CN201287997Y

CN201287997Y - Elevator control system with gate interlock automatic detection

Info

Publication number: CN201287997Y
Application number: CNU2008201027444U
Authority: CN
Inventors: 李明辉; 戚永奇; 陈海波; 张许泽; 岳文凯; 任盈科
Original assignee: XJ Elevator Co Ltd
Current assignee: XJ Elevator Co Ltd
Priority date: 2008-06-18
Filing date: 2008-06-18
Publication date: 2009-08-12
Anticipated expiration: 2018-06-18

Abstract

The utility model relates to an automatic checking elevator control system with gate interlocks, wherein a gate interlock checking unit is connected between the gate interlocks of each floor and an external calling unit, the gate interlock checking unit outputs checking signals for the gate interlock make-break states, the checking signals are sent to the external calling unit, the external calling unit sends the signals to an elevator main control board through a CAN-BUS bus, position information of gate interlock failure floors can be displayed through an elevator control system, an LC resonance circuit is connected between a voltage changer and a gate interlock contact coil, the gate interlock checking unit adopts a high frequency impulse generating device, the high frequency impulse generating device is connected with a photoelectric isolator and an isolating voltage changer, failure information can be clearly displayed on the external calling unit of each floor or can be displayed on positions demanded by the elevator control system through adopting the gate interlock with the structure, which is very clear and realizes visualization. Maintenance staff can conveniently and accurately judge the floor with gate interlock failures.

Description

The apparatus for controlling elevator that the band gate interlock detects automatically

Technical field

The utility model relates to a kind of apparatus for controlling elevator, particularly the automatic apparatus for controlling elevator that detects of band gate interlock.

Background technology

In recent years, along with the fast development of Chinese national economy, the popularity rate of elevator in social production, life is also more and more higher.Elevator is in the long-time running process, because the X factors such as tenure of use of various parts, and different faults appears, make troubles for people's production, life.For example, during elevator door interlocking fault, as shown in Figure 1 according to existing maintenance program, can only whether all lead to by all door lock S1～Sn of gate interlock contactless switch state-detection (wherein n is a floor), if obstructed, can't judge which or several obstructed, and must by manually successively the investigation.This mode not only takes time and effort, and contains human element in the investigation.Can not be fit to the development of society now far away.

The utility model content

The purpose of this utility model is: design a kind of elevator door accurate automatic detection system of improper disconnection of interlocking, position of fault is accurately located, need not manually successively to check, and then improve the efficient of elevator maintenance, save human cost.

The utility model adopts following structure to realize, between the gate interlock of each floor and outgoing call unit, be connected with the gate interlock detecting unit, the gate interlock detecting unit is to gate interlock on off mode output detection signal, detection signal is given the outgoing call unit, the elevator master control board is given by the CAN-BUS bus in the outgoing call unit, through the location information of apparatus for controlling elevator show gate interlocking fault floor; Contact with gate interlock at voltage transformer and to be connected with the LC resonance circuit between the coil; The gate interlock detecting unit adopts the high-frequency impulse generating means; Be connected with photoisolator and isolating transformer in the high-frequency impulse generating means, wherein: photoisolator is connected between commutating circuit and the state output pin, and isolating transformer is connected high-frequency impulse generation circuit and commutating circuit, electric capacity two ends.

Utilize the existing capability of elevator outgoing call, gather the status information of gate interlock break-make, and information is sent to the elevator master control board, information is carried out judgment processing by the elevator master control board by its communication unit.If be defined as improper disconnection, then in apparatus for controlling elevator, show the location information of fault floor.

Owing to be added with on the gate interlock contact～110V or～the 220V high potential, can't directly detect with micro controller system, the ingenious utilization rf carrier of the utility model detection technique had both realized that the gate interlock break-make detects, and did not influence the normal operation of primary circuit again.For ease of being the collection of 50Hz 120V gate interlock status information to terminal voltage, native system has used a kind of high-frequency impulse generating means, produces the impulse singla that is used for detecting gate interlocking on off mode.Its mouth and gate interlock link, and the on off mode of gate interlock just can be controlled the output of high-frequency impulse information fgn.The impulse singla of output produces and the corresponding gate interlock make-and-break status information of gate interlock on off mode, finishes last information acquisition, communication by external calling device.The Room of each floor every interlocking all implant this novel after, both can realize location to fault gate interlock position, promptly can accurately know which layer gate interlock fault.

After adopting native system, the failure message of gate interlock just can clearly be presented in the outgoing call of each floor, or is presented on the needed position of apparatus for controlling elevator, comes into plain view, and has realized visual.For the repair and maintenance personnel, the decision gate open circuited floor of interlocking easily and accurately just.

Description of drawings

The block diagram of Fig. 1 prior art;

Fig. 2 block diagram of the present utility model;

Fig. 3 high-frequency impulse generating means specific embodiment figure.

