Movable stand control system

Abstract

The utility model provides a movable stand control system which comprises a bus host module, a drive control module and a user terminal, the bus host module is provided with a bus communication interface, and a bus is laid outwards through the bus communication interface; the driving control module is used for driving the movable stand unit to move, and the driving control module is mounted on the bus and is in communication connection with the bus host module; the user terminal is in communication connection with the bus host module so as to send an input signal of a user to the bus host module, and the bus host module sends a corresponding signal to the corresponding driving control module through a bus according to the input signal so as to drive the movable stand unit to move. According to the utility model, through the bus technology, the structure of the movable stand control system is greatly simplified, the actual wiring is simplified, and the expandability of the movable stand control system can be greatly improved; and meanwhile, the user can group a plurality of movable stand units and set a preset scene, so that linkage is realized.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment, and in particular to a control system for movable grandstands. Background Technology

[0002] To enable sports venues to host various types of competitions and other commercial activities, and to adapt their use as needed to maximize venue utilization, movable grandstands are the optimal choice for meeting the multi-functional requirements of sports venues. The advantages of movable grandstands lie in their high flexibility and safety. Their multi-functional conversion modes can meet the requirements of different events or activities, allowing limited space to be used in virtually any scenario.

[0003] However, each unit of the existing movable grandstand is relatively independent, requiring operators to operate them one by one. Centralized control and scene linkage are not possible, making it not intelligent enough. Furthermore, the wiring of the existing movable grandstand is complex, increasing the difficulty of initial installation and subsequent maintenance. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a movable grandstand control system. Through bus technology, it greatly simplifies the structure of the movable grandstand control system, simplifies actual wiring, makes the structure of the movable grandstand control system clearer, and greatly improves the scalability of the movable grandstand control system. At the same time, users can group multiple movable grandstand units and set preset scenes to achieve linkage.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A movable grandstand control system is used to drive and control the movement of movable grandstand units within a movable grandstand, including...

[0007] The bus host module has a bus communication interface and lays out a bus through the bus communication interface.

[0008] A drive control module is used to drive the movement of the movable grandstand unit, and it is connected to the bus and communicates with the bus host module.

[0009] And a user terminal, which is communicatively connected to the bus host module to send the user's input signal to the bus host module. The bus host module, based on the input signal, sends a corresponding signal to the corresponding drive control module via the bus to drive the active grandstand unit to move.

[0010] Using the above technical solution, the user can send control commands to the bus host module by operating the user terminal. After receiving the control commands, the bus host module sends the corresponding command signals to the corresponding drive control module through the bus. The drive control module drives the movable grandstand unit to move to the position required by the user according to the command signals.

[0011] The movable grandstand has multiple movable grandstand units, and the movable grandstand control system is equipped with multiple drive control modules to drive and control the multiple movable grandstand units. Specifically, one drive control module drives and controls one movable grandstand unit, or multiple movable grandstand units are divided into different groups, and one drive control module drives and controls one group of movable grandstand units.

[0012] The above technical solution, by setting up the bus host module and the bus, can greatly simplify the structure of the active grandstand control system, simplify the actual wiring, make the structure of the active grandstand control system clearer, and greatly improve the scalability of the active grandstand control system. That is, if an active grandstand unit needs to be added later, only the drive control module needs to be added and connected to the bus.

[0013] Furthermore, by employing bus technology, users can group multiple active grandstand units and set preset scenes to facilitate user operation and achieve the desired effect with a single click.

[0014] Furthermore, the drive control module includes a control unit and a drive unit. The control unit is mounted on the bus and communicates with the bus host module. The drive unit is used to drive the movable grandstand unit to move. The control unit is connected to the drive unit to control the working state of the drive unit.

[0015] By adopting the above technical solution, the structure of the drive control module is made more reasonable; the control unit controls the working state of the drive unit to achieve drive control of the movable grandstand unit.

[0016] Furthermore, the drive unit includes a drive motor for driving the movement of the movable grandstand unit, and a motor drive circuit for driving and controlling the forward and reverse rotation of the drive motor;

[0017] The drive motor is a three-phase AC motor. The motor drive circuit includes a forward contactor, a reverse contactor, and a motor drive auxiliary circuit structure. L1, L2, and L3 of the three-phase power supply are respectively connected to the U, V, and W terminals of the three-phase AC motor through the normally open switch of the forward contactor. L1, L2, and L3 of the three-phase power supply are respectively connected to the W, V, and U terminals of the three-phase AC motor through the normally open switch of the reverse contactor. The control unit controls the coil of the forward contactor or the coil of the reverse contactor to be energized through the motor drive auxiliary circuit structure.

[0018] The above technical solution makes the structure of the drive unit more reasonable. The extension and retraction of the movable grandstand unit are controlled by controlling the forward and reverse rotation of the drive motor. Specifically, when the control unit energizes the coil of the forward contactor through the motor drive auxiliary circuit structure, the normally open switch of the forward contactor closes. At this time, L1, L2, and L3 of the three-phase power supply are connected to the U, V, and W terminals of the three-phase AC motor, respectively, i.e., L1 is connected to the U terminal, L2 to the V terminal, and L3 to the W terminal, and the drive motor rotates forward. When the control unit energizes the coil of the reverse contactor through the motor drive auxiliary circuit structure, the normally open switch of the reverse contactor closes. At this time, L1, L2, and L3 of the three-phase power supply are connected to the W, V, and U terminals of the three-phase AC motor, respectively, i.e., L1 is connected to the W terminal, L2 to the V terminal, and L3 to the U terminal, and the drive motor rotates in reverse. In the above technical solution, the forward and reverse contactors can control the high-voltage drive circuit through low-voltage control signals, which is reasonable and reliable.

[0019] A thermal overload relay coil is connected in series between the three-phase power supply and the three-phase AC motor. The normally closed switch of the thermal overload relay is connected in series in the circuit where the forward contactor coil and the reverse contactor coil that control the three-phase AC motor are located.

[0020] Furthermore, the motor drive auxiliary circuit structure includes a forward rotation relay and a reverse rotation relay. The control power supply is connected to the coil of the forward rotation contactor through the normally open switch of the forward rotation relay, the control power supply is connected to the coil of the reverse rotation contactor through the normally open switch of the reverse rotation relay, the control power supply is connected to the coil of the forward rotation relay through the forward rotation control switch of the control unit, and the control power supply is connected to the coil of the reverse rotation relay through the reverse rotation control switch of the control unit.

[0021] By adopting the above technical solution, the structure of the motor drive auxiliary circuit is made more reasonable. The control unit controls the energization of the forward rotation relay coil or the reverse rotation relay coil to control the energization of the forward rotation contactor coil or the reverse rotation contactor coil. Specifically, when the forward rotation control switch of the control unit is closed, the coil of the forward rotation relay is energized by the control power supply, and the normally open switch of the forward rotation relay is closed. At this time, the coil of the forward rotation contactor is energized by the control power supply. When the reverse rotation control switch of the control unit is closed, the coil of the reverse rotation relay is energized by the control power supply, and the normally open switch of the reverse rotation relay is closed. At this time, the coil of the reverse rotation contactor is energized by the control power supply. In the above technical solution, the reverse rotation contactor and the forward rotation contactor are used for power isolation of the motor drive auxiliary circuit structure, avoiding the formation of loops in the complex motor drive auxiliary circuit structure and the adverse effects between them.

