WO2018100598A1 - Elevator control system and elevator control device - Google Patents
Elevator control system and elevator control device Download PDFInfo
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- WO2018100598A1 WO2018100598A1 PCT/JP2016/085258 JP2016085258W WO2018100598A1 WO 2018100598 A1 WO2018100598 A1 WO 2018100598A1 JP 2016085258 W JP2016085258 W JP 2016085258W WO 2018100598 A1 WO2018100598 A1 WO 2018100598A1
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- car
- encoder
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- elevator control
- detection sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/02—Position or depth indicators
-
- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
Definitions
- the present invention relates to an elevator control system and an elevator control device.
- an encoder is used to detect the car position and speed. If the encoder signal line is disconnected, the car position and speed may be erroneously detected, which is dangerous. For this reason, a technique for detecting the disconnection of the signal line of the encoder has been devised.
- Patent Document 1 power is supplied from the control device to the encoder, the processing board of the encoder is looped, and a power line that forms a line that is returned to the control device again, and the encoder is returned to the control device. It is described that a disconnection detection circuit for converting an output signal of a power supply line into a digital signal and inputting the digital signal to a central processing unit and detecting a disconnection of the signal line by this circuit is described.
- Patent Document 1 requires a dedicated disconnection detection circuit in order to detect the disconnection of the encoder signal line. Therefore, it is not considered to detect the disconnection of the encoder signal line without the disconnection detection circuit.
- the elevator control system includes a control device.
- the control device acquires the governor encoder signal, calculates the position data of the car from the governor encoder signal, and detects the position data of the car and the object to be detected installed in the hoistway. The disconnection of the governor encoder is detected based on the detected signal.
- the schematic block diagram of the elevator by one Embodiment of this invention The flowchart which detects the failure including the disconnection of the encoder by one Embodiment of this invention.
- the flowchart which issues the fault containing the disconnection of the encoder by one Embodiment of this invention is a flowchart which issues the fault containing the disconnection of the encoder by one Embodiment of this invention.
- FIG. 1 shows the overall configuration of an elevator according to an embodiment of the present invention.
- the elevator in the present embodiment is a so-called slidable elevator in which the car 1 is connected by a counterweight 2 and a main rope 3.
- the motor 4 drives the main rope 3, the car 1 moves up and down in the hoistway.
- the motor 4 is provided with a hoisting machine brake 5, and when the hoisting machine brake 5 operates, the rotation of the motor 4 is prevented.
- the governor rope 6 is pulled as the car 1 moves up and down to rotate the governor 7 (governor pulley).
- the governor 7 is provided with an encoder 8 (a governor encoder).
- the encoder 8 is attached to the shaft of the governor 7 and rotates together with the governor 7 to generate a pulse signal.
- a photoelectric sensor 9 is provided on the upper portion of the car 1, and detects the detected object 10 installed at each floor position.
- a control controller 12 and a safety controller 13 are provided inside the control panel 11 (control device).
- the controller 12 outputs an operation command to the motor 4 and the brake 5 to control the raising / lowering operation of the car 1.
- the controller 12 is connected to the photoelectric sensor 9 via the tail cord 14, and when the photoelectric sensor 9 detects the detection body 10, the car 1 is a position where passengers can get on and off. It is determined that it is in the door zone indicating that the door is opened and closed. Furthermore, when detecting an abnormal state of any of the devices, the controller 12 can notify the control center and notify maintenance personnel.
- the safety controller 13 is connected to the encoder 8 and the photoelectric sensor 9 and calculates the position and speed of the car 1 based on these signals.
- the safety controller 13 detects an abnormal state such as overshooting or overspeed of the car 1, the safety controller 13 cuts off the power supply to the motor 4 and the brake 5 and puts the car 1 into a braking state.
- the safety controller 13 calculates position data indicating where the photoelectric sensor 9 is located in the hoistway based on the signal from the encoder 8. If the encoder 8 and the photoelectric sensor 9 are normal, if the position data is in the detection area 15, the photoelectric sensor 9 has detected the detected object 10, and if the position data is in the non-detection area 16. The photoelectric sensor 9 does not detect the detected object 10. It should be noted that the detection area 15 and the non-detection area 16 are not completely in conflict with each other in consideration of installation errors of non-detection bodies and position data calculation errors, and there are areas that are neither.
- control device detects whether the position data of the car is within the detection area of the position detection sensor and the detection signal is output, and the position data of the car is outside the detection area of the position detection sensor. Is not output, it is determined that the governor encoder and the position detection sensor are normal.
- FIG. 2 is a flowchart for detecting a failure including disconnection of the encoder 8 by the safety controller 13 according to an embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described for each step.
- Step 101 The safety controller 13 determines whether or not the photoelectric sensor 9 detects the detected object 10. If it has been detected, the process proceeds to step 102, and if it has not been detected, the process proceeds to step 106.
