A kind of control method of lifting cross-sliding type mechanical parking equipmentTechnical field
The present invention relates to a kind of control method of lifting cross-sliding type mechanical parking equipment.
Background technology
Day by day serious along with city parking problem, mechanical parking equipment because its unit occupied area is little, the advantage such as safe and reliable of stopping, welcomed by the people, enter fast city parking market.And lifting cross sliding type parking equipment is wherein due to the advantage such as simple in structure, easy to operate, the occupation rate on parking apparatus market is the highest at home.
At present, mainly to adopt PLC be master controller to lifting cross sliding type parking equipment.Traditional control method is the real time detection signal that master controller gathers each parking stall, then judges by logic, carries out corresponding lift-sliding action.The position signalling of each parking stall (upper, the next, left position and right position) and anti-fall hook are opened and are waited signaling point all to access PLC input module, and each parking stall motor and catching device driving all access PLC output module.The weak point of existing control method is: for the larger lifting cross sliding type parking equipment of the capacity of depositing, PLC input and output are counted many, can cause device control module large, and connection cable is many, and control structure is complicated, Construction and Maintenance inconvenience, and total cost is high.
Summary of the invention
The technical problem solving
The object of the invention is the weak point for current lifting cross-sliding type mechanical parking equipment, a kind of new control method is provided.
Technical scheme
In reality, the action feature of lifting cross-sliding type mechanical parking equipment is: when a certain, be carved with and can only have a parking stall to carry out lifting action, but can have the while to carry out traversing action in a plurality of parking stalls again; While only having a certain parking stall to carry out lifting action, the anti-fall hook of this parking stall is just opened.According to this feature, on known each parking stall, put in place, under put in place and these three signals of anti-fall hook opening signal and other parking stalls can't trigger simultaneously, therefore only detection when it carries out lifting action; In like manner, the catching device of each parking stall drives also can drive action simultaneously with its motor, needn't directly be controlled by PLC output point.When PLC has selected a certain parking stall to carry out lifting action, can power supply be provided only to upper bit switch, the next and anti-fall hook of this parking stall by lifting motor contactor.Now, put in place on during lifting action, under put in place and anti-fall hook opening signal must be come parking stall since then, also only have the catching device of this parking stall just can be driven.
The present invention adopts following technical scheme:
The control method of described a kind of lifting cross-sliding type mechanical parking equipment, it is characterized in that: the power supply of the upper location switch of each lifting parking stall, lower location switch and catching device all accesses the lifting motor contactor constant open contact of this parking stall, after the upper location switch signal end parallel connection of each lifting parking stall, access PLC input, after the lower location switch signal end parallel connection of each lifting parking stall, access PLC input, after the anti-fall hook opening signal end parallel connection of each lifting parking stall, access PLC input; PLC adopts the following step of controlling:
Step 1:PLC powers on and storage area, parking space elevating position is set, to the storage area zero clearing of parking space elevating position; Disconnect main circuit, successively each lifting parking stall control loop is switched on, and according to when energising upper location switch of each lifting parking stall and the signal value of lower location switch, in PLC lifting position storage area, deposit corresponding lift truck bit position information in: upper, the next, centre position;
Step 2: wait for user instruction, behind user's intended target parking stall, according to the traversing position of each parking stall, vertical motion is carried out in the parking stall of successively needs being risen; According to the positional information of storage area, parking space elevating position, if this parking stall upper, this parking stall is without upper bit motion; While rising on parking stall, according to the signal value of location switch on it and lower location switch, in PLC lifting position storage area real-time update positional information;
Step 3: after step 2 completes, carry out the traversing action in parking stall; After decline condition in target parking stall meets, carry out the down maneuver of this car; When parking stall declines, according to the signal value of location switch on parking stall and lower location switch, in PLC lifting position storage area real-time update positional information, the parking stall former business of falling to putting in place completes;
Step 4: return to step 2, wait for the new instruction of user.
Beneficial effect
The following beneficial effect that compared with prior art this invention has:
1, PLC input and output point reduces, and control module is less, PLC cost.
2, cable consumption and field wiring workload reduce, and total cost reduces.
Accompanying drawing explanation
Fig. 1 elevating control schematic diagram;
Fig. 2 lifting main program flow chart
Wherein:
M1-lifting braking motor KM1 – lifting motor contactor
Location switch under location switch B2 – on F – catching device B1 –
The specific embodiment
The present embodiment is the example of applying on two-layer lift-sliding formula parking apparatus.
Two-layer lift-sliding formula parking equipment control system adopts modular construction, and PLC is placed in switch board, and every row lifting parking stall is a control module.There is a control box every row lifting parking stall, and control box comprises two layers of lifting contactor, the traversing contactor of one deck and wiring terminal.Power supply and the signal of each row lifting parking stall are connected to PLC by control box.The critical element of each control module comprises two layers of lifting motor and the traversing motor of one deck, two layers of catching device, upper location switch and lower location switch etc.Fig. 1 is elevating control schematic diagram.The power supply of two layers of sense switch that puts in place (upper location switch, lower location switch) and catching device is all subject to the control of lifting motor contactor.
According to above-mentioned control method, access PLC input after respectively listing the travel switch signal end parallel connection that puts in place, under put in place after the parallel connection of travel switch signal end and access PLC input, after the parallel connection of anti-fall hook opening signal end, access PLC input.These three signals are one group, can between each row control box, be connected in series, then by a certain control box access PLC.
After device power, main contactor discharges, and main circuit disconnects, and adhesive lifting motor contactor successively then puts in place on detecting now and the signal of lower location switch, and position, parking stall is saved in to PLC lifting position storage area.Behind user's select target parking stall, system is carried out corresponding lifting and traversing action according to the lifting position of PLC storage.In lifting process, PLC is to each real-time update lifting position storage area, two layers of parking stall.After equipment is out of service, the position, parking stall that system is installed lifting position storage area makes and putting in place, under the state that puts in place or do not put in place show.