[0022] Specifically, any two phases of the three-phase power supply are used to obtain the control power supply through a transformer. A phase sequencer is connected to the three-phase power supply, and the normally closed switch of the phase sequencer is connected in series between the three-phase power supply and the transformer.

[0023] Furthermore, one drive control module can drive and control multiple movable grandstand units. The number of drive motors in the drive unit matches the number of movable grandstand units that one drive control module can drive and control, and they drive in a one-to-one correspondence. The number of forward and reverse contactors matches the number of drive motors, and they drive in a one-to-one correspondence. The control unit controls the energization of the coil of the forward contactor or the coil of the reverse contactor corresponding to the drive motor that needs to work through the motor drive auxiliary circuit structure to control the drive motor.

[0024] By adopting the above technical solution, one drive control module can drive and control multiple active grandstand units, which simplifies the structure. Specifically, one drive control module can both synchronously drive and control the activities of multiple active grandstand units and individually control the activities of one or several active grandstand units.

[0025] Furthermore, the motor drive auxiliary circuit structure includes a motor enable relay. The number of motor enable relays matches the number of drive motors in the drive unit and corresponds one-to-one. The control unit has a number of motor enable control switches that match the number of motor enable relays and correspond one-to-one. The coil of each motor enable relay is connected to the control power supply through the motor enable control switch corresponding to the control unit. The normally open switch of the motor enable relay is connected in series in the circuit where the forward contactor coil and the reverse contactor coil corresponding to the drive motor are located.

[0026] By adopting the above technical solution, the control unit controls the energization and de-energization of the relays by controlling the motor to control whether the corresponding forward contactor coil and the reverse contactor coil are allowed to be energized, so as to realize that only the drive motor that needs to work can work. Specifically, in the control circuit of a certain drive motor, since the normally open switch of the forward relay and the normally open switch of the motor enable relay corresponding to the drive motor are both connected in series in the circuit where the forward contactor coil of the drive motor is located, the forward contactor coil of the drive motor can only be energized when the coil of the forward relay is energized and the coil of the motor enable relay corresponding to the drive motor is energized. Since the normally open switch of the reverse relay and the normally open switch of the motor enable relay corresponding to the drive motor are both connected in series in the circuit where the reverse contactor coil of the drive motor is located, the reverse contactor coil of the drive motor can only be energized when the coil of the reverse relay is energized and the coil of the motor enable relay corresponding to the drive motor is energized. The above technical solution is reasonable and reliable, and has a simple structure.

[0027] Furthermore, in the forward contactor and the reverse contactor used to control the same drive motor, the normally closed switch of the forward contactor is connected in series in the circuit where the coil of the reverse contactor is located, and the normally closed switch of the reverse contactor is connected in series in the circuit where the coil of the forward contactor is located.

[0028] By adopting the above technical solution, interlocking is achieved between the forward contactor and the reverse contactor used to control the same drive motor. That is, when the coil of the forward contactor is energized, the normally closed switch of the forward contactor is opened to prevent the coil of the reverse contactor from being energized; when the coil of the reverse contactor is energized, the normally closed switch of the reverse contactor is opened to prevent the coil of the forward contactor from being energized. This effectively prevents the coils of the forward contactor and the reverse contactor from being energized simultaneously.

[0029] Furthermore, the active grandstand control system includes a position detection component for detecting the position of the active grandstand unit, and the number of the position detection components matches the number of active grandstand units. The position detection component is connected to the drive control module to feed back the position information of the active grandstand unit to the drive control module, and the drive control module determines whether the active grandstand unit has moved into position based on the position information of the active grandstand unit.

[0030] By adopting the above technical solution, the active grandstand control system becomes more reasonable, and the position of the active grandstand unit becomes more controllable. Specifically, when a user issues a command through the user terminal, the drive control module drives the active grandstand unit to move, the position detection component detects the position information of the active grandstand unit and feeds it back to the drive control module, and when the active grandstand unit moves to the user's expected position, the drive control module stops driving the active grandstand unit.

[0031] Furthermore, the position detection component includes a fully extended limit switch triggered when the movable grandstand unit is fully extended, and a fully retracted limit switch triggered when the movable grandstand unit is fully retracted; the normally closed switch of the fully extended limit switch is connected in series in the circuit of the coil of the forward contactor corresponding to the drive motor of the movable grandstand unit, and the normally closed switch of the fully retracted limit switch is connected in series in the circuit of the coil of the reverse contactor corresponding to the drive motor of the movable grandstand unit.

[0032] By adopting the above technical solution, the position detection component is more reasonable, and its structure is simple and reliable. Specifically, when the coil of the forward contactor corresponding to the drive motor of the movable grandstand unit is energized to drive the movable grandstand unit to extend to the fully extended state, the movable grandstand unit will trigger the fully extended limit switch, causing the normally closed switch of the fully extended limit switch to open. At this time, the coil of the forward contactor corresponding to the drive motor of the movable grandstand unit is de-energized, that is, the drive motor of the movable grandstand unit stops rotating forward, and the movable grandstand unit stops moving in the fully extended state.

[0033] When the coil of the reversing contactor corresponding to the drive motor of the movable grandstand unit is energized, causing the drive motor to drive the movable grandstand unit to retract to a fully retracted state, the movable grandstand unit will trigger the fully retracted limit switch, causing the normally closed switch of the fully retracted limit switch to open. At this time, the coil of the reversing contactor corresponding to the drive motor of the movable grandstand unit is de-energized, that is, the drive motor of the movable grandstand unit stops reversing, and the movable grandstand unit stops moving in the fully retracted state.

[0034] Furthermore, the position detection component also includes several intermediate position limit switches, which are disposed between the fully extended limit switch and the fully retracted limit switch. The control unit is connected to the intermediate position limit switches to obtain the position information of the movable grandstand unit to determine whether the movable grandstand unit has moved into position.

[0035] Using the above technical solution, the movable grandstand unit will trigger the intermediate position limit switch during its movement to indicate its current position. The control unit will determine whether the user's expected position has been reached based on the position information of the movable grandstand unit. If it has been reached, the drive of the movable grandstand unit will be stopped. Specifically, this is achieved by controlling the enable relay of the corresponding drive motor to de-energize, so as to realize the partial extension or partial retraction of the movable grandstand, making the movable grandstand more practical.

[0036] Furthermore, the movable grandstand control system includes an input module for converting contact signals into bus protocol signals, the fully extended limit switch and / or the fully retracted limit switch and / or the intermediate position limit switch are connected to the input module, and the input module is mounted on the bus.

[0037] By adopting the above technical solution, the control system of the movable grandstand is made more reasonable; the control unit can not only obtain the status of the fully extended limit switch, the fully retracted limit switch, and the intermediate position limit switch through IO connection, but also obtain the status of the fully extended limit switch, the fully retracted limit switch, and the intermediate position limit switch through the cooperation of the input module and the bus, which increases the reliability of the system.

[0038] Furthermore, the input module can communicate with the bus host module via the bus to feed back the status of the fully extended limit switch, the fully retracted limit switch, and the intermediate position limit switch to the bus host module, so as to facilitate the acquisition of user terminal information.