- Step 102 The safety controller 13 determines whether or not the position data is in the non-detection area 16. As described above, usually, when the position data is the non-detection region 16, the photoelectric sensor 9 does not detect the detection target 10. Therefore, as described in step 101, when the position data is in the non-detection region 16 even though it is determined that the photoelectric sensor detects the detection target 10, the signal line of the encoder 8 is disconnected. In some cases, the safety controller 13 has not been able to update the position data, or the photoelectric sensor 9 has not detected the detected object 10 and has transmitted a detection signal to the safety controller 13 due to a failure. Conceivable. If the position data is in the non-detection area 16, the process proceeds to step 103. Otherwise, this flow ends.
- Step 103 In step 102, it is determined that the signal line of the encoder 8 is broken or that the photoelectric sensor 9 has failed. That is, the control device detects a failure of the governor encoder or the position detection sensor when the position data of the car is outside the detection area of the position detection sensor and a detection signal is output. In this step, in order to determine which is abnormal, the safety controller 13 determines whether the speed data of the car 1 calculated based on the signal from the encoder 8 is zero. If the speed data is 0, the process proceeds to step 104; otherwise, the process proceeds to step 105.
- Step 104 If the speed data is 0, it can be determined that the signal line of the encoder 8 is disconnected. In this step, the safety controller 13 transmits an encoder disconnection signal to the controller 12. Then, it moves to step 108.
- Step 105 If it is determined that the speed data is not 0, the signal line of the encoder 8 is not broken, so that it can be determined that the photoelectric sensor 9 is out of order.
- the safety controller 13 transmits a photoelectric sensor failure signal to the controller 12. Then, it moves to step 108. That is, the control device calculates the speed data of the car from the signal of the governor encoder, and detects the disconnection of the encoder when the speed data is 0, and detects the failure of the position detection sensor when the speed data is not 0.
- Step 106 If the photoelectric sensor has not detected the detected object, in this step, the safety controller 13 determines whether or not the position data is the detection region 15. As described above, usually, when the position data is the detection region 15, the photoelectric sensor 9 detects the detection target 10. Therefore, if it is determined in step 101 that the photoelectric sensor has not detected the detected object 10, but the position data is in the detection region 15, the signal line of the encoder 8 is disconnected. A case where the safety controller 13 cannot update the position data or a case where the photoelectric sensor 9 detects the detected object 10 but does not transmit a detection signal to the safety controller 13 due to a failure is considered. It is done. If the position data is in the detection area 15, the process proceeds to step 107. Otherwise, this flow ends.
- Step 107 The safety controller 13 transmits an unspecified failure signal to the control controller 12.
- step 103 the speed data of the car 1 calculated by the safety controller 13 based on the signal from the encoder 8 is used to determine whether the signal line of the encoder 8 is broken or the photoelectric sensor 9 is broken. When the speed data is 0, it is determined that the encoder is disconnected. However, this step also includes a state in which the photoelectric sensor fails 9 while the car 1 is stopped at the floor position and the detected object 10 cannot be detected. For this reason, it is not possible to specify which of the signal line disconnection of the encoder 8 and the failure of the photoelectric sensor 9 has occurred using the speed data. Therefore, the safety controller 13 transmits an unspecified failure signal to the control controller 12, and the control controller 12 performs the specification. That is, the control device detects a failure when the position data of the car is within the detection area of the position detection sensor and no detection signal is output. The processing of the controller 12 will be described later with reference to FIG.
- Step 108 When the signal line of the encoder 8 is broken or the photoelectric sensor 9 is broken, the safety controller 13 cannot satisfy its main function, and there is a risk that the safety is impaired. Therefore, the safety controller 13 cuts off the power supply to the motor 4 and the brake 5 and puts the car 1 into a braking state. Thereafter, this flow is terminated.
- the control device obtains the signal of the governor encoder, calculates the position data of the car from the signal of the governor encoder, and detects the position data of the car and the detected object in which the position detection sensor is installed in the hoistway.
- the disconnection of the governor encoder is detected on the basis of the detection signal that has detected. Further, the control device detects a failure of the position detection sensor.
- the above is the flow in which the safety controller 13 according to the embodiment of the present invention detects a failure including the disconnection of the encoder 8.
- FIG. 3 is a flowchart in which the controller 12 according to an embodiment of the present invention issues a failure including disconnection of the encoder.
- the controller 12 according to an embodiment of the present invention issues a failure including disconnection of the encoder.
- Step 201 It is determined whether the controller 12 has received an encoder disconnection signal from the safety controller 13. If it has been received, the process proceeds to step 202. If it has not been received, the process proceeds to step 203.
- Step 202 The controller 12 issues an encoder disconnection signal to a control center (not shown). Thereafter, this flow is terminated.
- Step 203 It is determined whether the controller 12 has received a photoelectric sensor failure signal from the safety controller 13. If it has been received, the process proceeds to step 204. If it has not been received, the process proceeds to step 205.
- Step 204 The controller 12 issues a photoelectric sensor failure signal to the control center. Thereafter, this flow is terminated.
- Step 205 It is determined whether the controller 12 has received an unspecified failure signal from the safety controller 13. If it has been received, the process proceeds to step 206. If it has not been received, this flow is terminated.
