CN103543687A - Lifting stage control device and control method thereof - Google Patents
Lifting stage control device and control method thereof Download PDFInfo
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- CN103543687A CN103543687A CN201310488271.1A CN201310488271A CN103543687A CN 103543687 A CN103543687 A CN 103543687A CN 201310488271 A CN201310488271 A CN 201310488271A CN 103543687 A CN103543687 A CN 103543687A
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Abstract
The invention discloses a lifting stage control device and a control method thereof. The lifting stage control device comprises a master controller, a PLC (programmable logic controller), a plurality of servo motors, lifting platforms, pressure sensors, position sensors and rotating-speed sensors. The number of the lifting platforms is as same as that of the servo motors. The pressure sensors are arranged on the lifting platforms. At least one position sensor is arranged on each lifting platform. The rotating-speed sensors are arranged on the servo motors. The PLC is electrically connected with the servo motors. The servo motors are electrically connected with corresponding lifting platforms. The rotating-speed sensors, the pressure sensors and the position sensors are electrically connected with the master controller respectively. A display screen is arranged on the master controller. The lifting stage control device and the control method thereof have the advantages that lifting conversion efficiency of a stage and safety needs of performers during performance can be guaranteed, modification cost is low, and multiple operating modes of the stage in an unloaded or loaded state can be realized.
Description
Technical field
The present invention relates to Stage Equipment Control technical field, especially relate to a kind of security is good, lifting efficiency is high elevator stage control device and control method.
Background technology
Existing elevator stage adopts PLC+ servocontrol motor to realize stage operation conventionally, on artistic expression, adopt and set PC program or perform back court workman and manually control realization, operation by rule of thumb in implementation method, relatively original, the performance back court workman's who causes labour intensity is large, and the poor accuracy of control cannot be realized the stage action that some difficulty are higher; On performance safety, tradition lifting table control device only be take personal safety as the first consideration, has sacrificed some action requests of lifting table, no matter such as whether performer is on platform, can only realize rising or the decline of lifting table, cause like this efficiency of whole stage motion greatly to reduce.On stage sports safety, traditional lifting table only considers that performer is whether on platform, and does not consider the actual conditions of performer on platform, and artistic expression declines greatly.
Chinese patent mandate publication number: CN103197632A, authorize open day on July 10th, 2013, disclose a kind of intelligent stage, light, the comprehensive performing art system of dance & art, comprised Intelligent Light-control System, intelligent Stage Equipment Control system, intelligent dance & art control system and central control system; Described central control system comprises industrial control host, storage device, communication interface, input equipment and display screen; Described central control system connects respectively described Intelligent Light-control System, intelligent Stage Equipment Control system and intelligent dance & art control system by communication interface; In described Intelligent Light-control System, intelligent Stage Equipment Control system, intelligent dance & art control system, designed respectively, stored some sub-scene module separately of the different story of a play or opera periods, described sub-scene module is called for each self-corresponding Intelligent Light-control System, intelligent Stage Equipment Control system, intelligent dance & art control system respectively, carries out respectively light modulation, stage and dance & art action.There is the deficiency that can not lifting table be carried out safety, be controlled fast in this invention.
Summary of the invention
Goal of the invention of the present invention is that the security of elevator stage in prior art is good, the inefficient deficiency of lifting in order to overcome, and a kind of security is good, lifting efficiency is high elevator stage control device and control method are provided.
To achieve these goals, the present invention is by the following technical solutions:
A kind of elevator stage control device, comprise master controller, PLC controller, several servomotors, the lifting table identical with servomotor quantity, be located at the pressure transducer on each lifting table, be located at least 1 position transducer on each lifting table, and be located at the speed probe on each servomotor; PLC controller is electrically connected to each servomotor, and each servomotor is electrically connected to corresponding lifting table; Speed probe, pressure transducer and position transducer are electrically connected to master controller respectively; Master controller is provided with display screen.
