CN201165437Y

CN201165437Y - Sundries elevator controller

Info

Publication number: CN201165437Y
Application number: CNU2008200736763U
Authority: CN
Inventors: 翁松怡
Original assignee: TIANJIN BOKONG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Current assignee: TIANJIN BOKONG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority date: 2008-01-18
Filing date: 2008-01-18
Publication date: 2008-12-17
Anticipated expiration: 2018-01-18

Abstract

The utility model discloses a sundries elevator controller which comprises a processor (CPU), photoelectric insulation units, an input signal detection unit, a parameter output unit, a drive amplification unit and a power supply unit; wherein the processor (CPU) is respectively connected with the two photoelectric insulation units and the parameter output unit through a bus structure method; the input signal detection unit inputs the detected input signal into the processor (CPU) through the photoelectric insulation units; the processor (CPU) outputs the signal to the parameter output unit according to the status of the input signal, outputs the control signal to the drive amplification unit through the photoelectric insulation units, and drives the load through the drive amplification unit, and the power supply unit provides power for the controller. The controller has the advantages that the sundries elevator controller adopts full digital control, realizes rapid real-time response and high reliability, and has perfect self-diagnostic function, standardized hardware structure and strong universality; meanwhile, the price of the controller is low, the performance is steady, and the operation is reliable.

Description

The dumb waiter controller

Technical field

The utility model relates to a kind of electric life controller device, particularly a kind of dumb waiter controller.

Background technology

Dumb waiter generally adopts the small-sized ladder of push button control mode outdoors, is particularly useful for transporting light goods, food and article such as foreign material, books in hotel, restaurant, library, warehouse, the wheel cabin, has the vertical transport instrument of light loading characteristics.The Room door of dumb waiter adopts straight fraction, and it is manual that the mode of opening the door mostly is.Room door has the branch of single open-door and double door, can adopt rear opening according to customer requirement.The automatically controlled part of dumb waiter mainly adopts simple and easy travel switch and relay control, and guide rail adopts T type guide rail, and the door slideway etc., the integral frame-type structure is installed simply, need not machine room.

Existing dumb waiter is owing to adopt simple and easy travel switch and relay control, and in use mechanical door lock and electric switch separation type are installed the nonsynchronous situation of mechanical electric that is prone to.And do not have stop motion mechanism, cause elevator to be in operation easily, use extremely inconvenience, have certain potential safety hazard simultaneously owing to the Room, gate unnormal unlocking cause elevator improper out of service.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of low cost, strong interference immunity, stable performance, reliable dumb waiter controller are provided.

The technical scheme that the utility model adopted is: a kind of dumb waiter controller comprises: CPU treater, photoelectricity isolated location, input signal detection unit, parameter output unit, driving amplifying unit, power subsystem unit; Described CPU treater interconnects with two photoelectricity isolated locations and parameter output unit respectively in the bus architecture mode, described input signal detection unit is input to described CPU treater to the incoming signal that detects by described photoelectricity isolated location, described CPU treater is exported to described parameter output unit according to the state of described incoming signal, and control signal outputed to described driving amplifying unit by described photoelectricity isolated location, drive load by described driving amplifying unit, described power subsystem unit provides electric power for this controller, the chip of described CPU processor adopting is 87LPC764, and described power subsystem unit adopts Switching Power Supply.

Described Switching Power Supply adopts LM2575 series switch integrated regulator.

The beneficial effects of the utility model are: because the dumb waiter controller adopts digital control, quick real-time response and high reliability have been realized, possesses perfect self-diagnostic function, the hardware configuration normalisation, highly versatile, on unified basic hardware architecture basics, the user need only change the part setting of system, just can realize different floors, the different control that requires; Adopt photoelectric isolating device, improved the obstacle overcome ability of system, non-maintaining, exempt from debugging, easy for installation, realize that easily old ladder transforms, adopt Switching Power Supply, it is little influenced by power network fluctuation, and this controller is cheap, and stable performance is reliable.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model dumb waiter controller is described in further detail.

