JPH0543638B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an elevator door control device.

[Technical background of the invention and its problems]

A block diagram of a conventional elevator door control device is shown in FIG.

In the figure, reference numeral 1 denotes an elevator control panel for controlling the elevator, and the elevator control panel 1 outputs a door opening/closing signal 1A to a door control device 2. The door control device 2 is composed of a door control circuit 3, a pattern setting circuit 4, a pattern selection circuit 5, a control pattern circuit 6, a main circuit control circuit 7, a main circuit drive circuit 8, and a door main circuit 9.
A is given to the door control circuit 3 in the door control device 2. A door position signal 12A from a door position detector 12, which will be described later, is input to this door control circuit 3, and the door control circuit 3 receives a door position signal 12A from a door position detector 12, which will be described later. Supply voltage value selection signal 3
Output A. In response to this signal, the pattern selection circuit 5 selects the supply voltage data set in the door pattern setting device 4, and the control pattern circuit 6 creates a door motor drive pattern based on it and sends it to the door main circuit control device 7.

As a result, the door main circuit control device 7 sends a main circuit control element switching signal to the main circuit drive circuit 8 based on the input door motor drive pattern, and the main circuit drive circuit 8 outputs a control output in response to this switching signal. Based on this, a drive output for the door motor 11 is generated, and the door motor 11 is drive-controlled.

The door main circuit 9 is composed of semiconductor elements such as thyristors and transistors, and controls the output of the door power supply 10 and supplies it to the door motor 11.

By the way, conventionally, in order to set the opening/closing operation of elevator doors in such a control device, a variable resistor for adjusting the door pattern setting is provided, and the generated door pattern can be adjusted according to the setting value of this variable resistor. This is done by setting in advance standard values determined by the door opening, height, and type in the door pattern setting circuit 4. The torque required for door opening/closing control varies considerably depending on the installation condition of the elevator, so at the installation site it is essential to adjust the door pattern by changing variable resistor settings, and this adjustment takes a considerable amount of time. It required

In addition, the operation of the door is easily visible to passengers, and if it is improperly adjusted, it will be extremely worrisome. It took time to make adjustments, especially for things like doors.

[Purpose of the invention]

The present invention was made in view of the above circumstances, and
It is an object of the present invention to provide an elevator door control device that can automate door pattern adjustment by reducing the time required for the above-mentioned door pattern adjustment.

[Summary of the invention]

That is, in order to achieve the above object, the present invention has the following features:
An elevator door control device that controls a door motor using an elevator door opening/closing signal and a door position detection signal includes a data storage means for storing a door motor drive pattern and a target opening/closing time of the door, and a data storage means for storing a door opening/closing time based on the door position detection signal. It comprises a time detection means for measuring, and a data changing means for changing the door motor drive pattern so as to keep the difference between the actual door opening/closing time determined from the output of the time detecting means and the target door opening/closing time within a predetermined range. , the door opening/closing time is measured from the door position detection signal, and based on this measured time, the door motor drive pattern is set to keep the difference between the measured time and the target door opening/closing time stored in the data storage means within a predetermined range. The door motor drive pattern is changed by the data changing means that changes the door motor drive pattern, and thereby the door is driven until the door can be opened/closed within the target door opening/closing time from the pre-given door motor drive pattern data and the target door opening/closing time. Allow pattern data to be rewritten by itself.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be explained in Figures 1 to 5.
This will be explained with reference to the figures.

FIG. 1 is a block diagram showing an embodiment of the present invention, in which the door pattern setting device part composed of 20 microcomputers is an additional part according to the present invention, and the rest is basically the same as the conventional device explained in FIG. 6. is the same as

The microcomputer 20 is a microprocessor (hereinafter simply referred to as CPU) that serves as the center of control.
21, a storage device 22 that serves as a storage and work area for programs and data, a DA converter 23 that converts output data of the CPU 21 into analog output, and a timer 24.

Next, the operation of this device having the above configuration will be explained. First, when starting the door adjustment for the first time, the door pattern setting signal 1B is sent from the elevator control panel 1.
is input to the CPU 21. Based on this,
The CPU 21 performs operations according to the flowchart shown in FIGS. 4a to 4f. An example of the control speed of the hall door is shown in FIG. In the figure, the horizontal axis indicates the position of the door, with point O being the closed end and point D being the open end.
Point A indicates the engagement point between the car door, which is the elevator door, and the hall door, which is the floor door, point B indicates the end point of acceleration, and point C indicates the start point of deceleration. The vertical axis shows the door speed, A,
The area between points B indicates an acceleration region. Then, the maximum speed V _T is reached at point B. The area between points B and C is a constant speed area, and the area between points C and D is a deceleration area.