[0039] Furthermore, the control unit includes a first switch module and a second switch module. The first switch module has the forward rotation control switch, the reverse rotation control switch, and the motor enable control switch. The second switch module is connected to the fully extended limit switch and / or the fully retracted limit switch and / or the intermediate position limit switch. Both the first switch module and the second switch module are connected to the bus and communicate with each other through the bus.

[0040] By adopting the above technical solution, the control unit becomes more reasonable, and the first switch module and the second switch module are distinguished according to their functions to facilitate later maintenance.

[0041] Furthermore, it includes a detection device for detecting whether a human body or object has entered the movable grandstand unit;

[0042] The drive control module is connected to the detection device to obtain the detection result of the detection device, and / or the active grandstand control system includes an input module for converting contact signals into bus protocol signals, the detection device is connected to the input module, the input module is mounted on the bus, and the drive control module obtains the detection result of the detection device through the bus;

[0043] The drive control module controls whether the active grandstand unit is allowed to move based on the detection results of the detection device.

[0044] Using the above technical solution, when the detection device detects a human body or object entering the movable grandstand unit, if the movable grandstand unit is in motion, the drive control module will stop driving the movable grandstand unit to avoid accidents caused by collisions that could result in injury to the human body or damage to objects; thus making the movable grandstand control system safer. Specifically, one detection device can detect multiple movable grandstand unit areas, or one detection device can detect only one movable grandstand unit area, or multiple detection devices can detect one movable grandstand unit area; the intermediate position limit switch, fully extended limit switch, fully retracted limit switch, and detection device corresponding to the movable grandstand unit driven by the same drive control module share a single input module.

[0045] The input module can communicate with the bus host module through the bus to feed back the detection information of the detection device to the bus host module, so as to facilitate the acquisition of information by the user terminal.

[0046] Furthermore, the detection device employs a diffuse reflection sensor and is installed at the front of the movable grandstand unit.

[0047] The above technical solution makes the detection device more reasonable.

[0048] Furthermore, the bus host module includes a bus host and a communication structure. The bus host has the bus communication interface, and the user terminal communicates with the bus host through the communication structure.

[0049] The above technical solution makes the bus host module more reasonable.

[0050] Furthermore, the communication structure is wired to the bus host, and the user terminal is wirelessly connected to the communication structure.

[0051] The above technical solution makes the bus host module more reasonable; and the user terminal is wirelessly connected to the communication structure, which allows the user terminal to move freely and facilitates actual use by the user.

[0052] Furthermore, the communication structure includes an AC controller and one or more wireless APs, wherein the AC controller is wired to the bus host, the wireless APs are wired to the AC controller, and the user terminal is wirelessly connected to the wireless APs.

[0053] Specifically, the AC controller is connected to the bus host via TCP / IP protocol, the wireless AP is connected to the AC controller via TCP / IP protocol, and the user terminal is connected to the wireless AP via WIFI.

[0054] By adopting the above technical solution, the bus host module becomes more reasonable, and the form of the AC controller and the wireless AP can greatly increase the communication range of the communication structure and avoid the user terminal losing connection during movement.

[0055] Furthermore, the drive control module includes a forward manual switch and a reverse manual switch. The control power supply is connected to the coil of the forward relay through the forward manual switch, and the control power supply is connected to the coil of the reverse relay through the reverse manual switch.

[0056] The drive control module also includes a motor enable manual switch, and the number of motor enable manual switches matches the number of motor enable relays and corresponds one-to-one. The coil of each motor enable relay is connected to the control power supply through the corresponding motor enable manual switch.

[0057] Using the above technical solution, users can directly drive and control the extension and retraction of the movable grandstand unit through the motor enable manual switch, as well as the forward and reverse manual switches, which is convenient for users' actual use. When the user operates the forward manual switch to close it, the coil of the forward relay is energized, and the reverse manual switch and the motor enable manual switch work in the same way. Specifically, the motor enable switch is a two-position rotary switch, and the forward and reverse manual switches are wired switches.

[0058] Furthermore, the drive control module includes an emergency stop relay, the control unit has an emergency stop control switch, the control power supply is connected to the coil of the emergency stop relay through the emergency stop control switch, and the normally closed switch of the emergency stop relay is connected in series in the circuit where the forward contactor coil and the reverse contactor coil are located.

[0059] Using the above technical solution, the user can issue an emergency stop command through the user terminal. After the bus host module receives the command, it sends the corresponding communication information to the corresponding drive control module. The control unit in the drive control module controls the emergency stop control switch to close. At this time, the coil of the emergency stop relay is energized, and the normally closed switch of the emergency stop relay is opened, causing the forward contactor coil and the reverse contactor coil to be de-energized, thereby causing the drive motor to stop working and the movable grandstand unit to stop moving.

[0060] Furthermore, the drive control module includes an emergency stop manual switch, and the control power supply is connected to the coil of the emergency stop relay through the emergency stop manual switch.

[0061] Using the above technical solution, users can also directly operate the emergency stop manual switch to achieve an emergency stop.

[0062] Furthermore, the bus adopts the KNX bus.

[0063] The above technical solution makes the bus more reasonable.

[0064] Furthermore, the active grandstand control system includes a power module, which is connected to the bus host module.

[0065] By adopting the above technical solution, the control system for the active grandstand becomes more reasonable, and the KNX bus not only has communication functions but also power supply functions.

[0066] Furthermore, the movable grandstand control system includes a sound-emitting unit and / or a light-emitting unit. When the sound-emitting unit is provided, the drive control module is connected to the sound-emitting unit to control the sound-emitting unit to emit sound when the drive control module drives the movable grandstand unit to move. When the light-emitting unit is provided, the drive control module is connected to the light-emitting unit to control the light-emitting unit to emit light when the drive control module drives the movable grandstand unit to move.

[0067] The above technical solution makes the movable grandstand control system more reasonable. When the movable grandstand unit is in motion, the drive control module can control the sound unit and / or the light-emitting unit to work to prompt the operators and the audience.

[0068] Specifically, the sound-generating unit and the light-emitting unit can be directly controlled by the I / O port of the control unit, or they can be controlled by connecting the normally open switches of the forward and reverse triggers in series in the circuit where the sound-generating unit and the light-emitting unit are located.

[0069] Furthermore, the drive control module includes a manual switch socket, and the forward manual switch, the reverse manual switch, and the emergency stop manual switch are connected to the manual switch socket.

[0070] Using the above technical solution, the forward manual switch, the reverse manual switch, and the emergency stop manual switch are set on the same switch and are wired switches. The wired switches are connected to the manual switch socket, which is a five-pin socket.

[0071] Furthermore, the active grandstand control system includes a main control box and sub-control boxes. The components in the bus host module are located in the main control box, and the components in the drive control module are located in the sub-control boxes.

[0072] The above technical solution makes the active grandstand control system more reasonable and aesthetically pleasing.

[0073] Furthermore, the active grandstand control system also includes a junction box and a junction box.

[0074] The above technical solution makes the control system for the movable grandstand more reasonable and facilitates on-site wiring.

[0075] Compared with the prior art, the present invention has the following beneficial effects:

[0076] (1) The movable grandstand control system of this utility model greatly simplifies the structure of the movable grandstand control system and the actual wiring through bus technology, and makes the structure of the movable grandstand control system clearer and greatly improves the scalability of the movable grandstand control system; at the same time, users can group multiple movable grandstand units and set preset scenes to achieve linkage.

