CN105025113A - A Distributed Table and Chair Arrangement Control System - Google Patents

Abstract

A distributed table and chair arrangement control system, including electrically foldable tables and chairs, is characterized in that: the system also includes a distributed network client, a table and chair arrangement control server, an RS485 bus controller, and a table and chair control unit. The network client is connected with the table and chair layout control server through the Internet, the network client and the table and chair layout control server form a B/S communication structure, and the table and chair layout control server is provided with an RS485 bus controller. The RS485 bus controller is connected with several table and chair control units through the primary RS485 bus, and the table and chair control units are fixed on the electric foldable tables and chairs.

Description

A Distributed Table and Chair Arrangement Control System

technical field

Internet intelligent control, mechatronics.

Background technique

With the rapid development of society, people's demand for work and living space shows a rapid growth trend. However, the current situation is that my country's land resources are in short supply, and the land supply in some areas has gradually decreased or even stopped. In addition, the overall high housing prices have further intensified the contradiction between people's demand for space and supply. And building more and higher space can no longer meet the needs of future development. Therefore, improving the utilization rate of existing space is an important way to solve the contradiction. Using a plurality of combined liftable and foldable table and chair units, using a distributed table and chair layout control system, the space is intelligently arranged according to the user's requirements, thereby greatly improving the utilization rate of the space.

Most of the tables and chairs in the existing building space are fixedly arranged, which can only be used for a single purpose, and the utilization rate of the space is very low. Some are arranged manually, but it is laborious and time-consuming.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a novel lift table and chair device, which adopts a modular design, can be used in various areas, saves space, has a simple structure, is easy to use, and is easy to assemble and match.

To achieve the above objectives, the present invention is achieved through the following technical solutions: a distributed table and chair arrangement control system, including electrically foldable tables and chairs, characterized in that: the system also includes a distributed network client, a table and chair arrangement Control server, RS485 bus controller, table and chair control unit fixed on the electric foldable table and chair, the distributed network client is connected with the table and chair layout control server through the Internet, and the network client communicates with the table and chair The chair arrangement control server constitutes a B/S communication structure, and the table and chair arrangement control server is provided with an RS485 bus controller, and the RS485 bus controller is connected to several table and chair control units through a primary RS485 bus.

The RS48 bus controller can be connected to a 485 hub through a primary RS485 bus, and the 485 hub can be connected to several table and chair control units through a secondary RS485 bus.

The maximum number of desks and chairs control units and or 485 hubs that can be connected to the primary RS485 bus is 256, and the maximum number of desks and chairs control units that can be connected to the secondary RS485 bus is 256.

The workflow of the table and chair arrangement control server is as follows:

a) Receive the access request and control information sent by the distributed network client;

b) Judging whether it is a legal access request;

c) If it is a legitimate access request, process the control information;

d) Send the processed control information to the table and chair control unit to implement the control of the electrically foldable tables and chairs;

e) The table and chair control unit sends the table and chair status information to the table and chair arrangement control server;

f) The table and chair layout control server sends the table and chair status information to the distributed network client.

The table and chair control unit includes a controller, a table and chair state detection module, a table and chair height detection module, a wireless remote control transmitting module, a wireless remote control receiving module, an RS485 interface module, a motor drive module and a card position drive module. The unit work steps are:

a) The RS485 interface module receives the address information sent by the table and chair layout control server and performs an address matching check, or directly receives the control information sent by the wireless remote control receiving module;

b) If the address information of the table and chair layout control server is legal information, the single-chip microcomputer processes the control information of the table and chair layout control server; if it is the control information sent by the wireless remote control module, then processes the control information of the wireless remote control module.

c) According to the type of control information analyzed by the single-chip microcomputer, the table and chair state detection module detects whether the table and chair are raised, whether the back of the chair is unfolded, and whether the rear desktop is unfolded, and the motor drive module is used to drive the table and chair lifting electric push rod and the chair back motor Working with the rear desktop motor, the three control sub-processes of table and chair lifting, chair back, and rear desktop expansion or retraction are completed respectively.

d) When the table and chair height detection module detects the raised height of the table and chair, and the back of the chair and or the rear desktop are unfolded in place, the card position drive module drives the card position to work with the electromagnet to fix the table and chair, so that during use Play the main force, and play a role in protecting the motor and the corresponding transmission device.

e) Feedback the height of the tables and chairs and the unfolded and closed states to the table and chairs layout control server through the RS485 interface or to the wireless operation terminal through the wireless remote control transceiver module.

The invention provides a distributed table and chair arrangement control system, which can realize the intelligent distribution of tables and chairs through software according to the user's requirements, and then the control system processes the information of the distribution plan, and sends commands to each table and chair by means of the communication system One table and chair module, the table and chair module can realize the lifting and lowering of the two sets of built-in tables and chairs, the stretching of the back of the chair, the unfolding of the rear desktop and other actions according to the command, and the coordinated work of multiple table and chair modules can complete the intelligence of the overall space layout. When the tables and chairs can all fall down, people can walk freely on it. The system can maximize the utilization rate of building space, and the transformation speed of space function is fast, without manpower arrangement. It can be used in conference centers, hotels, restaurants, classrooms and other places where tables and chairs are densely arranged.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the general structural diagram of control system of the present invention;

Fig. 2 is a structural diagram of the table and chair control unit of the present invention;

Fig. 3 is the general work flowchart of the present invention;

Fig. 4 is a program flow chart of the table and chair control unit of the present invention;

Fig. 5 is a flowchart of table and chair lifting of the present invention;

Fig. 6 is a flowchart of unfolding or retracting the chair back of the present invention;

Fig. 7 is a flow chart of the desk and chair rear desktop of the present invention;

Detailed ways:

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The user accesses the server through the network client (PC, mobile phone and other network terminals), and sends the control information to the server through the Internet. With the help of the expert database of the server's space allocation scheme, the information is processed, and the command is sent through the RS485 bus. To each desk and chair control unit, the desk and chair control unit can realize the lifting and lowering of the two sets of built-in desks and chairs, the stretching of the back of the chair, the unfolding of the rear desktop and other actions according to the command, and the coordination of multiple desk and chair modules can be completed The layout of the overall space. After the space layout is completed, each table and chair control unit sends the status information of the table and chairs to the server through the RS485 bus. After the information is summarized and processed, it is fed back to the user through the Internet.

