CN116331972A - Operation panel of elevator and door device of elevator - Google Patents
Operation panel of elevator and door device of elevator Download PDFInfo
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- CN116331972A CN116331972A CN202210508180.9A CN202210508180A CN116331972A CN 116331972 A CN116331972 A CN 116331972A CN 202210508180 A CN202210508180 A CN 202210508180A CN 116331972 A CN116331972 A CN 116331972A
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- 238000001514 detection method Methods 0.000 claims abstract description 190
- 230000003321 amplification Effects 0.000 claims abstract description 38
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 38
- 238000013459 approach Methods 0.000 claims abstract description 15
- 230000007423 decrease Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
Abstract
An operation panel of an elevator and a door device of the elevator can restrain the reduction of detection precision. The operation panel of the elevator is provided with: a detector; a 1 st operation button including a 1 st transmitter having a 1 st detection surface and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 1 st detection surface; and a 1 st signal line electrically connected to the 1 st transmitter and the detector, the 1 st signal line transmitting a detection signal from the 1 st transmitter to the detector, the 1 st transmitter transmitting an electric signal whose voltage value changes in accordance with the amount of change in capacitance as the detection signal, the detector having: an amplifying unit that amplifies a voltage value of the detection signal received from the 1 st signal line; and a detection unit that detects that the object approaches the 1 st detection surface when it is determined that the voltage value of the detection signal amplified by the amplification unit is greater than a predetermined threshold value.
Description
Technical Field
The present invention relates to an operation panel and a door device of an elevator.
Background
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2013-124166
Disclosure of Invention
However, in the sensor described in patent document 1, a change in electrostatic capacitance is transmitted to a portion that detects the change by an electric signal of a voltage corresponding to the amount of change. At this time, the electric signal is transmitted through the signal line, and thus the voltage of the electric signal is reduced. Therefore, the detection accuracy of the sensor is lowered.
The present invention has been made to solve the above problems. The invention aims to provide an operation panel of an elevator and a door device of the elevator, which can inhibit the reduction of detection precision.
An elevator operation panel of the present invention includes: a detector; a 1 st operation button including a 1 st transmitter having a 1 st detection surface and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 1 st detection surface; and a 1 st signal line electrically connected to the 1 st transmitter and the detector, the 1 st signal line transmitting a detection signal from the 1 st transmitter to the detector, the 1 st transmitter transmitting an electric signal whose voltage value changes in accordance with an amount of change in electrostatic capacitance as the detection signal, the detector having: an amplifying unit that amplifies a voltage value of the detection signal received from the 1 st signal line; and a detection unit that detects that an object approaches the 1 st detection surface when it is determined that the voltage value of the detection signal amplified by the amplification unit is greater than a predetermined threshold value.
The door device of the elevator of the present invention further comprises: a 1 st transmitter provided in the door panel, having a 1 st detection surface, and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 1 st detection surface; a detector for detecting that an object approaches the 1 st detection surface based on a detection signal; a controller that stops the operation of the door panel when the detector detects that the object approaches the 1 st detection surface; and a 1 st signal line electrically connected to the 1 st transmitter and the detector, the 1 st signal line transmitting a detection signal from the 1 st transmitter to the detector, the 1 st transmitter transmitting an electric signal whose voltage value changes in accordance with an amount of change in electrostatic capacitance as the detection signal, the detector having: an amplifying unit that amplifies a voltage value of the detection signal received from the 1 st signal line; and a detection unit that detects that an object approaches the 1 st detection surface when it is determined that the voltage value of the detection signal amplified by the amplification unit is greater than a predetermined threshold value.
Effects of the invention
According to the present invention, the amplifying section amplifies the voltage value of the detection signal. The detection unit detects that the object approaches the detection surface when it is determined that the voltage value of the amplified detection signal is greater than a predetermined threshold value. Therefore, a decrease in detection accuracy can be suppressed.
Drawings
Fig. 1 is an exploded perspective view of an operation panel of an elevator according to embodiment 1.
Fig. 2 is a plan view of the back surface of a panel provided on the operation panel of the elevator according to embodiment 1.
Fig. 3 is a block diagram of an operation panel of the elevator according to embodiment 1.
Fig. 4 is a diagram showing a relationship between the amplification factor of the detection signal amplified by the operation panel of the elevator of embodiment 1 and the length of the signal line.