[0077] (2) The movable grandstand control system of this utility model is reasonably designed and operates reliably and safely. Attached Figure Description

[0078] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0079] Figure 1 This is a plan view of the movable grandstand control system of this utility model;

[0080] Figure 2 This is a schematic diagram of the overall principle of the movable grandstand control system of this utility model;

[0081] Figure 3 This is a schematic diagram of the drive circuit of the drive motor in the movable grandstand control system of this utility model;

[0082] Figure 4 This is a schematic diagram of the motor drive auxiliary circuit structure in the movable grandstand control system of this utility model;

[0083] Figure 5 This is a schematic diagram showing the connection between the control unit and the bus in the movable grandstand control system of this utility model;

[0084] Figure 6 This is a schematic diagram of the main control box in the movable grandstand control system of this utility model;

[0085] Figure 7 This is a schematic diagram of the control box in the movable grandstand control system of this utility model;

[0086] The component names corresponding to the various reference numerals in the figure are as follows: 1. Bus host module; 101. Bus communication interface; 102. Bus host; 103. Communication structure; 1031. AC controller; 1032. Wireless AP; 2. Bus; 3. Drive control module; 301. Control unit; 3011. Forward rotation control switch; 3012. Reverse rotation control switch; 3013. Motor enable control switch; 3014. First switch module; 3015. Second switch module; 3016. Emergency stop control switch; 302. Drive unit; 3021. Drive motor; 3022. Motor drive circuit; 3022-1. Forward rotation contactor; 3022-2. Reverse rotation contactor; 3022-3. Motor drive auxiliary circuit structure; 3022-3a. Forward rotation relay; 3022-3b, Reverse Relay; 3022-3c, Motor Enable Relay; 303, Three-Phase Power Supply; 304, Control Power Supply; 305, Forward Manual Switch; 306, Reverse Manual Switch; 307, Motor Enable Manual Switch; 308, Emergency Stop Relay; 309, Emergency Stop Manual Switch; 30A, Thermal Overload Relay; 30B, Transformer; 30C, Phase Sequencer; 30D, Manual Switch Socket; 4, User Terminal; 5, Position Detection Component; 501, Fully Extended Limit Switch; 502, Fully Retracted Limit Switch; 503, Intermediate Position Limit Switch; 6, Input Module; 7, Detection Device; 8, Power Supply Module; 9, Sound Unit; 10, Lighting Unit; 11, Main Control Box; 12, Sub-Control Box; 13, Junction Box; 14, Terminal Block;

[0087] a. Activity grandstand unit. Detailed Implementation

[0088] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0089] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0090] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0091] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0092] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0093] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0094] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0095] See Figures 1 to 7 This utility model provides a control system for movable grandstands, which is used to drive and control the movement of movable grandstand unit a in a movable grandstand, including...

[0096] The bus host module 1 has a bus communication interface 101, and it lays out a bus 2 through the bus communication interface 101.

[0097] The drive control module 3 is used to drive the movement of the movable grandstand unit a, and it is mounted on the bus 2 and communicates with the bus host module 1.

[0098] And user terminal 4, which is communicatively connected to the bus host module 1 to send the user's input signal to the bus host module 1. The bus host module 1 sends the corresponding signal to the corresponding drive control module 3 through the bus 2 according to the input signal so as to drive the active grandstand unit a to move.

[0099] Using the above technical solution, the user can send control commands to the bus host module 1 by operating the user terminal 4. After receiving the control commands, the bus host module 1 sends the corresponding command signals to the corresponding drive control module 3 through the bus 2. The drive control module 3 drives the active grandstand unit a to the position required by the user according to the command signals.

[0100] The movable grandstand has multiple movable grandstand units a, and the movable grandstand control system is equipped with multiple drive control modules 3 to drive and control the multiple movable grandstand units a. Specifically, one drive control module 3 drives and controls one movable grandstand unit a, or multiple movable grandstand units a are divided into different groups, and one drive control module 3 drives and controls one group of movable grandstand units a.

[0101] The above technical solution, by setting up the bus host module 1 and the bus 2, can greatly simplify the structure of the active grandstand control system, simplify the actual wiring, make the structure of the active grandstand control system clearer, and greatly improve the scalability of the active grandstand control system. That is, if an active grandstand unit a needs to be added later, only the drive control module 3 needs to be added and connected to the bus 2.

[0102] Furthermore, by employing bus technology, users can group multiple active grandstand units a and set preset scenes to facilitate user operation and achieve the desired effect with a single click.

[0103] Furthermore, the drive control module 3 includes a control unit 301 and a drive unit 302. The control unit 301 is mounted on the bus 2 and communicates with the bus host module 1. The drive unit 302 is used to drive the active grandstand unit a to move. The control unit 301 is connected to the drive unit 302 to control the working state of the drive unit 302.

[0104] By adopting the above technical solution, the structure of the drive control module 3 is made more reasonable; the control unit 301 controls the working state of the drive unit 302 to achieve drive control of the movable grandstand unit a.

[0105] Furthermore, the drive unit 302 includes a drive motor 3021 for driving the movement of the movable grandstand unit a, and a motor drive circuit 3022 for driving and controlling the forward and reverse rotation of the drive motor 3021.

[0106] The drive motor 3021 is a three-phase AC motor. The motor drive circuit 3022 includes a forward contactor 3022-1, a reverse contactor 3022-2, and a motor drive auxiliary circuit structure 3022-3. L1, L2, and L3 in the three-phase power supply 303 are respectively connected to the U, V, and W terminals of the three-phase AC motor through the normally open switch of the forward contactor 3022-1. L1, L2, and L3 in the three-phase power supply 303 are respectively connected to the W, V, and U terminals of the three-phase AC motor through the normally open switch of the reverse contactor 3022-2. The control unit 301 controls the coil of the forward contactor 3022-1 or the coil of the reverse contactor 3022-2 to be energized through the motor drive auxiliary circuit structure 3022-3.

[0107] The above technical solution makes the structure of the drive unit 302 more reasonable. The extension and retraction of the movable grandstand unit a are controlled by controlling the forward and reverse rotation of the drive motor 3021. Specifically, when the control unit 301 energizes the coil of the forward contactor 3022-1 through the motor drive auxiliary circuit structure 3022-3, the normally open switch of the forward contactor 3022-1 closes. At this time, L1, L2, and L3 of the three-phase power supply 303 are connected to the U, V, and W terminals of the three-phase AC motor, respectively, i.e., L1 is connected to the U terminal, L2 to the V terminal, and L3 to the W terminal, and the drive motor 3021 rotates forward. When the control unit 301 energizes the coil of the reverse contactor 3022-2 through the motor drive auxiliary circuit structure 3022-3, the normally open switch of the reverse contactor 3022-2 closes. At this time, L1, L2, and L3 in the three-phase power supply 303 are connected to the W, V, and U terminals of the three-phase AC motor, respectively, i.e., L1 is connected to the W terminal, L2 is connected to the V terminal, and L3 is connected to the U terminal, and the drive motor 3021 reverses direction. In the above technical solution, the forward contactor 3022-1 and the reverse contactor 3022-2 can control the high-voltage drive circuit through a low-voltage control signal, which is reasonable and reliable.

[0108] A thermal overload relay 30A coil is connected in series between the three-phase power supply 303 and the three-phase AC motor. The normally closed switch of the thermal overload relay 30A is connected in series in the circuit where the coils of the forward contactor 3022-1 and the reverse contactor 3022-2 that control the three-phase AC motor are located.

