CN218450611U - LED illumination master-slave equipment connection control system - Google Patents

Abstract

The utility model discloses a LED illumination master slave device connection control system, this system includes: the control host and the plurality of control slaves are respectively connected with and control at least one LED drive and lamp set; the control host is connected with the first control slave through a super-five type network cable, and the other control slaves are sequentially connected through the super-five type network cable; and a first 485 interface and a second 485 interface are respectively arranged in each control slave, the first 485 interface is connected with a super-five type network cable of a signal input end of the control slave, and the second 485 interface is connected with a super-five type network cable of a signal output end of the control slave. The 485 interface is connected and interacted through the vacant core of the super-five type network cable, therefore, the control signal interaction can be realized between the control host and the control slave machine and between the adjacent control slave machines through only one super-five type network cable, in addition, the control range is greatly expanded and the connection circuit layout is optimized by adopting the serial connection mode of the super-five type network cable and the 485 interface.

Description

LED illumination master-slave equipment connection control system

Technical Field

The utility model relates to a LED lighting control technical field, especially a LED illumination master slaver equipment connection control system.

Background

The LED light source is different from the traditional light source and is characterized in that the LED light source is an electronic device, has various characteristics of semiconductors, and is very easy to realize the function of adjusting light and color temperature, which is difficult to be finished by a plurality of traditional light sources, due to the color diversity of the LED. Due to the excellent characteristics of the LED, the LED is widely applied to the technical fields of energy-saving illumination, decorative illumination, LED display screens and the like. With the continuous improvement of the technical level, the LED light source control is developed to the current intelligent control from simple single-lamp control to group control. From the most common manual switch, to the future, a sound control switch and a light control switch through sound control and light induction appear, and a time control switch through a timing switch appears, along with the rapid development of integrated circuits and computers, system control capable of setting scenes appears, and the like, so that many types of illumination display intelligent control systems exist at present. An intelligent lighting display control system is a control system which integrates various analog-digital circuit control technologies, various control means and modern network information technology.

In the environment of industrial control and the like, 485 bus control is often used, and the device has the advantages of strong anti-interference capability, long transmission distance, high transmission speed and the like, wherein the farthest transmission distance can reach 1.2 km. And each independent LED dimming module is connected with the main control panel and the PC by using a 485 bus technology, so that remote control and human-computer interaction are realized. The multi-machine communication system formed by the RS485 mode adopts a master-slave mode structure, wherein a master machine controls a plurality of slave machines, and a singlechip used as the slave machines does not actively send commands or data, and all the slave machines are controlled by the master machine singlechip; in a multi-machine system, only one host computer is provided, and all the slave computers cannot communicate with each other, and even if information is exchanged, the information must be forwarded through the host computer. As shown in fig. 1, the distributed LED light source control system based on 485 bus adopts an industrial control communication network in the form of RS485 differential bus, and is composed of an upper microcomputer located in a master control instruction center and a single chip microcomputer located on each LED controller. The tail end of the bus is connected with a matching resistor which absorbs the reflected signal on the bus, so that the normal transmission signal has no burr. The value of the matching resistance should be comparable to the characteristic impedance of the bus. When no signal is transmitted on the bus, the bus is in a floating state and is easily affected by interference signals. A 10K resistor is connected between the positive end A + and the negative end B-of the differential signal on the bus; the negative terminal B-is connected to ground by a 10K resistor, forming a resistor network. When no signal is transmitted on the bus, the level of the positive terminal A + is about 3.2V, the level of the negative terminal B-is about 1.6V, even if interference signals exist, the initial signal 0 of serial communication is difficult to generate, and therefore the anti-interference capability of the bus is improved.