- Step 206 The controller 12 determines whether it has output a travel command. If the travel command has been output, it is considered that the above-mentioned step 107 has been reached due to the disconnection of the encoder 8, and the process proceeds to step 202 in order to report the encoder disconnection. If the travel command has not been output, it is considered that the process has reached Step 107 due to the failure of the photoelectric sensor 9, and the process proceeds to Step 204 in order to report the photoelectric sensor failure.
- the controller 12 issues a failure including the disconnection of the encoder.
- the controller 12 determines encoder disconnection and photoelectric sensor failure based on the signal from the safety controller 13 and its own travel command information, and issues the information to the control center.
- the disconnection of the signal line of the encoder 8 can be detected without requiring an additional configuration such as a dedicated disconnection detection circuit.
- the encoder 8 is provided in the governor 7, but may be provided in the motor 4. Further, in that case, the controller 12 may detect the disconnection of the encoder signal line or the failure of the photoelectric sensor 9 instead of the safety controller 13. Further, the photoelectric sensor 9 may be replaced with a non-photoelectric position detection sensor such as an electromagnetic coupling type.
Abstract
The present invention detects a disconnection of a signal wire of an encoder without the provision of a dedicated detection circuit. This control device acquires a signal of a governor encoder, calculates positional data of an elevator car from the signal of the governor encoder, and detects a failure of the governor encoder or of a position detection sensor on the basis of the positional data of the elevator car and a detection signal which indicates that the position detection sensor has detected an object to be detected installed inside a hoistway.
Description
本発明は、エレベーター制御システム及びエレベーター制御装置に関する。
The present invention relates to an elevator control system and an elevator control device.
エレベーターでは、かご位置や速度の検出に、エンコーダが使用されている。エンコーダの信号線が断線すると、かご位置や速度を誤検出するおそれがあり、危険である。そのため、エンコーダの信号線の断線を検出するための技術が考案されている。
In the elevator, an encoder is used to detect the car position and speed. If the encoder signal line is disconnected, the car position and speed may be erroneously detected, which is dangerous. For this reason, a technique for detecting the disconnection of the signal line of the encoder has been devised.
例えば、特許文献１には、制御装置からエンコーダに対して電源を供給し、エンコーダの処理基板をループして再び制御装置に戻されるラインを形成する電源線と、エンコーダから制御装置に戻された電源線の出力信号をディジタル信号に変換し、中央処理装置に入力させる断線検出回路を備え、この回路によって信号線の断線を検出することが記載されている。
For example, in Patent Document 1, power is supplied from the control device to the encoder, the processing board of the encoder is looped, and a power line that forms a line that is returned to the control device again, and the encoder is returned to the control device. It is described that a disconnection detection circuit for converting an output signal of a power supply line into a digital signal and inputting the digital signal to a central processing unit and detecting a disconnection of the signal line by this circuit is described.
しかしながら特許文献１の技術では、エンコーダの信号線の断線を検出するために、専用の断線検出回路を必要とする。そのため、断線検出回路なしにエンコーダの信号線の断線を検出することは考慮されていない。
However, the technique of Patent Document 1 requires a dedicated disconnection detection circuit in order to detect the disconnection of the encoder signal line. Therefore, it is not considered to detect the disconnection of the encoder signal line without the disconnection detection circuit.
エレベーター制御システムは、制御装置を含む。制御装置は、ガバナエンコーダの信号を取得し、ガバナエンコ―ダの信号から乗りかごの位置データを算出し、乗りかごの位置データと、位置検出センサが昇降路内に設置された被検出体を検出した検出信号とに基づいて、ガバナエンコーダの断線を検出する。
The elevator control system includes a control device. The control device acquires the governor encoder signal, calculates the position data of the car from the governor encoder signal, and detects the position data of the car and the object to be detected installed in the hoistway. The disconnection of the governor encoder is detected based on the detected signal.
本発明によれば、専用の検出回路を備えることなく、エンコーダの信号線の断線を検出することができる。
According to the present invention, it is possible to detect the disconnection of the encoder signal line without providing a dedicated detection circuit.
以下、本発明の一実施形態を図面を用いて説明する。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
図１は、本発明の一実施形態によるエレベーターの全体構成を示すものである。
FIG. 1 shows the overall configuration of an elevator according to an embodiment of the present invention.
本実施形態におけるエレベーターは、乗りかご１がカウンタウェイト２と主ロープ３で連結されている、いわゆるつるべ式のエレベーターである。モータ４が主ロープ３を駆動することにより、乗りかご１が昇降路内を昇降する。
The elevator in the present embodiment is a so-called slidable elevator in which the car 1 is connected by a counterweight 2 and a main rope 3. When the motor 4 drives the main rope 3, the car 1 moves up and down in the hoistway.
モータ４には巻上機ブレーキ５が備えられており、巻上機ブレーキ５が動作することで、モータ４の回転が阻止される。
The motor 4 is provided with a hoisting machine brake 5, and when the hoisting machine brake 5 operates, the rotation of the motor 4 is prevented.
