CN205973513U - Dangerous condition monitoring equipment of hoist - Google Patents

Abstract

The utility model provides a dangerous condition monitoring equipment of hoist, includes that master controller module, a n long -range IO module, sensor, scram switch, door -trip, weight are spacing, overspeed switch, output relay pilot lamp etc. Master controller module and a long -range IO module are passed through the RS485 bus and are linked to each other, other long -range IO modules are cascaded through the RS485 bus, output relay pilot lamp links to each other with master controller module, sensor, scram switch, door -trip link to each other with long -range IO module, the weight is spacing, the overspeed switch links to each other with long -range IO module, more weights are spacing, the overspeed switch then connects gradually on the long -range IO module n. This patent has realized dangerous condition monitoring equipment of hoist, and the security performance of messenger's hoist has had to be provided by a wide margin, has solved the loaded down with trivial details safety monitoring problem of hoist that hoist body PLC can't compromise.

Description

A kind of crane precarious position monitoring device

Technical field

This patent belongs to technical field of automatic control, is related to a kind of crane precarious position monitoring device.

Background technology

It is also sternly to grab to manage in iron and steel enterprise's safety problem all the time again, but safety problem or again and again appearance.In steel Ferrum enterprise, crane applications extensively, are the capital equipments producing, and are also the equipment that safety problem projects simultaneously.Although reinforcement department Machine safety training, strengthen working specification, strengthen norms of mainteaance, but safety problem is appointed and so cannot be solved, mainly crane belongs to In big jumbo, operator does not have comprehensive visual angle it is impossible to observe the safe condition in each orientation of crane, crane simultaneously In-house facility numerous it is impossible to find in time the hidden danger of each equipment, this also leads to the safety problem of crane cannot solve at all.

Content of the invention

In order to solve the above problems, this patent provides one kind to efficiently solve scheme, realizes a kind of crane precarious position Monitoring device, for the precarious position monitor and detection of crane, precarious position is reported to the police in advance, and interlocking signal is provided it is ensured that Under precarious position, crane stops in time, thus avoiding the Fang Sheng of security incident.

This patent solves its technical problem and be employed technical scheme comprise that：

This crane precarious position monitoring device, opens including main controller module, n remote I/O module, sensor, jerk Pass, door trip, weight are spacing, overspeed switch, output relay display lamp；Main controller module is passed through with a remote I/O module RS485 bus is connected；Other remote I/O module are cascaded by RS485 bus；Output relay display lamp and master controller Module is connected；Sensor, emergency stop switch, door trip are connected with remote I/O module 1；Weight is spacing, overspeed switch and remote I/O mould Block 2 is connected；More weights are spacing, overspeed switch is then consecutively connected on remote I/O module n.

Main controller module includes CPU, I/O module, smoke detection module, SD card module, RS-232 interface module, RS- 485 interface modules, PT100 interface module, EEPROM module, RTC block, high-frequency clock module, low-speed clock module；IO mould Block is all connected with the I/O interface of CPU with smoke detection module；SD card module is connected with the SDIO interface of CPU；RS-232 interface mould Block is connected with the UART1 interface of CPU；RS-485 interface module is connected with the UART2 interface of CPU；PT100 interface module and CPU ADC interface be connected；EEPROM module is connected with the IIC interface of CPU；High-frequency clock module is connected with cpu clock interface；Low speed Clock module is connected with the RTC block of CPU.

Remote I/O module include CPU, I/O module, smoke detection module, RS-485 interface module, high-frequency clock module, PT100 interface module；I/O module is all connected with the I/O interface of CPU with smoke detection module；RS-485 interface module is with CPU's UART1 interface is connected；PT100 interface module is connected with the ADC interface of CPU；High-frequency clock module is connected with cpu clock interface.

In current crane facility security system mainly or based on security monitoring, with gantry body PLC it is Primary control, the information of the collection various equipment of crane, it is aggregated into the work(that monitoring device realizes fault alarm, integrated management Energy.This system security management is to postmortem analysiies more effectively, but to accident prevention effect and inconspicuous.It is primarily due to lifting The PLC of machine will complete the coordination between the various equipment of crane, will complete the technological requirement of crane operation, and task is various, If being further added by the work such as numerous and diverse security control, accident early warning, by leading to crane PLC, over-burden, and due to PLC The equipment belonging to order execution is it is impossible to also carry out security control, if security control while walking crane normal work to do Task amount is too big, then can affect the execution of crane normal work to do.So still will in current crane PLC control system The process operation of crane itself, as emphasis, is then thought after completing the detection of the safe condition of capital equipment of crane During crane current state, safety, that is, start the conventional flowsheet of walking crane, especially in automatization's crane more It is such.The safe condition of the various equipment of crane only just can be checked again for when next cycle period executes.This The real-time of the security control to crane for the operating mode is relatively low.And because being only one of which main control PLC, task by The CPU of this PLC completes, and does not have redundancy detection, then may result in some key signals when this PLC breaks down and collection Mistake, the safety that can think invalid unsafe signal, thus lead to detection careless omission.Further, since the emphasis of work Difference, the PLC system of crane will not do complicated chain inspection, mainly for each mechanism by various safety equipment to crane The chain condition running meets requirement and can execute operational order.