The RS485 differential bus is adopted to construct a master-slave communication structure of the LED control system, and the conversion hardware adopts the technology of automatically identifying the data flow direction, so that the data transmission direction can be automatically switched, and a communication handshake signal is not needed, so that the communication bus only consists of two connecting wires (namely a shielding twisted pair), the communication wiring is simplified, and the cost is saved; the failure rate of the communication line is reduced, and the reliability of the communication system is improved. However, we find that the farthest transmission distance of the bus can theoretically reach 1.2km, which is difficult to achieve in practice, and the branch length from each hanging point to the slave machines cannot exceed 30m generally, so that the control range of the system is limited, and the longer-range control beyond the range of 1.2km cannot be met, and in addition, the distance between two slave machines of the existing distributed control system based on 485 buses is limited by the bus length and the branch length, so that the spacing distance is limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a LED illumination principal and subordinate equipment connection control system, aims at solving the current limited technical problem of actual control range based on the distributed control system with 485 buses.

In order to solve the technical problem, the utility model provides a LED illumination master slaver equipment connection control system, this system includes: the control system comprises a control host and a plurality of control slaves, wherein the control slaves are respectively connected with and control at least one LED drive and lamp set;

the control host is connected with the first control slave through a super-five type network cable, and the rest control slaves are sequentially connected through the super-five type network cable; and a first 485 interface and a second 485 interface are respectively arranged in each control slave machine, the first 485 interface is connected with the super-five type network cable of the signal input end of the control slave machine, and the second 485 interface is connected with the super-five type network cable of the signal output end of the control slave machine.

Furthermore, the control slave comprises a processor chip, the first 485 interface and the second 485 interface, the ultra-five network cable is connected to the processor chip, the output end of the first 485 interface and the input end of the second 485 interface are respectively connected with the processor chip, and the processing chip is connected with and controls the LED driver and the lamp set.

Furthermore, a network switching chip is arranged in each control slave, the control host is connected to the input end of the network switching chip through the super-five type network cable, the output end of the network switching chip is connected to the network switching chip of another control slave, and the control host and the plurality of control slaves are sequentially connected in series and in interactive communication through the super-five type network cable and the network switching chip.

Specifically, the output end of the network switching chip of each control slave is connected to the processor chip through the super-five type network cable.

Further, hundred million network communication is adopted between the control host and the control slave, between adjacent control slaves, and between the network exchange chip and the processor chip, and the 1 st, 2 nd, 3 rd and 6 th wire cores of the super-five types of network cables are used for hundred million network signal interaction.

Furthermore, one end of the pin A and the pin B of the first 485 interface is connected with one group of the 4 th, 5 th or 7 th and 8 th wire cores of the input super-five-type network cable, and the other end of the pin A and the pin B of the first 485 interface is connected with the processor chip.

Furthermore, one end of the pin A and the pin B of the second 485 interface is connected with the processor chip, and the other end of the pin A and the pin B of the second 485 interface is connected with one group of the 4 th, 5 th, 7 th and 8 th wire cores of the output super-five-type network cable.

The super-five network cables are optional, the LED lighting master-slave device connection control system further comprises a plurality of power converters, and the power converters convert external mains supply into working voltages of the control slave machines, the LED driving devices and the lamp sets.

The utility model discloses technical scheme's beneficial effect:

the utility model discloses LED illumination principal and subordinate equipment connection control system, make the main control system and a plurality of control follow the machine and establish ties in proper order and form interactive network through adopting a super five types of net twines, set up the 485 interface in the machine through controlling, thereby make the main control system can discern each control from the machine, the 485 interface is connected the interaction through the vacant sinle silk of super five types of net twines, therefore, main control system and control are followed between the machine, adjacent control is followed and just can realize control signal interaction through a super five types of net twines between the machine, in addition, adjacent control is followed and is interacted through the 485 interface between the machine, the spacing distance between the machine is followed in the control has been expanded, adopt super five types of net twines and 485 interface series connection mode to greatly expand control range and optimized interconnecting link overall arrangement.

Drawings

FIG. 1 is a schematic diagram of a prior art 485 bus based distributed control system architecture;

fig. 2 is a schematic structural diagram of a connection control system for LED lighting master-slave devices according to an embodiment of the present invention;

fig. 3 is a block diagram of a control slave according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a connection state between an RS485 interface and a super-five network cable according to an embodiment of the present invention;

10-a control host, 20-a control slave, 30-an LED driving and lamp group, 40-a power converter and 50-a super-five network cable; 21-processor chip, 22-first 485 interface, 23-second 485 interface and 24-network switching chip.

