JP2005298171A - Elevator abnormality detection device - Google Patents

Abstract

The present invention provides an elevator abnormality detection device capable of measuring a level difference when landing on a car more accurately.
An elevator abnormality detection device that measures a level difference between a car floor and a landing floor 13 when landing on a car 3 and determines that an abnormality is detected when the measured value exceeds a predetermined value and prompts inspection adjustment. An input means, for example, a personal computer 12 is provided for inputting an actual measurement value of a step when the car 3 is landed, and correction data for each floor is calculated from the actual measurement value and the measurement value, and this correction data is reflected in the measurement value from the next time. Configuration.
[Selection] Figure 1

Description

  The present invention relates to an elevator abnormality detection device that measures a level difference when landing an elevator and determines an abnormality.

  In general, an elevator is provided with a shielding plate detector on the passenger car side and a shielding plate at the elevator landing position on each floor in the hoistway. For example, the shielding plate having a length of 250 mm is attached so that the center thereof coincides with the center of the landing position of the car, and the elevator is located at a position where the shielding detector detects the shielding plate and travels 125 mm. Control is performed to stop the car. However, the traveling distance after detecting the shielding plate may be slightly longer than 125 mm, and a step may be generated between the car floor and the landing floor.

For this reason, conventionally, an elevator abnormality detection device that monitors various signals of the elevator is provided, and the car position and the car position at the time of stopping are obtained from the elevator from the shielding plate detection, and the car floor and the landing floor when the car is landing There has been proposed a method for detecting an abnormality by calculating a level difference between the two. In such an abnormality detection device, for example, when the travel distance from the shielding plate detection to the car stop is 125 mm, the step difference between the car floor and the landing floor is determined to be 0 mm (see, for example, Patent Document 1).
Japanese Unexamined Patent Publication No. Hei 6-1000025 (paragraph numbers 0007 to 0008)

  The above-described elevator abnormality detection device is based on the premise that the center of the shielding plate installed in the hoistway corresponding to each floor coincides with the center of the landing position. The level difference is measured as 0 mm when the car is stopped. However, there may be a deviation between the center of the shielding plate and the center of the landing position in the mounting stage. In such a case, there is a problem that the level difference at the time of landing cannot be measured accurately.

  The present invention has been made based on the above-described situation in the prior art, and an object of the present invention is to provide an elevator abnormality detection device that can more accurately measure the level difference when the car is landing.

  In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention measures a step between the car floor and the landing floor when the car lands, and determines that it is abnormal when the measured value exceeds a predetermined value. In the elevator abnormality detection device that prompts inspection and adjustment, input means for inputting an actual measurement value of a step at the time of landing on the car is provided, and the actual measurement value is reflected in the measurement value.

  The invention according to claim 1 of the present invention configured as described above measures the level difference between the car floor and the landing floor at the time of landing on each floor, and inputs these measured values by the input means to obtain measured values. reflect. This makes it possible to measure the level difference when landing on the car more accurately.

  The invention according to claim 2 is characterized in that correction data of each floor is calculated from the actual measurement value and the measurement value, and the correction data is reflected in the measurement value from the next time.

  The invention according to claim 2 of the present invention configured as described above calculates the deviation of the shielding plate based on the actual measurement value of each floor input by the input means and the measurement value of each floor measured by the abnormality detection device, Is reflected in the measurement value from the next time as correction data. This makes it possible to measure the level difference when landing on the car more accurately.

  The present invention can accurately measure the step when landing on the car by reflecting the measured value of the step when landing on the car on the measured value.

  Hereinafter, an embodiment of an elevator abnormality detection device according to the present invention will be described with reference to the drawings.

  FIG. 1 is a main part configuration diagram showing an embodiment of an elevator abnormality detection device of the present invention, FIG. 2 is an explanatory diagram showing a correction data table in which correction data is registered, and FIG. 3 is a flowchart showing a process for calculating correction data, FIG. 4 is a flowchart showing a process for calculating a level difference upon landing of the car.

  As shown in FIG. 1, an elevator installed in a building includes a guide rail 2 laid from the top floor to the bottom floor using a locking member (not shown) in the hoistway 1, and along the guide rail 2. The elevator 3 is installed at the top of the hoistway 1 and the hoisting machine 5 is installed on the guide rail 2 corresponding to each landing floor. And a shielding plate 6.