Fig. 5 is a diagram showing a relationship between a detection distance of an operation panel of the elevator according to embodiment 1 and a length of a signal line.
Fig. 6 is a plan view of the door device of the elevator according to embodiment 2.
Fig. 7 is a block diagram of a door device of an elevator according to embodiment 2.
Description of the reference numerals
1: an operation panel; 2: a case; 3: a panel; 3a: a button hole; 4: a non-contact button; 4a, 4b: a non-contact button; 5. 5a, 5b: a transmitter; 5s: a detection surface; 6: a mounting plate; 7: a detector; 8. 8a, 8b: a signal line; 9: a detection unit; 10: an amplifying section; 20: a door device; 21a, 21b: a door panel; 22: a driving machine; 23: and a controller.
Detailed Description
The manner in which the invention can be practiced is described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated description of this portion is appropriately simplified or omitted.
Fig. 1 is an exploded perspective view of an operation panel of an elevator according to embodiment 1. Fig. 2 is a plan view of the back surface of a panel provided on the operation panel of the elevator according to embodiment 1.
In the elevator system shown in fig. 1, for example, an operation panel 1 is provided inside a car not shown. The operation panel 1 may be provided at a landing, not shown. For example, the operation panel 1 is operated by an operation button to receive an input of a destination floor from a user. The operation panel 1 transmits the received destination floor information to a control panel not shown. The operation panel 1 includes a case 2, a panel (face plate) 3, and a plurality of noncontact buttons 4.
For example, the case 2 is formed in a rectangular parallelepiped shape with one surface open. The case 2 is fitted into the side surface of the car with the opening facing the inside of the car. The panel 3 is provided as a face closing the opening of the case 2. A plurality of button holes 3a are provided on the front surface of the panel 3.
A plurality of noncontact buttons 4 are provided as operation buttons at the positions of the plurality of button holes 3a, respectively. The plurality of noncontact buttons 4 have the same configuration. The noncontact button 4 has a detection surface. The detection surface of the non-contact button 4 faces the inside of the car among the plurality of button holes 3a. The noncontact button 4 is a button that detects: the object is present in a range closer to the detection surface than the detection range. The noncontact button 4 detects a change in electrostatic capacitance due to the presence of the object.
As shown in fig. 2, a plurality of noncontact buttons 4, a mounting plate 6, and a detector 7 are mounted on the back surface of the panel 3. A plurality of signal lines 8 are arranged on the back surface side of the panel 3.
The noncontact button 4 includes a transmitter 5 and a lighting device not shown.
Although not shown in fig. 2, the transmitter 5 has a detection surface 5s as the detection surface of the noncontact button 4. The detection surface 5s is shown in fig. 1 instead of fig. 2. The transmitter 5 transmits a detection signal, which is an electrical signal whose voltage value changes in accordance with the amount of change in the electrostatic capacitance.
Specifically, the transmitter 5 has a pair of electrodes, not shown. The pair of electrodes are disposed apart from each other. A reference voltage is applied to a pair of electrodes. The value of the reference voltage is determined by the reference capacitance between the pair of electrodes. When an object is present near the detection surface 5s, the electrostatic capacitance between the pair of electrodes increases or decreases, and thus changes from the reference electrostatic capacitance. Due to this change in capacitance, the value of the voltage applied to the pair of electrodes changes from the value of the reference voltage. For example, the voltage of the detection signal is a voltage applied to a pair of electrodes. When the value of the voltage changes, the value of the voltage indicated by the detection signal changes from the value of the reference voltage. That is, the voltage value of the detection signal changes in accordance with the amount of change in the electrostatic capacitance between the pair of electrodes.
For example, the illuminator is an LED. The lighting device is lighted when receiving a lighting instruction or when a current flows.
The mounting plate 6 is fixed to the back surface of the panel 3. At the mounting plate 6, a plurality of noncontact buttons 4 are mounted at respective corresponding positions.
For example, the detector 7 is a substrate having a plurality of circuits. The detector 7 is fixed to the back surface of the panel 3. For example, the detector 7 is disposed below the mounting plate 6 on the back surface side of the panel 3. The detector 7 creates information of the destination floor from the detection signal and sends the created information to the control panel.
The plurality of signal lines 8 are conductors capable of transmitting electrical signals. One end of each of the plurality of signal lines 8 is connected to the transmitter 5 of the plurality of noncontact buttons 4. The other end portions of the plurality of signal lines 8 are connected to the detector 7, respectively.