The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

As shown in fig. 1, in multi-machine communication, each slave is assigned with a slave address, and when serial communication is performed between the master and the slave, the master usually calls a certain slave address first, wakes up the called slave, and then performs data exchange between the master and the slave. And the slave machines which are not called continue to work respectively. The complete communication process is divided into 3 phases, namely master inquiry, slave response and link release. In the master inquiry stage, the master transmits slave address codes, commands, data and check codes to a designated slave in a frame form; in the slave response stage, the slave interprets the received command code and organizes corresponding frame information to return to the host; in the link release stage, the slave clears the receiving buffer area and related variables to prepare for the next communication with the host. Any one complete communication process is initiated by the master, which is addressed to the slave.

Example 1

As shown in fig. 2 and 3, the embodiment of the utility model provides a LED lighting master slave device connection control system, this system includes: the LED driving and lighting system comprises a control host 10 and a plurality of control slaves 20, wherein the control slaves 20 are respectively connected with and control at least one LED driving and lighting set 30;

the control master machine 10 is connected with a first control slave machine 20 through a super-five type network cable 50, and the other control slave machines 20 are sequentially connected through the super-five type network cable 50; each control slave 20 is internally provided with a first 485 interface 22 and a second 485 interface 23, the first 485 interface 22 is connected with the super-five type network cable 50 at the signal input end of the control slave 20, and the second 485 interface 23 is connected with the super-five type network cable 50 at the signal output end of the control slave 20.

According to the communication protocol of the 485 interface, each 485 interface can be endowed with a communication address, so that a control signal sent by the control host is matched with a corresponding address of a control slave, and after the called control slave is awakened, data exchange is carried out between the master and the slave. Therefore, data interaction between the control master 10 and the control slave 20 and between adjacent control slaves 20 is realized through a super five network cable.

As shown in fig. 3, the control slave 20 includes a processor chip 21, the first 485 interface 22 and the second 485 interface 23, the super-five network cable 50 is connected to the processor chip 21, the output end of the first 485 interface 22 and the input end of the second 485 interface 23 are respectively connected to the processor chip 21, and the processor chip 21 is connected to control the LED driving and light group 30.

Specifically, a network switching chip 24 is arranged in each of the control slaves 10, the control master 10 is connected to an input end of the network switching chip 24 through the super-five network cable 50, an output end of the network switching chip 24 is connected to the network switching chip 24 of another control slave 20, and the control master 10 and the plurality of control slaves 20 are sequentially in series connection and interactive communication through the super-five network cable 50 and the network switching chip 24. A network switching device is a device that expands the network by providing more connection ports in a sub-network to connect more devices.

Specifically, the output end of the network switch chip 24 of each control slave 20 is connected to the processor chip 21 through the super five network cable 50.

As shown in fig. 4, hundred mega network communication is adopted between the master controller 10 and the slave controllers 20, between adjacent slave controllers 20, and between the network switch chip 24 and the processor chip 21, and the 1 st, 2 nd, 3 th, and 6 th cores of the super-five types of network cables 50 are used for hundred mega network signal interaction.

Specifically, one end of the pin a and the pin B of the first 485 interface 22 are connected to one group of the 4 th, 5 th, 7 th, and 8 th cores of the input super-five-type network cable 50, and the other end of the pin a and the pin B of the first 485 interface 22 are connected to the processor chip 21.

Specifically, one end of the pin a and one end of the pin B of the second 485 interface 23 are connected to the processor chip 21, and the other end of the pin a and the other end of the pin B of the second 485 interface 23 are connected to one group of the 4 th, 5 th, 7 th and 8 th cores of the output super-five-type network cable 50.