  The elevator abnormality detection device according to the present embodiment is attached to the car 3 and a rotational speed detector 7 that is directly connected to the hoisting machine 5 and detects the rotational speed of the rotary shaft of the hoisting machine 5. A shield detector 8 that detects the position and outputs a detection signal to the control panel 9 and a control panel 9 that controls the elevator are provided on the basis of the stop position of the stop target floor and the current travel position of the car 3. A travel control unit 10 for obtaining a travel command for the car 3, an elevator abnormality detection control unit 11 that is provided on the control panel 9, constantly reads an elevator operation signal from the travel control unit 10 and monitors an elevator abnormality, and an elevator abnormality It can be connected to the detection control 11 and includes an elevator abnormality detection control unit 11 and a personal computer 12 that exchanges various data. In addition, the input means for inputting the actual measurement value of the level difference when the car is landed includes, for example, a personal computer 12.

  The above-described shielding plate 6 has a length of, for example, 250 mm, and is attached so that the center thereof coincides with the center of the passenger car landing position. Theoretically, the shielding plate detector 8 is provided with the shielding plate. When 6 is detected and traveled 125 mm and stopped, the floor 13 of the landing floor and the floor of the car 3 are provided at a height position where they are equal. Further, as shown in FIG. 2, the above-mentioned elevator abnormality detection control unit 11 is provided with a correction data table 14 for storing correction data for each floor, and this elevator abnormality detection control unit 11 is provided with a telephone line (not shown). And an abnormality is reported to the control center in response to the detection of the abnormality of the elevator.

  Here, the process of calculating the correction data will be described with reference to FIG. First, in step S1, when it is determined that the elevator abnormality detection control unit 11 has received the actual measurement data of the landing step input using the personal computer 12, the lowest floor data is set in the variable n as step S2, and then In step 3, the difference between the measured data of the nth floor, that is, the lowest floor and the calculated data of the lowest floor is registered in the correction data table 14 as the correction data of the lowest floor. Thereafter, the same processing is performed from the lowest floor to the highest floor through steps S4 and S5, and correction data for all floors are calculated and registered.

  Next, a process for calculating a level difference upon landing of the car 3 will be described with reference to FIG. When the elevator abnormality detection control unit 11 detects landing stop of the car 3 in step S10, the car position when the shielding plate 6 is detected is read from the travel control unit 10 as step S11, and the car when the car stops as step 12 The position is read from the traveling control unit 10, and the correction data of the stop floor is read from the correction data table of the elevator abnormality detection control unit 11 as step S13. Thereafter, in step S14, it is determined whether or not the vehicle is traveling up. In the case of up traveling, the steps read out in step S11 to step S13 are applied to the calculation formula shown in step S15 to calculate the step upon landing. When it is determined in S14 that the vehicle is traveling down, the values read in steps S11 to S13 are applied to the calculation formula shown in step S17 to calculate the step upon landing.

  According to the present embodiment configured as described above, the deviation of the shielding plate 6 is calculated and registered as correction data from the actual measurement value of the actual landing step and the calculated value calculated by the elevator abnormality detection control unit 11, Accurate measurement can be performed because the step difference measurement of the landing is performed by reflecting the correction data from the next measurement.

It is a principal part block diagram which shows embodiment of the elevator abnormality detection apparatus of this invention. It is explanatory drawing which shows the correction data table in which correction data is registered. It is a flowchart which shows the process which calculates correction data. It is a flowchart which shows the process which calculates the level | step difference at the time of a passenger car landing.

Explanation of symbols

2 Guide rail 3 Passenger car 6 Shield plate 7 Rotation speed detector 8 Shield plate detector 9 Control panel 10 Travel controller 11 Elevator abnormality detection controller 12 Personal computer

Claims (2)

In the elevator abnormality detection device that measures the level difference between the car floor and the landing floor when landing on the car and determines that the measured value exceeds the predetermined value and prompts inspection and adjustment,
An elevator abnormality detection device comprising an input means for inputting an actual measurement value of a level difference when landing on a car, and reflecting the actual measurement value in the measurement value. The elevator abnormality detection device according to claim 1, wherein correction data for each floor is calculated from the actual measurement value and the measurement value, and the correction data is reflected in the measurement value from the next time.

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