The setting of speed probe of the present invention, pressure transducer and position transducer can detect the pressure condition on travelling speed, height and the lifting table of elevator stage, thus effective guarantee performer personal safety; Can on the basis of existing elevator stage, transform, without increasing too much extra cost; Can realize stage in no-load and have the multiple method of operation under the state of carrying, not only having guaranteed the efficiency of stage lifting conversion but also can guarantee the demand for security of performer in performance process.
Master controller is electrically connected to PLC controller by connecting wire, and described connection wire is provided with current sensor; Current sensor is electrically connected to master controller by signal amplifier.
The normal pressure scope of set pressure sensor in master controller, the standard range of lifting table, the rated rotational frequency scope of servomotor; Pressure transducer, position transducer and speed probe detect respectively pressure, the height of lifting table and the rotating speed of servomotor being applied on lifting table;
Within the scope of normal pressure scope, standard range and rated rotational frequency, master controller is controlled lifting of lifting table by PLC controller and servomotor;
When the electric current detecting when current sensor is above standard the higher limit of range of current, master controller sends the instruction of the lifting that stops all lifting tables, and all lifting tables are out of service; In display, show overload-alarm information.The data message that master controller detects according to each sensor is analyzed, computing make corresponding elevator stage operation and control.
Therefore, the present invention has and can on the basis of existing elevator stage, transform, without increasing too much extra cost; Can realize stage in no-load and have the multiple method of operation under the state that carries, not only guarantee the efficiency of stage lifting conversion but also can guarantee the feature of the demand for security of performer in performance process.
As preferably, described master controller is ARM control chip, and speed probe is electrically connected to master controller by signal amplifier, and pressure transducer is electrically connected to master controller by differential amplifier, position transducer is electrically connected to instrument amplifier, and instrument amplifier is electrically connected to master controller.
ARM control chip has that volume is little, low-power consumption, low cost, high-performance; Support the two instruction set of Thumb (16)/ARM (32), well 8/16 devices of compatibility; A large amount of registers that use, instruction execution speed is faster; Most of data manipulations all complete in register; Addressing mode is simple flexibly, and execution efficiency is high; The feature that instruction length is fixing.
As preferably, described lifting table is 2 to 32.
As preferably, also comprise remote signal receiver and telepilot, remote signal receiver is electrically connected to master controller.
As preferably, the top of lifting table is provided with flat board, and pressure transducer is positioned at flat board.
A control method for elevator stage control device, comprises the steps:
(6-1) in master controller, be provided with the normal pressure scope of pressure transducer, the standard range of lifting table, the rated rotational frequency scope of servomotor and the maximum height difference H of adjacent lifting table; Pressure transducer, position transducer and speed probe detect respectively pressure, the height of lifting table and the rotating speed of servomotor being applied on lifting table;
Within the scope of normal pressure scope, standard range and rated rotational frequency, master controller is controlled lifting of lifting table by PLC controller and servomotor;
(6-2) establishing A is any lifting table in all lifting tables, and when the pressure transducer on lifting table A detects the pressure being applied on lifting table A and is above standard the higher limit of pressure limit, master controller is controlled lifting table A stop motion by servomotor;
(6-3) when the height of lifting table A higher than the higher limit of standard range or the height of lifting table the lower limit lower than standard range, master controller is controlled lifting table A stop motion by servomotor;
(6-4), when the rotating speed that the speed probe on being located at lifting table A detects is above standard the higher limit of the range of speeds, the rotating speed of the servomotor on main controller controls lifting table A is reduced to 1/3 to 2/3 speed operation of the higher limit in rated rotational frequency scope;
(6-5), when pressure transducer detects the pressure being applied on lifting table A and is less than the lower limit of normal pressure scope, the servomotor on main controller controls lifting table A rotates according to the higher limit of rated rotational frequency scope;
(6-6) servomotor on lifting table A is according in the higher limit rotation process of rated rotational frequency scope, pressure transducer on lifting table A detects on lifting table object or performer, and the servomotor on main controller controls lifting table A rotates according to 1/2 to 2/3 speed of the higher limit of rated rotational frequency scope; And each lifting table B that main controller controls is adjacent with lifting table A and the difference in height between lifting table A are all less than H rice.