This patent realizes crane precarious position monitoring device using embedded type CPU, this patent equipment have main control module and Remote I/O module forms.Main control module is responsible for collecting part I/O device information, temperature information, is exported interlocking signal and carry out state The information of collection is analyzed arrangement simultaneously and is stored in SD card by instruction.It is some other with that main control module passes through RS485 bus Remote I/O module connects, the data message on collection remote I/O module.The topmost function of main control module is by each remote I/O The information that module and main control module itself collect carries out collecting, analyzes, counts the characteristic run according to crane, makes All input equipments are carried out overall conditions analysis by maintenance plan form simultaneously, draw unsafe factor, dangerous letter Breath and the non-safety information that will appear from carry out output display and with relay chain to crane main control loop, stand if necessary Stop the operation of crane all devices, carry out security alarm.Main control module does not do communication with gantry body PLC and is connected, Only interacted by relay interlocking signal, run parallel with main frame PLC, in addition to necessary interlocking signal, non-interference.Originally simultaneously Patent equipment is directly chain with crane main control loop, does not pass through main frame PLC transfer, has tight security, will not be because of Main frame PLC affects the safe effect of this equipment.Therefore this patent equipment has the advantages that high reliability, high stability, thus protecting Demonstrate,prove crane overall security, so that the danger coefficient that the whole machine of crane runs is greatly lowered.

Each remote I/O module of this patent and central controller all configure PT100 detection interface, can connect PT100 temperature sensing Device, can stablizing with each position of real-time detection, high temperature alarm, fire alarm can be made.In summer crane operating temperature Can steeply rise, in order to ensure the operation of crane temperature, the electric panel room of every crane all configures air conditioning system, but air-conditioning system System cannot participate in the monitoring of crane mainframe PLC substantially, so in some cases, but cannot examine when air-conditioning breaks down Measure, also lead to crane faults frequent, or even device damage, and this patent equipment can be fully solved this problem.In addition rise Some equipment of heavy-duty machine may result in fire if there is damage, but fire except outside using fire alarm testing equipment, Also cannot effective detection, and except large-scale port machine and shipbuilding door machine outside, other cranes substantially will not configure fire alarm and set Standby.This patent is integrated with PT100 module and smoke detection module can coordinate detection fire condition, if detecting fire feelings Condition, can stop the control loop of crane and the power supply of power loop immediately, and alert, so that operator Understand fire condition in time, it is to avoid loss expands.

This patent achieves crane precarious position monitoring device, and so that the security performance of crane is had significantly provides, Solve the problems, such as the loaded down with trivial details safety monitoring of crane that gantry body PLC cannot take into account, to the safety factorss of crane, safety Hidden danger, fire alarm, high temperature alarm have good detection and safeguard procedures, thus the safe operation of effective guarantee crane.

Brief description

Fig. 1 is this patent electrical systematic drawing.

Fig. 2 is the structure chart of this patent main control device.

Fig. 3 is the structure chart of the long-range I/O device of this patent.

Specific embodiment

Describe specific implementation of the patent example below in conjunction with technical scheme and accompanying drawing in detail.

Embodiment：

Fig. 1 is the electrical systematic drawing of this patent, and this patent is using Italian STMicw Electronics technical grade embedded type CPU, type Number it is STM32F407, this CPU has 168MHz dominant frequency, the program storage of built-in 1MB and the RAM of 192kB, have highest The arithmetic speed of 210MIPS, that is, per second can execute 210,000,000 instructions, have that stability is high, high excellent of operating temperature range Point.Master controller carries out data exchange with this CPU for core and remote I/O module, makes data analysiss simultaneously, counts, collects Work, these data comprehensive and current real-time input information make danger judgement in time, and when causing danger situation, logic is led to Cross relay and export chain crane control loop and power loop, make crane out of service immediately, simultaneously output signal light, Make corresponding dangerous information to show.

Remote I/O module in Fig. 1 needs to carry out, near the signal source of signals collecting, then passing through by being installed on crane RS485 bus is connected to master controller, by the data is activation of collection in master controller.Because the signal of collection is more, if All by cable connection to master controller, number of cables certainly will be caused to greatly increase, simultaneously the increasing number of cable, be also whole The stability of system declines, and capacity of resisting disturbance can reduce, and the reliability of system just cannot ensure.So being adopted using remote I/O module Collection field data, arranges remote I/O module near signal source, gathers signal nearby, above-mentioned problem can be avoided completely to send out Raw.And RS485 communication modes are also capacity of resisting disturbance bus the strongest, only communicated for medium with two twisted-pair feeders, adopted Differential voltage carries out data communication, can effectively suppression common mode interference.