ガバナロープ６は、乗りかご１の昇降に伴い牽引され、ガバナ７（ガバナプーリ）を回転させる。ガバナ７には、エンコーダ８（ガバナエンコーダ）が備えられており、エンコーダ８はガバナ７の軸に取り付けられ、ガバナ７共に回転してパルス信号を発生する。 乗りかご１の上部には、光電センサ９が備えられており、各階床位置に設置された被検出体１０を検出する。
The governor rope 6 is pulled as the car 1 moves up and down to rotate the governor 7 (governor pulley). The governor 7 is provided with an encoder 8 (a governor encoder). The encoder 8 is attached to the shaft of the governor 7 and rotates together with the governor 7 to generate a pulse signal. A photoelectric sensor 9 is provided on the upper portion of the car 1, and detects the detected object 10 installed at each floor position.
制御盤１１（制御装置）の内部には、制御コントローラ１２、および安全コントローラ１３が備えられている。制御コントローラ１２はモータ４およびブレーキ５へ動作指令を出力し、乗りかご１の昇降運転を制御する。また、制御コントローラ１２は、テールコード１４を介して、光電センサ９と接続されており、光電センサ９が検出体１０を検出した場合には、乗りかご１が乗客の乗降が可能な位置であることを表すドアゾーンにあると判断し、ドアの開閉を許可する。さらに制御コントローラ１２は、いずれかの装置の異常状態を検出した場合には、管制センターに発報し、保守員に知らせることができる。
A control controller 12 and a safety controller 13 are provided inside the control panel 11 (control device). The controller 12 outputs an operation command to the motor 4 and the brake 5 to control the raising / lowering operation of the car 1. The controller 12 is connected to the photoelectric sensor 9 via the tail cord 14, and when the photoelectric sensor 9 detects the detection body 10, the car 1 is a position where passengers can get on and off. It is determined that it is in the door zone indicating that the door is opened and closed. Furthermore, when detecting an abnormal state of any of the devices, the controller 12 can notify the control center and notify maintenance personnel.
安全コントローラ１３は、エンコーダ８および光電センサ９と接続されており、これらの信号に基づいて、乗りかご１の位置や速度を算出する。安全コントローラ１３は、乗りかご１の行き過ぎや過速といった異常状態を検出した場合には、モータ４およびブレーキ５への電源供給を遮断し、乗りかご１を制動状態にする。
The safety controller 13 is connected to the encoder 8 and the photoelectric sensor 9 and calculates the position and speed of the car 1 based on these signals. When the safety controller 13 detects an abnormal state such as overshooting or overspeed of the car 1, the safety controller 13 cuts off the power supply to the motor 4 and the brake 5 and puts the car 1 into a braking state.
さらに安全コントローラ１３は、エンコーダ８からの信号に基づいて、光電センサ９が昇降路内のどこに位置するかを表す位置データを算出する。エンコーダ８および光電センサ９が正常であれば、位置データが検出領域１５である場合には、光電センサ９は被検出体１０を検出しており、位置データが非検出領域１６である場合には、光電センサ９は被検出体１０を検出していない。なお、非検出体の据え付け誤差や、位置データの算出誤差を考慮し、検出領域１５と非検出領域１６は完全な相反関係ではなく、どちらでもない領域が存在する。すなわち、制御装置は、乗りかごの位置データが位置検出センサの検出領域内であり、検出信号が出力されている場合と、乗りかごの位置データが位置検出センサの検出領域外であり、検出信号が出力されていない場合は、ガバナエンコーダ及び位置検出センサは正常であると判断する。
Further, the safety controller 13 calculates position data indicating where the photoelectric sensor 9 is located in the hoistway based on the signal from the encoder 8. If the encoder 8 and the photoelectric sensor 9 are normal, if the position data is in the detection area 15, the photoelectric sensor 9 has detected the detected object 10, and if the position data is in the non-detection area 16. The photoelectric sensor 9 does not detect the detected object 10. It should be noted that the detection area 15 and the non-detection area 16 are not completely in conflict with each other in consideration of installation errors of non-detection bodies and position data calculation errors, and there are areas that are neither. That is, the control device detects whether the position data of the car is within the detection area of the position detection sensor and the detection signal is output, and the position data of the car is outside the detection area of the position detection sensor. Is not output, it is determined that the governor encoder and the position detection sensor are normal.
以上が、本発明の一実施形態におけるエレベーターの概略構成である。
The above is the schematic configuration of the elevator in one embodiment of the present invention.
図２は、本発明の一実施形態による安全コントローラ１３がエンコーダ８の断線を含む故障を検出するフローチャートである。以降、各ステップごとに本発明の一実施形態を説明する。
FIG. 2 is a flowchart for detecting a failure including disconnection of the encoder 8 by the safety controller 13 according to an embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described for each step.
ステップ１０１：安全コントローラ１３が、光電センサ９が被検出体１０を検出しているか否かを判定する。検出している場合には、ステップ１０２に移り、検出していなければステップ１０６に移る。
Step 101: The safety controller 13 determines whether or not the photoelectric sensor 9 detects the detected object 10. If it has been detected, the process proceeds to step 102, and if it has not been detected, the process proceeds to step 106.