[0109] Furthermore, the motor drive auxiliary circuit structure 3022-3 includes a forward rotation relay 3022-3a and a reverse rotation relay 3022-3b. The control power supply 304 is connected to the coil of the forward rotation contactor 3022-1 through the normally open switch of the forward rotation relay 3022-3a, the control power supply 304 is connected to the coil of the reverse rotation contactor 3022-2 through the normally open switch of the reverse rotation relay 3022-3b, the control power supply 304 is connected to the coil of the forward rotation relay 3022-3a through the forward rotation control switch 3011 of the control unit 301, and the control power supply 304 is connected to the coil of the reverse rotation relay 3022-3b through the reverse rotation control switch 3012 of the control unit 301.

[0110] By adopting the above technical solution, the motor drive auxiliary circuit structure 3022-3 becomes more reasonable. The control unit 301 controls the coil of the forward rotation relay 3022-3a or the coil of the reverse rotation relay 3022-3b to energize the coil of the forward rotation contactor 3022-1 or the coil of the reverse rotation contactor 3022-2. Specifically, when the forward rotation control switch 3011 of the control unit 301 is closed, the coil of the forward rotation relay 3022-3a is connected to the control power supply 304 and energized. The normally open switch of the forward rotation relay 3022-3a is closed, and at this time, the coil of the forward rotation contactor 3022-1... When the reverse control switch 3012 of the control unit 301 is closed, the coil of the reverse relay 3022-3b is energized by the control power supply 304, and the normally open switch of the reverse relay 3022-3b is closed. At this time, the coil of the reverse contactor 3022-2 is energized by the control power supply 304. In the above technical solution, the reverse contactor 3022-2 and the forward contactor 3022-1 are used for power isolation of the motor drive auxiliary circuit structure 3022-3, so as to avoid the complex motor drive auxiliary circuit structure 3022-3 from forming a loop and causing adverse effects between each other.

[0111] Specifically, any two phases of the three-phase power supply 303 are obtained to obtain the control power supply 304 through the transformer 30B. A phase sequencer 30C is connected to the three-phase power supply 303, and the normally closed switch of the phase sequencer 30C is connected in series between the three-phase power supply 303 and the transformer 30B.

[0112] Furthermore, one drive control module 3 can drive and control multiple active grandstand units a. The number of drive motors 3021 in the drive unit 302 matches the number of active grandstand units a that one drive control module 3 can drive and control, and they drive in a one-to-one correspondence. The number of forward contactors 3022-1 and reverse contactors 3022-2 matches the number of drive motors 3021, and they drive in a one-to-one correspondence. The control unit 301 controls the coil of the forward contactor 3022-1 or the coil of the reverse contactor 3022-2 corresponding to the drive motor 3021 that needs to work to be energized through the motor drive auxiliary circuit structure 3022-3, so as to control the drive motor 3021.

[0113] By adopting the above technical solution, one drive control module 3 can drive and control multiple active grandstand units a, which simplifies the structure. Specifically, one drive control module 3 can both synchronously drive and control the activities of multiple active grandstand units a, and can also individually control the activities of one or several active grandstand units a.

[0114] Furthermore, the motor drive auxiliary circuit structure 3022-3 includes a motor enable relay 3022-3c. The number of motor enable relays 3022-3c is matched with the number of drive motors 3021 in the drive unit 302 and corresponds one-to-one. The control unit 301 has a number of motor enable control switches 3013 that match the number of motor enable relays 3022-3c and correspond one-to-one. The coil of each motor enable relay 3022-3c is connected to the control power supply 304 through the motor enable control switch 3013 corresponding to the control unit 301. The normally open switch of the motor enable relay 3022-3c is connected in series in the circuit where the coil of the forward contactor 3022-1 and the coil of the reverse contactor 3022-2 corresponding to the drive motor 3021 are located.

[0115] Using the above technical solution, the control unit 301 controls the energization and de-energization of the relays by controlling the motor to control whether the coils of the corresponding forward contactor 3022-1 and the reverse contactor 3022-2 are allowed to be energized, so as to realize that only the drive motor 3021 that needs to work can work. Specifically, in the control circuit of a certain drive motor 3021, since the normally open switch of the forward relay 3022-3a and the normally open switch of the motor enable relay 3022-3c corresponding to the drive motor 3021 are both connected in series in the circuit where the coil of the forward contactor 3022-1 corresponding to the drive motor 3021 is located, only when the coil of the forward relay 3022-3a is energized can the coil of the drive motor 3021 be energized. When the coil of the motor enabling relay 3022-3c is energized, the coil of the forward contactor 3022-1 corresponding to the drive motor 3021 can also be energized. Since the normally open switch of the reverse relay 3022-3b and the normally open switch of the motor enabling relay 3022-3c corresponding to the drive motor 3021 are both connected in series in the circuit where the coil of the reverse contactor 3022-2 corresponding to the drive motor 3021 is located, the coil of the reverse contactor 3022-2 corresponding to the drive motor 3021 can only be energized when the coil of the reverse relay 3022-3b is energized and the coil of the motor enabling relay 3022-3c corresponding to the drive motor 3021 is energized. The above technical solution is reasonable and reliable, and has a simple structure.

[0116] Furthermore, in the forward contactor 3022-1 and the reverse contactor 3022-2 used to control the same drive motor 3021, the normally closed switch of the forward contactor 3022-1 is connected in series in the circuit where the coil of the reverse contactor 3022-2 is located, and the normally closed switch of the reverse contactor 3022-2 is connected in series in the circuit where the coil of the forward contactor 3022-1 is located.

[0117] By adopting the above technical solution, interlocking is achieved between the forward contactor 3022-1 and the reverse contactor 3022-2 used to control the same drive motor 3021. That is, when the coil of the forward contactor 3022-1 is energized, the normally closed switch of the forward contactor 3022-1 is opened to prevent the coil of the reverse contactor 3022-2 from being energized; when the coil of the reverse contactor 3022-2 is energized, the normally closed switch of the reverse contactor 3022-2 is opened to prevent the coil of the forward contactor 3022-1 from being energized. This effectively prevents the coils of the forward contactor 3022-1 and the reverse contactor 3022-2 from being energized simultaneously.

[0118] Furthermore, the active grandstand control system includes a position detection component 5 for detecting the position of the active grandstand unit a, and the number of position detection components 5 matches the number of active grandstand units a. The position detection component 5 is connected to the drive control module 3 to feed back the position information of the active grandstand unit a to the drive control module 3. The drive control module 3 determines whether the active grandstand unit a has moved into position based on the position information of the active grandstand unit a.

[0119] By adopting the above technical solution, the active grandstand control system becomes more reasonable, and the position of the active grandstand unit a becomes more controllable. Specifically, when the user issues a command through the user terminal 4, the drive control module 3 drives the active grandstand unit a to move, the position detection component 5 detects the position information of the active grandstand unit a and feeds it back to the drive control module 3, and when the active grandstand unit a moves to the user's expected position, the drive control module 3 stops driving the active grandstand unit a.