For the purpose of reducing the unnecessary wiring length, the lengths of the plurality of signal lines 8 are different from each other according to the distance from the noncontact button 4 to the detector 7. In fig. 2, the signal lines 8a and 8b are shown as the 1 st signal line and the 2 nd signal line among the plurality of signal lines 8. The signal line 8a connects the non-contact button 4a as the 1 st operation button farthest from the detector 7 and the detector 7. The signal line 8b connects the non-contact button 4b as the 2 nd operation button closest to the detector 7 and the detector 7. The length of the signal line 8a is longer than the length of the signal line 8b.
The detector 7 receives a detection signal from the transmitter 5 via a signal line 8. The detector 7 detects that the noncontact button 4 has been operated based on the detection signal. In this case, the detector 7 creates information of the destination floor corresponding to the non-contact button 4 and sends it to the control panel. Further, as a registration operation, the detector 7 turns on the igniter corresponding to the noncontact button 4.
Next, the detector 7 will be described with reference to fig. 3.
Fig. 3 is a block diagram of an operation panel of the elevator according to embodiment 1. In fig. 3, the non-contact buttons 4a and 4b are shown as the 1 st operation button and the 2 nd operation button among the plurality of non-contact buttons 4. The 1 st transmitter and the 2 nd transmitter out of the plurality of transmitters 5 are shown as a transmitter 5a and a transmitter 5b. Signal lines 8a, 8b of the plurality of signal lines 8 are shown. Although not shown, the transmitter 5a includes a detection surface 5s as a 1 st detection surface. The transmitter 5b includes a detection surface 5s as a 2 nd detection surface.
As shown in fig. 3, the detector 7 includes a detection unit 9 and an amplifying unit 10.
The detection unit 9 can identify the non-contact button 4 that has sent the detection signal. When the voltage value of the received detection signal is greater than a predetermined voltage threshold value, the detection unit 9 detects that the object approaches the detection surface 5s not shown in fig. 3. When detecting that an object approaches the detection surface 5s, the detection unit 9 identifies the destination floor to which the detection signal corresponds. The detection unit 9 creates information on the determined destination floor. The detection unit 9 transmits information of the destination floor to the control panel. At this time, the detection unit 9 turns on the igniter of the noncontact button 4 that has sent out the detection signal.
The amplifying section 10 is provided between the plurality of signal lines 8 and the detecting section 9. The amplifying section 10 receives a detection signal from the signal line 8. The amplifying unit 10 amplifies the voltage of the detection signal received from the signal line 8 at an amplification factor corresponding to the length of the signal line 8. The amplification factor indicates the ratio of amplification from the original voltage. For example, the magnification is set in advance when the operation panel 1 is mounted. The amplifying section 10 can independently set the amplification factors corresponding to each of the plurality of signal lines 8. The amplifying unit 10 transmits the detection signal amplified in voltage to the detecting unit 9. At this time, the amplifying unit 10 transmits the detection signal to the detecting unit 9 while maintaining the correspondence relationship between the detection signal and the signal line 8.
At least one of the detection unit 9 and the amplification unit 10 is realized by a processing circuit on a substrate included in the detector 7. The processing circuitry may also be provided with at least one processor and at least one memory. In this case, for example, the processor reads out a program stored in the memory. The function of the detecting section 9 or the function of the amplifying section 10 may be realized by executing the program by a processor.
For example, a change in electrostatic capacitance occurs in the detection range of the transmitter 5a of the noncontact button 4 a. The transmitter 5a transmits a detection signal indicating the amount of change in capacitance to the amplifying section 10 via the signal line 8 a. The amplifying unit 10 amplifies the voltage of the detection signal at the 1 st amplification factor corresponding to the length of the signal line 8 a. The amplifying unit 10 transmits the amplified detection signal to the detecting unit 9. The detection unit 9 determines whether or not the voltage value of the detection signal received from the amplification unit 10 is greater than a voltage threshold. When it is determined that the voltage value of the detection signal is greater than the voltage threshold value, the detection unit 9 identifies the non-contact button 4a corresponding to the detection signal, and creates information on the destination floor indicated by the non-contact button 4 a. Further, the igniter of the noncontact button 4a is lighted.
When the detection signal is received from the noncontact button 4b, the amplification unit 10 amplifies the voltage of the detection signal at the 2 nd amplification factor corresponding to the length of the signal line 8b in the same manner.