ステップ１０２：安全コントローラ１３が、位置データが非検出領域１６か否かを判定する。上述のとおり、通常、位置データが非検出領域１６である場合には、光電センサ９は被検出体１０を検出していない。したがって、ステップ１０１のとおり、光電センサが被検出体１０を検出していると判定されたにもよらず、位置データが非検出領域１６にある場合には、エンコーダ８の信号線が断線しており、安全コントローラ１３が位置データを更新できていない場合、あるいは、光電センサ９が被検出体１０を検出していないにも関わらず、故障によって検出信号を安全コントローラ１３に送信している場合が考えられる。位置データが非検出領域１６にある場合には、ステップ１０３に移る。そうでない場合には、本フローを終了する。
Step 102: The safety controller 13 determines whether or not the position data is in the non-detection area 16. As described above, usually, when the position data is the non-detection region 16, the photoelectric sensor 9 does not detect the detection target 10. Therefore, as described in step 101, when the position data is in the non-detection region 16 even though it is determined that the photoelectric sensor detects the detection target 10, the signal line of the encoder 8 is disconnected. In some cases, the safety controller 13 has not been able to update the position data, or the photoelectric sensor 9 has not detected the detected object 10 and has transmitted a detection signal to the safety controller 13 due to a failure. Conceivable. If the position data is in the non-detection area 16, the process proceeds to step 103. Otherwise, this flow ends.
ステップ１０３：ステップ１０２にて、エンコーダ８の信号線の断線、または光電センサ９の故障が生じていると判定されている。すなわち、制御装置は、乗りかごの位置データが位置検出センサの検出領域外であり、検出信号が出力されている場合に、ガバナエンコーダ又は位置検出センサの故障を検出する。尚、本ステップでは、どちらに異常があるのかを判別するために、安全コントローラ１３が、エンコーダ８からの信号に基づいて算出する乗りかご１の速度データが０か否かを判定する。速度データが０である場合には、ステップ１０４に移り、そうでない場合には、ステップ１０５に移る。
Step 103: In step 102, it is determined that the signal line of the encoder 8 is broken or that the photoelectric sensor 9 has failed. That is, the control device detects a failure of the governor encoder or the position detection sensor when the position data of the car is outside the detection area of the position detection sensor and a detection signal is output. In this step, in order to determine which is abnormal, the safety controller 13 determines whether the speed data of the car 1 calculated based on the signal from the encoder 8 is zero. If the speed data is 0, the process proceeds to step 104; otherwise, the process proceeds to step 105.
ステップ１０４：速度データが０である場合には、エンコーダ８の信号線が断線していると判断できる。本ステップにて、安全コントローラ１３は制御コントローラ１２に対して、エンコーダ断線信号を送信する。続いて、ステップ１０８に移る。
Step 104: If the speed data is 0, it can be determined that the signal line of the encoder 8 is disconnected. In this step, the safety controller 13 transmits an encoder disconnection signal to the controller 12. Then, it moves to step 108.
ステップ１０５：速度データが０でないと判定された場合には、エンコーダ８の信号線の断線は生じていないため、光電センサ９の故障と判断できる。本ステップにて、安全コントローラ１３は制御コントローラ１２に対して、光電センサ故障信号を送信する。続いて、ステップ１０８に移る。すなわち、制御装置は、ガバナエンコーダの信号から乗りかごの速度データを算出し、速度データが０の場合はエンコーダの断線を検出し、速度データが０でない場合は位置検出センサの故障を検出する。
Step 105: If it is determined that the speed data is not 0, the signal line of the encoder 8 is not broken, so that it can be determined that the photoelectric sensor 9 is out of order. In this step, the safety controller 13 transmits a photoelectric sensor failure signal to the controller 12. Then, it moves to step 108. That is, the control device calculates the speed data of the car from the signal of the governor encoder, and detects the disconnection of the encoder when the speed data is 0, and detects the failure of the position detection sensor when the speed data is not 0.
ステップ１０６：光電センサが被検出体を検出していない場合には、本ステップにて、安全コントローラ１３が、位置データが検出領域１５か否かを判定する。上述のとおり、通常、位置データが検出領域１５である場合には、光電センサ９は被検出体１０を検出している。したがって、ステップ１０１にて、光電センサが被検出体１０を検出していないと判定されたにもよらず、位置データが検出領域１５にある場合には、エンコーダ８の信号線が断線しており、安全コントローラ１３が位置データを更新できていない場合、あるいは、光電センサ９が被検出体１０を検出しているにも関わらず、故障によって検出信号を安全コントローラ１３に送信していない場合が考えられる。位置データが検出領域１５にある場合には、ステップ１０７に移る。そうでない場合には、本フローを終了する。
Step 106: If the photoelectric sensor has not detected the detected object, in this step, the safety controller 13 determines whether or not the position data is the detection region 15. As described above, usually, when the position data is the detection region 15, the photoelectric sensor 9 detects the detection target 10. Therefore, if it is determined in step 101 that the photoelectric sensor has not detected the detected object 10, but the position data is in the detection region 15, the signal line of the encoder 8 is disconnected. A case where the safety controller 13 cannot update the position data or a case where the photoelectric sensor 9 detects the detected object 10 but does not transmit a detection signal to the safety controller 13 due to a failure is considered. It is done. If the position data is in the detection area 15, the process proceeds to step 107. Otherwise, this flow ends.
