel and in-line capability and at least one gate control circuit, wherein the RS485 communication card reader is connected with the main chip, the gate control circuit is connected with the main chip, and each RS485 communication card reader corresponds to one gate.

In the multi-channel RS485 communication gate control panel of the present invention, the model of the main chip is GD32F303_ 64.

In the multi-channel RS485 communication gate control panel of the utility model, when the number of the RS485 communication card readers is plural, one of the RS485 communication card readers includes a fifth RS485 communication chip, an eighth resistor, a thirteenth resistor, a twelfth resistor, a ninth resistor, a tenth resistor and a sixth RS485 communication interface, the first pin of the fifth RS485 communication chip is connected with the seventeenth pin of the main chip through the eighth resistor, the second pin and the third pin of the fifth RS485 communication chip are both connected with the sixteenth pin of the main chip, the fourth pin of the fifth RS485 communication chip is connected with the sixteenth pin of the main chip through the thirteenth resistor, the fifth pin of the fifth RS485 communication chip is grounded, the seventh pin of the fifth RS485 communication chip is respectively connected with one end of the twelfth resistor and one end of the ninth resistor, the other end of the ninth resistor is connected with a second pin of the sixth RS485 communication interface, a sixth pin of the fifth RS485 communication chip is connected with the other end of the twelfth resistor and one end of the tenth resistor respectively, the other end of the tenth resistor is connected with a first pin of the sixth RS485 communication interface, and an eighth pin of the fifth RS485 communication chip is connected with a +5V power supply.

In the multi-channel RS485 communication gate control panel, the model of the fifth RS485 communication chip is XR 33038.

The multichannel RS485 communication gate control panel in, work as when gate control circuit's quantity is a plurality of, gate control circuit includes first resistance, first triode, first diode, first relay, second emitting diode, fifty resistance and first interface, the one end of first resistance with the twentieth pin of main chip is connected, the other end of first resistance with the base of first triode is connected, the projecting pole ground connection of first triode, the collecting electrode of first triode with the positive pole of first diode and the second pin of first relay are connected respectively, the negative pole of first diode respectively with the fifth pin of first relay and +5V power connection, the third pin of first relay with the first pin of first interface is connected, the fourth pin of first relay respectively with its sixth pin, And the second pin of the first interface is connected with the anode of a second light-emitting diode, and the cathode of the second light-emitting diode is grounded through the fifty-fifth resistor.

In the multi-channel RS485 communication gate control panel of the present invention, the model of the first relay is HK 23F.

Implement the utility model discloses a multichannel RS485 communication gate control panel has following beneficial effect: owing to be equipped with at least one RS485 communication card reader, one have the main chip and at least one gate control circuit of parallel syntropy ability, adopt the chip that has parallel operation ability, can correspond a plurality of 485 communication card readers, the utility model discloses can greatly improve gate switch communication efficiency, delay little, with low costs, the circuit is simple stable, long service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a multi-channel RS485 communication gate control panel of the present invention;

FIG. 2 is a schematic circuit diagram of the main chip in the embodiment;

FIG. 3 is a schematic circuit diagram of an RS485 communication card reader in the embodiment;

FIG. 4 is a schematic circuit diagram of two of the gate control circuits in the embodiment;

fig. 5 is a schematic circuit diagram of two other gate control circuits in the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses in the embodiment of multichannel RS485 communication gate control panel, the structural schematic diagram of this multichannel RS485 communication gate control panel is shown in FIG. 1. In fig. 1, the multichannel RS485 communication gate control panel includes at least one RS485 communication card reader 1, one main chip U2 with parallel and in-line capability, and at least one gate control circuit 3, and in the figure, four RS485 communication card readers 1 and four gate control circuits 3 are drawn as an example, in practical application, the number of the RS485 communication card readers 1 and the number of the gate control circuits 3 may be adjusted accordingly according to specific situations, that is, the number of the RS485 communication card readers 1 and the number of the gate control circuits 3 may be increased or decreased accordingly according to specific situations.

The RS485 communication card reader 1 is connected with a main chip U2, the gate control circuit 3 is connected with a main chip U2, and each RS485 communication card reader 1 corresponds to one gate. The main chip U2 has parallel and parallel operation capability, can correspond to the RS485 communication card reader 1, is suitable for the condition that a plurality of RS485 communication gates need to work in parallel, and has the characteristics of sensitive response and no time delay. The utility model discloses can greatly improve gate switch communication efficiency, time delay is little, with low costs, the circuit is simple stable, long service life.

Fig. 2 is a schematic circuit diagram of the main chip in this embodiment, and in fig. 2, the model number of the main chip U2 is GD32F303 — 64. The master chip U2 is a chip with parallel inline capability.

When the number of the RS485 communication card readers is multiple, a circuit schematic diagram of the RS485 communication card reader is shown in FIG. 3. In fig. 3, four RS485 communication card readers 1 are shown, wherein one RS485 communication card reader 1 comprises a fifth RS485 communication chip U5, an eighth resistor R8, a thirteenth resistor R13, a twelfth resistor R12, a ninth resistor R9, a tenth resistor R10 and a sixth RS485 communication interface P6, the first pin of the fifth RS485 communication chip U5 is connected with the seventeenth pin of the main chip U2 through the eighth resistor, the second pin and the third pin of the fifth RS485 communication chip U5 are both connected with the sixty-second pin of the main chip U2, the fourth pin of the fifth RS485 communication chip U5 is connected with the sixteenth pin of the main chip U2 through the thirteenth resistor R13, the fifth pin of the fifth RS485 communication chip U5 is grounded, the seventh pin of the fifth RS485 communication chip 686u 8 is respectively connected with one end of the twelfth resistor R12 and the sixth pin of the ninth resistor R9, and the ninth resistor R9 is connected with the ninth interface P6, the sixth pin of the fifth RS485 communication chip U5 is connected with the other end of the twelfth resistor R12 and one end of the tenth resistor R10 respectively, the other end of the tenth resistor R10 is connected with the first pin of the sixth RS485 communication interface P6, and the eighth pin of the fifth RS485 communication chip U5 is connected with a +5V power supply. In this embodiment, the model of the fifth RS485 communication chip U5 is XR 33038.