In order to increase before the lights the performer's of performance safety guarantee, prevent performer when performance because of excessive the falling of adjacent lifting table drop.Therefore, must limit the difference in height between adjacent lifting table, forbid adjacent lifting table to occur one and be positioned at high position state, a phenomenon that is positioned at lower position state, existing elevator stage adopts manual program set positions, when performer stand on lifting table, forbid lifting table repeatedly to move.In the present invention, the setting of lifting table position transducer is exactly to control the real-time adjustable height of lifting table, for coordinating a plurality of lifting tables in the poor interior operation of safe altitude.
As preferably, described standard range is 0 to 1.6 meter.
As preferably, described normal pressure scope is 10 to 200 kilograms.
As preferably, rated rotational frequency scope is 0 to 2000r/min.
As preferably, H is 0.3 meter to 0.5 meter.
Therefore, the present invention has following beneficial effect: (1) has not only guaranteed the efficiency of stage lifting conversion but also can guarantee the demand for security of performer in performance process; (2) improvement cost is low; (3) can realize stage in no-load and have the multiple method of operation under the state of carrying.
Accompanying drawing explanation
Fig. 1 is a kind of theory diagram of the present invention;
Fig. 2 is a kind of process flow diagram of embodiments of the invention.
In figure: master controller 1, PLC controller 2, servomotor 3, lifting table 4, pressure transducer 5, position transducer 6, speed probe 7, display screen 8, signal amplifier 9, differential amplifier 10, instrument amplifier 11, remote signal receiver 12, telepilot 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment is as shown in Figure 1 a kind of elevator stage control device, comprise master controller 1, PLC controller 2,2 servomotors 3,2 lifting tables 4, be located at the pressure transducer 5 on each lifting table and be located at the position transducer 6 on each lifting table, and being located at the speed probe 7 on each servomotor; PLC controller is electrically connected to 2 servomotors, and each servomotor is electrically connected to corresponding lifting table; Speed probe, pressure transducer and position transducer are electrically connected to master controller respectively; Master controller is provided with display screen 8.
Master controller is ARM control chip, speed probe is electrically connected to master controller by signal amplifier 9, pressure transducer is electrically connected to master controller by differential amplifier 10, and the position transducer on lifting table is electrically connected to instrument amplifier 11, and instrument amplifier is electrically connected to master controller.ARM control chip can pass through expansion I/O module, realizes at most the motion control to 32 lifting tables.
Also comprise remote signal receiver 12 and telepilot 13, remote signal receiver is electrically connected to master controller.The top of lifting table is provided with flat board, and pressure transducer is positioned at flat board.Flat board is rectangle, is of a size of 800 * 800 square millimeters.
In the present embodiment, lifting table in standard range, set altogether " on ", " on ", " in ", " under " five location statuss of D score, while having performer to stand, can only there is " upper, on " or " in upper, in " or " in, under " or " under, under " location status operation in adjacent lifting table, the output voltage difference that master controller receives the instrument amplifier being connected with position transducer on adjacent lifting table can not surpass 0.8V.
The control method of a kind of elevator stage control device as shown in Figure 2, comprises the steps:
The output voltage range of instrument amplifier is 0-5.0V, 0 value in the standard range of 0.5V and lifting table is corresponding, in the standard range of 4.5V and lifting table 1.6 meters are corresponding, five positions according to lifting table in standard range, the instrument amplifier output voltage being connected with position transducer is divided into the setting values such as 0.5V, 1.3V, 2.1V, 2.9V, 3.7V, 4.5V from low to high.