[0120] Furthermore, the position detection component 5 includes a fully extended limit switch 501 triggered when the movable grandstand unit a is fully extended, and a fully retracted limit switch 502 triggered when the movable grandstand unit a is fully retracted; the normally closed switch of the fully extended limit switch 501 is connected in series in the circuit where the coil of the forward contactor 3022-1 corresponding to the drive motor 3021 of the movable grandstand unit a is located, and the normally closed switch of the fully retracted limit switch 502 is connected in series in the circuit where the coil of the reverse contactor 3022-2 corresponding to the drive motor 3021 of the movable grandstand unit a is located.

[0121] By adopting the above technical solution, the position detection component 5 is more reasonable, and its structure is simple and reliable. Specifically, when the coil of the forward contactor 3022-1 corresponding to the drive motor 3021 of the movable grandstand unit a is energized to drive the movable grandstand unit a to extend to the fully extended state, the movable grandstand unit a will trigger the fully extended limit switch 501, causing the normally closed switch of the fully extended limit switch 501 to open. At this time, the coil of the forward contactor 3022-1 corresponding to the drive motor 3021 of the movable grandstand unit a is de-energized, that is, the drive motor 3021 of the movable grandstand unit a stops rotating forward, and the movable grandstand unit a stops moving in the fully extended state.

[0122] When the coil of the reversing contactor 3022-2 corresponding to the drive motor 3021 of the movable grandstand unit a is energized, causing the drive motor 3021 to drive the movable grandstand unit a to retract to a fully retracted state, the movable grandstand unit a will trigger the fully retracted limit switch 502, causing the normally closed switch of the fully retracted limit switch 502 to open. At this time, the coil of the reversing contactor 3022-2 corresponding to the drive motor 3021 of the movable grandstand unit a is de-energized, that is, the drive motor 3021 of the movable grandstand unit a stops reversing, and the movable grandstand unit a stops moving in the fully retracted state.

[0123] Furthermore, the position detection component 5 also includes several intermediate position limit switches 503, which are disposed between the fully extended limit switch 501 and the fully retracted limit switch 502. The control unit 301 is connected to the intermediate position limit switch 503 to obtain the position information of the movable grandstand unit a to determine whether the movable grandstand unit a has moved into position.

[0124] Using the above technical solution, during the movement of the movable grandstand unit a, the intermediate position limit switch 503 will be triggered to indicate its current position. The control unit 301 determines whether the user's expected position has been reached based on the position information of the movable grandstand unit a. If it has been reached, the drive of the movable grandstand unit a will be stopped. Specifically, this is manifested by controlling the enable relay of the corresponding drive motor 3021 to de-energize, so as to realize the partial extension or partial retraction of the movable grandstand, making the movable grandstand more practical.

[0125] Furthermore, the movable grandstand control system includes an input module 6 for converting contact signals into bus protocol signals. The fully extended limit switch 501 and / or the fully retracted limit switch 502 and / or the intermediate position limit switch 503 are connected to the input module 6, and the input module 6 is mounted on the bus 2.

[0126] By adopting the above technical solution, the control system of the movable grandstand is made more reasonable; the control unit 301 can not only obtain the status of the fully extended limit switch 501, the fully retracted limit switch 502, and the intermediate position limit switch 503 through IO connection, but also obtain the status of the fully extended limit switch 501, the fully retracted limit switch 502, and the intermediate position limit switch 503 through the cooperation of the input module 6 and the bus 2, which increases the reliability of the system;

[0127] Furthermore, the input module 6 can communicate with the bus host module 1 through the bus 2 to feed back the status of the fully extended limit switch 501, the fully retracted limit switch 502, and the intermediate position limit switch 503 to the bus host module 1, so as to facilitate the acquisition of information by the user terminal 4.

[0128] Furthermore, the control unit 301 includes a first switch module 3014 and a second switch module 3015. The first switch module 3014 has the forward rotation control switch 3011, the reverse rotation control switch 3012, and the motor enable control switch 3013. The second switch module 3015 is connected to the fully extended limit switch 501 and / or the fully retracted limit switch 502 and / or the intermediate position limit switch 503. Both the first switch module 3014 and the second switch module 3015 are connected to the bus 2 and communicate with each other through the bus 2.

[0129] By adopting the above technical solution, the control unit 301 is made more reasonable. The first switch module 3014 and the second switch module 3015 are distinguished according to their functions to facilitate later maintenance.

[0130] Furthermore, it includes a detection device 7 for detecting whether a human body or object has entered the active grandstand unit a;

[0131] The drive control module 3 is connected to the detection device 7 to obtain the detection result of the detection device 7, and / or the active grandstand control system includes an input module 6 for converting contact signals into bus protocol signals. The detection device 7 is connected to the input module 6, and the input module 6 is mounted on the bus 2. The drive control module 3 obtains the detection result of the detection device 7 through the bus 2.

[0132] The drive control module 3 controls whether the active grandstand unit a is allowed to move based on the detection result of the detection device 7.

[0133] Using the above technical solution, when the detection device 7 detects a human body or object entering the movable grandstand unit a, if the movable grandstand unit a is in motion, the drive control module 3 will stop driving the movable grandstand unit a to avoid accidents caused by collisions that could result in injury to the human body or damage to objects; making the movable grandstand control system safer; specifically, one detection device 7 can detect multiple areas of the movable grandstand unit a, or one detection device 7 can detect only one area of ​​the movable grandstand unit a, or multiple detection devices 7 can detect one area of ​​the movable grandstand unit a; the intermediate position limit switch 503, the fully extended limit switch 501, the fully retracted limit switch 502, and the detection device 7 corresponding to the movable grandstand unit a driven by the same drive control module 3 share one input module 6.

[0134] The input module 6 can communicate with the bus host module 1 through the bus 2 to feed back the detection information of the detection device 7 to the bus host module 1, so as to facilitate the acquisition of information by the user terminal 4.

[0135] Furthermore, the detection device 7 employs a diffuse reflection sensor, and the detection device 7 is installed at the front of the movable grandstand unit a.

[0136] The above technical solution makes the detection device 7 more reasonable.

[0137] Furthermore, the bus host module 1 includes a bus host 102 and a communication structure 103. The bus host 102 has the bus communication interface 101, and the user terminal 4 communicates with the bus host 102 through the communication structure 103.

[0138] The above technical solution makes the bus host module 1 more reasonable.

[0139] Furthermore, the communication structure 103 is wired to the bus host 102, and the user terminal 4 is wirelessly connected to the communication structure 103.

[0140] The above technical solution makes the bus host module 1 more reasonable; and the user terminal 4 is wirelessly connected to the communication structure 103, which allows the user terminal 4 to be moved freely, making it convenient for users to use.

[0141] Furthermore, the communication structure 103 includes an AC controller 1031 and one or more wireless APs 1032. The AC controller 1031 is wired to the bus host 102, the wireless APs 1032 are wired to the AC controller 1031, and the user terminal 4 is wirelessly connected to the wireless APs 1032.

[0142] Specifically, the AC controller 1031 is connected to the bus host 102 via TCP / IP protocol, the wireless AP 1032 is connected to the AC controller 1031 via TCP / IP protocol, and the user terminal 4 is connected to the wireless AP 1032 via WIFI.

[0143] By adopting the above technical solution, the bus host module 1 is made more reasonable, and the form of the AC controller 1031 and the wireless AP 1032 can greatly increase the communication range of the communication structure 103 and avoid the user terminal 4 from losing connection during movement.