ステップ１０７：安全コントローラ１３は制御コントローラ１２に対して、不特定故障信号を送信する。ステップ１０３では、エンコーダ８の信号線の断線と光電センサ９の故障のどちらが発生しているかを判定するために、エンコーダ８からの信号に基づいて安全コントローラ１３が算出する乗りかご１の速度データを用いており、速度データが０である場合には、エンコーダ断線と判断していた。しかし、本ステップでは、乗りかご１が階床位置に停車中に光電センサが故障９し、被検出体１０を検出できなくなった状態も含まれる。そのため、速度データを用いてエンコーダ８の信号線の断線と光電センサ９の故障のどちらが発生しているかを特定することはできない。したがって、安全コントローラ１３は、制御コントローラ１２に不特定故障信号を送信し、制御コントローラ１２でその特定を行う。すなわち、制御装置は、乗りかごの位置データが位置検出センサの検出領域内であり、検出信号が出力されていない場合に、故障を検出する。制御コントローラ１２の処理は、図３を用いて後述する。
Step 107: The safety controller 13 transmits an unspecified failure signal to the control controller 12. In step 103, the speed data of the car 1 calculated by the safety controller 13 based on the signal from the encoder 8 is used to determine whether the signal line of the encoder 8 is broken or the photoelectric sensor 9 is broken. When the speed data is 0, it is determined that the encoder is disconnected. However, this step also includes a state in which the photoelectric sensor fails 9 while the car 1 is stopped at the floor position and the detected object 10 cannot be detected. For this reason, it is not possible to specify which of the signal line disconnection of the encoder 8 and the failure of the photoelectric sensor 9 has occurred using the speed data. Therefore, the safety controller 13 transmits an unspecified failure signal to the control controller 12, and the control controller 12 performs the specification. That is, the control device detects a failure when the position data of the car is within the detection area of the position detection sensor and no detection signal is output. The processing of the controller 12 will be described later with reference to FIG.
ステップ１０８：エンコーダ８の信号線の断線、あるいは光電センサ９の故障が発生している場合は、安全コントローラ１３がその主機能を満足できないため、安全性が損なわれる危険がある。そのため、安全コントローラ１３はモータ４およびブレーキ５への電源供給を遮断し、乗りかご１を制動状態にする。その後、本フローを終了する。
Step 108: When the signal line of the encoder 8 is broken or the photoelectric sensor 9 is broken, the safety controller 13 cannot satisfy its main function, and there is a risk that the safety is impaired. Therefore, the safety controller 13 cuts off the power supply to the motor 4 and the brake 5 and puts the car 1 into a braking state. Thereafter, this flow is terminated.
すなわち、制御装置は、ガバナエンコーダの信号を取得し、ガバナエンコ―ダの信号から乗りかごの位置データを算出し、乗りかごの位置データと、位置検出センサが昇降路内に設置された被検出体を検出した検出信号とに基づいて、ガバナエンコーダの断線を検出する。更に、制御装置は位置検出センサの故障を検出する。
That is, the control device obtains the signal of the governor encoder, calculates the position data of the car from the signal of the governor encoder, and detects the position data of the car and the detected object in which the position detection sensor is installed in the hoistway. The disconnection of the governor encoder is detected on the basis of the detection signal that has detected. Further, the control device detects a failure of the position detection sensor.
以上が、本発明の一実施形態による安全コントローラ１３がエンコーダ８の断線を含む故障を検出するフローである。
The above is the flow in which the safety controller 13 according to the embodiment of the present invention detects a failure including the disconnection of the encoder 8.
続いて、制御コントローラ１２が安全コントローラ１３から、エンコーダ断線信号、光電センサ故障信号、もしくは不特定故障信号を受信した場合の処理について図３を用いて説明する。
Subsequently, processing when the controller 12 receives an encoder disconnection signal, a photoelectric sensor failure signal, or an unspecified failure signal from the safety controller 13 will be described with reference to FIG.
図３は、本発明の一実施形態による制御コントローラ１２がエンコーダの断線を含む故障を発報するフローチャートである。以降、各ステップごとに本発明の一実施形態を説明する。
FIG. 3 is a flowchart in which the controller 12 according to an embodiment of the present invention issues a failure including disconnection of the encoder. Hereinafter, an embodiment of the present invention will be described for each step.
ステップ２０１：制御コントローラ１２が安全コントローラ１３からエンコーダ断線信号を受信しているか判定する。受信している場合には、ステップ２０２に移り、受信していない場合には、ステップ２０３に移る。
Step 201: It is determined whether the controller 12 has received an encoder disconnection signal from the safety controller 13. If it has been received, the process proceeds to step 202. If it has not been received, the process proceeds to step 203.
ステップ２０２：制御コントローラ１２がエンコーダ断線信号を管制センター（図示せず）に発報する。その後、本フローを終了する。
Step 202: The controller 12 issues an encoder disconnection signal to a control center (not shown). Thereafter, this flow is terminated.