Next, the function of the amplifying section 10 will be described with reference to fig. 4 and 5.
Fig. 4 is a diagram showing a relationship between the amplification factor of the detection signal amplified by the operation panel of the elevator of embodiment 1 and the length of the signal line. Fig. 5 is a diagram showing a relationship between a detection distance of an operation panel of the elevator according to embodiment 1 and a length of a signal line.
Fig. 4 shows a graph representing the relationship between the amplification factor of the voltage and the length of the signal line 8. The horizontal axis represents the length of the signal line 8. The length of the signal line 8 is in mm. The vertical axis is the amplification factor of the voltage amplified by the amplifying section 10. The unit of magnification is percent (%). The longer the length of the signal line 8 is, the larger the amplification factor is set.
Fig. 5 shows a graph showing the relationship between the detection distance of the transmitter 5 and the length of the signal line 8. The horizontal axis represents the length of the signal line 8. The vertical axis is the detection distance of the transmitter 5. The detection distance is the maximum distance from the detection surface of the transmitter 5 to the object that is the object that can be detected by the transmitter 5 and the detector 7. For example, assume that the object is a human finger. When the detection unit 9 determines that the voltage value of the detection signal transmitted from the transmitter 5 is greater than the voltage threshold, it is regarded that the detection is possible.
The points shown by the triangles are actual result values in the case where the amplifying unit 10 does not amplify the voltage of the detection signal. The curve X shown by the broken line is a graph showing the tendency of the evolution of the actual result value in the case where the amplifying unit 10 does not amplify the voltage of the detection signal.
When the amplifying unit 10 does not amplify the voltage of the detection signal, the longer the length of the signal line 8 is, the shorter the detection distance is. This is due to the fact that the voltage value of the detection signal is lowered by the internal resistance of the signal line 8. The longer the length of the signal line 8 is, the larger the amount of decrease in the voltage value of the detection signal is. For example, in the case where the transmitter 5 emits a detection signal of a voltage value exceeding the reference voltage value due to a change in electrostatic capacitance, a decrease in the voltage value caused by the signal line 8 occurs, and thus the voltage value shown by the detection signal may be lower than the reference voltage value.
The point indicated by the circle is an actual value obtained when the amplifying unit 10 amplifies the voltage of the detection signal according to the length of the signal line 8. The curve Y shown by the solid line is a graph showing the tendency of the evolution of the actual result value when the amplifying unit 10 amplifies the voltage of the detection signal.
When the amplifying unit 10 amplifies the voltage of the detection signal, the detection distance becomes substantially the same regardless of the length of the signal line 8. This is due to the fact that the voltage of the detection signal is amplified by the amount of the decrease in the voltage value caused by the signal line 8. For example, the magnification is set so that the detection distances of all the noncontact buttons 4 are uniform.
Fig. 4 and 5 show only an example of the actual measurement value, and specific values of the length, the amplification factor, and the detection distance of the signal line 8 are not limited to those shown in fig. 4 and 5.
According to embodiment 1 described above, the operation panel 1 includes the 1 st operation button including the transmitter 5 as the 1 st transmitter, the detector 7, and the signal line 8 as the 1 st signal line. The detector 7 includes a detection unit 9 and an amplification unit 10. The amplifying unit 10 amplifies the voltage of the detection signal and sends the amplified voltage to the detecting unit 9. The detection unit 9 detects that the object is approaching when the voltage value of the detection signal is greater than a predetermined threshold value. In general, in a sensor that detects a change in electrostatic capacitance, the amount of change in the electrostatic capacitance is small. Even if a change in capacitance that should be detected originally, that is, a change in capacitance that has a change amount exceeding a threshold value, there is a concern that the change is not detected in the detection unit 9 due to a decrease in voltage during transmission through the signal line. That is, there is a concern that the detection accuracy of the sensor constituted by the transmitter 5, the detector 7, and the signal line 8 may be lowered. According to the operation panel 1 of the present embodiment, the voltage of the detection signal reduced during transmission through the signal line 8 can be restored by electric amplification. Therefore, the decrease in the detection accuracy of the sensor can be suppressed. As a result, for example, in the noncontact button 4, it is possible to suppress the detection distance and the detection range from becoming smaller.