Fig. 1 is the utility model dumb waiter controller block diagram;

Fig. 2 is the inner block diagram of the utility model CPU treater;

Fig. 3 is the utility model switching power circuit principle schematic;

Fig. 4 is the utility model dumb waiter controller embodiment principle schematic.

The specific embodiment

As shown in figures 1 and 3, the dumb waiter controller comprises: CPU treater, photoelectricity isolated location, input signal detection unit, parameter output unit, driving amplifying unit, power subsystem unit; It is a in the 87LPC76X of the PHILIPS company family chip that described CPU treater is selected 87LPC764 for use, also is the single chip microcontroller of one 20 pin encapsulation, the central process unit that intercoms mutually and control as data information acquisition, logic control, man machine interface.Advantages such as this treater possesses that processing speed height, memory capacity are big, dependable performance, antijamming capability are strong are the core parts of dumb waiter controller control part.Realize quick real-time response, had high reliability; The hardware configuration standard configurations, highly versatile meets the newest standards of country about the automatically controlled standard of foreign material ladder.The CPU treater interconnects with two photoelectricity isolated locations and parameter output unit respectively in the bus architecture mode, described input signal detection unit is input to described CPU treater to the incoming signal that detects by described photoelectricity isolated location, described CPU treater is exported to described parameter output unit according to the state of described incoming signal, and control signal outputed to described driving amplifying unit by described photoelectricity isolated location, drive load by described driving amplifying unit, described power subsystem unit provides electric power for this controller, the chip of described CPU processor adopting is 87LPC764, described power subsystem unit adopts Switching Power Supply, and described Switching Power Supply adopts LM2575 series switch integrated regulator.The 1A integrated stable voltage circuit that LM2575 series switch integrated regulator selects for use National Semiconductor to produce; its inner integrated circuit such as oscillator, reference circuit, amplifier, comparator and inner voltage stabilizing that 52kHz is fixing; has perfect defencive function; in establish protective circuit electric current restriction and hot breaking circuit etc. arranged; seldom peripheral components just can constitute a kind of mu balanced circuit efficiently; can reduce the volume of radiating gill greatly, and in most of the cases not need radiating gill.When utilizing the LM2575 design circuit, with LM2575T-5.0 is example, according to different output voltages, and maximum input voltage Vin (MAX), maximum load current Iload parameters such as (MAX), match different inductance value, during with interior input voltage, the recommendation use value is 150uH～220uH for 15V; Input capacitance C1 should be greater than 47 μ F, and require as far as possible near circuit, and the capacitance that output capacitance C2 recommends to use is 100 μ F～470 μ F, and its withstand voltage should for the output of 5V voltage, recommend to use the electric capacity of withstand voltage as 16V greater than 1.5～2 times of specified output; The load current value of diode should be greater than 1.2 times of maximum load current, but consider the situation of load short circuits, and the load current value of diode should be greater than the maximum current limit of LM2575; The reverse voltage of diode should be greater than 1.25 times of maximum input voltage in addition.

As shown in Figure 2, the control chip of the utility model dumb waiter controller has following characteristics: the 80C51 with acceleration is a kernel, clock frequency can reach 20MHz, the digital circuit operating voltage range is 2.7～6.0V, include 4k byte OPT program code memory, user RAM memory device with 128 bytes, the personal code work memory device that has 32 bytes, can be used for storing to parameter is set, include two 16 counting/timers, and can when timer overflows, include two analog comparators so that its voltage overturns by direct control T0/T1 pin, have the UART of full duplex, have I ²C bus communication mouth, 8 keyboard interrupt inputs and two external interrupt inputs are arranged, 4 interrupt priority levels are arranged, can drive its inner WatchDog Timer by the independent oscillation source in inside, its time of overflowing has 8 grades of time selection, has reset function in the sheet, can carry out the crystal oscillator failure of oscillation automatically detects, mode of oscillation can be configured to height, in, low frequency and outside, inner two kinds of RC oscillation forms, the I/O programmable is as the criterion two-way, the open circuit door, recommend output and input form, input port is made as Shi Mite (Schmitt) and triggers input form, all I/O mouths all have LED power-handling capability (20mA), the rising of interface line level conversion, fall time, each about 10ns thereby can lower EMI, had minimum 15 available I/O mouths, in selecting sheet internal oscillator and sheet for use during reset circuit, 18 available I/O mouths are arranged, and two positions of maintaining secrecy can make user's program code thoroughly not readable, have free time or power down energy-saving mode; And can carry out external interrupt wakeup; Exemplary operation electric current under the power-down mode is 1 μ A.