The specific embodiment

Shown in Fig. 2,3, gate interlock detecting unit Un is connected between the chain and outgoing call unit of door of each floor (n position number of floor levels), the gate interlock detecting unit Un that uses in the utility model embodiment is the high-frequency impulse generating means, and this device is to be made of 555 timer chips and some peripheral bias circuits.What this device produced is square wave, and its mouth is guided to the former limit of isolating transformer T1 after through the RC circuit filtering of being made up of C4, R5, C7, R6.Isolating transformer T1 is used to isolate the impact of interchange 120V high pressure to the high-frequency impulse generating means.The secondary of isolating transformer T1, capacitor C 6, door interlock switch Sn, capacitor C 5 are connected in series mutually, constitute the ac input circuit of rectification unit D.Capacitor C 5, C6 are used for the influence of filtering gate interlock loop 50Hz120V AC signal to commutating circuit D; Photoisolator E is connected between commutating circuit and the state output pin.The utility model medium high frequency pulse generating unit is connected between the chain and outgoing call unit of door of each floor as gate interlock detecting unit Un, the gate interlock detecting unit is to gate interlock on off mode output detection signal, detection signal is by the outgoing call unit, on the communication line of apparatus for controlling elevator, deliver to the elevator master control board, the elevator master control board carries out judgment processing to detection signal, and on outgoing call plate or apparatus for controlling elevator, show the location information of fault floor, in addition, in the gate interlock loop, be serially connected with the LC resonance circuit, be used for blocking rf carrier and constitute path in the gate interlock loop.Can the on off mode control wave of gate interlock output to rectification unit D, is break-make information and is loaded in the impulse singla, finishes the modulation of signal.The high-frequency impulse generating means is connected in the apparatus for controlling elevator that gate interlock automatically detects as shown in Figure 2 by 5 pins.High-frequency impulse generating means figure shown in Figure 3 has marked 5 pins respectively on it, they are respectively that state output pin SIG is that pin 1, carrier generator power pins+5V, GND are that to insert pin be pin 4,5 for

2,3, gate interlock.

Gate interlock on off mode in Fig. 2 detects in the block diagram, 2 layers of circuit structure have been omitted to the n-1 layer, wherein between the gate interlock of each floor and outgoing call unit, all be connected with gate interlock detecting unit Un, every layer connection structure is identical, shape information after gate interlock detecting unit Un (wherein n is a floor) will gather, modulate sends to the communication unit of elevator outgoing call, delivers to the elevator master control board through original communication line on again information and handles.Now the ground floor with floor is the example explanation, the input terminal 3 of gate interlock detecting unit U1 of the present utility model is connected with 2` with the lead-out terminal 3` of outgoing call plate C1 respectively with 2, be used for obtaining+the 5V working power from the outgoing call plate, the lead-out terminal 1 of U1 is connected with the input terminal 1` of outgoing call plate C1, is used for giving outgoing call plate C1 with detection signal.After gate interlock detecting unit U1 is charged, by NE555 is the high-frequency impulse that the high-frequency impulse generation circuit formed of master chip produces, the pin 4 that inserts detecting unit U1 by gate interlock links to each other with S1-2 with the terminal S1-1 of door interlock switch S1 respectively with 5, on the stack door interlock switch S1, constitute and detect the loop, when S1 is closed, detecting unit U1 gives outgoing call plate C1 a low level signal by lead-out terminal pin 1, when S1 disconnected, detecting unit U1 gave outgoing call plate C1 a high level signal by lead-out terminal pin 1.The outgoing call plate is handled delivering to elevator master control board U111 on the information by original CAN-BUS bus after receiving the gate interlock status information that the gate interlock detecting unit sends here, and elevator master control board U111 shows testing result or notifies the related personnel.

The tasks such as generation, collection, communication process and demonstration of information have been finished respectively by above structure.Be aided with corresponding control programs again, promptly can constitute the apparatus for controlling elevator that complete band gate interlock detects automatically.

When the elevator master control board is interlocked improper disconnection by gate interlock contactless switch state decision gate after, send the order of gate interlock state-detection by the CAN-BUS bus to every layer of outgoing call plate Cn, send for after outgoing call plate Cn receives orders gate interlock detecting unit Un, start the high-frequency impulse generation electric circuit inspection on off mode of the gate interlock Sn of floor separately, and signal delivered to outgoing call plate Cn through SIG pin 1, outgoing call plate Cn issues the elevator master control board by the CAN-BUS bus, the elevator master control board shows the result that every layer of information gathers by LCD, or notify the repair and maintenance personnel by the mode of SMS, finish elevator door improper open circuitedly accurately automatically detect of interlocking, the end of LC is paid the limit with supply transformer AC and is linked to each other, and the other end links to each other with gate interlock contactless coil M.

Claims

1, a kind of with the automatic apparatus for controlling elevator that detects of gate interlock, comprise: elevator master control board, car control unit, outgoing call unit, it is characterized in that: between the gate interlock of each floor and outgoing call unit, be connected with the gate interlock detecting unit, the gate interlock detecting unit is to gate interlock on off mode output detection signal, detection signal is given the outgoing call unit, the elevator master control board is given by the CAN-BUS bus in the outgoing call unit, through the location information of apparatus for controlling elevator show gate interlocking fault floor, contact with gate interlock at voltage transformer and to be connected with the LC resonance circuit between the coil.

2, the automatic apparatus for controlling elevator that detects of band gate interlock according to claim 1, it is characterized in that: the gate interlock detecting unit adopts the high-frequency impulse generating means.

3, the apparatus for controlling elevator of the chain automatic detection of band door according to claim 2, it is characterized in that: in the high-frequency impulse generating means, be connected with photoisolator and isolating transformer, wherein: photoisolator is connected between commutating circuit and the state output pin, and isolating transformer is connected high-frequency impulse generation circuit and commutating circuit, electric capacity two ends.