[0144] Furthermore, the drive control module 3 includes a forward manual switch 305 and a reverse manual switch 306. The control power supply 304 is connected to the coil of the forward relay 3022-3a through the forward manual switch 305, and the control power supply 304 is connected to the coil of the reverse relay 3022-3b through the reverse manual switch 306.

[0145] The drive control module 3 further includes a motor enable manual switch 307, and the number of motor enable manual switches 307 matches the number of motor enable relays 3022-3c and corresponds one-to-one. The coil of each motor enable relay 3022-3c is connected to the control power supply 304 through the corresponding motor enable manual switch 307.

[0146] Using the above technical solution, the user can directly drive and control the extension and retraction of the movable grandstand unit a through the motor enable manual switch 307, the forward manual switch 305, and the reverse manual switch 306, which is convenient for the user's actual use. When the user operates the forward manual switch 305 to close it, the coil of the forward relay 3022-3a is energized, and the reverse manual switch 306 and the motor enable manual switch 307 work similarly. Specifically, the motor enable switch is a two-position rotary switch, and the forward manual switch 305 and the reverse manual switch 306 are wired switches.

[0147] Furthermore, the drive control module 3 includes an emergency stop relay 308, the control unit 301 has an emergency stop control switch 3016, the control power supply 304 is connected to the coil of the emergency stop relay 308 through the emergency stop control switch 3016, and the normally closed switch of the emergency stop relay 308 is connected in series in the circuit where the coils of the forward contactor 3022-1 and the reverse contactor 3022-2 are located.

[0148] Using the above technical solution, the user can issue an emergency stop command through the user terminal 4. After the bus host module 1 receives the command, it sends the corresponding communication information to the corresponding drive control module 3. The control unit 301 in the drive control module 3 controls the emergency stop control switch 3016 to close. At this time, the coil of the emergency stop relay 308 is energized, and the normally closed switch of the emergency stop relay 308 is opened, causing the coils of the forward contactor 3022-1 and the reverse contactor 3022-2 to be de-energized, thereby causing the drive motor 3021 to stop working and the movable grandstand unit a to stop moving.

[0149] Furthermore, the drive control module 3 includes an emergency stop manual switch 309, and the control power supply 304 is connected to the coil of the emergency stop relay 308 through the emergency stop manual switch 309.

[0150] Using the above technical solution, users can also directly operate the emergency stop manual switch 309 to achieve emergency stop.

[0151] Furthermore, bus 2 adopts the KNX bus.

[0152] The above technical solution makes the bus 2 more reasonable.

[0153] Furthermore, the active grandstand control system includes a power module 8, which is connected to the bus host module 1.

[0154] By adopting the above technical solution, the control system for the active grandstand becomes more reasonable, and the KNX bus not only has communication functions but also power supply functions.

[0155] Furthermore, the movable grandstand control system includes a sound-emitting unit 9 and / or a light-emitting unit 10. When the sound-emitting unit 9 is provided, the drive control module 3 is connected to the sound-emitting unit 9 to control the sound-emitting unit 9 to emit sound when the drive control module 3 drives the movable grandstand unit a to move. When the light-emitting unit 10 is provided, the drive control module 3 is connected to the light-emitting unit 10 to control the light-emitting unit 10 to emit light when the drive control module 3 drives the movable grandstand unit a to move.

[0156] The above technical solution makes the control system of the movable grandstand more reasonable. When the movable grandstand unit a is in motion, the drive control module 3 can control the sound unit 9 and / or the light-emitting unit 10 to work to prompt the operators and the audience.

[0157] Specifically, the sound-generating unit 9 and the light-emitting unit 10 can be directly controlled by the IO port of the control unit 301, or they can be controlled by connecting the normally open switches of the forward and reverse triggers in series in the circuit where the sound-generating unit 9 and the light-emitting unit 10 are located.

[0158] Furthermore, the drive control module 3 includes a manual switch socket 30D, and the forward manual switch 305, the reverse manual switch 306, and the emergency stop manual switch 309 are connected to the manual switch socket 30D.

[0159] Using the above technical solution, the forward manual switch 305, the reverse manual switch 306, and the emergency stop manual switch 309 are set on the same switch and are wired switches. The wired switches are connected to the manual switch socket 30D, which is a five-pin socket.

[0160] Furthermore, the active grandstand control system includes a main control box 11 and a sub-control box 12. Each component in the bus host module 1 is located in the main control box 11, and each component in the drive control module 3 is located in the sub-control box 12.

[0161] The above technical solution makes the active grandstand control system more reasonable and aesthetically pleasing.

[0162] Furthermore, the active grandstand control system also includes a junction box 13 and a wiring strip 14.

[0163] The above technical solution makes the control system for the movable grandstand more reasonable and facilitates on-site wiring.

[0164] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0165] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A bleacher control system for driving control of movable bleacher units (a) movement in a bleacher, characterized by: Comprising a bus host module (1) having a bus communication interface (101), and it lays out a bus (2) through the bus communication interface (101); a drive control module (3) for driving the movable stand unit (a) to move, and it is hung on the bus (2) and is in communication connection with the bus host module (1); and a user terminal (4) in communication connection with the bus host module (1) to send the user's input signal to the bus host module (1), and the bus host module (1) sends the corresponding signal to the corresponding drive control module (3) through the bus (2) according to the input signal to drive the movable stand unit (a) to move.

2. The mobile stand control system according to claim 1, characterized in that: The drive control module (3) comprises a control unit (301) and a drive unit (302), the control unit (301) is hung on the bus (2) and is in communication connection with the bus host module (1), the drive unit (302) is used for driving the movable stand unit (a) to move, and the control unit (301) is connected with the drive unit (302) to control the working state of the drive unit (302).

3. The mobile stand control system of claim 2, wherein: The drive unit (302) comprises a drive motor (3021) for driving the movable stand unit (a) to move, and a motor drive circuit (3022) for driving control of the drive motor (3021) forward and reverse rotation; The drive motor (3021) adopts a three-phase alternating current motor, the motor drive circuit (3022) comprises a forward rotation contactor (3022-1), a reverse rotation contactor (3022-2) and a motor drive auxiliary circuit structure (3022-3), L1, L2, L3 in the three-phase power supply (303) are connected with U, V, W terminals in the three-phase alternating current motor through the normally open switch of the forward rotation contactor (3022-1) respectively, L1, L2, L3 in the three-phase power supply (303) are connected with W, V, U terminals in the three-phase alternating current motor through the normally open switch of the reverse rotation contactor (3022-2) respectively, and the control unit (301) controls the coil of the forward rotation contactor (3022-1) or the coil of the reverse rotation contactor (3022-2) to be electrified through the motor drive auxiliary circuit structure (3022-3).

4. The mobile stand control system of claim 3, wherein: The motor driving auxiliary circuit structure (3022-3) includes a forward rotation relay (3022-3a) and a reverse rotation relay (3022-3b), the control power supply (304) is connected with the coil of the forward rotation contactor (3022-1) through the normally open switch of the forward rotation relay (3022-3a), the control power supply (304) is connected with the coil of the reverse rotation contactor (3022-2) through the normally open switch of the reverse rotation relay (3022-3b), the control power supply (304) is connected with the coil of the forward rotation relay (3022-3a) through the forward rotation control switch (3011) of the control unit (301), and the control power supply (304) is connected with the coil of the reverse rotation relay (3022-3b) through the reverse rotation control switch (3012) of the control unit (301).

