CN201729611U

CN201729611U - Embedded safety monitoring device of tower crane

Info

Publication number: CN201729611U
Application number: CN201020246044XU
Authority: CN
Inventors: 张洪涛; 胥芳; 占红武
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-02-02
Anticipated expiration: 2020-07-06

Abstract

An embedded safety monitoring device of a tower crane comprises an embedded controller, a wind speed sensor, an encoder, a height sensor, an amplitude sensor and a weight sensor. The encoder is used for acquiring rotation angle of a spindle motor of the tower crane, the embedded controller is connected with a liquid crystal display, a keyboard, a storage and a control output module, a signal output end of the encoder and the wind speed sensor are connected with a CPLD logic device, the CPLD logic device is in serial connection with the embedded controller, the CPLD logic device is used for operating rotation angle, wind speed and direction of a spindle of the tower crane, the height, amplitude and weight sensors are connected to the embedded controller via analog channels, parameters acquired by the embedded controller are stored in the storage while results are displayed on the liquid crystal display and are compared to the preset value, and when the acquired information value is higher than the preset value, a signal for closing the tower crane is output by the control output module.

Description

Embedded tower crane safety monitoring device

Technical field

The utility model relates to a kind of embedded-type security control monitor unit that is used for, particularly a kind of tower crane safety monitoring device.

Background technology

The monitoring instrument that more present tower machines mainly adopt is a monitoring instrument of realizing simple function, as load moment limiter, load lifting limiter, multi-parameter monitoring instrument based on PLC has also appearred recently, but PLC is the cost height not only, and the response time of PLC is slower, so some emergency situations for the treatment of column machine in real time.The safety misadventure that tool statistics tower machine occurs, major part all is because operating personal can't accurately obtain the parameter of tower machine work at present state, makes tower machine overload operation.

Summary of the invention

In order to solve the problem that safety problem that existing tower machine exists and tower machine operation personnel can not understand tower machine work at present state parameter at any time, the utility model provides a kind of embedded tower crane safety monitoring device, this device can not only show the working parameter that the tower machine is all in real time, so that tower machine operation personnel understand tower machine current state, and has data " black box " function, the historical operating state data that is about to the tower machine stores in the memory device, so that carry out data analysis.

The technical solution of the utility model:

Embedded tower crane safety monitoring device, it is characterized in that: comprise coder, height sensor, amplitude sensor, the weight sensor of embedded controller, air velocity transducer, collection tower machine spindle motor rotational angle, be connected with Liquid Crystal Display (LCD), keyboard, memory device, control output module on the described embedded controller;

Described coder is connected with tower machine spindle motor, the signal output part of described coder is connected with the CPLD logical device, described air velocity transducer is connected with the CPLD logical device, described CPLD logical device and embedded controller are connected in series, described CPLD logical device is used to calculate the anglec of rotation, wind speed and the wind direction of tower machine main shaft, and sends the data to embedded controller;

Described height sensor is installed on the tower machine suspension hook motor, described amplitude sensor is installed on the vehicle motor, described weight sensor is installed in the proving ring place of tower machine, described height, amplitude, weight sensor are connected on the embedded controller by analog channel, and described analog channel sends to embedded controller after the parameter information numeral that collects is transformed;

Each parameter value that described embedded controller will collect stores in the memory device, object information is shown on the Liquid Crystal Display (LCD), and compare with the value that pre-sets, when Information Monitoring value during, close the signal of tower machine by the output of control output module greater than the value that pre-sets.

Further, described height, amplitude sensor all are linearity potentiometers, and described coder is absolute type encoder or incremental encoder, and described air velocity transducer adopts electro-optical pickoff.

Described embedded controller calculates cooresponding Maximum Loading Capacity according to the amplitude information that collects, if the weight of current reality greater than Maximum Loading Capacity, is closed the signal of tower machine by the output of control output module; Described embedded controller compares weight information that collects and the weight information that sets in advance, if the gravimetric value of gathering is greater than the gravimetric value that pre-sets, then the status information of tower machine stores in the memory device at this moment, the end of mark tower machine working cycle, when the weight information of gathering during less than the gravimetric value that pre-sets, store in the memory device tower machine status information of this moment the beginning of mark tower machine working cycle into.