The operation panel 1 may be provided with a touch button of the transmitter 5 instead of the non-contact button 4. In this case, the touch button is a button that detects a change in capacitance in the same manner as the non-contact button 4. The touch button is operated by a contact of a part of the human body. Even in the case of a touch button, the decrease in the voltage value due to the length of the signal line 8 can be suppressed, and therefore, the decrease in the detection accuracy of the button can be suppressed.
The amplifying unit 10 of the detector 7 amplifies the voltage of the detection signal at the 1 st amplification factor corresponding to the length of the signal line 8. Therefore, the voltage of the detection signal can be amplified according to the length of the signal line 8 at the time of actually wiring.
Further, the amplifying section 10 of the detector 7 amplifies the voltage of the detection signal at different amplification ratios according to the difference in length between the 1 st signal line and the 2 nd signal line. In general, conditions such as the number of floors to which the car is to stop when the operation panel 1 is installed, and the arrangement positions of buttons as required conditions at the time of ordering are different for each elevator system. On the other hand, the space inside the operation panel 1 is defined to some extent. And, the space is relatively narrow. Therefore, there are many restrictions in determining the arrangement of the devices provided inside the operation panel 1. For example, the position where the detector 7 is set is limited by the position of other devices. Therefore, the lengths of the plurality of signal lines 8 are different from each other. In the present embodiment, the amplifying unit 10 can set the amplification factors corresponding to the signal lines 8 having different lengths, respectively. As a result, it is possible to suppress a decrease in the detection accuracy of the sensor while ensuring the degree of freedom of the actual layout. Further, it is possible to suppress the occurrence of a deviation in the detection range of the plurality of noncontact buttons 4.
Fig. 6 is a plan view of the door device of the elevator according to embodiment 2. In embodiment 2, the same or corresponding parts as those in embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
In the elevator system shown in fig. 6, the door device 20 is provided to the car. For example, the door apparatus 20 is a door of a left-right opening type. The door apparatus 20 includes a pair of door panels 21a and 21b, a driver 22, a controller 23, a plurality of transmitters 5, a detector 7, and a plurality of signal lines 8.
The pair of door panels 21a, 21b are provided at the entrance and exit of the car, respectively. Although not shown in detail, the pair of door panels 21a and 21b are forced from the driver 22 to open and close in directions indicated by arrows D1 and D2, respectively. The controller 23 is provided at the upper part of the car. The controller 23 controls the opening and closing states of the door panels 21a and 21b by controlling the operation of the driver 22.
The plurality of transmitters 5 according to embodiment 2 have substantially the same configuration as the transmitter 5 according to embodiment 1. The detection surface 5s of the plurality of transmitters 5 of embodiment 2 may be larger than the detection surface 5s of the transmitter 5 of embodiment 1.
The plurality of transmitters 5 are provided as non-contact sensors in the pair of door panels 21a, 21b, respectively. Several transmitters 5 among the plurality of transmitters 5 are provided on the surface of the door panel 21a facing the inside of the car. The transmitter 5a, which is the 1 st transmitter among the plurality of transmitters 5, is provided at the lower portion of the door panel 21 a. The remaining transmitters 5 among the plurality of transmitters 5 are provided on the inner side of the car of the door panel 21b. The transmitter 5b, which is the 2 nd transmitter among the plurality of transmitters 5, is provided at an upper portion of the door panel 21b. The detection surfaces 5s of the plurality of transmitters 5 face the inside of the car.
The detector 7 of embodiment 2 has substantially the same structure as the detector 7 of embodiment 1. The detector 7 is provided at the upper part of the car. For example, the detector 7 is disposed above the door panel 21b. The detector 7 is electrically connected to the controller 23.
The plurality of signal lines 8 of embodiment 2 have substantially the same configuration as the signal lines 8 of embodiment 1. The lengths of the plurality of signal lines 8 are different from each other according to the distance from the transmitter 5 to the detector 7. In fig. 6, the signal lines 8a and 8b are shown as the 1 st signal line and the 2 nd signal line among the plurality of signal lines 8. The signal line 8a connects the transmitter 5a and the detector 7. The signal line 8b connects the transmitter 5b and the detector 7. The length of the signal line 8a is longer than the length of the signal line 8b.