ステップ２０３：制御コントローラ１２が安全コントローラ１３から光電センサ故障信号を受信しているか判定する。受信している場合には、ステップ２０４に移り、受信していない場合には、ステップ２０５に移る。
Step 203: It is determined whether the controller 12 has received a photoelectric sensor failure signal from the safety controller 13. If it has been received, the process proceeds to step 204. If it has not been received, the process proceeds to step 205.
ステップ２０４：制御コントローラ１２が光電センサ故障信号を管制センターに発報する。その後、本フローを終了する。
Step 204: The controller 12 issues a photoelectric sensor failure signal to the control center. Thereafter, this flow is terminated.
ステップ２０５：制御コントローラ１２が安全コントローラ１３から不特定故障信号を受信しているか判定する。受信している場合には、ステップ２０６に移り、受信していない場合には、本フローを終了する。
Step 205: It is determined whether the controller 12 has received an unspecified failure signal from the safety controller 13. If it has been received, the process proceeds to step 206. If it has not been received, this flow is terminated.
ステップ２０６：制御コントローラ１２は自身が走行指令を出力していたかを判定する。走行指令を出力していた場合には、エンコーダ８の断線により、上述のステップ１０７に至ったと考えられ、エンコーダ断線を発報するため、ステップ２０２に移る。走行指令を出力していなかった場合には、光電センサ９の故障により、ステップ１０７に至ったと考えられ、光電センサ故障を発報するため、ステップ２０４に移る。
Step 206: The controller 12 determines whether it has output a travel command. If the travel command has been output, it is considered that the above-mentioned step 107 has been reached due to the disconnection of the encoder 8, and the process proceeds to step 202 in order to report the encoder disconnection. If the travel command has not been output, it is considered that the process has reached Step 107 due to the failure of the photoelectric sensor 9, and the process proceeds to Step 204 in order to report the photoelectric sensor failure.
以上が、本発明の一実施形態による制御コントローラ１２がエンコーダの断線を含む故障を発報するフローである。このように、制御コントローラ１２は、安全コントローラ１３からの信号、および自身の走行指令情報に基づいて、エンコーダ断線および光電センサ故障を判断し、その情報を管制センターに発報する。これによって、エンコーダ８、あるいは光電センサ９のどちらを保守員が調査、修理すればよいのかが明確になり、保守作業性の向上がもたらされる。
The above is a flow in which the controller 12 according to an embodiment of the present invention issues a failure including the disconnection of the encoder. In this manner, the controller 12 determines encoder disconnection and photoelectric sensor failure based on the signal from the safety controller 13 and its own travel command information, and issues the information to the control center. As a result, it becomes clear which maintenance personnel should investigate and repair the encoder 8 or the photoelectric sensor 9, and the maintenance workability is improved.
以上のとおり、本発明によって、専用の断線検出回路など追加構成を必要することなく、エンコーダ８の信号線の断線を検出することができるようになる。
As described above, according to the present invention, the disconnection of the signal line of the encoder 8 can be detected without requiring an additional configuration such as a dedicated disconnection detection circuit.
なお、上記した実施形態は本発明を分かりやすく説明するために詳細に説明したものであり、本発明は必ず説明した全ての構成を備えるものに限定されるものでない。例えば、エンコーダ８はガバナ７に備えられているものとしたが、モータ４に備えられていてもよい。さらに、その場合に、安全コントローラ１３ではなく制御コントローラ１２がエンコーダの信号線の断線や光電センサ９の故障を検出してもよい。また、光電センサ９は、電磁結合式など、光電式でない位置検出センサに置き換えてもよい。
The above-described embodiment has been described in detail for easy understanding of the present invention, and the present invention is not limited to the one having all the configurations described. For example, the encoder 8 is provided in the governor 7, but may be provided in the motor 4. Further, in that case, the controller 12 may detect the disconnection of the encoder signal line or the failure of the photoelectric sensor 9 instead of the safety controller 13. Further, the photoelectric sensor 9 may be replaced with a non-photoelectric position detection sensor such as an electromagnetic coupling type.