The beneficial effects of the utility model are: realized that 1, tower machine population parameter real-time monitoring and control also can compare with the range value that pre-sets, height value, gravimetric value, air speed value, when Information Monitoring value during greater than the value that pre-sets, monitor state cuts off the power supply to the dynamo-electric source of tower, to avoid the generation of safety misadventure; 2, control terminal that can be by having human-computer interaction interface to amplitude, highly, the parameter of weight, wind speed sets; 3, control monitor unit adopts embedded controller, makes that this type product structure is simple, cost is low, is suitable for the tower machine of various models, is beneficial to popularization.

Description of drawings

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the utility model application implementation constructional drawing.

The specific embodiment

With reference to Fig. 1, Fig. 2, embedded tower crane safety monitoring device, comprise coder 2, height sensor 3, amplitude sensor 4, the weight sensor 5 of embedded controller 7, air velocity transducer 1, collection tower machine spindle motor rotational angle, be connected with Liquid Crystal Display (LCD) 10, keyboard 9, memory device 11, control output module 8 on the described embedded controller 7;

Described coder 2 is connected with tower machine spindle motor, the signal output part of described coder 2 is connected with CPLD logical device 6, described air velocity transducer 1 is connected with CPLD logical device 6, described CPLD logical device 6 is connected in series with embedded controller 7, described CPLD logical device 6 is used to calculate the anglec of rotation, wind speed and the wind direction of tower machine main shaft, and sends the data to embedded controller 7;

Described height sensor 3 is installed on the tower machine suspension hook motor, described amplitude sensor 4 is installed on the vehicle motor, described weight sensor 5 is installed in the proving ring place of tower machine, described height, amplitude, weight sensor are connected on the embedded controller 7 by analog channel 12, and described analog channel 12 sends to embedded controller 7 after the parameter information numeral that collects is transformed;

Each parameter value that described embedded controller 7 will collect stores in the memory device 11, object information is shown on the Liquid Crystal Display (LCD) 10, and compare with the value that pre-sets, when Information Monitoring value during, close the signal of tower machine by 8 outputs of control output module greater than the value that pre-sets.

Described height sensor 3, amplitude sensor 4 all are linearity potentiometers, and described coder 2 is absolute type encoder or incremental encoder, and described air velocity transducer 1 adopts electro-optical pickoff.

Described embedded controller 7 calculates cooresponding Maximum Loading Capacity according to the amplitude information that collects, if the weight of current reality greater than Maximum Loading Capacity, is closed the signal of tower machine by 8 outputs of control output module; Described embedded controller 7 compares weight information that collects and the weight information that sets in advance, if the gravimetric value of gathering is greater than the gravimetric value that pre-sets, then the status information of tower machine stores in the memory device 11 at this moment, the end of mark tower machine working cycle, when the weight information of gathering during less than the gravimetric value that pre-sets, store in the memory device 11 the tower machine status information of this moment the beginning of mark tower machine working cycle into.

Analog channel 12 in the present embodiment by follow filtering, AD converter CS5511 forms, CS5511 is 16 bit A/D converter spares, can provide ten thousand/ precision, CS5511 chip and embedded controller 7 are connected in series, embedded controller 7 adopts the ATMega64 family chip, also can be replaced by the ATMega128 family chip; Follow filtering and finish the picking up of analog signal, filtering, buffer action, mainly form by OP07 series op amp; Keyboard 9 is made up of 4X4 keyboard array and CH451 chip, and wherein the CH451 chip can be replaced by the ZLG7289 family chip; Liquid Crystal Display (LCD) 10 is made up of the 320X240 liquid crystal module, adopts parallel connection mode with embedded controller 7, and Liquid Crystal Display (LCD) is supported literal, graphic display mode; Control output module 8 is made up of optocoupler array and 16 relays, optocoupler array and 7 parallel connections of embedded controller, and the optocoupler array adopts TLP521 series optocoupler, and wherein optocoupler can be replaced by the P521 family chip; Memory device 11 adopts the SD card, and SD card and master controller are connected in series; CPLD logical device 6 adopts the MAX7000 serial model No. of altera corp, and 6 realizations of CPLD logical device are connected with angle, air velocity transducer.

The described content of this specification sheets embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.

Claims

1. embedded tower crane safety monitoring device, it is characterized in that: comprise coder, height sensor, amplitude sensor, the weight sensor of embedded controller, air velocity transducer, collection tower machine spindle motor rotational angle, be connected with Liquid Crystal Display (LCD), keyboard, memory device, control output module on the described embedded controller;

2. embedded tower crane safety monitoring device according to claim 1, it is characterized in that: described height, amplitude sensor all are linearity potentiometers, described coder is absolute type encoder or incremental encoder, and described air velocity transducer adopts electro-optical pickoff.