The output voltage range of the differential amplifier being connected with speed probe is 0-5.0V, according to the rotating speed of servomotor from slowly to being divided into soon 0,0.5V, 1.5V, the setting value such as 3.5V, 4.5V.When the output voltage of differential amplifier is 0.5V to 3.5V, lifting table is for there being the state that carries, and when the output voltage of differential amplifier, being greater than 4.5V is the overweight state of lifting table, and when the output voltage of differential amplifier, being less than 0.5V is idling.ARM Master control chip is expansion I/O module according to demand, can control at most and realize 32 groups of lifting table motions.
Within the scope of normal pressure scope, standard range and rated rotational frequency, master controller is controlled lifting of lifting table by PLC controller and servomotor;
When the pressure transducer on lifting table A detects the pressure that is applied on lifting table A and surpasses 200 kilograms, the output voltage that master controller detects the output terminal of the differential amplifier being connected with pressure transducer is greater than 4.5V, showing has overweight object or performer, operation will cause certain performer's body injury or damage stage on lifting table.
When the height of lifting table A is during higher than 1.6 meters of standard range, master controller detects with the voltage of being located at the instrument amplifier output that lifting table A upper position sensor is connected and is greater than 4.5V;
When the height of lifting table is lower than 0 meter, master controller detects with the voltage of being located at the instrument amplifier output that lifting table A upper position sensor is connected and is less than 0.5V, standby and the stage security of operation in order to ensure stage dress, it is out of service that master controller is controlled lifting table A by servomotor;
When pressure transducer detects the pressure being applied on lifting table A and is less than 10 kilograms, the output voltage that master controller detects the output terminal of the differential amplifier being connected with pressure transducer is less than 0.5V, show that without performer or object the servomotor on main controller controls lifting table A rotates according to 2000r/min on platform; To reduce the lifting of lifting table time, improve stage conversion efficiency;
When the pressure transducer on lifting table A detects and has object or performer on lifting table, the output voltage that master controller detects the output terminal of differential amplifier is 0.5V to 3.5V.
Master controller can control adjacent operating elevating platform to " on ", " on ", " in ", " under " five location statuss of D score, also can be according to stage operation demand, desired location value, is less than 0.4 meter as long as meet adjacent lifting table difference in height voluntarily.
Should be understood that the present embodiment is only not used in and limits the scope of the invention for the present invention is described.In addition should be understood that art technology engineering staff can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. an elevator stage control device, it is characterized in that, comprise master controller (1), PLC controller (2), several servomotors (3), the lifting table (4) identical with servomotor quantity, is located at the pressure transducer (5) on each lifting table, be located at least 1 position transducer (6) on each lifting table, and be located at the speed probe (7) on each servomotor; PLC controller is electrically connected to each servomotor, and each servomotor is electrically connected to corresponding lifting table; Speed probe, pressure transducer and position transducer are electrically connected to master controller respectively; Master controller is provided with display screen (8).
2. elevator stage control device according to claim 1, it is characterized in that, described master controller is ARM control chip, speed probe is electrically connected to master controller by signal amplifier (9), pressure transducer is electrically connected to master controller by differential amplifier (10), position transducer is electrically connected to instrument amplifier (11), and instrument amplifier is electrically connected to master controller.
3. elevator stage control device according to claim 1, is characterized in that, described lifting table is 2 to 32.
4. elevator stage control device according to claim 1, is characterized in that, also comprises remote signal receiver (12) and telepilot (13), and remote signal receiver is electrically connected to master controller.
5. according to the elevator stage control device described in claim 1 or 2 or 3 or 4, it is characterized in that, the top of lifting table is provided with flat board, and pressure transducer is positioned at flat board.