In embodiment 2, the plurality of transmitters 5 and the detector 7 function as a safety device for the door device 20. When the car reaches the landing, the controller 23 opens the pair of door panels 21a and 21b in the closed state by the drive machine 22. At this time, if a person's carried article present in the car is present near the door panel 21a, the carried article may be caught in a gap between the opened door panel 21a and the car. In order to suppress entanglement, when an object is present near the pair of door panels 21a, 21b, the transmitter 5 transmits a detection signal showing a change in electrostatic capacitance caused by the object. The detector 7 transmits a signal indicating that the object is approaching the detection surface 5s to the controller 23 based on the detection signal. When receiving the signal from the detector 7, the controller 23 stops the operation of opening the door panels 21a and 21b.
Next, the detector 7 according to embodiment 2 will be described with reference to fig. 7.
Fig. 7 is a block diagram of a door device of an elevator according to embodiment 2. In addition, fig. 7 shows a transmitter 5a and a transmitter 5b among the plurality of transmitters 5. Fig. 7 shows signal lines 8a, 8b among the plurality of signal lines 8.
As shown in fig. 7, in embodiment 2, the detector 7 includes a detecting section 9 and an amplifying section 10 substantially similar to those in embodiment 1.
When a change in electrostatic capacitance occurs in the transmitter 5, the transmitter 5 transmits a detection signal. The detection unit 9 detects that the object approaches the detection surface 5s when the voltage value indicated by the received detection signal is greater than a predetermined voltage threshold value. In addition, the voltage threshold is set according to the safe distance between the door panels 21a, 21b and the object. In this case, the detection unit 9 transmits a signal indicating that the object approaches the detection surface 5s to the controller 23.
The amplifying unit 10 amplifies the voltage of the detection signal received from the signal line 8 at an amplification factor corresponding to the length of the signal line. The amplifying unit 10 transmits the voltage-amplified detection signal to the detecting unit 9.
According to embodiment 2 described above, the gate device 20 includes the transmitter 5, the detector 7, the controller 23, and the signal line 8. According to the gate device 20 of the present embodiment, the voltage of the detection signal reduced during transmission through the signal line 8 can be restored. Therefore, a decrease in the detection accuracy of the noncontact sensor including the transmitter 5, the detector 7, and the signal line 8 can be suppressed. As a result, for example, in the noncontact sensor, it is possible to suppress the detection distance and the detection range from becoming smaller.
The transmitter 5 may be provided as a touch sensor to the pair of door panels 21a and 21b, instead of a noncontact sensor. In this case, the touch sensor is a sensor that detects a change in capacitance in the same manner as a non-contact sensor. The touch sensor operates when an object is in contact with the detection surface 5s. Even in the case of a touch sensor, the decrease in the voltage value due to the length of the signal line 8 can be suppressed, and therefore the detection accuracy of the sensor can be improved.
The amplifying unit 10 of the detector 7 amplifies the voltage of the detection signal at different amplification ratios according to the difference in length between the 1 st signal line and the 2 nd signal line. In general, conditions such as the structure of a building when the door apparatus 20 is installed, the structure of a car, and the arrangement position of a door as a requirement condition at the time of ordering are different for each elevator system. On the other hand, the space formed by the door apparatus 20 is defined to some extent. Furthermore, the space is relatively narrow. Therefore, for example, there are many restrictions in determining the wiring of the signal line 8. Therefore, the lengths of the plurality of signal lines 8 are different from each other. In the present embodiment, the amplifying unit 10 can set the amplification factors corresponding to the signal lines 8 having different lengths, respectively. As a result, it is possible to suppress a decrease in the detection accuracy of the sensor while ensuring the degree of freedom of the actual layout. Further, it is possible to suppress the occurrence of a deviation in the detection ranges of the plurality of non-contact sensors.
The noncontact sensor according to embodiment 2 can be applied to a landing door as a door device. In this case, the detector 7 may transmit a signal to the control panel that detects that the object approaches the detection surface 5s. The control panel may stop the opening and closing operation of the door device according to the signal.
Claims (8)
1. An operation panel of an elevator, wherein the operation panel of the elevator comprises:
a detector;
a 1 st operation button including a 1 st transmitter having a 1 st detection surface and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 1 st detection surface; and
a 1 st signal line electrically connected to the 1 st transmitter and the detector, for transmitting a detection signal from the 1 st transmitter to the detector,
the 1 st transmitter transmits an electric signal whose voltage value varies in accordance with the amount of change in electrostatic capacitance as a detection signal,
the detector has:
an amplifying unit that amplifies a voltage value of the detection signal received from the 1 st signal line; and
and a detection unit that detects that an object approaches the 1 st detection surface when it is determined that the voltage value of the detection signal amplified by the amplification unit is greater than a predetermined threshold value.