Installation and commissioning personnel or users can also control the movement of individual tables and chairs through wireless remote control.

The table and chair control unit mainly includes a controller, a table and chair state detection module, a table and chair height detection module, a wireless remote control transmitter module, a wireless remote control receiver module, an RS485 interface module, a motor drive module and a slot drive module. The control unit is embedded in the lifting table and chair module, and can receive information from the table and chair arrangement control module through the RS485 interface, or send control commands to the controller through the wireless remote control module, and realize the adjustment of the table and chair according to the user's intention. Control of lifting height (chair height, table height), and control of the unfolding and retracting motion of the chair back and rear table top. And feed back the height of the tables and chairs and the unfolded and closed state to the table and chairs layout control module through the RS485 interface.

The table and chair state detection module mainly detects whether the table and chair are raised, whether the back of the chair is unfolded, and whether the rear desktop is unfolded by installing a position sensor at a specific position.

The table and chair height detection module is mainly to install several position sensors at specific positions to detect the raised height of the table and chair, so as to ensure that the table and chair can meet the use requirements after being raised.

The wireless remote control transmitter and receiver module is used to facilitate the individual control of the lift table and chair unit.

The RS485 interface module is used to complete the level conversion between TTL level and RS485 communication, and realize the information transmission between the control module and the table and chair layout control module.

The motor drive module is mainly used to drive the table and chair lifting electric push rod, the chair back motor and the rear desktop motor to work.

The card position drive module is mainly used to drive the card position with an electromagnet. When the table and chair are raised to the required height, the back of the chair is unfolded, and the rear desktop is unfolded in place, the card position mechanism will fix the table and chair under the action of the electromagnet. , so that it plays a major role in the use process and protects the motor and the corresponding transmission device.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments The recorded technical solutions are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. distributed tables and chairs arrange control system, comprising can the tables and chairs of electric foldable, it is characterized in that: described system also comprises distributed network client, tables and chairs arrange Control Server, RS485 bus control unit, be fixed on described can tables and chairs control unit on electric foldable tables and chairs, by the Internet and tables and chairs, described distributed network client arranges that Control Server is connected, with tables and chairs, described networking client is logical arranges that Control Server forms B/S communication structure, described tables and chairs arrange that Control Server is provided with RS485 bus control unit, described RS485 bus control unit is connected with some tables and chairs control units by one-level RS485 bus.

2. the distributed tables and chairs of one according to claim 1 arrange control system, it is characterized in that: described RS48 bus control unit is connected with 485 hubs by one-level RS485 bus, described 485 hubs are connected with some tables and chairs control units by secondary RS485 bus.

3. the distributed tables and chairs of one according to claim 2 arrange control system, it is characterized in that: described one-level RS485 bus can connection control tables and chairs control unit and or the quantity of 485 hubs be 256 to the maximum, the quantity that described secondary RS485 bus can connect tables and chairs control unit is 256 to the maximum.

4. the distributed tables and chairs of one according to claim 1 arrange control system, it is characterized in that: described tables and chairs arrange that Control Server workflow is:

Receive access request and control information that described distributed network client sends;

Determine whether Lawful access request;

If be Lawful access request, then processing control information;

Control information after transmission processing, to tables and chairs control unit, is implemented can the control of tables and chairs of electric foldable;

Tables and chairs control unit sends tables and chairs state information and arranges Control Server to tables and chairs;

Tables and chairs arrange that Control Server sends tables and chairs state information to distributed network client.

5. the distributed tables and chairs of one according to claim 1 arrange control system, it is characterized in that: described tables and chairs control unit comprises single-chip microcomputer, tables and chairs state detection module, tables and chairs height detection module, wireless remote control transmitter module, wireless remote control receiver module, RS485 interface module, motor drive module and screens driver module, described tables and chairs control unit job step is:

A) described RS485 interface module receives address information that tables and chairs arrange that Control Server sends and to go forward side by side row address matching check, or directly receives the control information of described wireless remote control receiver module transmission;

If b) tables and chairs arrange that Control Server address information is legal information, then tables and chairs described in described single-chip microcomputer process arrange the control information of Control Server; If the control information that wireless remote control module sends, then process the control information of wireless remote control module;

C) according to the type of the control information of single-chip microcomputer parsing, tables and chairs state detection module detects whether tables and chairs rise, whether the chair back launches, whether rearmounted desktop launches, drive tables and chairs lifting electric push rod, chair back motor and rearmounted desktop machine operation by motor drive module, complete respectively tables and chairs lifting, the chair back, rearmounted desktop expansion or pack up three and control sub-processes;

D) when tables and chairs height detection module detect tables and chairs rise height, the chair back and or rearmounted desktop launch put in place after, screens electricity consumption magnet works is driven by screens driver module, fix tables and chairs, make in use to play mainly stressed, and motor and corresponding transmission device are played to the effect of protection;

F) tables and chairs height and expansion closure state are fed back to described tables and chairs by RS485 interface to arrange Control Server or feed back radio operation end by wireless remote control transmitter module.