Figure 3 shows an example of a door drive pattern. The horizontal axis shows the door position as in Figure 2, and the vertical axis shows the output voltage. Based on this, the voltage supplied to the door motor is determined and the torque is determined. The door speed approximately shown in FIG. 2 can be achieved. Here, the acceleration between points O and A is small in order to reduce the engagement noise in the section until the car door and the hall door engage.

Further, the pattern after point D is for flowing an open lock current, which is a voltage for keeping the door open.

The operation of the microcomputer 20 will be explained according to the flowchart shown in FIGS. 4a to 4f. As shown in the figure, door pattern setting signal 1 is set at step A1.
Upon receiving B, the CPU 21 enters step B1, where it reads acceleration data _a1 given in advance up to point A from the storage device 22, sets it as a (step C1), and sends this data a to the DA converter. 2
3 (step D1). This output is given to the main circuit control circuit 7, and a drive voltage is applied to the door motor 11 based on this output. Next, whether or not the door has started to move is checked in step E1 based on the output of the position detector 12, and when the door has started to move, the timer 24 starts counting (step _F1 ). During this time, the output pattern is added in step G1 until the door reaches point A.
Create an acceleration pattern. In this way, when point A is reached, step I1 is entered to store the data Ta of the timer 24 in the storage device 22, and to change the acceleration, step I1 is entered, data b ₁ is called, and step U1 is continued in the same manner until point B is reached. , M1, N1 are repeated to increment data b and accelerate the door. Next, when point B is reached, the increment is stopped and a constant pattern value is output to the main circuit control circuit 7, thereby driving the door at a constant speed.
Next, when point C is reached, the timer data is stored as TC again (steps O1, P1), and then step Q
1 and call the deceleration d ₁ as the deceleration area,
The door pattern is reduced by subtracting d from the aforementioned top speed b. step here
The subtraction is terminated when the pattern subtraction result reaches the door lock pattern _f1 at W1 and X1. In this way, when the point D is reached, step B2 is entered and the timer data is stored as T _D again. The opening time data T _a obtained in this way,
T _c , T _D are stored in advance in the storage device 22, and the longest value of the target time at point A, point C, and point D, T _a1 , T _c1 , T _D1 and the shortest value, T _a2 , T _c2 , T _D2
If the maximum time exceeds the maximum time, add 1 to each acceleration/deceleration value to increase it, and conversely, if it is shorter than the shortest time, subtract 1 from the acceleration or deceleration value to obtain data a. ₁ , b ₁ and d ₁ and repeat changing the data until the target time is met.
This operation provides a door drive pattern that satisfies the target time. Step after setting is completed.
Send a completion signal to elevator control panel 1 at Y ₂ ,
From then on, normal door opening/closing control is performed using this setting data. The above-described functions of the door pattern setting device using the microcomputer 20 are summarized in a functional block diagram as shown in FIG.

Although only the opening operation has been described in this explanation, automatic setting can be performed in the closing operation using the same method except for the door engagement operation. As a result of performing such control in the present invention, it becomes possible to achieve the desired opening/closing operation of the door by opening and closing the door several times, reducing the amount of time previously spent adjusting the door. , it is possible to obtain stable door opening/closing performance without variations.

〔Effect of the invention〕

As detailed above, according to the present invention, door adjustment can be automated, reducing adjustment time,
It is possible to provide an elevator door control device having characteristics such as being able to obtain stable opening/closing performance with little variation.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a door control device according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of door speed control, and FIG. 3 is a diagram showing an example of a door drive pattern.
FIG. 4 is a diagram for explaining the operation of the microcomputer, FIG. 5 is a functional block diagram of the device according to the present invention, and FIG. 6 is a block diagram of a conventional door control device. 1...Elevator control panel, 2...Door control device, 3...Door control circuit, 7...Main circuit control circuit, 8...Main circuit drive circuit, 9...Door main circuit, 10...Door power supply, 11...Door motor, 1
2...Door position detector, 20...Microcomputer, 21...Microprocessor (CPU),
22...Storage device, 23...DA converter, 24...
...Timer.

Claims (1)

[Claims] 1. In an elevator door control device that controls a door motor using an elevator door opening/closing signal and a door position detection signal, there is provided a data storage means for storing a drive pattern of the door motor and a target opening/closing time of the door, and a data storage means for storing a door opening/closing time based on the door position detection signal. and data changing means for changing the door motor drive pattern in order to keep the difference between the actual door opening/closing time determined from the output of the time detecting means and the target door opening/closing time within a predetermined range. An elevator door control device consisting of: