JPS5869686A - Transmitter for hall calling signal of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Description of the Technical Field The present invention provides an elevator hall call signal that transmits a hall call signal generated in an elevator hall and necessary for controlling elevator operation to a control panel installed in an elevator machine room. Regarding transmission equipment.

(b) Description of Prior Art Conventionally, the hall call signals necessary for controlling elevator operation generated in each elevator hall are sent to each hall by transmission lines installed between each elevator hall and a control panel installed in the machine room. Each call signal was transmitted independently to the control panel and connected to the input port of the microcomputer built into the control panel. This method has the disadvantage that as the number of service floors increases, the number of transmission lines and microcomputer input ports increases, resulting in an enormous increase in facility costs.

(C) Purpose and Summary of the Invention The present invention was made in view of the above points, and it converts the hall call signals generated in each hall of the elevator into specific transmission signals and transmits them to the machine room through a common transmission line. This equipment provides an elevator hall call signal transmission device that transmits to the control panel and minimizes the number of transmission lines and microcomputer input ports. Converting it into a hall call transmission signal of l pulse having a time width,
This transmission signal is transmitted to a control panel in a machine room through a single transmission line, and the pulse width is added and counted using clock pulses, converted into a binary code, and inputted into a microcomputer.

(d) Configuration of the Invention The configuration of an embodiment of the elevator hall call signal transmission device of the present invention will be described below.

Figure 1 is a block diagram showing the configuration of the hall call signal transmitter installed in each hall of the elevator hall call signal transmission device.
This is shown for the call to ascend the floor (IF), and the same applies to the ascending and descending of other floors.

In Figure 1, l is a push button switch for registering a hall call, 2 is a hall call signal generation detection circuit that outputs inverted output in one shot, which may be a monostable multivibrator, and 3 is a hall call pulse generation signal circuit, which is usually used. 4 may be a hall call pulse generation circuit that converts the rising and falling hall call signals for each hall into pulses with unique time widths, and 5 may be a monostable multivibrator. 5 may be a monostable multivibrator. For example, 6 is an insulated step-up circuit made of a photocoupler, and its output signal is transmitted to the control panel in the machine room as a hall call transmission signal.6 is an insulated step-down circuit made of a photocoupler, for example, and the L signal is manually input to signal E to prohibit hall call detection. Output. 7 is a resistor for stabilizing the hall call transmission signal, and is connected to wires P and N.
are the positive and negative power lines.

Next, we will explain the hall call signal receiver shown in Figure 2 that converts the hall call transmission signal transmitted to the machine room into a binary code parallel control signal.0 In Figure 2, 11 is the initial count number O. 12 is a pulse generator that generates a pulse with a period T related to the period τ of the hall call pulse, which will be described later. , may be an unstable multivibrator with operation start control, 13 is a synchronization signal generation circuit for data loading, 14 is a synchronization signal generation circuit for data latch, both 13 and 14 may be monostable multivibrators, 15 is a calculation command signal The generation circuit outputs the pulse generator operation signal P and the addition counter clear signal Q, and turns it on.
, OFF inverting element may be used. 16 may be a latch circuit commonly used in a storage circuit for output data of an addition counter. Reference numeral 17 is an isolated step-down circuit made of a photocoupler, for example. Reference numeral 18 is a microcomputer interrupt signal generation circuit, which may be a monostable multivibrator. Reference numeral 19 is an input port of the microcomputer.

(e) Function of the Invention The function of an embodiment of the elevator hall call signal transmission device of the present invention will be explained below.

FIG. 3 shows an operation time chart of the hall call signal transmitter shown in FIG. 1. Hereinafter, the operation of the hall call signal transmitter shown in FIG. 1 will be explained with reference to FIG.

In FIG. 1, for example, when the push button switch l for registering a descending hall call on the second floor (2F) is turned on, the up edge of the A signal is detected by the hall call signal generation detection circuit 2 at time T1 shown in FIG. A one-shot output signal C is generated. At that time, the hall call detection prohibition signal E is OFF.
In the state F', the Hall call pulse generation signal F, which is the output signal of the Hall call pulse generation signal circuit 3, is turned ON, and the up edge of the F signal is captured by the pole call pulse generation circuit 4, and a certain pulse width (τ) is generated. A hall call pulse signal (■) is generated.The pulse width (τ) of this H signal is initially set and is set to a unique value corresponding to each hall and up/down call. The rest is constant.

Further, this pulse width (τ) is determined by the period of the clock pulse signal of the addition counter 11 in the hall call signal receiver shown in FIG. 2, which will be explained later. It is now easy to initialize τ based on the relationship.

(0,5+n)'I'≦r<(1,5+n)T
−・−・−・−(1) n=0.1.2.・・・・・・
...For example, for a descending call on the second floor, τ is calculated using the above equation (1) as n=2. −”)7025T≦τ<3.5T
(7) If the initial setting is τ=25T so as to satisfy the condition, the hall call pulse signal H, which is the output signal of the hall call pulse generation circuit 4, becomes as shown in H in FIG.

Next, the hall call pulse signal H is input to the insulated booster circuit 5, which outputs a hall call transmission signal. Further, this hall call transmission signal is transmitted to each hall, inputted to an insulated step-down circuit 6 of a hall call signal transmitter installed in each hall, and outputs a hall call detection prohibition signal E. So T1
At this point, the E signal turns ON, and the hall call pulse generation signal F immediately turns OFF. When a hall call transmission signal is being output from one of the halls in the series, the output signal E of the insulated step-down circuit 6 is in the ON state, and in other halls, even though the push button switch l is operated, the hall call transmission signal is output. After the output of the signal H pulse signal H is completed and the hall call detection prohibition signal E changes to the OFF state again, by operating the push button switch 1 of any hall, a new next hall call pulse signal can be output. This makes it possible to generate H. At time T in Figure 3, the hall call detection prohibition signal E is OFF.
Since it has returned to the F state, when the push button switch 1 for the first floor up call is turned on, the hall call pulse J is output in the same way as the operation after time 18 described above. In addition, in the time chart of Fig. 3, the hall call pulse width (τ) for the first floor ascending call is 1.5 T≦τ<2.5 T (n=
The case is shown in which the initial setting is τ=15T, which satisfies the condition 1). Hall call transmission signals output from each hall are transmitted to the control panel in the machine room in a time-sharing manner through a single transmission line that crosses each hall.

Fig. 4 shows an operation time chart of the hall call signal receiver shown in Fig. 2, and the operation of the hall call signal receiver shown in Fig. 2 will be explained below with reference to Fig. 4. .

The hall call transmission signal transmitted to the machine room is insulated and stepped down by the insulated step-down circuit 17, and is sent as the hall call serial control signal M to the data load synchronization signal generation circuit 13, data latch synchronization signal generation circuit 14, and calculation command. The signal is input to the signal generation circuit 15. The data load synchronization signal generation circuit 13 captures the up edge (T1, T3) shown in FIG.
1 data load signal N is output. At the same time, the operation command signal generation circuit 15 captures the up edge (TI, T3) of the hall call serial control signal M, turns on the operation signal P of the pulse generator 12, and turns on the clear signal Q''Ir, OF' of the addition count 11. The signal P thus generated is input to the pulse generator 12, and the pulse generator 12 outputs the clock pulse signal R of the addition counter 11.

The addition counter 11 adds and counts the clock pulse signal R from the pulse generator 12 in synchronization with the data load signal N from the data load synchronization signal generation circuit 13, and outputs T, (J, V, W, The data is input to the memory circuit 16.

In this way, the addition counter 11 continues to add and count the clock pulse signal R from the pulse generator 12, and when the hall call serial control signal M, that is, the hall call transmission signal ends, the data latch synchronization signal generation circuit 14 starts counting. , captures the down edge (T3, T4) of the hall call serial control signal M and outputs the data latch signal S to the memory circuit 16. Then, the memory circuit 16 receives the S signal dowage (T2 $
T4), the data is latched, and the parallel control signals t and u are output.

Obtain v and w. This data latch signal S is also input to the calculation command signal generation circuit 15.
captures the down edge (T2a, T4a) of the S signal and inverts the output signal P to the 01''F state and the signal Q to the ON state. When P is turned off, the output of the clock pulse signal hole is stopped.

The addition counter 11 is cleared and stops counting when the signal Q turns ON.

The signal S is also input to the microcomputer 1tl signal generation circuit, and the data latch signal S's dallas (
T2a, T4a) and generates an interrupt signal X. Using this interrupt signal The converted signal is read into the microcomputer memory, and hall call registration is completed.

(f) As described in detail, according to the elevator hall call transmission device of the present invention, a large number of ascending and descending hall calls of each hall serviced by an elevator can be transmitted through one common transmission line and two It can be transmitted to the control panel in the machine room using a power line, and only one board is required, including the input isolation circuit for the microcomputer built into the control panel, significantly reducing equipment costs. can.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a block diagram of an Elmbeek hall call signal transmitter, FIG. 2 is a block diagram of a hall call signal receiver, and FIG. 3 is a block diagram of a hall call signal receiver. Operation time chart, FIG. 4 is the operation time chart of FIG. 2. l...Push button switch 2...Hall call signal generation detection circuit 3...Hall call pulse generation signal circuit 4...Hall call pulse generation circuit 5...Insulated step-up circuit, 6...Insulated step-down circuit 7...
・Resistor 11...addition counter, 12...pulse generator 13
... Synchronous signal generation circuit for data load 14 ... Synchronous signal generation circuit for data latch 15 ... Arithmetic command signal generation circuit, 16 ... Memory circuit 17 ... Isolated step-down circuit, 18 ... Interrupt Signal generation circuit 19...Microcomputer input board (7317) Representative patent attorney Kensuke Norichika (and one other person) Figure 1 Figure 2

Claims (1)

[Claims] A hall call signal transmitter converts the ascending and descending hall call signals for each service hall of the elevator into pulses with a unique time width, and insulates and boosts the voltage to create a hall call transmission signal. What is claimed is: 1. A hall call signal transmission device for an elevator, comprising a hall call signal receiver that adds and counts digital counts using clock pulses, stores the digital counts, and outputs the stored signals as parallel control signals.