The principle of work of the utility model dumb waiter controller: as shown in Figure 4, the utility model dumb waiter controller embodiment principle schematic, described CPU treater, photoelectricity isolated location, input signal detection unit, parameter output unit, driving amplifying unit can normally move respectively with after the corresponding circuit of dumb waiter is connected, at this moment, can deliver to car the stop of appointment by each floor call button, in a single day elevator has accepted the operating order of a certain floor, does not accept the operating order of other floors before finishing.Car is in this floor operational process, and this floor display lamp can flash, up to stop.If in this process, the calling signal of other floors is arranged, its floor indicator lamp is once glittering, and system does not respond yet not to be remembered.After car arrives and specifies stop to stop, buzzer call 3 seconds, the lamp that opens the door flashes, and the prompting attendant opens Room door, takes out article; When Room door is opened, exhale the indicator lamp that opens the door of terraced display panel bright.Cab is at certain floor flat bed, and when Room door puts in place by reaching to close and close really, the lamp that opens the door extinguishes, and buzzer call prompting in 1 second door shuts, and car can respond the calling signal of other floors.

Rest in a certain stop when cab and forget and close the door or Men Wei when shutting that other floor calls are the floor buzzer call then, closes the door to remind this floor attendant.As long as Room door is opened, the lamp Chang Liang that opens the door, system does not respond the calling signal of other floors, but to other floor call signal memories 3 seconds, corresponding floor indicator lamp can flash.For preventing the door lock adhesion, the lamp that opens the door during car arrival flat bed flashes, and requires door to open once, and elevator can respond calling signal (press anxious stopping, can cancel this once requirement of opening the door).

The uplink and downlink indicator lamp is only lighted when the elevator uplink and downlink.And in a single day scram button is pressed, and car is out of service immediately, does not respond any calling signal, and at this moment, it is bright to exhale the urgency of terraced display panel to stop indicator lamp.Cancel the anxious stopping time, the calling signal of each floor of elevator normal response.

When elevator need overhaul or desire when machine room operate an elevator, button can be switched to inspecting state, elevator promptly is in the service work state, presses the up button of maintenance, descending button, realizes elevator crawl uplink and downlink.Under inspecting state, sedan-chair outgoing call ladder push-botton operation lost efficacy.

The utility model dumb waiter controller adopts digital control, quick real-time response and high reliability have been realized, possesses perfect self-diagnostic function, the hardware configuration normalisation, highly versatile, on unified basic hardware architecture basics, the user need only change the components of system as directed setting, as the importation of input signal detection unit, can realize different floors, the different controls that require, adopt photoelectric isolating device, improved the obstacle overcome ability of system, non-maintaining, exempt from debugging, easy for installation, easily realize old ladder transformation, adopt Switching Power Supply, it is little influenced by power network fluctuation, scope range of the fluctuation of voltage :-20%～+ 10%, and this controller is cheap, stable performance, reliable.

Claims

1. a dumb waiter controller comprises: CPU treater, photoelectricity isolated location, input signal detection unit, parameter output unit, driving amplifying unit, power subsystem unit; Described CPU treater interconnects with two photoelectricity isolated locations and parameter output unit respectively in the bus architecture mode, described input signal detection unit is input to described CPU treater to the incoming signal that detects by described photoelectricity isolated location, described CPU treater is exported to described parameter output unit according to the state of described incoming signal, and control signal outputed to described driving amplifying unit by described photoelectricity isolated location, drive load by described driving amplifying unit, described power subsystem unit provides electric power for this controller, it is characterized in that: the chip of described CPU processor adopting is 87LPC764, and described power subsystem unit adopts Switching Power Supply.

2. a kind of dumb waiter controller according to claim 1 is characterized in that: described Switching Power Supply adopts LM2575 series switch integrated regulator.