１…乗りかご、８…エンコーダ、９…光電センサ、１０…被検出体、１２…制御コントローラ、１３…安全コントローラ、１５…検出領域、１６…非検出領域
DESCRIPTION OF SYMBOLS 1 ... Ride car, 8 ... Encoder, 9 ... Photoelectric sensor, 10 ... Detected object, 12 ... Control controller, 13 ... Safety controller, 15 ... Detection area, 16 ... Non-detection area
Claims (8)
- 昇降路内を昇降する乗りかごと、前記乗りかごと連動して回転するガバナプーリの軸に取り付けられたガバナエンコーダと、前記乗りかごを昇降させるためのモータを制御する制御装置と、前記乗りかごに備えられた前記乗りかごの位置を検出する位置検出センサと、前記位置検出センサから検知され、前記昇降路内に設置される被検出体と、を含むエレベーター制御システムであって、
前記制御装置は、前記ガバナエンコーダの信号を取得し、前記ガバナエンコ―ダの信号から前記乗りかごの位置データを算出し、前記乗りかごの位置データと、前記位置検出センサが昇降路内に設置された被検出体を検出した検出信号とに基づいて、前記ガバナエンコーダの断線を検出する
ことを特徴とするエレベーター制御システム。 A car that moves up and down in the hoistway, a governor encoder attached to a shaft of a governor pulley that rotates in conjunction with the car, a control device that controls a motor for raising and lowering the car, and the car An elevator control system comprising: a position detection sensor that detects a position of the car provided; and a detected body that is detected from the position detection sensor and is installed in the hoistway,
The control device acquires a signal of the governor encoder, calculates position data of the car from the signal of the governor encoder, and the position data of the car and the position detection sensor are installed in a hoistway. An elevator control system that detects disconnection of the governor encoder based on a detection signal that detects the detected object. - 請求項１に記載のエレベーター制御システムであって、
前記制御装置は、前記乗りかごの位置データが前記位置検出センサの検出領域内であり、前記検出信号が出力されている場合と、前記乗りかごの位置データが前記位置検出センサの検出領域外であり、前記検出信号が出力されていない場合は、前記ガバナエンコーダ及び前記位置検出センサは正常であると判断する
ことを特徴とするエレベーター制御システム。 The elevator control system according to claim 1,
In the control device, the position data of the car is within the detection area of the position detection sensor and the detection signal is output, and the position data of the car is outside the detection area of the position detection sensor. Yes, if the detection signal is not output, it is determined that the governor encoder and the position detection sensor are normal. - 請求項１に記載のエレベーター制御システムであって、
前記制御装置は、前記乗りかごの位置データと、前記位置検出センサが昇降路内に設置された被検出体を検出した検出信号とに基づいて、前記位置検出センサの故障も検出する
ことを特徴とするエレベーター制御システム。 The elevator control system according to claim 1,
The control device also detects a failure of the position detection sensor based on the position data of the car and a detection signal in which the position detection sensor detects a detected object installed in a hoistway. And elevator control system. - 請求項１に記載のエレベーター制御システムであって、
前記制御装置は、前記乗りかごの位置データが前記位置検出センサの検出領域外であり、前記検出信号が出力されている場合に、前記ガバナエンコーダ又は前記位置検出センサの故障を検出する
ことを特徴とするエレベーター制御システム。 The elevator control system according to claim 1,
The control device detects a failure of the governor encoder or the position detection sensor when position data of the car is outside a detection region of the position detection sensor and the detection signal is output. And elevator control system. - 請求項４に記載のエレベーター制御システムであって、
前記制御装置は、前記ガバナエンコーダの信号から前記乗りかごの速度データを算出し、前記速度データが０の場合は前記エンコーダの断線を検出し、前記速度データが０でない場合は前記位置検出センサの故障を検出する
ことを特徴とするエレベーター制御システム。 The elevator control system according to claim 4,
The control device calculates speed data of the car from the signal of the governor encoder, detects disconnection of the encoder when the speed data is zero, and detects the disconnection of the position detection sensor when the speed data is not zero. An elevator control system characterized by detecting a failure. - 請求項１に記載のエレベーター制御システムであって、
前記制御装置は、前記乗りかごの位置データが前記位置検出センサの検出領域内であり、前記検出信号が出力されていない場合に、故障を検出する
ことを特徴とするエレベーター制御システム。 The elevator control system according to claim 1,
The elevator control system, wherein the control device detects a failure when the position data of the car is within a detection area of the position detection sensor and the detection signal is not output. - 請求項３から５のいずれか一つに記載のエレベーター制御システムであって、
前記故障が検出された場合は、管制センターに発報する
ことを特徴とするエレベーター制御システム。 The elevator control system according to any one of claims 3 to 5,
An elevator control system characterized by reporting to a control center when the failure is detected. - 乗りかごと連動して回転するガバナプーリの軸に取り付けられたガバナエンコーダの信号を取得し、
前記ガバナエンコ―ダの信号から前記乗りかごの位置データを算出し、
前記乗りかごの位置データと、前記乗りかごに設置された位置検出センサが昇降路内に設置された被検出体を検出した検出信号とに基づいて、前記ガバナエンコーダ又は前記位置検出センサの故障を検出する
エレベーター制御装置。 Acquire the signal of the governor encoder attached to the axis of the governor pulley that rotates in conjunction with the car.
Calculate the position data of the car from the signal of the governor encoder,
Based on the position data of the car and the detection signal detected by the position detection sensor installed in the car in the hoistway, the governor encoder or the position detection sensor is failed. Elevator control device to detect.
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| CN112225038A (en) * | 2020-10-21 | 2021-01-15 | 南京卓欧信息技术有限公司 | Detection system for health state monitoring of elevator trailing cable signal cable |
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| JP2006298538A (en) * | 2005-04-19 | 2006-11-02 | Mitsubishi Electric Corp | Elevator device |
| JP2009270978A (en) * | 2008-05-09 | 2009-11-19 | Meidensha Corp | Breaking detecting device and breaking detecting technique of rotary encoder |
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