6. a control method for elevator stage control device according to claim 1, is characterized in that, comprises the steps:
(6-1) in master controller, be provided with the normal pressure scope of pressure transducer, the standard range of lifting table, the rated rotational frequency scope of servomotor and the maximum height difference H of adjacent lifting table; Pressure transducer, position transducer and speed probe detect respectively pressure, the height of lifting table and the rotating speed of servomotor being applied on lifting table;
Within the scope of normal pressure scope, standard range and rated rotational frequency, master controller is controlled lifting of lifting table by PLC controller and servomotor;
(6-2) establishing A is any lifting table in all lifting tables, and when the pressure transducer on lifting table A detects the pressure being applied on lifting table A and is above standard the higher limit of pressure limit, master controller is controlled lifting table A stop motion by servomotor;
(6-3) when the height of lifting table A higher than the higher limit of standard range or the height of lifting table the lower limit lower than standard range, master controller is controlled lifting table A stop motion by servomotor;
(6-4), when the rotating speed that the speed probe on being located at lifting table A detects is above standard the higher limit of the range of speeds, the rotating speed of the servomotor on main controller controls lifting table A is reduced to 1/3 to 2/3 speed operation of the higher limit in rated rotational frequency scope;
(6-5), when pressure transducer detects the pressure being applied on lifting table A and is less than the lower limit of normal pressure scope, the servomotor on main controller controls lifting table A rotates according to the higher limit of rated rotational frequency scope;
(6-6) servomotor on lifting table A is according in the higher limit rotation process of rated rotational frequency scope, pressure transducer on lifting table A detects on lifting table object or performer, and the servomotor on main controller controls lifting table A rotates according to 1/2 to 2/3 speed of the higher limit of rated rotational frequency scope; And each lifting table B that main controller controls is adjacent with lifting table A and the difference in height between lifting table A are all less than H rice.
7. the control method of elevator stage control device according to claim 6, is characterized in that, described standard range is 0 to 1.6 meter.
8. the control method of elevator stage control device according to claim 6, is characterized in that, described normal pressure scope is 10 to 200 kilograms.
9. according to the control method of the elevator stage control device described in claim 6 or 7 or 8, it is characterized in that, rated rotational frequency scope is 0 to 2000r/min.
10. according to the control method of the elevator stage control device described in claim 6 or 7 or 8, it is characterized in that, H is 0.3 meter to 0.5 meter.
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| CN201310488271.1A CN103543687B (en) | 2013-10-17 | 2013-10-17 | Elevator stage control device and control method |
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| CN201310488271.1A CN103543687B (en) | 2013-10-17 | 2013-10-17 | Elevator stage control device and control method |
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Cited By (6)
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| CN107564240A (en) * | 2016-06-30 | 2018-01-09 | 浙江大丰实业股份有限公司 | Arenas fall arrest alarm platform |
| CN107564239A (en) * | 2016-06-30 | 2018-01-09 | 浙江大丰实业股份有限公司 | Arenas fall arrest alarm method |
| CN109305520A (en) * | 2017-07-28 | 2019-02-05 | 上海倍獭工业机器人有限公司 | A kind of Intelligent carrier system and its control method |
| CN111119529A (en) * | 2019-12-17 | 2020-05-08 | 太仓秦风广告传媒有限公司 | Intelligent anti-falling stage system based on personnel movement dynamic state and working method |
| CN115196353A (en) * | 2022-07-14 | 2022-10-18 | 昆山市曙光照明器材有限公司 | Lifting device and system for stacking candle cups |
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| CN111119529B (en) * | 2019-12-17 | 2021-10-19 | 三亚苑鼎演艺有限公司 | Intelligent anti-falling stage system based on personnel movement dynamic state and working method |
| CN115196353A (en) * | 2022-07-14 | 2022-10-18 | 昆山市曙光照明器材有限公司 | Lifting device and system for stacking candle cups |
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| CN103543687B (en) | 2015-10-28 |
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Application publication date: 20140129 Assignee: FOSHAN YIQING TECHNOLOGY Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2024980000086 Denomination of invention: Control device and method for lifting stage Granted publication date: 20151028 License type: Common License Record date: 20240104 |
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