This patent can arrange multiple remote I/O module, and the crane for different situations can be with flexible arrangement.Remote I/O Module mainly gathers the facility informations such as sensor, emergency stop switch, door trip, the spacing, overspeed switch of weight, and sensor, jerk are left Close, door trip focuses primarily upon on gantry body standing part it is possible to by these signals collecting to same remote I/O mould In block, this patent is by these signals collecting in remote I/O -1 module.The equipment such as weight is spacing, overspeed switch are mainly in crane Lifting mechanism, move with dolly, and some cranes have multiple lifting mechanisms and multiple trolley body, so according to crane Difference, each dolly arranges a remote I/O module, thus may have multiple remote I/O being arranged on dolly, be used for adopting The information of the equipment such as the spacing, overspeed switch of weight at collection scene.

As the structure chart of Fig. 2 this patent main control module, this patent has extended out I/O module, RS232 interface, RS-485 to CPU Interface, SD card module, EEPROM module, PT100 temperature detecting module, smoke detection module.RS232 interface is as exterior arrangement Interface uses, and connects PC and can carry out parameter configuration to this equipment by hyper terminal.It is long-range that RS-485 interface connects other I/O module carries out data exchange using RS-485 mode.SD card module preserves data message, and the main CPU that includes is to the letter collecting Breath carries out collecting, analyzes, counts, and the characteristic run according to crane, and the maintenance plan form made, to all input equipments Carry out overall conditions analysis, draw unsafe factor, be likely to occur form of the data summarization such as dangerous information etc..EEPROM Module is used for preserving parameter setting information.PT100 temperature detecting module and smoke detection module can be made with detection zone temperature High temperature alarm, cooperation smoke detection module can also make fire alarm.I/O module is responsible for controlling output relay action, simultaneously The display of alarm lamp can also be controlled, in addition can also gather locally neighbouring input signal.

Fig. 3 is the structure chart of the long-range I/O device of this patent.Including extension CPU, I/O module, RS-485 interface, PT100 temperature Detection module, smoke detection module.Remote I/O module equally has CPU, and CPU is logical with master controller not only for realizing News, also have simultaneously and for local data to carry out the function that converts, convert, can reduce the workload of master controller CPU, simultaneously Some warning messages can also be localized, can participate in without master controller, some signals of local collection are collected Analysis, directly makes final result, collects to master controller.Effectively reduce the operand of master controller.I/O module can connect The input equipments such as limit switch, sensor.RS-485 interface connects master controller, realizes the data exchange and between master controller. PT100 temperature detecting module and smoke detection module can make high temperature alarm with detection zone temperature, coordinate smoke detection module Fire alarm can also be made.

Claims (3)

1. a kind of crane precarious position monitoring device it is characterised in that：This crane precarious position monitoring device includes master control Device module processed, n remote I/O module, sensor, emergency stop switch, door trip, weight are spacing, overspeed switch, output relay refer to Show lamp；Main controller module is connected by RS485 bus with a remote I/O module；It is total that other remote I/O module pass through RS485 Line is cascaded；Output relay display lamp is connected with main controller module；Sensor, emergency stop switch, door trip and remote I/O Module 1 is connected；Weight is spacing, overspeed switch is connected with remote I/O module 2；More weights are spacing, overspeed switch then connects successively It is connected on remote I/O module n.

2. a kind of crane precarious position monitoring device according to claim 1 is it is characterised in that described master controller Module includes CPU, I/O module, smoke detection module, SD card module, RS-232 interface module, RS-485 interface module, PT100 Interface module, EEPROM module, RTC block, high-frequency clock module, low-speed clock module；I/O module and smoke detection module are equal It is connected with the I/O interface of CPU；SD card module is connected with the SDIO interface of CPU；RS-232 interface module and the UART1 interface of CPU It is connected；RS-485 interface module is connected with the UART2 interface of CPU；PT100 interface module is connected with the ADC interface of CPU； EEPROM module is connected with the IIC interface of CPU；High-frequency clock module is connected with cpu clock interface；Low-speed clock module and CPU RTC block be connected.

3. a kind of crane precarious position monitoring device according to claim 1 and 2 is it is characterised in that described is long-range I/O module includes CPU, I/O module, smoke detection module, RS-485 interface module, high-frequency clock module, PT100 interface module； I/O module is all connected with the I/O interface of CPU with smoke detection module；RS-485 interface module is connected with the UART1 interface of CPU； PT100 interface module is connected with the ADC interface of CPU；High-frequency clock module is connected with cpu clock interface.