5. The mobile stand control system of claim 4, wherein: One drive control module (3) can drive and control a plurality of movable stand units (a), the number of the drive motors (3021) in the drive unit (302) matches the number of the movable stand units (a) that can be driven and controlled by one drive control module (3) and is one-to-one driving cooperation; the number of the forward rotation contactor (3022-1) and the reverse rotation contactor (3022-2) matches the number of the drive motor (3021) and is one-to-one matching; the control unit (301) controls the coil of the forward rotation contactor (3022-1) or the coil of the reverse rotation contactor (3022-2) of the drive motor (3021) that needs to work through the motor driving auxiliary circuit structure (3022-3) to control the drive motor (3021); The motor driving auxiliary circuit structure (3022-3) includes a motor enable relay (3022-3c), the number of the motor enable relay (3022-3c) matches the number of the drive motor (3021) in the drive unit (302) and is one-to-one, the control unit (301) has a number of motor enable control switches (3013) that matches the number of the motor enable relay (3022-3c) and is one-to-one, the coil of each motor enable relay (3022-3c) is connected with the control power supply (304) through the corresponding motor enable control switch (3013) of the control unit (301), and the normally open switch of the motor enable relay (3022-3c) is connected in series in the circuit in which the coil of the forward rotation contactor (3022-1) corresponding to the drive motor (3021) and the coil of the reverse rotation contactor (3022-2) are connected. The normally closed switch of the forward rotation contactor (3022-1) is connected in series in the line in which the coil of the reverse rotation contactor (3022-2) is located, and the normally closed switch of the reverse rotation contactor (3022-2) is connected in series in the line in which the coil of the forward rotation contactor (3022-1) is located.

6. The mobile stand control system of claim 5, wherein: The position detection assembly (5) is used to detect the position of the movable stand unit (a), and the number of the position detection assembly (5) matches the number of the movable stand unit (a). The position detection assembly (5) is connected with the drive control module (3) to feed back the position information of the movable stand unit (a) to the drive control module (3), and the drive control module (3) judges whether the movable stand unit (a) is in place according to the position information of the movable stand unit (a); The position detection assembly (5) includes a fully extended limit switch (501) triggered when the movable stand unit (a) is fully extended, and a fully retracted limit switch (502) triggered when the movable stand unit (a) is fully retracted. The normally closed switch of the fully extended limit switch (501) is connected in series in the line in which the coil of the forward rotation contactor (3022-1) corresponding to the drive motor (3021) of the corresponding movable stand unit (a) is located, and the normally closed switch of the fully retracted limit switch (502) is connected in series in the line in which the coil of the reverse rotation contactor (3022-2) corresponding to the drive motor (3021) of the corresponding movable stand unit (a) is located. The position detection assembly (5) further includes a plurality of intermediate position limit switches (503) arranged between the fully extended limit switch (501) and the fully retracted limit switch (502). The control unit (301) is connected with the intermediate position limit switch (503) to obtain the position information of the movable stand unit (a) to judge whether the movable stand unit (a) is in place. The movable stand control system includes an input module (6) for converting contact signals into bus protocol signals. The fully extended limit switch (501), the fully retracted limit switch (502), and / or the intermediate position limit switch (503) are connected with the input module (6), and the input module (6) is mounted on the bus (2). The control unit (301) comprises a first switch module (3014) and a second switch module (3015), the first switch module (3014) has the forward rotation control switch (3011), the reverse rotation control switch (3012) and the motor enable control switch (3013), the second switch module (3015) is connected with the fully stretched limit switch (501) and / or the fully retracted limit switch (502) and / or the intermediate position limit switch (503), the first switch module (3014) and the second switch module (3015) are hung on the bus (2) and realize communication through the bus (2).

7. The mobile bleachers control system of claim 1, wherein: The detection device (7) is used to detect whether a human body or an object enters the movable stand unit (a); The drive control module (3) is connected with the detection device (7) to obtain the detection result of the detection device (7), and / or the movable stand control system comprises an input module (6) used to convert a touch signal into a bus protocol signal, the detection device (7) is connected with the input module (6), the input module (6) is hung on the bus (2), and the drive control module (3) obtains the detection result of the detection device (7) through the bus (2); The drive control module (3) controls whether the movable stand unit (a) is allowed to move according to the detection result of the detection device (7); The detection device (7) adopts a diffuse reflection sensor, and the detection device (7) is installed at the front of the movable stand unit (a).

8. The mobile bleachers control system of claim 1, wherein: The bus host module (1) comprises a bus host (102) and a communication structure (103), the bus host (102) has the bus communication interface (101), and the user terminal (4) communicates with the bus host (102) through the communication structure (103); The communication structure (103) and the bus host (102) are connected by wires, and the user terminal (4) and the communication structure (103) are connected wirelessly; The communication structure (103) comprises an AC controller (1031) and one or more wireless APs (1032), the AC controller (1031) is connected with the bus host (102) by wires, the wireless AP (1032) is connected with the AC controller (1031) by wires, and the user terminal (4) is connected with the wireless AP (1032) wirelessly; The AC controller (1031) and the bus host (102) are connected through a TCP / IP protocol, the wireless AP (1032) and the AC controller (1031) are connected through a TCP / IP protocol, and the user terminal (4) and the wireless AP (1032) are connected through WIFI.

9. The mobile stand control system of claim 5, wherein: The drive control module (3) comprises a forward rotation manual switch (305) and a reverse rotation manual switch (306), the control power supply (304) is connected with the coil of the forward rotation relay (3022-3a) through the forward rotation manual switch (305), and the control power supply (304) is connected with the coil of the reverse rotation relay (3022-3b) through the reverse rotation manual switch (306); The drive control module (3) further comprises motor enable manual switches (307), the number of the motor enable manual switches (307) matches the number of the motor enable relays (3022-3c) and corresponds to the motor enable relays (3022-3c) one by one, and the coil of each motor enable relay (3022-3c) is connected with the control power supply (304) through the corresponding motor enable manual switch (307); The drive control module (3) comprises an emergency stop relay (308), the control unit (301) is provided with an emergency stop control switch (3016), the control power supply (304) is connected with the coil of the emergency stop relay (308) through the emergency stop control switch (3016), and the normally closed switch of the emergency stop relay (308) is connected in series in the circuit in which the coil of the forward rotation contactor (3022-1) and the coil of the reverse rotation contactor (3022-2) are located; The drive control module (3) comprises an emergency stop manual switch (309), and the control power supply (304) is connected with the coil of the emergency stop relay (308) through the emergency stop manual switch (309).

10. The mobile stand control system of claim 1, wherein: The bus (2) adopts a KNX bus; The movable stand control system comprises a power supply module (8), and the power supply module (8) is connected with the bus host module (1); The movable stand control system comprises a sound emitting unit (9) and / or a light emitting unit (10), when the sound emitting unit (9) is arranged, the drive control module (3) is connected with the sound emitting unit (9) to control the sound emitting unit (9) to emit sound when the drive control module (3) drives the movable stand unit (a) to move, and when the light emitting unit (10) is arranged, the drive control module (3) is connected with the light emitting unit (10) to control the light emitting unit (10) to emit light when the drive control module (3) drives the movable stand unit (a) to move.

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