2. The operating panel of an elevator according to claim 1, wherein,
the 1 st operation button is a touch button or a non-contact button.
3. The operating panel of an elevator according to claim 1 or 2, wherein,
the amplifying unit amplifies the voltage value of the detection signal at a 1 st amplification factor corresponding to the length of the 1 st signal line.
4. The operation panel of the elevator according to claim 3, wherein the operation panel of the elevator further comprises:
a 2 nd operation button including a 2 nd transmitter having a 2 nd detection surface and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 2 nd detection surface; and
a 2 nd signal line having a different length from the 1 st signal line, connected to the 2 nd transmitter and the detector, respectively, for transmitting a detection signal from the 2 nd transmitter to the detector,
the 2 nd transmitter transmits an electric signal whose voltage value varies in accordance with the amount of change in electrostatic capacitance as a detection signal,
the amplification unit amplifies the voltage value of the detection signal at a 2 nd amplification factor, which is an amplification factor corresponding to the length of the 2 nd signal line and has a value different from the 1 st amplification factor.
5. A door device for an elevator, wherein the door device for an elevator comprises:
a 1 st transmitter provided in the door panel, having a 1 st detection surface, and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 1 st detection surface;
a detector for detecting that an object approaches the 1 st detection surface based on a detection signal;
a controller that stops the operation of the door panel when the detector detects that the object approaches the 1 st detection surface; and
a 1 st signal line electrically connected to the 1 st transmitter and the detector, for transmitting a detection signal from the 1 st transmitter to the detector,
the 1 st transmitter transmits an electric signal whose voltage value varies in accordance with the amount of change in electrostatic capacitance as a detection signal,
the detector has:
an amplifying unit that amplifies a voltage value of the detection signal received from the 1 st signal line; and
and a detection unit that detects that an object approaches the 1 st detection surface when it is determined that the voltage value of the detection signal amplified by the amplification unit is greater than a predetermined threshold value.
6. The door device of an elevator according to claim 5, wherein,
the 1 st transmitter is a touch sensor or a non-contact sensor.
7. The door arrangement of an elevator according to claim 5 or 6, wherein,
the amplifying unit amplifies the voltage value of the detection signal at a 1 st amplification factor corresponding to the length of the 1 st signal line.
8. The door device of an elevator according to claim 7, wherein the door device of an elevator further comprises:
a 2 nd transmitter provided at a different position of the door panel from the 1 st transmitter, having a 2 nd detection surface, and transmitting a detection signal indicating a change in electrostatic capacitance caused by an object approaching the 2 nd detection surface; and
a 2 nd signal line having a different length from the 1 st signal line, connected to the 2 nd transmitter and the detector, respectively, for transmitting a detection signal from the 2 nd transmitter to the detector,
the 2 nd transmitter transmits an electric signal whose voltage value varies in accordance with the amount of change in electrostatic capacitance as a detection signal,
the amplification unit amplifies the voltage value of the detection signal at a 2 nd amplification factor, which is an amplification factor corresponding to the length of the 2 nd signal line and has a value different from the 1 st amplification factor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021208270A JP7211480B1 (en) | 2021-12-22 | 2021-12-22 | elevator control panel |
| JP2021-208270 | 2021-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116331972A true CN116331972A (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210508180.9A Pending CN116331972A (en) | 2021-12-22 | 2022-05-11 | Operation panel of elevator and door device of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7211480B1 (en) |
| CN (1) | CN116331972A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125279U (en) * | 1979-02-28 | 1980-09-05 | ||
| JPH1025079A (en) * | 1996-07-08 | 1998-01-27 | Toshiba Corp | Elevator controller |
| JP2004299876A (en) * | 2003-03-31 | 2004-10-28 | Toshiba Elevator Co Ltd | Call button of elevator |
| WO2020084660A1 (en) * | 2018-10-22 | 2020-04-30 | 三菱電機株式会社 | Elevator operation button system |
-
2021
- 2021-12-22 JP JP2021208270A patent/JP7211480B1/en active Active
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2022
- 2022-05-11 CN CN202210508180.9A patent/CN116331972A/en active Pending
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| Publication number | Publication date |
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| JP2023092949A (en) | 2023-07-04 |
| JP7211480B1 (en) | 2023-01-24 |
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