"super-five type" refers to super-five type Unshielded Twisted Pair (UTP-Unshielded Twisted Pair) and super-five type shielded Twisted Pair. Unshielded twisted pair cable is constructed of multiple twisted pairs and a plastic sheath. The super-five network cable 50 connects the adjacent first 485 interface 22 and second 485 interface 23 with each other, so that the control master 10 can identify the address of each control slave 20, and in addition, the transmission distance between the adjacent first 485 interface 22 and second 485 interface 23 can also reach 1.2km theoretically, thereby greatly expanding the spacing distance between the adjacent control slaves 20.

Optionally, the LED lighting master-slave device connection control system further includes a power converter 40, where the power converter 40 converts an external commercial power into a working voltage of each of the control slave 20 and the LED driving and lamp set 30.

The utility model discloses LED illumination principal and subordinate equipment connection control system, make the main control system and a plurality of control slave machines establish ties in proper order and form mutual network through adopting a super five types of net twine, through setting up the 485 interface in the control slave machine, thereby make the main control system can discern each control slave machine, the 485 interface is connected the interaction through the vacant sinle silk of super five types of net twine, therefore, main control system and control slave machine between, adjacent control slave machine only just can realize control signal interaction through a super five types of net twine, in addition, adjacent control slave machine is interacted through the 485 interface between the machine, control slave machine interval distance has been expanded, adopt super five types of net twine and 485 interface series connection mode to greatly expand control range and optimized interconnecting link overall arrangement.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "row", "column", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present patent application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," "secured," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present patent application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Claims (8)

1. An LED lighting master-slave device connection control system, the system comprising: the control system comprises a control host and a plurality of control slaves, wherein the control slaves are respectively connected with and control at least one LED drive and lamp set;

the control host is connected with the first control slave through a super-five type network cable, and the rest control slaves are sequentially connected through the super-five type network cable; and a first 485 interface and a second 485 interface are respectively arranged in each control slave machine, the first 485 interface is connected with the super-five type network cable of the signal input end of the control slave machine, and the second 485 interface is connected with the super-five type network cable of the signal output end of the control slave machine.

2. The LED lighting master-slave device connection control system of claim 1, wherein the control slave comprises a processor chip, the first 485 interface and the second 485 interface, the super-five type network cable is connected to the processor chip, the output end of the first 485 interface and the input end of the second 485 interface are respectively connected with the processor chip, and the processor chip is connected to control the LED driver and the lamp set.

3. The LED lighting master-slave device connection control system according to claim 2, wherein a network switch chip is disposed in each control slave, the control master is connected to an input end of the network switch chip through the super-five network cable, an output end of the network switch chip is connected to the network switch chip of another control slave, and the control master and the plurality of control slaves are sequentially in series connection and in interactive communication through the super-five network cable and the network switch chip.

4. The LED lighting master-slave device connection control system of claim 3, wherein the output end of the network switch chip of each control slave is connected to the processor chip through the super-five network cable.

5. The LED lighting master-slave device connection control system according to claim 3, wherein hundred million network communication is adopted between the control master and the control slave, between adjacent control slaves and between the network switching chip and the processor chip, and the 1 st, 2 nd, 3 th and 6 th wire cores of the super-five network cables are used for hundred million network signal interaction.

6. The LED lighting master-slave device connection control system according to claim 5, wherein one end of the pins A and B of the first 485 interface is connected with one group of the 4 th, 5 th or 7 th, 8 th wire cores of the input super-five type network cable, and the other end of the pins A and B of the first 485 interface is connected with the processor chip.

7. The LED illumination master-slave device connection control system as claimed in claim 5, wherein one end of the pins A and B of the second 485 interface is connected with the processor chip, and the other end of the pins A and B of the second 485 interface is connected with one group of the 4 th, 5 th or 7 th, 8 th wire cores of the output super-five network cable.

8. The LED lighting master-slave device connection control system of claim 1, further comprising a plurality of power converters, wherein the power converters convert external mains power into operating voltages of each of the control slave, the LED driver and the lamp set.

Images