The above only describes the circuit structure of one RS485 communication card reader 1, and the circuit structures of the other RS485 communication card readers 1 are the same.

When the number of the gate control circuits 3 is plural, the schematic circuit diagrams of the gate control circuits are as shown in fig. 4 and 5, fig. 4 is a schematic circuit diagram of two gate control circuits in the present embodiment, fig. 5 is a schematic circuit diagram of two other gate control circuits in the present embodiment, one of the gate control circuits 3 includes a first resistor R1, a first transistor Q1, a first diode D1, a first relay KV1, a second light emitting diode L D2, a first fifty resistor R50, and a first interface P9, wherein one end of the first resistor R1 is connected to the twentieth pin of the main chip U2, the other end of the first resistor R1 is connected to the base of the first transistor Q1, the emitter of the first transistor Q1 is grounded, the collector of the first transistor Q1 is connected to the anode of the first diode D1 and the second pin of the first relay, the cathode of the first diode D1 is connected to the fifth power supply pin of the first KV relay 1, the first diode D1 is connected to the anode of the first diode D1, and the cathode of the first diode D1 is connected to the first light emitting diode 1, the cathode of the first relay 1 is connected to the first relay HK pin 1, and the first interface P1 is connected to the first interface P1, the cathode of the first interface P1.

The above description merely describes the circuit configuration of one of the shutter control circuits 3, and the circuit configurations of the remaining shutter control circuits 3 are the same.

In this embodiment, four RS485 communication chips (U5, U6, U7, and U8)) operate simultaneously, and are connected to the same main chip U2, four groups of data are processed simultaneously on the main chip U2, and then the corresponding relays are controlled simultaneously through the IO ports to achieve parallel operation, P6, P7, P8, and P9 are all RS485 communication interfaces, data passes through the interfaces, then to the RS485 communication chip, then to the main chip U2, and after the main chip U2 receives the data, the relay switches of the corresponding gates are controlled through a protocol. The utility model discloses optimized the algorithm, every RS485 communication interface corresponds a gate, does not interfere with each other.

In a word, compared with the prior art, the utility model, greatly improved gate switch communication efficiency, it is little to have the time delay, with low costs, and the circuit is simple stable, advantages such as long service life.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The multi-channel RS485 communication gate control panel is characterized by comprising at least one RS485 communication card reader, a main chip with parallel and in-line capability and at least one gate control circuit, wherein the RS485 communication card reader is connected with the main chip, the gate control circuit is connected with the main chip, and each RS485 communication card reader corresponds to one gate.

2. The multi-channel RS485 communication gate control board of claim 1, wherein the model of the main chip is GD32F303_ 64.

3. The multi-channel RS485 communication gate control board according to claim 2, wherein when the number of the RS485 communication card readers is plural, one of the RS485 communication card readers includes a fifth RS485 communication chip, an eighth resistor, a thirteenth resistor, a twelfth resistor, a ninth resistor, a tenth resistor and a sixth RS485 communication interface, the first pin of the fifth RS485 communication chip is connected with the seventeenth pin of the main chip through the eighth resistor, the second pin and the third pin of the fifth RS485 communication chip are both connected with the sixteenth pin of the main chip, the fourth pin of the fifth RS485 communication chip is connected with the sixteenth pin of the main chip through the thirteenth resistor, the fifth pin of the fifth RS485 communication chip is grounded, the seventh pin of the fifth RS485 communication chip is connected with one end of the twelfth resistor and one end of the ninth resistor respectively, the other end of the ninth resistor is connected with a second pin of the sixth RS485 communication interface, a sixth pin of the fifth RS485 communication chip is connected with the other end of the twelfth resistor and one end of the tenth resistor respectively, the other end of the tenth resistor is connected with a first pin of the sixth RS485 communication interface, and an eighth pin of the fifth RS485 communication chip is connected with a +5V power supply.

4. The multi-channel RS485 communication gate control board of claim 3, wherein the fifth RS485 communication chip is model XR 33038.

5. The multi-channel RS485 communication gate control board according to claim 1, wherein when the gate control circuit is plural in number, the gate control circuit comprises a first resistor, a first triode, a first diode, a first relay, a second LED, a fiftieth resistor and a first interface, one end of the first resistor is connected to the twentieth pin of the main chip, the other end of the first resistor is connected to the base of the first triode, the emitter of the first triode is grounded, the collector of the first triode is connected to the anode of the first diode and the second pin of the first relay, respectively, the cathode of the first diode is connected to the fifth pin of the first relay and the +5V power supply, respectively, the third pin of the first relay is connected to the first pin of the first interface, and a fourth pin of the first relay is respectively connected with a sixth pin of the first relay, a second pin of the first interface and an anode of a second light-emitting diode, and a cathode of the second light-emitting diode is grounded through the fifty-th resistor.

6. The multi-channel RS485 communication gate control board of claim 5, wherein the first relay is type HK 23F.